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    TECHNIQUES FOR ESTIMATING MISALIGNMENT BETWEEN ANTENNA ARRAYS
    1.
    发明申请
    TECHNIQUES FOR ESTIMATING MISALIGNMENT BETWEEN ANTENNA ARRAYS 有权

    公开(公告)号：US20250055514A1

    公开(公告)日：2025-02-13

    申请号：US18810339

    申请日：2024-08-20

    Applicant: QUALCOMM Incorporated

    Inventor： Seyong Park ,  Pinar SEN ,  Renqiu WANG ,  Peter GAAL ,  Naga BHUSHAN ,  Krishna Kiran MUKKAVILLI ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Hwan Joon KWON ,  Tingfang JI

    IPC: H04B7/0456 ,  H04B7/06

    Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may be configured to transmit one or more reference signals to a second wireless device using a first antenna array at the first wireless device and in accordance with a first precoder matrix. The first wireless device may receive, from the second wireless device based on the one or more reference signals, a feedback message indicating an estimated rotational misalignment, an estimated spatial misalignment, or both, between the first antenna array at the first wireless device and a second antenna array at the second wireless device. The first wireless device may then transmit a message to the second wireless device in accordance with a second precoder matrix that is modified relative to the first precoder matrix based at least in part on the estimated rotational misalignment, the estimated spatial misalignment, or both.

    LIFTING SCHEMES FOR LOW-DENSITY PARITY-CHECK CODES
    2.
    发明申请
    LIFTING SCHEMES FOR LOW-DENSITY PARITY-CHECK CODES 有权

    公开(公告)号：US20250055481A1

    公开(公告)日：2025-02-13

    申请号：US18448316

    申请日：2023-08-11

    Applicant: QUALCOMM Incorporated

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

    IPC: H03M13/11

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless communication device may implement a low-density parity-check (LDPC) code to encode and/or decode bits of a signal. The LDPC code may be defined by a base graph and a lifting scheme. The base graph may include check nodes and variable nodes. The lifting scheme may define a quantity of copies of the base graph used to generate the LDPC code and respective cyclic shifts associated with connected variable nodes and check nodes. The respective cycle shifts may be defined such that one or more cycles associated with a minimum length of the LDPC code are associated with a restriction on second degree variable nodes, nodes associated with least significant bits, or a combination thereof. Additionally, or alternatively, the respective cycle shifts may be defined such that a weighted girth of the LDPC code satisfies a threshold.

    FAST CONVERGING LOW-DENSITY PARITY-CHECK TECHNIQUES
    4.
    发明申请
    FAST CONVERGING LOW-DENSITY PARITY-CHECK TECHNIQUES 有权

    公开(公告)号：US20250062857A1

    公开(公告)日：2025-02-20

    申请号：US18450280

    申请日：2023-08-15

    Applicant: QUALCOMM Incorporated

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

    IPC: H04L1/00 ,  H03M13/11

    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may perform a lifting procedure on a base graph including multiple variable nodes and multiple check nodes to obtain a lifted graph. The lifting procedure may include replacing each edge between multiple variable nodes and multiple check nodes of the base graph with a respective identity matrices with respective circular shift values. The base graph may include a punctured variable node which corresponds to each of one or more check nodes of the plurality of check nodes via multiple edges. The transmitting device may encode multiple information nodes and multiple parity nodes according to the lifted graph. The transmitting device may transmit a signal including multiple information bits and multiple parity bits based on encoding the multiple information nodes and the multiple parity nodes.

    TRANSMIT FLOW FOR SUPPORTING PROBABILISTIC SHAPING
    5.
    发明申请
    TRANSMIT FLOW FOR SUPPORTING PROBABILISTIC SHAPING 有权

    公开(公告)号：US20240380514A1

    公开(公告)日：2024-11-14

    申请号：US18316161

    申请日：2023-05-11

    Applicant: QUALCOMM Incorporated

    Inventor： Wei YANG ,  Jing JIANG ,  Hobin KIM ,  Jae Won YOO ,  Hari SANKAR ,  Pinar SEN

    IPC: H04L1/00

    Abstract: A method for wireless communication at a transmitting wireless device and related apparatus are provided. In the method, the device determines, based on the first parameter associated with a Forward Error Correction (FEC) process and a second parameter associated with a probabilistic shaping process, the transport block (TB) size for a TB associated with a signal to be transmitted, and performs the probabilistic shaping process on a first set of data bits of the signal on the TB to obtain a second set of transmit bits. The TB cyclic redundancy check (CRC) is inserted into the TB before or after the probabilistic shaping process, and the probabilistic shaping process is applied on the TB level across multiple code blocks (CBs) associated with the TB or on the CB level individually inside each CB of the multiple CBs. The device further transmits the signal using the second set of transmit bits.

    SELECTIVE RETRANSMISSIONS ON A NON-ORTHOGONAL CHANNEL
    6.
    发明公开
    SELECTIVE RETRANSMISSIONS ON A NON-ORTHOGONAL CHANNEL 审中-公开

    公开(公告)号：US20240008040A1

    公开(公告)日：2024-01-04

    申请号：US17853784

    申请日：2022-06-29

    Applicant: QUALCOMM Incorporated

    Inventor： Yongjun KWAK ,  Pinar SEN ,  Hwan Joon KWON

    IPC: H04W72/04 ,  H04L1/08 ,  H04L5/00

    CPC classification number: H04W72/0406 ,  H04L1/08 ,  H04L5/0048

    Abstract: An apparatus for wireless communication is provided. The apparatus may be a network node. The apparatus receives a set of uplink transmissions from a set of user equipments (UEs) via a first resource of a non-orthogonal channel, wherein the apparatus is unable to decode the set of uplink transmissions. The apparatus transmits a retransmission request to a subset of the set of UEs. The apparatus receives a retransmission of a first uplink transmission in the set of uplink transmissions via a second resource of the non-orthogonal channel in response to the retransmission request. The apparatus decodes a second uplink transmission in the set of uplink transmissions based on at least the retransmission of the first uplink transmission.

    MULTI-USER SCHEDULING INDICATION FOR DEMODULATION REFERENCE SIGNALS
    10.
    发明公开
    MULTI-USER SCHEDULING INDICATION FOR DEMODULATION REFERENCE SIGNALS 审中-公开

    公开(公告)号：US20240121045A1

    公开(公告)日：2024-04-11

    申请号：US18480367

    申请日：2023-10-03

    Applicant: QUALCOMM Incorporated

    Inventor： Yi HUANG ,  Pinar SEN ,  Peter GAAL ,  Jae Won YOO ,  Yu ZHANG

    IPC: H04L5/00

    CPC classification number: H04L5/0048

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive signaling that schedules a shared channel and indicates a set of demodulation reference signal (DMRS) ports scheduled for the UE, the signaling including a field for conveying an indicator of a co-scheduled UE for the set of DMRS ports. The UE may communicate a set of DMRSs based at least in part on the signaling. Numerous other aspects are described.

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