Anomaly coverage location method and device for wireless cell

Abstract

The invention relates to a wireless cell abnormal coverage positioning method and a device thereof. The method includes: obtaining call flow signaling data and call switching flow signaling data of avoice call,and associating the call flow signaling data and the call switching flow signaling data to obtain an average MOS value of voice quality before and after the voice call switching. If the decrease amplitude of MOS value before and after switching exceeds the preset threshold value of MOS, it is judged that abnormal handover of wireless cell exists in the voice call. When a voice call withabnormal handover is detected, if there are other radio cells with non-abnormal coverage on the handover path between the radio cell before handover and the radio cell after handover in the preset angle of the radio cell after handover, it is judged that the radio cell after handover is an abnormal coverage cell. The invention can realize the unified monitoring of the whole network wireless cell,reduces the testing range of abnormal coverage of the wireless cell, and reduces the maintenance cost of the wireless network.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for positioning abnormal coverage of a wireless cell. Background technique [0002] With the rapid development of modern communication technology, wireless coverage requirements are becoming increasingly extreme. In addition to urban and indoor coverage, barren mountains and wild forests also need to be covered. The coverage area needs to be wider and wider, and the signal quality requirements of wireless services that need to be provided are getting higher and higher. [0003] Volte (Voice over LTE; LTE, Long Term Evolution, the long-term evolution of general mobile communication technology), it is an IP (ie Internet Protocol, the abbreviation of the protocol for interconnection between networks) data transmission technology, without 2G or 3G network, all services are carried on the 4G network, which can realize the unification of data and voice services under the ...

AI Technical Summary

Problems solved by technology

[0005] In a wireless network, there are cases of abnormal coverage of wireless cells. Abnormal coverage includes scenarios such as over-coverage, weak coverage, and reverse antenna connection. The over-coverage refers to excessive coverage overlap in the network. The phenomenon of over-coverage is signaling Congestion and the frequent handover of dropped calls and TCH (i.e. Traffic Channel, business channel) due to interference, over-coverage will lead to too high base station density, thereby causing co-channel interference; the weak coverage is that the required coverage area of ​​the base station is large , the distance between the base stations is too large, or the signal in the border area is weak due to the blockage of buildings, and the weak coverage directly affects the call quality, which must be paid attention to; the antenna feeder is BTS (BTS full name: Base Transceiver Station, Chinese for base An error occurred during the connection process between the carrier frequency jumper and the antenna feeder, which resulted in the actual connection being different from the plan. The reverse connection of the antenna feeder may cause interference in the network and unbalanced uplink and downlink, resulting in call drop and assignment Failed, which severely impacted the quality of the network

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