Method and device for suppression of oscillations between repeaters

FIELD: information technologies.

SUBSTANCE: first repeater operating in a wireless network, comprising the second repeater, which may communicate with the first repeater, and the first and second wireless stations, which may communicate with at least one of the first repeater and the second repeater, comprises a reception device to receive a wireless signal at the reception frequency; a detection facility to detect, whether the specified part of the received wireless signal includes a varied part, so that therefore it is identified that the received signal arrives from the second repeater; and a transfer device for transfer of a wireless signal to one of the first and second wireless stations at the transfer frequency, thus for repetition of the wireless signal.

EFFECT: configuration of the repeater for reduction of oscillations between two or more repeaters or sections of repeaters.

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REFERENCE TO RELATED APPLICATIONS

This application is related in relation to pending provisional application U.S. No. 60/846,073, filed on September 21, 2006, pursuant to which priority is claimed for this application, and is also related with regard to the following documents: a publication of the patent application U.S. No. 2006-0041680 (application U.S. No. 10/530,546) Proctor and others, entitled ”REDUCING LOOP EFFECTS IN A WIRELESS LOCAL AREA NETWORK REPEATER”; and published application U.S. No. 2005-0286448 (application U.S. No. 10/516,327 or international application number PCT/US03/16208) Procter and other, which is entitled ”WIRELESS LOCAL AREA NETWORK REPEATER”, the entire contents of which are incorporated herein by reference.

The technical FIELD TO WHICH the INVENTION RELATES.

The invention relates in General to a repeater for a wireless communication network, and more particularly to a configuration of the repeater to reduce oscillations between two or more repeaters or sections of repeaters.

The LEVEL of TECHNOLOGY

Usually the service area of a wireless communication network, such as, for example, the wireless network-based full-duplex communication with time division (TDD), full duplex frequency division (FDD), communication "exact wireless data transmission" (Wi-Fi)connection, "international interoperability for microwave access (Wi-max), cellular, global system is we for mobile communications (GSM), multiple access code division (CDMA) or 3G (third generation)can be increased by using repeaters. Approximate repeaters include, for example, the repeaters frequency conversion or repeaters with the same frequency, which work on the physical level or at the level of the transmission control data, as defined by the basic reference model of open systems interaction (OSI model).

Repeaters are also used to meet the increased demand for expansion of scope nodes such as access points, associated with wireless networks, which include, but are not limited to, wireless local area network (WLAN) and wireless city local area network (WMAN), described and defined in the standards of the Institute of engineers on electrical and electronics (IEEE) 802.11, 802.16 and 802.20, due to the increasing popularity of unlimited access to broadband services, for example, by the portable computing device. Effective rapid quantitative growth of wireless networks strongly depends on the continuous and increasing level of performance when the number of user requests.

However, when multiple repeaters occupy the same RF environment, you may experience problems such as fluctuations (oscillat and between repeaters. Fluctuations can lead to a large number of problems, such as distortion, saturation, loss of sync and loss of data or information.

In addition, you need to address the issue of "scalability" of many closely spaced repeaters. For example, when the repeaters are deployed in the immediate vicinity of a residential building with multiple tenants, the effective service area may become so big that it will cause a "flood" of packages. Although the service area is greatly increased, may be ineffective because of the limited capacity for large number of users.

There is therefore a need for cheap and low-risk solutions to such problems of vibrations. Preferably, the solution should be extensible to provide more opportunities than simply prevent oscillation when the multiple repeaters.

DISCLOSURE of INVENTIONS

In view of the above problems repeater operating in a wireless network according to different variants of implementation, suppresses fluctuations in such a way that it does not repeat the main signal from another repeater in a wireless network in a state of oscillation. The wireless network may include a second repeater, which can communicate with the first repeater, and Pervoye second wireless station, such as an access point and a wireless computing device that can communicate with at least one of the first repeater and the second repeater.

According to different variants of implementation, the repeater includes a receiver unit for receiving a wireless signal on the receive frequency; detection means for detecting, does it include the specified portion of the received wireless signal changed portion, to thereby determine that the received signal comes from the second repeater; and a transmission device for transmitting wireless signal in one of first and second wireless stations on the transmission frequency, and thus to repeat the wireless signal.

If the specified portion of the received wireless signal includes the changed portion, the transmission device can be performed with the opportunity not to repeat the main part of the wireless signal, to transmit the wireless signal at a frequency different from the frequency transfer, or transmit the wireless signal at a power level that is different from the original power level.

The repeater may further include a unit change signal to change the wireless signal. The device changes the signal may be, for example, the processor marks made with the possibility of the introduction of the sample labels in the wireless signal, want to send, and for detection of the sample marks entered in the wireless signal as a modified part.

The device changes the signal may also be, for example, device a two-phase modulation is performed with the phase modulation of a given part of the wireless signal. Two-phase modulator can modulate the specified portion of the wireless signal so that it had a unique signature, identifiable by the second repeater after receiving the modified wireless signal. The filter surface acoustic wave (saw, SAW) can be associated with the output of the Biphase modulator for removing the blurring of the spectrum of the modified wireless signal. The timing circuit may also be associated with two-phase modulator to control the length of time during which the phase modulator modulates the phase of a given part of the wireless signal.

Two-phase modulator may include a switch connected to the input of a linear oscillator (LO), and the said switch switches the positive and negative inputs LO at a given frequency to modulate the phase of a given part of the wireless signal.

The repeater may further include a removal device changes, such as a demodulation device that is designed on the I remove the modified parts of a given part of the wireless signal.

A transmission device configured to transmit or not to transmit a wireless signal, if the specified portion of the received wireless signal includes a modified part.

The specified portion of the received wireless signal may be a preamble of the wireless signal, and a modified part can be specified by changing the phase.

The discovery tool may be further configured to detect whether the wireless signal transmitted from one of the first and second wireless stations, using the process of the selection of detection for a received wireless signal. The selection process of detection may include a comparison of the preamble of a received wireless signal with a given sample signal or the demodulation of one of the given information sequence, channel pilot signal and the carrier pilot signal.

The repeater can be one of the repeater with frequency conversion, in which the transmission frequency and the reception frequency are different, and repeater on the same frequency, in which the transmission frequency and the reception frequency are the same.

The repeater may also include a processor and memory connected to the processor. Subroutine adjust the power to configure the CPU may be stored in memory. Processor b is to be executed with the ability to create packages test message, which must be transmitted to the second repeater, the transmit frequency; measuring the indicator of received signal strength (RSSI) of the packet received in response to the test message packets; determining whether the loss in the transmission path, defined by the difference between the power level at which the transferred blocks of the test message, and the measured RSSI value, the smaller the set value; and mark the transmission frequency as unavailable for use, if the losses in the transmission path is less than the specified values.

The processor may be further configured to create a group of packets which must be transmitted to the second repeater, the transmit frequency, if the losses in the transmission path is not less than approximately 80 dB; determining the average RSSI value for the group of packets; and if the average RSSI is less than the specified level, then mark the existing power transmission as appropriate.

The processor may be further configured to adjust the current transmission power decrease to a certain level in decibels, if the average RSSI is not less than the specified level; re-creating the group of packets which must be transmitted to the second repeater, the transmit frequency; determining the average RSSI value for the group of packets; and if ednie RSSI value is less than the specified level, then mark the existing power transmission as appropriate.

Additional detection capability, which include repeaters, can provide detection of the preamble to the phase-modulated sequence and additional links. For example, it may be desirable to packets from some repeaters can be repeated, while packets from other repeaters - not to repeat. Another example is that provide the ability to repeat only packets with a certain signature, and all other filtered. Other actions may include placing packets with a unique signature on a unique frequency, and the signature can act as a function of the addressing code quality of service or priority code.

BRIEF DESCRIPTION of DRAWINGS

Accompanying drawings, in which same reference items refer to identical or functionally similar elements for individual species and which, together with the following detailed description is included in the description and are part of it, serve to further illustrate various embodiments and explain various principles and advantages in accordance with the present invention.

Fig. 1A-1B are an illustration of a test configuration and snapshot ek is Ana, showing the test results associated with an approximate configuration of repeaters to expand the range of direct sequence spread spectrum (DSSS) without phase modulation and mode enabled "WLAN only".

Fig. 2A-2B is an illustration of a test configuration and a screen shot showing the test results associated with an approximate configuration of repeaters DSSS with phase modulation and mode enabled "WLAN only".

