Methods and apparatus for improving performance based on filter characteristics
AssigneeApple Inc.
InventorDawei Zhang
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for improving operational and/or cost performance based on filter characteristics. Existing schemes for measuring filter performance are based on a worst case filter performance across a range of frequencies and temperature. Filter performance can be more accurately characterized over one or more frequency ranges. In one exemplary embodiment the frequency is characterized according to a functional (e.g., linear-average) metric. By providing more accurate representation of the reception/transmission filter performance, both network and device optimizations can aggressively manage available power and handle smaller (tighter) margins.
Claims19
A mobile radio communications apparatus, comprising:
- at least one antenna;
- a radio transceiver having a radio frequency filter tuned to a pass band having a first range of frequencies, the transceiver in signal communication with the at least one antenna;
- where the radio frequency filter is characterized by a first one or more parameters corresponding to the first range of frequencies and a second one or more parameters corresponding to at least a second range of frequencies outside the pass band, wherein the first one or more parameters and the second one or more parameters characterize a filter performance when the radio frequency filter is tuned to the pass band;
- and
- processing apparatus in communication with the transceiver;
- wherein the transceiver is configured to adjust an operation based on a combined performance parameter of the radio frequency filter determined based at least in part on the first one or more parameters and the second one or more parameters.
A method for managing a mobile radio communications apparatus, the method comprising:
- tuning a radio frequency filter to a pass band having a first range of frequencies;
- characterizing the radio frequency filter by a first one or more parameters corresponding to the first range of frequencies and a second one or more parameters corresponding to at least a second range of frequencies outside the pass band, wherein the first one or more parameters and the second one or more parameters characterize a filter performance when the radio frequency filter is tuned to the pass band, wherein the radio frequency filter is included in a radio transceiver that is in signal communication with at least one antenna;
- adjusting an operation of the mobile radio communication apparatus based on a combined performance parameter of the radio frequency filter determined based at least in part on the first one or more parameters and the second one or more parameters.
A non-transitory computer readable medium of a mobile radio communications apparatus, the computer readable medium storing a computer program that is executable by at least one processing unit, the computer program comprising sets of instructions for:
- tuning a radio frequency filter to a pass band having a first range of frequencies;
- characterizing the radio frequency filter by a first one or more parameters corresponding to the first range of frequencies and a second one or more parameters corresponding to at least a second range of frequencies outside the pass band, wherein the first one or more parameters and the second one or more parameters characterize a filter performance when the radio frequency filter is tuned to the pass band, wherein the radio frequency filter is included in a radio transceiver that is in signal communication with the at least one antenna;
- and
- adjusting an operation of the mobile radio communication apparatus based on a combined performance parameter of the radio frequency filter determined based at least in part on the first one or more parameters and the second one or more parameters.
Dependencies are inferred from the claim text.