The thermal transfer mode modem data radio
The invention relates to a method of controlling the transmission associated with temperature, in Radiocommunication systems. The technical result is an improvement of the entire system is achieved by the fact that the mobile station includes a measurement device for determining the operating temperature. When the measured temperature exceeds a predetermined threshold value, the mobile station can reduce its transmission rate, thereby reducing power dissipation in the device. The mobile station informs the system about the speed reduction transmission, resulting in the system can reallocate the freed resources, such as time intervals and/or extend codes. The mobile station may also inform the user about the change of the transmission speed and/or temperature of the mobile station, then the user can move to the best location for transmission. 2 C. and 29 C.p. f-crystals, 6 ill.The technical FIELD,The present invention relates to the field of communication systems and, more specifically, to the field of communications systems, in which the transfer of information can be achieved with variable speed.PRIOR artIn preceded by the radiotelephony. This increase was at least partly linked to the increase in the number and improve the quality of services provided by Radiocommunication systems. For example, systems of the previous generation were designed primarily to support voice communication. However, in the present system of cellular communication provide many additional services, including, for example, the search communication, messaging and data transfer (for example, to communicate over the Internet). Providing some of these services was made possible through the use of higher throughput (i.e. greater than those used for voice communication).To provide a wide array of communication services requires a minimum data rate of the subscriber. For example, for the transmission of voice data and/or data transmission speed of the subscriber corresponds to the quality of speech and/or data throughput and higher data rate of the subscriber provides the best speech quality and/or higher data throughput. The total data rate of the subscriber is determined by the selected combination of methods, for example, speech encoding, encoding corestones access with time division channels, TDMA) - the number of allocated time slots for system MDCRC (multiple access code division multiple access, CDMA) -number of codes of the extension.Modern cell phones transmit information at the speed of data transfer over the network approximately 10 kbit/s In the future it is expected that cellular modems will be able to receive and send a few hundred kilobits per second. The example is based on GSM (global system for mobile communications - GSM) system packet transmission and processing of data, called packet radio for General use (SPROP, GPRS). However, to achieve these higher transfer speeds while maintaining existing cell sizes (the last criterion is strongly required by the network operators), the transmitted power should increase accordingly. In such a scenario, especially for low-power radio modems, which can be embedded in portable phones and cards, modems, embedded personal computers (PC) or laptop computers, with increasing average power will stand out more heat than can be cooled by the specified device.For example, power amplifiers, apolobamba in electromagnetic waves. Depending on the modulation scheme and its implementation in the power amp about half of the produced power is lost in heat dissipation. This heat can be damaging to the modem or to have a negative impact on the destination portable device. Thus, the problem of insufficient heat dissipation, even more than the complexity of the data with higher speeds, can limit the maximum data rate at which small phone can transmit information.When packet data transmission activity is often discrete. This reduces the average power consumption. Ripple packet data managed by the application, i.e. instant use. However, the developer of a mobile phone usually assumes the worst-case scenario, i.e. the moments of time when the application tasks will be transmitted over a long period of time (related to the time constant of heat dissipation) full possible speed data transmission. Thus, the mobile station can be performed with restricted data transfer rate and, accordingly, with Tampere.In a number of publications described the methods of compensation increase the temperature of the device, controlling the temperature of the device and adjusting the operation of the device based on the monitored temperature. For example, in the publication EP 800282 described a system in which the temperature sensor monitors the temperature within the part of the system. When the monitored temperature exceeds the temperature threshold value, the transmission rate associated with a speech codec, decreases. Similarly, in the abstract (patent Japan) JP 9/326749 described a system in which the data packets are passed in consecutive time intervals, when the temperature of the power supply is less than the threshold, but in which packet data is carried out periodically, when the temperature of the power supply unit is considerably increased.Although the above standard methods partly devoted to the resolution of the temperature/speed transmission, they are one-sided, i.e., the mobile station carries out the determination of temperature and accordingly unilaterally controls the transmission. The applicant anticipates additional features that can accompany a joint decision between the system, the mobile device and the subscriber, to resolve user.Disclosure of the INVENTIONIn accordance with the best of the embodiment of the present invention, the mobile station measures its own temperature and compares this temperature with the threshold value. When the measured temperature exceeds the threshold value, the mobile station reduces its power consumption transmission by reducing its transmission rate. The mobile station may first query the system about the speed reduction transmission or can make their own decision on the need to reduce its transmission rate. In any case, the mobile station transmits to the system a sign of reduced transmission rate. Thus, the system can reallocate resources, for example, by distributing the released time slots in the transmission in uplink communications with other mobile stations by distributing exempt extends codes transfer for uplink communications with other mobile stations and/or through the allocation of additional time slots in the transmission for downlink mobile station decreases its transmission rate.According to another variant implementation of izobreteny the sign that reduction caused by the increased temperature of the mobile station. Information about high temperature can be represented in various forms, in particular in the form of video, audio or speech signal. This allows the caller to navigate in the best position for gear that may be reflected in the command transmitted by the mobile station to decrease its transmit power accordingly reducing the temperature of the mobile station.According to other variants of implementation of the present invention the decision to decrease the transmission speed can be