RussianPatents.com
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Multiple carrier acknowledgment signalling. RU patent 2504909. |
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FIELD: radio engineering, communication. SUBSTANCE: as an example of a version of the invention, a method is disclosed for acknowledgment uplink signalling in a multiple-carrier mode at a remote terminal. First, a code word that jointly encodes acknowledgment signalling for at least two carriers from a multiple-carrier codebook that is stored in the remote terminal is determined. The multiple-carrier codebook includes eight code words that are defined to have a single carrier codebook as a sub-codebook of the multiple-carrier codebook, each code word of the eight code words having a length of ten. The multiple-carrier codebook provides a minimum Hamming distance of four among the eight code words. Second, an uplink signalling message that includes the determined code word is transmitted from the remote terminal to a wireless network node. EFFECT: achieving a minimum Hamming distance for a codebook with code words that jointly encode ACK-NACK for multiple carriers. 18 cl, 8 dwg
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Device to generate periodic sequence of symbols that automatically eliminates occurring failures / 2504089 Invention may be used in radio engineering devices using a shaper of periodic sequence of symbols (pseudorandom M-sequence, sequence of Gold symbols, etc.), repair of which is not possible during operation. The invention may be used to control quality of functioning of an onboard measurement system included within a scope of service instruments of spacecrafts or other radio devices. Device to generate a periodical sequence of symbols that automatically clears arising faults, comprises the following: a shaper of periodical sequence of symbols and n reserve shapers of periodical sequence of symbols, where n - integer number ≥1, at the same time each shaper of periodical sequence of symbols includes: a generator of periodic sequence of symbols; a meter of difference of a number N1 of single and a number of N0 zero symbols in the period of the periodical sequence of symbols; a control unit made as capable of disconnection of the shaper of periodical sequence of symbols from a source of power supply in case of a fault and connection of one of reserve shapers of the periodical sequence of symbols, which are in "unloaded" condition to the source of power supply; the secondary source of supply. |
Phase error compensation device and phase error compensation method / 2502196 Phase error compensation device (300, 400) has a first phase error compensation unit (305) and a second phase error compensation unit (200), placed after the first phase error compensation unit (305); the first phase error compensation unit (305) is configured to obtain a first estimated phase error (φpS) of a received signal based on the value of the received signal and a preset value of a pilot signal, shift the phase of the received signal by the value of the first estimated phase error (φpS) and transit the phase-shifted received signal to the second phase error compensation unit (200). |
System and method for modulation and coding scheme adjustment for lte shared data channel / 2501170 Actual number of orthogonal frequency division multiplexing (OFDM) symbols, Nos, used for the shared data channel is determined. A modulation order for transmission of data on the shared data channel is increased when the actual number of OFDM symbols Nos is less than 11 and decreased when Nos is more than 11. A modulation and coding scheme field (Imcs ) of control information of the shared data channel can also be determined. If 0≤IMCs+11-Nos≤28, the modulation order is modified by using a coefficient (IMCs+11-Nos) in a standardised modulation scheme. If it is determined that IMCs+11-Nos<0, the modulation order is set to quadrature phase shift keying (QPSK). If it is determined that IMCs+11-Nos>28, the modulation order is set to 64 quadtrative amplitude modulation (64QAM). |
System for safety risk assessment and management / 2500070 System for safety risk assessment and management consists of series-connected application loading means, a hosting environment, an authorised administrator, a first assessment mechanism, wherein second and third assessment mechanisms are connected to corresponding outputs of the authorised administrator interacting with a user interface; the system further includes series-connected expert data storage unit, risk optimisation mechanism, control mechanism, counteracting mechanism, the output of which is connected to the second input of the authorised administrator; the first, second and third input of the expert data storage unit is connected to the output of the corresponding assessment mechanism. |
Control channel overhead for initiating independent transmission of channel quality indicator / 2497286 Method involves generating a control channel signal containing a transport format and a channel quality indicator trigger for initiating transmission of the channel quality indicator through at least one terminal to a base station, and transmitting the generated control channel signal to at least one terminal; transmitting an aperiodic channel quality information message to the base station without multiplexing the aperiodic channel quality information message with user data, wherein the transport format is predetermined by a format for transmitting user data through at least one terminal to the base station, and the control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base, wherein transmission of the channel quality indicator should be initiated by at least one terminal based on the channel quality indicator trigger signal. |
Control channel signalling using common signalling field for transport format and redundancy version / 2495529 Invention suggests defining a common field for a transport format and redundancy version in control channel information format. According to one approach, the common field is used to jointly encode transport format and redundancy version therein. Furthermore, one shared field is provided in the control channel signal that indicates either a transport format or a redundancy version depending of whether the control channel signal relates to an initial transmission or a retransmission. |
