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    LINEAR-CODE-BASED PROBABILISTIC SHAPING
    1.
    发明申请
    LINEAR-CODE-BASED PROBABILISTIC SHAPING 有权

    公开(公告)号：US20250096931A1

    公开(公告)日：2025-03-20

    申请号：US18470616

    申请日：2023-09-20

    Applicant: QUALCOMM Incorporated

    Inventor： Wei YANG ,  Jing JIANG ,  Thomas Joseph RICHARDSON

    IPC: H04L1/00

    Abstract: A transmitter is provided that shapes uniformly-distributed bits into a non-uniformly distributed bits according to a parity check matrix of a linear code such that a product of the parity check matrix and the non-uniformly distributed bits equals the uniformly-distributed bits. Similarly, receiver is provided that recovers the uniformly-distributed bits from the non-uniformly distributed bits through a multiplication of the non-uniformly-distributed bits with the parity check matrix.

    IN-NETWORK DISTRIBUTED PROCESSING FOR PRECODING AND LINEAR DETECTION
    4.
    发明公开
    IN-NETWORK DISTRIBUTED PROCESSING FOR PRECODING AND LINEAR DETECTION 审中-公开

    公开(公告)号：US20230299828A1

    公开(公告)日：2023-09-21

    申请号：US17655319

    申请日：2022-03-17

    Applicant: QUALCOMM Incorporated

    Inventor： Ori SHENTAL ,  Ashwin SAMPATH ,  Junyi LI ,  Thomas Joseph RICHARDSON

    IPC: H04B7/06 ,  H04B7/0456

    CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0639

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may transmit a set of first values indicating a first estimated value at the first node and a first reliability value associated with the first estimated value, the set of first values being based at least in part on channel state information (CSI) associated with the first node and a set of user equipments (UEs). The first node may receive, from a set of second nodes, a set of second values indicating a second estimated value at the second node and a second reliability value associated with the second estimated value. The first node may transmit, to the set of second nodes, a set of third values indicating a third estimated value at the first node and a third reliability value associated with the third estimated value. Numerous other aspects are described.

    GENERALIZED POLAR CODE CONSTRUCTION
    5.
    发明申请
    GENERALIZED POLAR CODE CONSTRUCTION 审中-公开

    公开(公告)号：US20200322085A1

    公开(公告)日：2020-10-08

    申请号：US16305255

    申请日：2017-03-31

    Applicant: QUALCOMM INCORPORATED

    Inventor： Shrinivas KUDEKAR ,  Thomas Joseph RICHARDSON

    IPC: H04L1/00 ,  H03M13/13

    Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for improving decoding latency and performance of Polar codes. An exemplary method generally includes generating a codeword by encoding information bits using a first code of length K to obtain bits for transmission via K channels, wherein the first code comprises a polar code, further encoding the bits in each of the K channels using a second code of length M, and transmitting the codeword.

    SPARSITY AND CONTINUITY-BASED CHANNEL STITCHING TECHNIQUES FOR ADJACENT TRANSMISSIONS
    6.
    发明申请
    SPARSITY AND CONTINUITY-BASED CHANNEL STITCHING TECHNIQUES FOR ADJACENT TRANSMISSIONS 审中-公开
    用于相邻传输的基于空间和连续性的通道缝合技术

    公开(公告)号：US20160227516A1

    公开(公告)日：2016-08-04

    申请号：US15012731

    申请日：2016-02-01

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatesan NALLAMPATTI EKAMBARAM ,  Jubin JOSE ,  Xinzhou WU ,  Thomas Joseph RICHARDSON

    IPC: H04W72/04

    CPC classification number: H04W72/04 ,  H04L5/001 ,  H04L27/2659 ,  H04L27/2671 ,  H04L27/2695

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The device may receive a signal on each of N channels from another device. The N channels may include a first channel. The device may determine a frequency response of each of the N channels based on the received signals. The device may transform, from a frequency domain to a time domain, the N frequency responses in order to generate a transformed signal. The frequency response of an nth channel of the N channels may be adjusted by a channel offset of the nth channel with respect to the first channel for n being each integer from 2 to N. The device may then estimate the channel offset for each of the N channels other than the first channel based on the transformed signal.

    Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 设备可以从另一个设备接收N个信道中的每一个信号。 N个信道可以包括第一信道。 该设备可以基于接收到的信号来确定每个N个信道的频率响应。 该装置可以从频域到时域转换N个频率响应，以便产生经变换的信号。 可以通过第n个信道相对于第一信道的信道偏移来调整N个信道的第n个信道的频率响应，n的每个整数从2到N。然后，设备可以估计每个信道的信道偏移 基于变换信号的第一通道以外的N个通道。

    JOINT LOW-DENSITY PARITY-CHECK CODING AND MODULATION DESIGNS
    7.
    发明申请
    JOINT LOW-DENSITY PARITY-CHECK CODING AND MODULATION DESIGNS 有权

    公开(公告)号：US20240406797A1

    公开(公告)日：2024-12-05

    申请号：US18328590

    申请日：2023-06-02

    Applicant: QUALCOMM Incorporated

    Inventor： Pinar SEN ,  Wei YANG ,  Jing JIANG ,  Gabi SARKIS ,  Thomas Joseph RICHARDSON

    IPC: H04W28/04 ,  H04L1/00

    Abstract: Methods, systems, and devices for wireless communications are described herein. A transmitting device (e.g., a user equipment (UE), a network entity) may generate a low-density parity-check code according to a base graph, which may be defined by variable nodes and check nodes. The base graph may support second degree variable nodes in the information nodes of the base graph and a larger quantity of second degree nodes associated with higher significance bits than with lower significance bits. Higher significance levels (e.g., bits) may correspond to higher channel reliabilities. The base graph may be a universal base graph or may include additional rules specific to probabilistic shaping. In some examples, an interleaver may be defined to map the base graph to symbols. In some cases, the UE may report its capability to support one or more interleavers, or the network entity may configure the UE with an interleaver.

    HIGH PERFORMANCE, FLEXIBLE, AND COMPACT LOW-DENSITY PARITY-CHECK (LDPC) CODE
    9.
    发明申请
    HIGH PERFORMANCE, FLEXIBLE, AND COMPACT LOW-DENSITY PARITY-CHECK (LDPC) CODE 有权

    公开(公告)号：US20210058192A1

    公开(公告)日：2021-02-25

    申请号：US17090498

    申请日：2020-11-05

    Applicant: QUALCOMM Incorporated

    Inventor： Thomas Joseph RICHARDSON ,  Shrinivas KUDEKAR

    IPC: H04L1/00 ,  H03M13/00 ,  H03M13/03 ,  H03M13/11 ,  H04L1/18

    Abstract: Certain aspects of the present disclosure generally relate to techniques for puncturing of structured low-density parity-check (LDPC) codes. Certain aspects of the present disclosure generally relate to methods and apparatus for a high-performance, flexible, and compact LDPC code. Certain aspects can enable LDPC code designs to support large ranges of rates, blocklengths, and granularity, while being capable of fine incremental redundancy hybrid automatic repeat request (IR-HARQ) extension while maintaining good floor performance, a high-level of parallelism to deliver high throughout performance, and a low description complexity.

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