RussianPatents.com
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Method, apparatus and system for transmitting information bits. RU patent 2504910. |
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FIELD: radio engineering, communication. SUBSTANCE: method of transmitting information bits includes a step of dividing the information bits to be transmitted into at least two groups. Further, according to the method, the information bits in each group to be transmitted are encoded to obtain at least two groups of encoded bits. Said at least two groups of encoded bits are combined to obtain a full sequence of encoded bits. The full sequence of encoded bits is obtained by dividing the encoded bits in each group into N subgroups and reordering said subgroups in each group of encoded bits. Subgroups in at least one group of the encoded bits are discontinuously distributed in the full sequence of encoded bits after reordering. EFFECT: improved reception quality. 16 cl, 9 dwg, 2 tbl
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Receiver for radio signals of relative phase modulation / 2278476 Receiver of radio signals of relative phase modulation contains delay element, first and second adders, phase inverter for π and two amplitude detectors, while input of delay element and first inputs and first and second adders are connected together and are input of receiver, outputs of first and second adders respectively are connected to inputs of amplitude detectors, input of two-output phase inverter for π is connected to output of delay element, and its outputs are connected to second inputs of first and second adders, outputs of amplitude detectors of positive and negative polarity are separately connected to inputs of third adder, output of which is output of receiver. |
Multiple carrier acknowledgment signalling / 2504909 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. |
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. |
Apparatus for iterative decoding of block turbo codes and siso decoder for realising said method / 2504901 Apparatus for decoding block turbo codes has a first random-access memory unit 1, a second random-access memory unit 2, a third random-access memory unit 3, a SISO decoder 4, a decision unit 5, a first limiter 6, a read-only memory unit 7, a multiplier unit 8, a second limiter 9. The SISO decoder has a random-access memory unit 10, a clock generator 11, a switch 12, a counter 13, a read-only memory unit 14, a Walsh function coefficient signal former 15, an analysed sequence former 16, a first adder 17, a first subtractor unit 18, a doubling unit 19, a multiplier unit 20, a first divider unit 21, a second adder 22, a third adder 23, a second subtractor unit 24, a second divider unit 25, a third divider unit 26, a limiter 27. |
Novel code combination structure for frame and signal transmission in multicarrier system / 2504075 Transmitting device comprises: means of generating frames, which is configured to arrange signal and pilot signal data in each of at least two signal code combinations in a frame, each signal code combination having the same length, and arrange data in said at least one code combination in a frame, a conversion means which is configured to convert said signal code combinations and said data code combinations from a frequency domain into a time domain to generate a time-domain transmission signal, and a transmitting means which is configured to transmit said time-domain transmission signal. Method is intended to be implemented by the given device. |
Codeword space reduction for intra chroma mode signalling for hevc / 2501161 Intra prediction modes are coded in a bit stream. Brightness and chroma components can potentially have different prediction modes. For chroma components, there are 5 different modes defined in AVC: vertical, horizontal, DC, diagonal down right, and "same as brightness". Statistics show that the "same as brightness" mode is frequently used, but in AVC, this mode is encoded using more bits than other modes during entropy coding, therefore the coding efficiency is decreased. Accordingly, a modified binarisation/codeword assignment for chroma intra mode signalling can be used for high efficiency video coding (HEVC), the next generation video coding standard. |
Method of generating codes for generating signal ensembles in telecommunication networks / 2500069 Method of generating codes for generating signal ensembles involves generating a source code of N≥4 elements, a number K≥1 of codes of N elements to be generated, as well as a target function for a set of L states of the code elements, and corresponding values of given signal parameters, characterised by an array of states of L×N×K peaks on N×K levels, connected by edges, wherein each of the L states is the initial state; generating codes; selecting a path with the extremum value of the target function, after which each generated code is assigned a symbol which corresponds to the edge of the path with the extremum value of the target function, and selecting 2≤M≤K codes with the maximum value of the ratio of the amplitude of the central peak of the autocorrelation function to the magnitude of the amplitude of the maximum lateral peak of the autocorrelation function and the minimum duration of the section of the autocorrelation function between the point of the maximum of the central peak and the point where the autocorrelation function becomes zero for the first time. |
