Patent ID: 6011788
Filing Date: 2000-01-04
Classification: H04W

Abstract:
A method for operating a synchronous Code Division Multiple Access (S-CDMA) radio frequency communication system having a host transceiver unit and a plurality of user transceiver units, comprising steps of:defining a super-frame to be comprised of N sequential frames of data;for a user transceiver unit obtaining access to the host transceiver unit, receiving frames of data transmitted by the host transceiver unit and initially aligning a receiver and a transmitter timing of the user transceiver unit to a super-frame boundary of the received frames;transmitting frames of data from the user transceiver unit to the host transceiver unit using the initial timing alignment;detecting at the host transceiver unit a difference between the arrival of the transmitted frames of data and a super-frame boundary; andtransmitting a timing correction parameter from the host transceiver unit to the user transceiver unit in order to align the transmitted frames of data to the super-frame boundary.