Method, module, terminal and system for providing coherent operation of radio frequency identification subsystem and wireless communication subsystem

FIELD: information technology.

SUBSTANCE: method involves determining one or more periods of activity of a wireless communication subsystem, determining one or more periods of inactivity based on one or more periods of activity; synchronising operation of the RFID subsystem with one or more periods of inactivity; and launching operation of the RFID subsystem in accordance with one or more periods of inactivity to provide essentially parallel operation of the wireless communication subsystem and the RFID subsystem.

EFFECT: broader functionalities owing to possibility of coordinated sharing of the RFID subsystem and the wireless communication subsystem.

44 cl, 20 dwg

 

The present invention relates to systems short-range communications. In particular, the present invention relates to kvaziodnorodnoj work readout interface radio frequency identification in the mobile communication terminal. More specifically, the present invention relates to the operation of the read interface RFID synchronization in time and frequency in relation to the provider.

Technology radio frequency identification (RFID) refers primarily to the local communication technology and, more specifically, to the local communication technology, including the technology of electromagnetic and/or electrostatic connection. Electromagnetic and/or electrostatic communication is implemented in the radio frequency region of the electromagnetic spectrum using, for example, RFID technology, which initially includes the defendants RFID, also called RFID tag and reader interfaces for RFID radio frequency defendants, also for simplicity called RFID readers.

In the near future mobile terminals will be used more and more different radio technologies. A growing number of different systems necessitates the development of a methodology of radio access networks with different data transmission speed, range, reliability and performance, specially adapted for the conditions of perfo the operation and accordingly, the use case. The impetus for the development are compatibility issues with mobile terminals using multiple radio bands.

RFID technology is one of the last decisions on merger terminal; it provides new features, such as, for example, merging a pair of devices, a secure key exchange or receive product information from elements provided by the RFID tag, using the device with RFID capabilities. Usually in consumer systems, the range of communication between RFID tag and reader RFID interface is only a few centimeters.

Currently, there are RFID readers built into mobile phones. The system, implemented at the present time, based on technologies of communication in the near field (NFC), which operates at a frequency of 13.56 MHz. In this technology interaction is provided by inductive coupling, resulting in the reader and the tag you want to use a fairly large frame antenna. In addition, the inductive coupling has its limitations when it falls within the range of the radio. Usually the maximum range at a frequency of 13.56 MHz with appropriate excitation current and the size of the antenna is approximately 1-2 m

The limited range of radio frequency user who classification at 13.56 MHz has increased the interest of suppliers and services procurement to higher frequencies, called UHF (ultra-high and ultra-high frequencies. At ultra-high frequencies (in the 868 MHz in Europe and 915 MHz in the United States in accordance with the frequency distribution) communication range in industrial and professional fixed installations up to 10 meters, allowing for the use of entirely new systems compared to systems with a frequency of 13.56 MHz. The operation of RFID at UHF and microwave frequencies based on inverse scattering, i.e. the reader (interrogator) generates the excitation signal/request and tag radio frequency identification (Respondent RFID) changes the input impedance of the antenna in accordance with the specified template-dependent data.

Currently, the most important forum for standardization in the UHF range is EPCglobal, which is leading the development of industry standards for a code of electronic products (EPC) to support the use of RFID technology in modern popular retail chains, with a huge amount of information. Immediate goal is to replace bar codes on cargo pallets, for a longer period has been planned to replace bar codes on packages and some individual products. If these goals are realized, the consumer will be able to get to your terminal with a built-in RFID communication product information or a link to more the detailed information simply by touching a product, which is supplied by the defendant radio frequency identification approved by EPCglobal.

The excitation power generated by the engine RFID reader, is quite high, it is about 100 mW in consumer systems related to the mobile terminal, and up to several watts in professional stationary systems. For RFID in the UHF band in Europe uses the ISM band 868 MHz, and in the United States - 915 MHz. It is seen that the frequencies used are close to the cellular frequency: for receivers and transmitters of cellular mobile stations in Europe are frequency 880-915 and 925-960 MHz and in the United States - 824-849 and 869-894 MHz. Due to the fact that the subsystem of the RFID reader emits a powerful enough signal excitation RFID, working in the same mobile terminal transmitter due to the imperfect nature of the exciting signal RFID and limited suppression of high-frequency filters may experience strong interference. In practice, the distance between the antenna of the RFID reader and antenna for cellular communication may be only a few centimeters, therefore, crosstalk can be of the order of 10-20 dB. Taking the high-frequency power subsystem RFID equal to 20 dBm (approximately 100 mW), at the input of the antenna of the cellular transceiver can see the we signal is at a level of 0 dBm. Cellular antenna and symmetrise device with their frequency response, and input high-pass filter, to some extent, suppress noise, but the level of the resulting signal remains high and in some situations can cause a lot of interference and even necessary to block the signal provider. In extreme cases, when searched for the best solution on unification of devices, the mobile communication device and the RFID reader can use the same antenna as the operating frequencies of these systems are usually located close to each other and therefore one antenna can serve both systems.

The aim of the present invention is to provide methodologies and tools to enable joint and coordinated use of RFID subsystem and the wireless communication subsystem. In particular consider the coexistence of systems applicable to the cellular communication subsystem and the subsystem RFID integrated into one terminal device. The RFID subsystem causes interference due to an increase in the minimum noise level in any of the subsystems of a wireless communication operating in the mobile terminal.

Ways to achieve the objective of the present invention is described in independent clauses appended claims.

In accordance with suspectum the present invention presents a method for scheduling communications over a wireless communication subsystem and the subsystem RFID. Determine one or more periods of activity of the wireless communication subsystem. On the basis of one or more specific periods of activity is determined by one or more periods of inactivity. The RFID subsystem is synchronized with one or more periods of inactivity. In addition, the RFID subsystem is activated in accordance with one or more periods of inactivity thus, what is provided essentially parallel operation of subsystems of a wireless communication and RFID subsystem.

In accordance with another aspect of the present invention presents a computer software product that provides the ability to "listen before dialogue that allows you to define one or several sub-bands of frequencies applicable for RFID operating in the subsystem of the RFID reader. The computer program product includes code for performing steps of the method corresponding to the above implementation variant of the invention, when a program running on your computer, terminal, network device, a mobile terminal, the terminal capability of a mobile phone or integrated circuit specialized applications. A computer program product containing code segments may be stored on computer-readable media as an alternative, one or more instructions, adapted to perform the above steps of the method corresponding to the specified case of carrying out the invention can perform integrated circuit specialized purposes (ASIC), which is equivalent to the specified computer software product.

In accordance with another aspect of the present invention proposed a planning module, designed for planning communication through the wireless communication subsystem and the subsystem RFID. The planning module can work with the wireless communication subsystem and the subsystem RFID tag and configured to identify one or more periods of activity of the wireless communication subsystem and receiving one or more periods of inactivity on the basis of one or more specific periods of activity. The planning module is synchronized with one or more periods of inactivity. The planning module is generated trigger signal, which is supplied to the RFID subsystem to run in accordance with the one or more received by intervals of inactivity, which provides essentially parallel subsystems of a wireless communication and RFID subsystem.

In accordance with another aspect of the present invention proposed terminal device with the possibility of planned communication through the wireless subsystem is vodnoy communication and RFID subsystem, located in it. The terminal device includes a planning module that works with the wireless communication subsystem and the subsystem RFID. The planning module configured to determine one or more periods of activity of the wireless communication subsystem and receiving one or more periods of inactivity on the basis of one or more specific periods of activity. The planning module is synchronized with one or more periods of inactivity. The planning module is generated trigger signal, which is supplied to the RFID subsystem to run in accordance with the one or more received by intervals of inactivity, which provides essentially parallel subsystems of a wireless communication and RFID subsystem.

In accordance with another aspect of the present invention proposed a system that provides for scheduled communication via the cellular communication subsystem and the subsystem RFID available in the system. In addition, the system includes a planning module that works with the cellular communication subsystem and subsystem RFID. The planning module configured to determine one or more periods of activity of the wireless communication subsystem and receiving one or more periods of inactivity on the basis of one or more defined what's periods of activity. The planning module is synchronized with one or more periods of inactivity. The planning module is generated trigger signal, which is supplied to the RFID subsystem to run in accordance with the one or more received by intervals of inactivity, which provides essentially parallel subsystems of a wireless communication and RFID subsystem.

For a more complete acquaintance with the present invention and an understanding of how it can be implemented, the following references to the attached drawings, on which:

Figure 1 schematically shows a principal block diagram showing typical components of a defendant RFID and subsystems of the RFID reader;

On figa schematically shows a principle block diagram of a portable mobile communication terminal with the ability RFID tag in accordance with a variant implementation of the present invention;

On fig.2b schematically shows a principle block diagram of a subsystem of the RFID reader in accordance with a variant implementation of the present invention;

On figa-3C schematically shows a principle block diagrams of different implementations of a portable mobile communication terminal with the possibility of RFID;

On figa-4d schematically shows the operating sequence applicable to the planning mechanism to enable planning which has been created due RFID and cellular communication in accordance with the variants of implementation of the present invention;

On figa schematically shows an example timing diagram activity GSM/EDGE in accordance with a variant implementation of the present invention;

On fig.5b (1)-(4) schematically shows an example timing diagram of communication WCDMA compressed mode frame in accordance with the variants of implementation of the present invention;

On figa more detail shows an example timing diagram activity GSM/EDGE and timeline chart activity due to radio frequency identification figa in accordance with the variant of realization of the present invention;

On fig.6b schematically shows the envelope of the radio frequency subsystem RFID reader is turned on and off corresponding implementation variant of the present invention;

On figs schematically shows the coding of the pulse repetition period of the data symbols "0" and "1" RFID communication in accordance with a variant implementation of the present invention;

On fig.6d schematically illustrates the timing diagram of RFID communication subsystem of the RFID reader and the defendant RFID tag in accordance with a variant implementation of the present invention; and

On file schematically shows the sequence of communication processes RFID and working conditions of the defendant RFID tag in accordance with a variant implementation of the present invention.

In the following description, references to the same and/or identical to the components will be given the same numbers.

Further, the concept of the present invention will be described with reference to cellular communication system, which, in particular, support cellular communications standards GSM, GSM/GPRS, GSM/EDGE, cdma2000 and/or UMTS. In addition, the RFID communication will be described with reference to the communication of RFID in the range of ultra-high frequency (UHF), which, in particular, supports the EPCglobal standard. It should be noted that the above technical characteristics of the cellular communication subsystem, and the subsystem of the RFID reader shown for illustration. It should be understood that the invention is not limited to these characteristics.

Initially, the RFID technology was developed and introduced to monitor electronic products, control products and logistics, primarily for replacement identification labels with bar codes, which are currently used to control products and logistics. A typical embodiment of the defendant RFID on the modern technical level shown with reference to figure 1. The typical block 10 of the Respondent RFID essentially includes an electronic circuit, in the example depicted in the form of a logic circuit 12 of the Respondent, which has a means of storing data, depicted here as a memory 13 of the Respondent, and the radio frequency interface 11, which connects the antenna 14 and a logic circuit 12 of the Respondent. About Becici RFID usually placed in small containers, placed in the device and marked glued labels. Depending on requirements provided the use cases defendants radio frequency identification (e.g., data rate, power query, transmission range etc) implemented various types of data/information in the range of 10-100 kHz to several GHz (for example, 134134 kHz, 13.56 MHz, 860 MHz-928 MHz, and so on). We can distinguish two main classes of defendants RFID. Passive responders RFID activated and excited by RFID readers that generate stimulating or requesting signal, such as a radio frequency signal at a certain frequency. Active responders RFID tags contain their own power source (not shown) for excitation, such as a battery or a battery.

When activated, the defendant RFID unit 20 of the RFID reader, the information recorded in the memory 13 of the Respondent, is modulated radio signal (for example, radio frequency request signal, which is radiated by the antenna 14 of the block 10 of the responder tag with a view of further recognition and adopted by the unit 20 of the RFID reader. Specifically, when using a passive responder radio frequency identification (for example, when there is no local power source) the defendant RFID essentially excited variables on BP is like radio frequency signal wave, generated by the requesting RFID reader. When the antenna associated with the defendant 10 RFID enters the RF field, there arises a voltage. The voltage used to excite the defendant 10 RFID and provides a reverse transfer of information from the defendant RFID tag to the RFID reader, which is sometimes called inverse scattering.

