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    HANDLING OF RADIO FREQUENCY FRONT-END GROUP DELAYS FOR ROUND TRIP TIME ESTIMATION
    66.
    发明申请
    HANDLING OF RADIO FREQUENCY FRONT-END GROUP DELAYS FOR ROUND TRIP TIME ESTIMATION 有权

    公开(公告)号：US20220007226A1

    公开(公告)日：2022-01-06

    申请号：US17476316

    申请日：2021-09-15

    Applicant: QUALCOMM Incorporated

    Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Joseph Binamira SORIAGA ,  Alexandros MANOLAKOS ,  Naga BHUSHAN ,  Guttorm Ringstad OPSHAUG ,  Sven FISCHER

    IPC: H04W24/10 ,  H04W72/04 ,  H04W64/00

    Abstract: Disclosed are techniques for handling of radio frequency front-end group delays (GDs) for round trip time (RTT) estimation. In an aspect, a network entity determines information indicating a network total GD and a user equipment (UE) determines information indicating a UE total GD. The network entity transmits one or more RTT measurement (RTTM) signals to the UE, each including a RTTM waveform. The UE determines one or more one or more RTT response (RTTR) payloads for one or more RTTR signals, each including a RTTR waveform. The UE transmits the RTTR signal(s) to the network entity. For each RTTR signal, a transmission time of the RTTR waveform and/or the RTTR payload is/are determined based on the UE total GD. The network entity determines a RTT between the UE and the network entity based on the RTTM signal(s), the RTTR signal(s), and the information indicating the network total GD.

    VARIABLE SPREADING FACTOR CODES FOR NON-ORTHOGONAL MULTIPLE ACCESS
    67.
    发明申请
    VARIABLE SPREADING FACTOR CODES FOR NON-ORTHOGONAL MULTIPLE ACCESS 有权

    公开(公告)号：US20210399823A1

    公开(公告)日：2021-12-23

    申请号：US17359150

    申请日：2021-06-25

    Applicant: QUALCOMM Incorporated

    Inventor： Seyong PARK ,  Jing LEI ,  Renqiu WANG ,  Joseph Binamira SORIAGA ,  Naga BHUSHAN ,  Tingfang JI

    IPC: H04J13/00 ,  H04J13/20 ,  H03M7/30 ,  H04J13/22 ,  H04J13/14 ,  H04L1/00 ,  H04L5/00 ,  H04J11/00

    Abstract: Aspects of the present disclosure provide techniques for variable spreading factor codes for non-orthogonal multiple access (NOMA). In an exemplary method, a base station assigns, from a first codebook of N short code sequences of length K, a subset of the short code sequences to a number of user equipments (UEs); receives a signal including uplink data or control signals from two or more of the UEs, wherein a first uplink data or control signal is sent using a first subsequence of one of the assigned short code sequences, and a second uplink data or control signal is sent using a second subsequence of one of the assigned short code sequences or using one of the assigned short code sequences; and decodes each uplink data or control signal in the signal based on the assigned short code sequences and subsequences of the assigned the short code sequences.

    CHANNEL STATE INFORMATION FEEDBACK COMPRESSION
    68.
    发明申请
    CHANNEL STATE INFORMATION FEEDBACK COMPRESSION 有权

    公开(公告)号：US20210384945A1

    公开(公告)日：2021-12-09

    申请号：US17309469

    申请日：2019-12-12

    Applicant: QUALCOMM Incorporated

    Inventor： Qiaoyu LI ,  Chenxi HAO ,  Liangming WU ,  Joseph Binamira SORIAGA ,  Wanshi CHEN ,  Peter GAAL

    IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/0456

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, based at least in part on a codebook, a set of beams to feedback in a channel state information (CSI) feedback communication, and may identify one or more beam groups associated with the set of beams. The UE may select respective one or more transfer domain bases, from a plurality of transfer domain bases, for each beam group of the one or more beam groups, and may determine a plurality of values, for a plurality of bits, that represent beam group identification information associated with the one or more beam groups and transfer domain basis selection information associated with the respective one or more transfer domain bases. The may transmit, to a base station (BS), the plurality of bits in the CSI feedback communication. Numerous other aspects are provided.

    FREQUENCY / TIME SELECTIVE PRECODING FOR POSITIONING REFERENCE SIGNALS
    69.
    发明申请
    FREQUENCY / TIME SELECTIVE PRECODING FOR POSITIONING REFERENCE SIGNALS 有权

    公开(公告)号：US20210344391A1

    公开(公告)日：2021-11-04

    申请号：US17353614

    申请日：2021-06-21

    Applicant: QUALCOMM Incorporated

    Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Joseph Binamira SORIAGA ,  Tao LUO ,  John Edward SMEE ,  Naga BHUSHAN

    IPC: H04B7/0456 ,  H04L5/00

    Abstract: Disclosed are techniques for transmitting and processing reference signals for positioning estimation over a multipath multiple-input multiple-output (MIMO) channel. In aspects, a first node configures first and second reference signal resource sets for transmission of first and second sets of reference signals, wherein the first and second reference signal resource sets occur on first and second subbands of, and/or during first and second time intervals on, the MIMO channel, wherein each reference signal resource in the first and second reference signal resource sets utilize at least first and second MIMO precoders, and transmits, to a second node over the MIMO channel, the first and second sets of reference signals, wherein the first node transmits the first and second sets of reference signals to assist the second node to perform a positioning measurement based on joint processing of the first and second sets of reference signals.

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