Joint activation of multiple semi-persistent scheduling configurations in a single message

    公开(公告)号:US11464001B2

    公开(公告)日:2022-10-04

    申请号:US16942475

    申请日:2020-07-29

    Abstract: This disclosure provides systems, methods, and apparatuses for jointly activating or releasing a plurality of semi-persistent scheduling (SPS) configurations using a single downlink control information (DCI) message. In some implementations, a user equipment (UE) receiving the DCI message can determine, for each SPS configuration, a number of time slots between an end of the received DCI message and a beginning of one or more downlink (DL) data frames based on a first value contained in the DCI message. The UE can also determine, for each SPS configuration, a number of time slots between an end of the DL data frames and an instance in time at which the UE is to transmit a hybrid automatic repeat request acknowledgement (HARQ-ACK) based on a second value contained in the DCI message. In some instances, the single DCI message can also jointly activate or release a plurality of configured grant (CG) configurations.

    TECHNIQUES FOR CHANNEL MEASUREMENT REPORTING ACROSS DIFFERENT DISTRIBUTED UNITS (DUS) OF A BASE STATION (BS)

    公开(公告)号:US20220201560A1

    公开(公告)日:2022-06-23

    申请号:US17131379

    申请日:2020-12-22

    Abstract: This disclosure provides systems, methods and apparatuses for a transmission, from a user equipment (UE) to a first distributed unit (DU), of one or more measurement reports including channel measurements of a set of cells associated with a second DU of a same central unit (CU) as the first DU. The UE may transmit the one or more measurement reports according to various reporting format options, including via separate reports for activated and deactivated cells of the second DU, a joint report for activated and deactivated cells of the second DU, or a joint report across a set of DUs including the first DU. The measurement reports may include one or more metrics associated with each cell of a configured cell set and the UE and the DUs of the same CU may activate or deactivate one or more cells for communication with the UE based on the measurement reports.

    CONTENTION-BASED PHYSICAL UPLINK SHARED CHANNEL

    公开(公告)号:US20220150885A1

    公开(公告)日:2022-05-12

    申请号:US17529048

    申请日:2021-11-17

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify uplink (UL) control information (UCI) to transmit during a subframe. The UE may then select a UL channel on which to transmit the UCI based on whether a shared data and control UL channel employs contention-based scheduling. For example, multiple UEs could contend for access to the same semi-persistently scheduled (SPS) physical UL shared channel (PUSCH). Each UE may utilize a different demodulation reference (DMRS) signal cyclic shift to identify their transmissions. In some cases, some UCI, such as channel state information (CSI), may be transmitted on a contention-based PUSCH, while other UCI, such as acknowledgement information, may be transmitted on a physical uplink control channel (PUCCH). In some cases, the channel selection may be based on a configuration received from a base station.

    Autonomous uplink for wideband new radio-unlicensed

    公开(公告)号:US11330612B2

    公开(公告)日:2022-05-10

    申请号:US16738867

    申请日:2020-01-09

    Abstract: Autonomous uplink (AUL) for wideband new radio (NR) unlicensed (NR-U) operations is disclosed. For user equipments (UEs) that have been configured for AUL transmissions and have received an activation signal to activate the AUL capabilities, further indications may be used to enable AUL transmissions on AUL transmission opportunities (TxOPs) that overlap the timing of a current TxOP reserved by a serving base station, but that are allocated outside of the resources reserved for the current TxOP. A UE that identifies a desired, next AUL TxOP that overlaps the current base station-initiated TxOP duration, but is allocated for resources outside of the current TxOP resources determines whether it has obtained an enablement indication either directly from the serving base station or implicitly, based on current conditions at the UE. When the UE determines that it has obtained an enabling indication, it may then perform AUL transmissions via the overlapping AUL TxOP.

    Medium access for shared or unlicensed spectrum

    公开(公告)号:US11297510B2

    公开(公告)日:2022-04-05

    申请号:US14989505

    申请日:2016-01-06

    Abstract: Methods, systems, and devices are described for wireless communication at a UE. A wireless devices may use a shared or unlicensed spectrum configuration based on a prioritization scheme for the shared frequency resources. The prioritization scheme may assign a priority to different operators and may enable devices associated with a prioritized operator to access the shared band over non-prioritized devices. For example, a non-prioritized device may win the channel and begin communicating over the shared or unlicensed spectrum. The non-prioritized device may then periodically cease transmission for a set interval (i.e., a preemption opportunity) and listen for an indication that a prioritized device wishes to use the channel. If a prioritized device begins transmitting (or, in some cases, if the prioritized device transmits a medium preemption indication) the non-prioritized device may relinquish control of the channel.

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