Typical modern responders RFID standards RFID, such as ISO 14443 type A. the Mifare standard, the standard of communication in the near field (Near Field Communication, NFC) and/or the EPCglobal standard.

In accordance with the purposes of the defendants RFID information or data stored in the memory 13 of the Respondent, may be encoded as "hard" or "soft". "Hard" coding means that the information or data recorded in the memory 13 of the Respondent, are set in advance and cannot be changed. Soft coding means that the information or data recorded in the memory 13 of the Respondent, can be configured by external devices. The configuration memory 13 of the Respondent can be carried out via radio-frequency signal received through the antenna 14, or configuration interface (not shown), which allows access to the memory 13 of the defendant.

The block 20 of the RFID reader typically contains a radio frequency interface 21, the read logic interface 22 and the 23 data. The interface 23 of the data transmission being connected to the main system, such as a portable terminal, which, on the one hand, controls the operation of the RFID reader by using the instructions that are transmitted to the main system on the readout logic 22 via the interface 23 of the transmission data, and on the other hand, takes the data provided by the read logic 22 via the interface 23 of the data. When you execute the read logic instructs the RF interface 21 on the formation of the exciting/requesting signal, which is radiated by the antenna 24, which is connected with the radio frequency interface 21 of the block 20 of the RFID reader. If the defendant RFID, such as the unit 10 of the Respondent RFID tag is within range of excitation/requesting signal, the defendant RFID excited and the result is received modulated radio frequency signal (RF signal back-scattering). In particular, the modulated RF signal that carries the data stored in the memory 13 of the transmitter, modulated in arousing/requesting the radio frequency signal. The modulated RF signal is combined in the antenna 24, demodulated RF interface 21 and is fed to the readout logic 22, which is responsible for retrieving data from the demodulated signal. In the end the result is ATA data obtained from a received modulated radio frequency signal, transmitted via the data interface on the main system.

Figure 2 shows the block diagram of the components of the portable electronic terminal 100 in the example the target mobile/cell phone. Portable electronic terminal 100 as an example is any type of processing terminal or device applicable to the present invention. You should understand that the present invention is not limited depicts a portable electronic terminal 100, as well as any other specialized type processing terminal or device.

As mentioned above, depicts a portable electronic terminal 100 in the example depicted in the form of a portable user terminal with the possibility of cellular communication. In particular, the portable mobile terminal 100 is presented in the form of a processor or microcontroller that contains the Central processing unit (CPU) and a mobile processing unit (MPU) 110, respectively, the memory 120 of data and applications, wireless communications, including cellular radio interface (I/F) 180 adapted accordingly RF antenna module 181 and 185 subscriber identity, a means of input/output user interface typically includes the s means 140 input/audio output (I/O) (essentially a microphone and a speaker), keys, a small keyboard and/or keyboard controller (Ctrl) 130 keys, the display controller (Ctrl) 150 screen and (local) wireless and/or wired interface (I/F) 160 data.

Portable electronic terminal 100 is controlled by a Central processing unit (CPU) or a mobile processing unit (MPU) 110, typically running an operating system or master control program that controls the functions, properties and functionality of the portable electronic terminal 100 by allowing their use by the user. The screen and the controller (Ctrl) 150 screen is normally controlled by the processor (CPU/MPU) 110, and provide the user with information including the (graphical) user interface (UI)that allows the user to use the features, properties and functionality of the portable electronic terminal 100. Keyboard and controller (Ctrl) 130 keyboard are used to allow the user to enter information. Keyboard information being served by the controller (Ctrl) keyboard processor (CPU/MPU) 110, which may receive instructions and/or managed in accordance with the received information. Means 140 input/audio output (I/O) includes at least a speaker for audio output and microphone to record audiosig the Ala. Processor (CPU/MPU) 110 may control the conversion of the audio data in the audio output signals and the input audio signals into audio data, for example audio data have a format suitable for transmission and storage. Converting the audio signal into digital audio and Vice versa essentially performed by analog circuits and analog-to-digital conversion, for example, based on a digital signal processor (DSP, not shown).

The keyboard used by the subscriber to enter data, for example, includes alphanumeric keys and special keys telephony, as in keyboards ITU-T, one or more multi-function keys, whose functions depend on the context, the scroll key (up/down and/or left/right and/or any combination thereof to move the cursor on the screen, or browse through the user interface (UI), four-way button basepairing button, joystick, and/or similar controller.

Portable electronic terminal 100 in accordance with a particular variant of the invention shown in figure 2, includes a subsystem 180 cellular connected with the radio frequency antenna 181 and work with module 185 subscriber identity (SIM). Subsystem 180 cellular communication made in the form of a cellular transceiver for receiving signals from the cellular antenna decoding : CTCSS / DCS is Denmark signals, their demodulation and conversion to baseband frequencies. Subsystem 180 cellular implements wireless interface, which works together with the module 185 subscriber identity (SIM) for communication with a corresponding base station (BS), base station controller, a node b and a similar radio access networks (RAN) terrestrial mobile communications networks (PLMN). Thus, the output signal of a subsystem 180 cellular consists of a stream of data that may require further processing by the processor (CPU/MPU) 110. Subsystem 180 cellular arranged in the form of a cellular transceiver, also adapted to receive data from a processor (CPU/MPU) 110, which must be transmitted wirelessly to a base station (BS) radio access network (RAN) (not shown). Therefore, the subsystem 180 cellular encodes, modulates and increases the frequency of the data signals to radio frequency signals used in wireless transmission. Then the antenna (shown schematically) of the portable electronic terminal 100 transmits the received RF signals to the corresponding base station (BS) radio access network (RAN) terrestrial public mobile (PLMN). Preferably subsystem 180 supports cellular digital cellular 2nd generation, such as GS (global system for mobile communications), which may have support for GPRS the General packet radio service purposes) and/or EDGE (enhanced data GSM networks, generation 2.5), digital cellular network, 3rd generation, such as CDMA (multistation access, code-division multiplexing), in particular including UMTS (universal mobile telecommunications system), cdma2000, and/or any such related or future standards for cellular telephony (generation 3.5, 4th generation).

Wireless and/or wired interfaces 160 data is represented schematically and should be interpreted as a representation of one or more data interfaces, which can be an addition or alternative to the above subsystem 180 cellular implemented in the example portable electronic terminal 100. Currently, there are many wireless communication standards. For example, the portable electronic terminal 100 may include one or more wireless interfaces operating in accordance with the IEEE HH, standard Wi-Fi, WiMAX, any standard Bluetooth (1.0, 1.1, 1.2, 2.0+EDR, LE), ZigBee (wireless private networks (WPAN), standard infrared data transmission (IRDA), wireless USB (universal serial bus) and/or any currently available standards and/or any future standards forehand and data such as UWB (ultrawideband radio).

The interface 160 data transfer (I/F) must also be perceived as displaying one or more data interfaces, in particular including wired data interfaces implemented in the example portable electronic terminal 100. Such wired interfaces may support a wired network such as Ethernet LAN (local area network), PSTN (public switched telephone network sharing), DSL (digital subscriber line) and/or other existing standards as well as standards that will emerge in the future. The interface 160 data transfer (I/F) may also be any type of data interface, including any custom serial/parallel interface, a universal serial bus (USB), Firewire (in accordance with any IEEE 1394/1394a/I 394b etc), interface memory bus, comprising matching the ATAPI bus (batch peripheral interface), the interface MMC (multimedia card)interface for SD cards (SecureData)interface for Flash cards and other similar interfaces.

Portable electronic terminal 100 according to the embodiment of the present invention contains the subsystem 190 RFID reader that is connected with the radio frequency antenna 194. Here reference should be made to Fig. and the above description, where the General principles underlying module of the RFID reader. Subsystem 190 RFID reader can be included in the terminal 100, connected to the stationary terminal 100 or may be connected to the terminal 100 separately. In addition, the subsystem 190 RFID can be implemented in a functional case for a portable electronic terminal 100, which is separately connected to the portable electronic terminal 100. As the preferred option subsystem 190 RFID reader can be integrated in such a functional case. In accordance with the idea of the present invention, the terminal 100 contains 200 unit planning. The planning unit 200 is connected to the terminal 100, the interface 180 cellular and/or subsystem 190 RFID reader. Further details relating to specific embodiments of the subsystem 190 RFID reader unit 200 planning.

Components and modules shown in figure 2, can be embedded in a portable electronic terminal 100 as separate modules or as any combination thereof. Preferably one or more components and modules of the portable electronic terminal 100 can be combined with a processor (CPU/MPU), forming a system-on-chip (SoC). Such a single-chip system (SoC) as the preferred the " integrates all components of a computer system in one microcephalia system may include digital, analog, mixed, and often radio-frequency means. Generic application is embedded and portable systems, which are particularly limited in size and power consumption. Such a typical single-chip system contains a number of integrated circuits that perform various tasks. They may contain one or more components, including a processor (CPU/MPU), memory (RAM memory, ROM is permanent memory), one or more blocks UART (universal asynchronous receiver transmitter), one or more serial/parallel/network ports, chip DMA controller (direct memory access), GPU (graphics processing unit), DSP (digital signal processor), etc. Recent improvements in semiconductor technology have enabled the use of integrated circuits with a high degree of integration to increase the degree of integration, which provided the opportunity to integrate all components of the system on a single microchip.

Typical software applications portable electronic terminal 100 include basic applications to provide data and/or voice communication application for managing contacts, calendar, media player, an application for viewing WEB/WAP and/or applications for messaging, supports the abuser, for example, short message service (SMS)service multimedia messaging service (MMS) and/or e-mail service. Modern portable electronic terminals are programmable, i.e. such terminals have interfaces for programming and performance levels, allowing any user or programmer to create and install applications from the portable electronic terminal 100. It is now widely recognized as a device-agnostic programming language JAVA, which is available in a special version adapted to the functional characteristics and requirements of mobile devices and is called JAVA Micro Edition (ME). To enable execution of applications created based on JAVA ME, the portable electronic terminal 100 has a means of JAVA MIDP (mobile information device profile), which establishes the interface between an application program JAVA ME, also called JAVA MIDIet, and the portable electronic terminal 100. JAVA MIDP (mobile information device profile) implements the run-time environment JAVA virtual machine designed to execute JAVA applications MIDIets. However, it should be understood that the present invention is not limited to the programming language JAVA ME and JAVA applications MIDIets; to this invention are applicable to other programming languages, in which osobennosti own programming languages.

The basic concept of the present invention relates to the problem of co-existence of the reader 190 RFID and mobile radio interface 180 and their parallel operation. The present invention will be described with reference to the communication of RFID in the range of ultra-high frequency (UHF), in particular, supports RFID corresponding to EPCglobal. In addition, the concept of the present invention will be described with reference to a cellular radio interface 180 that supports, in particular, GSM, GSM/EDGE, WCDMA and/or cdma2000. However, it should be noted that the present invention is not limited to these special variants of implementation. Specialists on the basis of this description should be understood that the concept of the present invention is similarly applicable to any other standard radio frequency identification and wireless standard (in particular, including any other cellular standards and communication standards for wireless networks).

As mentioned above, for RFID in the range of ultra-high frequency special ranges, depending on the region:

Range UHF RFID 868 ISM (Europe): 868-870 MHz (at Max. capacity 500 mW); and

Range UHF RFID 915 (USA): 902-928 MHz (at Max. power 4W).

In accordance with various standards for cellular communications is assigned a different frequency band. In the table below, not only the us versions of the used frequency band; the table is not exhaustive. For future reference there are conventional abbreviations for the various frequency ranges.

The system nameFrequency range uplink (MHz)Frequency range downlink (MHz)
GSM 900 (Europe):890-915935-960
GSM 1800 (Europe):1710-17851805-1880
GSM 850 (USD):824-849869-894
GSM 1900 (USA):1850-19101930-1990
cdma2000 (USA):1850-19101930-1990
WCDMA 2100 (Europe):1920-19802110-2170

Professionals need to understand that the frequency bands used for RFID in the range of ultra-high frequency and cellular communication, do not overlap. Thus, the parallel operation of mobile communication and communications radio frequency identification in the range of ultra-high frequency can be obtained by using the radio the frequency components of the highest quality, at least in theory. In practice, these components are of higher quality will take up a lot of space and expensive. Therefore, from the point of view of price and size, it would be preferable solution to implement coordinated work of these radios in the time domain.