Method and apparatus for controlling and multiplexing data in mimo communication system / 2495528 Device conducting uplink MIMO communication in a wireless communication system can multiplex control signalling and data across one or more of a plurality of layers (e.g., corresponding to spatial layers, codewords, etc.) associated with an uplink transmission. Techniques are described herein for selecting layers of a transmission on which to schedule control signalling and selecting offsets to apply to the control signalling scheduled on selected layers. Further, techniques are described herein for leveraging a multi-layer transmission to increase efficiency of acknowledgement communication. In addition, techniques are described for selecting a modulation and coding scheme (MCS) to apply to control signalling that is combined with data in an uplink multi-layer transmission. |
Increasing reliability of hybrid automatic repeat request protocol / 2493656 Problem of false ACK detection when no ACK/NACK signal is transmitted by a user terminal is solved by varying the reliability of the scheduling information transmitted to the user terminal on a downlink control channel depending on whether the user terminal is expected to use a first or second uplink channel for sending ACK/NACK feedback. If the user terminal is expected to use the first channel to send ACK/NACK feedback, the base station transmits scheduling information to the user terminal with normal reliability. If the user terminal is expected to send ACK/NACK feedback on the second uplink channel, the base station transmits the signalling information with high reliability. The reliability of the signalling information can be increased, for example, by increasing the transmission power on the downlink control channel, increasing the aggregation level, or a combination thereof. |
Spatial interference mitigation schemes for wireless communication / 2493655 In one model, a cell may receive precoding information from a first user equipment (UE) communicating with the cell and spatial feedback information (SFI) from a second UE not communicating with the cell. The cell may select a precoding matrix based on the precoding information and the SFI. The precoding matrix may direct a transmission towards the first UE and away from the second UE. The cell may send a reference signal based on the precoding matrix, send a resource quality information (RQI) request to the first UE, receive RQI determined by the first UE based on the reference signal, and determine a modulation and coding scheme (MCS) based on the RQI. The cell may then send a data transmission to the first UE with the precoding matrix and in accordance with the MCS. |
Method and apparatus for packet transmission using crc and equal length packets / 2491732 PDCAB packet (300) and a RRA packet (308) are transmitted together on the F-SCCH. For example, 9 RRA bits (305) are attached to the PDCAB field (303), in place of the pad bits (205), thereby allowing both the PDCAB (303) and RRA (311) messages to be protected from errors by a 16-bit CRC (307). A receiver is able to distinguish between the varying PDCAB (303) and RRA (305) message formats and transmitting the packets (300) and (308) together is a normal mode of operation. Therefore, when the PDCAB packet (300) and RRA packet (308) are transmitted together, the network replaces the N PDCAB pad bits, such as pad bits (205), with the first N bits from the RRA bitmap (311), in order to use the nominal CRC length for both packets (300) and (308). |
Device and method for sending and receiving information for detection of errors in communications system / 2258314 Device has multiple cascade registers and multiple adders. During receipt of control information series operator forms a series of check connection bits and sends it to adders. After finishing of receipt operator serially adds given input bit to output bits of last register and outputs a result. Source value controller sends to registers a value selected from two source values. |
Method for message transmission in feedback-incorporating system / 2259636 On sending end of communication system data burst is coded by noise-immune code, service information is added to this code and transferred to communication channel. On receiving end frame synchronization of information sequence is made, noise-immune code is separated and decoded. Results of decoding are used to evaluate probability of message reception, and parameters characterizing quality of communication channel are determined. Channel quality is evaluated by average error probability per bit in communication channel and by error grouping coefficient; new length of data burst is chosen considering highest increase in speed of useful information transfer through communication channel. |
Method for transferring information with use of adaptive alternation / 2265960 Method includes continuously controlling quality of communication channel, on basis of results of which value of depth of alternation of word symbols of interference-resistant code is selected, interference-resistant code symbols alternation, interference-resistant code words and information packet, composed of symbols of several interference-resistant code words is transferred to communication channel, on receiving side symbols are shifted back as they were and words of interference-resistant code are reproduced, while average number of errors in interference-resistant code words is estimated, and selective dispersion of errors number in interference-resistant code words of received information packet is determined, and after receiving another information packet alteration of previous value of alternation depth is performed on basis of deviation of selective dispersion of errors allocation in words of received information packet from dispersion of binomial allocation law. |
Turbo-decoding device and method / 2273093 High-speed buffer memory is disposed between receiver buffer memory and turbo-decoding device and operates at same frequency as turbo-decoding device; decoding device reads out information bits stored in receiver buffer memory through high-speed buffer memory, enters delay for read-out information-bits for time required by turbo-decoding device, and then sends delayed information bits to decoding device including flexible input and flexible output of data incorporated in turbo-decoding device; information bit output is effected by receiver buffer memory at operating or clock frequency of turbo-decoding device. |
