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    Rateless coding at layer two protocol layer
    1.
    发明授权
    Rateless coding at layer two protocol layer 有权

    公开(公告)号：US12237919B2

    公开(公告)日：2025-02-25

    申请号：US18004648

    申请日：2021-07-23

    Applicant: QUALCOMM Incorporated

    Inventor： Ruiming Zheng ,  Changlong Xu ,  Jian Li ,  Kangqi Liu ,  Liangming Wu ,  Peng Cheng ,  Hao Xu ,  Xipeng Zhu

    IPC: H04L1/00 ,  H04L1/1607 ,  H04L1/1829 ,  H04L1/1867 ,  H04L69/22

    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may receive one or more service data units (SDUs) at a layer two (L2) layer of the transmitting device. The transmitting device may encode, at the L2 layer, the one or more SDUs according to one or more network coding parameters to obtain at least one encoded protocol data unit (PDU), the one or more network coding parameters comprising a rateless code. The transmitting device may generate, for the at least one encoded PDU, at least one corresponding PDU header. The transmitting device may output the at least one encoded PDU and the at least one corresponding PDU header from the L2 layer to a lower layer of the transmitting device for transmission to one or more receiving devices.

    Allocation of antennas for energy harvesting or data communication
    2.
    发明授权
    Allocation of antennas for energy harvesting or data communication 有权

    公开(公告)号：US12153992B2

    公开(公告)日：2024-11-26

    申请号：US18184932

    申请日：2023-03-16

    Applicant: QUALCOMM Incorporated

    Inventor： Kangqi Liu ,  Jing Lei

    IPC: G06K7/10

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may allocate, for at least a period of time, one or more first antennas for energy harvesting from a transmission. The UE may allocate, for at least the period of time, one or more second antennas for data communication. Numerous other aspects are described.

    PACKET ENCODING BASED ON RAPTOR CODES TO ENABLE ADAPTIVE PHYSICAL LAYER ERROR RATE DETERMINATION OR SELECTION
    4.
    发明公开
    PACKET ENCODING BASED ON RAPTOR CODES TO ENABLE ADAPTIVE PHYSICAL LAYER ERROR RATE DETERMINATION OR SELECTION 审中-公开

    公开(公告)号：US20230198668A1

    公开(公告)日：2023-06-22

    申请号：US17996072

    申请日：2020-04-24

    Applicant: QUALCOMM Incorporated

    Inventor： Kangqi Liu ,  Changlong Xu ,  Liangming Wu ,  Jian Li ,  Hao Xu

    IPC: H04L1/00

    CPC classification number: H04L1/0064 ,  H04L1/0046 ,  H04L1/0041

    Abstract: In one aspect of the disclosure, a method of wireless communication performed by a receiving device includes receiving, from a transmitting device, a plurality of encoded packets each including at least one respective physical (PHY) layer symbol. The method includes decoding the plurality of encoded packets based on a raptor code to generate received data. The method also includes determining a signal-to-interference-plus-noise ratio (SINR) associated with receiving the plurality of encoded packets, receiving an indication from the transmitting device, or determining a channel quality indicator (CQI) or a modulation and coding scheme (MCS) associated with receiving the plurality of encoded packets. The method further includes adaptively determining a PHY packet error rate associated with the plurality of encoded packets based on the SINR, the indication, the CQI, or the MCS. Other aspects and features are also claimed and described.

    PORT SELECTION CODEBOOK ENHANCEMENTS FOR SPATIAL AND FREQUENCY DOMAIN DENSITY RECIPROCITY
    5.
    发明公开
    PORT SELECTION CODEBOOK ENHANCEMENTS FOR SPATIAL AND FREQUENCY DOMAIN DENSITY RECIPROCITY 审中-公开

    公开(公告)号：US20230170963A1

    公开(公告)日：2023-06-01

    申请号：US18005939

    申请日：2020-09-09

    Applicant: QUALCOMM Incorporated

    Inventor： Liangming Wu ,  Chenxi Hao ,  Yu Zhang ,  Kangqi Liu ,  Min Huang ,  Rui Hu ,  Qiaoyu Li ,  Chao Wei ,  Hao Xu ,  Wanshi Chen

    IPC: H04B7/06 ,  H04W72/23

    CPC classification number: H04B7/0626 ,  H04W72/23

    Abstract: Port selection codebook enhancements are disclosed for spatial and frequency domain density (FDD) reciprocity. A base station may generate and signal a channel state information (CSI) report configuration including configuration of multiple CSI-reference signal (CSI-RS) port groups, wherein each group includes one or more CSI-RS ports, and each group is associated with one or more codebook subset restrictions (CBSRs). Using the configured restrictions of the CBSRs, served user equipments (UEs) may determine linear combination coefficient feedback based on channel measurements of selected port groups and signals the feedback to the base station. Once the base station receives the feedback it may then determine a hybrid CSI-RS codebook using both the configured CSI-RS port groups and the linear combination coefficients. The base station may then transmit downlink data encoded with a precoding matrix selected from the codebook. Other aspects and features are also claimed and described.

