INTERLACED PHYSICAL SIDELINK FEEDBACK CHANNEL (PSFCH) MAPPING

    公开(公告)号:US20230354304A1

    公开(公告)日:2023-11-02

    申请号:US18163959

    申请日:2023-02-03

    CPC classification number: H04W72/1263 H04L27/2605

    Abstract: A method of wireless communication performed by a first wireless communication device includes: receiving, in first sidelink (SL) resources of a shared frequency band comprising a first interlace of resource blocks (RBs) within one or more first RB-sets, a first SL communication in a first slot and a second SL communication in a second slot; and transmitting, in second SL resources of the shared frequency band comprising the one or more first RB-sets and a second interlace of RBs, a first SL feedback communication for the first SL communication and a second SL feedback communication for the second SL communication, wherein the transmitting the first SL feedback communication and the second SL feedback communication is based on a mapping of the first SL communication and the second SL communication to the second interlace of RBs in the one or more first RB-sets.

    CHANNEL STATE INFORMATION REFERENCE SIGNAL FOR WIDEBAND OPERATION

    公开(公告)号:US20230353215A1

    公开(公告)日:2023-11-02

    申请号:US18349357

    申请日:2023-07-10

    CPC classification number: H04B7/0626 H04W74/0808 H04L1/0013 H04L5/0051

    Abstract: This disclosure provides systems, methods, and apparatuses for determining whether a channel state information reference signal (CSI-RS) is to be transmitted, and a configuration for transmission of the CSI-RS on a wideband based on an outcome of a listen-before-talk (LBT) operation in multiple sub-bands of the wideband. In one aspect, a base station may transmit sub-band usage information indicating sub-band availability before the CSI-RS, thereby allowing a user equipment (UE) to determine whether the CSI-RS will be transmitted and, if so, on which sub-bands the CSI-RS will be transmitted. Furthermore, rate matching configurations are provided based on whether sub-band usage has been received, based on which sub-bands are available. Still further, power configurations and resource element selection criteria are provided for wideband CSI-RS and CSI feedback.

    SLOT FORMAT VALIDATION
    275.
    发明公开

    公开(公告)号:US20230328725A1

    公开(公告)日:2023-10-12

    申请号:US18044317

    申请日:2020-12-04

    CPC classification number: H04W72/1268 H04W72/566 H04W72/121 H04W72/11

    Abstract: Systems, methods, and mechanisms for modifying or cancelling uplink transmissions using dynamic slot format validation are provided. One aspect of the present disclosure includes a method of wireless communication performed by a user equipment (UE). The method of wireless communication includes determining that an uplink (UL) transmission is configured for a first time period; monitoring for a slot format indicator (SFI) validation associated with the first time period; and determining, based at least in part on the monitoring, whether to transmit the UL transmission during the first time period.

    MAINTAINING CHANNEL OCCUPANCY TIME IN SIDELINK COMMUNICATION

    公开(公告)号:US20230319873A1

    公开(公告)日:2023-10-05

    申请号:US17710642

    申请日:2022-03-31

    CPC classification number: H04W74/0808 H04W74/02

    Abstract: Disclosed are techniques for performing wireless communication. In some aspects, a first user equipment (UE) may determine that one or more physical sidelink feedback channel (PSFCH) instances are scheduled during a channel occupancy time (COT) corresponding to a sidelink transmission by the first UE to a second UE. In some examples, the first UE may transmit a COT maintenance signal during the one or more PSFCH instances, wherein at least one PSFCH symbol in the COT maintenance signal has a cyclic prefix extension.

    DOWNLINK CONTROL INFORMATION FOR DORMANCY INDICATION AND ONE-SHOT HYBRID AUTOMATIC REPEAT REQUEST FEEDBACK

    公开(公告)号:US20230299886A1

    公开(公告)日:2023-09-21

    申请号:US18186628

    申请日:2023-03-20

    CPC classification number: H04L1/1812 H04W72/23

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A user equipment (UE) may receive, via a control channel in a primary cell, one or more downlink control information (DCI) messages that include a secondary cell (SCell) dormancy indication and a request for hybrid automatic repeat request (HARQ) feedback. The DCI messages may have a format associated with downlink scheduling, and fields used to carry the SCell dormancy indication and the request for HARQ feedback may have a configuration that depends on whether the DCI messages are used to schedule a downlink data transmission. Furthermore, in some aspects, a DCI message may include a field that has a value to indicate whether the DCI message does or does not schedule a downlink data transmission, to enable the UE to correctly receive and decode the SCell dormancy indication and the request for HARQ feedback.

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