Non-orthogonal multiple access bandwidth part configuration

    公开(公告)号:US10985880B2

    公开(公告)日:2021-04-20

    申请号:US16418357

    申请日:2019-05-21

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a group-specific radio network temporary identifier (RNTI) associated with non-orthogonal multiple access (NOMA); receive an indication of whether the group-specific RNTI is associated with contention-based NOMA or contention-free NOMA; and selectively use a group-specific multiple access (MA) signature or a UE-specific MA signature for a NOMA transmission based at least in part on the indication. Numerous other aspects are provided.

    MANAGING BROADCAST CHANNELS BASED ON BANDWIDTH

    公开(公告)号:US20210044380A1

    公开(公告)日:2021-02-11

    申请号:US16937504

    申请日:2020-07-23

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive signaling that configures a downlink bandwidth for a broadcast channel transmission (e.g., a physical downlink control channel transmission). The UE may determine a bandwidth of the capability is less than the downlink bandwidth, and monitor search space occasions in a period to receive samples of the broadcast channel. The period and the search space occasions may be associated with a control resource set and a search space set. The UE may receive the samples in non-overlapping subbands of the bandwidth according to the bandwidth capability, and detect the broadcast channel based on the samples. The UE may additionally monitor repeated transmission occasions in the period based on detecting the broadcast channel to detect a second broadcast channel (e.g., a physical downlink shared channel).

    Beam specific timing advance command parameters

    公开(公告)号:US10893496B2

    公开(公告)日:2021-01-12

    申请号:US16193736

    申请日:2018-11-16

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for adjusting timing advance command parameters for specific beam pair links (BPLs) in a wireless communications system. In some cases, a base station may determine that transmission timing at a UE may be misaligned. The may send a timing advance (TA) command for the BPL. A UE may utilize more than one BPL, and may switch communications from a first BPL to second BPL. The second BPL may have a different timing misalignment than the first BPL, and the TA command sent by the base station may be insufficient to correct the timing misalignment of the second BPL. The base station may adjust the TA command parameters (e.g., TA command size or TA command granularity) so that the timing misalignment of the second BPL may be corrected.

    CONFIGURING A MAXIMUM NUMBER OF LAYERS
    277.
    发明申请

    公开(公告)号:US20200336893A1

    公开(公告)日:2020-10-22

    申请号:US16914014

    申请日:2020-06-26

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may send a capabilities report to a base station. The capabilities report may include an explicit indication that the UE is capable of receiving a maximum layer radio resource control (RRC) parameter, or may include ambiguous (e.g., multiple) capabilities. The base station may receive the capabilities report, and may determine whether to transmit a maximum layer RRC parameter based on the explicit indication, or the ambiguous capabilities, which indicates a maximum number of layers to be used for subsequent communications. If the UE is capable of receiving the maximum layer RRC parameter, the base station may send the maximum layer RRC parameter to the UE, and may perform wireless communications according to the indicated maximum number of layers.

    Search space design for control channel in wireless communication

    公开(公告)号:US10791548B2

    公开(公告)日:2020-09-29

    申请号:US15291666

    申请日:2016-10-12

    Abstract: Aspects of the present disclosure provide various flexible search space designs that can handle UEs with various capabilities and limitations. In some aspects of the disclosure, the downlink bandwidth may be divided into several self-contained sub-bands. Each sub-band may include one or more OFDM subcarriers or tones, and each UE may be configured to monitor one or more of the sub-bands for its downlink control channel. The sub-band is self-contained in such a way that each sub-band includes CCEs that are mapped to resource elements contained in the same sub-band. In some aspects of the disclosure, different sub-bands can be configured with the different transmission modes and pilot densities. The transmission mode, pilot density, and layer-ID may be determined as a function of each UE's search space.

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