公开(公告)号：US20240348366A1

公开(公告)日：2024-10-17

申请号：US18632819

申请日：2024-04-11

申请人： Samsung Electronics Co., Ltd.

发明人： Donghwa HAN ,  Seho MYUNG ,  Kwonjong LEE ,  Donghun LEE ,  Min JANG

IPC分类号： H04L1/00 ,  H03M13/23 ,  H03M13/41

CPC分类号： H04L1/006 ,  H03M13/23 ,  H03M13/41 ,  H04L1/0054

摘要： The disclosure relates to fifth generation (5G) or sixth generation (6G) communication systems to support higher data rates. A receiver of a communication system includes a transceiver configured to receive a signal encoded based on polarization-adjusted convolutional (PAC) coding from a transmitter, and a controller configured to calculate branch metrics of branches defined in a trellis associated with the PAC, calculate a path metric based on an accumulated sum of the branch metrics, determine a path assigned to each state based on the path metric, and estimate a codeword based on the determined path, wherein a number of paths assigned to each state is dynamically determined according to the number of active states, and wherein the active state includes at least one branch.

公开(公告)号：US11838164B2

公开(公告)日：2023-12-05

申请号：US17090352

申请日：2020-11-05

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Jianfeng Wang ,  Asbjörn Grövlen ,  Henrik Sahlin

IPC分类号： H04L27/26 ,  H04L25/03 ,  H03M13/09 ,  H04L5/00 ,  H04W48/12 ,  H03M13/41 ,  H04W56/00

CPC分类号： H04L27/2655 ,  H03M13/091 ,  H03M13/41 ,  H04L5/0035 ,  H04L25/03872 ,  H04W48/12 ,  H04W56/0015

摘要： The disclosure relates to a method performed by a wireless device, for receiving system information from a network node of a wireless communication system. The system information is received in a synchronization signal (SS) block of an SS burst set comprising at least one SS block. The system information is multiplexed with information providing a time index indicating which SS block of the SS burst set that is being received. The method comprises receiving the information providing the time index, and receiving the system information, which comprises descrambling the system information using a scrambling sequence generated based on the information providing the time index. The method also comprises determining an accuracy of the information providing the time index, based on an error-detection code related to the received system information. The disclosure also relates to corresponding network node method and apparatus.

公开(公告)号：US20190130940A1

公开(公告)日：2019-05-02

申请号：US16095448

申请日：2017-05-12

申请人： SONY CORPORATION

发明人： Satoru HIGASHINO

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B20/18 ,  H03M13/41

CPC分类号： G11B20/10055 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10287 ,  G11B20/10296 ,  G11B20/1217 ,  G11B20/14 ,  G11B20/1426 ,  G11B20/18 ,  H03M13/41 ,  H03M13/4107

摘要： There is provided a signal processing apparatus and a signal processing method capable of allowing data recorded at a high density to be robustly reproduced. A frame sync (FS) is restored by performing maximum likelihood decoding of the FS according to a time-varying trellis with a state and a state transition being limited according to a time, in maximum likelihood decoding of a reproduction signal reproduced from a disk-shaped recording medium, the FS representing a head of a frame, the FS of the frame being arranged at the head of the frame, the FS being recorded at the same positions in a track direction in two adjacent tracks.

公开(公告)号：US20180102850A1

公开(公告)日：2018-04-12

申请号：US15839380

申请日：2017-12-12

申请人： INPHI CORPORATION

发明人： Oscar Ernesto AGAZZI ,  Diego Ernesto CRIVELLI ,  Hugo Santiago CARRER ,  Mario Rafael HUEDA ,  German Cesar Augusto LUNA ,  Carl GRACE

IPC分类号： H04B10/50 ,  H04B7/005 ,  H04L25/02 ,  H04B3/23 ,  H03M13/41

CPC分类号： H04B10/5059 ,  H03M13/41 ,  H04B1/38 ,  H04B3/235 ,  H04B7/005 ,  H04B7/0456 ,  H04B10/25073 ,  H04B10/2941 ,  H04B10/40 ,  H04B10/6971 ,  H04B2001/0441 ,  H04B2201/709772 ,  H04L5/16 ,  H04L25/0202 ,  H04L25/025 ,  H04L25/03038 ,  H04L25/03057 ,  H04L2025/03477 ,  H04L2025/03617

