Pilot frequency switching method and device in TDD-LTE network

Abstract

Embodiments of the present invention provide a pilot frequency switching method and device in TDD-LTE network. The pilot frequency switching method comprises the steps of obtaining MRO measurement data; acquiring all effective sampling points in the switching band according to the MRO measurement data, respectively acquiring a first level value of a target service cell and a second level value ofan adjacent cell in the switching band, and acquiring level fluctuation data of the adjacent cell in the switching band; and determining a pilot frequency switching threshold optimization scheme of the target service cell based on the first level value, the second level value, a preset pilot frequency switching strategy and a parameter threshold value, determining a pilot frequency switching timedelay optimization scheme of the target service cell according to the level fluctuation data of the adjacent cell in the switching band, and performing pilot frequency switching on the target servicecell. According to the invention, the pilot frequency switching threshold and the pilot frequency switching time delay of each serving cell can be accurately and efficiently formulated differentially,and fine optimization of the whole network cell can be realized.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of network optimization, and in particular to a method and device for inter-frequency handover in a TDD-LTE network. Background technique [0002] 4G is the fourth-generation mobile communication standard for mobile phones. It refers to the fourth-generation mobile communication technology, including TD-LTE and FDD-LTE. LTE is the long-term evolution technology, which is the abbreviation of Long Term Evolution in English. LTE is technically considered 3.9G. But we usually call them 4G because they have a data download capability of 100Mbps and are also a key process for the evolution from 3G to technology 4G. The LTE standard consists of two different duplex modes, TDD and FDD, where TDD stands for Time Division Dual That is to say, the uplink and downlink are crossed according to time allocation on the same frequency band, and TDD can make better use of spectrum resources and be easie...

AI Technical Summary

Problems solved by technology

[0008] However, the above-mentioned inter-frequency handover solutions in schemes 1 to 3 do not optimize the inter-frequency handover parameters of each cell in a differentiated manner, and there is a defect of "one size fits all"; while scheme 4 only optimizes the neighboring cell ranking list and preset Adding and / or deleting adjacent cells to the target cell with a predetermined optimization strategy is limited to the optimization of adding and / or deleting adjacent cells, but cannot optimize the inter-frequency handover threshold, and the above-mentioned solutions are all inefficient and high cost

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