A method for pci optimization of lte cell based on mr measurement

A cell and neighboring cell technology, which is applied in the field of LTE communication system to achieve high initiative and real-time performance, avoid the problem of high PCI interference, and achieve fast computing speed.

CN104507109BInactive Publication Date: 2019-04-05北京胜普多邦通信技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-04-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an LTE (long term evolution) cell PCI (peripheral component interconnect) optimizing method based on MR measurement. The method is characterized by comprising the following steps that (1) MRO data is collected, in addition, the measurement report of a major cell and an adjacent cell is extracted, and the covering correlation between the cells is calculated; (2) hard constraint conditions are made according to the frequency of the major cell and the adjacent cell and the PCI configuration condition, so that the PCI values are filtered through the hard constraint conditions; (3) the filtered PCI values are subjected to interference operation, and in addition, a PCI interference value list is obtained; (4) the PCI with the lowest interference value in the interference value list is limited to be the optimal available PCI of a target cell. The optimizing method has the advantages that the operating speed is high, the efficiency is high, newest MRO measuring data can be collected through networks at any time, the PCI interference value between the network cells is counted, extremely high activity and real-time performance are realized, and various daily and special optimizing requirements can be fast responded.
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Description

technical field

[0001] The invention relates to the field of LTE communication systems, in particular to a method for optimizing the PCI of an LTE cell based on MR measurement. Background technique

[0002] The optimization of the current TD-LTE network PCI is mainly planned and optimized according to various established rules as guidelines. The main optimization method is still done manually through the map. The main principles of the optimization include the following three points, one of which is : Multiplexing distance, that is, the PCI multiplexing interval is at least 4 layers above the cell, which is greater than 5 times the radius of the cell; the second is: all adjacent cell lists of the same cell cannot have the same PCI; the third is: the same station and the opposite The positions of the pilots for testing adjacent cells should be staggered as much as possible, that is, the modulo 3 remainders of adjacent cells are different.

[0003] However, the existing optim...

Examples

Embodiment

[0047] The method for the LTE cell PCI optimization based on MR measurement of the present invention, it specifically comprises the following steps:

[0048] Step 1. Collect MRO measurement data, extract the measurement reports of the main cell and neighboring cells, and calculate the coverage correlation between cells. MRO measurement data is the abbreviation of measurement report sample data. MRO measurement reports mainly include three measurement types: intra-frequency measurement report, inter-frequency measurement report, and inter-system measurement report. The measurement report mainly includes: the reference signal received power of the serving cell (MR. MR.LteScRSRQ), Reference Signal Received Quality (MR.LteNcRSRQ) of cells with defined and undefined neighbor relationship, serving cell carrier number (MR.LteScEarfcn), physical cell identity code of serving cell (MR.LteScPci) , Neighboring cell carrier number (MR.LteNcEarfcn) with defined neighbor relationship and u...