DEFAULT BEAMS FOR PDSCH, CSI-RS, PUCCH AND SRS

    公开(公告)号:WO2022151190A1

    公开(公告)日:2022-07-21

    申请号:PCT/CN2021/071831

    申请日:2021-01-14

    IPC分类号: H04W72/04

    摘要: A method and apparatus configuring default beams are described. In some embodiments, the method of wireless communication at a User Equipment (UE) comprises: receiving, from a base station, configuration information for configuring a default beam for the physical downlink shared channel (PDSCH) to use on condition that an offset between reception of downlink control information (DCI) in the scheduling physical downlink control channel (PDCCH) and corresponding PDSCH is less than a threshold and at least one Transmission Configuration Indicator (TCI) states includes spatial receiving parameters for configuring a quasi-co-location; configuring, by the UE, a default beam configuration for the PDSCH based on the configuration information and a monitored control resource set (CORESET) with a lowest CORESET identifier (ID) from among a set of CORESETs in a latest slot in a same bandwidth part (BWP), wherein at least one CORSET of the set of CORESETs includes more than one TCI state; and receiving a transmission using the default beam.

    WIRELESS DEVICE INITIATED CHANNEL OCCUPANCY IN UNLICENSED SPECTRUM

    公开(公告)号:WO2022077331A1

    公开(公告)日:2022-04-21

    申请号:PCT/CN2020/121123

    申请日:2020-10-15

    IPC分类号: H04W74/00

    摘要: This disclosure relates to techniques for a wireless device to initiate channel occupancy in unlicensed spectrum in a wireless communication system. The wireless device may establish a wireless link with a cellular base station. The wireless device may determine to perform an uplink transmission to the cellular base station on an unlicensed frequency channel. The wireless device may determine whether the cellular base station has channel occupancy of the unlicensed frequency channel. The wireless device may determine whether to initiate channel occupancy of the unlicensed frequency channel. The decision whether to initiate channel occupancy may be based at least in part on whether the cellular base station has channel occupancy of the unlicensed frequency channel.