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Switchover method between 3G network and WIFI network based on location information

A technology of 3G network and positioning information, which is applied in the field of handover between 3G network and WIFI network based on positioning information, can solve the problems of forced interruption of handover and handover, difficulty in precise handover, fluctuation of signal level, etc., so as to reduce handovers. Number of times, simplifying RSS comparison, and improving the effect of switching success rate

Inactive Publication Date: 2006-06-28
上海贝豪通讯电子有限公司
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Problems solved by technology

[0008] (4) Location-assisted handover algorithm—the ideal handover is to handover at the cell boundary according to the location of the mobile device, but it is difficult to achieve accurate handover due to fluctuations in the received signal level due to slow fading and fast fading
Fluctuations in the signal may make switching too early or too late, which will cause unnecessary switching or forced interruption of switching

Method used

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  • Switchover method between 3G network and WIFI network based on location information
  • Switchover method between 3G network and WIFI network based on location information
  • Switchover method between 3G network and WIFI network based on location information

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Embodiment Construction

[0039] The third generation mobile communication system and WIFI network will be able to provide accurate location information for terminals and base stations (access points). The method proposed by the present invention is a vertical handover between a 3G network and a WIFI network based on positioning information, which can make full use of the location information of terminals and base stations (access points) for handover judgment, can improve the efficiency of handover between heterogeneous networks, and reduce unnecessary Necessary switching times (ping-pong effect), switching failure probability, call blocking probability, and reducing signaling load and shortening switching time.

[0040] The present invention is based on the periodically measured location information provided by the network and the terminal, and utilizes the resulting mobile station speed and direction angle information to distinguish the handover between the cellular network and the WIFI network into ...

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Abstract

This invention puts forward a switch method between 3G netwqork and WIFI network, which differentiates the switch between a cellular network and the WIFI network into different kinds to switch and judge based on the position information of periodic measurement commonly provided by the network and the terminal and the information of the velocity and directions and angles along with it to increase the switch efficiency among heterogeneous networks and reduce unnecessary switch times.

Description

Technical field: [0001] The invention relates to a switching method of communication technology, in particular to a switching method between a 3G network and a WIFI network based on positioning information. Background technique: [0002] The interconnection of various heterogeneous networks is the main feature of future communication networks. Mobile communication networks based on GPRS and 3G can provide large-scale network coverage, and WIFI wireless LAN, as a high-speed wireless network, is gaining popularity in some hotspot areas. More and more applications. The mobile terminal often detects the coverage of multiple types of wireless networks at the same time during the moving process, which home network to choose and when to switch are very important. It is necessary to increase the switching speed and reduce the switching delay, but if the target and timing of switching cannot be guaranteed to be optimal, even if there is a low switching delay, more switching times wi...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04Q7/38
Inventor 陈铭铭
Owner 上海贝豪通讯电子有限公司
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