MBS-key distribution and traffic protection

    公开(公告)号:US11882435B2

    公开(公告)日:2024-01-23

    申请号:US17593506

    申请日:2020-10-29

    Applicant: APPLE INC.

    CPC classification number: H04W12/037 H04L9/0825 H04L9/14 H04W4/08 H04W12/041

    Abstract: MBS key distribution includes processing group information associated with an MB session context received from an AF. At least a portion of the group information comprises a TMGI. A plurality of session join requests received from a plurality of UEs are processed. Each of the plurality of session join requests include the TMGE and are associated with the MB session context. A request associated with the MB session context for transmission to an MB-SMF is encoded. A response associated with the MB session context received from the MB-SMF is processed. The response includes a key derived for each of a portion of the plurality of UEs using a UE ID and the TMGI. A DL NAS message and an N2 message are encoded for the plurality of UEs and a base station, respectively. The DL NAS message and the N2 message include the derived key.

    Control Channel for UE Power Saving
    175.
    发明公开

    公开(公告)号:US20230397218A1

    公开(公告)日:2023-12-07

    申请号:US18450953

    申请日:2023-08-16

    Applicant: Apple Inc.

    Abstract: A downlink control information (DCI), such as a blanking DCI (bDCI) message may be transmitted by a base station (e.g., eNB) and received by a mobile device (e.g., UE). The bDCI may indicate that the eNB will not transmit a subsequent DCI to the UE for a duration of time. The UE may be in continuous reception mode or connected discontinuous reception (C-DRX) mode. The UE may therefore determine to enter a sleep state or take other action. The bDCI may specify an explicit blanking duration, or an index indicating a blanking duration from a lookup table, and/or the blanking duration (and/or a blanking duration offset value) may be determined in advance, e.g., semi-statically. When the UE is in C-DRX mode, the UE may be configured such that either the sleep/wake period of the C-DRX mode or the blanking period of the bDCI may take precedence over the other.

    DEFAULT BEAMS FOR PDSCH, CSI-RS, PUCCH AND SRS
    180.
    发明公开

    公开(公告)号:US20230345477A1

    公开(公告)日:2023-10-26

    申请号:US17598012

    申请日:2021-01-14

    Applicant: Apple Inc.

    CPC classification number: H04W72/1273 H04W72/232 H04W16/28

    Abstract: A method and apparatus configuring default beams are described. In some embodiments, the method of wireless communication at a User Equipment (UE) comprises: receiving, from a base station, configuration information for configuring a default beam for the physical downlink shared channel (PDSCH) to use on condition that an offset between reception of downlink control information (DCI) in the scheduling physical downlink control channel (PDCCH) and corresponding PDSCH is less than a threshold and at least one Transmission Configuration Indicator (ICI) states includes spatial receiving parameters for configuring a quasi-co-location; configuring, by the UE, a default beam configuration for the PDSCH based on the configuration information and a monitored control resource set (CORESET) with a lowest CORESET identifier (ID) from among a set of CORESETs in a latest slot in a same bandwidth part (BWP), wherein at least one CORSET of the set of CORESETs includes more than one TCI state; and receiving a transmission using the default beam.

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