Method and apparatus for dynamic control of power spectral density for transmitting pilot symbols and data symbols

FIELD: information technology.

SUBSTANCE: power spectral density of a pilot symbol or data symbol is controlled for transmission over an uplink of a mobile station in a wireless network by determining power spectral density of at least one data symbol and pilot symbol based on the peak-to-average ratio (PAR) of at least one data symbol and pilot symbol. The power spectral density of at least one data symbol and pilot symbol is then dynamically controlled based on the difference between the PAR of the data symbol and PAR of the pilot symbol. The pilot symbol and data symbol signal the receiving side of the uplink transmission on changes in the power spectral density. If acceptable for the receiving side, the pilot symbol and data symbol are transmitted to the receiving side of the uplink transmission.

EFFECT: evaluation of a direct communication line from a return communication line, which enables an access point to extract the amplification coefficient for creating the directional pattern for transmission over the direct communication line when multiple antennae are available at the access point.

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Claiming priority under §119 Section 35, United States Code

[0001] This patent application claims the priority of provisional application No. 60/864,342 "A METHOD AND APPARATUS FOR TRANSMIT PSD ADJUSTMENT FOR E-UTRA UL", and No. 60/888,905 "TRANSMIT PSD ADJUSTMENT FOR E-UTRA UL", filed November 3, 2006 and February 8, 2007, respectively, both provided to the applicant of the present application and hereby expressly incorporated by reference.

The technical field,

[0002] the Present invention generally relates to wireless communications, and more specifically to dynamic adjustment of the spectral power density.

The level of technology

[0003] wireless communication Systems are widely deployed to provide various types of communication content such as voice, data, and so forth. These systems may be multiple access systems capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth and transmit power). Examples of such multiple access systems include a system of multiple access, code division multiple access (CDMA)systems, multiple access with time division multiplexing (TDMA)systems, multiple access frequency division multiple access (FDMA)systems, orthogonal FDMA (OFDMA) and FDMA system with a single carrier (SC-FDMA).

[0004] Typically, b is spravochnaya communication system with multiple access can simultaneously maintain currency for multiple wireless terminals. Each terminal communicates with one or more base stations via the transmission on the forward and reverse links. Direct link (or downward communication refers to the communication line from the base stations to the terminals, and the reverse link (or upward communication refers to the communication line from terminals to base stations. This line of communication can be established through a system of "one input - one output, multiple input - single output or multiple inputs - multiple outputs (MIMO).

[0005] the MIMO System employs multiple (Nr) transmit antennas and multiple (NR) receiving antennas for data transmission. A MIMO channel formed by NTtransmitting and NRa reception antenna, can be divided into NSindependent channels, which are also referred to as spatial channels, where NS≤ min {NTNR}. Each of the NSindependent channels corresponds to a dimension. The MIMO system can provide improved performance (e.g., higher throughput and/or greater reliability)if the additional dimension (dimension), created multiple transmitting and receiving antennas.

[0006] the System supports MIMO systems with full-duplex communication with time division (TDD) and systems with full-duplex communication with the frequency split is m (FDD). In the transmission line and the return line are in the same frequency region so that the principle of mutual influence allowed an assessment of the direct channel of the communication line of the channel of the reverse link. This allows the access point to extract the gain beam forming to transmit in a straight line, when multiple antennas are available at the access point.

The invention

[0007] One aspect of the disclosure relates to a method for control of the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless network. The method comprises determining the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbol and the pilot symbol and the dynamic adjustment of the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol.

[0008] Another aspect of the disclosure relates to a device for controlling the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless citieslist contains the processor, configured to determine the spectral power density of at least one of the data symbol and the pilot symbol based on PAR at least one of the data symbols and pilot symbols, and module adjustable gain, configured for dynamically adjusting the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol.

[0009] Another aspect of the disclosure relates to a device for controlling the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless network. The device comprises a means for determining the spectral power density of at least one of the data symbol and the pilot symbol based on PAR at least one of the data symbol and the pilot symbol; and means for dynamically adjusting the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol.

[0010] Another aspect of the present invention relates to a computer program product containing machine-readable media. Machine-readable medium includes code to cause the computer to determine the spectral power density of at least one of the data symbol and the pilot symbol based on the PAR of the data symbol, and code to cause the computer to dynamically adjust the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol.

[0011] Another aspect of the present invention relates to a processor that executes commands to control the spectral power density of pilot symbols and data symbols for transmission on the uplink communication with the mobile station in the wireless network. The commands include the determination of the spectral power density of at least one of the data symbol and the pilot symbol based on PAR at least one of the data symbols and pilot symbols, and dynamic adjustment of the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol.

[0012] it is Necessary to understand that the foregoing General description and the following detailed description are exemplary and intended to provide further explanation of the claimed subject matter.

Brief description of drawings

[0013] the Characteristics, the nature and advantages of the present invention will become more apparent from the detailed description given below, together with the drawings, in which similar characters of Eden is officeroute respectively similar elements throughout and in which:

[0014] Fig. 1 is a system diagram of a wireless communication multiple access according to some aspects of the present invention.

[0015] Fig. 2 is a block diagram of elements of the wireless communication system according to some aspects of the present invention.

[0016] Fig. 3 - sequence of operations illustrating a method of controlling the spectral power density of pilot symbols and data symbols for transmission on the uplink communication with the mobile station in a wireless network according to some aspects of the present invention.