Fig. 3A-3B are an illustration of a test configuration and a screen shot showing the test results associated with an approximate configuration of repeaters DSSS with phase modulation and off mode "WLAN only".

Fig. 4A-4B are an illustration of a test configuration and a screen shot showing an additional test results associated with an approximate configuration of repeaters DSSS in Fig. 3 with phase modulation and off mode "WLAN only".

Fig. 5A-5B are an illustration of a test configuration and a screen shot showing the test results associated with an approximate configuration of repeaters multiplexing orthogonal frequency division (OFDM) without phase modulation and mode enabled "WLAN only".

Fig. 6A-6B are an illustration of a test configuration and a screen shot showing the test results associated with an approximate configuration of the repeater is OFDM with phase modulation and mode enabled "WLAN only".

Fig. 7A-7B are an illustration of a test configuration and a screen shot showing the test results associated with an approximate configuration of repeaters OFDM with phase modulation and off mode "WLAN only".

Fig. 8A-8B are an illustration of a test configuration and frame spectrum analyzer showing the output signal of the signal generator without phase modulation.

Fig. 9A-9B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the signal generator OFDM with phase modulation.

Fig. 10A-10B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the signal generator OFDM with phase modulation and filter on surface acoustic wave (saw) with low losses.

Fig. 11A-11B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the signal generator OFDM with phase modulation and filter surfactants with low loss and filter surfactants with high suppression.

Fig. 12A-12B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the DSSS signal without phase modulation.

Fig. 13A-13B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the signal generator is Ala DSSS with phase modulation.

Fig. 14A-14B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the DSSS signal with phase modulation and filter surfactants with low losses.

Fig. 15A-15B is an illustration of a test configuration and frame spectrum analyzer showing the output signal of the DSSS signal with phase modulation, filter surfactants with low loss and filter surfactants with high suppression.

Fig. 16 is a structural diagram showing an exemplary wireless network configuration that includes two exemplary repeater.

Fig. 17 is a connection diagram showing the possible connections that can be established between the approximate repeaters, AP and the mobile station in the WLAN.

Fig. 18A is a schematic drawing showing an exemplary repeater in accordance with an exemplary embodiment.

Fig. 18B is a schematic drawing showing an exemplary repeater in accordance with another exemplary embodiment.

Fig. 19 is an exemplary diagram for schema synchronization.

Fig. 20 is an exemplary diagram of a two-phase modulator.

Fig. 21 is a structural diagram of an exemplary processor tag.

Fig. 22 is an illustration of exemplary implementations of the label.

Fig. 23 is a sequence of operations showing the approximate signal processing detection of the label.

Fig. 24 is a sequence showing an exemplary routine power control to suppress vibrations.

The IMPLEMENTATION of the INVENTION

In General terms, the present description relates to the configuration of the repeater to suppress oscillations. This disclosure provide for additional explanation sufficient best of embodiments of the present invention. Relative terms such as first and second, and the like, if applicable, are used solely to distinguish one object, item, or action from another, without mandatory requirements or meaning of any actual dependencies between these objects, items, or actions, or the order in which they are located. It should be noted that some of the options for implementation may include multiple processes or stages that can be performed in any order, if it is clearly and are not necessarily limited to the specific order; that is, the processes or steps that are not constrained in this way, can be performed in any order.

In the embodiment of mostly invented functionality and invented many of the principles of their best to provide with the help of computer instructions (software) or integrated circuits (IC) and/or special is specialised IP. It is expected that professionals, notwithstanding possibly significant effort and many choices of design, motivated, for example, available time, current technology, and economic considerations, guided by open concepts and principles can easily create such teams software or IP with a minimal amount of research. Therefore, in the interest of brevity and minimization of any risk of shading principles and concepts according to the present invention, further discussion of such software and ICS, if it exists, will be limited thereby necessary that refers to the principles and concepts used in exemplary embodiments of the implementation.

According Fig. 16, the connection 101 for global communication, which may be, for example, the connection of the Ethernet standard, line, standard T1, broadband wireless connection or any other electrical connection, providing route data, you can connect to a wireless gateway, or access point (AP) 100. The wireless gateway 100 sends RF (radio frequency) signals, such as, for example, packages of IEEE 802.11 or signals based on the technology of Bluetooth, Hyperlan, or other wireless protocols, client devices 104, 105, which may be personal the computers, pocket personal computers or any other devices that can communicate with other devices via one of the above wireless protocols. The wireless gateway, AP or client device referred to in this work as a wireless station. Relevant routes of spread, or RF routes to each of the client devices 104, 105 are shown as 102, 103.

Although the signals transmitted by the RF route 102 have sufficient power to establish a high-speed packet data between client device 104 and the wireless gateway 100, the signals transmitted by the RF route 103 and intended for the client device 105 will be attenuated when passing through structural barriers, such as walls 106 or 107, to the point where only accept a small number of data packets, or not accept, in any direction, if there is no wireless repeater 200, 204.

To increase the service area and/or speed data while communicating with the client device 105, the wireless repeater 200, 204 receive the packets transmitted on the primary frequency channel 201 from the wireless gateway 100, access point, or another repeater. Wireless repeater 200 detects the presence of a package on the ground h the frequency channel 201 and receives a packet and retransmits the packet with more power on the second frequency channel 202. Similarly, a wireless repeater 204 detects the presence of a packet on the second frequency channel 202, receives the above packet and re-transmits the above package with more power on the third frequency channel 203. Unlike protocols typical WLAN client device 105 operates at a third frequency channel, even though the wireless gateway 100 operates on the first frequency channel 203. To perform the operation of returning the package wireless repeater 204 detects the presence of a transmitted from the client device 105 packet on the second frequency channel 203, receives the above packet on the second frequency channel 203 and re-transmits the above-mentioned packet on the second frequency channel 202. Wireless repeater 200 detects the presence of a transmitted from the wireless repeater 204 packet on the second frequency channel 202, receives the above packet on the second frequency channel 202 and re-transmits the above-mentioned packet on the first frequency channel 201. The wireless gateway 100 then receives a packet on the first frequency channel 201. Thus, the wireless repeater 200, 204 may simultaneously receive and transmit signals, and to increase the coverage and performance of the wireless gateway 100 to the client device 105. When multiple devices are isolated from each other is a, repeaters 200, 204 can additionally act as a wireless bridge, allowing two different groups of devices to communicate, when previously no optimal RF propagation and coverage or, in many cases, no RF propagation and coverage area.

However, as described above, the system of repeaters using frequency conversion can encounter problems, for example, when using the beacon. Accordingly, expansion of the range can be implemented in such systems using repeaters for wireless local area networks, and this may be particularly advantageous for the use of certain protocols, such as, for example, a series of 802.11 protocols, changing the beacon signal so that it reflected the frequency conversion. However, as noted, problems arise when neighboring nodes, use or re-use the converted frequency within the service areas of each other, can set a false connection, which will create problems from one node to another node based on the integrity of the data traffic. False connections can also lead to fluctuations from one repeater to another repeater, when both use the same repeater pairs of frequencies, and can more the positive lead to problems in the system, which cause the total failure of the WLAN environment. Problems also arise with repeaters using the same frequency.

Wireless repeaters 200, 204 convert the packets from the primary frequency channel to another frequency channel, where it can be taken by one or more client devices, such as a station (STA), or the client device 104, or 105, or another repeater. The client device 104 or 105 preferably take the lighthouse, which identifies the 802.11b channel, as appropriate for the communication channel, and receive information packets converted by the repeater 200, 204 from the first channel to the second channel.

Problems of the repeater can occur, however, in an exemplary scenario 300, which is shown in Fig. 17, in which the two repeater R1 320 and R2 330 is configured to service one AP 310, which is located within the service area of both repeaters, for example, through wireless connections 301 and 303. The repeaters R1 320 and R2 330 can also "listen" to the corresponding transmission each other through the connection, for example, through the communication line 302. In an exemplary scenario 300, the only connection is established to the communication device, or station, or STA 340, is the connection 304, which, admittedly, is a line of RF or radio. Problems which arise, when the repeaters R1 320 and R2 330 running on the same pair of channels, such as the repeater channels, etc. When the AP 310 transmits, both R1 and 320, and R2 330 detects the transmission, for example, at the first frequency F1 and re-transmit at the second frequency F2, such as the frequency channel of the repeater. Major problems arise when isolated client station STA 340 transmits at a frequency F2, which, as described above, is the frequency channel of the repeater. R2 330 then repeats the transmission on F1 to the AP 310. R1 320 detects transmission from R2 330 on F1 and tries to re-transmit the detected transmission. If it happens that R1 320 selects F2 as the transmission frequency, a closed circuit is created between R1 320 and R2 330. When a sufficient gain in this RF closed loop may experience fluctuations through, for example, positive feedback that will lead to the fact that any signals intended for the STA 340 connection 304 will be distorted. It should be noted that the above RF loop does not occur if both repeater detect the signal at F1, because as soon as they detect the signal on F1, they turn off their receivers on F2 and then begin repeat on F2.

