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Method and device for multi-mode terminal handover

A handover, multi-mode terminal technology, applied in the field of communication, can solve the problem that the terminal cannot realize handover, etc., and achieve the effect of easy use, humanization, easy implementation, and simple algorithm

Inactive Publication Date: 2009-09-23
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention is to provide a method and device for multi-mode terminal handover to solve the above-mentioned problem that terminals cannot be handed over under heterogeneous networks

Method used

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  • Method and device for multi-mode terminal handover
  • Method and device for multi-mode terminal handover

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Embodiment Construction

[0037] In order to clearly illustrate the solutions in the present invention, preferred embodiments are given below and detailed descriptions are given in conjunction with the accompanying drawings.

[0038] see figure 1 , the method of the present invention comprises:

[0039] Step 11: Map the current service to the detected network;

[0040] Step 12: Determine whether the QOS of the service is satisfied after mapping;

[0041] The QOS of each service has different parameter definitions, such as delay, bandwidth, reliability and other indicators. Through the predefined indicators, it can be judged whether the current network meets the QOS requirements;

[0042] If it is satisfied, go to step 13; if not, go to step 14 and keep the original network connection;

[0043] Step 13: adding the detected network to the candidate set;

[0044] Step 15: judging whether soft handover is required;

[0045] Judging whether soft handoff is required based on the user's speed and moving st...

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Abstract

The invention discloses a method and a device for multi-mode terminal handover. The method comprises the following steps: when QoS of service with which a link of a detected network meets is judged out, adding the detected network into an optional set; acquiring a position signal of a terminal in each network coverage range, judging needed handover through whether the position signal meets an access threshold value of the detected network and the moving direction of the terminal in the network, then judging whether more than two optional networks exist in the optional set, if existing, carrying out intersection address COA configuration to acquire S-BU signaling, and carrying out soft handover through the optional networks; and if one optional network exists, carrying out access address COA configuration to acquire BU signaling, and switching to the network. The method can realize complete switch flow, has simple algorithm, is easy to realize, combines user preferences, and is convenient to use and humanized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for handover of a multi-mode terminal. Background technique [0002] In recent years, with the development of technology, the types of deployed wireless networks have greatly increased, and the evolution of network technology has seen WLAN, Wi-MAX, UMTS and other technologies. These technologies have their own advantages, and there is no access technology that is superior to other technologies in all performance indicators. Therefore, in the future, multiple technologies will coexist, complement each other, and fully integrate. At the same time, the application of multi-mode mobile terminals has also become a reality in recent years. With the diversification of access selection technologies and the application of multi-mode terminals, users will switch between different networks more frequently. At the same time, people's requirements for serv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/18H04W36/26H04W36/30H04W88/06
Inventor 宋梅谷晨张勇满毅任志军马文静王佳佳李新陈广泉王景尧
Owner BEIJING UNIV OF POSTS & TELECOMM
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