Patent ID: 6650628
Filing Date: 2003-11-18
Classification: H04L

Abstract:
A broadband wireless system comprising: a base station connected to an asynchronous transfer mode (ATM) backbone network and having a transceiver for bi-directional digital communications over a radio frequency (RF) wireless link via an ATM radio interface card (ARIC): and a network interface unit (NIU) located at a customer premise, said NIU having a transceiver for bi-directional wireless communication with said base station over said wireless link; wherein said radio interface means includes multiplexing means for both time division multiple access (TDMA) and frequency division multiplexing (FDM) and modulation means for both quadrature phase shift key (OPSK) and quadrature amplitude modulation (QAM) whereby TDMA/QPSK is employed for low bandwidth services and FDM/QAM is employed for high bandwidth services.