Method and apparatus for increasing sensitivity in a communication system base station
OwnerAmr Abdelmonem, Scott Bundy +3inventors
InventorsAmr Abdelmonem, Scott Bundy, Benjamin Golant, Keith Mafield, Ted Myers
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Abstract
A communication station includes a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to an antenna. The low-loss filter is coupled to a low-noise amplifier having an input and an output. The communication station also includes an adaptive notch filter (ANF) module coupled to the output of the low-noise amplifier. A receiver is coupled to the output of the ANF module and is responsive to the communication signal.
Claims112
A communication station having an antenna for receiving a communication signal, the communication station comprising:
- a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to the antenna;
- a low-noise amplifier having an input and an output, wherein the input of the low-noise amplifier is coupled to the output of the low-loss filter;
- an adaptive notch filter (ANF) module having an input and an output, wherein the input of the ANF module is coupled to the output of the low-noise amplifier;
- and
- a receiver having an input coupled to the output of the ANF module and responsive to the communication signal.
A communication station having an antenna for receiving a communication signal, the communication station comprising:
- a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to the antenna;
- a low-noise amplifier having an input and an output, wherein the input of the low-noise amplifier is coupled to the output of the low-loss filter;
- a channel filter having an input and an output, wherein the input of the channel filter is coupled to the output of the low-noise amplifier;
- an adaptive notch filter (ANF) module having an input and an output, wherein the input of the ANF module is coupled to the output of the channel filter;
- and
- a receiver having an input coupled to the output of the ANF module and responsive to the communication signal.
A communication station having an antenna for receiving a communication signal, the communication station comprising:
- a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to the antenna;
- a low-noise amplifier having a first gain, an input and an output, wherein the input of the low-noise amplifier is coupled to the output of the low-loss filter;
- an original equipment manufacturer (OEM) front-end having a second gain, an input and an output, wherein the input of the OEM front-end is coupled to the output of the low-noise amplifier;
- an adaptive notch filter (ANF) module having an input and an output, wherein the input of the ANF module is coupled to the output of the OEM front-end and wherein the first and second gains are optimized to balance noise figure performance and intermodulation distortion performance at the output of the ANF module;
- and
- a receiver having an input coupled to the output of the ANF module and responsive to the communication signal.
A communication station having an antenna for receiving a communication signal, the communication station comprising:
- a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to the antenna;
- a low-noise amplifier having an input and an output, wherein the input of the low-noise amplifier is coupled to the output of the low-loss filter;
- an adaptive notch filter (ANF) module having an input and an output, wherein the ANF module has an output third-order intercept (TOI) performance that exceeds the equivalent output TOI performance of the low-loss filter and the low-noise amplifier;
- and
- a receiver having an input coupled to the output of the ANF module and responsive to the communication signal.
A communication station having an antenna for receiving a communication signal, the communication station comprising:
- an adaptive notch filter (ANF) module having an input and an output, wherein the input of the ANF module is coupled to the antenna;
- a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to the output of the ANF module;
- a low-noise amplifier having an input and an output, wherein the input of the low-noise amplifier is coupled to the output of the low-loss filter;
- and
- a receiver having an input coupled to the output of low-noise amplifier.
A communication station having an antenna for receiving a communication signal, the communication station comprising:
- a low-loss filter having an input and an output, wherein the input of the low-loss filter is coupled to the antenna;
- a low-noise amplifier having an input and an output, wherein the input of the low-noise amplifier is coupled to the output of the low-loss filter;
- a splitter having an input and an output, wherein the input of the splitter is coupled to the output of the low-noise amplifier;
- an attenuator having an input and an output, wherein the input of the attenuator is coupled to the output of the splitter output;
- a channel filter having an input and an output, wherein the input of the channel filter is coupled to the output of the attenuator;
- an adaptive notch filter (ANF) module having an input and an output, wherein the input of the ANF module is coupled to the output of the channel filter;
- and
- a receiver having an input coupled to the output of the ANF module and responsive to the communication signal.
A method of processing a communication signal received by an antenna of a communication station, the method comprising:
- filtering the communication signal with a low-loss filter to produce a first signal;
- amplifying the filtered signal with a low-noise amplifier to produce a second signal;
- scanning the second signal for narrowband interference and selectively removing narrowband interference therefrom to produce a third signal;
- and
- demodulating the third signal.
Dependencies are inferred from the claim text.