Inter-cell interference coordination method and device in heterogeneous network

Abstract

The invention provides an inter-cell interference coordination method and a device in a heterogeneous network. The method comprises the steps of configuring a limited interference source selection threshold and an interference contrast threshold according to parameter configuration of the limited interference source selection threshold and the interference contrast threshold, which are selected by a base station; measuring adjacent cell interference and reporting to the base station; and using the base station to contrast interference measured value with the interference contrast threshold, when the measured value is greater than the threshold, using the base station to determine interference coordinate strategy according to the contrast result between the measured values of the base stations and the user sides in different types in the heterogeneous network and the interference contrast threshold. By adopting the technical scheme, the inter-cell interference can be effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more specifically, to an interference coordination method and device in a heterogeneous network. Background technique [0002] In the next-generation broadband wireless communication network, how to support a larger bandwidth in the wireless communication network under the bandwidth of the current wireless communication system becomes a key factor in improving the throughput of user terminals between cells and the average throughput of user terminals. Facing severe challenges. [0003] At present, in the Long Term Evolution (LTE) of the Third Generation Partnership Project, especially in heterogeneous networks, due to the existence of different types of base stations (BS) with different performances, such as transmit power, throughput The amount, peak rate, load status, etc. may be different, which brings difficulties to the allocation of physical cell IDs, especially wh...

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Problems solved by technology

[0003] At present, in the Long Term Evolution (LTE) of the Third Generation Partnership Project, especially in heterogeneous networks, due to the existence of different types of base stations (BS) with different performances, such as transmit power, throughput The amount, peak rate, load status, etc. may be different, which brings difficulties to the allocation of physical cell IDs, especially when the number of base stations of different types is large, it will bring great difficulties to the avoidance of conflicts in the allocation of physical cell IDs. At the same time, due to the fact that all types of base stations have their own coverage areas, it brings severe challenges to inter-cell interference coordination

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