Exciting/requesting signal, for example the downward signal of the RFID reader in the range of ultra-high frequency, typically has an amplitude or photomodulation carrier. The signal strength depends on the application, but it can be several watts for industrial purposes and, perhaps, a few hundred milliwatts for use in portable terminals. Typically, the RFID reader emits excitation signal based on the user action (for example, an input signal is detected when the user clicks a button) or on request of the application program (for example, a signal is generated by the program at the end of the countdown timer). During the data exchange between the RFID reader and the defendant RFID reader RFID continuously emits a signal carrier frequency to support the defendant RFID in the active state (see description above). Uncoordinated radiation in a strong carrier signal during any activity cellular radios will have a negative impact on its working is the features and therefore this situation should be prevented.

In accordance with a variant of implementation of the present invention, the portable terminal 100 has a control unit, which implements the operation of the RFID reader only in accordance with any activity of the cellular transceiver so that was achievable parallel or simultaneous operation of RFID and cellular.

Here it should be understood that parallel and/or simultaneous operation of communication devices can be controlled at the physical level (low level) temporal multiplexing, where the multiplexing of the time invisible to the user, resulting in the impression of essentially parallel and/or concurrent communication devices.

In the first case, the control unit 200 planning contained in the portable terminal 100, before allowing the RFID reader to start the survey and a link, checks are turned off (completely) cellular radio. This first basic method is quite simple, as in the case when the cellular connection is required immediately after activity due to radio frequency identification, it needs some time to turn on your cellular device.

In a more complex method, the active RFID communication is planned in such a way that it took place in the periods of inactivity of cellular communication. A similar principle can be used is n for different modes of operation of the terminal. When the terminal is not connected to a cellular network, the RFID reading begins almost immediately. Regardless of the discussed system the terminal idle/standby listens for messages call, performs the measurement with respect vnutrizonovyh and mistovich power levels, the availability of other systems and, if necessary, sends messages to random access. In this state for longer battery life, the required activity is weak and therefore for link activity RFID there is a reasonable amount of time. In the active state terminal is busy voice call or data communication via a data connection. This state, and the state of the preceding and following the active state (for example, GPRS ready state) require significant activity, so the time available for reading RFID, quite limited. For example, there is only (8-2)×0.577 MS≈3.5 MS time (it should be noted that in accordance with the structure of a time frame GSM each frame contains eight time slots (slots)for reading radio frequency identification during an active call GSM, as it is very likely that when cell transfer (1 time interval of 8) and receive (1 interval) due to the activity of reading RFID in these time intervals will be some interference.

On fig.2b depicted subsystem RFID-based subsystem 190 RFID reader corresponding to a variant implementation of the present invention. As mentioned above, the subsystem 190 RFID reader includes typical components required for operation of the RFID reader, i.e., the interface 191 data transfer (I/F)connected to the main system (i.e. portable terminal 100), the read logic 192, for example, implemented on the basis of the microcontroller (MC), and the wireless interface 193, coupled with the RF antenna 194. Watchdog logic circuit 195 rela is availa able scientific C variant implementations of the present invention is designed to control the operation of the subsystem 190 RFID reader. Watchdog logic circuit 195 may be embedded in the read logic or implemented separately. The guard logic 195 runs through the terminal 196 can receive the trigger signal from the main system (portable terminal 100). The trigger signal is sent by the planning unit 200 is formed in accordance with the scheduling algorithm.

In more detail, the scheduling algorithm will be described below. It should be noted that the interface 191 data transfer (I/F)connected to the main system can be similarly adapted to receive configuration data and instructions from the main system. Configuration data and instructions to allow you to set the parameters of the RFID reader.

On figa-3C shows a schematic diagram of the main components that provide parallel operation of communications devices in accordance with alternative implementations of the present invention.

The main system is controlled by the user through the user interface (UI) 30, through which the user gains access to the main functions of the system (for example, the portable terminal 100). Considering the operation of multiple radios, the control performed by the user through the user interface (UI) 30, is performed via the control unit 200 of planning, the cat is who is placed between the subsystem 180 cellular and sub-system 190 RFID reader. The layout control unit 200 planning allows, on the one hand, to obtain information about the current operations of the radio communication made through a subsystem 180 and cellular subsystem 190 RFID reader, and on the other hand, to transfer this information and data entered by the user through the user interface, the outline of the scheduling algorithm to ensure parallel operation of multiple radios. Similarly, management can also be implemented using an application program 35, which enables the control subsystem 180 cellular and sub-system 190 RFID reader via the control unit 200 planning.

Speaking more on figa-3C depict various options for the layout of antennas, including a separate antenna 181 and 194 for the subsystem 180 and cellular subsystem 190 RFID reader, a common antenna 182 connected to the subsystem 180 cellular and sub-system 190 RFID reader, and a common antenna 182 connected to both systems 180, 190 through switch 196. General antenna 182 preferably is a multi-frequency antenna, i.e. an antenna, the characteristics of which are adapted for multiple frequency bands. Such antennas, for example, are used in dual and triple band terminal GSM. On fig.3b in the signal path between the antenna 183 and under what system 180 cellular, as well as subsystem 190 RFID reader may be included bandpass filters (not shown) for separating RF signals received by the antenna 183, so that the frequencies of the different frequency bands received by the appropriate subsystem 180 or 190 in accordance with the respective working frequency ranges. In the variant shown in figs, the RF switch 196 is arranged to attach the shared antenna 182 to the subsystems 180 and 190 in accordance with their activity, which are synchronized in time. RF switch 196 may also be implemented as a tunable bandpass filter. The signal for adjustment circuit bandpass filter is supplied from the control unit 200 planning. The separation of the signals shown figs, it is advantageous for RF circuits subsystem 180 and cellular subsystem 190 RFID reader, because RF signals generated by one of the subsystems 180 or 190 not applicable to another. In particular, an embodiment of the invention, shown in the diagram on figs generates the requirement for planning the operation of both subsystems 180 and 190 sync time. General antenna 182 for choosing connected to one subsystem 180 and 190. Reception and radiation of radio frequency signal is matched with the public be performed by a subsystem 180 cellular or subsystem 190 RFID.

The planning unit 200 may be implemented separately from the subsystem 180 and 190, together with subsystems 180 and 190 within the communication subsystem in several bands, it can also be made on the basis of one or more of its own hardware and/or software components, these components of block scheduling can be a part of the terminal 100, the cellular communication subsystem 180 or subsystem 190 RFID.

On figa shows total operating sequence of the scheduling algorithm, the corresponding variant of implementation of the present invention. Although the working sequence is shown in a linear sequence, you must understand that it is the basis of the algorithm of the control loop that is executed many times. On the basis of the work cycle control and the possibility of obtaining information about the current operating frequency subsystem 180 cellular control subsystem 190 RFID reader.

In a preferred embodiment, the unit 200 planning with the possibility of subsequent operations, when the user or the application program requests the subsystem 190 RFID reader.

In operation S100 determines the current frequency range, in which the subsystem 180 of cellular communication. Determining the current frequency range is carried out either by the consultative terminal at this time in the standby state or in an active state. It should be noted that the terms "idle", "idle" and "active state" indicate the operation mode relating to the operation subsystem 180 of cellular communication. In particular, the idle/standby means the mode of operation of the subsystem 180 cellular, which performs a search of the call and measurements, but voice communication or data transfer through the subsystem 180 cellular communication is not performed. In the active state through the subsystem 180 cellular communication is voice communication and/or transmission of data; communication is performed via the radio access network (RAN) land mobile network sharing (PLMN)in which registered the cellular communication subsystem.

In operation S110, it is checked in which the frequency range currently works subsystem 180 cellular 850 MHz or 900 MHz (see the definition of frequency bands above). In that case, if the interface cellular operates in a different frequency range, which is far enough away from the ultra-high frequency used by the subsystem 190 RFID reader, it can be assumed that the parallel subsystem 180 and cellular subsystem 190 RFID possible with the least interference. The working sequence proceeds to operation S220, which allowed parallel whom I work. However, it should be noted that the resolution of parallel operation is possible only when using a radio frequency circuit which allows the parallel reception and radiation of radio frequency signals at different frequencies, as shown in figa and 3b. An embodiment of the RF circuits shown on figs, does not allow such parallel operation. In this case, is used to synchronize the time, which is described below with reference to operation S160-S230.

In practice, almost all mobile terminals that are commercially available now and which will be available in the future, are at least multiband terminals or, preferably, multi-band multi-system terminals. Typical terminals corresponding to the GSM standard, support GSM 900/1800 or GSM 850/1800/1900. Moreover, the latest multi-system terminals supporting GSM 900/1800/1900 and WCDMA 2100 (UMTS). This also applies to mobile terminals that support the CDMA standard; for example, mobile terminals with support for cdma2000 touch CDMA 850/1900 options and combinations available frequencies. It should be noted that mobile terminals described above are given for illustration only; the present invention is not limited to any individual, multi-band and/or multi-system terminals.

Thus, the portable terminal 100 may request the implementation of the reception and transmission in idle mode or active mode at frequencies outside 860-960 MHz or at least in a frequency range that is located at a sufficient distance, at least in the case when the communication RFID at ultra-high frequencies. When the subsystem 180 cellular operates in the frequency range of 850 MHz or 900 MHz, in operation S130 is determined whether the switching frequency. The switch can be in-system or inter-system. The switch operation should be requested, the portable terminal 100 and subsystem 180 cellular, respectively.

System switch must be understood as switching to a different frequency range, maintaining the current standard for cellular communication systems, for example GSM 850 (U.S.) or GSM 900 (Europe) for GSM 1800 (Europe) and GSM 1900 (USA), respectively.

Interconnection switching it is necessary to understand how switching on a cellular communication system to a different standard, which usually includes the switching frequency range, for example, GSM 900 (Europe) WCDMA 2100 (Europe) or GSM 850 (USA) cdma2000 (USA). Interconnection switching can also be switching the assigned Protocol.

It should be noted that must be complied with requirements to implement as op is the radio system, and interconnection switch. For example, consider the availability of radio resources, the availability of networks PLMN supporting the required standard for cellular communication, the restrictions imposed by the provider, and the terms of use. Details on requirements can be found in the operations of the switch specified in the relevant cellular standards.

Also it should be noted that the switching Protocol with GSM system based on CDMA on request terminal 100 (and subsystem 180 cellular respectively) may require adaptation of the standard to allow such a switch. In particular, the GSM system does not set the request, allowing the mobile terminal to request the switching frequency range is in standby mode or active mode. This invention introduces such a switching operation, including provisions for requests and responses when turning on the portable terminal 100 with cellular connectivity. Thus, the proposed introduction of such switching protocols according to the embodiment of the present invention.

If the switch is successful, the operating sequence proceeds to operation S230. It should be noted that here also apply the above comments on the permit parallel operation.

In op the radio S140 output power subsystem 190 RFID reduced. The reduction in the output power may cause a reduced level of interference. In operation S150 set the noise level after decreasing the output power of the RFID subsystem. If the interference level is below the predetermined threshold, in operation S220 may be allowed further work. It should be noted that here also apply the above comments on the permit parallel operation. The threshold can be determined from considerations of priority (prioritization subsystem 180 cellular or subsystem 190 RFID 190), quality of service (bandwidth, RAM interrupt), types of communication (e.g., data packets, voice or streaming data), which is currently running subsystem 180 cellular, etc.

Otherwise, in operation S160 is checked whether time synchronized operation of the cellular communication subsystem or subsystem 190 RFID reader. In particular, on the basis of the working profile of the cellular communication subsystem (e.g., GSM, cdma2000 and WCDMA, respectively) and the parameters of the RFID subsystem is determined whether or not time synchronized operation of RFID in coordination with the operation of mobile communication (and in the standby mode and in active mode).

The synchronization time depends on several the occupational groups, which mainly include the mode of operation of the subsystem 180 cellular (standby/active mode), and, more specifically, when the active mode of operation, to determine whether the communication mode synchronization time. Professionals need to understand that the definition is also possible to synchronize the time or not, requires a more careful consideration of the various cellular standards listed above. Details will be shown in the following operating sequence described with reference to fig.4b.

