Inter-cell interference coordination method and device for implementing same

Abstract

The invention discloses an inter-cell interference coordination method and a device for implementing the same. The method comprises the following steps of: partitioning each cell into a central area, a transition area and an edge area according to the channel quality parameter of a terminal in the cell; distributing a frequency resource to the terminal which is currently permitted to adopt multiple input multiple output (MIMO) technology in the transition area of the cell on a transmission band; and transmitting data through the MIMO technology by using the distributed frequency resource. Theinvention also provides a device for realizing inter-cell interference coordination. A base station comprises a parameter acquisition module, a partition module, a first resource distribution module and a data transmission module. Due to the adoption of the method and the device of the invention, the frequency spectrum utilization ratio of a long term evolution (LTE) system can be enhanced.

Description

technical field [0001] The present invention relates to Long Term Evolution (LTE, Long Term Evolution) technology, in particular to a method for coordinating inter-cell interference and a device for realizing the method. Background technique [0002] The LTE network is a new generation of wireless network promoted by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) standard organization, focusing on high-speed data services, and its downlink adopts Orthogonal Frequency Division Multiple Access (OFDMA, Orthogonal Frequency Division Multiplexing Access) technology, uplink using single-carrier OFDMA (SC-OFDMA, Single Carrier-OFDMA) wireless access technology, combined with multiple-input multiple-output (MIMO, Multiple-Input Multiple-Out-put) technology to improve LTE system throughput And spectrum utilization, thereby increasing the data rate. [0003] In order to improve the data rate and coverage of the cell edge area, the LTE system also ne...

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Problems solved by technology

[0005] In the prior art, static interference coordination does not require signaling interaction between cells, but makes the spectrum utilization rate of the LTE system low; quasi-static interference coordination depends on a certain number of inter-cell signaling interactions, compared with static interference coordination, The spectrum utilization of the LTE system has been improved, but the improvement depends on the frequency of inter-cell signaling interaction; while dynamic interference coordination relies on frequent inter-cell signaling interaction, which greatly improves the spectrum utilization of the LTE system, but frequent The inter-cell signaling interaction puts forward higher requirements on the equipment

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