Patent ID: 7031346

Claim:
A range-extending communication architecture for an asymmetrical digital subscriber line (ADSL) communication system having an upstream site adapted to be coupled to an upstream ADSL communication device that provides access to one or more digital communication resources of a telecommunication network, and a downstream site having a downstream ADSL communication device adapted to interface ADSL communication signals with customer premises equipment, comprising: a communication link coupled between said upstream site and said downstream site; an upstream site transceiver that is operative to process a downstream ADSL signal provided by said upstream ADSL communication device with a downstream plain old telephone system (POTS) signal into a composite downstream modulated signal for transmission over said communication link to said downstream site; and a downstream site transceiver that is operative to receive said composite downstream modulated signal transmitted over said communication link front said upstream site transceiver, and to output said downstream POTS signal for application to a downstream POTS device, and to output said downstream ADSL signal for application to said downstream ADSL communication device, and wherein said communication link comprises a long haul loop of the type employed for symmetric digital subscriber loop (SDSL) communications, and wherein said upstream transceiver is adapted to transmit said composite downstream digital signal over said communication link to said downstream site transceiver using trellis coded pulse amplitude modulation (TC-PAM).