公开(公告)号：US11936478B2

公开(公告)日：2024-03-19

申请号：US18094708

申请日：2023-01-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong-sil Jeong ,  Se-ho Myung ,  Kyung-joong Kim

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  H03M13/35 ,  H04L1/00 ,  H04L27/04 ,  H04L27/36

CPC classification number: H04L1/0071 ,  H03M13/11 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/1177 ,  H03M13/255 ,  H03M13/27 ,  H03M13/271 ,  H03M13/2778 ,  H03M13/2792 ,  H03M13/356 ,  H03M13/616 ,  H04L1/00 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0057 ,  H04L27/04 ,  H03M13/6538 ,  H03M13/6552 ,  H03M13/6555 ,  H04L27/36

Abstract: A transmitter apparatus and a receiver apparatus are provided. The transmitter apparatus includes: an encoder configured to generate a low density parity check (LDPC) by performing LDPC encoding; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol. The modulator maps a bit included in a predetermined group from among a plurality of groups constituting the LDPC codeword onto a predetermined bit in the modulation symbol.

公开(公告)号：US20240089028A1

公开(公告)日：2024-03-14

申请号：US18516434

申请日：2023-11-21

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yufei BLANKENSHIP ,  Dennis HUI ,  Sara SANDBERG

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/09 ,  H03M13/11 ,  H03M13/35

CPC classification number: H04L1/0041 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/35 ,  H03M13/6516 ,  H04L1/0057 ,  H04L1/0061

Abstract: According to some embodiments, a method for use in a wireless transmitter comprises: determining an amount of data to transmit; determining a cyclic redundancy check (CRC) polynomial length based on the amount of data to transmit; encoding the data using a CRC of the determined polynomial length; and transmitting the encoded data. According to some embodiments, a method for use in a wireless receiver comprises: receiving encoded data from a wireless transmitter; determining an amount of data received in the encoded data; determining a CRC polynomial length based on the amount of data; and decoding the received encoded data using a CRC of the determined polynomial length. In particular embodiments, the data to transmit comprises control channel data or user data, and the encoding uses Polar codes or low-density parity check (LDPC) codes.

公开(公告)号：US11929864B2

公开(公告)日：2024-03-12

申请号：US17398482

申请日：2021-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Se-ho Myung ,  Belkacem Mouhouche ,  Daniel Ansorregui Lobete ,  Kyung-joong Kim ,  Hong-sil Jeong

IPC: H04L27/34 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L27/34 ,  H04L27/2647 ,  H04L1/0041 ,  H04L1/0057

Abstract: A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.

公开(公告)号：US20240080133A1

公开(公告)日：2024-03-07

申请号：US17929764

申请日：2022-09-06

Applicant: QUALCOMM Incorporated

Inventor： Sunitha Annam VIJAYASINGH GNANAPRAKASAM

IPC: H04L1/00 ,  H04L12/40

CPC classification number: H04L1/0061 ,  H04L1/0041 ,  H04L12/40013

Abstract: Embodiments include methods performed by a copy engine of a computing device for generating a cyclic redundancy check (CRC) in a safety network, including copying a first dataset received from an interface bus to obtain a first dataset copy, copying a second dataset received from the interface bus to obtain a second dataset copy, generating, via a first stream-wise CRC engine in the hardware of the copy engine, a first CRC value for the first dataset copy and, in parallel, generating, via a second stream-wise CRC engine in the hardware of the copy engine, a second CRC value for the second dataset copy, transmitting, to a processor of the computing device, a first stream-wise CRC message including the first dataset copy and the first CRC value, and a second stream-wise CRC message including the second dataset copy and the second CRC value.

公开(公告)号：US11923973B2

公开(公告)日：2024-03-05

申请号：US17962023

申请日：2022-10-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Jiajie Tong ,  Rong Li ,  Jun Wang ,  Wen Tong ,  Yiqun Ge ,  Xiaocheng Liu

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/11 ,  H03M13/13

CPC classification number: H04L1/0009 ,  H03M13/11 ,  H03M13/13 ,  H03M13/611 ,  H03M13/616 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0043 ,  H04L1/0061 ,  H04L1/0063 ,  H04L1/0065

Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes polar encoding, with an encoder of the device, information bits and at least one parity bit using the polar code to obtain encoded data, and transmitting the encoded data to another device. The polar code comprises a plurality of sub-channels. The at least one parity bit being placed in at least one of the plurality of sub-channels. The at least one sub-channel is selected from the plurality of sub-channels based on a weight parameter.

公开(公告)号：US20240072930A1

公开(公告)日：2024-02-29

申请号：US17898221

申请日：2022-08-29

Applicant: QUALCOMM Incorporated

Inventor： Guangyi LIU ,  Gabi SARKIS ,  Shuanshuan WU

IPC: H04L1/00

CPC classification number: H04L1/0057 ,  H04L1/0041

Abstract: Apparatus, methods, and computer program products for selecting an encoder for network coding are provided. An example method may include transmitting a report request for reporting one or more conditions to one or more network coding devices, the one or more conditions being associated with the one or more network coding devices. The example method may further include receiving a condition report reporting the one or more conditions from the one or more network coding devices based on the report request. The example method may further include transmitting a selection indication to a selected network coding device of the one or more network coding devices, the selection indication indicating a selection of the selected network coding device as an encoder for encoding a transport block (TB).

