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IP load establishing method in mobile communication system

A technology for establishing a mobile communication system and a bearer, which is applied in the field of realizing the establishment of an IP bearer

Inactive Publication Date: 2008-08-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for solving the problem that the user plane data of the A interface in the GSM system is based on IP bearer

Method used

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  • IP load establishing method in mobile communication system
  • IP load establishing method in mobile communication system
  • IP load establishing method in mobile communication system

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Experimental program
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Effect test

Embodiment Construction

[0014] In the GSM communication system, there are three ways to distribute the code pattern / rate adaptation unit (Transcoder / RateAdaptor Unit hereinafter referred to as TRAU) between BSC and MSC, as follows:

[0015] 1. TRAU and BSC are deployed together, TRAU is a part of BSC, internal interface is used between TRAU and BSC, BSC is connected to MSC through A interface;

[0016] 2. TRAU and MSC are deployed together, but TRAU is not a part of MSC, but still a part of BSC. TRAU and MSC are connected through A interface, and TRAU and BSC are connected through Ater interface;

[0017] 3. TRAU and MSC are deployed together, and TRAU is a part of MSC. TRAU and MSC use internal interface, and MSC and BSC are connected through A interface.

[0018] For any of the above distribution modes, the user plane data of the A interface / Ater interface is carried by the RTP / UDP / IP (RTP: Real Time Protocol; UDP: User Datagram Protocol) protocol stack. In order to realize the exchange of IP addr...

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Abstract

The invention relates to the mobile communication field, in particular to a realization method for establishment of an IP bear in a GsM system, wherein, a system used to implement the method comprises a mobile terminal, a mobile switching center, a base station controller and an A interface between the mobile switching center and the base station controller. The method is as follows: mapping tables of circuit identification codes and IP addresses and port numbers of the mobile switching center and the base station controller are respectively established between the mobile switching center and the base station controller; the mobile switching center and the base station controller realize the switching of the IP addresses and the port numbers through information interaction to finish the establishment of a user surface IP bear of the mobile terminal. The technology can realize the IP bear of user surface data under the premise of not changing the control surface signaling of the prior A interface, and has simple operation.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for realizing IP bearer establishment in a GSM system. Background technique [0002] In the GSM (Global System for Mobile Communications) communication system, the current A interface between the Mobile Switching Center (hereinafter referred to as MSC) and the Base Station Controller (hereinafter referred to as BSC) is based on time division multiplexing It is carried by (Time Division Multiple hereinafter referred to as TDM). The establishment of the A-interface TDM bearer is relatively simple, and can be established by specifying a circuit identity code (Circuit Identity Code, referred to as CIC) in the assignment message of the A-interface signaling. [0003] Under the IP bearer, both MSC and BSC need to establish IP connection. When establishing the bearer, it is necessary to determine the IP address and port number of the other party, and the MSC and the BSC ex...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04Q7/22H04W76/02H04W80/04
Inventor 魏文强王欣晖凌军
Owner ZTE CORP
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