Method for switching from UMB system to DO system

A technology of system switching and mobile broadband, applied in the field of mobile communication, can solve problems such as long interruption time of data transmission

Inactive Publication Date: 2009-06-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a method for switching from UMB system to DO system, so as to overcome the problem of long interruption time of data transmission in the switching process in the prior art

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  • Method for switching from UMB system to DO system
  • Method for switching from UMB system to DO system

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] like figure 2 As shown, the embodiment of the present invention includes the following steps:

[0026] Step 201, performing data transmission between AT and UMB AN (Access Network, access network);

[0027] Step 202, UMB AN broadcasts the pilot configuration information of adjacent DO cells in the overhead message;

[0028] Step 203, after the AT obtains the neighbor cell pilot configuration information, obtains the IP address of the corresponding DO BSS (Base Station System, base station system) through a DNS (Domain Name System Domain Name System) server;

[0029] Step 204, AT and DO BSS carry out session negotiation through the IP tunnel between UMB AN and DO BSS;

[0030] Step 205, AT and DO BSS establish a PPP connection through the IP tunnel between UMB AN and DO BSS;

[0031] Step 206, if the AT detects that the UMB signal ...

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Abstract

The invention discloses a method for switching an ultra mobile wideband UMB system to a DO system only supporting data service. The method comprises: broadcasting the pilot frequency configuration of a DO cell adjacent to UMB access network AN; acquiring an IP address of the DO pilot frequency corresponding to a base station system BSS when an access terminal connected with the UMB system detects a pilot frequency signal of the DO; establishing point-to-point communication protocol PPP connection between the AT and the DO system; and breaking the connection between the AT and the UMB system, switching to the DO system, and establishing the air interface connection between the AT and the DO BSS. The method solves the problem of long interruption interval of data transmission in the switching process in the prior art, and only needs to establish the air interface connection when the AT is switched to the DO system from the UMB system, so as to greatly reduce the interruption interval of service in the switching process.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for switching from a UMB (Ultra Mobile Broadband, Ultra Mobile Broadband) system to a DO (Data Only, only supporting data service) system. Background technique [0002] With the development of mobile communication technology, the UMB system has gradually begun to be deployed. In the initial stage of network construction, the UMB system is generally only deployed in some hot spots, such as dense commercial areas, airports, docks, etc., and its coverage is limited. And the DO system already has complete network coverage. like figure 1 shown. When a dual-mode access terminal supporting both the UMB system and the DO system is in the process of data transmission with the UMB system, the coverage area of ​​the UMB system moves to the coverage edge of the UMB system. In order to ensure the continuity of user services, it is necessary to Switch from UMB...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W88/06H04L29/06
Inventor 张万帅
Owner ZTE CORP
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