[0017] Fig. 4 is an exemplary curve PAR (dB) for QPSK and 16 QAM according to some aspects of the present invention.

[0018] Fig. 5 is an exemplary curve PAR (dB) for QPSK and 64 QAM according to some aspects of the present invention.

[0019] Fig. 6 - sequence of operations illustrating a method of signaling to the receiving party about the changes in the spectral power densities of the pilot symbols and data symbols according to some aspects of the present invention.

[0020] Fig. 7 is a sequence of operations illustrating a method of determining whether spectral power density of pilot symbols and data symbols are acceptable according to some aspects of the present invention.

Detailed description

[0021] In the following detailed description are formulated ones who installed the specific details, in order to ensure full understanding of the invention. It should be apparent, specialists in the field of technology that this entity may be effected without some of these specific details. In other examples, well-known structures and techniques are not shown in detail so as not to obscure the invention.

[0022] the Word "exemplary" is used here to mean "to serve as an example or illustration”. Any aspect or implementation described herein as "exemplary"should not necessarily be construed as preferred or advantageous over the other aspects or variants of implementation.

[0023] the Link below is to the aspects of the invention, examples of which are illustrated in the accompanying drawings, in which similar reference items refer to the same elements throughout the description.

[0024] Fig. 1 shows a system 10 wireless multiple access according to some aspects of the present invention. The access point 100 includes a group of multiple antennas, one includes 104 and 106, another includes 108 and 110, and an additional group includes 112 and 114. In Fig. 1 only two antennas are shown for each group of antennas, however, more or fewer antennas may be used for each group of antennas. The terminal 116 is of access is in communication with antennas 112 and 114, where antennas 112 and 114 transmit information to the terminal 116 of access in a straight line link 120 and receive information from the terminal 116 access through a return line 118. The terminal 122 of the access is in communication with antennas 106 and 108, where antennas 106 and 108 transmit information to the terminal 122 of the access in a straight line connection 126 and receive information from the terminal 122 to access the return line 124. In the FDD system communication lines 118, 120, 124 and 126 may use different frequency for exchange. For example, a direct communication line 120 may use different frequency once used the reverse link 118 (i.e. the ascending line (UL) 118).

[0025] Each group of antennas and/or the area in which they are intended for exchange, often referred to as a sector of the access point 100. In the embodiment shown in Fig. 1, each group of antennas (e.g. antennas 112 and 114) are designed to communicate with access terminals (e.g., terminal 116 of access in a given sector of the areas covered by access point 100.

[0026] In exchange for direct communication lines 120 and 126 transmit antenna 100 points use the formation of the pattern, in order to improve the signal-to - noise direct lines of communication for different terminals 116 and 122 access. In addition, the access point 100 that uses the formation of a pattern that done the TB transmission to terminals 116 and 122 access scattered randomly across its service area, causes less interference to access terminals (not shown) in adjacent cells (not shown)than the access point 100, transmitting through a single antenna to all its access terminals.

[0027] the access Point 100 may be a fixed station used to communicate with terminals 116 and 122 access, and may also be referred to as a Node B, or some other term. During transmission on the uplink connection, the access point 100 may be referred to as the receiving party. The terminals 116 and 122 can also be called a user equipment (UE), wireless communications devices, terminals, stations, or some other terminology.

[0028] Fig. 2 is a block diagram illustrating an exemplary system 210 of the transmitter (also known as the access point 100) and a receiver system 250 (also known as at least one of the terminals 116 and 120 access) in a MIMO system 200, according to some aspects of the present invention. The system 210 of the transmitter traffic data for a number of data streams issued from the source data 212 CPU 214 data transmission (TX).

[0029] When the transmission on downlink, for example, each data stream is transmitted through the corresponding transmit antenna. The processor 214 data transmission formats, encodes, and punctuates d is installed traffic for each data stream based on a particular coding scheme, selected for that data stream to produce encoded data.

[0030] the Coded data for each data stream may be multiplexed with pilot data using OFDM techniques. Pilot data are usually known data pattern that is processed in a known manner and can be used in the receiver system to estimate the response of the channel. The multiplexed pilot and coded data for each data stream is then modulated (i.e converts symbol) based on a particular modulation scheme (e.g., BPSK, QSPK, M-PSK or M-QAM)selected for that data stream to produce the modulation symbols. The data rate, coding and modulation for each data stream may be determined by instructions executed by the processor 230.

[0031] the modulation Symbols for all data streams are then fed to the processor 220 MIMO TX, which may further process the modulation symbols (e.g., for OFDM). The processor 220 MIMO TX then gives NTstreams of modulation symbols for NTtransmitters (TMTR) 222a-222t. In some embodiments, the implementation of the processor 220 MIMO TX uses the weight of the beam forming the symbols of the data streams and to the antenna from which the symbol.

[0032] Each transmitter 222 receives and processes a respective stream of symbols is fishing, to provide one or more analog signals, and also results in the desired state (e.g., amplifies, filters and converts with increasing frequency), the analog signals to produce a modulated signal suitable for transmission over the MIMO channel. NTmodulated signals from transmitters 222a-222t then transmitted through the NTantennas 224a-224t, respectively.

[0033] the system 250 of the receiver the transmitted modulated signals are received NRantennas 252a-252r and the received signal from each antenna 252 is issued to the appropriate receiver (RCVR) 254a-254r. Each receiver 254 leads to the desired state (e.g., filters, amplifies and converts with decreasing frequency) corresponding to the received signal, digitizes, refer to the specific requirements of the signal to obtain samples, and further processes the samples to provide the transfer of the received stream of symbols.

