Serving gateway selection method and mobility management entity

A technology of service gateway and management entity, which is applied in the field of service gateway selection method and mobility management entity, and can solve problems such as difficulty in guaranteeing service quality.

Active Publication Date: 2013-09-18
CHINA MOBILE COMM GRP CO LTD
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the prior art, when the UE initially attaches, the MME will select the S-GW and P-GW for the UE, and when the UE subsequently initiates a Tracking Area Update (TAU, Tracking Area Update) or S1 handover, sometimes it is necessary to select the S-GW a

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
  • Serving gateway selection method and mobility management entity
  • Serving gateway selection method and mobility management entity
  • Serving gateway selection method and mobility management entity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as image 3 As shown, it is a flow chart of the S-GW selection method proposed in Embodiment 1 of the present invention, and its specific processing process is as follows:

[0030] In step 31, when the MME confirms that it is necessary to reselect an S-GW for the UE, it determines the first S-GW candidate list corresponding to the TAI of the TA to which the UE is currently attached.

[0031] In Embodiment 1 of the present invention, when the base station serving the UE changes, the MME judges whether the S-GW currently serving the UE is connected to the changed base station. The UE selects the S-GW. If the UE initiates a TAU or S1 handover, the base station serving the UE will change. After receiving the user location update message of the UE, the MME determines whether to select the S-GW for the UE again. -GW, that is to judge whether the S-GW currently serving the UE is connected to the changed base station. If it is judged that it is connected, it is confirmed ...

Embodiment 2

[0057] On the basis of the technical solution of Embodiment 1 of the present invention, Embodiment 2 of the present invention proposes a preferred implementation mode, such as Figure 5 As shown, it is a flow chart of the S-GW selection method proposed in Embodiment 2 of the present invention, and its specific processing flow is as follows:

[0058] Step 51 , when the MME confirms that an S-GW needs to be reselected for the UE, it determines the first S-GW candidate list corresponding to the TAI of the TA to which the UE is currently attached.

[0059] In the second embodiment of the present invention, the MME confirms whether it is necessary to re-select the S-GW method for the UE and the method for determining the first S-GW candidate list is consistent with the method proposed in the first embodiment of the present invention, and will not be repeated here.

[0060] When the UE undergoes TAU or S1 handover and the base station serving the UE changes, if the MME confirms that...

Embodiment 3

[0086] On the basis of the technical solution of Embodiment 2 of the present invention, Embodiment 3 of the present invention proposes a more preferred implementation mode, such as Figure 7 As shown, it is a flow chart of the S-GW selection method proposed in Embodiment 3 of the present invention, and its specific processing flow is as follows:

[0087] In step 71, when the MME confirms that an S-GW needs to be reselected for the UE, it determines the first S-GW candidate list corresponding to the TAI of the TA to which the UE is currently attached.

[0088] In Embodiment 3 of the present invention, the MME confirms whether it is necessary to re-select the S-GW method for the UE and the method for determining the first S-GW candidate list is consistent with the method proposed in Embodiment 1 of the present invention, and will not be repeated here.

[0089] When the UE undergoes TAU or S1 handover and the base station serving the UE changes, if the MME confirms that there is ...

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 invention discloses a serving gateway (S-GW) selection method and a mobility management entity (MME). The serving gateway selection method comprises the following steps: when confirming the need to reselect an S-GW for UE (User Equipment), the MME determines a first S-GW candidate list corresponding to a TAI (Tracking Area Identity) of a TA (Tracking Area) to which the UE is attached; the MME determines a first P-GW (Packet Data Network Gateway) candidate list corresponding to an APN (Access Point Name) used by the UE; the MME selects one S-GW which is arranged in a physical device together with P-GWs in the first P-GW candidate list from the determined first S-GW candidate list and takes the selected S-GW as the S-GW reselected for the UE. The technical scheme of the invention provides a specific implementation scheme for the MME to reselect an S-GW for the UE.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method for selecting a service gateway and a mobility management entity. Background technique [0002] The architecture diagram of the System Architecture Evolution (SAE, System Architecture Evolution) system developed by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) is as follows: figure 1 As shown, it includes a user terminal (UE, User Equipment), an evolved universal terrestrial radio access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), a mobility management entity (MME, Mobility Management Entity), a service gateway ( S-GW, Serving Gateway) and Packet Data Network Gateway (P-GW, Packet Data Network Gateway). [0003] exist figure 1 Among them, E-UTRAN is the access network, which mainly realizes the radio resource management function; [0004] MME is a signaling entity, and its main functions incl...

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
IPC IPC(8): H04W36/12H04W36/00
Inventor 朱琳侯志强黄震宁
Owner CHINA MOBILE COMM GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap