Supercharge Your Innovation With Domain-Expert AI Agents!

A PDU session update method and network side equipment

A technology of a network side device and an update method, which is applied to the update of PDU sessions and the field of network side devices, can solve the problem that V-SMF is not suitable for serving PDU sessions and the like

Active Publication Date: 2021-01-22
DATANG MOBILE COMM EQUIP CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a PDU session update method and network side equipment to solve the problem in the prior art that the PDU session using the home routing method selects the default V-SMF and is not suitable for serving the PDU session

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A PDU session update method and network side equipment
  • A PDU session update method and network side equipment
  • A PDU session update method and network side equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0116] First, when the GUTI is a 5G GUTI, and the mobile country code MCC and mobile network code MNC in the GUTI are different from the MCC and MNC in the current PLMN, it is determined that the UE moves across PLMNs.

[0117]Second, when the GUTI is a Mapped 5G GUTI, determine that the UE moves across systems.

[0118] In the embodiment of the present invention, the cross-PLMN movement of the UE may include but not limited to the following situations:

[0119] UE moves from HPLMN to VPLMN;

[0120] UE moves from VPLMN to HPLMN;

[0121] The UE moves from the original VPLMN to the current VPLMN.

[0122] The cross-system movement of the UE may include but not limited to: the UE moves from the EPS to the 5GS.

[0123] In the embodiment of the present invention, the network side device determines that the UE has a first PDU session in which the PDU session anchor point SMF is not in the current PLMN, which may include but not limited to the following two implementations:

...

Embodiment 1

[0148] like figure 2 As shown, a method for updating a PDU session includes the following steps:

[0149] Step 201: UE sends a registration request due to moving from HPLMN to VPLMN;

[0150] Step 202: The New AMF of the VPLMN receives the UE request, and determines that the UE has moved across PLMNs according to the old GUTI (5G GUTI) in the message. Specifically, according to the MCC (mobile country code, mobile country code) and MNC (Mobile Network code, mobile network code) in the old GUTI are different from the MCC and MNC of the PLMN ID, it is determined that the UE has moved across PLMNs.

[0151] Step 203: The new AMF obtains the UE context from the old AMF indicated by the old GUTI, and the UE context includes all PDU session information.

[0152] Step 204: New AMF obtains the relevant information of the PDU session, including the DNN used, whether the DNN allows the use of LBO, the S-NSSAI used, the PDU session anchor SMF, etc., and then for the PDU session anchor...

Embodiment 2

[0158] like image 3 As shown, a method for updating a PDU session includes the following steps:

[0159] Step 301: UE sends a registration request due to moving from one VPLMN to another VPLMN.

[0160] Step 302: The new AMF of the New VPLMN receives the UE request, and determines that the UE has moved across PLMNs according to the old GUTI (5G GUTI) in the message. Specifically, according to the MCC (mobile country code, mobile country code) and MNC (Mobile Network code, mobile network code) in the old GUTI are different from the MCC and MNC of the PLMN ID, it is determined that the UE has moved across PLMNs.

[0161] Step 303: The new AMF obtains the UE context from the old AMF indicated by the old GUTI, and the UE context includes the UE identity and all PDU session information.

[0162] Step 304: According to the Old GUTI and UE's SUPI (Subscription Permanent Identity, subscription permanent identity) (the MCC and MNC in the old GUTI and SUPI are different), the New AMF...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a PDU session update method and network side equipment, wherein the method includes: after the user terminal UE moves across the public land mobile network PLMN or moves across systems, it is determined that the UE has a PDU session anchor point SMF that is not in the current PLMN The first PDU session: determining a session management function V-SMF in the visited public land mobile network VPLMN for the first PDU session, and using the V-SMF to update the first PDU session. The present invention enables the PDU session to be served by an appropriate V-SMF by updating the PDU session.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a PDU session update method and network side equipment. Background technique [0002] In the existing 5G (5th-Generation, fifth-generation mobile communication technology system), when UE (User Equipment, user terminal) uses home routed (Home routed) in VPLMN (Visited Public Land Mobile Network, visited public land mobile network) ) mode to create a PDU (Protocol Data Unit, protocol data unit) session, the AMF (Access and Mobility Management Function, Access and Mobility Management Function) located in the VPLMN needs to select the V-SMF (VPLMN Session Management Function) located in the PLMN for the UE. Function, the session management function in the VPLMN), and then create a PDU session to the HPLMN (Home Public Land Mobile Network, belonging to the public land mobile network) through the V-SMF. When the subsequent UE performs registration update on the PLMN, the AMF on...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/08H04W84/04
CPCH04L41/0813H04L67/141H04W84/042H04L67/148H04W40/36H04W8/065H04W8/12H04W60/04H04W48/18H04W8/26H04W8/18H04W36/0033H04W80/10H04W8/06H04W8/08
Inventor 王胡成
Owner DATANG MOBILE COMM EQUIP CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com