MULTICAST COMMUNICATION WITH CROSS-CARRIER SCHEDULING

    公开(公告)号:US20230328743A1

    公开(公告)日:2023-10-12

    申请号:US17719330

    申请日:2022-04-12

    IPC分类号: H04W72/12 H04W4/06 H04W48/12

    摘要: Methods, systems, and devices for wireless communication are described. A device may receive control signaling indicating a cell configuration associated with a first cell of a set of cells. The cell configuration may indicate a scheduling configuration associated with the first cell and a second cell of the set of cells for multicast communication. The device may monitor for a downlink control channel associated with the multicast communication on one or both of the first cell or the second cell based on the control signaling. The device may monitor for a downlink data channel associated with the multicast communication on one or both of the first cell or the second cell based on the monitoring of the downlink control channel. The device may receive the multicast communication on one or both of the first cell or the second cell based on the monitoring of the downlink data channel.

    Configuration for group-common downlink channels with repetitions

    公开(公告)号:US11729769B2

    公开(公告)日:2023-08-15

    申请号:US17472452

    申请日:2021-09-10

    IPC分类号: H04W4/00 H04W72/1273 H04L1/08

    CPC分类号: H04W72/1273 H04L1/08

    摘要: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a group-common physical downlink shared channel (PDSCH), where the group-common PDSCH is repeated for a number of repetitions. Accordingly, the UE may determine this number of repetitions and then monitor for the group-common PDSCH based on the number of repetitions. In some implementations, the group-common PDSCH may include a semi-static repetition scheme, where the number of repetitions is indicated via a group aggregation factor. Additionally or alternatively, the group-common PDSCH may include a dynamic repetition scheme, where the number of repetitions is indicated via a group repetition number. Additionally, the techniques described herein may enable the configuration for the repeated group-common PDSCH to include gaps between each repetition of the group-common PDSCH and for the UE to transmit acknowledgment feedback for the repetitions of the group-common PDSCH.

    Quasi-colocation indication after downlink transmission

    公开(公告)号:US11722278B2

    公开(公告)日:2023-08-08

    申请号:US17208349

    申请日:2021-03-22

    摘要: Quasi-colocation (QCL) indication is discussed after downlink transmission. In the management of multiple transmission-reception point (TRP) downlink transmissions, a second indication of a QCL assumption for a particular downlink transmission may be transmitted to receiving user equipment (UEs) after transmission of the downlink transmission. Once a TRP passes a listen before talk (LBT) procedure in a first time interval, it may send a first downlink control information (DCI) with indication of a first QCL assumption for the transmission in the first time interval. The TRP then transmits the downlink transmission intended for part of the multi-TRP downlink transmission. Upon receiving an indication that another of the TRPs was unsuccessful in its part of the multi-TRP transmission, the TRP may transmit a second DCI in a subsequent time interval with adjustments to the QCL assumption for the UEs to use in processing the downlink transmission from the first time interval.

    Retransmission and fallback for autonomous uplink transmission

    公开(公告)号:US11690066B2

    公开(公告)日:2023-06-27

    申请号:US16525410

    申请日:2019-07-29

    摘要: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an autonomous uplink (AUL) transmission to a base station using a configured resource set, the AUL transmission comprising reference signals and data signals. The UE may determine whether a response signal was received from the base station in response to the AUL transmission. The UE may determine whether the response signal indicates that the base station received the reference signals, or the reference signals and the data signals. The UE may select an uplink transmission scheme to use for subsequent transmissions to the base station, the selected uplink transmission scheme based at least in part on the determination of whether the response signal was received from the base station and whether the response signal indicates that the base station received the reference signals or the reference signals and the data signals.