US 9,960,874 B2 · Techniques for managing interference in a network environment

Abstract

Embodiments of the present invention provide techniques for managing interference across multiple transceivers in an access point in a network environment. A wireless networking system can include various access points. These access points may each include multiple transceivers. However, with multiple transceivers in close proximity, signals transmitted by one transceiver may interfere with another transceiver through crosstalk, adjacent channel interference, or other form of interference. Each access point may include an interference manager which can use an interference model to modify a signal transmitted by one transceiver to be used to cancel corresponding interference caused in a second transceiver. Interference can be modeled prior to deployment and/or at deployment using a series of test signals transmitted by one transceiver while the corresponding interference is monitored on a second transceiver. The interference model can be used to transform subsequent signals and used to filter interference from the second transceiver.

Claims15

Dependent claims

A computer-implemented method, comprising:

monitoring interference between a plurality of transceivers in an access point, comprising:
transmitting a test signal using a first transceiver;
and
receiving an interference signal using a second transceiver;
based on the monitored interference, generating an interference model for at least one pair of transceivers from the plurality of transceivers, comprising:
analyzing the test signal to determine one or more test signal characteristics;
analyzing the interference signal to determine one or more interference signal characteristics;
and
comparing the one or more test signal characteristics to the one or more interference signal characteristics to determine the interference model;
transmitting a signal using the first transceiver;
transforming the signal using the interference model for the at least one pair of transceivers, the at least one pair of transceivers including the first transceiver;
and
filtering signals received through the second transceiver using the transformed signal.

10 more elements

A wireless networking system comprising:

at least one access point, include a computer readable medium and processor, the at least one access point configured to:
monitor interference between a plurality of transceivers in an access point, comprising:
transmit a test signal using a first transceiver;
and
receive an interference signal using a second transceiver;
based on the monitored interference, generate an interference model for at least one pair of transceivers from the plurality of transceivers, comprising:
analyze the test signal to determine one or more test signal characteristics;
analyze the interference signal to determine one or more interference signal characteristics;
and
compare the one or more test signal characteristics to the one or more interference signal characteristics to determine the interference model;
transmit a signal using the first transceiver;
transform the signal using the interference model for the at least one pair of transceivers, the at least one pair of transceivers including the first transceiver;
and
filter signals received through the second transceiver using the transformed signal.

11 more elements

A non-transitory computer readable storage medium including instructions stored thereon which, when executed by a processor, cause the processor to:

monitor interference between a plurality of transceivers in an access point, comprising:
transmit a test signal using a first transceiver;
and
receive an interference signal using a second transceiver;
based on the monitored interference, generate an interference model for at least one pair of transceivers from the plurality of transceivers, comprising:
analyze the test signal to determine one or more test signal characteristics;
analyze the interference signal to determine one or more interference signal characteristics;
and
compare the one or more test signal characteristics to the one or more interference signal characteristics to determine the interference model;
transmit a signal using the first transceiver;
transform the signal using the interference model for the at least one pair of transceivers, the at least one pair of transceivers including the first transceiver;
and
filter signals received through the second transceiver using the transformed signal.

10 more elements

Dependencies are inferred from the claim text.

Techniques for managing interference in a network environment

Life of this patent

Techniques for managing interference in a network environment

Life of this patent

Abstract

Claims15