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Apparatus and method of synchronizing a transmitter in a subscriber terminal of a wireless telecommunications system

  • US 5,696,766 A
  • Filed: 11/16/1995
  • Issued: 12/09/1997
  • Est. Priority Date: 06/02/1995
  • Status: Expired due to Fees
First Claim
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1. A method of synchronizing a transmitter in a subscriber terminal of a wireless telecommunications system, comprising the steps of:

  • establishing a downlink communication path from a central terminal to the subscriber terminal;

    transmitting from a transmitter in the central terminal a downlink signal;

    receiving at a receiver in the subscriber terminal the downlink signal;

    identifying a code synchronization signal within the downlink signal;

    comparing a code and phase of the code synchronization signal with a code and a phase of a slave code sequence in the subscriber terminal;

    adjusting the phase of the slave code sequence to match the phase of the code synchronization signal;

    establishing an uplink communication path in response to the phase of the transmitter in the subscriber terminal being equivalent to a phase of a receiver in the central terminal.

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