taken on the basis of the measured temperature and based on the transmission status of the mobile station. For example, if the mobile station is in the middle of the message is high level, it can continue to transmit frames at a lower level even after exceeded the first temperature threshold. However, long term transfer may be based on measured temperature, which is below the second threshold. Authorizing the mobile station to complete the message of a higher level, re-transmission delay and processing are minimized.BRIEF DESCRIPTION of DRAWINGSOther characteristics and advantages of the present invention provides a block diagram of an example cellular systems with mobile phones.Fig.2 - the sequence of operations in the variant example of implementation of the present invention.Fig.3 is an example of mapping between levels in the example of wireless communication system, subject to TIA/EIA 136.Fig.4 - sequence of operations according to another variant implementation of the present invention.Fig.5 - sequence of operations according to another variant implementation of the present invention.Fig.6 is a graph illustrating an example of the relationship between the transmit power per bit, data transmission speed and the total transmit power.The BEST OPTION of carrying out the INVENTIONAccording to the best options for implementation of the present invention the temperature of the mobile station control and use different ways to control the operation of the system and the mobile station and informing the subscriber about the capacity of the mobile station so that the subscriber can take the appropriate measures. As can be seen from the above publications EP 800282 and JP 9/326749, practical implementation of temperature sensors and controllers read the measured temperatures in the radio communication devices is in itself known and therefore not described in detail. These publications are included as references. In us the information system with respect to changes in the work, the purpose of reallocation of resources in the system and inform the caller about changes in the work associated with changing temperature.Although described in terms of systems, cellular telephone, it should be clear that the invention is not limited to this technical field. More specifically, in the following description of the used terms that can be associated with systems that comply with the requirements of TIA/EIA 136 (manufacturers Association communications USA/ electronic industry Alliance USA) and GSM/SPROP.However, for professionals in the art it is evident that the present invention can be implemented in other communication standards such as IS-95 or PDC (standard for wireless communication in Japan), as well as in systems using other access methods, such as CDMA.Fig.1 is a block diagram of an example cellular systems with mobile phones, which includes the above as an example, base station 110 and mobile station 120, which may be implemented in the present invention. The base station includes a unit 130 management and processing, which is connected to service switching center to the mobile phone which support SPROP, OPS (SGSN) (not shown). General aspects of radio communication systems with packet transmission is known, for example, from U.S. patent No. 5590133, 5768267 included in the present application as reference.The base station 110 handles many of the voice channel by the transceiver 150 voice channel, which is controlled by the block 130 management and processing. Each base station includes a transceiver 160 of the control channel that can handle more than one control channel. The transceiver 160 of the control channel is controlled by a block 130, the control and processing. The transceiver 160 of the control channel carries control information on the control channel of the base station or cell to the mobile stations assigned to the control channel. Be aware that the transceivers 150 and 160 can be implemented as a separate device like the transceiver 170 speech and control information in the mobile station 120.Mobile station 120 receives the information transmitted on the control channel on your transceiver 170 speech and control information. Then block 175 processing evaluates the received message on the control channel, which may include subopercle, what cell should be given mobile station. In the present invention may also be used in the broadcast control channel for directing the mobile station information indicating that some of the functionality of the base station, for example, related to the bandwidth (data rate). Thus, the information about the capabilities of the base station may include information related to the functioning of the base station (if any) using multiple time intervals, multiple codes and/or different modulation/coding, and features, among other things, affect throughput when transmitting/receiving. After receiving the mobile station specified information it can compare its own capabilities with the opportunities provided by the base station, and determine the maximum achievable data rate in the cell.Mobile station 120 also includes a device 185 input in the form of, for example, a numeric keypad, which allows the subscriber to interact with the mobile station. The device 190 display such as a liquid crystal display (LCD), obespechitelnoj and/or the temperature alert, as is described below. Device or sensor 195 temperature measurement measures the temperature in the casing of a mobile station, such as near a power amplifier (not shown), and directs the information about the temperature on unit 175 processing. In addition to design in the form of a cellular telephone mobile station may also be a card of a personal computer PC, for example-developed in accordance with the PCMCIA standard (International Association of manufacturers of memory cards for the IBM personal computer, which is interfaced with a personal computer, for example a portable computer. In this latter case, the display device may be a PC monitor.The mobile station also includes a mass storage device 180, which may contain pre-programmed address containing information about the characteristics of the terminal, and one or more stored values of the temperature threshold. As the capabilities of the terminal may be limited by the subscription type supported by the user, such limitations must be known to the terminal and/or system in order to compute the throughput. This information can be fed to the terminal in several ways. For example, information which may be transmitted to the terminal when installing call/login.When installing the call or at the beginning of the transaction), the system determines the initial transmission rate which will operate the connection. The system can identify the mobile station in different ways. For example, the system can find the capabilities of a mobile station in the home register (DP, HLR) using MIN (identification number of a mobile station (INS)) and/or IMSI (international mobile subscriber identity - MIAMS) mobile station; the system can take the information from the mobile station during registration, or during the installation of the call (at the beginning of the transaction), for example, by means of messages or symbols category. The system may further specify transmission