[0034] the Processor 260 data reception then receives and processes adopted by the NRstreams of characters from the NRreceivers 254 based on the method of processing a specific receiver, to produce the NT"discovered" streams of characters. The processor 260 data reception then demodulates, performs a reverse alternation and decodes each detected character stream to recover the traffic data for this data flow. Obrabotkaponravilos 260 data reception is complementary to the processing, executed by the processor 220 MIMO transmission and the processor 214 of the data transmission in the system 210 of the transmitter.

[0035] the Processor 270 periodically determines which matrix pre-encoding to use (described below). The processor 270 formulates a message back line containing part of the index matrix and part of the value of rank.

[0036] the Message back to the communication line may contain various types of information regarding the communication line and/or the received data stream. Message return line is then processed by the processor 238 data transmission, which also receives traffic data for a number of data streams from a data source 236, modulated by a modulator 280, is provided to the specific requirements of transmitters 254a-254r and transmitted back to the system 210 of the transmitter.

[0037] the system 210 of the transmitter, the modulated signals from the system 250 are accepted by the receiver antennas 224, are provided to the specific requirements of receivers 222, demodulated a demodulator 240, and processed by processor 242 data reception, to extract the message on the reverse link transmitted by the receiver system 250. The processor 230 then determines which matrix pre-coding be used to determine the weight of the beam forming, then processes the extracted message.

[0038] In one aspect is the logical channels are classified into control channels and traffic channels. Logical control channels include a control channel broadcast (BCCH), which is a DL channel (downlink) for broadcasting information management system. Paging control channel (PCCH), which is a DL channel that transfers paging information. Channel management multivisceral (MCCH), which is a DL channel point-to-multipoint, is used to transfer control information and planning services broadcasting and multicasting multimedia (MBMS) for one or more MTCH. Usually after establishing RRC connection this channel is used only by the UE, which receive MBMS (note: old MCCH+MSCH). Dedicated control channel (DCCH) is a bidirectional channel point-to-point, which transmits information of the selected control and uses a UE having a RRC connection. In one aspect, logical traffic channels include a dedicated trafc channel (DTCH), which is a bidirectional channel point-to-point, dedicated to one UE, for the transfer of user information. In addition, the channel traffic multicasting (MTCH) for DL channel point-to-multipoint data traffic.

[0039] In one aspect of the transport channels are classified on the DL (down) and UL (ascending). DL transport channels include a channel broadcasting (BCH), a shared data channel research Institute for agriculture is coming lines (DL-SDCH) and a paging channel (PCH), PCH to support save power UE (DRX cycle is indicated by the network to the UE), broadcasted over entire cell and mapped to PHY (physical) resources that can be used for other channels management/traffic. UL transport channels include a random access channel (RACH), a request channel (REQCH), a shared data channel uplink communication (UL-SDCH) and a plurality of PHY channels. PHY channels contain a set of DL channels and channels UL.

[0040] According to some aspects of the DL PHY channels contain: common pilot channel (CPICH); sync channel (SCH); common control channel (CCCH); shared DL control channel (SDCCH); channel management multivisceral (MCCH); shared UL the destination channel (SUACH); acknowledgement channel (ACKCH); DL physical shared data channel (DL-PSDCH); UL channel power control (UPCCH); channel paging indicator (PICH); and the channel load indicator (LICH). However, the DL PHY is not limited to any specific configuration.

[0041] According to some aspects of the UL PHY channels contain: a physical random access channel (PRACH); channel quality indicator channel (CQICH); acknowledgement channel (ACKCH); channel indicator subset of antennas (ASICH); shared request channel (SREQCH); UL physical shared data channel (UL-PSDCH); and broadband pilot channel (BICH). However, the UL PHY is not limited to any specific configuration.

[0042] Fig. 3 shows the sequence of operations illustrating a method of controlling the spectral power density of pilot symbols and data symbols for transmission on the uplink, the mobile station 116 or 122 in a wireless network according to some aspects of the present invention. The present invention relates to the UL transmission E-UTRA; however, it should be noted that any UL transmission may be used to provide the stated characteristics. LFDM can be selected as the signal transmission due to its advantages peak to average (PAR). According to the technical requirements of E-UTRA, QPSK and 16 QAM are the basic modulation schemes for data transmission. In addition, however, can use 64 QAM for users with high ratios of signal to noise ratio (SNR). Sequence constant envelope, such as a sequence of Zadoff-Chu, for example, can be selected as the pilot sequence. According to some aspects of the pilot signal and the data is transmitted in TDM each potcake, where the pilot signal typically takes two short LFDM symbol, and the data occupies six characters long LFDM. Of course, the present invention is not limited to the configuration described above, and the usual expert it is clear that there may be implementing the Vanir different methods.

[0043] At step 300, the terminal 116 of access, for example, determines the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) data symbols, in relation to a specific transmission schemes used by the terminal 116 access. The spectral power density is defined so that it is within the maximum power defined by the linear region of the power amplifier system 10 wireless. Therefore, the spectral power density of the character data, for example, decreases the adjustable digital amplifier module (not shown) in the terminal 116 of access so that the difference between the maximum power (within the linear region of a power amplifier and the spectral power density of the symbol data was at least equal to the PAR of the data symbol, for example.

