LTE system interference checking method and device

A system interference and interference correction technology, applied in the field of communication, can solve problems such as difficult to cover the whole area, low work efficiency, large manpower, material resources and time

CN104168588AActive Publication Date: 2014-11-26CHINA UNITED NETWORK COMM GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-11-26

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Abstract

The embodiment of the invention provides an LTE system interference checking method and device and relates to the field of communication. By the adoption of the method and device, automatic acquisition and statistics of data can be achieved on the network side, and cell pairs where PCI interference exists are determined. The method specifically comprises the first step of obtaining a measurement report (MR) reported by UE, wherein the MR comprises physical cell-IDs (PCIs) and signal intensity information of servicing cells and adjacent cells in each cell, and the physical cell-IDs (PCIs) and the signal intensity information are measured by the UE, the second step of conducting statistics on the total number of MR sampling points of each servicing cell according to the PCIs of the servicing cells in the MR, the third step of obtaining the total number of sampling points, among the MR sampling points of the same servicing cell, of PCI interference by each adjacent cell to the servicing cell, and the fourth step of comparing the total number of the PCI interference sampling points with the total number of the MR sampling points to obtain a PCI interference sampling point occupation ratio, and then judging whether PCI interference correction needs to be conducted on the corresponding adjacent cells and the corresponding servicing cells according to the PCI interference sampling point occupation ratio. The LTE system interference checking method and device are used for checking the cell pairs where the PCI interference exists.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a method and device for checking interference in an LTE system. Background technique

[0002] The Long Term Evolution (LTE) mobile communication system is a technical standard of the Universal Mobile Telecommunications System (UMTS) formulated by The 3rd Generation Partnership Project (3GPP). long term evolution.

[0003] In the LTE system, each cell is configured with a Physical Cell-id (PCI for short) to distinguish the cells. Among them, the PCI of a cell configured with dual antennas is mainly calculated by the formula: PCI=3*SSS (secondary synchronization signal)+PSS (primary synchronization signal). Therefore, if the PCIs of two same-frequency cells configured with dual antennas The remainder after the modulo operation of the integer 3 is equal, it indicates that the PSSs of the two co-frequency cells are equal, and there will be interference between downlink reference s...

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Embodiment Construction

[0054] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] figure 1 It is a schematic structural diagram of a communication system applied in the embodiment of the present invention, and the communication system includes a user interface 11 , an interference checking function module 12 and a wireless network function module 13 . Wherein, the wireless network functional module 13 mentioned above collects a measurement report (Measurement Report, MR for short) reported by a user terminal (User Equipment, UE for s...