Method for transmitting RRC message and wireless device

    公开(公告)号:US10999781B2

    公开(公告)日:2021-05-04

    申请号:US16348815

    申请日:2017-01-09

    Abstract: One disclosure of the present specification provides a method by which a wireless device transmits an RRC message. The method can comprise the steps of: allowing, an AS layer of the wireless device, to acquire an NAS signaling request message, an RRC establishment cause field, and a call type field from an NAS layer; checking the acquired RRC establishment cause field and the call type field; determining, when the NAS signaling request message includes user data according to an optimization plan through a control plane, whether to perform or skip an examination for access blocking (AB) based on the RRC establishment cause field and/or the call type field; and transmitting, when blocking is not achieved or when the examination is skipped according to the examination result, an RRC connection request message to a base station so as to transmit the NAS signaling request message including the user data.

    Method for managing session and SMF node

    公开(公告)号:US10798618B2

    公开(公告)日:2020-10-06

    申请号:US16065083

    申请日:2017-12-04

    Abstract: The one disclosure of the present specification proposes a method for managing session. The method may be performed by a session management function, SMF, node and comprise: generating a packet data unit, PDU, session for a user equipment, UE; receiving, from an access and mobility management function, AMF, node, information about the UE; and determining, based on the information, whether to transmit an indication for notifying a user plane function, UPF, node to discard a downlink data for the PDU session of the UE. The determination may be dependent on whether the PDU session corresponds to a first service provided to the UE.

    Method and wireless device for handling PDU session in 5G mobile communication

    公开(公告)号:US10743361B2

    公开(公告)日:2020-08-11

    申请号:US16573996

    申请日:2019-09-17

    Abstract: Systems and techniques for handling a protocol data unit (PDU) session by a wireless device implementing an access stratum (AS) layer and a non-access stratum (NAS) layer in a wireless communication system. An example technique includes determining, by the AS layer of the wireless device, whether a user plane for the PDU session is activated or released; transferring, by the AS layer and to the NAS layer of the wireless device based on a determination that the user plane for the PDU session is activated, first information indicating that the user plane for the PDU session is activated; and transferring, by the AS layer and to the NAS layer of the wireless device based on a determination that the user plane for the PDU session is released, second information indicating that the user plane for the PDU session is released.

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