Adaptive radio frequency local oscillator tuning
AssigneeQUALCOMM Incorporated
InventorsJibing Wang, Brian Clarke Banister
Life of this patent
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Abstract
Methods, systems, and devices are described for adaptively or dynamically tuning a radio frequency (RF) local oscillator (LO) for wireless communications. In one example, a radio may receive an RF signal and the LO of a radio may be tuned to a frequency that is an offset from its reception (RX) center frequency to deal with interference from another signal, such as one being transmitted using a different radio access technology (RAT) than that of the radio. The offset may be determined based upon an effect of the tuning on an attribute of the RF signal. In addition, the offset may be determined based on interference caused by the other signal.
Claims30
A method for wireless communication, comprising:
- receiving, at a first radio operating at a first frequency, a first signal;
- tuning a local oscillator (LO) of the first radio to a second frequency;
- identifying an effect on an attribute of the first signal caused by the tuning;
- and
- selecting an offset for the second frequency, the offset based at least in part on the identified effect.
An apparatus for wireless communication, comprising:
- a first radio operating at a first frequency;
- a receiver of the first radio to receive a first signal;
- a local oscillator (LO) of the first radio;
- and
- an oscillator controller to tune the LO to a second frequency based at least in part on an effect on an attribute of the first signal caused by the tuning.
An apparatus for wireless communication, comprising:
- means for receiving, at a first radio operating at a first frequency, a first signal;
- means for tuning a local oscillator (LO) of the first radio to a second frequency;
- means for identifying an effect on an attribute of the first signal caused by the tuning;
- and
- means for selecting an offset for the second frequency, the offset based at least in part on the identified effect.
A non-transitory computer-readable medium storing computer-executable code for wireless communications, the code executable by a processor to:
- receive, at a first radio operating at a first frequency, a first signal;
- tune a local oscillator (LO) of the first radio to a second frequency;
- identify an effect on an attribute of the first signal caused by the tuning;
- and
- select an offset for the second frequency, the offset based at least in part on the identified effect.
Dependencies are inferred from the claim text.