Method for allocating resources in homogeneous network

Abstract

Provided is a method for allocating resources in a base station of a wireless communication system. The wireless communication system comprises a centralized control device and at least one base station. The method comprises the following steps: the base station receives a first message sent by the centralized control device, wherein the first message at least contains information used for indicating the base station to configure an inter-cell interference coordination mode (including information indicating that part of sub frames belongs to an inter-cell interference coordination sub frame), information used for indicating the base station to configure a fractional frequency reuse mode on the inter-cell interference coordination sub frame (including information indicating that part of resource blocks on the frequency band of the inter-cell interference coordination sub frame belongs to an orthogonal part), and information used for indicating the base station to activate the moment of time of the configuration; the base station configures the inter-cell interference coordination mode and the fractional frequency reuse mode according to the first message; and the base station activates the configuration according to the moment of time indicated by the first message.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to the technical field of wireless communication. Background technique [0002] In the field of wireless communication, the problem of inter-cell interference has always been a hot research direction in recent years. As a result, people have proposed a variety of corresponding suppression technologies for co-channel (co-channel) interference. [0003] For example, with the increasingly widespread application of heterogeneous network structures, in order to solve the problem of inter-cell interference caused by high-power macro cells to low-power micro cells, the proposed Enhanced Inter-Cell Interference Coordination (eICIC) Technology is a typical representative. The eICIC technology performs cooperative transmission of multiple base stations through signaling interaction between adjacent base stations, and uses the method of configuring inter-cell interference coord...

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Problems solved by technology

However, it must be taken into account that unlike macro base stations, the bandwidth resources of small cell systems are more precious. On the one hand, the overall system bandwidth is small, and on the other hand, the typical applications here are often high-speed data services that require larger bandwidth.

Therefore, dividing some frequency bands of the entire frequency band into orthogonal parts through FFR technology will make the frequency efficiency of the entire system too low, and a large number of precious resource blocks will be wasted, thus affecting the performance of the entire system

In other words, the multiplexing granularity of FFR is too large, so that resources cannot be fully used

In addition, in extreme cases, the inter-cell interference received by a small cell is so severe that it interferes with the use of the physical downlink control channel (PDCCH) of the cell. In this case, FFR will no longer apply

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