[0044] step 300, the process continues to step 310, at which the spectral power density of at least one pilot channel and the data channel is dynamically adjustable based on the difference between the PAR of the pilot symbol and the PAR of the data symbol. For pilot-symbol if you are using polyphase sequence, such as sequence Zadoff-Chu, for example, the pilot sequence may have a constant envelope in the time. In the PAR drank the t symbol is 0 dB. Therefore, in this case, the loss of output power of the amplifier is much more attenuated due to the properties of the constant envelope sequences Zadoff-Chu. The spectral power density of the pilot symbol can be increased by using an adjustable digital amplifier module on the difference between the PAR of the data symbol and PAR of the pilot symbol so that the spectral power density of pilot-symbol was well within the linear region of the amplifier. If, for example, the transmitted spectral power density of the stack of pilot symbols increases by 4-5 dB, it can greatly improve the estimation of the channel for a limited Suite of users around the boundaries of the coverage area of the wireless network, resulting in greater coverage area of the system or the total capacity of the sector.

[0045] the PAR of the data symbol, for example, is obtained from the lookup table in the memory 272 terminal 116 of access on the basis of the respective modulation schemes. Fig. 4 shows an exemplary curve PAR (dB) for QPSK and 16 QAM according to some aspects of the present invention. Reference position 400, 410, 420, 430 and 440 show curves PAR for LFDM - 16 QAM, LFDM - QPSK, LFDM - permutation, OFDM - 16 QAM and OFDM - QPSK, respectively. Fig. 5 depicts an exemplary curve PAR (dB) for QPSK and 64 QAM according to some aspects of the present invention. Reference position 500, 510, 520, 530 and 540 curves show PAR LFDM - 64 QAM, LFDM - QPSK, LFDM - permutation, OFDM - 64QAM, and OFDM - QPSK, respectively.

[0046] for Example, as shown in Fig. 4 and 5, for users SIMO: QPSK: 1 % PAR for QPSK is 4.5 dB (reference position 410); 16 QAM: if 1 % of PAR for 16 QAM is 5.1 dB (reference position 400); 64 QAM: if 1 % of PAR for 64 QAM is 5.3 dB (reference position 500). For user MIMO: PAR values for QPSK and 16 QAM remain the same if no permutation is applied to the threads of the multiple antennas; and PAR is 4.8 dB, if the rearrangement of antennas is applied to the threads QPSK and 16 QAM. The terminal 116 is a priori knowledge of these values, given curves PAR, and stores the corresponding PAR values in the lookup table. Using these PAR values, the processor 270 determines changes in the spectral power density for the data symbols and pilot symbols by using the process described above.

[0047] Using the UL transmission of E-UTRA, for example, there are two different numerology UL, which can usually be seen. First, according to the aspect may be 4 short tutu pilot signal TDM, long and 12 packs of TDM data in each 1 MS identification terminal transfer (TTI). With this configuration, the spectral power density of pilot symbols and data symbols can be adjusted to 8 times during the TTI. Secondly, according to the aspect may be 2 long tutu pilot signal TDM and 12 long packs the data is TDM in each 1 MS TTI. In this configuration, the spectral power density of pilot symbols and data symbols can be adjusted only four times during the TTI. Of course, these numerology UL are just examples, and can be used any other numerology.

[0048] According to some aspects from stage 310, the process continues to step 320, where about changes in the spectral power densities of pilot symbols and data symbols signal receiving side (for example, the access point 100). The transmitted spectral power density for the pilot symbols and data symbols are calculated on the basis of the level of spectral power density reference signal and adjusting the Delta spectral power density (that is, changes in the spectral power density) relative to the level of the spectral power density of the reference signal. Thus, the terminal 116 may know the spectral power density of the reference symbol used by the access point 100.

[0049] Fig. 6 shows the sequence of operations illustrating a method of signaling changes in the spectral power densities of the pilot symbols and data symbols to the access point 100 (as described above with reference to Fig. 3), according to some aspects of the present invention. At step 600, the processor 270 in the terminal 166 of access determines the spectral density improvement is ü power reference signal, used by the access point 100. According to some aspects can be two potential candidate for the reference signal: the CQI channel, which is transmitted every 2 MS, where QPSK modulation is used for the CQI channel; or a broadband pilot signal which is transmitted every 10 MS. Sequence with a constant envelope, such as a sequence of Zadoff-Chu can be used as a broadband pilot sequence. Of course, the present invention is not limited to these two reference signals by candidates and can be used by other control signals to achieve the desired characteristics. When an accurate reference signal is known to the terminal 116 of access, its power spectral density is known, because it is stored in the memory 272.

[0050] to determine the power spectral density of the reference signal terminal 116 of the first access determines which reference signal is used by the access point 100. As one example, the reference signal may be consistent across an entire wireless network and, thus, the terminal 116 access always knows about the technical requirements of the reference signal. As another example, if CQI and wideband pilot signals utilized as reference signals, but it is the same for all terminals 116 of access within the sector, t is the reference signal can be transmitted in the BCH. As another example, if CQI and wideband pilot signals are used as reference signals for different terminals 116 of access in a given sector (for example, using different reference signals depending on the user's speed), the reference signal may be indicated by alarm L3.

