User selection algorithm for reducing cross-tier interference

The invention provides a user selection algorithm for reducing cross-tier interference. Chord distances of interference channel matrixes between a macro eNB and each user in a micro cell are calculated to select users keeping directions of the interference channel matrixes parallel, namely, users ke...

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Bibliographic Details
Main Authors HAN DONGSHENG, HAO CONGHUI, CHEN ZHIXIONG
Format Patent
LanguageEnglish
Published 16.12.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:The invention provides a user selection algorithm for reducing cross-tier interference. Chord distances of interference channel matrixes between a macro eNB and each user in a micro cell are calculated to select users keeping directions of the interference channel matrixes parallel, namely, users keeping the chord distances among the interference channel matrixes smallest are taken as service users. According to the algorithm, the chord distances are taken as measurement indexes of the directions among the interference channel matrixes, and parallelism is kept among the interference channel matrixes as much as possible by the chord distances specific to the characteristics of a multi-base-station coordinated system, so that cross-tier inter-cell interference between a macro cell and the micro cell is optimized, and the aim of minimizing interference of the micro cell on the micro cell users is fulfilled.
Bibliography:Application Number: CN201510606380