Method and device for determining data transfer resources available for network connections / 2273958 For determining amount of resources for data transfer and/or speeds of bits transfer for network connection, with known physical length of cable, measurement of energy spectrum is performed depending on transmission frequency for different types of modems by means of power measuring device, weakening is determined for different physical lengths and thicknesses of cable wires, depending on parameter of cross interference, number of sources and correcting coefficient on bass of energetic spectrum noise level is determined, while by means of gauss transformer module on basis of efficient signal levels and appropriate noise levels amount of data transfer resource is determined for different data transfer modulations and/or modulating codes for predetermined bit transfer speed, then available data transfer resource amount is corrected by means of correcting coefficient, including average deviation of stored amounts of data transfer resources from efficiency amounts of resources of data transfer, and on basis of stored efficient recourses for data transfer with utilization of known physical length of determined network connection available data transfer resource for appropriate network connection is determined. |
Method for improved detection of speed errors in receivers with varying speed and device for realization of said method / 2284664 In the method, frames are found for which data transfer speeds have been determined incorrectly, and processing is performed, providing for erasing of frames and/or clearing of memory to prevent expansion of distortion among multiple frames. Frames with erratically determined speeds of data transfer are found by checking unsanctioned transitions from one speed to another and reserve bits, confirming correctness of unused combinations of bits for filter and analyzing connections between transfer coefficients of fixed encoding table and transfer coefficients for linear prediction. |
Symbol interlacing method / 2292654 Method includes selection of operation mode in transmitter from at least one mode, while each operation mode is associated with a number of active carriers for transferring useful data, selection of interlacing symbol in aforementioned selected operation mode, usage of symbol interlacing in transmitter in relation with data element blocks, display of interlaced elements of data on active carriers of aforementioned selected operation mode, receipt of interlaced data elements in receiver, recognition in receiver of symbol interlacing symbol used during data transfer, selection of reversed interlacing symbol in receiver for match with recognized interlacing symbol and reverse interlacing in receiver of received data elements by means of selected reverse interlacing symbol. |
Method and device for distributing resources in communication system with multiple inputs and outputs / 2294599 In accordance to method, for possible data transmission one or more sets of terminals is formed, while each set includes unique combination of one or more terminals and matches hypothesis subject to evaluation. Formed additionally may be one or more sub-hypotheses for each hypothesis, while each sub-hypothesis matches certain assignment of several transmitting antennas to one or more terminals in hypothesis. Then efficiency of each hypothesis is evaluated, one of evaluated sub-hypotheses is selected, based on their efficiency. Then terminal (terminals) in selected sub-hypothesis is planned for data transmission, and after that data are encoded, modulated and transferred to each terminal, planned for transmission, via one or more transmitting antennas, assigned to terminal. |
Reliable bit circuit for memorizing device of replaceable printer component / 2295754 In accordance to suggested method for detecting error in data, received from memory device of replaceable printer component, ensured is first evenness control bit, associated with first data element. First data element and first evenness control bit are stored in memorizing device. Printer includes a set of electro-conductive lines. Memorizing device includes a set of bits. At least one of electro-conductive lines is associated with each bit. First data element and first evenness control bit are read from memorizing device. Electric test of at least one of electro-conductive lines is performed. Error is identified in first data element on basis of first evenness control bit, read from memorizing device, and electric test. Other inventions of group envelop printing system, two variants of realization of replaceable printer component for printing system and method for storing information in replaceable printer component are provided. |
Transport-format data transfer / 2298878 Channel coding and speed coordination TFCI indicator pointing to definite combination of cyclic redundancy code is generated in flexible layer one of GERAN network transmitter wherein data pointing to transport format combination are enoded and integrated with content data to be included in radio data burst using TFCI indicator generation process and information from medium access control layer. TFCI indicator is encoded in coding process and inserted in data stream by means of TFCI indicator insertion process. Each code incorporates more bits than respective TFCI indicator and unambiguously identifies TFCI indicator. Encoded TFCI indicator is expanded on pre-interleaved block with fractions disposed in fixed positions within each burst. Then interleaving is made by means of interleaving device. Encoded TFCI indicator used with 50% speed data transfer channel functions as central segment of encoded TFCI indicator used in respective 50% speed data transfer channel. Extra loss is negligible but FER characteristic is essentially improved compared with full-speed transfer codes due to enhanced useful load of content data bits. Amount of encoded TFCI data transferred in 50% speed mode ensures enhanced ratio of transport-format combination data encoding efficiency to content data encoding efficiency which is at same level as ratio in full-speed data transfer mode. |
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