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CDMA system terminal switching method

A code division multiple access and system terminal technology, applied in the field of data communication, can solve problems such as the inability to switch CDMAEVDO systems, and achieve the effect of improving the utilization rate of data services

Inactive Publication Date: 2008-01-23
GLOBAL INNOVATION AGGREGATORS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to solve the problem that the terminal cannot be switched to the CDMA EVDO system when it enters the CDMA 1X and CDMAEVDO mixed coverage area from the pure CDMA 1X coverage area when it is activated by CDMA 1X, and provides two switching methods, which are realized by the following steps

Method used

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  • CDMA system terminal switching method

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Embodiment Construction

[0013] The coverage of CDMA 1X network is larger than that of CDMA EVDO network. The CDMA EVDO system is controlled by the BSC of CDMA EVDO, and the location of the BTS of CDMA EVDO determines its coverage area. The BSC and BTS can be built in one, or they can be built with different equipment.

[0014] The main reason why the terminal cannot switch is that when CDMA 1X is in the active state, when the user enters the mixed coverage area from the pure CDMA 1X coverage area, the terminal cannot search for CDMA EVDO frequency points at the same time, and cannot switch to the CDMA EVDO system. The information reported by it, such as the pilot frequency strength, makes the user in the active state enter the dormant state for a short time, and the terminal will search for the CDMA EVDO carrier frequency again, so as to transfer the data service to the CDMA EVDO system.

[0015] As shown in Figure 1, it is a schematic diagram of the switching process, and the specific switching step...

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PUM

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Abstract

The invention discloses a switch method to trigger dynamic terminal by data business, which comprises: when enters mixed coverage area of CDMA 1X and CDMA EVDO from pure CDMA 1X, according to measuring information from dynamic terminal, BSC decides interrupts terminal current business and releases air interface for double-mode terminal; the terminal rebuilds in CDMA EVDO to continue said business; further, it can not take decision and releases air interface directly; if does not support CDMA EVDO, the terminal can rebuild in CDMA 1X.

Description

technical field [0001] The present invention relates to handover technology in the field of data communication, in particular to CDMA 1X (CodeDevision Multiple Access 1X, code division multiple access single carrier system) data service active state terminal, from pure CDMA 1X system coverage area to CDMA 1X system and CDMA EVDO (CDMAEVolution To packet Data Optimized, code division multiple access data system) system mixed coverage area, how to switch to the method of CDMA EVDO system. Background technique [0002] In the mobile communication network adopting CDMA (Code Devision Multiple Access, Code Division Multiple Access) standard, CDMA EVDO is a pure data communication system. In the field of wireless communication, the cost per megabit of data transmitted by CDMA EVDO is much lower than that of CDMA 1X system. At present, the CDMA EVDO system is positioned as an overlay network of CDMA 1X, that is, it adopts CDMA EVDO and CDMA 1X overlay coverage in hotspot areas, and...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W36/14
Inventor 聂际敏戚浩峰陈永健
Owner GLOBAL INNOVATION AGGREGATORS LLC
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