Feedback interval control in MIMO-systems
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专利名称：Feedback interval control in MIMO-systems 发明人：Xiao, Hui,Sarperi, Luciano
申请号：EP09180243.9
申请日：20091221
公开号：EP2337235B1
公开日：
20130417
专利内容由知识产权出版社提供
摘要：A method is disclosed which is intended for use in multiple-input multiple-output (MIMO) wireless communication systems of the kind which have a plurality of adjacent cells, each containing one or more base stations operable to transmit signals to, and receive signals transmitted from, one or more users. The users are operable to feed back to the relevant base station(s) channel state information relating to channel(s) between the relevant base station(s) and the users, and the base stations are operable to adapt signals for transmission to users, based on the fed back channel state information, to account for channel variations. The proposed method involves obtaining information related to time-variation in channel spatial structure, and adjusting the timing with which a user feeds back channel state information, based on the time variation in channel spatial structure. The invention helps to achieve a suitable balance between the feedback overhead and system performance, and may be operable in systems operating according to various CoMP transmission modes.
申请人：FUJITSU LTD
地址：JP
国籍：JP
代理机构：Wilding, Frances Ward 更多信息请下载全文后查看。