Patent ID: 6128276
Filing Date: 2000-10-03
Classification: H04B,H04L

Abstract:
A multiple access communication system, comprising:at least one radio transmitter for transmitting a plurality of radio frequency (RF) carriers;at least one radio receiver for receiving said at least one subset of at least two of said plurality of radio frequency carriers;at least one spreader connected to each of the transmitters for independently and redundantly modulating the amplitude and phase of at least two of said (RF) carriers with a first digital spreading gain and first data;at least one despreader connected to each of the receivers for independently demodulating the amplitude and phase of at least two of said (RF) carriers with said first digital spreading gain to recover said first data; andmultiple access means connected to the transmitters, receivers, spreaders and despreaders for providing separate channels of communication by at least one of space-division multiple access (SDMA), frequency-division multiple access (FDMA) and code-division multiple access (CDMA).