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A method and base station for realizing vertical handover in heterogeneous network

A vertical switching, heterogeneous network technology, applied in the field of communication, can solve the problem of occupying target network resources, dropped calls, etc.

Active Publication Date: 2019-03-15
CHINA MOBILE GRP GUANGDONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method and a base station for realizing vertical handover in a heterogeneous network. defect that causes dropped calls

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  • A method and base station for realizing vertical handover in heterogeneous network
  • A method and base station for realizing vertical handover in heterogeneous network
  • A method and base station for realizing vertical handover in heterogeneous network

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Embodiment Construction

[0043] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0044] When the multi-mode terminal bears services, the current mobile communication network and other heterogeneous mobile communication networks simultaneously cover the area where the multi-mode terminal is located. When the multi-mode terminal leaves the coverage of the current network, it needs to switch the wireless link to the target network. The multi-mode terminal should ensure that the new link of the adjacent cell of the target network is established before leaving the coverage of the current network cell, and it should also minimize the time for maintaining two communication links at the same time to save resources. Utilizing the movement characteristics of multi-mode terminals and fully considering these two aspects, when the current network...

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Abstract

The invention provides a method and a base station for realizing vertical handover in a heterogeneous network. The method includes: acquiring a first rule between a measurement report time point of a terminal and first signal intensity of a received current network cell signal and a second rule between the measurement report time point and second signal intensity of the received current network cell signal; for judgement, when the first signal intensity corresponding to the current measurement report time point satisfies a first handover margin and the corresponding second signal intensity satisfies a second handover margin, executing vertical handover and establishing a new link with a target network; when the first signal intensity corresponding to the current measurement report time point does not satisfy the first handover margin, calculating a first approximate expression and a second approximate expression according to the first rule and the second rule; calculating minimum time points that the first signal intensity and the second signal intensity satisfy the first handover margin and the second handover margin according to the first approximate expression and the second approximate expression; regulating values of the first handover margin and the second handover margin, and returning to judgment.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and a base station for realizing vertical handover in a heterogeneous network. Background technique [0002] With the continuous development of communication technology, heterogeneous wireless networks have received extensive attention. When a user's multi-mode terminal has the function of accessing multiple communication networks (GSM, TD-SCDMA, LTE, etc.), the handover problem of heterogeneous wireless networks becomes particularly important. In the handover process, not only the horizontal handover between cells of the same network, but also the vertical handover between different networks needs to be considered. As a mobility handover mode for mobile terminals between different types of access networks, vertical handover is the basis for the convergence of multiple networks and has become a key feature and core technology for the development of heterogeneous wirel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14H04W36/30
CPCH04W36/14H04W36/30
Inventor 陈锦维詹亚明王琳蓝斌林港斌李宇鹏
Owner CHINA MOBILE GRP GUANGDONG CO LTD