With reference to Fig. 18A following repeater 1800 to suppress the above-described oscillations according to the first variant implementation. The repeater may be, in the example, repeater with frequency conversion, as discussed above, or a repeater of the same frequency. Repeater 1800 includes first and second antennas (ANTA, ANTB), which serve as devices transmit and receive to transmit and receive signals on the first and second channels. The signal received through one of the first antenna ANTA or the second antenna ANTB, handle with the help of processing elements, such as a low noise amplifier (LNA, LNA), noise filter from the mirror channel (IRF), mixer on field-effect transistors (FETS FET), the filter surface acoustic wave (saw), power, divide and distribute via two different routes signals, for example, using block 1816 separation. One of the routes of the divided signals from block 1816 separation preferably is connected to the logarithmic amplifier 1820 through the amplifier, and the other route is divided signal is preferably connected to the c element 1822 custom gain control (AGC) to adjust the input gain. The first output signal of the logarithmic amplifier 1820, which preferably is a signal representing the envelope of the amplitude of the index of power of the received signal (RSSI)is fed to the control unit item 1822 AGC to adjust the gain control on the processor 1825 and block 1823 comparison for comparing the level of the RSSI signal is given threshold RSSI, received from processor 1825. The second output signal of the logarithmic amplifier 1820 serves to digital demodulator 1824 through various digital elements to perform the detection and demodulation of spread spectrum direct sequence (DSSS) or multiplexing orthogonal frequency division (OFDM) and generation of the internal package. Digital demodulator 1824 can perform this detection, for example, by analyzing the information of the preamble defined for packages DSSS and OFDM WLAN, generally located in the first few characters of packages, such as packages of 802.11. Digital demodulator 1824 or repeater can be fully placed in the configuration "WLAN only", for example, using processor 1825.

The output signal of the block 1823 comparison serves on the generator 1826 sequence (output CMP_A_EN). Block 1823 comparison may output a signal indicating a detection signal when the RSSI is greater than the specified threshold value, thereby indicating that the signal must be repeated. In response to the signal from block 1823 comparison, as well as on other indicators generator 1826 sequence outputs an enable signal (not shown) on the demodulator 1824 to start demodulation signal, and various control output signals that start the physical repetition of the signal. Subsequently, the generator 1826 pic is egovernance will also output a signal to the logic element 1828 "And". The logical element 1828 And also receives an enable signal for the microprocessor of the processor 1825, and outputs an enable signal to the circuit 1830 synchronization if allow the accept signals from generator 1826 sequence, and from the processor 1825. Scheme 1830 synchronization of two-phase modulator (device signal changes) 1832, which receives the output signal from element 1822 through the AGC amplifier 1834 and additional scheme. The approximate scheme for the synchronization circuitry 1830 shown in Fig. 19. PA_EN represents an enable signal from the generator 1826 sequence, and BPSK_EN represents an enable signal from the processor 1825. The signal frequency of 11 MHz is the clock for the circuit 1830 synchronization.

The Biphase modulator 1832 modifies the signal by adding a phase change for modulation, for example, the first few characters of the package that you want to repeat. The Biphase modulator 1832 may include, for example, a switch for switching the differential signal received from the amplifier 1834, to thus add the phase change. The approximate scheme of the two-phase modulator 1832 shown in Fig. 20. The period of time for applying phase modulation to repeat the signal can be corrected by using the schema 1830 synchronization, connected to the output of the block against the deposits (see signals MOD_P and MOD_N that go from the circuit 1830 synchronization). Scheme 1830 synchronization, you can start by locating a match on the block 1823 comparison. When the circuit 1830 synchronization is stopped, can be stopped by switching the positive and negative inputs and can begin normal operation.

The output signal of the two-phase modulator 1832 served on the filter 1836 surfactant removal of any erosion of the spectrum generated by the phase modulation performed a two-phase modulator 1832. The signal can then be transmitted using one of the first or second antenna ANTA, ANTB through the mixer 1838 and additional analog elements to the access point, the wireless station or a client device (wireless station).

According Fig. 18B, in the modification of the first variant implementation, the Biphase modulator 1832 may be associated, for example, with a linear generator 1840 with a frequency of 1056 MHz and an active mixer 1842. The period of time for applying phase modulation to repeat the signal is also adjusted by the scheme 1830 synchronization. The positive and negative inputs of the linear generator 1840 with a frequency of 1056 MHz supplied to the active mixer 1842, you can switch back and forth, for example, with a speed of 5.5 MHz. Switching the positive and negative inputs transmits phase modulation to repeat ignal. When the circuit 1830 synchronization is stopped, can be stopped by switching the positive and negative inputs and can begin normal operation.

During operation of the repeater, when the repeater 1800 is in standard mode "WLAN only", the digital demodulator 1824 (detection tool DSSS/OFDM) will not recognize the packets having the phase of the symbols modulated by another repeater, as the correct WLAN packets, thereby stopping the process of repetition, because existing dependencies phase distorted by the modification signal. Therefore, when the repeater 1800 accepts repeat the signal from such repeater 1800, he will not attempt to repeat the signal. In the results discussed above problem related to the fluctuations can be eliminated.

Additionally, the phase change added to the signal using the two-phase modulator 1832, invisible to wireless stations receiving the modified signal, because the carrier recovery is not performed until, for example, the fifth or sixth character input stream.

In an alternative embodiment, the external phase modulator may preferably be placed after the amplifier 1834. In addition, a simple timer to control the clock with a frequency of 5.5 MHz can be created by dividing existing synchronous the owls, such as sync processor with a frequency of 11 MHz. Additionally, the modification signal can be performed at the output of the mixer 1838, and not the amplifier. However, the output signal of the amplifier 1834 preferably used because of the difficulty of access to the data stream coming out of the modulator, to add a phase in the band unmodulated frequency signals emerging from the modulator. Accordingly, the phase modulator 1832 run or use the matches on the block comparison, or at any time when the generated modulated signal. It should be noted that the modified signal may be a signal generated by the device itself, or the received signal.

With reference to the exemplary scenario 300, shown in Fig. 17, the following discusses the benefits of the follower, which is embodied according to the above various options for implementation. In this case, it is assumed that both repeater R1 320 and R2 330 includes a digital demodulator 1824 and phase modulator 1832, and they both are in the configuration "WLAN only"if the repeaters R1 320 and R2 330 running on the same pair of channels, such as channels AP and repeater when the AP 310 transmits, R1 320 and R2 330 detects the transmission, for example, at the first frequency F1 and re-transmit at the second frequency F2. However, before passing phase modulator 1832 repeater modifies the first NESCO who are symbols of the packets in the transmitted signal. When isolated client station STA 340 transmits at the frequency F2, R2 330 then repeats the transmission at the frequency F1 to the AP 310. R1 320 detects transmission from R2 330 at a frequency F1; however, R1 320 cannot demodulate repeat the signal, because the first few characters include a phase change. Thus, the repeater R2 330 is not re-transmits the detected transmission back to F2 302. Even if you happen to R1 320 select F2 as the transmission frequency, the closed loop will not be installed between R1 320 and R2 330.

An additional advantage of the repeater according to different variants of implementation is that it requires a limited amount or not at all required additional analog, digital circuits, or circuits I / o for the detection phase, because this phase detection is performed by using an existing diagram of a digital modulator OFDM/DSSS. The scheme for generating the phase modulation is extremely simple.

Accordingly, if the magnitude of the phase change intentionally modulate on the first few characters, repeated batch and allowed standard mode "WLAN only", the existing means of detection of DSSS and OFDM will not recognize the packets associated with the phase-modulated symbols, and the right packages WLAN, and the process repeats will be stopped.

