Patent ID: 6741865
Filing Date: 2004-05-25
Classification: H04B

Abstract:
A modified Digital European Cordless Telecommunications (DECT) system configured to operate using Time Division Multiple Access/Frequency Division Multiple Access (TDMA/FDMA) technology in the 2.4 GHz Industrial Scientific and Medical (ISM) frequency band, the system comprising:a 20 dB communication channel having a maximum bandwidth of 1 MHz; and radio-frequency (RF) units, said RF units each matched to the ISM frequency band and configured to selectively communicate with others of said RF units via said communication channel, said RF units having a reduced data transfer rate of about 576 kbit/s being half of a prescribed DECT data transfer rate of about 1152 kbit/s, said RF units having a reduced channel separation reduced from a DECT channel separation of about 1728 kHz.