Radio Communication Method, Radio Communication System, Radio Base Station, and Radio Terminal Station

摘要

This radio communication method is used to perform spatial multiplexing communication between cells in the overlap cell environment. In the MU-MIMO overlap cell environment, when a null is formed between a radio base station and a radio terminal station belonging to different cells, a first set of a “call signal” and a “response signal” is used to perform mutual detection with the radio base station and the radio terminal station belonging to different cells, and then a null is formed so as not to cause interference of radio waves between the radio base station and the radio terminal station belonging to different cells. At this time, the addresses of the radio base station and the radio terminal station are used to discriminate whether the radio base station and the radio terminal station belong to the same cell or different cells.

主权项

1. A radio communication method adapted to a radio communication system, including a plurality of radio base stations forming their cells and radio terminal stations, each of which belongs to each of the cells so as to communicate by radio with the radio base station forming the cell therefor, said radio communication method, applied to the radio base station, comprising:
a measurement step for measuring signal intensities of radio signals, received and transmitted with radio terminal stations, with respect to a plurality of predetermined frequency bands and a plurality of reception weights which are determined to detect radio signals received and transmitted with radio terminal stations; a frequency band determination step for determining frequency bands with signal intensities below a predetermined level among the plurality of frequency bands based on the measurement result of the measurement step; and a communication step for receiving and transmitting radio signals by use of frequency bands determined by the frequency band determination step.