| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce interference of control signals transmitted at the same timing. <P>SOLUTION: An adaptive array radio base station that adopts a TDMA/TDD system and applies antenna weights to a plurality of antennas synchronizes a transmission/reception timing of a radio signal with another radio base station, and allocates a control channel for transmitting its own control signal to a time slot based on a transmission timing of a control signal received from the another radio base station and a reception level. When the control signal is transmitted, a control unit calculates the antenna weight based on the control signal transmitted by the another radio base station in the case that the control unit makes a transmission unit transmit the control signal at the same timing as the another radio base station. <P>COPYRIGHT: (C)2012,JPO&INPIT |
