Orthogonal spread spectrum time division multiple accessing mobile subscriber access system

Claim 1

A mobile subscriber system comprising: a plurality of subscriber stations each of which is assigned a respective distinct time interval within a channel frame period for transmission and reception; a separate transmitter means at all of said subscriber stations for transmitting communication carrier signals omnidirectionally at a first frequency common to all said transmitter means, said transmitter means including a code multiplexer applying the same multiplexed code signals to said transmitter within the respective assigned time interval; a central node station including carrier frequency translation means for retransmitting said code signals at a second carrier frequency relative to a reference frequency without change of relative timing; receiver means at each of said subscriber stations for receiving code signals transmitted by said control node at said second carrier frequency which is common to all of said receiver means; each of said receiver means including means for detecting said retransmitted code signals to produce an output signal occuring only during the respective time interval within the corresponding channel frame period, and means at each subscriber station for synchronizing timing of that station's code signals retransmitted from said central node station with said reference frequency, by controlling that station's transmitter frequency.