In operation S170 working with time-synchronization can be enabled or disabled in accordance with the result of the verification operation S160. During prohibition, the working sequence proceeds to operation S210, where as an example, the user is informed of the unavailability of parallel and synchronized in time, respectively. Otherwise, the working sequence continues with operation S180, where the determined mode of operation of the cellular communication subsystem, and on the basis of this work, the sequence proceeds to operation S190 or S200 for the implementation of synchronized time in the standby mode, as well as in the active mode of the cellular communication subsystem. Details about the cyclic operation (S190) in standby and cyclic operation (S200) in the active mode is described with reference to IGS and 4d, respectively.

In operation S230, which follows the cyclic operation (190) in standby and cyclic operation (S200) in the active mode can be selectively repeated for time synchronized. If repetition is desirable, the operating sequence returns to operation S160. Selective repetition can be useful due to changes in operating mode and/or the communication mode of the cellular communication subsystem. More specific details will become apparent from the following description.

On fig.4b more shows check on the possibility of working with time-synchronization in accordance with a variant implementation of the present invention. In addition, a link to a details regarding the various cellular standards.

In operation S240 determines the operation mode of the cellular communication subsystem. The operation mode can be standby/idle or active mode. In operation S245, the working sequence goes to the next step depending on the particular mode of operation of the cellular communication subsystem.

If the operation mode is the standby mode, to synchronize the time allowed in accordance with the operation S295. The verification operation is complete.

Below will give you an insight regarding the operation of the cellular communication subsystem, to whom she is in standby/idle. Will also link to the above cellular standards.

GSM, GSM/GPRS, GSM/EDGE:

When using GSM, GSM/GPRS, GSM/EDGE cellular system uses parallel access with time division (TDMA) (in addition to the parallel access separation by frequency FDMA) for the distribution of voice and data between different mobile terminals within the cell and/or between neighboring cells. Therefore, essentially all transactions are divided into time intervals with strict synchronization, i.e. with a strictly defined start and end time of transmission of the data packet. Thus defined time frames with intervals. The time intervals for selection are assigned to one or more mobile terminals and channels. As a result, each mobile terminal has its own set intervals, within which it is possible to transfer and/or reception.

Typically, the cellular communication subsystem does not transmit data or voice communication in standby mode, except for communications relating to the challenges and measurements.

In the standby mode terminal that supports GSM/EDGE, for example, listens to a shared control channel (SSN) for the detection of possible calls performed by the radio access network (RAN)base station (BS), node, etc. Listening SSN also is her frequency and timing of the cellular communication subsystem. SSN is received and decoded in accordance with a pre-established period of DRX (discontinuous reception), i.e. from one of the two to one of the nine 51 multiquadric (interval of approximately 0.5-2). Usually the interval SSN approximately 2 seconds. In addition, every time when listening to your calls are monitored at least seven neighboring cells. The terminal in idle mode is not transmitting anything before the emergence of the need. Such a need may be the beginning of a call corresponding to the outgoing call from a user response to the request for connection (shown as message call)corresponding to the incoming call by the mobile station, a periodic change of location, etc. In the case when no services are, in practice, the update location is the only active task that requires data transmission subsystem of the mobile communication portable terminal. Therefore, as a rule, in the standby mode, the terminals supporting GSM/EDGE listen SSN within 2-4 intervals for two seconds and perform a measurement of received signal levels for adjacent cells terrestrial public mobile (PLMN), i.e. the base station (BS) of a neighboring cell. All other operations are rare and therefore the resolution is their activity RFID in this case mainly determines the reception SSN.

Similar considerations apply to systems of GSM and GSM/GPRS in standby mode. As a result, the periods of inactivity of the cellular communication subsystem, during which you can connect RFID in the range of ultra-high frequencies. The periods of activity of the cellular communication subsystem GSM, GSM/GPRS or GSM/EDGE in the standby mode and, therefore, periods of inactivity are clearly defined.

WCDMA and CDMA (cdma2000):

Cdma2000 and WCDMA (wideband multiple access, code-division multiplexing, such as UMTS) as a way of collective access uses CDMA technology (multiple access, code-division multiplexing). The basis of CDMA is formed modulated signals with spread spectrum. Typically, the modulated signal is spread spectrum in nature is continuous and therefore the solution of the planning problem is different from the above cases, GSM, GSM/GPRS or GSM/EDGE.

During the standby mode terminal supporting cdma2000 listens to the channel of the Forward Pilot Channel (F-PCH) of his own and neighboring cells to detect messages sent to him, and to measure the strength of the control signal to determine whether to switch the standby mode. In addition, the terminal support cdma2000 listen to the channel Paging Channel (RDA) for the detection of possible incoming calls. Listen to your own interval of time time cycle time interval F-PCH length 2 SCI(SCI index cycle time interval) in units of 1.28 with takes approximately 100 MS (for example, a typical SCI=1 (2SCI=2) in the USA and SCI=2 (2SCI-4) in Japan). If the terrestrial network public mobile (PLMN) supports channel indicators Forward Quick Paging Channel (F-QPCH), the terminal with support for cdma2000 approximately 20 MS listens indicator F-QPCH, what is being done to listening separated by time intervals of the search call, which takes place approximately once per minute.

Standby IS-2000 Release And is slightly different from the one described above. Channel (F-BCCH (Forward Broadcast Control Channel)containing service message is decoded only in the case when access is required or when discovered by a new control signal indicating the capability of switching the standby mode. Channel (F-CCCH (Forward Common Control Channel, transmitting messages of a call on cell terminal, decode, when the channel (F-QPCH detected call.

When WCDMA is in the standby mode, the terminal with support for WCDMA attached to the cell, listens for messages system information, calls and notifications and performs regular measurements to search for the strongest signal of the base station (BS), as well as neighboring base stations (BS, nodes etc). The signal levels of a serving cell is measured at least in each cycle DRX (discontinuous reception) (from 0.64 to 5,12 is in standby mode). Also take measurements vnutricostnykh cells (measuring cycle from 1,28 to 5,12 with standby) and measurement mestastatic cells (each frequency for each cycle (Ncarrier-1)*1.28 s to (Ncarrier-1)*5.12 (C). Challenges include listening to the transport channels VSN and DCL, send in the channels of the P-SSRN (Primary Common Control Physical Channel) and S-CCPCH (Secondary Common Control Physical Channel), respectively. The terminal supports WCDMA also may use discontinuous reception (DRX) in idle mode and in this case, this terminal is only required to observe one indicator call from the channel Paging Indicator Channel (PICH). This happens once every DRX cycle. Of course, if the terminal starts a call (the call is coming from a terminal, the message is sent on the channel RACH (random access channel).

As a result, the periods of inactivity of the cellular communication subsystem, during which you can connect RFID in the range of ultra-high frequencies. In addition, the periods of activity of the cellular communication subsystem CDMA or WCDMA in the standby mode and, therefore, periods of inactivity are clearly defined.

Again referring to fig.4b, if the operation mode is active, to allow or ban synchronized in time requires a more detailed consideration of the standards of different cellular systems.

In about the erali S250 checks, does the subsystem cellular GSM, GSM/GPRS or GSM/EDGE, and if the verification is determined whether the location of the time interval synchronized in time.

As mentioned above, the cellular system with support for GSM, GSM/GPRS, GSM/EDGE uses parallel access with time division (TDMA) (in addition to the parallel access separation by frequency FDMA) for the distribution of voice and data between different mobile terminals within the cell and/or between neighboring cells. Therefore, essentially all transactions are divided into time intervals with strict synchronization, i.e. with a strictly defined start and end time of transmission of the data packet. This means that to allow or ban synchronized in time it is necessary to consider the availability of time intervals during which the system is inactive (i.e. inactive in the sense that one or more time intervals are not designed to transmit and receive data).

During a voice call or data transmission GPRS cellular communication subsystem is in active mode during the ascending and descending intervals of a TDMA frame (concurrent access with time division), which are designed for ascending and descending data. the La subsystems of cellular communication in both directions (ascending and descending) can be assigned more than one time interval. In addition, the cellular communication subsystem monitors the neighboring base stations (BS, node and so on), one base station during one TDMA frame (containing eight time slots). In accordance with the idea of the present invention subsystem RFID readers, combined with the subsystem GSM, GSM/GPRS or GSM/EDGE, must prevent the transmission carrier wave during active periods of operation of the cellular communication subsystem, as indicated above.

In accordance with a variant implementation of the present invention to figa shows a sample activity chart subsystem GSM/EDGE mode time synchronization subsystem RFID. In particular, the activity chart represent the active state in dual mode transmission (DTM) GSM/EDGE to clarify the relative position of the periods of activity of both subsystems. Figa shows the location of two time intervals (time intervals RX #1 and #2) downlink (RX) and one time interval (the time interval TX #2) for uplink (TX). In addition, once per TDMA frame (containing the interval of time from #0 to #7) based on the activity measurement is the observation of one of the neighboring base stations (BS, node etc). As an example, the operation is placed between measurement intervals #4 and #5 with the structure of the TDMA uplink. Required the notice, the location of the time intervals ascending and descending links are for example; for the upward and/or downward communication can be used, and other time intervals. In accordance with upward and downward communication and operation of the measurement can be identified two periods of inactivity in each TDMA frame; i.e. the first period of inactivity (essentially involving the time intervals TX #0 and #1), located between the downward and upward communication, and the second period of inactivity (essentially comprising the time interval TX #3 and part of the time interval TX #4)located between uplink and operation of measurement. These periods of inactivity of the cellular communication subsystem can be applied to the subsystem of the RFID reader, as in the example shown in figa in the form of open operation of the RFID reader (continuous oscillation).

Based figa professionals need to understand that depending on the location of the time slots in TDMA systems in the framework of the time intervals may be one or more periods of inactivity. These periods of inactivity of the cellular communication subsystem can be used to operate the RFID subsystem without the risk of interference caused by the cellular communication subsystem and the RFID subsystem.

It should also be noted that the location time is i.i.d. intervals for upward and downward communication is requested by the subsystem of the mobile communication terminal. As a result, to obtain periods of inactivity, which allow time synchronized operation of the two subsystems may be requested meets the requirements of the position of the time interval. The request of the relevant provisions of the time intervals may be accompanied by a decrease in data transfer speed of ascending and/or descending line of the cellular communication subsystem, but provides optimal performance with time alignment.

As a result, in terms of time frame work of the two subsystems sync time can be allowed or denied. If the working sequence continues with operation S295, whereas in the case of prohibition, the working sequence proceeds to the operation S290. In operation S290 time synchronized operation is rejected.

In operation S260, it is checked whether the subsystem WCDMA cellular communication, and in the case of the verification in operation S265 is determined whether the communication mode to work with time alignment.

As mentioned above, WCDMA (wideband multiple access, code-division multiplexing, such as UMTS) as a way of collective access uses CDMA technology (multiple access, code-division multiplexing). The basis of CDMA is formed is modulirovannye signals with spread spectrum. Typically, the modulated signal is spread spectrum in nature is continuous and therefore the solution of the planning problem is different from the above cases, GSM, GSM/GPRS or GSM/EDGE.

To implement an apparent parallel operation of the RFID reader during a voice call or data transmission in the active mode WCDMA cellular communication subsystem can use the compression mode. Here it is necessary to make reference to fig.5b, which shows an example of temporal patterns of communication in the compression mode. Although WCDMA uses CDMA technology (multiple access, code-division multiplexing) as a way of collective access to separate different channels at the physical level also applies temporal multiplexing. The structure of temporal multiplexing is usually based on the structure of time frames, each time frame contains 15 time intervals.

In the compression mode (or the mode separation intervals) base station (BS, node etc)connects to the cellular communication subsystem, sets interruptions in transmission for both downward and upward communication that is made for holding subsystem of the mobile communication terminal measurements between cells. Such measurements between cells is required for megastates switching subsystem of the mobile communication terminal and executed on p the EIT WCDMA carrier frequencies. To perform these measurements can be assigned to multiple time intervals. These designated intervals can be in the middle of one frame or can be divided into two frames.

To ensure operation of the RFID reader, one, several, or all measurements, the implementation of which is expected by the terminal (and, accordingly, its subsystem)are ignored to ensure a sufficient amount of time of inactivity, which can be used for RFID subsystem. The length of the interruptions in transmission (TGL) and their distribution over time are determined by the cellular radio access network (RAN). Compressed frames are simultaneous in time and in upward and downward communication. The length of the interruptions in transmission (TGL) is 3, 4, 7, 10 and 14 time intervals, i.e. from 2 to 9.3 MS.