resources, for example, time intervals and/or codes based on the capabilities of the mobile station in addition to other factors.For specialists in the art it is obvious that the base station 110, to ensure a reliable determination of bits sent by the mobile station 120, the received power bits must be above the level of noise and interference on the value-specific access method. Signal-to-noise ratio (SNR, SNR) can be measured after any completed Dublin core ways to resubmit unrecovered data blocks (methods automatic resend request, ARQ), low values of SNR result in higher latency and lower bandwidth. More specifically, when the deterioration in communication via a particular channel, the mobile station shall often to resend the block instead of sending a new data block.However, for a given quality of service (characterized by bandwidth and latency), the higher the data rate, the greater the required total power in the mobile station to maintain a given SNR and consequently a given quality of service in the base station. To transfer bits of information requires a certain level of power. Therefore, the power of the transmitter should be proportional to the number of transmitted bits. The above pattern does not depend on the access method, for example, MDRC (multiple access frequency division multiple access, FDMA), MDRC, MDCRC, MOORS multiplexing (orthogonal frequency division signals, OFDM) or any combination of these basic concepts.When approaching the mobile station 120 to the base station 110 SNR at the base station 110 increases. Thus, the alternative rule, whereby to increase the data transfer rate required led the network operators usually prefer within limits, imposed by cost, size and complexity of the equipment, to transmit data regardless of the location of the user and do not change the size of the cell.Below is an example to better illustrate the relationship between bandwidth and temperature in the mobile station. In the GSM system (global system for mobile communications), there are eight time slots in the frame MDRC. For (systems) with a switching circuit for eight subscriber devices can be multiplexed on a single carrier. For each full-speed channel schedule the user designate one time interval in the frame MDRC. Standard mobile station GSM can transmit with a power of 1 watt. Average power consumption in this case is 1/8 W, as the mobile station is active only within 1/8 period of time. As the frame MDRC very short (a few milliseconds), the temperature does not undergo significant changes during the frame MDRC, and the temperature is determined by the average transmit power, for example, 1/8 W.Natural way to increase the speed of data transmission in GSM is to highlight more than one time interval /per user/ per frame, this concept vystavna N/8 watts. Thus, the power increases in proportion to the speed of data transmission in bits, that is, the transmission range (cell size) is supported. If the mobile station must transmit all 8 time intervals, the power consumption is 1 watt.As indicated above, the adjustment of the transmission rate can also be produced by varying the modulation type. For example, in modern standards GSM, SPROP, the selected modulation type is GMMS (Gaussian shift keying minimum shift GMSK), which is a type of modulation with constant envelope". This type of modulation can be implemented with a relatively high degree of efficiency, i.e. the majority of the power is converted into an electromagnetic signal. In subsequent upgrades of the physical layer of SPROP, called EDGE, it is expected that the selected modulation (8PSK) 8-phase shift keying (FMN). FMN is the type of modulation with nonconstant envelope, which will reduce the efficiency of the power amplifier, that is, increase the heat generated by the mobile stations.The above trends to increase the speed of data transfer by providing the subscriber with a larger number of time intervals and distillating problems temperature-related. Although the preceding examples are stated in terms of systems MDRC similar problems with power, stand before systems MDCRC, which can be assigned to additional extend the codes to provide greater bandwidth, and/or can be used with variables coefficients of expansion with the use of "punching" code, to regulate the speed of data transmission. In fact, the applicant proposes that the complexity associated with the dissipation will be more likely to restrict the supply of products on the ascending line than restrictions on signal processing.As indicated above, one of the relatively crude methods of maintaining temperature control of mobile stations is to create a device for temperature measurement in the mobile station and the decrease in transmission speed, when the temperature exceeds the threshold value. According to one of embodiments of the present invention is proposed to introduce an additional interaction between the mobile station and the system during the processing of this type is associated with the temperature of the transmission regulation.For example, in modern systems GSM mobile hundred who currently own a carrier channel traffic) for each frame MDRC. This method is to perform measurements in transmission service with the participation of the mobile station (PAMS, MANO). In SPROP there is a similar requirement to the implementation of measurement used in this case to reselect the cell. For a single frequency synthesizer takes some time to rebuild the frequency for a given channel, to perform the measurement, and then to return to the frequency of the traffic channel.In the presence of the above limitations of the standard maximum number of time slots per frame, during which the mobile station can make the reception and/or transmission is five in GSM systems or SPROP, not the eight that are available in each frame MDRC. (However, according to the applicant, there is the possibility that in systems of the new generation of mobile stations will be allowed to send and/or receive information using a greater number of time intervals to increase throughput, see patent application U.S. No. 08/544841 "Identifying and Controlling Signal Strength Measurements by a Mobile Station in a Wireless Communication System" in the present description by reference). Specification SPROP provides a service alarm in which the mobile station info is injured, for example, can be expressed as the maximum of the sum of the time intervals of transmission and reception, for example 5. The mobile station may, for example, to get into work mode when it takes four time slots and transmits in one time interval, or in another operating mode in which it takes three time intervals and transmits in two.According to the best variant of implementation of the present invention, the mobile station may change the use of their resources to reduce power consumption, recognizing that its operating temperature is too high, while the mobile station informs the base station about this change or requests changes. The message can be re-defined for this purpose, may be implemented as a new information element existing messages, for example, as described above messages about the possibilities, or may be incorporated by filling existing information element (for example, about the possibilities of transfer) again