Patent ID: 7564868

Claim:
A digital transceiver for multicarrier modulation communications, comprising: pre-modulation circuitry for performing pre-modulation processing of digital data; digital signal processing circuitry for performing multicarrier modulation of digital data processed by the pre-modulation circuitry; configurable port subsystem for subdividing one or more high-data-rate and high-signaling-bandwidth ports into multiple lower-data-rate and lower-signaling-bandwidth ports; interface circuitry, for communicating modulated data from the digital signal processing circuitry to one or more of the subdivided ports; data memory, coupled to the digital signal processing circuitry, for storing modulated data corresponding to the selected number of ports, wherein the selected number of ports is selected from a set of port configurations including a first number of ports, each having a data rate and a signaling bandwidth, and a second number of ports, each having a data rate and a signaling bandwidth that is scaled relative to the data rate and signaling bandwidth of each of the first number of ports according to a relationship between the first and second numbers of ports; and configuration circuitry, for coupling the pre-modulation circuitry, digital signal processing circuitry, and the interface circuitry, to process transmission data for a selected number of the subdivided ports.