METHOD FOR MOVING IMS VOICE SESSION ON NON-3GPP TO 3GPP ACCESS

    公开(公告)号:US20220345949A1

    公开(公告)日:2022-10-27

    申请号:US17753378

    申请日:2020-09-08

    Abstract: Provided in one embodiment of the present specification is a method for user equipment (UE) for an Internet protocol multimedia subsystem (IMS) voice session. The method can comprise the steps of: establishing an EMS voice session by using a non 3GPP interworking function (N3IWF) or an enhanced packet data gateway (ePDG) through non-3rd generation partnership project (3GPP) access; determining that voice is not supported on a current NG-RAN on the basis of that the UE must moves the IMS voice session to a 3GPP access; and handing over a protocol data unit (PDU) session for the IMS voice session of the non-3GPP access to an evolved packet core (EPC) of the 3GPP access on the basis of the determination.

    CALLER INFORMATION VERIFICATION BASED ON PLURALITY OF SIMS

    公开(公告)号:US20220286993A1

    公开(公告)日:2022-09-08

    申请号:US17632208

    申请日:2020-08-04

    Abstract: One disclosure of the present specification provides a method by which an AMF node of a first network performs communication on the basis of a plurality of SIMs. The method comprises the steps of: receiving a registration request message from a terminal through a base station of the first network; receiving, from an SMF node of the first network, a first message including information requesting the activation of a PDU session of the terminal; receiving a second message that includes caller's ID information related to downlink data; and transmitting, to the terminal, a paging message or a non-access stratum (NAS) notification message including the caller's ID information through the base station of the first network.

    IMS SIGNALING
    223.
    发明申请

    公开(公告)号:US20220263874A1

    公开(公告)日:2022-08-18

    申请号:US17628851

    申请日:2020-08-04

    Abstract: A disclosure of the present specification provides a method for a terminal to perform communication related to an IMS. The method may comprise the steps of: receiving, by an NAS layer of a terminal, a first request message from an IMS layer of the terminal, wherein the first request message includes information related to IMS signaling for a non-service attempt and information about a first access category among a plurality of access categories related to an IMS service, and the IMS signaling for the non-service attempt is signaling which does not request the IMS service; and transmitting, by the NAS layer of the terminal, a second request message including the information about the first access category to an RRC layer of the terminal.

    COMMUNICATION BASED ON PLURALITY OF SIMS

    公开(公告)号:US20220240222A1

    公开(公告)日:2022-07-28

    申请号:US17596638

    申请日:2020-07-27

    Abstract: A disclosure of the present specification provides a method for a wireless communication device to perform communication based on a plurality of SIMs. The method may include the steps of: transmitting a request message to a first network node of a second network, the request message including first information pertaining to the plurality of SIMs; and receiving an acceptance message for the request message from the first network node of the second network.

    IDENTIFICATION OF SIDELINK CONNECTION ASSOCIATED WITH MULTIPLE SESSIONS

    公开(公告)号:US20220117017A1

    公开(公告)日:2022-04-14

    申请号:US17309836

    申请日:2020-02-14

    Abstract: A method and apparatus for identification of a sidelink connection associated with multiple sessions in a wireless communication system is provided. A first wireless device establishes a first session based on a first upper layer identifier (ID) of the first wireless device, which is associated with the first session. Then, the first wireless device allocates a lower layer ID of the first wireless device, and transmits the lower layer ID of the first wireless device to the second wireless device. The first wireless device establishes a second session based on a second upper layer ID of the first wireless device, which is associated with the second session, and the lower layer ID of the first wireless device, and performs sidelink transmission for the second session to the second wireless device.

    METHOD OF OPERATING UE IN RELATION TO RELEASE OF SIDELINK RRC CONNECTION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210136848A1

    公开(公告)日:2021-05-06

    申请号:US17085317

    申请日:2020-10-30

    Abstract: A method of operating a first user equipment (UE) in a wireless communication system is disclosed. The method includes establishing two or more PC5 radio resource control (RRC) connections with a second UE by the first UE, and releasing an RRC connection for which sidelink radio link failure (SL RLF) has been declared among the two or more PC5 RRC connections by the first UE. There is a PC5 unicast link associated with the PC5 RRC connection, and the PC5 unicast link for which the SL RLF has been declared and the PC5 RRC connection has been released is indicated by a PC5 link identifier (ID).

    METHOD FOR SELECTING PLMN OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME

    公开(公告)号:US20200213938A1

    公开(公告)日:2020-07-02

    申请号:US16816580

    申请日:2020-03-12

    Abstract: A method for a user equipment (UE) to perform public land mobile network (PLMN) selection in a wireless communication system, and which includes selecting, by the UE, a first PLMN; in response to the first PLMN not providing direct communication resources, selecting, by the UE, a second PLMN providing direct communication resources; performing, by the UE, a registration on the second PLMN; receiving, by the UE, a failed registration code of “PLMN not allowed” due to a failing of the registration on the second PLMN; and performing, by the UE, the direct communication on the second PLMN in a limited service state. Further, the UE remains on the first PLMN based on a normal service state and the UE does not perform an additional PLMN selection during a duration of the direct communication in the second PLMN based on the limited service state.

    METHOD AND SMF FOR SUPPORTING QOS
    230.
    发明申请

    公开(公告)号:US20200128432A1

    公开(公告)日:2020-04-23

    申请号:US16718096

    申请日:2019-12-17

    Abstract: One disclosure of the present specification provides a method by which a session management function (SMF) supports quality of service (QoS). The method can comprise the steps of: determining, on the basis of a QoS flow not being a guaranteed bit rate (GBR) QoS flow in a multi-access (MA) protocol data unit (PDU) session, that a QoS profile is transmitted to both a third generation partnership project (3GPP) access and a non-3GPP access; determining, on the basis of the QoS flow being the GBR QoS flow in the MA PDU session, that the QoS profile is transmitted to only one of the 3GPP access and the non-3GPP access; and transmitting the QoS profile on the basis of the determinations.

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