Non-numerical K1 for group common-physical downlink control channel (GC-PDCCH) grant in multimedia broadcast multicast service (MBMS)

    公开(公告)号:US11997667B2

    公开(公告)日:2024-05-28

    申请号:US17450244

    申请日:2021-10-07

    CPC classification number: H04W72/121 H04L5/0053 H04W72/1263 H04W72/23

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support control of feedback reporting associated with broadcast or multicast transmissions based on indications of non-numerical K1 (NNK1) in associated transmission grants. In aspects, a base station transmits multicast transmission grants that include NNK1s to a set of UEs. The UEs in the set of UEs generate feedback codebooks, for the multicast transmissions, and holds transmission of the codebooks, based on the NNK1 received in the transmission grants until a report triggering event occurs. In aspects, the report triggering event includes receiving a subsequent multicast transmission grant with a valid K1, receiving a subsequent unicast transmission grant with valid K1, or receiving a UE-specific multicast retransmission grant. In aspects, the UEs use the valid K1 in the triggering event to determine a feedback resource to transmit the held feedback codebooks. Other aspects and features are also claimed and described.

    Power saving in new radio multicast
    535.
    发明授权

    公开(公告)号:US11968626B2

    公开(公告)日:2024-04-23

    申请号:US18066866

    申请日:2022-12-15

    CPC classification number: H04W52/0261 H04B7/0413 H04W76/15 H04W88/02

    Abstract: Methods, systems, and devices for wireless communications are described. A method for wireless communication at a user equipment (UE) may include: receiving a multicast bandwidth part configuration for multicast communications between a base station and the UE, where the multicast bandwidth part configuration includes a maximum number of multiple-input, multiple-output layers to be used for the multicast communications; establishing a multicast link with the base station for multicast communications; determining to use a reduced number of antennas for multicast reception than the number of antennas used for unicast reception, or determining that the UE is able to decode the multicast communications prior to a remaining portion of the multicast communications; and receiving the multicast communications via the reduced number of antennas, or reducing the radio frequency power prior to completion of a number of repetitions or retransmissions of the multicast communications.

    Downlink feedback information signaling enhancements

    公开(公告)号:US11968049B2

    公开(公告)日:2024-04-23

    申请号:US17027213

    申请日:2020-09-21

    Abstract: Enhancements to downlink feedback information (DFI) signaling is disclosed. According to the disclosed aspects, indications of DFI presence in downlink control information (DCI) messaging are provided that limit any increase to DCI overhead for uplink grants. In a first aspect, DFI presence may be signaled using unused or disallowed DCI variable states for indication of DFI presence. In another aspect, a separate bit may be added to a DCI message for indicating DFI presence. Additional aspects include repurposing DCI fields which are specific to cell radio network temporary identifier (C-RNTI)-based uplink grants, or may defining a new RNTI (e.g., DFI-RNTI) for indicating DFI presence. Further aspects may provide for radio resource control (RRC) signaling that configures which DCI variable state can be used to indicate DFI presence.

    Techniques for selecting an uplink control information reporting mode

    公开(公告)号:US11956717B2

    公开(公告)日:2024-04-09

    申请号:US17088946

    申请日:2020-11-04

    CPC classification number: H04W48/20 H04L5/001 H04W72/21 H04W72/23

    Abstract: Techniques for wireless communications are described. A mode for reporting uplink control information may be selected when a first serving cell and a second serving cell are both configured with uplink control resources. The reporting modes may include a mode for transmitting uplink control information over one uplink control resource or over multiple uplink control resources. Multiple sets of uplink control information may be separately generated for different sets of component carriers or different transmission/reception points. After selecting the reporting mode, the multiple sets of uplink control information may be transmitted over one or multiple uplink control resources in accordance with the selected reporting mode. Communication devices may switch between the reporting modes based on obtained information or calculations.

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