[0051] From step 600, the process continues to step 610, where calculate the corresponding changes in the spectral power densities of the pilot symbols and data symbols. The change in the spectral power density of pilot symbol is determined based on the difference between the spectral power density of the pilot symbol and the spectral power density of the reference signal and the change in the spectral power density of the data symbol is determined based on the difference between the spectral power density of the symbol data and the spectral power density of the reference signal.

[0052] step 610, the process continues to step 620, where the calculated corresponding changes in the spectral power densities of pilot symbols and data symbols are transmitted to the access point 100.

[0053] Returning to Fig. 3, step 320, the process proceeds to step 330, where the pilot symbol and the data symbol is transmitted to the access point 100.

[0054] Fig. 7 depicts the sequence of operations illustrating a method of determining t is Auda if the spectral power density of pilot symbols and data symbols are acceptable according to some aspects of the present invention. After changes in the spectral power densities of pilot symbols and data symbols are flagged (reported) to the access point 100 (as indicated by the reference position 320 in Fig. 3), the process may proceed to step 325, where the access point 100 determines whether the spectral power density of pilot symbols and data symbols are acceptable. Criteria for determining whether the pilot signal and the data symbols are acceptable, can include not exceed the total transmit power of a predefined value set by the requirements of the terminal 116, access, or maintenance of the work area within the range of linear operation of the amplifier power.

[0055] If the adjusted spectral power density of pilot symbols and data symbols are acceptable, then the process proceeds to step 330, and the pilot signal and the data symbols transmitted to the access point 100, as described above. If the access point 100 determines that the spectral power density are not acceptable, the process returns to step 300 to determine a new power spectral density of the symbol data, and the process according to Fig. 3 continues, as described above.

[0056] Although the above example is based on the determination of the spectral power density of the symbol data and the dynamic adjustment of the spectral energy density is the particular power of the pilot symbol based on the difference between the PAR value of pilot symbols and data symbols, expert it is clear that the opposite can also occur. Thus, the spectral power density of the pilot symbol can be defined, and the spectral power density of the symbol data may be dynamically adjustable based on the difference between the PAR value of pilot symbols and data symbols.

[0057] For UL transmission E-UTRA network coverage is determined by marginal users that transmit at peak power and still may not be able to close the communication line. For those users with low SNR estimation of the channel may dominate the efficiency of the communication line.

[0058] Additional flexibility in adjusting the transmitted spectral power density of pilot-symbol allows for the possibility of increasing the T2P for regional users, without violating the constraint loss of output power of the power amplifier. Taking advantage of the PAR sequence Zadoff-Chu selected for the pilot signal, for example, can also increase the spectral power density of the pilot signal so that the data and the pilot signal fully utilize the power amplifier. Improved estimation of the channel can help regional users to achieve the best efficiency of the communication line and results in increasing coverage.

[0059] it Should be clear that the specific order or hierarchy of steps in the processing disclosed above are examples of exemplary approaches. Based on the preferences option implementation assumes that the specific order or hierarchy of steps in the processes may be modified while remaining within the framework of the present invention. The attached claims on the way to represent the elements of the various stages in a typical manner and are not intended to limit the specific order or hierarchy.

[0060] the Specialists understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and signal elements that can be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0061] the Specialists it is also clear that the various illustrative logical modules, circuits, and algorithms described with references to embodiments of disclosed herein may be implemented as electronic hardware, software or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps b which Lee described above generally in terms of their functionality. Implemented such functionality as hardware or software depends upon the particular application and design constraints imposed on the full system. Specialists can implement the described functionality in different ways for each particular application, but such implementation decisions should not be interpreted as a deviation from the scope of the present invention.

[0062] the Various illustrative logical blocks, modules, and circuits described with reference to the disclosure may be implemented or executed by the General purpose processor, a digital signal processor (DSP), a specialized integrated circuit (ASIC), programmable gate array (FPGA) or other programmable logic device, logic, discrete logic elements or transistors, discrete hardware components, or any combination designed to perform the functions described in the present description. General-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, the combination of DSP and micro is rocessor, many microprocessors, one or more microprocessors with a DSP core, or any other such configuration.

[0063] the Steps of a method or algorithm described in the above disclosure may be embodied directly in hardware, in a software module executed by a processor, or combinations thereof. A software module can reside in RAM memory, flash memory, ROM, programmable ROM, EEPROM, registers, hard disk, removable disk, CD-ROM or media data of any other shape known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from and write information to the data carrier. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in specialized integrated circuits. Specialized integrated circuits may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

[0064] the Previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to this aspect of the m will be readily apparent to experts in the field of technology and the generic principles defined herein may be applied to other aspects without departing from the disclosure. Thus, the present invention is not intended to be limited to the aspects shown here, but must get the widest scope consistent with the principles and new features disclosed here.

1. The method of controlling the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless network, and the method comprises:
the determination of the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbols and pilot symbols (300); and
dynamic adjustment of the spectral power density of at least one pilot symbol and data symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol (310).

2. The method according to claim 1, additionally containing obtaining the PAR of the data symbol and PAR of the pilot symbol from the lookup table based on the modulation scheme (400-440 or 500-540).

3. The method according to claim 1, further containing signaling changes in the spectral power densities of the pilot symbols and data symbols to the receiving side of the transmission on the uplink connection (320).

4. With whom persons according to claim 1, additionally contains the transmission of pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (330).

