| 摘要 |
PROBLEM TO BE SOLVED: To reduce interference noise or heat noise and to improve a repetition gain. SOLUTION: A beam formed by a base station antenna 10 is directed to a base station A. A beam formed by a base station antenna 11 is directed to a base station B. As a result, an area A of the base station A is formed by a slave unit antenna 20 for repeating a signal received by the base station antenna 10 to a dead zone or an interference zone, and an area B of the base station B is formed by a slave unit antenna 21 for repeating a signal received by the base station antenna 11 to a dead zone or an interference zone. Therefore, a slave unit located at a position where the areas A and B overlap with each other, in the dead zone or interference zone is capable of performing communication by soft hand-over utilizing the base station A and the base station B. COPYRIGHT: (C)2005,JPO&NCIPI
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