Frame alignment and cyclic extension partitioning

摘要

A digital subscriber line communication system 10 is provided. The digital subscriber line communication system 10 includes first and second transceivers 12, 14 . The first transceiver 12 communicates discrete multitone symbols using frequency division duplexing. The first transceiver 12 is operable to estimate a propagation delay. The second transceiver 14 communicates with the first transceiver 12 and receives the estimated propagation delay from the first transceiver 12 . The second transceiver 14 uses the estimated propagation delay to determine a round-trip propagation delay. The second transceiver 14 determines a transmission time advance based at least partially on the round-trip propagation delay.