The two-phase modulate the 1832 can be modified to perform phase modulation of the preamble so, to each package was a unique signature. This signature may be a unique phase modulation "square wave" with a unique frequency from a set of frequencies or one from a set of orthogonal codes such as Walsh codes or similar codes. Although you do not want the codes are orthogonal, mutually orthogonal location codes, as I believe, provides a more efficient detection of one of the set of codes with greater confidence. Examples of non-orthogonal codes can be codes with low cross-correlation, such as PSH (psevdochumoy) code, gold code, or a sequence of Barker. The use of such codes repeater as a sequence of modulation for the preamble repeatable package provides (as previously indicated) prevention-only mode wireless LAN signal in the same manner as discussed in the following tests.

Additionally, a unique signature can be configured so that the operation of the repeater, receiving the modified signal has been adjusted in accordance with a unique signature. For example, instead of the repeater did not repeat the signal when the signal comprises a phase-modulated preamble, the repeater can be configured to perform alternative actions, t is such as sending wireless signal at frequency different from the original transmission frequency or transmission of the wireless signal at a power level that is different from the original power level, in order to avoid oscillations. In addition, the repeater can be configured to remove the unique signature of the signal. The repeater can be configured to perform such actions in accordance with the execution processor 1825 commands stored in the connected with it a memory.

Additionally, the repeater may use phase modulation in the signal for performing the process of the selection of detection to determine if adopted wireless signal from another repeater or one of the wireless stations. In particular, phase modulation can be compared with the specified pattern signal stored in the memory. If it is determined that the correlation is high, then the repeater may determine that the wireless signal comes from another repeater, and take appropriate action to prevent oscillations. Alternatively, the selection process of detection may include demodulation of one of the given information sequence, channel pilot signal and the carrier pilot signal.

Various tests were performed on the exemplary repeater that verified the correctness discussed above conclusions. To test the search time for the detection of WLAN in the exemplary repeater was programmed from 4 µs to 16 μs. The digital signal is generated using a vector signal generator (VSG)with phase modulation of the first 4 μs and for signal OFDM and DSSS signal. As discussed below, the termination of recurrence was achieved in 100% of cases for the programmed time 4 µs.

Then the mode of operation of an exemplary repeater was changed to "WLAN only" is turned off. The signal was successfully delivered a repeater in 100% of cases, and a vector signal analyzer (VSA) was successfully demodulator repeatable signal that includes phase modulation. As a control signal entered from the phase modulation performed directly using the VSG and when taken out to the VSA, the signal from this direct modulation again successfully demodulator.

The work in the time domain: with reference to Fig. 1-4B will be described in terms of the execution of the tests and associated results for DSSS signals.

In "test#1_DSSS" 1 Mbps DSSS signal is injected without any phase modulation in an exemplary repeater, while the mode is "WLAN only", and measure the output signal. As shown in Fig. 1A-1B, an exemplary repeater repeats the signal, and the demodulator VSA detects the start of frame delimiter (SFD) and the header.

In "test#2_DSSS" 1 Mbps DSSS signal with the two-phase modulation added to the first 4 μs of the signal injected into a sample follower, at the time, as enabled "WLAN only", and measure the output signal. Repeater mode "WLAN only" looking 4 ISS package DSSS or OFDM 802.11g. As shown in Fig. 2A-2B, an exemplary repeater repeats only 4 µs (partial service) and then stops the transfer.

In "test#3_DSSS" 1 Mbps DSSS signal with the two-phase modulation added to the first 4 μs of the signal injected into a sample follower, while the off mode "WLAN only", and measure the output signal. As shown in Fig. 3A-3B, as the only mode, WLAN off, an exemplary repeater repeats the whole package, as it is not looking for the preamble DSSS or OFDM, and VSA detects and demodulates the packet.

In "test#3_DSSS_Zoom" version shown on an enlarged scale test#3_DSSS, in which the phase is added during the first 4 μs. As shown in Fig. 4B, the signal in the time domain looks different during the first 4 μs compared with time after 4 μs.

Referring to Fig. 5A-7B will be described in terms of testing and related results for the OFDM signal.

In "test#1_OFDM" 6 Mbps OFDM signal without any phase modulation is introduced into the approximate repeater mode enabled "WLAN only" and measure the output signal. As shown in Fig. 5A-5B, an exemplary repeater repeats the signal, and the demodulator VSA detects and properly demodulates the signal.

In "test#2_OFDM" 6 Mbps OFDM signal with two-phase m is dulala, added to the first 4 μs of the signal injected into the approximate repeater mode enabled "WLAN only", and measure the output signal. Exemplary repeater mode "WLAN only" looking for within 4 µs signal DSSS or OFDM 802.11g. As shown in Fig. 6A-6B, an exemplary repeater repeats only 4 µs (partial service) and then stops the transfer.

In "test#3_OFDM" 6 Mbps OFDM signal with the two-phase modulation added to the first 4 μs of the signal injected into the approximate repeater mode turned off-only LAN", and measure the output signal. As shown in Fig. 7A-7B, as the only mode, WLAN off, an exemplary repeater repeats the whole package, as it is not looking for the preamble DSSS or OFDM, and VSA detects and demodulates the packet.

Working in the frequency domain: with reference to Fig. 8A-15B will discuss the impact on the spectrum adding phase modulation to the signal for OFDM and DSSS and the shape of the spectrum is passed through a filter intermediate frequency surfactant. The test is performed at a frequency of 594 MHz to determine whether the signal to match or nearly match the mask specified by the 802.11 standard.

With reference to Fig. 8A-11B will be described in terms of testing and related results for the OFDM signal.

In "test#1_OFDM" 6 Mbps OFDM signal without any phase modulation is introduced into the spectrum analyzer. As shown in Fig. 8B, the SG is nomirovanny signal corresponds to the spectral mask of the 802.11g standard.

In "test#2_OFDM" 6 Mbps OFDM signal with phase modulation added to the first 4 μs of the signal injected into the spectrum analyzer. As shown in Fig. 9B, the generated signal does not meet the spectral mask 802.11g due to phase modulation.

In "test#3_OFDM" 6 Mbps OFDM signal with phase modulation added to the first 4 μs of the signal injected into the filter surfactant at 594 MHz and then to the spectrum analyzer. As shown in Fig. 10B, although the signal is almost similar to the mask due to the phase modulation, it meets the spectral mask of the 802.11g standard. It should be noted that when the phase modulator is implemented externally, the signal passes only through the filter of a surfactant with low loss because the Biphase modulator must be added after the amplifier so that phase modulation can also be added to the internal modulator.

In "test#4_OFDM" 6 Mbps OFDM signal with phase modulation added to the first 4 μs of the signal injected into the filter surfactant at 594 MHz low loss and high suppression and then in the spectrum analyzer. As shown in Fig. 11B, although the signal is almost like a mask due to phase modulation, the signal corresponds to the spectral mask of the 802.11g standard. It should be noted that when the phase modulator is implemented internally in the repeater, the signal passes through the filter surfactants and low loss, and high suppression because the two-phase modulation is added to the active interstage mixer.

With reference to Fig. 12A-15B below describes the test conditions and the associated results for DSSS signals. In "test#1_DSSS" 1 Mbps DSSS signal without any phase modulation is introduced into the spectrum analyzer. As shown in Fig. 12B, the generated signal corresponds to the spectral mask 802.11b.

In "test#2_DSSS" 1 Mbps DSSS signal with phase modulation added to the first 4 μs of the signal injected into the spectrum analyzer. As shown in Fig. 13B, the signal no longer meets or almost meets the spectral mask 802.11b due to phase modulation.

In "test#3_DSSS" 1 Mbps DSSS signal with phase modulation added to the first 4 μs of the signal injected into the filter surfactant at 594 MHz low loss and then to the spectrum analyzer. As shown in Fig. 14B, although the signal is almost like a mask due to phase modulation, the signal corresponds to the spectral mask 802.11b.

In "test#4_DSSS" 1 Mbps DSSS signal with phase modulation added to the first 4 μs of the signal injected into the filter surfactant at 594 MHz low loss and high suppression and then in the spectrum analyzer. As shown in Fig. 15B, although the signal is almost similar to the mask due to the phase modulation, it meets the spectral mask 802.11b. It should be noted that when the phase modulation performed internally, the signal passes through the filter surfactants and low what terami, and with high suppression, because the two-phase modulation is added to the active interstage mixer.