requested stamp values/categories or already modified stamp values/categories. A separate information element may be provided with, whether it's with the m bit rate throttling. This information is used by the system to redistribute resources like radio interface.Exchange handshake when the speed change transmission between the mobile station and the base station can take many forms. For example, a mobile station may request a change speed transmission and wait for positive confirmation before making changes, the mobile station may either request a change speed transmission and wait for a confirmation that speed for a predetermined time, during which it can undo the change, or simply change the transmission speed and to inform the system.For example, consider a system SPROP that allow a mode in which in the absence of contrary instructions, the mobile station reserves certain time intervals for uplink communication. Use redundancy mechanisms, for example, to avoid situations in which different mobile stations attempt to transmit data to the system using the same resource at the same time. Redundancy mechanisms used in radio systems, more sublattice is obtained in the description by reference.If, however, the mobile station starts to skip data transfer in some of its reserved time slots for uplink communication from problems of overheating, these time intervals may remain unused, because other users do not have sanctions for initial access or increase the speed of data transmission, using these time intervals. Therefore, according to the present invention, the mobile station informs the system about the need to change the current transfer speed, so that the system can reallocate resources, for example to make the time intervals available for other purposes. For example, a mobile station that transmits with a triple-speed transmission (for example, all three channels on the radio frequency in the system TIA/EIA 136, designated as channels a, b and C), can transmit data packets 1, 2, 3, 4, 5, 6 and 7 at the following script:Frame 1: A1, B2, C3 Frame 2: A4, B5, C6 Frame 3: A7,...However, if the transmission speed of the mobile station further drops to a dual-speed transmission, its transfer pattern can be expressed as follows:Frame 1: A1, B2 Frame 2: A3, B4 Frame 3: A5, B6...Thus, the channel is available for use in the th station precise instructions to retreat from the use of the resource transfer, the same mobile station can benefit consisting in improving the distribution of its downlink, and/or other users can benefit by receiving additional transmission resources.The method in accordance with the above the best of the embodiment of the invention illustrated in Fig.2. At step 200 measures the temperature T1the mobile station using the device or sensor 195. Compared with a stored threshold temperature Tthperform on the stage 202 decision. If the mobile station is not overheated, for example, when T1<T ththe work is carried out in accordance with step 204 in which a mobile station transmits information assigned to the current transmission speed using current resources allocated to it. Conversely, in case of overheating the mobile station, the work is carried out in accordance with step 206, which determines a reduced transmission rate. For example, if the mobile station transmits information usingxtime intervals, and Tthmuch more than T1then the mobile station may reduce its transmission rate up to 1 time frame. Thus, WEEE, as the new transmission rate, the mobile station transmits the system characteristic relatively new transmission speed of the mobile station at step 208. This allows the system to reallocate resources previously allocated to the mobile station at step 210. Depending on the type of system this redistribution process may include, for example, the allocation of vacant time slots for uplink communication to other mobile stations, allocate extends codes for uplink communication to other mobile stations, and/or the allocation of additional time slots on the downlink of the mobile station, which reduces its transmission rate. More detailed information about systems with variable speed transmission in the environment MDRC described in patent application U.S. No. 08/725643 "Multi-Rate Radiocommunication Systems and Terminals" on October 15, 1996. Example of variable speed transmission in the environment MDCRC described in patent application U.S. No. 08/890793 "Channelization Code Allocation for Radio Communication Systems," dated July 11, 1997. The last two publications inserted into the description by reference.Alternatively, after determining exceeding the first temperature level of the mobile station (level preduprejdenia station can expect from the system commands to perform the desired reduction, or alternatively, does not receive a command for lowering the temperature of the system. If the results of further measurements made by the mobile station is established that the temperature exceeds the second level (severity), it can autonomously to reduce the speed or the capacity of its transmission.According to other variants of implementation of the present invention, in addition to informing or instead of informing the system about the change speed transmission, a mobile station 120 may inform the subscriber (1) on heating it to a temperature, which can affect the transmission rate, and/or (2) actual speed change transmission. For example, mobile station 120 after the temperature measurement, which is coming to Tthmay be addressed to the subscriber a warning signal in the form of video, audio or voice signals. The result of informing the subscriber about the overheating of the mobile station he has the ability to adjust the temperature or change the operation mode of the mobile station in such a way as to reduce the power of its transmitter and, consequently, the temperature of the mobile station. For example, a user may attempt to improve the receiving mobile station, PEMA power control system (described below), or can move a small distance (or simply adjust the antenna) to try to reduce Rayleigh fading.To ensure the subscriber's some feedback on the mobile station 120 may be introduced yet another indication that the subscriber's current operating parameters of the mobile station related to the temperature decrease. For example, a mobile station may contain an indication that informs the caller about his current transmit power or a string that specifies some combination of its transmit power on the uplink communication and the energy of the received signal on the downlink. It provides subscribers with faster feedback than the indicator of the measured temperature and the measured temperature will only slowly decrease after decreasing the transmission power.If the user manages to avoid changing the transmission rate, i.e., if the measured temperature does not exceedthin any further action is not necessary. If, on the other hand, the speed change transmission is necessary, the mobile station may inform the subscriber about the new transfer rate through its display device 190. E. informiruet subscriber about that reduced the transfer rate was a result of the high operating temperature. In addition, the characteristic transfer rate can be expressed in percent of the maximum