Patent ID: 6853629

Claim:
A system for highly bandwidth-efficient communications, comprising: a base station receiver for receiving multiple incoming wireless signals from multiple remote stations, wherein the incoming wireless signals comprise multiple discrete frequency tones that are orthogonal frequency division multiplexed (OFDM) in a first frequency band during multiple time division multiple access (TDMA) intervals, and wherein the multiple remote stations transmitting to the base station receiver are not always identical in successive TDMA intervals; and a base station transmitter for transmitting multiple outgoing wireless signals to multiple remote stations, wherein the outgoing wireless signals comprise multiple discrete frequency tones that are orthogonal frequency division multiplexed (OFDM) in a second frequency band during multiple time division multiple access (TDMA) intervals, and wherein the multiple remote stations intended to receive the outgoing wireless signals from the base station receiver is not always identical in successive TDMA intervals.