Therefore, the repeater comprising a device 1832 two-phase modulation, can completely replicate the signal or not to repeat the signal if the specified portion of the signal includes phase modulation and is located in the "WLAN only". Additionally, the generated modulated signal may correspond to the spectral mask of the 802.11 standard, when the modulated signal passes through one or more filters surfactant. In this case, the two-phase modulator 1832 is the device signal changes.

According Fig. 21, the repeater according to the second variant of implementation may include a processor 2100 labels made with the possibility of introduction of the sample labels in the wireless signal, which must be repeated, and to detect whether the sample labels in a received wireless signal. Repeater 1800 may include a processor 2100 labels, shown in Fig. 18A-18B, as an additional device signal changes and detection devices or instead of the two-phase modulator 1832. As shown in Fig. 22, the sample labels in General is one or more tags starting at a certain time TSTARTand separated by a period of time food is the length of T DURATION. Start time, duration, interval and duration label program and for implementation, and for discovery. Detection of the sample marks determined by setting the coefficients of the matched filter accept the label. Additionally, samples of labels can be different for transmission and reception.

According Fig. 21, the CPU 2100 labels includes part 2102 introduction of labels designed to transmit a signal representing the signal sample label (TX_NOTCH), generator 2104 sequence block 2106 mark detection, for transmitting signals representing the indication about the detected label (RX_NOTCH_DET) and a channel on which the mark has been detected (RX_NOTCH_CHAN), generator 2104 sequence block 2108 comparison intended for receiving input signals (CMP_OUT_A, CMP_OUT_B) from units of comparison across the internal RF interface 2110, and the synchronization signals and reset, and control registers 2112 designed to transmit a signal representing the start time of the introduction of labels TX_NOTCH_START, the control period of the introduction of labels TX_NOTCH_GAP and duration TX_NOTCH_DUR, to block 2102 introduction of the label. Block 2108 compare receives signals representing the voltage RSSI for these two channels, and the synchronization signal from the interface 2113 analog-to-digital Converter (ADC) RSSI, and outputs the signals (RX_HYST_A, RX_HYST_B and RX_ADC_SEL) additional block 2114 detection header for easy adjustment of settings.

The CPU 2100 labels additionally includes registers 2116 control and status intended for output to the node 2106 mark detection signals representing the maximum window matched filter (RX_NOTCH_MFPW1, RX_NOTCH_MFPW2); delay control mark detection (RX_NOTCH_HYST); parameters detection label (RX_NOTCH_PAR1, RX_NOTCH_PAR2, RX_NOTCH_PAR3); and management of the coefficients of the matched filter detection label (RX_NOTCH_MFC0-MFC19). Node 2106 mark detection also outputs a signal representing the state of detection of the label (RX_NOTCH_STATUS), registers 2116 control and status.

According Fig. 22, during operation, the processor 2100 labels can implement one or two short marks in the signal, which must be repeated, after the leading edge CMP_OUT_A or CMP_OUT_B. Generator 2104 sequence applies a label to a repeatable signal whenever TX_NOTCH is 1. An exemplary operation of the processor tag to a mark detection signal will be described in relation to the sequence of operations shown in Fig. 23.

At step 2305 programmable delay perform to generate filtered by delaying the output signals of the block comparison HYST_A, HYST_B and signal ADC_SEL channel selection ADC based on anal the debt output signal of the block comparison CMP_OUT_A, CMP_OUT_B. The signal RXND_HYST_CR is a signal from the control register, which specifies the delay period for CMP_OUT_A, CMP_OUT_B.

At step 2310, the choice of channel RSSI perform, based on the signals HYST_A, HYST_B, and generate a signal ADC_SEL representing the selected channel. At step 2315 signals HYST_A, HYST_B and ADC_SEL are used to control signals MFPW-TMR timer to control the sync detection Windows. Control timer perform, based on the number of synchronization cycles that have elapsed since the start of the service. MFPW_TMR continues to count during a temporary loss of signal, which is shorter than the cycles synchronization RXND_DROPOUT_CR. This failure often occurs during the reception of the sample label in the received signals with low power.

At step 2320 ADC_SEL is used to convert two-channel alternating with RSSI output signal ADC_OUT in single-channel demultiplexing signal ADC_DATA. At step 2325 ADC_DATA process using the nonlinear operation maximum value from 3" to generate ADC_MAX. The signal RXND_MAX_DISABLE_CR is intended to prohibit the use of maximum values of 3 samples.

At step 2330 ADC_MAX process through linear programmable low pass filter of the first level, which leads to a slowly changing value RSSI_AVG, which closely tracks the maximum deviation of bending the setup portion of the received signal. At step 2335 slightly delayed copy of the signal ADC_DATA called RSSI_VAL, subtract from RSSI_AVG to obtain a differential signal (signed) DIFF, which has a strong positive deviation occurs when a label.

At step 2340, the DIFF signal is injected into a 20-taking a programmable coherent filter, and its output signal unsigned MF_SUM limited to the range from 0 to 255. The signal RXND_MFC[0-19]_ENA represents the state of the tap of the matched filter, RXND_MFC[0-19]_SIGN represents the sign of the coefficient tap of the matched filter, and the signal RXND_MFC[0-19]_SHIFT represents the magnitude of the coefficient tap of the matched filter.

At step 2345 signal RSSI_AVG is used to calculate a variable threshold value of the matched filter MF_THRESH based on the values of the control register settings RXND_MFT_CONST_CR, RXND_MFT_SLOPE_CR, and RXND_MFT_MAX_CR.

At step 2350, the detection unit label sets RX_NOTCH_DET 1 and sets RX_NOTCH_CHAN equal ADC_SEL when MF_SUM equals or exceeds MF_THRESH within a narrow time window, defined by control registers RXND_NOM_MFPW_CR and RXND_HWIN_MFPW_CR. Signals RX_NOTCH_DET and RX_NOTCH_CHAN send in the generator 2104 sequence.

Thus, the repeater comprising a processor 2100 labels according to the second variant of implementation, can add the sample labels to repeat the signal and to detect clicks the set of technical documents for the label in the received signal to eliminate the problems discussed above fluctuations. In this case, the CPU 2100 labels is a device signal changes.

According to the third variant of implementation, the repeater, such as the one shown in Fig. 18A-18B repeater 1800, performs routine regulatory power to stop or prevent the occurrence of vibrations of the one or more repeaters. The routine may begin when the repeater 1800 is in discovery mode when determining that another repeater within the wireless network operates on the same frequency channel, as disclosed, for example, in patent publication U.S. No. 2006-0041680. Repeater 1800 may be performed by execution of the subroutine using processor 1825, which performs in-memory 1827 command.

With reference to the flowchart in Fig. 24, sub regulation capacity will be discussed more fully. At step 2405, the repeater transmits the specified number of packets XOS_PROBE_REQUEST and at step 2410 measures the RSSI XOS_PROBE_RESPONSE. Packages can be created, for example, using a digital demodulator 1824 under the control of the processor 1825. Package XOS_PROBE_REQUEST contains the power with which the repeater is sending. The difference between the transmission power and the measured RSSI defines a one-sided loss in the transmission path. At step 2415, the repeater determines whether less or not these losses in the tract of the transmission, than the preset value, such as, for example, 80 dBm (decibels to milliwatts). If the losses in the transmission path is less than 80 dBm (YES at step 2415), then at step 2420, the repeater will celebrate this channel and all channels within the interval 5 channels as unavailable for use, and the routine ends.

If the losses in the transmission path is less than 80 decibels (NO at step 2415), then at step 2425, the repeater transmits a number of packets XOS maximum length (64 bytes). At step 2430 RSSI of each successfully received packet is measured and the average for all packages. Consider that the packet that was not successfully received, the RSSI is equal to 80 dBm. In step 2435, the repeater determines that less or no average RSSI value than the set value in dBm. If the average RSSI is less than the specified value in dBm (YES at step 2435), the routine ends. Thus, detecting the repeater assumes that the current transmit power level is acceptable, and begins normal operation.

If the average RSSI is not less than the specified value in dBm (NO at step 2435), then at step 2440 repeater adjusts the transmit power in the direction of decreasing by 1 dB, and phase 2445 re-transmits a number of packets XOS. At step 2450, the repeater determines that less or no average RSSI value than the set value in dBm. If ednie RSSI value is less than the specified value in dBm (YES at step 2450), the repeater begins normal operation.

