TRANSMITTING/RECEIVING METHOD FOR ENSURING CONNECTIVITY IN WIRE-LESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20210160740A1

    公开(公告)日:2021-05-27

    申请号:US17267668

    申请日:2019-08-13

    摘要: In one embodiment of the present invention, a method by which an access and mobility management function (AMF) transmits/receives a signal for ensuring connectivity in a wireless communication system comprises the steps of: selecting, by the AMF, at least one next generation radio access network (NG-RAN) on a moving path of a user equipment (UE); and providing, by the AMF, a QoS reservation profile to the selected at least one NG-RAN, wherein the QoS reservation profile includes at least one piece of information about the UE, information about a flow/PDU session for which a resource reservation is required, required QoS-related information, a resource reservation start time and a resource reservation end time.

    OPERATION METHOD OF SIDELINK UE RELATED TO UNICAST LINK IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210120600A1

    公开(公告)日:2021-04-22

    申请号:US16921553

    申请日:2020-07-06

    摘要: A method of operating a first user equipment (UE) in a wireless communication system includes transmitting a physical sidelink shared channel (PSSCH) on a first unicast link among two or more unicast links by the first UE, receiving a physical sidelink feedback channel (PSFCH) related to a hybrid automatic repeat and request-acknowledgment (HARQ-ACK) for the PSSCH by the first UE, and releasing a second unicast link for which radio link failure (RLF) has been declared among the two or more unicast links, based on the RLF and a PC5 link identifier (ID) by the first UE. The PC5 link ID is used to identify the second unicast link for which the RLF has been declared among the two or more unicast links.

    METHOD FOR SUPPORTING AND PROVIDING LADN SERVICE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20200337093A1

    公开(公告)日:2020-10-22

    申请号:US16763453

    申请日:2018-11-12

    摘要: An aspect of the disclosure relates to a method for supporting a local access data network (LADN) service by an access and mobility management function (AMF) in a wireless communication system, and the method may comprise the steps of: providing LADN information for the LADN service to a terminal, wherein the LADN information includes LADN service area information and LADN data network name (DNN) information; acquiring location information of the terminal; when establishment of a packet data unit (PDU) session for providing the LADN service is determined on the basis of the location information of the terminal, transmitting to the terminal a preset message including a request for the establishment of the PDU session; and receiving, from the terminal, a request message for initiating the establishment of the PDU session.

    METHOD, USER DEVICE, AND NETWORK NODE FOR PERFORMING PDU SESSION ESTABLISHMENT PROCEDURE

    公开(公告)号:US20200336937A1

    公开(公告)日:2020-10-22

    申请号:US16959870

    申请日:2018-12-28

    摘要: One disclosure of the present specification provides a method for transmitting, by user equipment, a PDU session establishment request. The method comprises the steps of: receiving a session management message based on an SSC mode from an SMF through an AMF in a state in which a back-off timer associated with a DNN-based congestion control is in operation, wherein the session management message is associated with a DNN to which the DNN based congestion control is applied; and transmitting a PDU session establishment request to the AMF for establishment of a new PDU session associated with the DNN on the basis of the session management message, wherein the PDU session establishment request includes information for preventing rejection of the PDU session establishment request, and the information for preventing the rejection may be used to make the AMF ignore the DNN-based congestion control and transmit the PDU session establishment request to the SMF associated with the new PDU session.

    METHOD FOR TRANSMITTING/RECEIVING IMS VOICE SUPPORT-RELATED SIGNAL BY NG-RAN IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

    公开(公告)号:US20200288367A1

    公开(公告)日:2020-09-10

    申请号:US16648517

    申请日:2018-09-27

    发明人: Laeyoung KIM

    IPC分类号: H04W36/14 H04W8/22 H04W36/36

    摘要: An embodiment of the present invention relates to a method for transmitting/receiving an IP multimedia subsystem (IMS) voice support-related signal by a next generation-radio access network (NG-RAN) in a wireless communication system, the method comprising the steps of: receiving, by the NG-RAN, a request associated with a UE capability for IMS voice from an AMF; checking, by the NG-RAN, whether the UE capability matches network configurations; and transmitting, by the NG-RAN, a response including the result of the check to the AMF, wherein the network configurations include a network configuration for the NG-RAN and a network configuration for a network node which enables IMS voice even when the NG-RAN does not support IMS voice.

    METHOD WHEREBY TERMINAL SELECTS PLMN IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME

    公开(公告)号:US20200008140A1

    公开(公告)日:2020-01-02

    申请号:US16570650

    申请日:2019-09-13

    IPC分类号: H04W48/18 H04W60/00 H04W4/02

    摘要: A method for a User Equipment (UE) in a wireless communication system, the includes transmitting, by the UE which is outside of coverage, a first message for registration to a first cell on a selected first Public Land Mobile Network (PLMN), wherein the first PLMN which is not included in a list related to forbidden PLMNs; receiving, by the UE, a second message related to registration failure with the first PLMN; selecting, by the UE, a second PLMN; and transmitting, by the UE, a third message for registration to a second cell on the selected second PLMN, wherein zero or more PLMNs, which are included in the list related to forbidden PLMNs, are excluded in a selection of the second PLMN, and wherein the first PLMN with which the registration has failed is further excluded in the selection of the second PLMN, although the first PLMN is not included in the list related to forbidden PLMNs.