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Method for positioning TD-LTE intra-system interference

A positioning method and internal interference technology, which is applied in the positioning field of TD-LTE system internal interference, can solve the problems of long investigation process, low positioning accuracy, and huge data volume, so as to facilitate follow-up and optimization effect evaluation, avoid errors and Interference, the effect of a simple calculation method

Active Publication Date: 2015-12-16
DINGLI COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above analysis has certain defects: 1. The analysis based on drive test and frequency sweep data is mainly based on manual analysis, which depends on experience. The analysis results of different levels of personnel are different, and the amount of data is huge, and the utilization of data is not enough. High, the accuracy of problem location is not high; 2. Sites checked based on physical network structure characteristics are generally based on existing data sorting results. The four super-categories (ultra-high, ultra-near, ultra-far, and super-overlapping) sites of this data There are nearly a thousand, but such sites will not necessarily affect the network, and the investigation process of such sites is long, consumes a lot of resources, and has a huge workload, so it is not easy to implement
[0012] In general, in the current technology, the method of positioning the site with large internal interference contribution in the TD-LTE system has defects such as complex implementation method, high resource consumption, huge workload, and low positioning accuracy.

Method used

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  • Method for positioning TD-LTE intra-system interference
  • Method for positioning TD-LTE intra-system interference
  • Method for positioning TD-LTE intra-system interference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] A method for positioning interference in a TD-LTE system, comprising the following steps:

[0082] S1. Obtain sampling data of the TD-LTE communication network system within a period of time;

[0083] S2. After decoding the sampling data, obtain the signal transmission parameters of the primary cell-neighboring cell included in each sampling data; the signal transmission parameters include sampling time, cell identification code and cell RSRP;

[0084] S3. Calculating the interference vectors between each pair of main cell-neighboring cells in sequence;

[0085] S4, the one-to-one correspondence between the main cell and the adjacent cell, and establish an interference relationship table between each cell;

[0086] S5. Perform data analysis on the interference relationship table, and locate cells with high interference contribution;

[0087] In step S3, the interference vector includes interference range, interference intensity, interference coefficient and MOD3 inter...

Embodiment 2

[0109] Step 1: Collect test data through mobile terminal or frequency scanning equipment or TD-LTE soft sampling platform to collect MR data reported by UE to the system. The advantage of drive test or frequency sweep data is that it is flexible and convenient for project implementation, but the collection range, density and collection time are limited; the latter has the advantage of comprehensive collection and long-term collection, but the initial construction of the collection platform is cumbersome. According to the operator's requirements, TD-LTE equipment vendors need to support the soft acquisition of the main interfaces including Uu interface. The current situation is that it is completely feasible to obtain the massive MR data reported by the UE, and the MR formats of different equipment vendors must meet the requirements of 3GPP.

[0110]Step 2: Decode the collected drive test data / frequency sweep data or MR data, and the decoding rules are in accordance with the pub...

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Abstract

The present invention discloses a method for positioning TD-LTE (Time Division-Long Term Evolution) intra-system interference, comprising the following steps: S1, acquiring data sampled by a TD-LTE communication network system within a period of time; S2, after decoding the sampled data, acquiring a signal emission parameter of a main cell-a neighbor cell included in each sampled data; S3, calculating an interference vector between each pair of the main cell-the neighbor cell successively; S4, forming an interference relation table among each cell according to the corresponding relation of the main cell-the neighbor cell; and S5, carrying out data analysis on the interference relation table, and positioning cells with high interference contribution. The method of the present invention can position high interference cells based on real-time sampled data of a TD-LTE network without considering affects of station structural characteristics; the calculation method is simple, the resource consumption is low, the precision is high, the output results are comprehensive, accurate and quantitative, and so the method can be widely applicable for mobile communication industry.

Description

technical field [0001] The invention relates to the field of wireless mobile communication, in particular to a positioning method for interference in a TD-LTE system. Background technique [0002] TD-LTE: TimeDivisionLongTermEvolution, Time Division Long Term Evolution, a 3G communication protocol; [0003] RSRP: ReferenceSignalReceivingPower, reference signal receiving power; [0004] MR data: MeasurementReportData, measurement report data, refers to the information sent on the business channel at regular intervals, and these data can be used for network evaluation and optimization; [0005] MOD3 interference: PCI=3*GroupID(S-SS)+SectorID(P-SS) in the LTE network, if the PCIMOD3 of the cell is the same, it will cause interference to the PSS signal (primary synchronization signal) under the condition of the same frequency between cells , which is called MOD3 interference; [0006] PCIMOD3: the remainder of the cell PCI divided by 3; [0007] CGI: CellGlobalIdentifier, ce...

Claims

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Application Information

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IPC IPC(8): H04W24/08
CPCH04W24/08
Inventor 韦志华余沫明
Owner DINGLI COMM
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