If the average RSSI is not less than the specified value in dBm (NO at step 2450), then at step 2455 repeater requests to another repeater(s) on the same channel, the reduced transmit power by 1 dB. At step 2460, the repeater transmits a number of packets XOS. At step 2465 RSSI of each successfully received packet is measured and the average for all packages. At step 2470, the repeater determines that less or no average RSSI value than the set value in dBm. If the average RSSI is less than the specified value in dBm (YES at step 2470), the repeater begins normal operation.

If the average RSSI is still not less than the specified value in dBm (NO at step 2470), the repeater again requests that the other repeater(s) on the same channel, the reduced transmit power by 1 dB. Continue to regulate the output of each repeater 1 dBm in turn to check with service XOS. However, if neonarrative repeater should reduce the transmit power to a value which is less than the specified value, such as, for example, 9 dB, then detecting the repeater requests to another repeater returned to its original capacity transmission, and detecting the repeater can choose a different channel for repetition. The current channel and all Cana is s within the interval 5 channels will be marked as unavailable.

Although the repeater operates on the same channels as the other repeater, repeater, which was included last, includes a monitoring tool that checks the occurrence of oscillations. When oscillations are detected, the repeater performs the same described above routine capacity adjustment (steps 2405-2420).

In addition, during each specified period of time (for example, 20 seconds) controlling the repeater tries to increase its transmit power by 1 dB until then, until it reaches the normal maximum power transfer. Every time power on any repeater increases, carry out the test XOS (steps 2405-2420) to verify that this increase is provided. This improves the operation of each side in the same manner as when the power decreases. When another repeater requires to change the transmission power of the repeater, it can control channel for messages appear XOS_OSCMIT_HEARTBEAT regulatory repeater. If held for a specified period of time, such as, for example, 20 seconds, during which do not accept the message from the controlling repeater, the managed device assumes control of the repeater is no longer working, and restores power to the normal maximum power transfer to the configuration section of the channel.

The above routine can also be applied when more than one repeater perform repetition on the same channels. However, in this case controlling the repeater may choose not to increase the capacity, if it is determined within a certain period of time (for example, 10 seconds)that oscillations will occur if you do.

Thus, the repeater 1800 according to the third variant of implementation can perform routine power control to suppress vibrations with one or more receivers on the same channel within a wireless network.

This disclosure is intended to explain how to create and use different ways of implementation in accordance with the invention and not to limit its true, implicit and explicit the extent and nature. The preceding description is not exhaustive and does not limit the invention to the exact open form. There are various modifications or variations in light of the above teaching. For example, the repeater can be modified so that it has identified a previously repeated packets and perform an action in response to it. Action may be the completion of transmission to suppress fluctuations or permission to perform repetition depending on the detection of specific messages.

Addi is entrusted, the repeater can combine any number of the three discussed above embodiments. Thus, the repeater is not limited to only one option discussed above embodiments. Additionally, as discussed above diagram is only an example embodiment of the above device signal changes. Thus, the device 1832 two-phase modulation and the processor 2100 marks can be realized in different ways up until the specified portion of the signal change to the repeater, receiving a modified signal, took action, different from his usual action of repetition.

Option(s) was(and is) selected(s) and described(s) in order to bring the best example of the principles of the invention and its practical application and to enable professionals to use the invention in various embodiments, implementation and with various modifications that are suited for a specific intended use. All such modifications and variations are within the form of the invention. Different scheme described above can be implemented in discrete circuits or integrated circuits, as required, depending on the implementation. In addition, professionals need to recognize that part of the invention can be implemented in software or in a similar way, and in order to lomati both ways associated with the described content.

1. The first repeater operating in a wireless network, and mentioned the wireless network includes a second repeater, which can communicate with the first repeater, and the first and second wireless stations that can communicate with at least one of the first repeater and the second repeater, the first repeater includes:
a reception device for receiving a wireless signal on the receive frequency;
the detection tool to detect, does it include the specified portion of the received wireless signal as modified by the device to change the signal of the second repeater part, to determine, therefore, is whether a received signal from the second repeater; and
a transmission device for transmitting wireless signal in one of first and second wireless stations on the transmission frequency so to repeat the wireless signal, if the specified portion of the received wireless signal includes a modified part.

2. The first repeater of claim 1, wherein, if the specified portion of the received wireless signal includes the changed portion, the transmission device is configured to not to repeat the main part of the wireless signal.

3. The first repeater of claim 1, wherein, if the specified portion of the received wireless Internet throughout the water signal includes the changed portion, a transmission device configured to perform one of transmitting a wireless signal at a frequency different from the transmission frequency, and transmit the wireless signal at a power level that is different from the original power level.

4. The first repeater according to claim 1, which additionally includes a unit change signal to change the wireless signal.

5. The first repeater according to claim 1, which additionally includes the removal device changes to remove the affected part of a given part of the wireless signal.

6. The first repeater of claim 1, wherein the transmission device is also configured to not transmit the wireless signal, if the specified portion of the received wireless signal does not include the modified part.

7. The first repeater according to claim 1, in which a given part of a received wireless signal is a preamble of the wireless signal, and the modified part is specified phase change.

8. The first repeater of claim 1, wherein the detection means is additionally configured to detect whether the wireless signal transmitted from one of the first and second wireless stations, using the process of the selection of detection for a received wireless signal.

9. The first repeater of claim 8, Kotor is m the process of the selection of detection involves the comparison of the preamble of a received wireless signal with a specified pattern of signal.

10. The first repeater of claim 8, in which the selection process of discovery involves demodulation of one of the given information sequence, channel pilot signal and the carrier pilot signal.

11. The first repeater according to claim 1, which additionally includes a device to change the signal, configured to change a given part of the received wireless signal so that it included the specified phase change, thus inducing a second repeater not to repeat the wireless signal.

12. The first repeater according to claim 1, and referred to the repeater is a repeater with frequency conversion, in which the reception frequency and the transmission frequency is different, and repeater on the same frequency, in which the reception frequency and the transmission frequency are the same.

13. The first repeater according to claim 1, further containing processor labels, which includes a discovery tool, made with the possibility of introduction of the sample labels in the wireless signal that you want to send, and for detection of the sample marks entered in the wireless signal as a modified part.

14. The first repeater according to claim 1, additionally containing:
processor; and
a memory connected to the processor, and the memory is designed to store the subroutine regulirovanie the power to configure the processor;
in which the processor is configured to
to create batches of the test message, which must be transmitted to the second repeater, the transmit frequency;
to measure the index of power of the received signal (RSSI) of the packet received in response to the test message packets;
to determine whether the loss in the transmission path, defined by the difference between the power level at which the transferred blocks of the test message, and the measured RSSI, smaller than the set value; and
to note the frequency of transmission as unavailable for use, if the losses in the transmission path is less than the specified values.

15. The first repeater on 14 in which the processor is additionally configured to
to create a group of packets which must be transmitted to the second repeater, the transmit frequency, if the losses in the transmission path is approximately not less than the specified value;
determine the average RSSI value for the group of packets;
if the average RSSI is less than the specified level, then mark the existing power transmission as appropriate.

16. The first repeater according to § 15, where the processor is additionally configured to
to adjust the current transmission power decrease to a certain level in decibels, if the average RSSI is not less than the specified level;
re-set up, if appropriate the ü a group of packages, which must be transmitted to the second repeater, the transmit frequency;
determine the average RSSI value for the group of packets; and,
if the average RSSI is less than the specified level, then mark the existing power transmission as appropriate.

17. The first repeater operating in a wireless network,
moreover, the aforementioned wireless network includes a second repeater, which can communicate with the first repeater, and the first and second wireless stations that can communicate with at least one of the first repeater and the second repeater, the first repeater includes:
a reception device receiving the wireless signal from one of the second repeater, the first wireless station and a second wireless station;
the detecting device which is connected to the pickup device and the detection device detects whether the received index signal strength (RSSI) of the wireless signal is greater than a specified threshold RSSI;
a digital demodulator coupled to the receiver unit and the detection unit, and referred to the digital demodulator is configured to demodulating the wireless signal, if the detected RSSI value is greater than the specified threshold RSSI;
device signal changes, coupled with what device receiving, moreover, the said device signal changes are made by modifying a given part demodulated wireless signal; and
a transmission device connected to the device to change the signal intended for transmission of the modified wireless signal to one of the second repeater, the first wireless station and the second wireless station.

