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Method and device for selecting gateway in mobile communication network as well as system comprising device

A mobile communication network and gateway technology, applied in the field of mobile communication systems, can solve the problems of continuous change of the IMSI/MSISDN sequence, increase the time delay of the PDP activation procedure, etc., and achieve the effects of speeding up the establishment of EPS bearers, improving the success rate, and reducing the response time.

Active Publication Date: 2011-03-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the DNS query includes 4-digit IMSI / MSISDN, there must be 10,000 records in the DNS server; third, additional DNS resolution will increase the time delay of the PDP activation procedure; fourth, the IMSI / MSISDN sequence continues to change, so the operator has to Continue to add DNS records in the DNS server

Method used

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  • Method and device for selecting gateway in mobile communication network as well as system comprising device
  • Method and device for selecting gateway in mobile communication network as well as system comprising device
  • Method and device for selecting gateway in mobile communication network as well as system comprising device

Examples

Experimental program
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example 1

[0030] In this instance, APNs with a user login identifier is resolved as an extension. Preferably, the APN with a partial user login identifier is resolved as an extension.

[0031] As shown in Table 2, in the DNS server, the APN and some user login (such as home location registration HLR / home subscriber server HSS) identifiers are bound with the IP address of the dedicated gateway.

[0032] Table 2APN and some user login identifiers bundled in the DNS server

[0033] APN.SRI

Gateway IP address

cmwap.001

10.1.1.1

cmwap.002

10.1.1.2

...

...

[0034] Such as image 3 As shown, when the MS / UE connects to the network, the Serving GPRS Support Node (SGSN) or Mobility Management Engine (MME) will obtain the user login identifier (S300), and log in the user before sending a query to the DNS server (S302). The identifier (preferably a part of it) is added to the APN as an extension, and then the DNS server will return the de...

example 2

[0038] In this instance, the APNs resolution with the user-login predefined token is used as the extension.

[0039] In subscriber registration (HLR / HSS), a predefined tag indicating a specific home area is added to each subscribed APN.

[0040] As shown in Table 3, in the DNS server, the APN with a predefined tag is bound with the IP address of the dedicated gateway.

[0041] Table 3 APNs with predefined tags bundled in DNS server

[0042] APNs with predefined tags

Gateway IP address

cmwap.sh

10.1.1.1

cmwap.bj

10.1.1.2

...

...

[0043] In MS, APN itself (eg CMWAP or CMNET, without flags) is used to activate PDP context, which means no influence on MS side.

[0044] In the Serving GPRS Support Node (SGSN) or Mobility Management Entity (MME), the APN from the MS is used as a prefix to find which subscribed APN should be used for the current PDP activation.

[0045]On the other hand, if the Serving GPRS Support Node (SG...

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Abstract

The invention discloses method and device for selecting a gateway in a mobile communication network as well as a mobile communication system comprising the device. The gateway is selected by binding an expanded access point name to a dedicated gateway IP address. The method reduces the requests to a DNS (Domain Name System) server and relieves the burden of the DNS server to ensure that time delay is reduced during PDP (Plasma Display Panel) activation.

Description

technical field [0001] The invention relates to a method and device for selecting a gateway, in particular to a method and device for selecting a gateway in a mobile communication network and a mobile communication system including the device. Background technique [0002] In 3GPP standard mobile networks, when activating a Packet Data Protocol (PDP) context or establishing an Evolved Packet System (EPS) bearer, the Serving GPRS Support Node (SGSN) or Mobility Management Entity (MME) has to implement the Gateway GPRS Support Node / Service The selection of Gateway / PDN Gateway (GGSN / SGW / PGW) is usually based on the Access Point Name (APN) to a considerable extent. [0003] An extension can be added to APNs to select a more dedicated gateway before sending queries to Domain Name System (DNS) servers. Partial mobile station / user equipment (MS / UE) identifiers, such as Mobile Subscriber ISDN Number (MSISDN) or International Mobile Subscriber Identity (IMSI), are often used as APN ...

Claims

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Application Information

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IPC IPC(8): H04W8/04H04W8/08H04W8/26H04W48/20
Inventor 张勇
Owner TELEFON AB LM ERICSSON (PUBL)
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