摘要： A receiver (e.g., for a 10 G fiber communications link) includes an interleaved ADC coupled to a multi-channel equalizer that can provide different equalization for different ADC channels within the interleaved ADC. That is, the multi-channel equalizer can compensate for channel-dependent impairments. In one approach, the multi-channel equalizer is a feedforward equalizer (FFE) coupled to a Viterbi decorder, for example, a sliding block Viterbi decoder (SBVD); and the FFE and/or the channel estimator for the Viterbi decoder are adapted using the LMS algorithm.

公开(公告)号：US20180048426A1

公开(公告)日：2018-02-15

申请号：US15650603

申请日：2017-07-14

申请人： QUALCOMM Incorporated

发明人： Yang Yang ,  Jing Jiang ,  Jamie Menjay Lin ,  Peter Pui Lok Ang ,  Gabi Sarkis ,  John Edward Smee

IPC分类号： H04L1/00 ,  H03M13/29 ,  H03M13/11 ,  H04J13/00

CPC分类号： H04L1/0071 ,  H03M13/1102 ,  H03M13/29 ,  H03M13/2957 ,  H03M13/3972 ,  H03M13/41 ,  H03M13/413 ,  H03M13/6502 ,  H04J13/0003 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0056 ,  H04L1/0059 ,  H04L1/0067

摘要： Methods, systems, and devices for wireless communication are described. The method, systems, and devices may include receiving a plurality of sets of input bits associated with respective transmission symbol periods at an encoder of a transmitting device, the plurality of sets of input bits associated with a single input vector to be encoded into a single codeword. The encoder may process the plurality of sets of input bits to generate a plurality of sets of output bits associated with respective transmission symbol periods, and output a first of the plurality of sets of output bits associated with a first of the plurality of sets of input bits prior receiving a second of the plurality of sets of input bits, the second of the plurality of sets of input bits being received at the encoder subsequent to the first of the plurality of sets of input bits.

公开(公告)号：US09749028B2

公开(公告)日：2017-08-29

申请号：US14997804

申请日：2016-01-18

申请人： Jung Hoon Suh ,  Osama Aboul-Magd

发明人： Jung Hoon Suh ,  Osama Aboul-Magd

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04B7/06 ,  H04L1/00 ,  H03M13/00 ,  H04B7/0417 ,  H03M13/41

CPC分类号： H04B7/0619 ,  H03M13/41 ,  H03M13/6577 ,  H04B7/0417 ,  H04B7/0658 ,  H04L1/006

摘要： A method and apparatus for feeding back channel information from a first device to a second device in a wireless communication system are provided. The first device estimates channel parameters based on a signal received from the second device, and determines a set of angle parameters indicative of an angle representation of a V matrix, which is the right singular matrix of a singular value decomposition of an estimated channel matrix H. The angle parameters can be derived according to a Givens rotation method or Cosine-Sine decomposition. The first device applies a Trellis Coded Quantization (TCQ) scheme to map the angle parameters to a trellis. A Viterbi algorithm applied to the trellis generates quantized angle parameters which are transmitted to the second device.

公开(公告)号：US20170156131A1

公开(公告)日：2017-06-01

申请号：US15327613

申请日：2015-07-10

申请人： SONY CORPORATION

发明人： Ryota KIMURA ,  Hiromasa UCHIYAMA ,  Sho FURUICHI ,  Ryo SAWAI

IPC分类号： H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04J11/00

CPC分类号： H04W72/04 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/1111 ,  H03M13/17 ,  H03M13/23 ,  H03M13/27 ,  H03M13/2957 ,  H03M13/3769 ,  H03M13/41 ,  H03M13/6306 ,  H03M13/6362 ,  H04J11/00 ,  H04J11/005 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/0061 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/1812 ,  H04L1/1819 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0073

摘要： A wireless communication device, a wireless communication method, and a program capable of contributing to improvement of wireless communication technology related to IDMA. The wireless communication device includes: a wireless communication unit that performs wireless communication using interleave division multiple access (IDMA) with another wireless communication device; and a controller that controls an interleave length in an interleave process for IDMA by the wireless communication unit.

