Reservation of Radio resources for Preemption in a Wireless Network

    公开(公告)号:US20210127383A1

    公开(公告)日:2021-04-29

    申请号:US17078222

    申请日:2020-10-23

    IPC分类号: H04W72/04 H04L1/18 H04W72/10

    摘要: A wireless device receives one or more radio resource control (RRC) messages. The RRC messages comprise: one or more first feedback parameters for selecting first feedback radio resources of a sidelink; and one or more second feedback parameters for selecting second feedback radio resources of the sidelink. A sidelink transmission comprising sidelink control information (SCI) indicating a priority level of the sidelink transmission is received. Based on the priority level, one or more radio resources are selected from one of: the first feedback radio resources based on the one or more first feedback parameters; and the second feedback radio resources based on the one or more second feedback parameters. A hybrid automatic repeat request (HARQ) feedback for the sidelink transmission is transmitted via the selected one or more radio resources.

    Resource Selection Based on Sensing Sidelinks by Wireless Device

    公开(公告)号:US20210050979A1

    公开(公告)日:2021-02-18

    申请号:US16992158

    申请日:2020-08-13

    摘要: A wireless device initializes a candidate resource set. The candidate resource set comprises candidate resources in a selection window. The wireless device receives a second sidelink transmission. The second sidelink transmission comprises sidelink control information (SCI). The SCI indicates first resources during the selection window. The SCI indicates a priority of the second sidelink transmission. The priority is used for excluding the first resources from the candidate resource set. The wireless device excludes the first resources from the candidate resource set based on the priority being higher than a first priority threshold. The wireless device selects second resources from the candidate resource set based on the excluding of the first resources from the candidate resource set. The wireless device transmits a first sidelink transmission via the second resources.

    Sidelink Downlink Control Information Configuration

    公开(公告)号:US20210227517A1

    公开(公告)日:2021-07-22

    申请号:US17134891

    申请日:2020-12-28

    IPC分类号: H04W72/04

    摘要: A wireless device receives a sidelink (SL) downlink control information (DCI). The SL DCI indicates: one or more first frequency domain resources; one or more first time domain resources; and a periodicity. One or more SL control information (SCI) indicating the periodicity and one or more first SL transmissions is transmitted via a first set of SL resources. The first set of SL resources are determined based on the one or more first frequency domain resources and the one or more first time domain resources. One or more second SL transmissions are transmitted via a second set of SL resources determined based on: the one or more first frequency domain resources; the one or more first time domain resources; and the periodicity.

    Triggering a Radio Resource Selection

    公开(公告)号:US20210144726A1

    公开(公告)日:2021-05-13

    申请号:US17090769

    申请日:2020-11-05

    IPC分类号: H04W72/08 H04B17/318 H04L5/00

    摘要: A wireless device triggers a first resource selection procedure for a sidelink transmission. A first ratio from ratios is determined for the first resource selection procedure. The first ratio indicates a first portion of first candidate radio resources. A second resource selection procedure for the sidelink transmission is triggered. A second ratio from the ratios is determined for the second resource selection procedure. The second ratio indicates a second portion of second candidate radio resources. Second remaining candidate radio resources are determined based on excluding third radio resource(s) from the second candidate radio resources. A RSRP of the third radio resource(s) is higher than a second RSRP threshold. Fourth radio resource(s) are selected from the second remaining candidate radio resources, based on a number of the second remaining candidate radio resources being more than the second portion of the second candidate radio resources.

    Coverage Enhancement with Frequency Selective Transmission

    公开(公告)号:US20210337568A1

    公开(公告)日:2021-10-28

    申请号:US17242358

    申请日:2021-04-28

    IPC分类号: H04W72/12 H04W72/04

    摘要: Described are embodiments for frequency selective transmission. In an embodiment, a wireless device receives a downlink control information indicating a transmission via uplink resources comprising sub-bands; and a sounding reference signal resource indicator (SRI). The wireless device selects, based on the SRI, one or more sounding reference signal (SRS) resources. Uplink precoders are determined for the transmission. The uplink precoders include an uplink precoder that is determined, for each respective sub-band of the sub-bands, based on a transmission precoder of the one or more SRS resources transmitted via the respective sub-band. The wireless device transmits, based on the determined uplink precoders, a transport block of the transmission via the uplink resources.