Conditional handover (CHO) execution with network slice service continuity prioritization

    公开(公告)号:US11611918B2

    公开(公告)日:2023-03-21

    申请号:US17239107

    申请日:2021-04-23

    Abstract: Systems, methods, apparatuses, and computer program products for conditional handover (CHO) execution with network slice service continuity prioritization are provided. A radio resource control (RRC) reconfiguration message sent by a source radio access network (RAN) node to the user equipment (UE) may include, for each CHO configuration, an associated network slice-related priority index. The UE may take this index into account when selecting a suitable cell during CHO recovery. Additionally, or alternatively, the RRC reconfiguration message sent by a source RAN node may include, for each CHO configuration, an associated network slice support information of the candidate target cell. The message may also include network slice remapping information for any network slice associated with one of the candidate target cells. Using the above network slice-related information received from the network, the UE can prioritize the cell to select during CHO recovery in case more than one suitable cell is available.

    TIMING ADVANCE RESOURCE MANAGEMENT
    6.
    发明公开

    公开(公告)号:US20240340946A1

    公开(公告)日:2024-10-10

    申请号:US18296911

    申请日:2023-04-06

    CPC classification number: H04W74/006 H04W36/00725 H04W74/0833

    Abstract: A user equipment apparatus (UE) includes processor(s) and memory storing instructions. The instructions, when executed by the processor(s), cause the UE at least to, establish a connection with a control network node via a serving cell, where the serving cell is supported by a source network node; receive, from the control network node and/or the source network node, timing advance (TA) cell configurations for a set of timing advance (TA) cells, where the TA cell configurations include a TA-associated random access (RA) configuration, where the set of TA cells includes first TA cells that include candidate target cells with which the UE may connect and/or other TA cells which are requested by at candidate target cells and which the UE may connect with in case the UE connects with the one of the candidate target cells; and acquire TA for the TA cell based on the TA-associated RA configuration.

    AVOIDING CHO CANCELLATION OR RE-INITIALISATION IN CASE OF SCG RECONFIGURATION

    公开(公告)号:US20240284198A1

    公开(公告)日:2024-08-22

    申请号:US18111050

    申请日:2023-02-17

    CPC classification number: H04W24/02 H04W36/00835

    Abstract: There is provided an apparatus that includes at least one processor and at least one memory storing instructions. The instructions, when executed by the at least one processor, cause the apparatus at least to, receive a list of features of radio resource control (RRC) configuration, where the list is provided by a target secondary node (target SN) of a conditional handover (CHO) procedure, and where the list indicates, for each feature of the list of features of RRC configuration, whether a change in the respective feature requires cancellation or re-initialization of CHO; and, during the CHO procedure, based on information regarding a secondary cell group (SCG) reconfiguration for a source secondary node (source SN), compare the information with the list to determine whether the SCG reconfiguration requires cancellation or re-initialization of the CHO procedure.

    Conditional proactive discontinuous reception (DRX) measurement

    公开(公告)号:US11564119B2

    公开(公告)日:2023-01-24

    申请号:US17204498

    申请日:2021-03-17

    Abstract: Systems, methods, apparatuses, and computer program products for conditional proactive discontinuous reception (DRX) measurement are provided. For example, a user equipment (UE) may be in a DRX active state (e.g., where the DRX is used) and configured to proactively measure for radio problems. Another example may relate to a network-controlled implementation where the serving network node (e.g., a base station (BS)) may signal the UE a condition and a configuration for the proactive DRX measurement. Another example may relate to a UE-controlled implementation for improving service unavailability using DRX operation. For example, the serving BS may signal, to the UE, proactive DRX measurement assistance information.

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