18. The first repeater on 17, in which the device changes signal includes a phase modulator configured to phase modulation of a given part of the wireless signal.

19. The first repeater on p, in which two-phase modulator is additionally configured to modulate a given part of the wireless signal so that it had a unique signature, identifiable by the second repeater after receiving the modified wireless signal.

20. The first repeater on p, optionally containing a filter for surface acoustic wave (saw)connected to the output of the Biphase modulator designed for removal of erosion of the spectrum of the modified wireless signal.

21. The first repeater on p, optionally containing a synchronization scheme that is connected with the two-phase modulator, and said timing circuit controls the period of time during which dohpaz the first modulator modulates the phase of a given part of the wireless signal, and said timing circuit is activated when the detected RSSI value is greater than the specified threshold RSSI.

22. The first repeater on p, in which two-phase modulator includes a switch, coupled with a linear oscillator (LO), and this switch toggles between positive and negative findings LO at a given frequency for phase modulation of a given part of the wireless signal.

23. The first repeater on 17, in which the digital demodulator additionally made with the possibility
to detect whether the specified portion of the wireless signal modulation gain; and
not to demodulate the main part of the wireless signal, if the specified part of the wireless received signal has a modulation gain, thus urging the first repeater not to repeat the main part of the wireless signal.

24. The first repeater on 17, in which the digital demodulator additionally made with the possibility not to demodulate the wireless signal, if the specified portion of a preamble of the wireless signal has a modulation gain, and digital demodulator is a configuration-only wireless LAN (WLAN)", thus urging the first repeater not to repeat the main part of the wireless signal.

25. The first repeater on 17, in which:
the transmission device is configured to perform one of transmitting the modified wireless signal at a frequency different from a second frequency, and transmit the wireless signal at a different power level, if it is determined that the preamble of a received wireless signal has a phase modulation.

26. The first repeater on 17, in which the digital demodulator is additionally configured to determine whether a preamble of a received wireless signal phase modulation, and to remove the phase modulation.

27. The first repeater on 17, in which the wireless signal includes one or more packages specified according to the standard of the Institute of engineers on electrical and electronics (IEEE) 802.11, in which a given part of the wireless signal is the initial part of the preamble of one or more packages.

28. The first repeater according to item 27, in which the initial part of the preamble is part of the wireless signal, which is not re-using the first and second wireless stations.

29. The first repeater according to item 27, in which the initial part of the preamble are the first four characters of the packet in the wireless signal.

30. The first repeater on 17, in which device the TWT change signal includes a processor tag for introduction of the sample labels in the wireless signal, want to send, and for detection of the sample marks entered in the wireless signal received from the second repeater.

31. The first repeater according to item 27, in which the modified wireless signal corresponds to a spectral mask defined by the IEEE 802.11g standard.

32. The first repeater on p, in which two-phase modulator includes a switch connected to the amplifier in the transmission path of the wireless signal.

33. The first repeater operating in a wireless network, and mentioned the wireless network includes a second repeater, which can communicate with the first repeater, and the first and second wireless stations that can communicate with at least one of the first repeater and the second repeater, the first repeater includes:
the reception device, receiving a wireless signal comprising one or more packets on the receive frequency;
device modification and detection signal which is connected to the pickup device, this device modification and detection signal configured to change a given part of the package, so as to create a modified wireless signal, and detection, does it include the specified portion of the package is a sample of the modified signal;
the transmission device, connect the TES device modification and detection of the signal for transmission of the modified wireless signal to one of the second repeater, the first wireless station and the second wireless station at a given power level and frequency transfer;
a processor that controls the reception device and the transmission device; and
a memory connected to the processor, and the above-mentioned memory is used to store subroutine power control so that the processor configured to
to create batches of the test message, which must be transmitted to the second repeater, the transmit frequency;
to measure the index of received signal strength (RSSI) of the packet received in response to the test message packets; and
to adjust one of the power level or the transmission frequency in accordance with the measured RSSI.

34. The first repeater on p, in which the device modification and detection signal which is connected to the pickup device, includes a processor labels, configured for introduction of the sample labels in the wireless signal that you want to transfer, and detection of the sample marks entered in the wireless signal received from the second repeater.

35. The first repeater on p, in which the device modification and detection signal which is connected to the pickup device, includes:
the device is a two-phase modulation performed by the phase modulation capability of a given part of the wireless signal; and
digital demodu lator, connected to the pickup device, and referred to the digital demodulator configured to determine whether the wireless signal in the sample phase modulation as a modified part.



 

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13 cl, 10 dwg

FIELD: information technologies.

SUBSTANCE: method includes stages, at which the following is carried out: according to the system parameters, which are previously determined by the third object, the first object sends a packet of access authentication request to the second object, then the second object inspects authenticity, whether the signature of the first object is correct, and if yes, the general main key of the second object is calculated; the second object develops a packet of access authentication response and sends it to the first object, then the first object checks authenticity, whether the signature of the access authentication response and the code of message integrity check are correct; if yes, the general main key of the first object is calculated; the first object sends a packet of access authentication confirmation to the second object, the second object inspects authenticity of integrity of the access authentication confirmation packet, if, having passed the authenticity check, the general main key of the first object is matched with the general main key of the second object, access authentication is achieved.

EFFECT: higher reliability of authentication and reduced load at transfer of service signals.

6 cl, 1 dwg

FIELD: information technology.

SUBSTANCE: invention describes methods of sending data traffic and control information in a wireless network. In one configuration, a transmitter (e.g., node B or UE) can perform beam formation for sending data traffic on M layers based on a precoding matrix, where M can greater than or equal to 1. The transmitter can also perform beam formation for sending control information on up to M layers based on the same precoding matrix which was used for data traffic. The transmitter can send data traffic with the formed beam pattern over a first physical channel and can send the control information generated on the beam pattern over a second physical channel. The transmitter can multiplex data traffic with the formed beam pattern and control information with the formed beam pattern using time-division multiplexing (TDM) or frequency-division multiplexing (FDM).

EFFECT: efficient and reliable transmission of control information in order to achieve high throughput.

30 cl, 10 dwg

FIELD: communication.

SUBSTANCE: one of the variants of the realization the calls in multiple service layers can be received by the base station. Calls in the multiple layers may be differentiated on the base of at least one parameter. In one of the variants of realization for the calls in the different layers there are the support of different blocking frequencies, i.e. supporting lower blocking frequencies for the calls in higher layers. In another variant of realization for the call in different layers there can be supported different delays for putting the call into queue, i.e. supporting shorter delays in the queue for higher layers calls.

EFFECT: effective management of the incoming calls.

20 cl, 6 dwg, 3 tbl

FIELD: communication.

SUBSTANCE: method for scheduling resource comprises the following elements: the network element allocates resource for said user equipment for communication; both said user equipment and said network element detect the presence of said silence descriptor packet; the network element determines optimal amount of resource modules to be allocated to said user equipment during data packet transmission period going by the coding speed of abovementioned user equipment, chosen pattern of modulation coding and amount of valid transmissions, network element starts timing, and said user equipment stops using the allocated resource when said silence descriptor packet is detected, when said timing ends or when a request for allocating resource is received from said user equipment before the end of said timing; said network element allocates defined optimal amount of the resource modules of the equipment and said user equipment starts using defined optimal amount of the resource modules, said network element determines the end of the interval for transmitting said silence descriptor packet; and when said user equipment and said network element detect silence descriptor packet, said user equipment stops using defined optimal amount of resource modules while the network element releases defined optimal amount of resource modules.

EFFECT: balance between improved resource use and decreased signaling overload.

18 cl, 6 dwg

FIELD: communication.

SUBSTANCE: transmitter (i.e. node B) sends configuring information that transports the transformation for advertised services of long services identifiers (ID) into short services ID. The transmitter also sends information on planning that transports the transformation of short service ID into radio resources used for planned services in the current period of planning. Short service ID decreases the size of sent information on planning. In another aspect transmitter sends the information that classifies transmitted services and advertised but not transmitted services. Receivers (i.e. UE) can use the information to determine whether to send the request on interested services. In one more aspect the receiver sends configuring information for advertised but not transmitted services. It may, on request from receivers, allow the transmitter start the services faster.

EFFECT: effective support of broadcast group services in the wireless communication system.

18 cl, 19 dwg, 2 tbl

FIELD: information technologies.

