公开(公告)号：US20240356791A1

公开(公告)日：2024-10-24

申请号：US18758115

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun CHEN ,  Zhihu LUO ,  Zhenwei LU ,  Yujian TANG

IPC: H04L27/26

CPC classification number: H04L27/2602 ,  H04L27/2626

Abstract: A data transmission method and a communication apparatus. A first device may determine a second sequence, where the second sequence is obtained based on a base sequence and a first mask, and the first mask corresponds to a first encoding scheme. The first device sends the second sequence and a first sequence, where the first sequence includes a first encoded bit sequence obtained by encoding an information bit sequence based on the first encoding scheme, the first encoded bit sequence includes N bits, and N is a positive integer. The second device receives the second sequence and the first sequence from the first device and processes the received first encoded bit sequence by using a decoding scheme corresponding to the first encoding scheme. This manner is applicable to long-distance data transmission and may reduce missed detection and false detection of the first encoded bit sequence.

公开(公告)号：US12088406B2

公开(公告)日：2024-09-10

申请号：US18322348

申请日：2023-05-23

Applicant: Panasonic Holdings Corporation

Inventor： Seigo Nakao ,  Daichi Imamura

IPC: H04J13/00 ,  H04J13/22 ,  H04L1/00 ,  H04L1/1825 ,  H04L1/1829 ,  H04L1/1867 ,  H04L5/00 ,  H04L25/03 ,  H04L27/26 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04L1/12

CPC classification number: H04J13/0003 ,  H04J13/0059 ,  H04J13/0074 ,  H04J13/22 ,  H04L1/0061 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1893 ,  H04L1/1896 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0055 ,  H04L25/03866 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2626 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04L2001/125 ,  H04L5/006 ,  H04L5/0091

Abstract: Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code “1” or “e−j(π/2)” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).

公开(公告)号：US20240297812A1

公开(公告)日：2024-09-05

申请号：US18662551

申请日：2024-05-13

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tetsuya YAMAMOTO ,  Ayako HORIUCHI

IPC: H04L27/26 ,  H04L1/00 ,  H04L1/08 ,  H04L1/1829 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L27/26132 ,  H04L1/0003 ,  H04L1/0013 ,  H04L1/08 ,  H04L1/1861 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/0224 ,  H04L25/0228 ,  H04L27/26 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2626 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04L5/005 ,  H04L27/2636

Abstract: A repetition unit (212) performs a repetition for mapping a data signal and a demodulation reference signal (DMRS) repeatedly at a symbol level over a plurality of subframes. A signal allocation unit (213) maps, in the a plurality of subframes, the repeated DMRS to symbols other than symbols corresponding to an SRS resource candidate, which is a candidate for a resource to which a sounding reference signal (SRS) to be used to measure an uplink received signal quality is to be mapped. A transmission unit (216) transmits an uplink signal (PUSCH) including the DMRS and the data signal over the a plurality of subframes.

公开(公告)号：US12015512B2

公开(公告)日：2024-06-18

申请号：US18302584

申请日：2023-04-18

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tetsuya Yamamoto ,  Ayako Horiuchi

IPC: H04L27/26 ,  H04L1/00 ,  H04L1/08 ,  H04L1/1829 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L27/26132 ,  H04L1/0003 ,  H04L1/0013 ,  H04L1/08 ,  H04L1/1861 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/0224 ,  H04L25/0228 ,  H04L27/26 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2626 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04L5/005 ,  H04L27/2636

Abstract: A repetition unit (212) performs a repetition for mapping a data signal and a demodulation reference signal (DMRS) repeatedly at a symbol level over a plurality of subframes. A signal allocation unit (213) maps, in the a plurality of subframes, the repeated DMRS to symbols other than symbols corresponding to an SRS resource candidate, which is a candidate for a resource to which a sounding reference signal (SRS) to be used to measure an uplink received signal quality is to be mapped. A transmission unit (216) transmits an uplink signal (PUSCH) including the DMRS and the data signal over the a plurality of subframes.

公开(公告)号：US20240171335A1

公开(公告)日：2024-05-23

申请号：US18424484

申请日：2024-01-26

Applicant: Sun Patent Trust

Inventor： Seigo NAKAO ,  Masayuki HOSHINO ,  Atsushi SUMASU ,  Katsuhiko HIRAMATSU

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/06 ,  H04L25/02 ,  H04L27/26 ,  H04W74/00

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0682 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2626 ,  H04W74/002 ,  H04W88/02

Abstract: Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit which maps a data signal after modulation to a virtual antenna and a virtual antenna; a phase inversion unit which inverts the phase of S0 transmitted from an antenna port in synchronization with a phase inversion unit between the odd-number slot and the even-number slot; the phase inversion unit which inverts the phase of R0 transmitted from the antenna port; a phase inversion unit which inverts the phase of S1 transmitted from an antenna port in synchronization with a phase inversion unit; and the phase inversion unit which inverts the phase of R1 transmitted from an antenna port.

