SYSTEM AND METHOD FOR INCREASING CELLULAR SYSTEM CAPACITY USING SAME FREQUENCY AND TIME SLOT IN UPLINK AND DOWNLINK TRANSMISSIONS

摘要

A method for increasing cellular system capacity includes receiving a signal in a time slot and a frequency band and transmitting a signal in the same time slot and the same frequency band. An adaptive self-interference canceller (120) is used to reduce the radio frequency self-interference created by receiving and transmitting signals in the same time slot and the same frequency band. The self-interference can be further reduced by using: a circulator (104) connected between an antenna (102), a receiver (114), and a transmitter (118); separate antennas for receiving and transmitting signals can be used; and/or an adaptive antenna.