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Switching method from 3G cell to 2G cell and network side device

A network-side device and cell technology, applied in the field of handover technology, can solve problems such as the inability to truly implement the NACC solution

Inactive Publication Date: 2007-09-12
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The RIM process used to obtain the SI / PSI of the target cell is connectionless (sent through the Iu interface message "Direct Information Transfer", which is a connectionless message), so the NACC solution cannot be truly implemented

Method used

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  • Switching method from 3G cell to 2G cell and network side device
  • Switching method from 3G cell to 2G cell and network side device
  • Switching method from 3G cell to 2G cell and network side device

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0026] The first embodiment of the present invention relates to a handover method from a 3G cell to a 2G cell. In this embodiment, the connectionless process used by the network side device to acquire SI / PSI is the RIM process, and the specific process is shown in FIG. 3 .

[0027] In step 310, the UE reports a measurement report and triggers a cell change. Specifically, when the UE moves from a 3G cell to a 2G cell, the cell needs to be changed. Therefore, the UE will report a measurement report to the network side equipment RNC, and notify the network side of neighboring cells with better received signal quality.

[0028] Next, enter step 320, the RNC records the corresponding relationship between the target cell identifier and the UE....

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Abstract

The invention relates to the wireless communication field, disclosing a 3G cell-to-2G cell switching method and the network side equipment, making the network side able to connect the unconnected course with the connected course to implement NACC's solution. After determining target cell for UE, the network side equipment records the corresponding relation between the mark of the target cell and the UE; after obtaining the SI / PSI of the target cell by the unconnected course, it finds the corresponding UE in the corresponding relation according to the mark of the target cell and sends the obtained SI / SPI to the UE; and the determination of target cell of UE can be triggered by measurement report of UE and it can make blind switching according to the network planning information.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to switching technology. Background technique [0002] The mobile communication system can meet people's requirements for communication anytime and anywhere, and has developed rapidly since its appearance. The Global System for Mobile Communication (Globe System for Mobile Communication, "GSM" for short), as one of the solutions of the second generation mobile communication (The Second Generation, "2G" for short), has been widely used around the world. Wideband Code Division Multiple Access ("WCDMA") is one of the three mainstream standards of the third generation mobile communication (the 3rd Generation, "3G"). It inherits the high degree of standardization and openness of GSM. It has good compatibility and interoperability with GSM network, which is one of the development trends of mobile communication in the future. [0003] For all mobile communication systems, including ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04Q7/34H04W36/14
Inventor 高良柱刘霞玲
Owner SHANGHAI HUAWEI TECH CO LTD
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