Method and device for communication in heterogeneous mobile communication network

Abstract

The invention relates to a method and a device for communication in a heterogeneous mobile communication network. By the aid of the method and the device, the density of an optimized empty sub-frame can be adaptively calculated for a macro base station based on the load balance between the macro base station and a user device served by an accessory access point of the macro base station, and the pattern of the empty sub-frame is correspondingly adjusted, so that pattern configuration of the empty sub-frame of each macro base station can be independently updated. Therefore, system resources are more flexibly and effectively configured. Moreover, only an X2 interface is needed between the macro base station and the accessory access point thereof, so that a small quantity of signaling expenses is consumed.

Description

technical field [0001] The present invention relates to mobile communication technology, and more specifically, to a communication method and device in a heterogeneous mobile communication network. Background technique [0002] Currently, a heterogeneous network (heterogeneous network, HTN) has been accepted by the LTE-A research project. A heterogeneous network is defined as a hybrid network deployment in which cells of lower power base stations, such as pico base stations, femto base stations, and or relay stations, are included in addition to cells of traditional macro base stations. These smaller cells are usually used to extend signal coverage in areas with poor macro base station signals (such as indoors), or to increase network capacity in dense user areas (such as stations, airports or shopping malls). However, the introduction of smaller cells operating in the same frequency band as the macro cell in order to obtain the cell splitting gain will cause new interferen...

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Problems solved by technology

[0004] Interference risk User equipment can avoid strong interference from macro cells in empty subframes, but in the prior art there are only fixed empty subframe density and pattern configurations, such configurations do not take into account changes in actual network conditions, thus lacking effective spectrum resources The performance of the system needs to be further improved by using

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