System and methods for session management

A session management and processor technology, applied in the field of network communication, which can solve problems such as signaling overhead and connection time

Active Publication Date: 2019-08-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current session management process incl...

Method used

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  • System and methods for session management

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0587] In an alternate embodiment, steps 8006 through 8018 may operate as follows:

[0588] Step 8006: SMF sends N11 message (N2 SM PDU session release request, N1 SM PDU session release request, N11 PDU session release notification) to AMF. N1 SM PDU session release request includes PDU session ID and reason.

[0589] The cause may indicate a trigger to establish a new PDU session with the same characteristics (eg, when a procedure related to SSC Mode 2 is invoked).

[0590] SSC mode 2 is defined in TS 23.501 [2] section 5.6.9.

[0591] The N2 SM PDU Session Release Request will release the (R)AN resources associated with the PDU Session (N2 Resource Release Request (PDU Session ID)). The N11 PDU Session Release Notification includes the PDU Session ID used by the AMF to delete the PDU Session Context.

[0592] If the UP of the PDU session is activated, the SMF sends the N1 SM PDU session release request and the N2 SMPDU session release request via the AMF.

[0593] If th...

Embodiment B

[0606] In a further alternative embodiment, steps 8006 to 8018 may operate as follows:

[0607] Step 8006: SMF sends N2 SM PDU session release request, N1 SM PDU session release request, N11 PDU session release notification to AMF. N1 SM PDU session release request includes PDU session ID and reason. The cause may indicate a trigger to establish a new PDU session with the same characteristics (eg, when a procedure related to SSC Mode 2 is invoked). SSC Mode 2 is defined in Section 5.6.9 of TS23.501 [2].

[0608] The N2 SM PDU Session Release Request will release the (R)AN resources associated with the PDU Session (N2 Resource Release Request (PDU Session ID)). The N11 PDU Session Release Notification includes the PDU Session ID used by the AMF to delete the PDU Session Context. If UP of the PDU session is activated, the SMF sends N1 SM PDU session release request and N2 SM PDU session release request. If the UE is unreachable, the SMF sends N11 PDU Session Release Notifica...

Embodiment C

[0623] In a further alternative embodiment, steps 8006 to 8018 may operate as follows:

[0624] Step 8006: SMF sends (N2 SM resource release request, N1 SM information) to AMF. The N1 SM information includes a PDU session release instruction message (PDU session ID, reason). The cause may indicate a trigger to establish a new PDU session with the same characteristics (eg, when a procedure related to SSC Mode 2 is invoked). SSC Mode 2 is defined in TS 23.501 Section 5.6.9. The N2 SM Resource Release Request (PDU Session ID) is used to release the (R)AN resources associated with the PDU Session.

[0625] If the UP of the PDU session is activated, the SMF sends the N1 SM PDU session release instruction and the N2 SM resource release request by invoking the Namf_Communication_N1MessageTransfer and Namf_Communication_N2MessageTrigger service operations, respectively.

[0626] If the UP of the PDU session is deactivated, the SMF requests the UE to release the PDU session by calli...

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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.

Description

[0001] Related Application Cross Reference [0002] This application is related to U.S. Provisional Patent Application Serial No. 62 / 444,251, entitled "System and Method for Session Management," filed January 9, 2017; Serial No. 62, filed January 19, 2017 / 448,239, U.S. Provisional Patent Application, entitled "System and Method for Session Management"; Serial No. 62 / 455,412, filed February 6, 2017, entitled "System and Method for Session Management" U.S. Provisional Patent Application; U.S. Provisional Patent Application Serial No. 62 / 460,533, filed February 17, 2017, entitled "System and Method for Session Management"; Serial No. filed March 17, 2017 U.S. Provisional Patent Application 62 / 472,720, entitled "System and Method for Session Management"; Serial No. 62 / 492,045, filed April 28, 2017, entitled "System and Method for Session Management ”; U.S. Provisional Patent Application Serial No. 62 / 503,117, filed May 8, 2017, entitled “System and Method for Session Management”; ...

Claims

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Application Information

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IPC IPC(8): H04W48/12
CPCH04W76/30H04W36/0055H04L67/14H04L69/327H04W80/10H04W88/14H04L67/148H04W76/34H04L67/143H04L67/142H04W12/08H04L65/1069H04L65/80H04L65/1089H04W36/0033H04L41/0806H04L41/5041H04L41/5019H04L41/0894H04L41/0895H04L41/40H04L41/342H04W76/27H04W36/0022H04W36/14H04W76/11H04W36/0016H04W76/10H04W24/10H04W36/0011H04W28/24
Inventor 恩科·敦·道张航李顼
Owner HUAWEI TECH CO LTD
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