| 摘要 |
PROBLEM TO BE SOLVED: To enable each of base stations to speedily acquire a channel for simultaneous communication(SC) which is free of interference when the SC is performed by a multi-zone type system. SOLUTION: When the start of SC is indicated from a command console 14, a base station 16 searches a free channel from a list of channels give to the respective base stations 16 and the free channel is reported as a channel for SC to a mobile station 18. The mobile station 18, on the other hand, opens a reception window for the channel reported from the base station 16. At this time, different channels are specified in the channel list for the adjacent base stations 16.
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