transfer rate (for example, mobile station, or from that which is possible in connection specified by the capabilities of the mobile station and the base station), for example, the line showing on the display device 75% of maximum. The characteristic transfer rate may be an alternative expressed as a percentage reduction from the maximum transfer rate. The specified characteristic can not depend on the ripple current applied problems and sealing of access for users of the channel, i.e. to inform the subscriber of the mobile station about the current temperature-related features instead of the instantaneous velocity of transmission of the data packet. Alternatively, or in addition to this, you can create a sign that indicates instantaneous transmission and/or reception of data. Any other required alarms/alerts can also be generated by the mobile station to indicate a change in transmission speed, for example, tone, sound effect, sound warning, etc.As noted above, many systems radioing station at an optimal level to ensure communication of high quality without unnecessary interference. In General, power control closed loop refers to the ability of the system to control the quality and/or energy of the received signal for the signal transmitted by the mobile stations, and to send the appropriate commands power control. For example, if base station 110 receives a packet from the mobile station 120 that have bit errors in excess of a predetermined, it sends a command to control the transmission power in the next package down the line, instructing the mobile station to increase its transmit power. Conversely, if the base station receives a packet with the energy of the signal in excess of the amount necessary to accurately decode the information, it will send the command to the power control, which instructs the mobile station to decrease its transmit power.Thus, the subscriber can move towards the open area, for example from the building, closer to the window of the car, etc. the System can accordingly decide whether to instruct the mobile station to decrease its transmit power, which, in turn, will reduce the heat dissipation of the amplifier, and will allow the mobile station to return to my first of the Naya temperature of the mobile station and the current status of the transmission can be taken into account when determining when and how to adjust transmission from the mobile station. For example, examples of embodiments of the present invention provide for determining the position of the transmitting mobile station in the message of a higher level, that is allow you to determine how many messages a higher level was given before the decision was made to slow down or stop transmission due to heating. This can reduce the impacts associated with the temperature regulation of the transfer, because the recovery of the transmitted information can be facilitated if the passed full message at a higher level.To better understand the branching gear higher/lower level, consider the example of display shown in Fig.3, for a digital control channel, as described in TIA/EIA 136. Note, however, that the use of this display example of a digital control channel is purely illustrative and that the present invention finds particular application in other contexts, for example, the transmission of data packets on a transmission channel packetized data, and other contexts may use different terminology (e.g., frames ULK (control logical channel, LLC) and the frame is each marked area in Fig.3 quite familiar with standard specification TIA/EIA 136 (part 010 - 720) on February 6, 1998, included in the description by reference. The subject matter of the present description is a mapping between message level 3 in the three-level messages 2 (which includes the information of level 3 plus the header, check bits are cyclic redundancy code (CEC, CRC and tail bits) message level 1 (physical layer). You can see that each message a higher level transmit multiple messages at a lower level and, ultimately, many packages MDRC. According to this example, it is preferable to complete the messages of a higher level prior to the interruption of transmission or reduction of transmission speed. This can avoid the need for retransmission of data blocks and it is possible to reduce a delay associated with the completion of the decoding of the message 3 level. Thus, for example, if the mobile station still need to send another package MDRC to complete specific message 3 level (or another message 3 levels to complete the message of a higher level), the present invention may take this into account when determining the transmission mode of the mobile station in addition to the measured temperature.The best way according the tanzie at step 400. At step 402, if the measured temperature Tmis less than the value of the first threshold of Tth1the transfer may continue with the current transmission rate in accordance with step 404. Otherwise, the mobile station 120 determines concluded whether it is your current frame of a higher level, for example left to send any packets MDRC frames or level 2 in the current message level 3, at step 406. If not, the mobile station decreases its transmission rate or interrupt transmission completely due to heating in step 408.If the mobile station is heated to a temperature in excess of the allowable, but has remaining to transmit frames at a lower level, to complete the frame of a higher level, it may continue to attempt to send the data packets. At step 410, the mobile station compares the measured temperature T with the second threshold value Tth2. If the temperature is greater than this second threshold, the mobile station is unable to complete the message of a higher level, and the operation returns to step 408, at which the station shall take appropriate action to reduce its transmit power. Otherwise, the mobile station transmits another quadriseta in its original state, to determine whether completed frame at a higher level.As soon as the mobile station ends its frame higher level or exceeds the second temperature threshold, it reduces its transmission rate (or interrupts). However, it may be appropriate to provide the mobile station can increase its transmission rate (or restore active transfer) after a cooling period. Thus, after a predetermined period of time twthe sequence of operations may return to check the temperature of the mobile station again at step 400. For professionals it is clear that the variant example of implementation, illustrated in Fig.4, may be combined with any of the previous embodiments, i.e., may include informing system with respect to the transmission rate reduction (as well as interrupt (message) level 3 and increase transfer speed after the cooling off period) and informing the user of any or all of these solutions.Although description was given in the context of packet data for a specialist should be apparent that the present invention can be also applicable to the E. Synchronous operation of the integral requires a fixed data rate and therefore reducing the transmission rate currently assumed. However, the variant example of implementation described below, in which the transmit power directly reduced, easily applicable to synchronous operation.The present invention can