公开(公告)号：US20240388336A1

公开(公告)日：2024-11-21

申请号：US18734255

申请日：2024-06-05

Applicant: Sun Patent Turst

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC: H04B7/0456 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L25/06 ,  H04L27/26

Abstract: All data symbols used in data transmission of a modulated signal are precoded by switching between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol along the frequency axis and the time axis all differ. A modulated signal with such data symbols arranged therein is transmitted.

公开(公告)号：US20240372764A1

公开(公告)日：2024-11-07

申请号：US18765621

申请日：2024-07-08

Applicant: Sun Patent Trust

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC: H04L27/26 ,  H04B7/0426 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04B7/12 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L25/06 ,  H04L27/00 ,  H04L27/34

Abstract: Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.

公开(公告)号：US20240372648A1

公开(公告)日：2024-11-07

申请号：US18291236

申请日：2022-07-25

Applicant: Continental Automotive Technologies GmbH

Inventor： David Gonzalez Gonzalez ,  Osvaldo Gonsa ,  Hiroki Iimori ,  Giuseppe Thadeu Freitas de Abreu ,  Hyeon Seok Rou

IPC: H04L1/06 ,  H04L5/00

Abstract: Scalable space-time quadrature spatial modulation for multidimensional wireless systems is performed by configuring a plurality of transmit antennas to each represent an in-phase spatial constellation symbol within an in-phase spatial constellation, and a quadrature spatial constellation symbol within a quadrature spatial constellation, mapping source data to the in-phase spatial constellation symbols and the quadrature spatial constellation symbols represented by the plurality of transmit antennas, wherein the method constructs the set which has equal multiplicities of the transmit antenna activation, which ensures maximum possible transmit diversity and reduces the required complexity, making this feasible for larger number of antennas.

公开(公告)号：US12074703B2

公开(公告)日：2024-08-27

申请号：US18142720

申请日：2023-05-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC: H03M13/00 ,  H03M13/25 ,  H04L1/00 ,  H04L1/06 ,  H04L27/34 ,  H03M13/11 ,  H04B7/0413 ,  H04B7/06 ,  H04L27/18

CPC classification number: H04L1/0041 ,  H03M13/255 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0643 ,  H04L27/34 ,  H03M13/1102 ,  H03M13/1165 ,  H04B7/0413 ,  H04B7/0669 ,  H04L2001/0093 ,  H04L27/18

Abstract: In a transmission method according to one aspect of the present disclosure, a encoder performs error correction coding on an information bit string to generate a code word. A mapper modulates a first bit string in which the number of bits is the predetermined integral multiple of (X+Y) in the code word using a first scheme, the first scheme being a set of a modulation scheme in which an X-bit bit string is mapped to generate a first complex signal and a modulation scheme in which a Y-bit bit string is mapped to generate a second complex signal, and modulates a second bit string in which the first bit string is removed from the code word using a second scheme different from the first scheme.

公开(公告)号：US20240283592A1

公开(公告)日：2024-08-22

申请号：US18586414

申请日：2024-02-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong Ee OH ,  Min Ho CHEONG ,  Sok Kyu LEE

IPC: H04L5/00 ,  H03M13/11 ,  H03M13/23 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/35 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L1/06 ,  H04L27/18 ,  H04L27/26 ,  H04L27/34

CPC classification number: H04L5/0046 ,  H03M13/256 ,  H03M13/271 ,  H03M13/356 ,  H04B7/04 ,  H04B7/0697 ,  H04B7/08 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/06 ,  H04L1/0618 ,  H04L5/0026 ,  H04L27/186 ,  H04L27/2627 ,  H04L27/3416 ,  H03M13/1102 ,  H03M13/23 ,  H03M13/2957

Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.

公开(公告)号：US12052036B2

公开(公告)日：2024-07-30

申请号：US18140164

申请日：2023-04-27

Applicant: Panasonic Holdings Corporation

Inventor： Mihail Petrov

IPC: H03M13/27 ,  H03M13/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/29 ,  H03M13/35 ,  H04L1/00 ,  H04L1/06

CPC classification number: H03M13/2792 ,  H03M13/116 ,  H03M13/1165 ,  H03M13/1168 ,  H03M13/255 ,  H03M13/27 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2778 ,  H03M13/2957 ,  H03M13/356 ,  H03M13/6325 ,  H03M13/6552 ,  H03M13/6555 ,  H04L1/0058 ,  H04L1/0606 ,  H04L1/0618

Abstract: A bit interleaving method involves applying a bit permutation process to bits of a QC-LDPC codeword made up of N cyclic blocks each including Q bits, and dividing the codeword after the permutation process into a plurality of constellation words each including M bits, the codeword being divided into F×M′/M folding sections (N′ being a subset of N selected cyclic blocks and being a multiple of M/F), each of the constellation words being associated with one of the F×M′/M folding sections, and the bit permutation process being applied such that each of the constellation words includes F bits from each of M/F different cyclic blocks in a given folding section associated with a given constellation word.

