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Scrambling code optimizing method based on measurement report

An optimization method and measurement report technology, applied in electrical components, wireless communication, etc., can solve problems such as unreasonable allocation of scrambling codes, and achieve the effect of improving rationality

Active Publication Date: 2011-04-20
BEIJING TUOMING COMM TECH
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Problems solved by technology

However, this method completely depends on the handover relationship definition and handover statistics in the live network, and can only evaluate interference within the scope of the defined handover relationship. If the handover definition is wrong or the amount of handover data is small, the result of scrambling code optimization will be affected, making the scrambling code allocation unreasonable

Method used

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  • Scrambling code optimizing method based on measurement report
  • Scrambling code optimizing method based on measurement report
  • Scrambling code optimizing method based on measurement report

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0039] like figure 1 As shown, a flow chart of a measurement report-based scrambling code optimization method, the method includes the following steps:

[0040] Step S11: Obtain the signal strength and sampling points of the main serving cell and the interfering cell;

[0041] The measurement report information is extracted from the IUB interface signaling, and the signal strength and sampling points of the main serving cell and the interfering cell are obtained according to the static table of cell basic information.

[0042] The IUB interface is the interface between RNC (Radio Network Controller, that is, radio network controller) and NodeBNode B (the name of the incoming mobile base station of the 3G network), and completes user data transmission, user data and signaling between RNC and Node B processing, etc., it is a standard interface th...

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Abstract

The invention discloses a scrambling code optimizing method based on a measurement report, which comprises the following steps: establishing an interference matrix among cells by extracting measurement report information from IUB interface signaling and establishing a traffic model; using a strong correlation synthesis method to obtain scrambling code relativities under different time delays, carrying out synthesis on the premise of considering the relativity of downlink synchronous codes under different time delays; and finally, allocating the scrambling codes by using a genetic algorithm toobtain the final scrambling code optimizing scheme of the cells. The method can sufficiently reflect the perception of users, gives rational suggestions for the allocation of scrambling codes in the present network, and enhances the rationality of scrambling code optimization.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for optimizing scrambling codes based on measurement reports. Background technique [0002] With China Mobile's TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access) network construction in full swing, whether it can provide high-quality services will determine whether the TD-SCDMA network can compete in the future. key to success. [0003] TD-SCDMA (hereinafter referred to as TD) network has very few frequency points. In the case of limited frequency resources, co-frequency networking is unavoidable. Co-frequency interference is the main cause of network anomalies. At present, the existing TD frequency point planning generally depends on the topology structure of the cell and the relationship between neighboring cells. The results output by the planning software are not very informativ...

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Application Information

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IPC IPC(8): H04W24/02H04W24/10
Inventor 张亚静宋永青王广善江勇常青李玮
Owner BEIJING TUOMING COMM TECH
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