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US 2020/0029388 A1Published application
System and methods for session management
AssigneeHuawei Technologies Co., Ltd.
InventorsNgoc Dung DAO, Hang ZHANG, Xu LI
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Abstract
A network architecture and methods of managing packet data unit (PDU) sessions in a network are provided. The methods include PDU session establishment procedures, PDU session modification procedures, PDU session state transfer procedures, PDU session release procedures, and user equipment (UE) handover procedures.
Claims19
A method comprising:
- sending a request, by a session management function (SMF) to an access and mobility management function (AMF), wherein the request includes a N1 session management (SM) information requesting a user equipment (UE) to release a PDU session and a skip indication indicating the AMF to skip transferring the N1 SM information to the UE;
- and
- if the UE is in a connection management idle (CM-IDLE) state and the skip indication is received by the AMF, sending, by the AMF to the SMF, a response indicating that the N1 SM information is not transferred.
A communication system comprising a session management function (SMF) and an access and mobility management function (AMF), wherein:
- the SMF is configured to:
- send a request to the AMF, wherein the request includes a N1 session management (SM) information requesting a user equipment (UE) to release a PDU session and a skip indication indicating the AMF to skip transferring the N1 SM information to the UE;
- the AMF is configured to:
- send a response to the SMF if the UE is in a connection management idle (CM-IDLE) state and the skip indication is received by the AMF, the response indicating that the N1 SM information is not transferred.
1 more element
Dependencies are inferred from the claim text.