5. The method according to claim 3, in which the alarm contains:
the definition of the reference signal from the host (600);
the calculation of the corresponding changes in the spectral power densities of the pilot symbol and the data symbol on the basis of the spectral power density of the reference signal (610); and
transfer the calculated corresponding changes to the receiving party (620).

6. The method according to claim 5, in which the reference signal is a channel quality indicator channel (CQI) and quadrature-phase modulation (QPSK).

7. The method according to claim 5, in which the reference signal is a broadband pilot signal.

8. The method according to claim 5, in which the reference signal is determined using the broadcasting channel radio (VSN), and if the quality indicator channel (CQI) and a broadband pilot signals are used as the reference signal in a wireless network, but only one is used within the sector.

9. The method according to claim 5, in which the reference signal is determined by the signaling Protocol of the network layer (L3), if CQI and wideband pilot signals are used as the reference signal in the sector.

10. The method according to claim 5, in which the reference signal is consistent across the wireless network.

11. The method according to claim 1, additionally aderrasi determination by the receiving party, whether spectral power density of pilot symbols and data symbols are acceptable for transfer (325).

12. Device to control the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless network, comprising:
the processor is configured to determine the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbols and pilot symbols (270); and
adjustable amplification module configured for dynamically adjusting the spectral power density of at least one pilot symbol and data symbol on the basis of the difference between the PAR of the data symbol and PAR of the pilot symbol (270).

13. The device according to item 12, in which the PAR of the data symbol and PAR of the pilot symbol is obtained from the lookup table based on the schema (272) modulation.

14. The device according to item 12, optionally containing a transmitter, configured for signalling changes in the spectral power densities of the pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (254).

15. The device according to item 12, optionally containing a transmitter configured to transmit the pilot symbol and the symbol is and data to the receiving side of the transmission on the uplink communication (254).

16. The device according to 14, further comprising:
the processor is configured to determine the reference signal from the host and compute the corresponding changes in the spectral power densities of the pilot symbols and data symbols, based on the spectral power density of the reference signal (270); and
a transmitter configured to transmit the calculated corresponding changes to the receiving side (254).

17. The device according to clause 16, in which the reference signal is a channel quality indicator channel (CQI) and quadrature-phase modulation (QPSK).

18. The device according to clause 16, in which the reference signal is a broadband pilot signal.

19. The device according to clause 16, in which the reference signal is determined using the broadcasting channel radio (VSN), if CQI and wideband pilot signals are used as the reference signal in a wireless network, but only one is used within the sector.

20. The device according to clause 16, in which the reference signal is determined by the signaling Protocol of the network layer (L3), if CQI and wideband pilot signals are used as the reference signal in the sector.

21. The device according to clause 16, in which the reference signal is consistent across the wireless network.

22. The device according to item 12, which additionally contains the module definition in the receiving side, configure is consistent to determine whether spectral power density of pilot symbols and data symbols are acceptable for transfer (230).

23. Machine-readable media that stores computer program product for performing the method of controlling the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless network, and computer program product contains:
code to cause the computer to determine the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbols and pilot symbols (300); and
code to cause the computer to dynamically adjust the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol (310).

24. Machine-readable media according to item 23, in which the PAR of the data symbol and PAR of the pilot symbol is obtained from the lookup table based on the modulation scheme (400-440 or 500-540).

25. Machine-readable media according to item 23, further containing code to signal the changes in the spectral power densities of the pilot symbols and data symbols to the receiving coronaviridae upward communication (320).

26. Machine-readable media according to item 23, further containing code for transmitting pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (330).

27. Machine-readable media on p. 25, further comprising: code to determine the reference signal from the host and to calculate the corresponding changes in the spectral power densities of the pilot symbol and the data symbol on the basis of the spectral power density of the reference signal (600-610);
and code for transmitting the calculated corresponding changes to the receiving side (620).

28. Machine-readable media according to item 27, in which the reference signal is a channel quality indicator channel (CQI) and quadrature-phase modulation (QPSK).

29. Machine-readable media according to item 27, in which the reference signal is a broadband pilot signal.

30. Machine-readable media according to item 27, in which the reference signal is determined using the broadcasting channel radio (VSN), if CQI and wideband pilot signals are used as the reference signal in a wireless network, but only one is used within the sector.

31. Machine-readable media according to item 27, in which the reference signal is determined by the signaling Protocol of the network layer (L3), if CQI and wideband pilot-si is Nala is used as the reference signal in the sector.

32. Machine-readable media according to item 27, in which the reference signal is consistent across the wireless network.

33. Machine-readable media according to item 23, further containing code for determining at the receiving side, whether the spectral power density of pilot symbols and data symbols are acceptable for transfer (325).

34. A processor that executes commands to control the spectral power density of pilot symbols and data symbols for transmission on uplink by a mobile station in a wireless network, and the commands include:
the determination of the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbols and pilot symbols (300); and
dynamic adjustment of the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol (310).

35. The processor 34, in which the PAR of the data symbol and PAR of the pilot symbol is obtained from the lookup table based on the modulation scheme (400-440 or 500-540).

36. The processor 34, which also contain transfer for signalling changes in the spectral power densities of the pilot symbol and cingolani to the receiving side of the transmission on the uplink connection (320).

37. The processor 34, which also contain the transmission of pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (330).

38. The processor on p, which also contain:
the definition of the reference signal from the host and calculate the corresponding changes in the spectral power densities of the pilot symbol and the data symbol on the basis of the spectral power density of the reference signal (600-610); and
transfer the calculated corresponding changes to the receiving side (620).

