FALLBACK PROCEDURES FOR TWO-STEP RANDOM ACCESS PROCEDURES

    公开(公告)号:SG11202108024PA

    公开(公告)日:2021-08-30

    申请号:SG11202108024P

    申请日:2020-02-03

    Applicant: QUALCOMM INC

    Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally, or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

    Synchronization in wireless communications

    公开(公告)号:AU2017264410B2

    公开(公告)日:2021-05-27

    申请号:AU2017264410

    申请日:2017-03-23

    Applicant: QUALCOMM INC

    Abstract: Aspects of the present disclosure describe synchronizing frequency and/or timing in a wireless communication system. A synchronization channel frequency can be determined as one of a plurality of possible synchronization channel frequencies within a frequency band. A tone of one or more synchronization signals that corresponds to the synchronization channel frequency can be punctured, and the one or more synchronization signals can be transmitted as centered around the synchronization channel frequency.

    MULTI-SLOT SCHEDULING WITH REPETITIVE TRANSMISSION OF A TRANSPORT BLOCK WITH DIFFERENT REDUNDANCY VERSIONS

    公开(公告)号:PH12020550164A1

    公开(公告)日:2021-02-22

    申请号:PH12020550164

    申请日:2020-03-27

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive downlink control information corresponding to a transmission of a transport block over a plurality of transmission time intervals (TTIs). The wireless device may identify a redundancy version sequence for the transport block. The redundancy version may be a pre-defined sequence or may be configured by higher layer signaling based on sequence criterion. The wireless device may transmit or receive a plurality of redundancy versions of the transport block in the plurality of TTIs based at least in part on the redundancy version sequence. In some examples, the plurality of redundancy versions may be determined based at least in part on a starting redundancy version Identified by another wireless device.

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