Method for coordinating semi-static interference

Abstract

The invention discloses a method for coordinating semi-static interference, comprising the steps as follows: configuring frequency resources for cells of each base station according to a preset frequency distribution strategy when a system is in an initial state, wherein the frequency resources comprise movable bandwidth; performing united interference coordination when the base station to which user equipment (UE) belongs receives a united interference coordination request sent by an adjacent cell base station after the UE enters the cell interference measurement and reporting stage; and performing distributed interference coordination process according to the interference measurement reports and movable bandwidth of the cell thereof when the base station to which the UE belongs receivesthe interference measurement reports sent by the UE. By adopting the above scheme, the method for coordinating semi-static interference in the invention is suitable for a scene in which each cell hasuniform load distribution as well as a scene in which each cell has non-uniform load distribution.

Description

technical field [0001] The invention relates to interference coordination technology in the field of cellular wireless communication, in particular to a semi-static interference coordination method. Background technique [0002] In the Long Term Evolution (LTE) system, the downlink channel adopts Orthogonal Frequency Division Multiple Access (OFDMA), and the uplink channel adopts Single Carrier Frequency Division Multiple Access (SC-FDMA) as the core transmission technology. The above-mentioned transmission technology uses orthogonal frequency sub-channels to distinguish users, which can ensure that the interference between users in a cell is so small that it can be ignored. Therefore, the interference suffered by users in a cell mainly comes from adjacent cells. Especially in the case of co-frequency networking, there will be mutual interference between adjacent cells, especially in the edge areas of the cells, so it is necessary to introduce Inter-Cell Interference Coordin...

AI Technical Summary

Problems solved by technology

[0012] However, the existing semi-static interference coordination methods are usually aimed at the scenario where the load distribution of each cell is uniform, that is, the application scenario where the service load of each cell is exactly the same. Since the reserved resources for interference coordination in each cell are immutable, As a result, it cannot be applied to scenarios where the load distribution of each cell is uneven, that is to say, in the scenario where the load distribution of each cell is uneven, the existing semi-static interference coordination technical solution cannot effectively achieve interference coordination

Images