| 摘要 |
In a code division multiple access mobile communication system, a communication signal is modulated and multiplexed with different diffusion codes and is used in data communication between a base station (30) and each of mobile units (40, 41, 42). The communication signal is a time division multiplex signal with a repeated frame having a plurality of time slots (TS0, TS1, TS2) assigned to different radio channels, respectively. A slot synchronous signal is produced in accordance with a reference clock signal of a global positioning system. The time slots are synchronized between the base station and each of the mobile units in accordance with the slot synchronous signal.
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