The work of compression can be achieved by various methods, including reducing the coefficient of expansion (for example, 2:1), gouging bits (for example, by reducing the number of transmitted information, or changing the planning in the upper levels (for example, if necessary, a smaller number of time intervals for communication).

Referring to fig.5b (1), in a compressed frame intervals from #Nfirstto #Nlastspecifies the length of the break in the transmission, not used for data transmission. As shown in the example, the instantaneous power re the ACI in the compressed frame is increased to prevent the effect of reducing the coefficient of expansion on service quality (bit error rate, the frequency of occurrence of erroneous frames and so on). The power increase depends on ways of reducing the transmission time described above. Compressed frames are specified by the network. Typically, compressed frames in the compression mode can occur periodically or requested on demand. The rate and type of compressed frames varies and depends on environmental conditions and measurement requirements.

On fig.5b (2)-(4) shows the different patterns of the frame for upward and downward compressed frames. Referring, in particular, on the structure downstream of the compressed frame has two different types of frame structure. In type a (see fig.5b (3)) maximized the length of the break in transmission (TGL), whereas type b is optimized for power control. Frame structure type a and b is set to the upper levels, regardless of the format of the descending interval of type a or B. In frame structure type a in the interval of the transmission is transmitted to the control field of the last time interval. During the pause, a break in the transmission, the transmission is disabled. In frame structure type In the interruption of transmission is transmitted field TRS first time interval and the control field of the last time interval. During the rest of the interruption of transmission transmission is disabled.

Although the transmission mode of the compression length of interruptions in transmission (TGL) and their distribution in time determined by the tsya cellular radio access network (RAN), professionals need to understand that there can be implemented a variety of solutions to meet the communication control in the compression mode and set its properties (length, synchronization) using the subsystem mobile communication terminal. As a result, to obtain periods of inactivity, which allow time synchronized operation of the two subsystems, the terminal may be requested communication mode compression. Originally organized by measuring operations are skipped. The communication request in the compression mode may be accompanied by a decrease in data transfer speed of ascending and/or descending line of the cellular communication subsystem, but provides optimal performance with time alignment.

In the result, depending on the mode of communication work both subsystems sync time can be allowed or denied. If the working sequence continues with operation S295, whereas in the case of prohibition, the working sequence proceeds to the operation S290. In operation S290 time synchronized operation is rejected.

In operation S270, it is checked whether the subsystem cellular communication cdma2000, and in the case of the verification in operation S275 is determined whether the communication mode to work with time alignment.

As mentioned above, cdma2000 as the FPIC of the BA community access also uses CDMA technology (multiple access, code-division multiplexing). The basis of CDMA is formed modulated signals with spread spectrum. Usually modulated signal with the spread spectrum is inherently continuous, and therefore the solution of the planning problem is different from the above cases, GSM, GSM/GPRS or GSM/EDGE.

The operation of the terminal with support for cdma2000 in the active mode is usually continuous. The only exception is the mode discontinuous transmission (DTX). In discontinuous transmission mode (DTX) activity subsystem mobile communication terminal in a return line (i.e. in the upward direction) is only 50% of the nominal value. A similar mode of intermittent transmission is available for a direct connection (i.e. the downward direction). These breaks in transmission and reception in the upward and downward directions can be used to ensure operation of RFID systems.

However, it should be noted that the discontinuous transmission (DTX) is valid only in channels F-DCCH Forward Dedicated Control Channel in cdma2000) and R-DCCH Reverse Dedicated Control Channel), but voice data on these channels are not transferable.

Mode discontinuous transmission (DTX) as necessary may be requested by the terminal with support for cdma2000. The connection request mode discontinuous transmission (DTX) may be accompanied by a decrease in data transfer speed of ascending and/or descending line of the cellular communication subsystem, but provides optimal RA the GTC sync time.

In the result, depending on the availability and applicability of mode discontinuous transmission (DTX) operation of the two subsystems sync time can be allowed or denied. If the working sequence continues with operation S295, whereas in the case of prohibition, the working sequence proceeds to the operation S290. In operation S290 time synchronized operation is rejected.

Professionals need to understand that the idea of the present invention described in the example above subsystems cellular-based TDMA and subsystems cellular communications based on CDMA, also applicable to other cellular subsystems based on TDMA and CDMA, respectively. This means that the coordination subsystem RFID reader in accordance with a variant implementation of the present invention should not be limited to the above-described subsystems provider.

Typically, in wireless communication systems to reduce power consumption of the corresponding wireless communication subsystem provides periods of inactivity. The metering in particular relates to a portable terminal (such as terminal 100), which are supplied with the battery charger and/or batteries with limited energy. During periods of inactivity subsystem of a wireless communication signal is to be switched off or at least transferred to the power saving mode.

Due to the above restrictions and requirements necessary to ensure consistent operation of the cellular communication subsystem and subsystem RFID reader, reference should be made to figs, which schematically shows the operating sequence of the cyclic work procedures in idle/standby, the corresponding implementation variant of the present invention. Cyclic procedure idle/standby / sleep is part of the total operating sequence described with reference to figa.

Usually when in idle/standby subsystem of the mobile communication terminal listens for messages call coming from a PLMN and a base station (BS, node etc), to determine whether a connection link. Thus, when the cellular terminal with RFID enabled or enabled RFID reader, in coordination with the timing of the starts in accordance with the following cycle control relevant implementation variant of the present invention.

In operation S300 when connecting the cellular communication subsystem to a radio access network (RAN) or base station (BS, node etc) or later in idle/standby cellular communication subsystem receives one or more messages with system information, which includes information about the group search is on call, to which is attributed the cellular communication subsystem, and, consequently, the distribution of search calls by time.

In operation S310 when connecting the cellular communication subsystem to a radio access network (RAN) or base station (BS, node etc) or later in idle/standby cellular communication subsystem also receives information about the position in time, concerning measurements of the potential level of the signals of the neighboring base stations.

In operation S320, when receiving information about the moments of search challenges and moments of measurement this information is passed to the block scheduling. On the basis of the position information in time moments of challenges and moments of the measurement unit planning is synchronized with respect to the location of the search calls and measurements in time so that they become known the exact moments of challenges and dimensions, as well as their length. As a result, the block scheduling receives information about the exact position in time periods of activity and inactivity of the cellular communication subsystem, but rather about the time of the beginning and end of periods of activity and inactivity of the cellular communication subsystem.

In operation S330 makes a further configuration of block scheduling and/or subsystems of the RFID reader. Cm. the description below.

In operation S340 may be running subsystem of the RFID reader. Running can be caused by receiving input from a user or terminal, or by the triggering signal, generated by running the terminal application program. When the instruction to start working sequence continues with operation S350, otherwise it goes to the operation S360.

In operation S350 block scheduling synchronizes the operation of the RFID reader so that it was carried out during periods of inactivity of the cellular communication subsystem. Periods of inactivity are set on the basis of information about the moments of search calls, as well as information about the moments of the measurements (see operation S320).

In operation S360, it is checked whether the new information that contains information about planning synchronized operation (i.e. information about the moments of search calls or points of measurement), for example, from the system messages received by the subsystem of the mobile communication terminal of the radio access network (RAN). In case of availability of new information operating sequence returns to operation S300, otherwise it goes to the operation S370.

In operation S370 time synchronized operation subsystem of the RFID reader can be repeated many times. The working sequence can return to operations S340 or S350, when, for example, the subsystem radio frequency identification is divided into several separate operations subsystem radio frequency identification.

The need is on notice the mode of operation of the cellular communication subsystem may vary. This means that when indicating a radio access network (for example, message call, the setup message for the incoming call and so on) or in response to a user request (for example, a message about installing an outgoing call) subsystem provider may switch from idle/standby to active mode. In case of changing the operation mode to the active mode operating sequence may return to operation S160 described in relation figa for validation time synchronized operation in active mode.

Due to the above restrictions and requirements necessary to ensure consistent operation of the cellular communication subsystem and subsystem RFID readers, you must also make reference to fig.4d, which schematically shows the operating sequence of an iterative process when operating in the active mode, the corresponding implementation variant of the present invention. Cyclic procedure active mode is part of the total operating sequence described with reference to figa.

In the active mode (i.e. during a voice call or data transmission) or in modes requiring the same activity as in the active mode (e.g., standby GSM/GPRS), R is the bot subsystem radio frequency identification should be coordinated so to prevent overlap with the activity of the cellular communication subsystem. In accordance with the embodiment of the invention the active mode of operation includes the following operations.

Operations S400 and S410 get information about the standard and the communication mode, and the distribution of activity over time. In particular, when the terminal switches to the active (or similar) mode or later when it is already in active mode, is determined by the standard and the communication mode (GSM, GSM/GPRS, GSM/EDGE, the compression mode of WCDMA, cdma2000, the DTX mode and so on) and information about the position of the activity in time of the cellular communication subsystem. If it is recognised by the subsystem cellular communication mode is GSM, GSM/GPRS, GSM/EDGE, synchronization TGL in the compression mode WCDMA or synchronization discontinuous transmission (DTX) in cdma2000, the information about the position in time of activity mainly includes data on the distribution of activity by time intervals. Here it is necessary to make reference to the discussion above with reference to fig.4b.

In operation S420, when receiving the position information at the time it enters the block scheduling. On the basis of the position information in time moments search challenges and moments of the measurement block scheduling is synchronized in such a way that they become known periods of inactivity and their length. As a result, the block planning the Oia receives information about the exact position in time periods of activity and inactivity of the cellular communication subsystem, to be exact about the time of the beginning and end of periods of activity and inactivity of the cellular communication subsystem.

In operation S430 makes a further configuration of block scheduling and/or subsystems of the RFID reader. Cm. the description below.

In operation S440 can be run in a subsystem of the RFID reader. The start may be caused by receiving input from a user or terminal, or by the triggering signal generated by running the terminal application program. When the instruction to start working sequence continues with operation S450, otherwise, it proceeds to operation S460.

In operation S450 block scheduling synchronizes the operation of the RFID reader so that it was carried out during periods of inactivity of the cellular communication subsystem. Periods of inactivity are set on the basis of the position information in time (see operation S420).

In operation S460, it is checked whether the new information that contains information about planning synchronized operation (i.e. information about the moments of search calls or points of measurement), for example, from the system messages received by the subsystem of the mobile communication terminal of the radio access network (RAN). In case of availability of new information operating sequence returns to operation S300, otherwise it can go is to the operation S470.

In operation S470 time synchronized operation subsystem of the RFID reader can be repeated many times. The working sequence may return to operation S440 or S450, when, for example, the subsystem radio frequency identification is divided into several separate operations subsystem radio frequency identification.

It should be noted that the operation mode of the cellular communication subsystem may vary. This means that when indicating a radio access network or in response to a user request, the cellular communication subsystem can switch from idle/standby to active mode. In case of changing the operation mode to the idle/standby operating sequence may return to operation S160 described relative to figa for validation synchronized time idle/standby / sleep or can go directly to operation S300 described in relation figs.

The above description of the scheduling algorithm starts from the requirements that must be followed to implement the principle of time synchronization of the two subsystems. Next will be described an optimized operation of the subsystem to the RFID reader. Optimization best to implement effective operation subsystem of the RFID reader during periods of inactivity, during which valid its functionality is the testing. In accordance with the embodiment of the present invention provides a configuration interface and control, which is preferably an application program interface (API)that allows you to configure and manage the operation subsystem of the RFID reader. The configuration interface and control subsystem RFID can be implemented through the exchange of data and commands via the data interface subsystem RFID reader. It should be noted that the above special connector digital input/output trigger signal, which can be used to synchronize the operation subsystem of the RFID reader may be implemented as a separate signal input to the logical watchdog subsystem RFID reader, or, alternatively, the trigger signal can be a logic watchdog circuit subsystem RFID reader via its data interface. A separate connector trigger signal may be preferred for reasons of guarantee synchronization with the trigger signal.

Configurability subsystem RFID preferably controlled by block scheduling, which starts the operation of the subsystem to the RFID reader. Here we need to make a link back to operations S330 and S430 loops mode is Zidane and active mode, respectively.

In General, the planning mechanism, described in detail above, to determine the periods of activity and inactivity of the cellular communication subsystem uses information about the position in time. This information is used so that the synchronization unit prevents the operation of the subsystem of the RFID reader during operation of the cellular communication subsystem, i.e. when the cellular communication subsystem, for example, receives messages call, performs the measurement, sends or receives a data packet or sends a data packet random access. Among other things, block scheduling is arranged to set the maximum duration of a single radio frequency radiation so that it does not exceed the period of inactivity of the cellular communication subsystem and to start the operation subsystem of the RFID reader in accordance with the expected beginning of a period of inactivity. To run synchronized RF activity subsystem RFID reader block scheduling can use a special connector digital input/output trigger signal.

