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Method and system for preferably selecting service gateway

A technology of service gateway and gateway, which is applied in the field of communication, can solve problems such as not being able to satisfy multi-PDN connection route optimization, and achieve the effect of route optimization

Active Publication Date: 2013-09-11
安盟鑫(江苏)办公用品有限公司
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Problems solved by technology

[0019] It can be seen from the above scenarios that the existing technology cannot meet the problems caused by routing optimization and interface protocol restrictions during multi-PDN connections. Therefore, the present invention proposes a method for MME to select an S-GW to meet the requirements for multi-PDN connections. routing optimization problem, and propose an effective solution to the P-GW connection limited by the interface protocol

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  • Method and system for preferably selecting service gateway
  • Method and system for preferably selecting service gateway

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Embodiment Construction

[0055] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] image 3 It is a structural representation of the application of the method embodiment of the present invention figure 1 .

[0057] It is assumed that the UE has established a connection to PDN1 through S-GW1 and P-GW1. After the user initiates a connection to PDN2, the MME chooses to access PDN2 through P-GW2. The MME selects the S-GW according to the address information of the P-GW2, the address information of the current eNodeB, and the information of the roaming agreement. The MME selects the S-GW2 co-located with the P-GW2, thereby realizing route optimization to the PDN2. The MME does not release the previous S-GW1, and the user can continue to connect to the PDN1 through the S-GW1 and P-GW1. After the PDN connection is successfully established, the MME needs to save the correspondence between different S-GWs and P-GWs, so that in oth...

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Abstract

The invention aims to provide a method for preferably selecting a service gateway. User equipment is connected to a first grouped data network by a first service gateway and a first grouped data network gateway. The steps for the user equipment to start new-built grouped data network connection are as follows: the algorithm of gateway service is executed when a mobility management entity selects a second grouped data network gateway so as to select a matched service gateway. The invention also provides a system for preferably selecting a service gateway, which comprises a selecting module of the service gateway, wherein the selecting module of the service gateway is in the mobility management entity and is used for executing the algorithm of selecting the service gateway when the mobility management entity selects the second service data network gateway so as to select a matched service gateway. The routing optimization and the load sharing of SGW are realized by the method and the system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and a system for how to implement a preferred serving gateway when a mobility management entity establishes a multi-packet data network connection. Background technique [0002] In the field of mobile communication, EPS (Evolved Packet System, Evolved Packet System) is gradually developing. The whole EPS system such as figure 1 As shown in (non-roaming architecture), it mainly includes two parts: E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network) and EPC (Evolved Packet Core, Evolved Packet Core Network). The EPC of the system can support user access from GERAN (GSMEDGE radio access network, GSM EDGE wireless access network) and UTRAN (Universal Terrestrial Radio Access Network, universal terrestrial radio access network). [0003] In the EPC packet core network, it includes HSS (Home Subscrib...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W36/12
Inventor 梁爽朱进国
Owner 安盟鑫(江苏)办公用品有限公司
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