Paging a user equipment in idle or inactive state

    公开(公告)号:US12022391B2

    公开(公告)日:2024-06-25

    申请号:US17593739

    申请日:2020-10-30

    Applicant: Apple Inc.

    CPC classification number: H04W52/0229 H04W68/02

    Abstract: A user equipment (UE) is grouped into a paging subgroup for the purposes of receiving pages from a network. The UE receives, from the network, a paging configuration for a Radio Resource Control (RRC) idle state or an RRC inactive state paging operation, the paging configuration comprising a paging subgroup identification for the UE and monitors paging occasions based on at least the paging subgroup identification.

    P-BSR enhancements for IAB networks to improve E2E latency

    公开(公告)号:US11985652B2

    公开(公告)日:2024-05-14

    申请号:US17593680

    申请日:2021-01-14

    Applicant: APPLE INC.

    CPC classification number: H04W72/1263 H04W28/0278

    Abstract: Systems and methods for enhancing the use of pre-emptive buffer status reports (pre-BSRs) in wireless communications systems implementing integrated access and backhaul (IAB) networks are disclosed herein. In some cases, an IAB node can re-classify the LCGs of one or more incoming data flows according to such pre-BSR usage. This may involve the use of and extended medium access control (MAC) control element (MAC CE) having more LCG bits than previously contemplated, having sub-LCG bits, or that includes further LCG classification information bits. Other embodiments use a priority index for LCGs in an extended pre-BSR MAC CE. The priority index may include one or more of a priority field, a prioritized bit rate (PBR), and/or a bucket size duration (BSD) that is reported to an IAB donor. Other embodiments leverage the provision of additional grants from an IAB node to a child IAB node to reduce unwanted pre-BSR effects.

    Uplink timing synchronization maintenance in secondary cell group

    公开(公告)号:US11943722B2

    公开(公告)日:2024-03-26

    申请号:US17439451

    申请日:2021-03-31

    Applicant: Apple Inc.

    CPC classification number: H04W56/0005 H04W24/08 H04W74/0833 H04W76/15

    Abstract: Aspects are presented herein of apparatuses, systems, and methods for secondary cell group (SCG) addition. A wireless device may establish communication with a first base station that is comprised in a master cell group (MCG) and a second base station that is comprised in the SCG. The wireless device may maintain timing advance (TA) parameters for performing uplink communication with the second base station. The wireless device may perform a plurality of signal quality measurements after receiving an indication to deactivate the SCG. The wireless device may determine whether to reuse the TA parameters for communicating with the second base station after receiving an indication. The determination may be based on comparing one or more signal quality measurements of the second base station to one or more signal quality thresholds.

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