Method and apparatus for supporting UE-to-network relay communication in a wireless communication system

    公开(公告)号:US11672033B2

    公开(公告)日:2023-06-06

    申请号:US17532432

    申请日:2021-11-22

    CPC classification number: H04W76/12 H04W76/19 H04W88/04

    Abstract: A method and device are disclosed for a remote User Equipment (UE) to support UE-to-Network relay communication. The remote UE establishes a PC5 connection with a first relay UE for a relay communication with a first network node. The remote UE also performs a Radio Resource Control (RRC) connection establishment procedure with the first network node via the first relay UE. Furthermore, the remote UE transmits a first RRC message to a second network node via a second relay UE for requesting RRC connection re-establishment, wherein the first RRC message includes a first Cell Radio Network Temporary Identifier (C-RNTI) of the remote UE. Also, the remote UE receives a second RRC message from the second network node via the second relay UE for re-establishing a RRC connection between the second network node and the remote UE, wherein the second RRC message includes a second C-RNTI of the remote UE.

    Method and apparatus for sidelink logical channel establishment in a wireless communication system

    公开(公告)号:US11252598B2

    公开(公告)日:2022-02-15

    申请号:US16801614

    申请日:2020-02-26

    Abstract: A method and apparatus are disclosed from the perspective of a first UE (User Equipment) to perform sidelink logical channel (SL LCH) establishment. In one embodiment, the method includes the first UE storing a list of sidelink configurations, wherein each entry in the list contains one sidelink configuration and at least one PC5 QoS identifier (PQI) associated with the one sidelink configuration. The method further includes the first UE selecting an entry in the list according to a PQI of a PC5 QoS flow from a sidelink service. The method also includes the first UE establishing a SL LCH for the PC5 QoS flow according to a sidelink configuration of the entry and assigning an identity for the SL LCH. In addition, the method includes the first UE transmitting information to a second UE for the second UE to establish the SL LCH, wherein the information includes at least the identity of the SL LCH, an identity of the PC5 QoS flow, and Transmission-Reception (TX-RX) aligned parameters included in the sidelink configuration. Furthermore, the method includes the first UE transmitting sidelink packet(s) from the PC5 QoS flow on the SL LCH.

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