On figa shows an example time sequence of activity based on the activity chart, GSM/EDGE DTM on figa in accordance with the variant of realization of the present invention. For example, the first period ΔaIthe second period of activity and Δ aIIfirst inactivity period ΔnIand the second period of inactivity ΔnII. In accordance with periods of inactivity periods of the RF signal subsystem of the RFID reader is listed as "open radio frequency activity RFID reader (see legend to figa) and mean RF radiation from the antenna subsystem RFID reader in accordance with the power level of the signal, the requirements for accuracy and reliability.

Optimized time setting signal, triggering RF activity subsystem RFID reader, denoted as ΔIrepresents the duration of the transition to the operating mode ΔI. The transition to the operating mode ΔI- this is the time that you want the subsystem RFID reader to start the transmission of the radio frequency signal antenna from receipt of the trigger signal in accordance with the power level of the signal requirements for the accuracy and reliability of subsystem RFID reader. Among other things, the transition to the operating mode ΔIdue to the establishment of a scheme phase-locked loop (PLL), the warm-up of the microcontroller/logic circuits, the time for establishing a radio frequency interface and/or other inevitable processes before turning on RF activity.

It is also desirable to consider additional protective int is tearing Δ IIbetween the end of the period of activity of the cellular communication subsystem and the early radiation of the radio frequency signal subsystem of the RFID reader. When considering the time of transition to the operation mode ΔIand guard interval ΔIIthe signal that triggers the RFID subsystem must be installed as ΔIIIbefore the end of the period of activity of the cellular communication subsystem. For an arbitrary task reference point at the zero moment of time corresponding to the end of the activity period and the beginning of the period of inactivity of the cellular communication subsystem, the trigger signal must be assigned to a point in time TIIII<0. The radiation of the RF signal subsystem RFID occurs, respectively, at time TIIII<0, which is equal to the interval ΔII.

The optimal time to return trigger signal to its original state to stop RF activity subsystem RFID reader, denoted as ΔIIIrepresents the duration of the output from the operation mode ΔIII. Time out from the working mode ΔIII- this is the time that you want the subsystem RFID reader to stop transmission of the RF signal generated by the subsystem RFID reader, since the return of the trigger C is channel to its original state. Radio frequency radiation is terminated before the beginning of the activity of the cellular communication subsystem and, therefore, before time 0' and the end of the period ΔIII. In contrast to the time of transition to the operation mode ΔIin this case, is not required to ensure sufficient time to establish schemes phase-locked loop (PLL), radio frequency interface, etc. at the termination of the radio-frequency activity over time ΔIIIas the signal level, the accuracy and reliability of the RF signal is not important here up until the output stage is turned off and the RF radiation from the antenna of the RFID subsystem does not occur.

When considering the time you exit the operating mode ΔIIIthe return trigger signal to its original state, which terminates the operation of the RFID subsystem must be installed as ΔIIIbefore the end of the period of inactivity of the cellular communication subsystem. For an arbitrary task reference point at the zero moment of time corresponding to the end of the period of inactivity and the beginning of the period of activity of the cellular communication subsystem, the trigger signal must be assigned to a point in time TIII=-ΔIII<0'. Thus, the radiation of the RF signal is terminated in the time period ending before the reference point in time 0', resulting in predotvrashayetsya the cellular communication subsystem.

Professionals need to understand that the period of operation of the subsystem of the RFID reader can be optimized by setting the guard interval ΔIIand given the time to transition to the operation mode ΔIand the time of exit from the operating mode ΔIII. The transition to the operating mode ΔIand the time output from the operation mode ΔIIIusually are specific for the subsystem of the RFID reader.

Configuring and/or optimizing the operation subsystem of the RFID reader may take other parameters subsystem the RFID reader. Optimize and configure subsystem the RFID reader is advantageous for efficient use of periods of inactivity of the cellular communication subsystem and subsystem settings of the RFID reader in a specific duration and periods of inactivity. Customization and/or optimization may involve changing some of the settings subsystem RFID reader.

Static information

Block scheduling before and after radiofrequency activity subsystem RFID reader should be informed at least about the cycle of the standby subsystem RFID reader and the necessary time input and output of the operating mode. For block scheduling should be available information about the minimum, normal and maximum values, and the units of erenia parameters listed below. Usually this information is provided by the manufacturer of the subsystem of the RFID reader in the list of technical characteristics. Preferably, the information should be stored in the unit planning or the terminal, if necessary, block scheduling has gained access to it.

Semi-static information associated with standards

Among other things, block scheduling can retrieve and change (optional) the values of the following parameters that pertain to the duration of RF activity. Cm. the EPCglobal generation 2. Can be important the following parameters; they are described with reference to fig.6b-6d.

On fig.6b depicted envelopes on and off for the exciting RF signal. Here reference should be made to the above description of the time entry and exit from the working mode. The rise time Trand the fall time Tfdepicted on fig.6b, while at the same time the entrance to the operating mode ΔIand the time output from the operation mode ΔIII. However, it should be noted that fig.6b shown only the envelope of the RF signal detected by the radio frequency subsystem interface the RFID reader. The rise time Trand the fall time Tfmust be in the range from 1 µs to 500 µs (because after logging in to the operating mode for up to the achievements of the excitation signal of a constant level (100% power level) required setup time T s). The settling time Tsshould be in the range from 1 MS to 1500 MS. At the entrance to the operating mode after reaching 10% of the power level of the envelope must monotonically increase up to the limit ripple MI(95% of capacity). When you exit the operating mode envelope must monotonically decrease with the decline of between 90% of the power level and at least the capacity limit of Ms(1% of power level). The power levels MI(negative emissions, max%) and Mh(exceeding maximum 105%) define the boundaries of the power level for the radio frequency envelope.

It should be noted that in some regions attempt a carrier is detected before the beginning of communication RFID. For example, with regard to the requirements of ETSI (European telecommunications standards Institute), which are in particular taken into account in Europe, the use of RFID, for example, in the frequency range from 865 MHz to 868 MHz implies the so-called operation "listen before dialogue" (LBT). Operation "listen before dialogue" (LBT) is used to determine free or busy a particular frequency sub-band, designed for RFID. This definition prevents conflicts due in one RF sub-band. For example, in accordance with the technical requirements ETSI directly before each session the ligature subsystem RFID reader, it must be switched to the so-called listening mode, in which there is one or more predetermined frequency bands. Observation takes place in a special listening periods, which also play a role periods carrier detect TLSB. Periods carrier detect TLSB(for example, in accordance with the requirements of ETSI) must include a constant time interval, for example 5 MS, and a variable time interval in the range from 0 MS to r MS, in particular from 0 MS to 5 MS. If the observed subrange free (not busy), the variable time interval is set to 0 MS. In addition, technical requirements ETSI define a clear minimum threshold levels, which set the sensitivity characteristics. These minimum levels are dependent on the power level of the transmission intended for use in RFID communication. It should be noted that when setting up and/or optimize subsystems reader radio frequency identification you should also consider a variable period carrier detect TLSB(equal variable period of time ranging from 5 MS to 10 MS).

On figs shows the encoding of data on the physical level. In particular, depicts the envelope of the RF signal for symbols "0" and "1"are used to encode data. Tariis the reference lie is authorized interval for alarm "requester-label" (i.e., alarm subsystem RFID toward the defendant). It represents the duration of the symbol "0", which means, for example, the number 0 in binary code. The parameter x is in the range from 0.5 to 1.0) specifies the duration of the symbol "1" on the basis of the reference time interval Tarii.e. the parameter x specifies the relative reference time interval for alarm "requester-label" and denotes the length of the symbol "1" for the duration of the symbol "0", where the symbol "1" represents, for example, the number 1 in binary code. High values mean the transmitted continuous wave which has previously been described as radio frequency request signal or excitation. Low values indicate weak continuous wave. The modulation depth, rise time, fall time and pulse width are set. Valid values of the above parameters depend on the modulation type used to communicate with the defendant, including amplitude shift keying with two side bands (DBS-ASK)amplitude shift keying with a single side-band (SSB-ASK)amplitude shift keying with phase reversal (PR-ASK), which must be maintained by defendants. In accordance with the modulation type of the reference time interval Tarican take values of 6.25 μs (DSB-ASK), 12,5 ISS for SSB-ASK) and 25 µs (PR-ASK). In addition, minimalist guest the other modulation depth should be 80%, normal is 90%and the maximum is 100%. The rise time of the RF envelope (10%→90%) (90%→10%) should be in the range from 0 to 0.33*Tari. The width of the RF pulse should be between MAX(0.265*Tari, 2) to 0.525*Tari.

The width of the RF pulse, the rise time of the RF envelope, the fall time of the RF envelope are specific to the subsystem of the RFID reader. These settings are not changed and is only available for reading. The carrier frequency can be selected in the frequency range from 860 MHz to 960 MHz. However, it is necessary to take into account local norms, and the carrier frequency is additionally determined on the basis of local RF conditions.

On fig.6d shows an example of timing of communication from the reader to the Respondent (R→T) and from the defendant to the reader (T→R). Communication from the reader to the Respondent (R→T) based on a continuous wave, which corresponds to the above-mentioned RF request signal/excitation. Continuous wave continuously radiates subsystem RFID reader in order to ensure the activation of the defendant RFID. To gain access to the information recorded in the Respondent RFID, provides a set of commands that can be modulated continuous wave.

In more detail, subsystem, the RFID reader has the ability to send information and one or more defendants through RFID modulation RF envelope (continuous wave, wireless polling signal or excitation) method amplitude manipulation with two side bands (DBS-ASK)amplitude manipulation with a single side-band (SSB-ASK), amplitude manipulation phase reversal (PR-ASK) and using the encoding format of the interval between pulses (PIE). The defendants RFID designed to provide the energy necessary for work of the same modulated carrier radio frequency.

In addition, the subsystem RFID reader is designed to receive information from the Respondent RFID tag by transmitting a non-modulated carrier radio frequency (continuous wave, radio frequency polling signal or excitation) and listen to the reflected return response. The defendants RFID report information by modulating the amplitude or phase of the reflected radio frequency carrier. The encoding format selected in response to commands subsystem RFID reader is, for example, frequency modulation (FMO) or modulation of the Miller subcarrier frequency. Line of communication between the subsystem of the RFID reader and the defendant RFID is half-duplex, which means that the defendant RFID does not require demodulation of the commands subsystem RFID in backscattering. The defendant RFID should not issue a response using the full-duplex communication.

For example shows the commands select, request and confirm. the before issuing commands to the defendant RFID reader RFID should at least emit a continuous wave eight times longer than the duration of the symbol RT calcalibration "requester-label", where RTcalequal to the length of the data characters "0" and "1" (i.e., RTcalis in the time range from 2.5*Tarito 3.0*Tari).

When receiving the defendant RFID selection commands it receives the instruction to respond to the next command. The first query command allows the defendant RFID instructions to issue in response to the 16-bit random or pseudo-random number (RN16). When receiving from the RFID reader command confirmation, informing the defendant of RFID that 16-bit random or pseudo-random number (RN) correctly, the defendant, for example, transmits the electronic product code (EPC), the values of Protocol control (PC) and cyclic redundant code (CRC). The RFID reader can scan based on the cyclic redundant code and, if successful, and unsuccessful reception of the response. Thus, the RFID reader may then send a further command or the command "confirm". The last command is transmitted to the Respondent RFID that payload previous answer was accepted with an error.

As shown in fig.6d, you should consider several waiting periods, such as waiting periods between the transmission of consecutive commands RFID (T4), between the end of the command the RFID reader and the beginning of the response of the Respondent RFID(T 1and, Vice versa, between the end of the response of the Respondent RFID and the beginning of the next command of the RFID reader (T2).

Commands and command sequences are used to obtain information from respondents RFID and/or changes in the information recorded in them.

On file shows the principles of a sequence of commands RFID and condition of the defendant RFID. The RFID communication in accordance with the EPCglobal standard is intended for connection with the family of the defendants; here, in particular, is the relationship with the individual defendant.

Subsystem RFID readers can manage the family defendants RFID on the basis of three basic processes, which in turn include one or more special teams. Then without touching details brief description of the underlying processes.

