| 摘要 |
PROBLEM TO BE SOLVED: To establish synchronization among a plurality of base stations by controlling transmission timing, a transmission carrier frequency, etc. of the plurality of base stations by using control information, so that the plurality of base stations simultaneously perform transmission.SOLUTION: A base station 101-1 transmits a first synchronization establishment signal to which the transmission time is attached, to another base station 101-2. The base stations 101-1 and 101-2 transmit second synchronization establishment signals to terminal stations 201-1 to 201-N and 202-1 to 202-M on the basis of the transmission time. The terminal stations 201-1 to 201-N and 202-1 to 202-M receive the second synchronization establishment signals from the respective base stations 101-1 and 101-2, estimate synchronization establishment information between the base stations 101-1 and 101-2, transmit third synchronization establishment signals to which the synchronization establishment information is attached, to the base stations 101-1 and 101-2. The base stations 101-1 and 101-2 simultaneously perform communication with the subordinate terminal stations on the basis of the synchronization establishment information attached to the third synchronization establishment signal. |
