Efficient communication system using time division multiplexing and timing adjustment control

摘要: A system for time division multiplexed communication over a single frequency band in which guard overhead is reduced by active adjustment of reverse link transmission timing as function round trip propagation time. In one embodiment, during first portion frame, base station issues burst segmented into slots comprising data directed to each user station. After collective time, the stations respond, one, allocated on same station, with only minimal times between reception. order prevent interference among transmissions, measures and commands advance or retard their necessary. To establish initial range new short message sent (or, alternatively, an available slot), from calculates delay hence distance Messages may be interleaved so reduce effects potential noise interference.