39. The processor according to § 38, in which the reference signal is a channel quality indicator channel (CQI) and quadrature-phase modulation (QPSK).

40. The processor according to § 38, in which the reference signal is a broadband pilot signal.

41. The processor according to § 38, in which the reference signal is determined using the broadcasting channel radio (VSN), if CQI and wideband pilot signals are used as the reference signal in a wireless network, but only one is used within the sector.

42. The processor according to § 38, in which the reference signal is determined by the signaling Protocol of the network layer (L3), if CQI and wideband pilot signals are used as the reference signal in the sector.

43. The processor according to § 38, in which the reference signal is consistent across the wireless network.

44. rocessor on clause 34, which also contain the definition in the receiving side, whether the spectral power density of pilot symbols and data symbols are acceptable for transfer (325).

45. Device to control the spectral power density of pilot symbols and data symbols for transmission on the uplink of the mobile station in a wireless network, comprising:
means for determining the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbols and pilot symbols (270); and
means for dynamically adjusting the spectral power density of at least one pilot symbol and data symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol (270).

46. The device according to item 45, in which the PAR of the data symbol and PAR of the pilot symbol is obtained from the lookup table based on the modulation scheme (400-440 or 500-540).

47. The device according to item 45, further containing a means for transmitting signal changes in the spectral power densities of the pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (254).

48. The device according to item 45, further containing a means for transmitting pilot symbols and data symbols to the receiving side of the transmission is in the ascending line (254).

49. The device according to p, further comprising: a means for determining the reference signal from the host and compute the corresponding changes in the spectral power densities of the pilot symbol and the data symbol on the basis of the spectral power density of the reference signal (270); and means for transmitting the calculated corresponding changes to the receiving side (254).

50. The device according to § 49, in which the reference signal is a channel quality indicator channel (CQI) and quadrature-phase modulation (QPSK).

51. The device according to § 49, in which the reference signal is a broadband pilot signal.

52. The device according to § 49, in which the reference signal is determined using the broadcasting channel radio (VSN), if CQI and wideband pilot signals are used as the reference signal in a wireless network, but only one is used within the sector.

53. The device according to § 49, in which the reference signal is determined by the signaling Protocol of the network layer (L3), if CQI and wideband pilot signals are used as the reference signal in the sector.

54. The device according to § 49, in which the reference signal is consistent across the wireless network.

55. The device according to item 45, further containing a means for determining at the receiving side, whether the spectral power density pilot with whom mwala and character data are acceptable for transfer (230).

56. System to control the spectral power density of pilot symbols and data symbols for transmission on the uplink of the mobile station in a wireless network, comprising:
the processor is configured to determine the spectral power density of at least one of the data symbol and the pilot symbol based on the peak-to-average (PAR) at least one of the data symbols and pilot symbols (270); and
adjustable amplification module configured for dynamically adjusting the spectral power density of at least one of the data symbol and the pilot symbol based on the difference between the PAR of the data symbol and PAR of the pilot symbol (270).

57. System p, in which the PAR of the data symbol and PAR of the pilot symbol is obtained from the lookup table based on the modulation scheme (400-440 or 500-540).

58. System p, optionally containing a transmitter, configured for signalling changes in the spectral power densities of the pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (254).

59. System p, optionally containing a transmitter configured to transmit the pilot symbols and data symbols to the receiving side of the transmission on the uplink communication (254).

60. System § 58, further comprising: %who quarrels, configured to determine the reference signal from the host and compute the corresponding changes in the spectral power densities of the pilot symbol and the data symbol on the basis of the spectral power density of the reference signal (270); and a transmitter configured to transmit the calculated corresponding changes to the receiving side (254).

61. System p, in which the reference signal is a channel quality indicator channel (CQI) and quadrature-phase modulation (QPSK).

62. System p, in which the reference signal is a broadband pilot signal.

63. System p, in which the reference signal is determined using the broadcasting channel radio (VSN), if CQI and wideband pilot signals are used as the reference signal in a wireless network, but only one is used within the sector.

64. System p, in which the reference signal is determined by the signaling Protocol of the network layer (L3), if CQI and wideband pilot signals are used as the reference signal in the sector.

65. System p, in which the reference signal is consistent across the wireless network.

66. System p additionally contains the module definition in the receiving side, configured to determine whether the spectral power density of pilot-symbol the symbol data is acceptable for transmission (230).



 

Same patents:

FIELD: radio engineering.

SUBSTANCE: in the wireless transmission device, the module for determining data display determines a method of displaying data in accordance with given information tmax, and the data display module maps data onto signals coming from a modulation module in accordance with the data display method, defined by the module for determining data display. The module for determining data display receives information tmax transmitted from a party taking part in a communication session, and determines display of vital information such as: control channel, systematic bit, reception bit, ACK/NACK (ACK or NACK) information, CQI (channel quality indicator), TFCI (transportation format combination indicator), information required for modulation, pilot symbol, power control bit etc, on data from their tail end to the part corresponding to the position.

EFFECT: efficient use of transmission power, where the reception quality of the transmitted signal can be improved through efficient use of a cyclic prefix.

4 cl, 27 dwg

FIELD: information technology.

