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    • 10. 发明申请
    • METHOD FOR DOWNLINK MULTI-ANTENNA MULTI-BASE STATION INTERFERENCE COORDINATION AND BASE STATION
    • 下行多天线多台站干扰协调与基站的方法
    • WO2011083875A1
    • 2011-07-14
    • PCT/JP2011/050603
    • 2011-01-07
    • SHARP KABUSHIKI KAISHADING, MingLIU, RenmaoLIANG, YongmingZHANG, YingyuYANG, Zeng
    • DING, MingLIU, RenmaoLIANG, YongmingZHANG, YingyuYANG, Zeng
    • H04W16/10H04B7/04H04J99/00H04W16/28H04W92/20
    • H04W72/0426H04L1/06H04W16/28H04W72/082H04W88/08H04W92/20
    • The present invention provides a base station in a downlink multi-antenna multi-base station system comprising: a spatial domain information acquisition unit for acquiring spatial domain characteristic information for downlink interference; an interference coordination indication generation unit for generating an interference coordination indication based on the spatial domain characteristic information for downlink interference acquired by the spatial domain information acquisition unit; and a background interface communication unit for transmitting, by means of background interface communication, the generated interference coordination indication to a neighboring base station, instructing the neighboring base station to perform resource scheduling, thereby reducing or eliminating interference on the base station. Additionally, the present invention also provides a method for interference coordination, which is capable of reducing or eliminating interference on a serving base station from its neighboring base stations by utilizing an interference coordination indication transmitted from the serving base station to its neighboring base stations. With the present invention, only a small amount of inter-base station signaling interaction is required to achieve distributed inter-cell interference coordination. Thus, the present invention has the advantages of low signaling overhead, simple implementation, decreased delay, flexible adaptation and the like.
    • 本发明提供一种下行链路多天线多基站系统中的基站,包括:空间域信息获取单元,用于获取用于下行链路干扰的空间域特征信息; 干扰协调指示生成单元,用于基于由空域信息获取单元获取的下行链路干扰的空间域特性信息,生成干扰协调指示; 以及背景接口通信单元,用于通过背景接口通信将生成的干扰协调指示发送到相邻基站,指示相邻基站执行资源调度,从而减少或消除对基站的干扰。 此外,本发明还提供了一种干扰协调的方法,其能够通过利用从服务基站向其相邻基站发送的干扰协调指示来减少或消除从其相邻基站对服务基站的干扰。 利用本发明,仅需要少量的基站间信令交互来实现分布式小区间干扰协调。 因此,本发明具有信令开销低,实现简单,延迟延迟,适应灵活等优点。