Adjacent cell list obtaining method

An acquisition method and technology of adjacent cells, applied in network data management, communication between multiple stations, electrical components, etc., can solve the problem of incomplete and accurate acquisition of adjacent cell lists, limited processing capacity, and inability to achieve network optimization effects And other issues

Active Publication Date: 2011-01-26
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology

[0008] It can be seen that in the 3G drive test system and other network optimization technologies, it is necessary to accurately know the list of neighboring cells of the currently resident cell. Currently, the method of obtaining the list of neighboring cells is mainly realized by frequency scanning. The processing capability of the network optimization system itself, this method cannot obtain the list of neighboring cells completely and accurately, so it cannot achieve a better network optimization effect

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0023] In 3G system-related protocols such as WCDMA and TD-SCDMA, system information is organized in a tree structure, and different system information is organized into 18 system information blocks (SIBs) according to the characteristics and types of system information parameters. In addition, there is one master information block MIB and two scheduling information blocks SB1 and SB2, which contain reference and scheduling information to other system information blocks. The master information block MIB also carries the PLMN type information supported by the current cell. The system information block SIB11 contains the same-frequency / inter-frequency measurement control information broadcast by the base station. The present invention is based on obtaining the measurement control information, and then achieves the purpose of obtaining a list of all neighboring c...

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Abstract

The invention discloses a method for obtaining a neighbor cell list, which is applied to the optimization system of 3G network and includes the following steps: (1) the multi-frame synchronization of the system is completed and a system frame number (SFN) is obtained; (2) the complete main information block (MIB) is extracted; (3) the MIB is analyzed; the dispatch information fixed in the MIB is traversed; two dispatch blocks SB1 and SB2 which are completely searched out according to the MIB are checked to see whether one of the dispatch blocks contain system information block (SIB) 11, if not, the check is over and if the SIB exists, the check continues; (4) the SIB 11 is extracted completely; (5) the SIB 11 is analyzed; the absolute radio frequency channel number (ARFCN) and interruption number of all the neighbor cells are obtained according to the same / different frequency measurement control information of the base-station broadcast in the analyzed SIB 11, thus obtaining the neighbor cell list camped in the cell. By adopting the method of the invention, all of the neighbor cell lists camped in the cell can be accurately obtained.

Description

【Technical field】 [0001] The invention relates to a mobile communication network optimization technology, in particular to a method for obtaining a neighbor cell list in a third generation mobile communication system (3G). 【technical background】 [0002] As we all know, 3G network optimization is a very important part of 3G network construction, and the quality of network optimization technology has gradually become the key to the quality of 3G network construction. [0003] The drive test system used in network optimization is mainly used for troubleshooting, verification, optimization and maintenance of 3G networks. It is an indispensable tool for testing and monitoring network performance in the process of network operation, maintenance and optimization. [0004] In 3G network, neighbor cell optimization and scrambling code optimization are two very important steps in network optimization. [0005] Neighboring cell optimization is mainly to check whether there is a missi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/00H04W24/04H04B7/26
Inventor 李馨李云曦向炜
Owner COMBA TELECOM SYST CHINA LTD
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