    Raptor code feedback
    6.
    发明授权
    Raptor code feedback 有权

    公开(公告)号：US12273193B2

    公开(公告)日：2025-04-08

    申请号：US17759620

    申请日：2020-03-13

    Applicant: QUALCOMM Incorporated

    Inventor： Kangqi Liu ,  Changlong Xu ,  Jian Li ,  Liangming Wu ,  Hao Xu

    IPC: H04L1/00 ,  H03M13/37

    Abstract: Methods, systems, and devices for wireless communications are described. An encoding device may encode a set of source symbols using one or more raptor codes to generate a first set of encoded symbols and may transmit the first set of encoded symbols to a decoding device. The decoding device may successfully recover a source symbol of the set of source symbols from the first set of encoded symbols and may transmit an indication of the source symbol to the encoding device. The encoding device may encode one or more source symbols of the set of source symbols using the one or more raptor codes to generate a second set of encoded symbols based on receiving the indication of the source symbol and may transmit the second set of encoded symbols to the decoding device.

    Joint broadcast and unicast design for multiple-input multiple-output systems
    7.
    发明授权
    Joint broadcast and unicast design for multiple-input multiple-output systems 有权

    公开(公告)号：US11909470B2

    公开(公告)日：2024-02-20

    申请号：US17797382

    申请日：2020-03-27

    Applicant: QUALCOMM INCORPORATED

    Inventor： Liangming Wu ,  Kangqi Liu ,  Changlong Xu ,  Jian Li ,  Hao Xu

    IPC: H04L1/02 ,  H04B7/0452 ,  H04L1/16

    CPC classification number: H04B7/0452 ,  H04L1/16

    Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an encoded transmission via a broadcast to multiple user equipment (UE). Subsequently, the multiple UEs may transmit assistance information to the base station based on attempting to decode the broadcasted encoded transmission. If the decoding is unsuccessful for at least one UE, the base station may then transmit an additional encoded transmission via a unicast or multicast message to the UEs that were unsuccessful. Additionally, the base station may transmit configuration information for the multiple UEs to receive the encoded transmissions and to transmit the assistance information. For example, the configuration information may include portion information for how long the encoded transmission is transmitted via the broadcast, via the unicast, when to transmit the assistance information, etc. In some cases, the configuration information may be based on UE metrics of the multiple UEs.

    INTERLEAVER FOR CONSTELLATION SHAPING
    9.
    发明公开
    INTERLEAVER FOR CONSTELLATION SHAPING 审中-公开

    公开(公告)号：US20240007226A1

    公开(公告)日：2024-01-04

    申请号：US18253147

    申请日：2021-01-13

    Applicant: QUALCOMM Incorporated

    Inventor： Liangming Wu ,  Kexin Xiao ,  Changlong Xu ,  Jian Li ,  Kangqi Liu ,  Ruiming Zheng ,  Ori Shental ,  Hao Xu ,  Thomas Joseph Richardson

    IPC: H04L1/00 ,  H04L27/34

    CPC classification number: H04L1/0071 ,  H04L1/0042 ,  H04L27/3411

    Abstract: Aspects of the disclosure relate to wireless communication with a waveform configured according to probabilistic constellation shaping in connection with modulation. A wireless transmission device may determine a sequence of amplitude symbols from a sequence of information bits using a distribution matcher (DM) configured for probabilistic amplitude shaping. The device may further apply error correction coding to encode an information block corresponding to at least a portion of the sequence of amplitude symbols. And the device may generate a sequence of output symbols for transmission based on the encoded information block. In various examples, the device may apply interleaving to one or more of the sequence of amplitude symbols, the information block, the encoded information block, or a combination of the sequence of amplitude symbols and the encoded information block, for the generating of the sequence of output symbols. Other aspects, embodiments, and features are also claimed and described.

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