公开(公告)号：US20240243847A1

公开(公告)日：2024-07-18

申请号：US18619599

申请日：2024-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kangjian QIN ,  Rong LI ,  Huazi ZHANG ,  Xianbin WANG ,  Shengchen DAI ,  Jun WANG

IPC: H04L1/08 ,  H04L1/06 ,  H04L1/1607

CPC classification number: H04L1/08 ,  H04L1/0643 ,  H04L1/1642

Abstract: This application discloses a retransmission method and an apparatus. The method includes: obtaining a first bit sequence and a number E of to-be-retransmitted bits, performing second channel encoding based on the first bit sequence to obtain a second bit sequence, and performing retransmission based on the second bit sequence. The first bit sequence is obtained by performing first channel encoding based on K information bits, a length of the first bit sequence is N, N, E, and K are all integers greater than or equal to 1, and the second bit sequence includes the E to-be-retransmitted bits. According to the method, a code length can be flexibly extended based on different numbers E of to-be-retransmitted bits.

公开(公告)号：US12009924B2

公开(公告)日：2024-06-11

申请号：US17268867

申请日：2019-08-05

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Yu Zhang ,  Chenxi Hao ,  Liangming Wu ,  Hao Xu

IPC: H04L1/16 ,  H04L1/06 ,  H04L1/1607 ,  H04L1/18 ,  H04L1/1812 ,  H04L1/1829 ,  H04B7/024

CPC classification number: H04L1/1671 ,  H04L1/06 ,  H04L1/1819 ,  H04L1/1829 ,  H04B7/024

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a first decoding result for a plurality of downlink control channels of a diversity enhancement based non-coherent joint transmission communication and a second decoding result for a plurality of data channels corresponding to the plurality of downlink control channels; and selectively provide feedback regarding the first decoding result and feedback regarding the second decoding result, the feedback regarding the first decoding result indicating whether reception of one or more downlink control channels, of the plurality of downlink control channels, is successful, and the feedback regarding the second decoding result indicating whether decoding of a codeword of the plurality of data channels is successful. Numerous other aspects are provided.

公开(公告)号：US11968145B2

公开(公告)日：2024-04-23

申请号：US18075933

申请日：2022-12-06

Applicant: LG Electronics Inc.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Kyuseok Kim ,  Minki Ahn ,  Kilbom Lee

IPC: H04L5/00 ,  H04L1/06

CPC classification number: H04L5/0051 ,  H04L1/06 ,  H04L5/0023

Abstract: A method by which a terminal transmits an SRS can comprise the steps of: receiving, from a base station, first information indicating symbols to which the SRS is transmitted among a plurality of symbols, when the terminal is configured to perform antenna switching for an SRS transmission on the plurality of symbols; and transmitting the SRS on the indicated symbols, wherein the SRS is transmitted through antenna ports respectively corresponding to the indicated symbols, and the antenna ports respectively corresponding to the indicated symbols can be different from each other.

公开(公告)号：US11968070B2

公开(公告)日：2024-04-23

申请号：US17896777

申请日：2022-08-26

Applicant: Apple Inc.

Inventor： Lei Huang ,  Hong Cheng Michael Sim ,  Takenori Sakamoto

IPC: H04L27/26 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L69/22 ,  H04L69/323

CPC classification number: H04L27/2626 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0088 ,  H04L1/0091 ,  H04L1/06 ,  H04L1/0631 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2603 ,  H04L27/2607 ,  H04L27/2613 ,  H04L69/22 ,  H04L69/323

Abstract: A transmission apparatus includes a transmission signal generator which, in operation, generates a transmission signal having an aggregate physical layer protocol data unit (PPDU) that includes a legacy preamble, a legacy header, a non-legacy preamble, a plurality of non-legacy headers and a plurality of data fields; and a transmitter which, in operation, transmits the generated transmission signal, wherein the legacy preamble, the legacy header and the plurality of non-legacy headers are transmitted using a standard bandwidth, the non-legacy preamble and the plurality of data fields are transmitted using a variable bandwidth that is larger than the standard bandwidth and wherein a plurality of sets of each of the plurality of non-legacy headers and each of the plurality of data fields are transmitted sequentially in a time domain.