To select the family defendants RFID, which is scheduled communication, particularly communication to manage inventory and access, there is a selection process. The select command can be used to select individual family defendants RFID on custom criteria. This operation can be considered as an analogy of the selection of one or more records from the database.

To identify the respondents RFID, i.e. to identify the defendants RFID in the family, selected using the selection commands provides a process "inventory". Subsystem RFID readers can start the inventory cycle, i.e. one or more commands inventory cycles and the response of the Respondent, by sending a query command to one of the four sessions. To respond may have one or more of the defendants RFID. The subsystem of the RFID reader can detect the response of the individual defendants RFID and request PC, EPC, and CRC detected from the defendant RFID. The inventory process can include multiple commands inventory. The inventory cycle occurs in one session at a time.

The process is designed to communicate with the defendant RFID, where the communication mainly involves reading and/or writing information to the defendant RFID. Before the implementation of the process of access each Respondent RFID should get a unique label. The process may include commands multiple access, some of which use encoding line reader-responder based on one-time cryptographic key.

In more detail, the selection process uses a single select command, which is a subsystem of the RFID reader can then use to select individual family defendants RFID by user-specified criteria, allowing separation of the defendants on the basis of the functions Union, intersection and negation. Subsystem RFD readers can perform joins and intersections serving the serial commands of the selection.

The command set of the inventory process includes commands query, QueryAdjust (configure request), QueryRep (answer on request), ACK (acknowledgement) and NAK (not acknowledge). The Query runs the inventory cycle and decides, what the defendants RFID participate in the inventory cycle, where "inventory cycle" is defined as the period between successive commands Query. The Query includes a parameter calculating time intervals Q, which is used for arbitrary rollback in the schema of conflict prevention. Parameter counting time intervals Q configurable and customizable subsystem of the RFID reader. When receiving a Query, each of the participating defendants RFID should choose an arbitrary value from 0 to 2Q1 and record this value in your counter intervals. The defendants RFID, which selects zero, must go to the state feedback and immediately respond. The defendants RFID who choose a non-zero value, must go to the arbitration state and wait commands QueryAdjust or QueryRep. If you responded to one defendant RFID, upon filing of the answer by the algorithm request/response provides the defendant for RFID backscatter 16-bit random or pseudo-random number (RN16). Subsystem RFID reader provides evidence of the defendant RFID using the validate command (ASC), including such W is RN16. Then corroborated the defendant RFID enters the confirmed state and transmits the inverse scattering its PC, EPC, and CRC. Then the subsystem RFID reader can use commands QueryAdjust or QueryRep that cause the transition identified the defendant RFID ready and actually make another Respondent RFID to start a dialogue request-response subsystem RFID readers, beginning again the above sequence of request. If the defendant RFID can't take command ASC or accepts it with invalid RN16, then he must return to the arbitrage condition.

The defendants RFID in the arbitration condition or state response, which take the QueryAdjust command, first set Q (incrementer, decrementer or leaving it unchanged), then choose an arbitrary value in the range 0 to 2Q1 and write it in their counters intervals of time. The defendants RFID, which selects zero, must go to the state feedback and immediately respond. The defendants RFID who choose a non-zero value, must go to the arbitration state and wait commands QueryAdjust or QueryRep. RFID in the arbitration state decrements its count of time intervals each time when receiving a QueryRep command and when the counter reaches zero go into the state response and the inverse scattering TRANS is give RN16.

Summing up, during the RF cycle activity subsystem of the first RFID reader in accordance with the selection process selects the defendants RFID, then the subsystem RFID reader may continue to perform the inventory process and at the end of the process.

Professionals need to understand that in the preferred embodiment, block scheduling must be able to obtain one or more values of the above parameters and, if necessary, modify one or more of these values. Block scheduling receives and/or changes the values of the parameters using the configuration interface and the settings described above.

Block scheduling can at least get to change the values of those parameters that are important for synchronization of radio frequency activity subsystem RFID and cellular communication subsystem. The activity of the cellular communication subsystem is given precedence over the activity of a subsystem of the RFID reader, as its activity is usually managed by the radio access network (RAN), and the possible impact of the terminal is very limited.

Accordingly, the available periods of time, allowing the RFID communication, and their frequency are identified by periods of activity and inactivity of the cellular communication subsystem. This means that the maximum duration of an individual who nepreryvnyh waves and the waiting time between two successive continuous waves known (see fig.6d). These maximum periods of time may be the communication between RFID reader subsystem and the Respondent (s), see fig.6d and 6E. The duration required for the intended procedure RFID communication includes one or more commands and responses that can be determined or estimated based on the sequence of commands and responses, as well as the above requirements are distributed over time. The duration required for the intended procedure RFID communication can be optimized to match with the maximum duration of a single continuous wave by setting one or more parameters of the position in time that includes the reference time intervalTarithe relative value of the reference time interval x, the width of the RF pulse, the carrier frequency and parameter counting time intervals Q. settings must be made at least one or more permissible ranges. When installing digital (input/output) trigger signal, which is essentially a Boolean parameter that starts the selection process.

In addition, the power level subsystem, the RFID reader may be configured with appropriate installation command the power delivered by the unit planning subsystem reader RID. Also the number of defendants RFID from which you are reading, can be set or limited.

It should be noted that the periods of inactivity of the cellular communication subsystem can be quite short relative to the duration required for RFID communication, as in the example described above based on the EPCglobal standard. The speed of transmission from the reader to the defendant is in the range from 26,7 kbit/s to 128 kbit/s depending on the modulation scheme, whereas the rate of transfer from the defendant to the reader from 40 kbps to 640 kbps (from 5 kbit/s to 320 kbit/s modulation subcarrier frequency). However, the effective transfer rate is limited by several constraints regarding the situation in time, in the example described above with reference to fig.6d. The period of inactivity that are available for RFID communication, should be used as effectively as possible.

The connection and operation of RFID described above on the basis of the application of this technology for marking and identification products. You should understand that the present invention is not limited to any specific application and can be used in various occasions, where applicable RFID technology. In essence, RFID technology can be considered as the technology of wireless data storage, where the defendant is are store immutable data and/or storage with random access to data, access can be obtained by using subsystems read. In principle, the relationship between the defendants and the subsystem read works by analogy with example implementations of the invention. For example, RFID technology has been selected for storage of biometric identification in advanced digital passports. This passport contains the defendant RFID, on which the recorded biometric data about the owner, such as a digital photograph of his face, a digital image of one or more fingerprints and/or digital image of the iris of the eye. Subsystem RFID readers available in the passport control points at the boundaries of the States, provide access to biometric information to establish identity of the passport holder. In particular, the defendants RFID in passports use the access control mechanism to prevent unauthorized access to recorded information.

In addition, the defendants RFID can also be equipped with logical touch scheme, in particular by monitoring sensors or sensors monitoring the environment, such as temperature sensors, humidity sensors, pressure sensors, gas sensors (define one or more specific types of gases), etc. Calibration of these sensors and/or reading data can be performed via interfaces), detail(s) above. However, be aware that access to the sensor for calibration implemented in the defendant RFID requires some time, which will be referred to as the readout time of the sensor Tread. This is applicable for reading data generated by this sensor. Access to the data generated by the sensor and received from a sensor, requires a period of time, which will be denoted as the recording time of the sensor Twrite. It should be noted that one or more periods of recording sensors Twriteand one or several periods of the read sensors Treadalso should be taken into account when setting up and/or optimize subsystem RFID reader. Optimization can be accomplished by limiting the number of accesses for reading and/or recording sensors, preferably to one or more specific sensors during one communication session with the defendant RFID during one period of inactivity. In contrast to the above parameters, which relate to the characteristics of the connection (the parameters related to communication), the parameters associated with sensors, can be generally considered to be the parameters relating to the application.

In accordance with another embodiment of the present invention, the operation of the subsystem to the RFID reader may be adapted for emission the RF request signal (radio frequency excitation signal, continuous wave) and, if necessary, for measurements "listen before dialogue. As an example, the RF request signal (continuous) is irradiated to activate one or more of the defendants RFID in the coverage area of the radiating subsystem RFID reader. Data exchange with one or more defendants RFID (including receiving data from respondents RFID data and/or commands on the defendants RFID) may be in different frequency bands, and possibly under different protocols and/or based on various wireless data transfer technology. However, the supply voltage through RF request signal advantageous from the point of view of the implementation of the module with a passive power that supports wireless data transfer.

Professionals need to understand that the idea of the present invention, is described on the example of the cellular communication subsystem, also applicable to other subsystems radio communications, in particular to the subsystems with a wireless network interface. This means that the coordination of the activity of a subsystem of the RFID reader in accordance with a variant implementation of the present invention should not be limited to the above-described cellular subsystems, but the overall solution is also applicable to planned for future mobile communication standards 3.5 and 4th generation, WLAN (wireless local area with the children), WiMAX, UWB (ultrawideband communication), Bluetooth or any other wireless technology. Although interference have the greatest impact on the operation of wireless communication systems at frequencies close to 900 MHz ultra-high frequency range, in which the RFID subsystem, the broadband noise produced by the engine RFID reader, can also cause difficulties in the operation of the wireless subsystems and at other frequencies.

In addition, the planning, the appropriate variant of implementation of the present invention, it will be very useful in subsystems RFID operating in the ISM band of 2.4 GHz, which have a strong interference on the wireless communication subsystem operating in the same frequency band, such as IEEE 802.1 Ib/g WLAN and Bluetooth.

Based on the ideas of the invention set forth in the above description, professionals need to understand that is implemented essentially parallel operation subsystem of the RFID reader and subsystems of a wireless/cellular communication. The advantages of essentially parallel operation of the two subsystems can be used by the subscriber when necessary additional data, for example, to search for additional information depending on the data received from the Respondent RFID, in a database storing such additional information. If the defendant RFID compliant EPCgloal and essentially provides the world a unique product code (EPC), employee identification code marked product, the additional information may include, for example, data about the supply chain, such as the origin, the manufacturer, wholesaler, manufacturing date, expiry date, etc. Another use case may include the transmission of information read from the defendant RFID database with the goal of supply chain management.

Unlike traditional primary way of receiving information from the Respondent RFID may be buffering the received information, and further connecting to the database through the interface of cell/wireless. This provides the possibility of access via a wide area network (WAN), for example, to a database on the Internet. The idea of the invention bypasses the buffering and faster access to the database through essentially parallel operation of the two subsystems. The benefits of the invention are particularly noticeable in the case of use when reading a large number of defendants RFID and read information can be recorded in the database, or when the information is retrieved from the database based on the information read from the defendant.

In addition, the invention relates to the operation subsystem of the RFID reader. Since both subsystems are synchronized in time, and subsystem cellular/wireless St. the zi is usually a priority due to the requirements and restrictions imposed by the network, the RFID communication must be configured so that she fell into periods of inactivity subsystem cellular/wireless communication. This requirement matches can be achieved by setting one or more parameters received from the RFID reader and configured to coincide in time RFID communication with one or more of the available periods of inactivity.

For professionals it should be obvious that with the advancement of technology the idea of the present invention can be implemented in a wide range of different applications. Thus, the invention and variants of its implementation is not limited to the above examples but may vary within the claims.

1. A method of scheduling communications over a wireless communication subsystem and the subsystem radio frequency identification, including:
determining one or more periods of activity of the wireless communication subsystem;
determining one or more periods of inactivity on the basis of these one or more periods of activity;
the synchronization subsystem radio frequency identification with one or more specified periods of inactivity and
starting the subsystem radio frequency identification in accordance with one or more periods of inactivity to ensure essentially parallel to the work of the wireless communication subsystem and subsystem radio frequency identification.

2. The method according to claim 1, including:
determining the operating mode of the wireless communication subsystem, where the operating mode includes at least a standby mode and an active mode; and
determining one or more periods of activity of the wireless communication subsystem, depending on the operating mode.

3. The method according to claim 2, in which the wireless communication subsystem operates in the standby mode, and the method includes:
receiving from the wireless communication subsystem information about the position in time relating to the operations of the search call, and information about the position in time relating to the measurement signal;
and the definition of periods of activity, including the length of the periods, on the basis of the obtained position information in time.

