System and method for increasing cellular system capacity by the use of the same frequency and time slot for both uplink and downlink transmissions
AssigneeInterDigital Technology Corporation
InventorPaul Marinier
Life of this patent
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Abstract
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 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: (1) a circulator connected between an antenna, a receiver, and a transmitter; (2) separate antennas for receiving and transmitting signals can be used; and/or (3) an adaptive antenna.
Claims11
A method for increasing cellular system capacity, comprising the steps of:
- receiving a signal in a time slot in a frequency band;
- transmitting a signal simultaneously with said received signal in the same time slot and frequency band;
- using an adaptive self-interference canceller to reduce the radio frequency self-interference created by receiving and transmitting signals in the time slot;
- and
- using a circulator, the circulator being connected between an antenna, a receiver, and a transmitter.
A system for increasing cellular system capacity, comprising:
- an antenna;
- a receiver section connected to said antenna, said receiver section receiving a signal;
- a transmitter section connected to said antenna, said transmitter section transmitting a signal;
- an adaptive self-interference canceller connected between said receiver section and said transmitter section, said adaptive self-interference canceller reducing radio frequency self-interference created when said receiver section receives a signal and said transmitter section simultaneously transmits a signal in the same time slot and the same frequency band;
- and
- a circulator connected between said antenna, said receiver section, and said transmitter section.
Dependencies are inferred from the claim text.