ASYMMETRICAL FORWARD/REVERSE TRANSMISSION BANDWIDTH

摘要

A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmissi on bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two pseudo-random code generators which can be clocked separately. Alignment of the uplink and downlink pseudo-random spreading codes is achieved by truncating the code sequence for the lower speed link at the conclusion of a complete code sequence for the higher speed link.