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Cell configuring method and cell configuring device

A cell configuration and cell technology, applied in the field of anti-interference, can solve the problems of large central cell interference, difficulty in ensuring scrambling code correlation, and different correlations with each other, so as to reduce the number of cells, reduce the amount of scrambling code usage, and reduce The effect of inter-cell interference

Active Publication Date: 2013-09-11
TD TECH COMM TECH LTD
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Problems solved by technology

Even if 2 times the adjacent cells are configured, the interference from the cells outside the 2 times adjacent cells to the central cell is still relatively large
[0009] In addition, in the TD-SCDMA system, there are 32 scrambling code groups in the current network, but these scrambling code groups have different correlations with each other. Actually, according to SF16, there are only 12 code groups with good correlation; the average number of neighboring cells In the case of 18, it is difficult to ensure that the correlation between the scrambling codes of the neighboring cell and the neighboring cells is good

Method used

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  • Cell configuring method and cell configuring device
  • Cell configuring method and cell configuring device
  • Cell configuring method and cell configuring device

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Embodiment Construction

[0029] In order to make the purpose, technical means and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The basic idea of ​​the present invention is: in the sectorized networking system that has been put into operation, by conditionally selecting some cells in a large coverage area to combine multiple physical sectors, the coverage area of ​​the cells is indirectly expanded, and the It eliminates co-channel interference between densely populated cells, improves network KPIs, and brings better user experience to customers.

[0031] Specifically, the main consideration of adopting a sector-covered cell is to expand the capacity of the cell and load more services. However, in a sectorized cell, as mentioned in the background, in the configuration of adjacent cells of a sectorized cell, it is difficult to ensure that the scrambling codes used by all adjacent cells ...

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Abstract

The invention discloses a cell configuring method which is characterized in that in an operation process of an existing system where section networking is used, the cell configuring method includes the following steps that firstly, a load and / or an interference value of each cell in the system is calculated regularly; secondly, regarding to a result regularly calculated, when loads of three section cells belonging to the same base station are smaller than a preset first load threshold and / or an interference value of at least one of the three section cells belonging to the same base station is larger than a preset first interference threshold, the three section cells belonging to the same base station are merged and configured into a logic cell. The invention further discloses a cell configuring device. With the cell configuring method and the cell configuring device, interference among adjacent cells can be reduced.

Description

technical field [0001] The present invention relates to anti-interference technology, in particular to a cell configuration method and device. Background technique [0002] In the TD-SCDMA system, the basic principles of scrambling code planning are as follows: [0003] The composite code is obtained by multiplying the spreading code and the scrambling code element by element; since the signals between users in the TD system are distinguished by the spreading code and the scrambling code, the orthogonality between the composite codes determines the The size of the disturbance. Specifically, the composite code (16, 1) refers to a composite code formed by combining the No. 16 spreading code and the No. 1 scrambling code. [0004] When SF=16 (the spreading code of SF=16 is used in the TD-SCDMA live network), each of the 128 scrambling codes forms its own composite code set for the respective 16 spreading codes. Of these 128 sets of composite codes, many are identical, in fac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W16/24
Inventor 魏亚锋刘松
Owner TD TECH COMM TECH LTD
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