Receiving apparatus, receiving method, program and receiving system / 2494538 Receiving apparatus, which corresponds to the digital television standard T.2, known as DVB-T2, is configured to perform low-density parity-check (LDPC) decoding for physical layer channels (PLC), which denote data streams, and layer 1 (L1), which represents physical layer transmission parameters. The receiving apparatus includes a LDPC decoding apparatus which is configured such that, when a LDPC encoded data signal and a LDPC encoded transmission control signal are transmitted multiplexed, said LDPC decoding apparatus decodes both the data signal and the transmission control signal. The receiving apparatus also includes a storage device configured to be placed in front of the LDPC decoding device and to store the transmission control signal when receiving the data signal and the transmission control signal. |
Receiving apparatus, receiving method, program and receiving system / 2494538 Receiving apparatus, which corresponds to the digital television standard T.2, known as DVB-T2, is configured to perform low-density parity-check (LDPC) decoding for physical layer channels (PLC), which denote data streams, and layer 1 (L1), which represents physical layer transmission parameters. The receiving apparatus includes a LDPC decoding apparatus which is configured such that, when a LDPC encoded data signal and a LDPC encoded transmission control signal are transmitted multiplexed, said LDPC decoding apparatus decodes both the data signal and the transmission control signal. The receiving apparatus also includes a storage device configured to be placed in front of the LDPC decoding device and to store the transmission control signal when receiving the data signal and the transmission control signal. |
Method of generating codes for generating signal ensembles in telecommunication networks / 2500069 Method of generating codes for generating signal ensembles involves generating a source code of N≥4 elements, a number K≥1 of codes of N elements to be generated, as well as a target function for a set of L states of the code elements, and corresponding values of given signal parameters, characterised by an array of states of L×N×K peaks on N×K levels, connected by edges, wherein each of the L states is the initial state; generating codes; selecting a path with the extremum value of the target function, after which each generated code is assigned a symbol which corresponds to the edge of the path with the extremum value of the target function, and selecting 2≤M≤K codes with the maximum value of the ratio of the amplitude of the central peak of the autocorrelation function to the magnitude of the amplitude of the maximum lateral peak of the autocorrelation function and the minimum duration of the section of the autocorrelation function between the point of the maximum of the central peak and the point where the autocorrelation function becomes zero for the first time. |
Codeword space reduction for intra chroma mode signalling for hevc / 2501161 Intra prediction modes are coded in a bit stream. Brightness and chroma components can potentially have different prediction modes. For chroma components, there are 5 different modes defined in AVC: vertical, horizontal, DC, diagonal down right, and "same as brightness". Statistics show that the "same as brightness" mode is frequently used, but in AVC, this mode is encoded using more bits than other modes during entropy coding, therefore the coding efficiency is decreased. Accordingly, a modified binarisation/codeword assignment for chroma intra mode signalling can be used for high efficiency video coding (HEVC), the next generation video coding standard. |
Novel code combination structure for frame and signal transmission in multicarrier system / 2504075 Transmitting device comprises: means of generating frames, which is configured to arrange signal and pilot signal data in each of at least two signal code combinations in a frame, each signal code combination having the same length, and arrange data in said at least one code combination in a frame, a conversion means which is configured to convert said signal code combinations and said data code combinations from a frequency domain into a time domain to generate a time-domain transmission signal, and a transmitting means which is configured to transmit said time-domain transmission signal. Method is intended to be implemented by the given device. |
Apparatus for iterative decoding of block turbo codes and siso decoder for realising said method / 2504901 Apparatus for decoding block turbo codes has a first random-access memory unit 1, a second random-access memory unit 2, a third random-access memory unit 3, a SISO decoder 4, a decision unit 5, a first limiter 6, a read-only memory unit 7, a multiplier unit 8, a second limiter 9. The SISO decoder has a random-access memory unit 10, a clock generator 11, a switch 12, a counter 13, a read-only memory unit 14, a Walsh function coefficient signal former 15, an analysed sequence former 16, a first adder 17, a first subtractor unit 18, a doubling unit 19, a multiplier unit 20, a first divider unit 21, a second adder 22, a third adder 23, a second subtractor unit 24, a second divider unit 25, a third divider unit 26, a limiter 27. |
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