Inter-cell interference coordination method and system

A technology of inter-cell interference and coordination methods, applied in the field of communication, can solve problems such as inability to adapt to changes in network load, and achieve the effect of optimizing performance
CN102685757BActive Publication Date: 2015-09-16ZTE CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2015-09-16

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Abstract

Disclosed are an inter-cell interference coordination method and system. The method includes: counting by a first cell the number of user devices whose QoS is substandard, or the number of user devices whose radio link has failed therein; and adjusting the RNTP threshold(s) of the first cell and / or a second cell adjacent thereto according to the number and a preset number threshold. The present invention can realize inter-cell interference coordination according to the variation in the network load, thus optimizing the performance of the cell edge.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a method and system for inter-cell interference coordination. Background technique

[0002] Inter-Cell Interference (ICI for short) is an inherent problem in cellular mobile communication systems, and a traditional solution is to use frequency reuse. The long-term evolution (Long-Term Evolution, LTE for short) of the future broadband mobile communication system has high requirements on spectrum efficiency, so it is hoped that the spectrum reuse factor is as close as possible to 1. Orthogonal Frequency Division Multiplexing (OFDM) technology solves the problem of intra-cell interference better than Code Division Multiple Access (CDMA) technology, but as a cost, the OFDM system has The coming ICI problem is more serious than the CDMA system. If two adjacent cells use the same spectrum resource at their junction, a stronger ICI will result.

[0003] The interference between down...

Claims

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