Coexistence management for radio frequency communication systems
AssigneeSkyworks Solutions, Inc.
InventorAnand Raghavan
Life of this patent
Estimating the term…
Abstract
Radio frequency (RF) communication systems with coexistence management are provided herein. In certain embodiments, a method of coexistence management includes generating an RF observation signal based on observing a cellular transmit signal using a cellular front end system, processing the RF observation signal to generate digital observation data using a cellular transceiver, generating a digital wireless local area network (WLAN) receive signal based on processing an RF WLAN receive signal using a WLAN transceiver, compensating the digital baseband WLAN receive signal for RF signal leakage based on the digital observation data using a discrete time cancellation circuit of the WLAN transceiver.
Claims20
A mobile device comprising:
- a cellular front end system configured to generate a radio frequency observation signal based on observing a cellular transmit signal;
- a cellular transceiver configured to process the radio frequency observation signal to generate digital observation data;
- and
- a wireless local area network transceiver configured to generate a digital wireless local area network receive signal based on processing a radio frequency wireless local area network receive signal, the wireless local area network transceiver including a discrete time cancellation circuit configured to compensate the digital wireless local area network receive signal for radio frequency signal leakage based on the digital observation data, the discrete time cancellation circuit including a spectral regrowth modeling circuit configured to estimate an amount of aggressor spectral regrowth present in the radio frequency wireless local area network receive signal based on the digital observation data.
A method of coexistence management in a mobile device, the method comprising:
- generating a radio frequency observation signal based on observing a cellular transmit signal using a cellular front end system;
- processing the radio frequency observation signal to generate digital observation data using a cellular transceiver;
- generating a digital wireless local area network receive signal based on processing a radio frequency wireless local area network receive signal using a wireless local area network transceiver;
- and
- compensating the digital baseband wireless local area network receive signal for radio frequency signal leakage based on the digital observation data using a discrete time cancellation circuit of the wireless local area network transceiver, including using a spectral regrowth modeling circuit of the discrete time cancellation circuit to estimate an amount of aggressor spectral regrowth present in the radio frequency wireless local area network receive signal based on the digital observation data.
A wireless local area network transceiver comprising:
- a wireless local area network receive channel configured to process a radio frequency wireless local area network receive signal from a wireless local area network front end system to generate a digital wireless local area network receive signal;
- an input configured to receive digital observation data from a cellular transceiver;
- and
- a discrete time cancellation circuit configured to compensate the digital wireless local area network receive signal for radio frequency signal leakage based on the digital observation data, the discrete time cancellation circuit including a spectral regrowth modeling circuit configured to estimate an amount of aggressor spectral regrowth present in the radio frequency wireless local area network receive signal based on the digital observation data.
Dependencies are inferred from the claim text.