SUBSTANCE: method and device are proposed to transfer/receive connection identification (CID) in the communication system. Having detected the necessity to transfer its service, the mobile station (MS) sends a message of service transfer request to the first basic station (BS) that executes connection with MS. When receiving the message of service transfer request, the first BS sends to MS at least one CID to establish the connection with the second BS, to which MS will perform service transfer, together with the message of the service transfer response in response to the message of the service transfer request. MS receives CID by means of the message of the service transfer response.

EFFECT: reduced time delays in communication.

56 cl, 5 dwg, 4 tbl

FIELD: information technologies.

SUBSTANCE: method and device are proposed to transfer/receive connection identification (CID) in the communication system. Having detected the necessity to transfer its service, the mobile station (MS) sends a message of service transfer request to the first basic station (BS) that executes connection with MS. When receiving the message of service transfer request, the first BS sends to MS at least one CID to establish the connection with the second BS, to which MS will perform service transfer, together with the message of the service transfer response in response to the message of the service transfer request. MS receives CID by means of the message of the service transfer response.

EFFECT: reduced time delays in communication.

56 cl, 5 dwg, 4 tbl

FIELD: information technologies.

SUBSTANCE: method is described to transfer a probing reference signal in an upperlink at duplex mode with time-division channelling, where a terminal calculates parameters of resources for transfer of a SRS signal in a time slot UpPTS in compliance with the information on configuration related to the SRS signal in the upperlink. Above parameters contain the initial position of resources in the frequency area, and then the SRS signal is transmitted using resources; at the same time, when the initial position is calculated in the frequency area of resources, the index of the first subcarrier should be identified in the maximum throughput capacity of SRS. The terminal determines the above index with the help of the position in the frequency area of one or more channels of random access, i.e. PRACH channels in the UpPTS time slot. When the PRACH channel includes subcarriers at the lower border of the system throughput capacity, the upper border of the system throughput capacity is applied as the final position of the maximum throughput capacity of SRS, and the initial position of the maximum throughput capacity of SRS is calculated. When the PRACH channels include subcarriers at the upper border of the system throughput capacity, the lower border of the system throughput capacity is applied as the initial position of the maximum throughput capacity of SRS, and then the above index is determined by adding the initial position of the maximum throughput capacity plus the offset parameter configured for the terminal.

EFFECT: making it possible to probe channels for high throughput capacities.

12 cl, 14 dwg, 6 tbl

FIELD: information technologies.

SUBSTANCE: method to control access to a secured network based on three-element authentication of peer-to-peer objects includes the following: first of all, initialisation of reliability collectors and reliability verifier, then implementation of the protocol of three-element authentication of peer-to-peer objects with the help of a network access request initiator, a network access controller and a server of authentication policies at the level of network access control for realisation of double-sided authentication of a user between the initiator of access request and the access controller; if authentication is successful or the local policy requires to perform the process of reliability assessment by the TNC terminal, the TNC server and the server of reliability assessment at the level of assessment trusted to the platform, authentication of peer-to-peer objects for realisation of double-sided authentication of platforms reliability between the initiator of access requests and the access controller; finally, the initiator of access requests and the access controller control the ports by references generated by the terminal of the client TNAC and the terminal of the server TNAC.

EFFECT: improved reliability of access to the secured network.

10 cl, 4 dwg

FIELD: information technologies.

SUBSTANCE: method includes paging of a user's terminal, which is registered in an unloaded switchboard of mobile communication, via a wireless access unit after the unloaded switchboard of mobile communication receives a command of the user's terminal upload; detection of receipt of the paging reception confirmation from the user's terminal by the unloaded mobile communication switchboard, and if the confirmation is received, sending a message to notify that the user's terminal is to be uploaded, and then releasing the current signal connection with the user's terminal.

EFFECT: higher speed of the user's terminal upload, as a result of which mobile communication switchboard maintenance is carried out timely.

13 cl, 10 dwg

FIELD: information technologies.

SUBSTANCE: method includes stages, at which the following is carried out: according to the system parameters, which are previously determined by the third object, the first object sends a packet of access authentication request to the second object, then the second object inspects authenticity, whether the signature of the first object is correct, and if yes, the general main key of the second object is calculated; the second object develops a packet of access authentication response and sends it to the first object, then the first object checks authenticity, whether the signature of the access authentication response and the code of message integrity check are correct; if yes, the general main key of the first object is calculated; the first object sends a packet of access authentication confirmation to the second object, the second object inspects authenticity of integrity of the access authentication confirmation packet, if, having passed the authenticity check, the general main key of the first object is matched with the general main key of the second object, access authentication is achieved.

EFFECT: higher reliability of authentication and reduced load at transfer of service signals.

6 cl, 1 dwg

FIELD: information technology.

SUBSTANCE: invention describes methods of sending data traffic and control information in a wireless network. In one configuration, a transmitter (e.g., node B or UE) can perform beam formation for sending data traffic on M layers based on a precoding matrix, where M can greater than or equal to 1. The transmitter can also perform beam formation for sending control information on up to M layers based on the same precoding matrix which was used for data traffic. The transmitter can send data traffic with the formed beam pattern over a first physical channel and can send the control information generated on the beam pattern over a second physical channel. The transmitter can multiplex data traffic with the formed beam pattern and control information with the formed beam pattern using time-division multiplexing (TDM) or frequency-division multiplexing (FDM).

EFFECT: efficient and reliable transmission of control information in order to achieve high throughput.

30 cl, 10 dwg

FIELD: communication.

SUBSTANCE: one of the variants of the realization the calls in multiple service layers can be received by the base station. Calls in the multiple layers may be differentiated on the base of at least one parameter. In one of the variants of realization for the calls in the different layers there are the support of different blocking frequencies, i.e. supporting lower blocking frequencies for the calls in higher layers. In another variant of realization for the call in different layers there can be supported different delays for putting the call into queue, i.e. supporting shorter delays in the queue for higher layers calls.

EFFECT: effective management of the incoming calls.

20 cl, 6 dwg, 3 tbl

FIELD: communication.

SUBSTANCE: method for scheduling resource comprises the following elements: the network element allocates resource for said user equipment for communication; both said user equipment and said network element detect the presence of said silence descriptor packet; the network element determines optimal amount of resource modules to be allocated to said user equipment during data packet transmission period going by the coding speed of abovementioned user equipment, chosen pattern of modulation coding and amount of valid transmissions, network element starts timing, and said user equipment stops using the allocated resource when said silence descriptor packet is detected, when said timing ends or when a request for allocating resource is received from said user equipment before the end of said timing; said network element allocates defined optimal amount of the resource modules of the equipment and said user equipment starts using defined optimal amount of the resource modules, said network element determines the end of the interval for transmitting said silence descriptor packet; and when said user equipment and said network element detect silence descriptor packet, said user equipment stops using defined optimal amount of resource modules while the network element releases defined optimal amount of resource modules.

EFFECT: balance between improved resource use and decreased signaling overload.

18 cl, 6 dwg

FIELD: communication.

SUBSTANCE: transmitter (i.e. node B) sends configuring information that transports the transformation for advertised services of long services identifiers (ID) into short services ID. The transmitter also sends information on planning that transports the transformation of short service ID into radio resources used for planned services in the current period of planning. Short service ID decreases the size of sent information on planning. In another aspect transmitter sends the information that classifies transmitted services and advertised but not transmitted services. Receivers (i.e. UE) can use the information to determine whether to send the request on interested services. In one more aspect the receiver sends configuring information for advertised but not transmitted services. It may, on request from receivers, allow the transmitter start the services faster.

EFFECT: effective support of broadcast group services in the wireless communication system.

18 cl, 19 dwg, 2 tbl

FIELD: physics; communications.

SUBSTANCE: description is given of a method and device for switching wireless terminal channels. For this, several communication channels with different physical characteristics are supported in the cell of the base station. Each wireless terminal controls several channels and evaluates several channels at the same time, such that, there can be fast switching between channels. Information on the quality of the channel is sent from each wireless terminal to the base station. The wireless terminal or base station selects the channel, based on the evaluated quality of the channel. By supporting several channels and through periodical changes in channels in different implementation alternatives, the time taken before the wireless terminal finds good or suitable channel conditions is minimised, even if the wireless terminal changes position. Several antennae are used at the base station for simultaneous support of several channels, for example, through control of the directional pattern of the antennae.

EFFECT: reduced delays before wireless terminal finds suitable channel conditions.

66 cl, 26 dwg

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