SUBSTANCE: method involves reception of at least two pilot signals from an access network (AN) over at least two direct traffic transmission channels, transmission of at least two channel quality information at one return carrier to the AN, which are at least one of the level and quality of each corresponding direct channel for the pilot signal. Channel quality information denotes the desired data transmission speed for receiving data over the corresponding direct traffic channel, and receiving feedback information over the direct control channel of the AN. The feedback information includes channel quality composite information, which indicates whether the AN is capable of receiving multiple channel quality information transmitted by an access terminal (AT) at one return carrier.

EFFECT: efficient operation of the wireless communication system by simplifying or reducing the volume of assistance traffic with respect to signal transmission.

8 cl, 5 dwg

FIELD: information technology.

SUBSTANCE: cell search is facilitated by user equipment (UE) in a wireless communication system. In one version, a primary synchronisation code (PSC) sequence may be generated based on a Frank sequence and a constant amplitude sequence which is repeated multiple times. In another version, a set of PSC sequences may be generated based on complementary sequences having good aperiodic correlation properties and efficient implementations. In another version, PSC sequences A+B and B+A may be formed based on Golay complementary sequences A and B, there "+" denotes concatenation. In yet another version, a set of secondary synchronisation code (SSC) sequences may be generated based on a set of base sequences and different modulation symbols of a modulation scheme. Each base sequence may be modulated by each of M possible modulation symbols for the modulation scheme to obtain M different SSC sequences.

EFFECT: shorter cell search time in a wireless communication system.

38 cl, 21 dwg

FIELD: information technology.

SUBSTANCE: based on the method used in a wireless communication system (WiMAX), where in order to identify a transmitter with a receiver, the most probable successful radiated power (C) is calculated in order to provide faster identification of the transmitter by the receiver, a method is disclosed which, based on the calculated radiated power, the allowable maximum (D) and allowable minimum (E) radiated power is given. In that case, at the initial moment, radiated power (G) is controlled, which is less than the calculated radiated power (C) and higher than the given allowable minimum radiated power (E). The radiated power is then increased in form of steps (F) gradually until attaining given allowable maximum radiated power (D). Upon attaining the given allowable maximum radiated power (D), the radiated power is gradually increased in form of steps (F) from the given allowable minimum radiated power (E) to the given allowable maximum radiated power and further until the transmitter is identified or when no additional operations are performed.

EFFECT: high accuracy of identifying a transmitter.

10 cl, 1 dwg

FIELD: information technology.

SUBSTANCE: device has a transmission control unit, a reception control unit, a communication channel. The transmission control unit has a binary code generator on the transmitting point, a comparator circuit, an output register, a memory device, a transmission end decoder, an address counter, five OR elements, a binary pulse generator, a first clock pulse generator, two AND elements, two flip flops. The reception control unit has a binary code generator on the receiving point, an OR element, an address counter, a memory device for the receiving point, a reception end decoder, a former, an integrating circuit, a flip flop, an AND element and a clock pulse generator.

EFFECT: reduced load on the communication channel.

2 cl, 2 dwg

FIELD: information technology.

SUBSTANCE: in a mobile communication system, having a single control channel and several common channels and having a network which periodically sends control information over the control channel, the following takes place: periodic reception of the control channel; detection of a common channel identifier in the received control channel at a defined time; and reception of data over a separate common channel which is specified by control information which includes that detected identifier.

EFFECT: minimisation of data length generated during transmission and reception of data, and minimisation of consumption of the energy of the accumulator of the mobile terminal.

18 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: in a mobile communication system, having a single control channel and several common channels and having a network which periodically sends control information over the control channel, the following takes place: periodic reception of the control channel; detection of a common channel identifier in the received control channel at a defined time; and reception of data over a separate common channel which is specified by control information which includes that detected identifier.

EFFECT: minimisation of data length generated during transmission and reception of data, and minimisation of consumption of the energy of the accumulator of the mobile terminal.

18 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: variable inductance coil has inductance value that can be switched between two or more values. It includes multiple-loop primary inductance coil which is electromagnetically connected to pair of secondary inductance coils. The latter are connected to each other to form closed loop within the limits of which they have variable topology switched between series and parallel connections to change inductance value, which is provided with multiple-loop primary inductance coil.

EFFECT: enlarging control range.

21 cl, 15 dwg

FIELD: information technology.

SUBSTANCE: method involves the following steps: receiving a communication efficiency parametre; if the communication efficiency parametre is equal to a predetermined value or exceeds the predetermined value, the first transmitter-receiver pair and the second transmitter-receiver pair use a predefined communication standard during communication, where determination of the predefined communication standard is carried out on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. A predefined bit table and a gain table are provided on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. According to the described method, in case of high broad-band noise, fast switching to the predefined bit table and gain table can be provided using a simple message or "request-response" mechanism. Use of this method avoids the need to exchange bit tables and gain tables.

EFFECT: avoiding wastage of channel capacity.

17 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: method involves the following steps: receiving a communication efficiency parametre; if the communication efficiency parametre is equal to a predetermined value or exceeds the predetermined value, the first transmitter-receiver pair and the second transmitter-receiver pair use a predefined communication standard during communication, where determination of the predefined communication standard is carried out on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. A predefined bit table and a gain table are provided on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. According to the described method, in case of high broad-band noise, fast switching to the predefined bit table and gain table can be provided using a simple message or "request-response" mechanism. Use of this method avoids the need to exchange bit tables and gain tables.

EFFECT: avoiding wastage of channel capacity.

17 cl, 7 dwg

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.

4 dwg

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

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