be used in systems operating in accordance with the asynchronous scenario data based on TIA/EIA IS-130 or GSM. However, depending on the implementation of the base station system may, in the absence of power, synchroscope, codes and so on, it is incorrect to identify the time of arrival of the signal. Protocols data in systems of this type contain frames which are numbered, so that the higher level Protocol may be able to simulate situations in which Autonomous mobile station adjusts its transmission resources, for example, from 2 time intervals up to 1 time frame. However, the functional blocks of the base station management can equate this independent change in the transfer to the case of large errors, with the possibility of disconnection of the call. Thus, in this asynchronous context switching circuits explicit signaling mobic (for example, the use of a smaller number of time intervals), it may also be useful.According to another variant implementation of the present invention, the mobile station may adjust its transmit power instead of the indirect adjustment of the transmission power by changing its transmission rate. The method according to the variant example of implementation depicted in Fig.5. In this way the temperature Tmmeasured at step 500. If the measured temperature is less than the threshold temperature (step 502), the mobile station continues to transmit the current power level. Otherwise, if, for example, the mobile station starts to overheat, it reduces its transmit power by 0.5 dB, at step 506. If the system decides that the quality of a received its signal on the uplink connection is too low, for example, by reducing the transmit power of the mobile station, it can send a command to control the transmission power of the mobile station, instructing the mobile station to increase its transmit power. In this case, the mobile station may further increase its transmit power and to reduce its transmission rate in accordance with any one of the preceding variants implementing the>/p>As another alternative, when the temperature threshold is exceeded, the mobile station may provide the reducing power transmission and speed reduction transmission, to reduce its operating temperature. I.e., for example, the mobile station can transmit in a smaller number of time intervals and a reduced capacity to reduce its total transmit power. In Fig.6 illustrates examples of the relationship between the transmit power per bit, data transmission speed and the total transmit power. You can see that to reduce the total transmission power from nine to four units can be taken different approaches to move from curve transmit Power = 9 curve to transmit Power = 4. A mobile station can only reduce its transmission rate, can only decrease its transmit power per bit or can reduce some combination of data rate and capacity on a bit.According to the method of information exchange between the mobile station and communication system optionally inform the user about the reduction of the transmission rate when the temperature changes, with reduced speed in the transmission display using images, abuserelated mobile station includes a transmitter for transmitting information over terrestrial interface, the device temperature measurement to determine the temperature of the transceiver, a processing unit for comparing the measured temperature with a threshold temperature value, and to selectively reduce the transmission rate of the transmitter based on the comparison results, and an output device for informing the user of the transceiver on a reduced transmission rate. When the output device is a display or a loudspeaker, or a computer connected to the transceiver.According to the method of controlling the temperature of the mobile station in the communication system measures the temperature of the mobile station, comparing the measured temperature value with a threshold value and selectively inform the user about the measured temperature.In addition move the mobile station to another location with regard to selective information.According to the method of exchange in the communication system measure the temperature level in the mobile station, determine the position in the process of transferring a mobile station in a message of a higher level and selectively delaying transmission of the mobile station based on the measured temperature level and position in the process of transferring the communication level 3 and at the stage of identifying additional check, whether the current message 3 level fully transferred.According to this method at the stage of selective transmission delay optionally comparing the measured temperature with a first threshold temperature level and delay transfer, if the measured temperature exceeds the first threshold value and the current message level 3 fully transferred.It is advisable to stage selective transmission delay additionally continued the transfer, if the current message level 3 has not been fully transferred.In accordance with the method at the stage of selective transmission delay optionally comparing the measured temperature with a second threshold, if the current message level 3 has not been completely transmitted, and continue to send the current message level 3, if the measured temperature does not exceed the second threshold.In accordance with the way the system passed a sign pointing to the delay of transmission.According to this method optionally inform the user of the specified mobile station of the transmission, the detainees because of the high temperature.According to this method at the stage of selective delay additionally perforined rasshiriaetsia reduce many time slots per frame, associated with the specified gear.In accordance with the method at the stage of selective delay additionally reduce the amount of widening of the codes associated with the specified gear.The proposed transceiver to exchange information between a mobile station and a communication system additionally contains an output device for informing the user of the transceiver to the reduction of the transmission power.In the transceiver to exchange information between a mobile station and a communication system reduced the transmission rate is displayed in percentage of the maximum transfer rate.In the specified transceiver reduced transmission rate is displayed as a percentage reduction from the maximum transfer rate.In the specified transceiver reduced transmit power level is displayed in percent of the maximum transmit power.In the specified transceiver reduced transmit power level is displayed as a percentage reduction from the maximum transmit power.We offer a mobile station includes means for decreasing the transmission rate associated with the transfer of information from the mobile station, and means for information the other station contains means for reducing the transmission power, associated with the transfer of information from the cell, and means for informing the user about the reduced transfer rate.According to another variant implementation of the mobile station includes a transceiver for transmitting and receiving radio signals, and an output device to display the transmit power used by the transceiver, the output device using a computer connected to the mobile station.