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.

公开(公告)号：US20240106686A1

公开(公告)日：2024-03-28

申请号：US18519830

申请日：2023-11-27

Applicant: KANDOU LABS SA

Inventor： Brian Holden

IPC: H04L25/02 ,  H04L27/26

CPC classification number: H04L25/0272 ,  H04L27/2626

Abstract: Orthogonal differential vector signalling (ODVS) techniques are described. The ODVS encoding schemes described herein generate one sub-channel for each bit by multiplying each bit by a different row in a transmitter encoding matrix to produce a set of sub-channels. Each wire carries a signal that is a superposition of elements from all of the sub-channels in the set. The transmitter encoding matrix is selected such that its rows (i.e. sub-channels) are mutual orthogonal. This means that the receiver can decode the signals received from all wires in concert to reliably recover the original bits. The transmitter encoding matrix applies weights to each sub-channel of the set, with the absolute magnitude of the weights decreasing as the number of wires associated with the respective sub-channel increases.

公开(公告)号：US11924133B2

公开(公告)日：2024-03-05

申请号：US18190016

申请日：2023-03-24

Applicant: Sun Patent Trust

Inventor： Seigo Nakao ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Katsuhiko Hiramatsu

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/06 ,  H04L25/02 ,  H04L27/26 ,  H04W74/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0682 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2626 ,  H04W74/002 ,  H04W88/02 ,  H04W88/08

Abstract: Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit which maps a data signal after modulation to a virtual antenna and a virtual antenna; a phase inversion unit which inverts the phase of S0 transmitted from an antenna port in synchronization with a phase inversion unit between the odd-number slot and the even-number slot; the phase inversion unit which inverts the phase of R0 transmitted from the antenna port; a phase inversion unit which inverts the phase of S1 transmitted from an antenna port in synchronization with a phase inversion unit; and the phase inversion unit which inverts the phase of R1 transmitted from an antenna port.

公开(公告)号：US11923970B2

公开(公告)日：2024-03-05

申请号：US17662201

申请日：2022-05-05

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Jing Sun ,  Tao Luo

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26 ,  H04W72/23 ,  H04W76/27

CPC classification number: H04L1/0003 ,  H04L1/0031 ,  H04L5/0028 ,  H04L5/0069 ,  H04L5/0092 ,  H04L27/0008 ,  H04L27/2636 ,  H04W72/23 ,  H04W76/27 ,  H04L1/0009 ,  H04L5/0007 ,  H04L5/0008 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0058 ,  H04L27/2614 ,  H04L27/2626

Abstract: Systems and methods providing for dynamic switching between the various waveforms on the downlink are described. Embodiments of a dynamic downlink waveform switching implementation may, for example, support utilization of one or more multiple carrier (MC) waveform (e.g., OFDMA) or other high peak to average power ratio (PAPR) waveform and one or more SC (SC) waveform (e.g., discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM)) or other low PAPR waveform. Dynamic selection of a downlink waveform may be made by an access point based upon various metrics, including relative distance to a served an access terminal and the preference of downlink waveform indicated by a served an access terminal. A downlink waveform selection indication may be signaled from the access point to the served an access terminal using downlink control information (DCI).

公开(公告)号：US11909419B2

公开(公告)日：2024-02-20

申请号：US18066710

申请日：2022-12-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Se-Ho Myung ,  Hong-Sil Jeong ,  Kyung-joong Kim

IPC: H03M13/27 ,  H03M13/11 ,  H03M13/25 ,  H03M13/00 ,  H04L1/00 ,  H04L27/26

CPC classification number: H03M13/2778 ,  H03M13/1165 ,  H03M13/255 ,  H03M13/2703 ,  H03M13/6552 ,  H03M13/6555 ,  H03M13/1102 ,  H03M13/1177 ,  H03M13/27 ,  H03M13/271 ,  H03M13/2707 ,  H03M13/616 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/26 ,  H04L27/2626 ,  H04L27/2627

Abstract: A transmitting apparatus and a receiving apparatus are provided. The transmitting apparatus includes: an encoder configured to generate a low density parity check (LDPC) codeword by performing LDPC encoding; an interleaver configured to interleave the LDPC codeword; and a modulator configured to modulate the interleaved LDPC codeword according to a modulation method to generate a modulation symbol. The interleaver is formed of a plurality of columns each including a plurality of rows and includes a block interleaver configured to divide each of the plurality of columns into a first part and a second part and interleave the LDPC codeword, the number of rows constituting each column divided into the first part is determined differently depending upon the modulation method, wherein the number of rows constituting each column divided into the second part is determined depending upon the number of rows constituting each column divided into the first part.