Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Patent
1995-11-16
1997-12-09
Olms, Douglas W.
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
375367, H04J 1300
Patent
active
056967667
ABSTRACT:
A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The downlink signal (212) includes an overhead channel (224) having a code synchronization signal (234). The code synchronization signal (234) is capable of adjusting a phase of a transmitter (204) in the subscriber terminal (20). A receiver (206) in the central terminal (10) monitors an uplink signal (214) transmitted by the transmitter (204) in the subscriber terminal and provides changes to the code synchronization signal (234) such that the transmitter (204) is synchronized to the receiver (206). Synchronization of the transmitter (204) in the subscriber terminal (20) to the receiver (206) in the central terminal (10) facilitates establishment of an uplink communication path from the subscriber terminal (20) to the central terminal (10).
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Cooper Ian L.
Yeung Joemmane Chi Cheung
DSC Communications Corporation
Olms Douglas W.
Patel Ajit
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