Method used for adjacent frequency interference detection and optimization and small base station

A technology of adjacent frequency interference and small base stations, applied in the field of adjacent frequency interference detection and optimization, methods and small base stations, can solve problems such as inter-station adjacent frequency interference, improve network throughput and spectrum efficiency, and reduce network edge adjacent frequency interference effect

Inactive Publication Date: 2017-04-19
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the absence of a 5M guard band between adjacent frequencies, if the TD (Time Division, Time Division) uplink and downlink ratios of different operators are inconsistent, there will be adjacent channel interference between the down-to-up station

Method used

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  • Method used for adjacent frequency interference detection and optimization and small base station
  • Method used for adjacent frequency interference detection and optimization and small base station
  • Method used for adjacent frequency interference detection and optimization and small base station

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0039] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses a method used for adjacent frequency interference detection and optimization and a small base station. The method comprises the following steps of detecting whether a TD-LTE signal exists in a surrounding environment; if the TD-LTE signal exists in the surrounding environment, determining whether a signal source quantity whose reference signal receiving power RSRP is greater than a predetermined power value PTH is greater than 1; if the signal source quantity whose RSRP is greater than the predetermined power value PTH is greater than 1, acquiring uplink and downlink configuration information of all the signal sources whose RSRP is greater than the PTH; comparing and determining whether the uplink and downlink configuration information of all the signal sources whose RSRP is greater than the PTH is the same; and if the uplink and downlink configuration information of all the signal sources whose RSRP is greater than the PTH is the same, taking the same uplink and downlink configuration information as TD uplink and downlink configuration information of the small base station. In the invention, uplink and downlink configuration can be reasonably optimized, a network-edge adjacent frequency interference is reduced and a network throughput and frequency spectrum efficiency are increased.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for detecting and optimizing adjacent frequency interference and a small base station. Background technique [0002] The hybrid network of heterogeneous nodes will become the future network form. Small base stations of different operators overlap and cover, and it is imminent to realize automatic and fast adjacent channel interference detection and optimization. [0003] Operators' TD-LTE (Time Division Long Term Evolution, Time Division Long Term Evolution) frequency bands often have close contact. 2575-5635MHz is close to each other, and there is a risk of adjacent frequency interference. In the absence of a 5M guard band between adjacent frequencies, if the TD (Time Division, time division) uplink and downlink ratios of different operators are inconsistent, there will be adjacent frequency interference between downlink and uplink stations. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W24/08H04B17/318
CPCH04W24/02H04W24/08
Inventor 魏垚熊尚坤杜刚王庆扬尹柯
Owner CHINA TELECOM CORP LTD
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