US 12,750,084 B2 · Systems and methods for adaptive selection of estimation taps

Abstract

A system includes: a first transmitter to transmit a first signal; a second transmitter to transmit a second signal; a receiver to receive a downlink signal, the downlink signal including a desired signal and an interference signal corresponding to the first and second signals; a processor; and memory including instructions that, when executed by the processor, cause the processor to: select an interference function based on center frequencies of the first and second transmitters and the receiver; calculate correlation values based on a first delay between the receiver and a reference transmitter, and a second delay between the first and second transmitters; select one or more filter taps based on the calculated correlation values; estimate the interference signal based on the selected one or more filter taps and the interference function; determine the desired signal from the downlink signal according to the estimated interference signal; and transmit the desired signal.

Claims20

Dependent claims

A system comprising:

a first transmitter configured to transmit a first signal;
a second transmitter configured to transmit a second signal;
a receiver configured to receive a downlink signal, the downlink signal comprising a desired signal and an interference signal corresponding to the first signal and the second signal;
a processor;
and
memory comprising instructions that, when executed by the processor, cause the processor to:
select an interference function based on center frequencies of the first transmitter, the second transmitter, and the receiver;
calculate correlation values based on a first delay between the receiver and a reference transmitter from among the first and second transmitters, and a second delay between the first and second transmitters, the first delay and the second delay being used as inputs to calculate the correlation values based on the selected interference function;
select one or more filter taps based on the calculated correlation values;
estimate the interference signal based on the selected one or more filter taps and the interference function;
determine the desired signal from the downlink signal according to the estimated interference signal;
and
transmit the desired signal.

10 more elements

A method comprising:

selecting an interference function based on center frequencies of a first transmitter configured to transmit a first signal, a second transmitter configured to transmit a second signal, and a receiver configured to receive a downlink signal, the downlink signal comprising a desired signal and an interference signal corresponding to the first signal and the second signal;
calculating correlation values based on a first delay between the receiver and a reference transmitter from among the first and second transmitters, and a second delay between the first and second transmitters, the first delay and the second delay being used as inputs to calculate the correlation values based on the selected interference function;
selecting one or more filter taps based on the calculated correlation values;
estimating the interference signal based on the selected one or more filter taps and the interference function;
determining the desired signal from the downlink signal according to the estimated interference signal;
and
transmitting the desired signal.

4 more elements

Non-transitory computer readable medium storing instructions that, when executed, cause a communication device to:

select an interference function based on center frequencies of a first transmitter configured to transmit a first signal, a second transmitter configured to transmit a second signal, and a receiver configured to receive a downlink signal, the downlink signal comprising a desired signal and an interference signal corresponding to the first signal and the second signal;
calculate correlation values based on a first delay between the receiver and a reference transmitter from among the first and second transmitters, and a second delay between the first and second transmitters, the first delay and the second delay being used as inputs to calculate the correlation values based on the selected interference function;
store the calculated correlation values in a 2D structure;
select one or more filter taps based on the correlation values stored in the 2D structure;
estimate the interference signal based on the selected one or more filter taps and the interference function;
determine the desired signal from the downlink signal according to the estimated interference signal;
and
transmit the desired signal.

5 more elements

Dependencies are inferred from the claim text.

Systems and methods for adaptive selection of estimation taps

Life of this patent

Systems and methods for adaptive selection of estimation taps

Life of this patent

Abstract

Claims20