RussianPatents.com
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Method and device to increase noise immunity of receiver. RU patent 2448411. |
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FIELD: radio engineering. SUBSTANCE: device comprises a switch, where a received signal is sent, a shunt resistance, an amplifier and a controller that controls the specified switch. EFFECT: improved noise immunity by variation of noise ratio without deterioration of noise ratio where possible. 16 dwg
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Scheme for power control messages transmission / 2447582 In certain versions, vectorised information can be assigned to interference observed in wireless node. In certain versions, vectorised information can be assigned to shifts of power adjustment. In certain versions, information can be vectorised based on one or more different service quality classes, different assignments within frame, different zones of transposition, different channel distinctions, different locations of wireless node, different channel types, different values of other sector interference and different assignment sizes. In certain versions, wireless node transmits power control message via uplink channel map in assignment message. |
Method and device for lowering expenditures of radio resources associated with intermittent data traffic / 2447581 Method and device are proposed for mode without transmission (TX) for wireless transmission/receive unit (WTRU) and node B, which suspend transmission of power control updates and associated signaling via dedicated uplink and downlink channels. Triggers and signals between WTRU and node B activates and locks mode without TX. Radio communication line is reestablished to resume data transmission when mode without TX is locked, and data can be also transmitted during set transmission possibilities in the mode without TX. |
Method and apparatus for processing primary and secondary synchronisation signals for wireless communication / 2447578 Cell search by user equipment (UE) in a wireless communication system methods are described. In one aspect, 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 aspect, 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 aspect, 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. |
Method of regulating return channel power / 2446573 In the first version, at first interference of the first type is measured (step S600), then interference of the second type is measured (step S605), ratio between results of the first and the second measurements is determined (step S610) and the measured ratio is transmitted to multiple mobile devices (step S615). In the second version, transmitted ratio is received where ratio between interferences of two different types is specified (step S650), power level of transmission over reverse channel is calculated from transmitted ratio which has been received (step S655). In the third version, at first transmission power in the mode of multistation access with orthogonal frequency-division channel multiplexing (OFDMA) is adjusted from the first signals of feedback during transmission in OFDMA mode (step S725), then transmission power in OFDMA mode is adjusted from the second signals of feedback in periods between transmissions in OFDMA mode (step S745). In the fourth version, multiple signals-indicators of interference from various base stations are received (step S805) and from multiple signals-indicators of interference it is determined whether there is necessity to adjust limit of maximum transmission power representing maximum allowable level of transmission power by which it is limited (step S810). |
Control of communication downlink for lte / 2446572 Command of nonperiodic power control can be sent over a downlink to control and/or correct an uplink power level employed by an access terminal. Command of nonperiodic power control can be started by measurement (e.g. received power out of preset allowable margin). Command of nonperiodic power control can include single-bit or multiple- bit correction. Additionally, access terminal can change power level of communication uplink used for next transmissions via communication uplink based on command of nonperiodic power control, when it has been received. Furthermore, independently of whether the command of nonperiodic power control has been received or not currently via communication downlink access terminal can use commands of periodic power control and open loop power control mechanism in order to adjust power level of communication uplink. |
Power offset updating using feedback / 2446571 Feedback method for correction of power control information in broadcast signal which is determined as incorrect is disclosed. This method is implemented via one or more devices which receive broadcast information and relay on it. The device which receives incorrect broadcast information can determine correction to this information and output recommendation for broadcast information source. The source can selectively determine whether to modify broadcast information based on recommendations from one or more devices or not. If broadcast information is modified subsequent devices which receive broadcast information are provided with modified information. If additional changes are necessary subsequent devices can output additional recommended corrections. |
Power adjustment and resource control in ortoghohal wireless systems / 2446570 Method includes determination of relative power in wireless device such as mobile wireless terminal and receive of load parameter in wireless device where load parameter is associated with at least one wireless cell. The method includes adjustment of transmission power of wireless device according to parameter of relative power and load parameter. In other version of realisation transmission power can be adjusted according to parameter of absolute power spectral density. |
Method and device for noise control in communication system / 2446562 Signal contains several frequency steps, and the system contains at least one main sensor and one or more auxiliary sensors. The method contains at least following stages: one or several protective bands are introduced between useful signal bands with frequency jump, where total area of introduced protective bands is selected so that to satisfy the selected value of probability of noise intercept. Introduced protective band signals with level exceeding this threshold are selected. Set of weightings of space filtering for each signal stage considering noise correlation matrix plus single noise sources on selected signals. The signals are filtered in the baseband of stage stretched blocks cluster using the set of calculated weightings to generate stretched blocks free from noise. |
Method and system for information transmission / 2446561 Data being transferred by transmitter is represented as digital signal, and this signal is converted into ultra-broadband signal by spectrum broadening and is transmitted to read and/or write module through user body via capacitive or resistive connection. |
Accelerated synchronisation device of noise-like signal receiver with minimum frequency manipulation / 2446560 Device includes analogue-to-digital converter, phase synchronisation unit including phase discriminator of noise-like signals with minimum frequency manipulation, loop filter, synthesiser of carrier frequency counts and control unit of noise bandwidth of the device with loop filter, as well as code synchronisation unit including coherent time discriminator of noise-like signals with minimum frequency manipulation, loop filter, controlled clock frequency generator, code generator, decoder and synthesiser of counts of reference quadrature signals. |
Method and device to increase noise immunity of receiver / 2448411 Device comprises a switch, where a received signal is sent, a shunt resistance, an amplifier and a controller that controls the specified switch. |
Broadband signal search device / 2244375 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. |
Band filter automatic tuning device / 2248088 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. |
Double-input frequency modulator / 2248090 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. |
Adaptive device for transmitting data / 2248095 Device has data processing circuit, transmitter, commutation unit, endec, receiver, computation unit, and control unit. |
Method and device for increasing communication channel capacity / 2248096 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. |
Effective-equipment transceiver incorporating delta-sigma digital-to-analog converter / 2248665 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. |
Composite phase-keyed signal receiver suppressing narrow-band noise / 2249913 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. |
Controlling power of direct communication line for plurality of data streams transferred to mobile station using shared power control channel / 2249915 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. |
Method and device for fast synchronization in wide-band code-division multiple access system / 2250564 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. |
Mode and arrangement of dual-range synthesizer of a lettered frequency of the satellite navigational system glonass / 2251121 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. |
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