Claims1. Way to exchange information between a mobile station and a communication system, according to which measure the temperature level in the mobile station, comparing the measured temperature with a threshold value, selectively reduced in the mobile station, based on the phase comparison, the transmission rate of information in this communication system, when the measured temperature exceeds the threshold value, transmits a sign of a reduced speed of transmission from the mobile station to the system and reallocate resources in the system taking into account the sign of the reduced transfer rate.2. The method according to p. 1, whereby the phase of the sampling speed reduction transmission additionally implement the ADR, where M>n3. The method according to p. 1, whereby the phase of the sampling speed reduction transfer additional transfer using N extends codes instead of M extends codes, where M>n4. The method according to p. 1, whereby the phase of the sampling speed reduction transmission additionally carry out “perforation” extend code.5. The method according to p. 1, according to which optionally inform the user about the reduction of the transmission rate when the temperature changes.6. The method according to p. 5, according to which display a reduced transmission rate using the image, indicating overheating.7. The method according to p. 5, according to which form of the sound signal, which indicates overheating.8. The method according to p. 1, according to which stage of the redistribution of resources in the system taking into account the sign of reduced transmission speed advanced transfer from the system to the mobile station during at least one additional time frame down the line.9. The method according to p. 1, according to which stage of the redistribution of resources in the system taking into account the sign of the reduced transfer speeds allow other mobile is through the station on the up line.10. The method according to p. 1, according to which stage of the redistribution of resources in the system taking into account the sign of reduced transmission speed appoint extend the code used by one mobile station to another mobile station.11. The method according to p. 1, according to which during transmission characteristic reduced speed of transmission from the mobile station to the system optionally transmit a request for reduced transmission rate.12. The method according to p. 1, according to which further define the position in the process of transferring a mobile station in a message of a higher level and selectively delaying transmission of the mobile station based on the measured temperature level and position in the transmission of the specified mobile station.13. The method according to p. 12, according to which the message of a higher level is a message of level 3 and at the stage of determination additionally identify whether the current message level 3 fully transferred.14. The method according to p. 13, according to which stage selective transmission delay optionally comparing the measured temperature with a first threshold temperature level and delay transfer, if the measured temperature levels exceed the who on stage selective transmission delay additionally continue to transfer, if the current message level 3 has not been fully transferred.16. The method according to p. 13, according to which stage selective transmission delay optionally comparing the measured temperature with a second threshold value, if the current message level 3 has not been completely transmitted, and continue to send the current message level 3, if the measured temperature does not exceed the second threshold value.17. The method according to p. 12, according to which the transfer system is a sign that indicates the delay of transmission.18. The method according to p. 12, whereby optionally inform the user of the specified mobile station of the transmission, the detainees because of the high temperature.19. The method according to p. 12, whereby the phase of the sampling delay advanced perforined” extending the code associated with the transmission.20. The method according to p. 12, whereby the phase of the sampling delay addition reduce lots of time intervals on the frame associated with the specified gear.21. The method according to p. 12, whereby the phase of the sampling delay additionally reduce the amount of widening of the codes associated with the specified gear.22. A transceiver for exchanging information between a mobile station and Sisti, containing a transmitter to transmit information over terrestrial interface, the device temperature measurement to determine the temperature of the transceiver and a processing unit for comparing the measured temperature with a threshold value and to selectively decrease in the mobile station according to the results of the step of comparing the transmit power associated with the exchange of information with the communication system, and reallocation of resources in the communication system, when the measured temperature exceeds the threshold value.23. The transceiver according to p. 22, optionally containing an output device for informing the user of the transceiver to the reduction of the transmission power.24. The transceiver according to p. 22, further containing a receiver for receiving commands to control the transmission power when the reception processing unit commands the power control transmission instructing the transceiver to increase its transmit power, the processing unit is configured to increase the transmit power and reducing transmission speed.25. The transceiver under item 24, in which the transceiver is configured to send the message, requesting a reduction in transmission rate, completion of the reduction of transmission speed and is able to transmit messages, indicates the speed reduction transmission.27. The transceiver according to p. 22, in which the transceiver is configured to reduce the transmit power and the implementation of the reduction of the transmission rate when the measured temperature value exceeds the threshold.28. The transceiver according to p. 22, in which the speed reduction transmission is displayed in percentage of the maximum transfer rate.29. The transceiver according to p. 22, in which the speed reduction transmission is displayed as a percentage reduction from the maximum transfer rate.30. The transceiver according to p. 22, in which the reduced transmit power level is displayed in percent of the maximum transmit power.31. The transceiver according to p. 22, in which the reduced transmit power level is displayed as a percentage reduction from the maximum transmit power.
FIELD: radio engineering; construction of radio communication, radio navigation, and control systems using broadband signals.
SUBSTANCE: proposed device depends for its operation on comparison of read-out signal with two thresholds, probability of exceeding these thresholds being enhanced during search interval with the result that search is continued. This broadband signal search device has linear part 1, matched filter 2, clock generator 19, channel selection control unit 13, inverter 12, fourth adder 15, two detectors 8, 17, two threshold comparison units 9, 18, NOT gates 16, as well as AND gate 14. Matched filter has pre-filter 3, delay line 4, n attenuators, n phase shifters, and three adders 7, 10, 11.
EFFECT: enhanced noise immunity under structural noise impact.
1 cl, 3 dwg
FIELD: radio engineering for radio communications and radar systems.
SUBSTANCE: proposed automatically tunable band filter has series-connected limiting amplifier 1, tunable band filter 2 in the form of first series-tuned circuit with capacitor whose value varies depending on voltage applied to control input, first buffer amplifier 3, parametric correcting unit 4 in the form of second series-tuned circuit incorporating variable capacitor, second buffer amplifier 5, first differential unit 6, first amplitude detector 7, first integrating device 9, and subtraction unit 9. Inverting input of subtraction unit 9 is connected to reference-voltage generator 10 and output, to control input of variable capacitors 2 and 4. Automatically tunable band filter also has series-connected second amplitude detector 11, second integrating unit 12, and threshold unit 13. Synchronous operation of this filter during reception and processing of finite-length radio pulses is ensured by synchronizer 14 whose output is connected to units 10, 8, and 12. This automatically tunable band filter also has second differential unit whose input is connected to output of buffer amplifier 3 and output, to second control input of variable capacitor of band filter 2.
