| 摘要 |
A TDMA radio communication system combines time and frequency division duplex. It includes a first base station transmitting in first downlink frames (118, 120) on a first carrier frequency (FTX) in a first frequency band and receiving in first uplink frames (122), which have no time overlap with the first downlink frames (118, 120), on a second carrier frequency (FRX) in a second frequency band, which has no frequency overlap with the first frequency band. The system also includes a second base station, which has partially overlapping radio coverage area with the first base station, but is geographically separated from the first base station in order to avoid that transmission from one base station disturbs reception from radio terminals on the other base station. The second base station transmits in second downlink frames (128) on the first carrier frequency and receives in second uplink frames (124, 126), which have no time of overlap with the second link frames (128), on the second carrier frequency. The first and second link frames are offset to have no time overlap. A network controller synchronizes transmission from the first and second base stations. |
