Patent ID: 8571589
Filing Date: 2013-10-29
Classification: H04L

Abstract:
1. A wireless communication system having a plurality of base stations and a control station controlling said plurality of base stations; wherein: respective ones of said plurality of base stations are provided with an antenna having directivity and carry out transmission and reception of signals with patterns (below called “directivity patterns”) for which a plurality of directions within the cell covered by the base station are specified; said control station is configured to allocate to said plurality of base stations antenna patterns associated with directivity patterns for each of said plurality of frequency bands that can be used by the respective base stations and to transmit, to respective ones of said plurality of base stations, parameters for associating said allocated antenna patterns with directivity patterns for each of said plurality of frequency bands; said plurality of base stations are configured to associate directivity patterns with the plurality of frequency bands on the basis of parameters received from the control station and to transmit and receive signals to and from an antenna in accordance with the associated directivity patterns; and Walsh functions are used for the association of said antenna patterns with the directivity patterns, and the parameters transmitted from said control station to said plurality of respective base stations are Walsh function lengths and line numbers.