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Method and device for planning frequency and scrambling codes

A planning and frequency technology, applied in network planning, electrical components, wireless communication, etc., can solve the problems of inaccurate planning results and lack of interference matrix, and achieve the improvement of network quality and user experience, frequency and scrambling code planning results are accurate. Effect

Active Publication Date: 2011-11-23
CHINA MOBILE GROUP ZHEJIANG +1
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Problems solved by technology

[0004] In the prior art, the frequency and scrambling code planning mainly depend on the cell topology and neighbor cell list, such as frequency planning according to the traditional cellular multiplexing method, and scrambling code planning based on the propagation model and electronic map, etc., but this However, there will be certain problems in practical application of this method, that is, due to the lack of an interference matrix that can reflect the real interference situation of the network, the planning results are not accurate enough

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  • Method and device for planning frequency and scrambling codes
  • Method and device for planning frequency and scrambling codes
  • Method and device for planning frequency and scrambling codes

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Embodiment Construction

[0021] In practical applications, when the primary serving cell communicates, it will be interfered by the interfering cell to varying degrees. The interference matrix reflects the interference of any two cells in the network under different frequencies and different scrambling codes. influence level. Such as figure 1 as shown, figure 1 It is a schematic diagram of an interference situation between an existing primary serving cell and an interfering cell. The interference degree of the interfering cell to the primary serving cell mainly depends on the following factors: the level difference RSCP between the interfering cell and the primary serving cell m -RSCP n (RSCP m Represents the level value of the main serving cell, RSCP n represents the level value of the interfering cell), the scrambling code SC used by the interfering cell n and the scrambling code SC used by the primary serving cell m The correlation between the scrambling codes, and the traffic carried by the...

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Abstract

The invention provides a method and device for planning frequency and scrambling codes. The method comprises the following steps of: acquiring network parameter information and sweep frequency data in a planning region; constructing an interference matrix according to the network parameter information and the sweep frequency data, wherein the interference matrix comprises a same-frequency interference matrix and a scrambling code correlation matrix; distributing frequencies for each cell in the planning region according to the same-frequency interference matrix, and distributing scrambling codes for each cell in the planning region according to the scrambling code correlation matrix. By applying the scheme of the invention, the accuracy of frequency and scrambling code planning can be improved, namely, a frequency and scrambling code distribution mode with optimal overall interference level of the network can be acquired, so that the network quality and the user experience can be improved.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a frequency and scrambling code planning method and device. Background technique [0002] In a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) network, due to limited frequency resources, co-frequency networking is unavoidable. Specifically, in the TD-SCDMA network, the available frequency band is 15M bandwidth, and the available frequency points are only 9. Considering the indoor reserved frequency points, the current network frequency planning scheme mostly adopts multi-carrier same-frequency and different-frequency joint networking In this way, it is inevitable that the main carrier of the main serving cell and the surrounding neighboring cells will have the same frequency, which will lead to the same frequency interference between the cells. Therefore, reasonable frequency planning is required. [0...

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Application Information

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IPC IPC(8): H04W16/02H04W16/14H04W16/18
Inventor 熊宙实杨健张玲袁汶雯罗建迪郭嘉陈欣伟沈亮
Owner CHINA MOBILE GROUP ZHEJIANG
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