Techniques for determining group identification and a downlink assignment index for enhanced dynamic codebooks

    公开(公告)号:US11849462B2

    公开(公告)日:2023-12-19

    申请号:US17196529

    申请日:2021-03-09

    CPC classification number: H04W72/23 H04B7/0417 H04B7/0482

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more downlink control information (DCI) messages scheduling downlink transmissions associated with different groups, where feedback for the downlink transmissions may be transmitted during a same time period. The UE may index the received DCI messages based on a set of serving cell indices and monitoring occasion indices, and the UE may select a DCI message from the indexed DCI messages. The UE may identify, based on an index associated with the DCI messages, a first DCI message that has a format that includes a group index field. The UE may identify, from the group index field of the identified DCI message, a group index value that indicates a first group, and the UE may transmit a feedback message that includes at least a codebook that is based on the group index value.

    Techniques for dynamic scheduling of reverse sidelink traffic

    公开(公告)号:US11838910B2

    公开(公告)日:2023-12-05

    申请号:US17353405

    申请日:2021-06-21

    CPC classification number: H04W72/20 H04L1/1812

    Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may determine a first set of resources for communications over a sidelink communication link between the first UE and a second UE. The first UE may transmit, to the second UE via the sidelink communication link, a first sidelink control information including a reverse sidelink scheduling indicator based on determining the first set of resources. The first UE may additionally transmit, to the second UE via the sidelink communication link, a second sidelink control information indicating a second set of resources for reverse sidelink transmissions from the second UE to the first UE over the sidelink communication link, where transmitting the second sidelink control information is based on transmitting the first sidelink control information. The first UE may receive, from the second UE, a reverse sidelink message in response to transmitting the second sidelink control information.

    COORDINATED CHANNEL ACCESS TECHNIQUES FOR SIDELINK COMMUNICATIONS

    公开(公告)号:US20230389088A1

    公开(公告)日:2023-11-30

    申请号:US17824660

    申请日:2022-05-25

    CPC classification number: H04W74/0875 H04W74/0808

    Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) in sidelink communications to agree on transmission directions and a traffic pattern for a sidelink channel, where a transmitting UE has higher priority in channel access than a receiving UE. When establishing a connection via sidelink, two or more UEs may agree on a resource pattern for a set of sidelink resources where a first UE has higher priority than a second UE for a first subset of resources. The first UE may be given higher priority in the first subset of resources through adjustments to a channel access procedure for requesting channel access, adjustments to one or more access thresholds or channel access priority classes, contention window adjustments, or any combinations thereof. Layer one signaling may be used to reconfigure channel access priority and the traffic pattern between UEs.

    Reservation techniques for aggregated sidelink communications

    公开(公告)号:US11832218B2

    公开(公告)日:2023-11-28

    申请号:US17387891

    申请日:2021-07-28

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating an aggregated sidelink resource reservation rule for reserving time-contiguous transmission time intervals. The UE may transmit a sidelink control reservation message based on the aggregated sidelink resource reservation rule. The sidelink control reservation message may indicate a starting transmission time interval for reserving a set of time-contiguous transmission time intervals in a sidelink shared channel. Additionally or alternatively, the sidelink control reservation message may indicate a quantity of the set of time-contiguous transmission time intervals reserved for transmission of a set of aggregated sidelink messages. The UE may transmit the set of aggregated sidelink messages via the set of time-contiguous transmission time intervals of the sidelink shared channel indicated in the sidelink control reservation message.

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