4. The method according to claim 2, in which the wireless communication subsystem operates in an active mode, and the method includes:
in the case of subsystems of a wireless communication technology based multiple access time division channels:
obtaining information about the position in time, regarding the status of time slots, in accordance with the time intervals that are currently assigned to upward and downward communication and measurement operations;
and in the case of subsystems of a wireless communication technology based multiple access code RA is a division channels:
obtaining information about the position in time relating to the periods of activity, in accordance with the intermittent mode of operation.

5. The method according to claim 4, in which the specified wireless communication subsystem is a subsystem of the wireless communication technology based multiple access time division channels, and the method includes:
if applicable and/or necessary: request information about the time interval for the rising and/or downlink, which includes one or more Unallocated time slots in the frame structure.

6. The method according to claim 4, in which the specified wireless communication subsystem is a subsystem of the wireless technology broadband multiple access code division channels, and the method includes:
if applicable and/or necessary: a request of communication mode with compression personnel; and
obtaining information about the position in time related to interruptions in transmission and their duration in accordance with a communication mode with compression frames.

7. The method according to claim 4, in which the specified wireless communication subsystem is a subsystem based wireless communication technology cdma2000, and this method includes:
if applicable and/or necessary: requesting intermittent transmission mode; and
obtaining information about the position in time, is teamasia to intermittent transmission in reverse and direct communication lines.

8. The method according to any one of claims 1 to 7, including:
starting the subsystem radio frequency identification in accordance with the time entry subsystem radio frequency identification in the operating regime (ΔIand/or time of the output subsystem radio frequency identification from the working regime (ΔIII).

9. The method according to any one of claims 1 to 7, including:
receiving one or more parameters of the subsystem radio frequency identification related to communication and/or application; and
the determination of the period of communication necessary for subsystem radio frequency identification, in accordance with the received parameters related to communication and/or parameters related to the application; and
setting one or more parameters of the subsystem radio frequency identification related to the communications and/or to the application to adapt the communication period required for subsystem radio frequency identification, to one or more specified periods of inactivity.

10. The method according to claim 9, in which the parameters of the subsystem radio frequency identification, communication-related, include one or more of the following options:
the period of the carrier detect (TLSB);
the type of modulation including amplitude shift keying with two side bands, the amplitude manipulation with a single side-band frequency and amplitude manipulation education is the group phase;
the reference time interval Tariof the character data "0";
relative reference time interval (x) of the character data "1";
the width of the RF pulse (PW);
the carrier frequency;
parameter counting time intervals (Q);
the rise time of the RF envelope (Tr);
the fall time of the RF envelope (Tf);
the settling time (Ts);
while (T1from issuing RFID response to defendant's RFID;
while (T2from the response of the Respondent RFID to transmit commands from the RFID;
while (T3representing the timeout when no response responder radio frequency identification; and
the minimum time (T4between the successful transmission of commands from the RFID.

11. The method according to claim 9, in which the parameters of the application subsystem radio frequency identification include one or more of the following options:
the maximum number of calls to the sensor;
the readout time of the sensor (Treadand
the recording time of the sensor (Twrite).

12. The method according to any one of claims 1 to 7, including:
the definition of the frequency range used in current wireless communication subsystem; and
if the frequency range of the subsystem wirelessly with the ne connection is so close to the frequency band, used by the subsystem radio frequency identification, which is likely to interfere with:
a request for switching the frequency band of the wireless communication subsystem in the range in which interference is not expected; and ensuring parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

13. The method according to claim 11, in which the switching frequency range allows the wireless communication subsystem in a different frequency range using the same Protocol.

14. The method according to claim 11, in which the switching frequency range includes a change of Protocol.

15. The method according to any one of claims 1 to 7, including:
reducing the power level of the radio frequency signal RF subsystem identification and
determination of the level of interference;
and if the interference level is below a threshold level, ensuring parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

16. The method according to any one of claims 1 to 7, in which the subsystem RFID operates in the ultra-high frequency range, in particular in the frequency range from 860 to 960 MHz.

17. The method according to any one of claims 1 to 7, in which the wireless communication subsystem operates at least one system of the group, including subsystem cellular wireless communication on the basis of megusta the information access with time division channels and the cellular communication subsystem based on the multiple access code division of channels.

18. The method according to clause 16, in which the wireless communication subsystem operates at least one system of the group, including subsystem GSM, a subsystem of the GSM/EDGE cellular communication subsystem based broadband multiple access code division of channels and sub cellular cdma2000.

19. Machine-readable media on which is recorded a program code to perform operations according to any one of claims 1 to 13, when the specified code is executed in the processor device, terminal device, network device, a portable terminal, a consumer electronic device or terminal with wireless support.

20. The planning module for the planned communication through the wireless communication subsystem and the subsystem radio frequency identification, where the specified module planning works with the wireless communication subsystem and the subsystem radio frequency identification;
moreover, the planning module configured to determine one or more periods of activity of the wireless communication subsystem and determining one or more periods of inactivity on the basis of these one or more periods of activity;
while the planning module is synchronized with one or more periods of inactivity; and
the planning module is armorum trigger signal to start the subsystem radio frequency identification in accordance with the specified one or more periods of inactivity for implementation, essentially, the parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

21. The module according to claim 20, in which the planning module configured to determine the operating mode of the wireless communication subsystem, which operates, at least in standby mode and in active mode, and a planning module configured to determine one or more periods of activity of the wireless communication subsystem, depending on the operating mode.

22. The module according to item 21, where the wireless communication subsystem operates in the standby mode;
while the planning module configured to receive from the wireless communication subsystem information about the position in time relating to the operations of the search call, and information about the position in time related to the signal measurement
and a planning module configured to determine the periods of activity, including the duration of the periods, on the basis of the received information on the situation in time.

23. The module according to item 21, where the wireless communication subsystem operates in an active mode,
in the case of using the wireless communication subsystem based multiple access time division channels of the planning module configured to obtain position information at that time relating to the floor is the position of time intervals, in accordance with the time intervals that are currently assigned to upward and downward communication and measuring operations,
and in the case of using the wireless communication subsystem based on the multiple access code division multiplexing a planning module configured to obtain position information in time periods of activity in accordance with the intermittent communication mode.

24. Module according to any one of p-23, where the trigger signal is formed in accordance with the time entry subsystem radio frequency identification in the operating regime (ΔIand/or time of the output subsystem radio frequency identification from the working regime (ΔIII).

25. Module according to any one of p-23, which is arranged to receive one or more parameters of the subsystem radio frequency identification related to the communications and/or to the application, and determine the communication period required for subsystem radio frequency identification, in accordance with the received parameters related to communication and/or application;
while the planning module configured to adjust one or more parameters of the subsystem radio frequency identification related to the communications and/or to the application to adapt the communication period necessary for the operation subsystem of the radio frequency identifying the paths to one or more specified periods of inactivity.

26. Module A.25, in which the parameters of the subsystem radio frequency identification, communication-related, include one or more of the following options:
the period of the carrier detect (TLBS);
the type of modulation including amplitude shift keying with two side bands, the amplitude manipulation with a single side-band frequency and amplitude manipulation phase reversal;
the reference time interval Taricharacter data "0";
relative reference time interval (x) of the character data "I";
the width of the RF pulse (PW);
the carrier frequency;
parameter counting time intervals (Q);
the rise time of the RF envelope (Tr);
the fall time of the RF envelope (Tf);
the settling time (Ts);
while (T1from issuing RFID response to defendant's RFID;
while (T2from the response of the Respondent RFID to transmit commands from the RFID;
while (T3representing the timeout when no response responder radio frequency identification; and
the minimum time (T4between the successful transmission of commands from the RFID.

27. Module A.25, in which the parameters is adsystem radio frequency identification, application-specific include one or more of the following options:
the maximum number of calls to the sensor;
the readout time of the sensor (Treadand
the recording time of the sensor (Twrite).

28. Module according to any one of p-23, which is arranged to determine the frequency range used in current wireless communication subsystem, while if the frequency band of the wireless communication subsystem so close to the frequency band used by the subsystem radio frequency identification, which is likely to interfere with, the planning module configured to query the switching frequency range of the subsystems of a wireless communication in a frequency band in which interference is not expected, while the switching frequency range allows you to ensure parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

29. Module according to any one of p-23, which is configured to reduce the power level of the radio frequency signal RF subsystem identification and noise, so if the interference level is below a threshold level, allows parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

30. The terminal communication unit, with the support of the some of the planned communication through the wireless communication subsystem and the subsystem radio frequency identification terminal device, when this terminal device includes a planning module that works with the wireless communication subsystem and the subsystem radio frequency identification,
moreover, the planning module configured to determine one or more periods of activity of the wireless communication subsystem and determining one or more periods of inactivity on the basis of these one or more periods of activity;
the planning module is synchronized with one or more periods of inactivity; and
the planning module is generated trigger signal to start the subsystem radio frequency identification in accordance with one or more specified periods of inactivity to implement, essentially parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

31. The device according to item 30, in which the planning module is planning module in accordance with PP-29.

32. The device according to item 30 or 31, in which the wireless communication subsystem and the subsystem radio frequency identification work with shared antenna, the radio frequency characteristics of which are adapted to the operating frequencies of these subsystems.

33. The device according to item 30 or 31, in which the trigger signal is generated when an alarm from the application running on the device, and/or when receiving input the signal, occurs when user input.

34. The device according to item 30 or 31, which is a cellular terminal device that supports cellular communications in multiple frequency bands and/or multiple cell systems.

35. The device according to clause 34, in which the wireless communication subsystem operates at least one system of the group, including subsystem cellular based wireless communication multiple access time division channels and the cellular communication subsystem based on the multiple access code division of channels.

36. The device according to p, in which the wireless communication subsystem operates at least one system of the group, including subsystem GSM, a subsystem of the GSM/EDGE cellular communication subsystem based broadband multiple access code division multiplexing, a sub-cellular UMTS and subsystem cellular cdma2000.

37. The device according to item 30 or 31, in which the wireless communication subsystem is a subsystem of the wireless interface, where the subsystem interface wireless works, at least one system of the group, including technology wireless networking IEEE HH, Bluetooth wireless technology and technology ultrawideband wireless network connection.

38. With the communication system, providing a plan to communicate via the cellular communication subsystem and the subsystem radio frequency identification, while this system includes a planning module, working with the cellular communication subsystem and subsystem radio frequency identification; and a planning module configured to determine one or more periods of activity of the cellular communication subsystem and determining one or more periods of inactivity on the basis of these one or more periods of activity;
while the planning module is synchronized with one or more periods of inactivity; and
the planning module is generated trigger signal to start the subsystem radio frequency identification in accordance with one or more specified periods of inactivity to implement, essentially parallel operation of the wireless communication subsystem and subsystem radio frequency identification.

39. System § 38, in which the planning module is planning module in accordance with PP-29.

40. System § 38 or 39, in which the terminal device is a terminal device in accordance with PP-37.

41. System § 38 or 39, in which the wireless communication subsystem and the subsystem radio frequency identification work with shared antenna, the radio frequency characteristics of the hell which is adapted to the working frequencies of the subsystems.

42. System § 38 or 39, in which the subsystem radio frequency identification works, at least in the range of ultra-high frequency (UHF), in particular in the frequency range from 860 to 960 MHz.

43. System § 42, in which the subsystem radio frequency identification works in accordance with standard EPC Global.

44. System § 38 or 39, in which the subsystem RFID operates in the frequency range of the ISM, in particular in the ISM band of 2.4 GHz.



 

Same patents:

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11 cl, 4 dwg, 4 tbl

FIELD: information technologies.

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20 cl, 26 dwg

FIELD: information technologies.

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FIELD: information technologies.

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19 cl, 11 dwg

FIELD: information technologies.

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12 cl, 2 dwg

FIELD: information technologies.

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18 cl, 2 dwg

FIELD: information technologies.

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111 cl, 7 dwg

FIELD: information technologies.

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FIELD: information technologies.

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FIELD: information technology.

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15 cl, 11 dwg

FIELD: information technologies.

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4 cl, 19 dwg

FIELD: information technologies.

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2 dwg

FIELD: information technologies.

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2 cl, 5 dwg, 2 ex

FIELD: information technology.

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14 cl, 8 dwg

FIELD: information technologies.

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5 cl, 2 dwg

FIELD: information technology.

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16 cl, 3 dwg

FIELD: information technologies.

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11 cl, 8 dwg

FIELD: physics, communications.

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23 cl, 20 dwg

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EFFECT: enhanced quality of voice information.

12 cl, 11 dwg

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