EFFECT: enhanced noise immunity due to maintaining device characteristics within wide frequency range.
1 cl, 1 dwg
FIELD: radio communications engineering; mobile ground- and satellite-based communication systems.
SUBSTANCE: proposed modulator that incorporates provision for operation in single-channel mode with selected frequency modulation index m = 0.5 or m = 1.5, or in dual-channel mode at minimal frequency shift and without open-phase fault has phase-shifting voltage analyzer 1, continuous periodic signal train and clock train shaping unit 2, control voltage shaping unit 3 for switch unit 3, switch unit 3, switch unit 4, two amplitude-phase modulators 5, 6, phase shifter 7, carrier oscillator 8, and adder 9.
EFFECT: enlarged functional capabilities.
1 cl, 15 dwg
FIELD: electronic engineering.
SUBSTANCE: device has data processing circuit, transmitter, commutation unit, endec, receiver, computation unit, and control unit.
EFFECT: high reliability in transmitting data via radio channel.
FIELD: electronic engineering.
SUBSTANCE: method involves building unipolar pulses on each current modulating continuous information signal reading of or on each pulse or some continuous pulse sequence of modulating continuous information code group. The number of pulses, their duration, amplitude and time relations are selected from permissible approximation error of given spectral value and formed sequence parameters are modulated.
EFFECT: reduced inetrsymbol interference; high data transmission speed.
16 cl, 8 dwg
FIELD: communication system transceivers.
SUBSTANCE: transceiver 80 has digital circuit 86 for converting modulating signals into intermediate-frequency ones. Signal source 114 transmits first periodic reference signal 112 at first frequency. Direct digital synthesizer 84 receives second periodic signal 102 at second frequency from first periodic reference signal. Converter circuit affording frequency increase in digital form functions to convert and raise frequency of modulating signals into intermediate-frequency digital signals using second periodic signal 102. Digital-to-analog converter 82 converts intermediate-frequency digital signals into intermediate-frequency analog signals using first periodic reference signal 112.
EFFECT: reduced power requirement at low noise characteristics.
45 cl, 3 dwg
FIELD: radio engineering; portable composite phase-keyed signal receivers.
SUBSTANCE: proposed receiver has multiplier 4, band filter 6, demodulator 8, weighting coefficient unit 5, adding unit 7, analyzing and control unit 10, synchronizing unit 3, n pseudorandom sequence generators 21 through 2n, decoder 1, and switch unit 9. Receiver also has narrow-band noise suppression unit made in the form of transversal filter. Novelty is that this unit is transferred to correlator reference signal channel, reference signal being stationary periodic signal acting in absence of noise and having unmodulated harmonic components that can be rejected by filters of simpler design than those used for rejecting frequency band of input signal and noise mixture. Group of synchronized pseudorandom sequence generators used instead of delay line does not need in-service tuning.
EFFECT: facilitated realization of narrow-band noise suppression unit; simplified design of rejection filters.
1 cl, 8 dwg
FIELD: mobile radio communication systems.
SUBSTANCE: proposed method and device are intended to control transmission power levels for plurality of various data streams transferred from at least one base station to mobile one in mobile radio communication system. First and second data streams are transmitted from base station and received by mobile station. Power-control instruction stream is generated in mobile station in compliance with first or second data stream received. Power control signal is shaped in mobile station from first power control instruction stream and transferred to base station. Received power control instruction stream is produced from power control signal received by base station; power transmission levels of first and second data streams coming from base station are controlled in compliance with power control instruction stream received. In this way control is effected of transmission power levels of first data stream transferred from each base station out of first active set to mobile station and of transmission power levels of second data stream which is transferred from each base station out of second active set to mobile station.
EFFECT: enlarged functional capabilities.
80 cl, 21 dwg
FIELD: radio engineering.
SUBSTANCE: proposed method and device designed for fast synchronization of signal in wade-band code-division multiple access (WCDMA) system involve use of accumulations of variable-length samples, testing of decoder estimates for reliability, and concurrent decoding of plurality of sync signals in PERCH channel. Receiver accumulates samples required for reliable estimation of time interval synchronization. As long as time interval synchronization estimates have not passed reliability tests, samples are accumulated for frame synchronization estimates. As long as frame synchronization estimates have not passed reliability tests, samples are analyzed to determine channel pilot signal shift.
EFFECT: reduced time for pulling into synchronism.
13 cl, 9 dwg
FIELD: satellite navigation systems and may be used at construction of imitators of signals of satellite navigational system GLONASS and pseudo-satellites.
SUBSTANCE: for this purpose two oscillators of a lettered frequency and of a fixed frequency are used. Mode includes successive fulfillment of the following operations - generation of a stabilized lettered frequency, its multiplication with an oscillator's fixed frequency and filtration of lateral multipliers with means of filters of L1 and L2 ranges and corresponding option of a fixed and a lettered frequencies.
EFFECT: reduces phase noise and ensures synthesizing of lettered frequencies of L1 and L2 ranges of satellite navigational system from one supporting generator at minimum number of analogous super high frequency units.
3 cl, 1 dwg