公开(公告)号：US20170141877A1

公开(公告)日：2017-05-18

申请号：US15318839

申请日：2015-06-23

申请人： Sony Semiconductor Solutions Corporation

发明人： Ryoji Ikegaya ,  Takashi Yokokawa

IPC分类号： H04L1/00 ,  H04L5/00 ,  H04W52/02

CPC分类号： H04L1/0054 ,  H03M13/27 ,  H03M13/29 ,  H03M13/41 ,  H04L1/0051 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0053 ,  H04L5/006 ,  H04W52/0203 ,  Y02D70/168

摘要： The present disclosure relates to a receiving device, a receiving method, and a program that can reduce power consumption. A Viterbi decoding unit performs Viterbi decoding on a likelihood as a processing target, a byte de-interleaver delays a part of a decoding result of Viterbi decoding, and an RS decoding unit performs RS decoding on the decoding result after delaying by the byte de-interleaver. A likelihood converting unit controls decoding of the likelihood to improve reliability of the decoding result. Then, when all of a predetermined number of decoding results by the RS decoding unit are succeeded or failed, the decode stop determination unit determines to stop subsequent decoding on the likelihood as a processing target. The present technology may be applied to, for example, a receiving device that receives digital terrestrial broadcasting compatible with the ISDB-T standard, or the like.

公开(公告)号：US09484956B2

公开(公告)日：2016-11-01

申请号：US13977787

申请日：2012-01-03

申请人： Raoul Prevost ,  David Bonacci ,  Martial Coulon ,  Jean-Yves Tourneret ,  Julia Le Maitre ,  Jean-Pierre Millerioux

发明人： Raoul Prevost ,  David Bonacci ,  Martial Coulon ,  Jean-Yves Tourneret ,  Julia Le Maitre ,  Jean-Pierre Millerioux

IPC分类号： H03M13/03 ,  H03M13/25 ,  H03M13/39 ,  H03M13/41 ,  H03M13/00

CPC分类号： H03M13/256 ,  H03M13/3994 ,  H03M13/41 ,  H03M13/4146 ,  H03M13/6508

摘要： The invention relates to a method for correcting a message the generation of which involves transforming an initial message and inserting bit stuffing into the transformed message, which method comprises providing an observation sequence containing the message to be corrected. A number of path hypotheses are generated via a trellis diagram associated with the transformation. The nodes of the trellis diagram each represent a state of a finite-state machine capable of transforming the initial message and the branches represent the possible transitions between nodes. Among the branches of the trellis diagram, certain represent conditional transitions that may be made only when bit stuffing is present. During the generation of a path hypothesis, bit stuffing is detected and the branches taken are those associated with the detected bit stuffing. The most likely path hypothesis relative to the observation sequence is finally retained.

公开(公告)号：US20160294597A1

公开(公告)日：2016-10-06

申请号：US15181687

申请日：2016-06-14

申请人： Imagination Technologies Limited

发明人： Mohammed El-Hajjar ,  Paul Murrin ,  Adrian J. Anderson

IPC分类号： H04L27/26

CPC分类号： H04L27/2647 ,  H03M13/41 ,  H04L1/0054 ,  H04L1/06 ,  H04L1/0618 ,  H04L25/067 ,  H04L27/38

摘要： Methods and apparatus for efficient demapping of constellations are described. In an embodiment, these methods may be implemented within a digital communications receiver, such as a Digital Terrestrial Television receiver. The method reduces the number of distance metric calculations which are required to calculate soft information in the demapper by locating the closest constellation point to the received symbol. This closest constellation point is identified based on a comparison of distance metrics which are calculated parallel to either the I- or Q-axis. The number of distance metric calculations may be reduced still further by identifying a local minimum constellation point for each bit in the received symbol and these constellation points are identified using a similar method to the closest constellation point. Where the system uses rotated constellations, the received symbol may be unrotated before any constellation points are identified.