公开(公告)号：US20240072928A1

公开(公告)日：2024-02-29

申请号：US17893391

申请日：2022-08-23

Applicant: NVIDIA Corporation

Inventor： Ermin Sakic ,  Rajesh Medisetty ,  Sujit Kumar Sinha ,  Mohamadreza Marandian Hagh

IPC: H04L1/00 ,  H04L1/16

CPC classification number: H04L1/0041 ,  H04L1/0057 ,  H04L1/16

Abstract: Disclosed are apparatuses, systems, and techniques that improve efficiency and quality of data streaming in time-sensitive network communications. The techniques include but are not limited to proactive replacement of packets in network communications that use forward error correction techniques. Proactive replacement of packets that have been lost or can potentially become lost reduces network latency and increases the number of timely communicated data messages.

公开(公告)号：US11916685B2

公开(公告)日：2024-02-27

申请号：US17293743

申请日：2019-11-18

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Kei Kitamura ,  Fumikazu Inuzuka ,  Akira Hirano ,  Masahito Tomizawa ,  Takuya Ohara

IPC: H04L29/08 ,  H04L1/22 ,  H04L1/00 ,  H04L1/1607

CPC classification number: H04L1/22 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/1607

Abstract: A transmission apparatus includes redundant first communication devices configured to communicate with a communication apparatus provided in a first network, and redundant second communication devices configured to communicate with a communication apparatus provided in a second network. The second communication devices include respective first ends that are ends of redundant communication paths of the first communication devices, and the first communication devices include respective second ends that are ends of redundant communication paths of the second communication devices.

公开(公告)号：US11902079B2

公开(公告)日：2024-02-13

申请号：US17473537

申请日：2021-09-13

Applicant: Infinera Corporation

Inventor： Mehdi Torbatian ,  Deyuan Chan ,  Han Henry Sun ,  Sandy Thomson ,  Kuang-Tsan Wu

IPC: H04B10/516 ,  H04L27/36 ,  H04L25/06 ,  H04L1/00 ,  H04L27/34 ,  H04L25/49 ,  H04B10/54 ,  H04B10/077 ,  H04J14/02 ,  H04L25/03

CPC classification number: H04L27/362 ,  H04B10/0779 ,  H04B10/5161 ,  H04B10/541 ,  H04J14/0205 ,  H04J14/0226 ,  H04L1/005 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0057 ,  H04L25/067 ,  H04L25/49 ,  H04L27/3433 ,  H04L2025/03611

Abstract: Consistent with the present disclosure, an encoder circuit is provided at a transmit side of an optical fiber link that maps an input sequence of bits of fixed length k a sequence of symbols of a codeword of length n, such that the symbols of the codeword define a predetermined transmission probability distribution. Preferably, each symbol of the codeword is generated during a corresponding clock cycle, such that after n clock cycles, a complete codeword corresponding to the input bit sequence is output. On a receive end of the link, a decoder is provided that outputs the k-bit sequence every n clock cycles. Accordingly, buffers need not be provided at the output of the encoder and the input of the decoder, such that processing of the input sequence, codewords, and output sequence may be achieved efficiently without large buffers and complicated circuitry. Moreover, the input sequence, with any binary alphabet may be matched to a desired output distribution with any arbitrary alphabet. Accordingly, probabilistic constellation shaping may be achieved over constellations of arbitrary size. In addition, relatively long codewords, may be encoded and decoded with the apparatus and method disclosed herein. Accordingly, for a fixed SNR a higher SE (more bits per symbol) can be achieved. Alternatively, for a fixed SE, a lower SNR may be sufficient. Moreover, the resulting SE may be finely tailored to a particular optical link SNR to provide data transmission rates that are higher than the low order modulation formats that would otherwise be employed for optical signals carried by such links.

公开(公告)号：US11902068B2

公开(公告)日：2024-02-13

申请号：US17517795

申请日：2021-11-03

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Dae Won Lee ,  Dong Wook Roh ,  Byeong Woo Kang ,  Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim

IPC: H04W84/12 ,  H04B7/0413 ,  H04L27/14 ,  H03M5/12 ,  H04L27/00 ,  H04L25/49 ,  H04W28/06 ,  H04L27/26 ,  H04L1/00 ,  H04L27/22 ,  H04L27/227 ,  H04L27/156 ,  H04Q1/46 ,  H04L27/233 ,  H04L27/148 ,  H04L27/144 ,  H04N21/426

CPC classification number: H04L27/261 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0061 ,  H04L27/22 ,  H04L27/2613 ,  H04W84/12 ,  H03M5/12 ,  H04L25/4904 ,  H04L27/14 ,  H04L27/144 ,  H04L27/148 ,  H04L27/1563 ,  H04L27/2273 ,  H04L27/2331 ,  H04L27/2332 ,  H04L27/2647 ,  H04L2027/0028 ,  H04N21/426 ,  H04Q1/46 ,  H04W28/06

Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.