UPLINK BEAM CONTINUATION FOR DOWNLINK BEAM FAILURE RECOVERY

    公开(公告)号:US20220353131A1

    公开(公告)日:2022-11-03

    申请号:US17244777

    申请日:2021-04-29

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station in a wireless communications system using downlink beams and uplink beams. A UE may determine whether to maintain or change an uplink beam of the UE after a downlink beam failure. The UE may receive control signaling indicating a configuration for uplink beam management for use in response to a downlink beam failure detection in a deployment configuration where uplink beams of the UE may be decoupled from downlink beams of the UE. The UE may perform a downlink beam failure recovery (BFR) procedure based on a downlink beam failure of a downlink beam of the UE. The UE may reconfigure an uplink beam based on the configuration and the downlink BFR procedure.

    Methods and apparatus for ACK for SPS reactivation DCI

    公开(公告)号:US11477775B2

    公开(公告)日:2022-10-18

    申请号:US16905631

    申请日:2020-06-18

    Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving a reactivation downlink control information (DCI) associated with a new periodic resource configuration and an updated uplink feedback parameter for a scheduled uplink control information transmission, receiving downlink control information, changing a transmission parameter of the scheduled uplink control information transmission based on the updated uplink feedback parameter, and transmitting the scheduled uplink control information transmission based on the changed transmission parameter to indicate uplink feedback regarding reception of the reactivation DCI.

    RETRANSMISSION OF SEMI-PERSISTENT SCHEDULED GROUP COMMON DOWNLINK SIGNALING

    公开(公告)号:US20220322309A1

    公开(公告)日:2022-10-06

    申请号:US17220764

    申请日:2021-04-01

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more retransmissions of an initial group-common transmission. The UE may receive, in accordance with a first SPS configuration, a group-common transmission of a group-common downlink shared channel, the group-common transmission being associated with a first RNTI. The UE may transmit feedback information for the group-common transmission. The UE may then receive a downlink control information (DCI) message scheduling either a group-common retransmission of the group-common downlink shared channel or a unicast retransmission of the group-common downlink shared channel. The DCI may indicate that either the group-common retransmission is associated with the first RNTI or that the unicast retransmission is associated with a second RNTI that may be different from the first RNTI.

    RANK INDICATOR AND LAYER INDICATOR SIGNALING IN NON-COHERENT JOINT TRANSMISSION CHANNEL STATE INFORMATION

    公开(公告)号:US20220321183A1

    公开(公告)日:2022-10-06

    申请号:US17683036

    申请日:2022-02-28

    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive an indication of first and second channel measurement resources associated with corresponding first and second transmission configuration indicator states. The UE may identify a rank restriction parameter for obtaining channel state information for a joint transmission hypothesis associated with the first and second channel measurement resources. The UE may generate and transmit a channel state information report that includes at least one rank indicator corresponding to the joint transmission hypothesis in accordance with the rank restriction parameter.

    Handling downlink assignment indicators for different types of downlink control information

    公开(公告)号:US11463195B2

    公开(公告)日:2022-10-04

    申请号:US16830132

    申请日:2020-03-25

    Abstract: Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) to identify one or more missed downlink control messages. The UE may use indicators received with downlink control messages to order the downlink control messages and determine if a message is missing. Indicators in different downlink control messages may be transmitted using different numbers of bits, and the UE may use methods to compare the indicators with different bit sizes. The UE may compare all the indicators using the smallest indicator bit size or may compare indicators in sequential pairs, using a shared bit size for indicators having a same bit size and using a smallest bit size for indicators having different bit sizes. After comparing indicators and determining if one or more messages are missing, the UE may notify the base station of any missing downlink control messages using a feedback message.

    TECHNIQUES FOR CONTROL CHANNEL REPETITION FOR CROSS-CARRIER SCHEDULING

    公开(公告)号:US20220304030A1

    公开(公告)日:2022-09-22

    申请号:US17582473

    申请日:2022-01-24

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling identifying a scheduling configuration indicating a first search space set and a second search space set of a scheduling component carrier for scheduling communications on a scheduled component carrier, and may identify a search space set linking configuration for a group of search space sets of the scheduled component carrier based on the scheduling configuration. The UE may identify a set of decoding candidates within the first and second search space sets which are allocated for cross-carrier scheduling of the scheduled component carrier based on the search space set linking configuration. The UE may then receive at least one control message schedules a communication between the base station and the UE over the scheduled component carrier within at least one decoding candidate, and may perform the scheduled communication over the scheduled component carrier.

    SEARCH SPACE SET GROUP SWITCHING FOR CROSS-CARRIER SCHEDULING

    公开(公告)号:US20220303880A1

    公开(公告)日:2022-09-22

    申请号:US17696715

    申请日:2022-03-16

    Abstract: Methods, systems, and devices for wireless communications are described, that provide for configuration and switching between multiple groups of search space sets based on activated serving cells or activated resources for one or more serving cells. An access network entity may configure multiple groups of search space sets, and a user equipment (UE) may monitor for control information in an activated search space set group. A first group of search space sets may be activated based on a serving cell being activated, and the UE may switch to a second group of search space sets when the serving cell is deactivated. Search space set group switching also may be performed based on one or more activated bandwidth parts (BWPs). An access network entity may trigger search space set group switching using explicit signaling, based on cell activation/deactivation, based on a timer, or any combinations thereof.

    Scrambling sequence generation for a multi-transmit receive point configuration

    公开(公告)号:US11419104B2

    公开(公告)日:2022-08-16

    申请号:US16735431

    申请日:2020-01-06

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first transmit receive point (TRP), a downlink control information (DCI) communication, the UE being included in a multi-TRP configuration with the first TRP and a second TRP. The UE may determine information unique to the first TRP. The information unique to the first TRP may be at least one of associated with the DCI communication or included in the DCI communication. The UE may generate a downlink scrambling sequence initialization code, associated with the first TRP, based at least in part on the information unique to the first TRP. The UE may generate a downlink scrambling sequence, associated with the first TRP, based at least in part on the downlink scrambling sequence initialization code associated with the first TRP. Numerous other aspects are provided.

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