Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A gateway update information notification method and controller

An information notification and controller technology, applied in the field of communication, can solve the problems of user data interruption, user services cannot be continuous, front-end network elements cannot learn new gateway information, etc., to achieve the effect of ensuring continuity

Inactive Publication Date: 2019-12-03
ZTE CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main technical problem to be solved by the present invention is to provide an information notification method and system to solve the problem that the front-end network element cannot know the information of the new gateway due to the reselection of the gateway by the controller in the EPS / GPRS network scenario using SDN, thereby causing The problem that user services cannot be continued and user data is interrupted

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 gateway update information notification method and controller
  • A gateway update information notification method and controller
  • A gateway update information notification method and controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In order to implement the EPS / GPRS network scenario using SDN, the user service can be continued after the controller reselects the gateway. The method provided in this embodiment is: after the controller reselects the gateway, the controller sends the user plane information of the new gateway to For the front-end network element; the user plane information includes the user plane address information of the new gateway, and the front-end network element is a mobility management unit MME or a GPRS service support node S4-SGSN supporting the S4 interface.

[0041] In the scenario where SDN implements the EPS / GPRS network, the gateway reselected by the controller may be the serving gateway SGW or the packet data network gateway PGW, or both gateways may be reselected.

[0042] The situations where the gateway address changes include but are not limited to the following:

[0043] (1) The terminal UE has moved. In order to ensure that the terminal UE can access data in the n...

Embodiment 2

[0064] image 3 It shows how to transmit user plane information of gateways and network elements in the system when the controller selects a new UGW as the serving gateway SGW in the scenario where the terminal UE accesses the EPS core network from EUTRAN / UTRAN.

[0065] Step S301: The controller selects a new unified gateway UGW as the service gateway SGW due to the reasons described in the first embodiment;

[0066] Step S302: The controller sends the user plane information of the packet data network gateway PGW to the new serving gateway SGW, or the reselected serving gateway SGW, by issuing a flow table; the user plane information includes user plane address information, specifically It may be uplink user plane address information.

[0067] Step S303: The controller notifies the front-end network element of the user plane information of the new serving gateway SGW, and specifically sends it to the mobility management unit MME in the scenario where the terminal UE accesses...

Embodiment 3

[0071] Figure 4 It shows how to transmit the user plane information of the gateway and network elements in the system when the controller selects a new UGW as the SGSN for the GPRS system in which the controller and the RNC directly interface to perform control plane signaling interaction in the SDN scenario.

[0072] Step S401: The controller selects a new unified gateway UGW as the SGSN due to the reasons described in the first embodiment;

[0073] Step S402: The controller sends the user plane information of the uplink gateway communicating with the SGSN to the new SGSN by way of delivering a flow table; the user plane information includes user plane address information, specifically uplink user plane address information.

[0074] Step S403: the controller notifies the radio access network of the user plane information of the new SGSN, specifically to the radio network controller RNC. After the flow table is delivered above, the new SGSN is fully ready to send uplink data...

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 relates to the communication field, in particular to a method and system for notifying information when a gateway is changed in a software-defined network scenario. The method provided by the present invention is: after the controller re-selects the gateway, the controller sends the user plane information of the reselected gateway to the corresponding front-end network element, thereby ensuring that the front-end network element can know the user plane information of the newly selected gateway, Solve the problem that the user plane link is broken due to the change of the external address of the gateway, the user service cannot be continued and the user data is interrupted.

Description

technical field [0001] The present invention relates to the field of communication. In particular, it relates to a gateway update information notification method and a controller. Background technique [0002] Software Defined Network (SDN) technology can use software programming on the control plane to implement various complex network applications, such as using SDN to implement EPS / GPRS networks. Among them, EPS (Evolved Packet System, evolved packet system) network is the fourth generation mobile communication network defined by 3GPP (3rd Generation Partnership Project, third generation partnership project), GPRS (General Packet Radio Service, general packet radio service) network It is the third generation mobile communication network defined by 3GPP. [0003] Using SDN to realize the architecture of EPS network is as follows: figure 1 As shown, where UE is a communication terminal. EUTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Mobile...

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): H04W8/08H04W36/08
CPCH04W36/0055H04W88/16H04W76/22H04W36/0058H04W36/125H04W36/10H04W68/00
Inventor 毕以峰王静田甜
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com