Methods and systems for dynamic rf band allocation
AssigneepSemi Corporation
InventorPeter BACON
Life of this patent
Estimating the term…
Abstract
Methods and systems for frequency band allocation are provided. A tunable/selectable passband filter is disclosed that changes based on the time and location of the user equipment. Additionally, a method of allocating and optimizing upload and download bands is provided to mitigate inter-modulation distortion due to intermodular distortion effects from strong uplink channels.
Claims26
A tunable filter configured to:
- select a passband over a first frequency band and a second frequency band, where the first band overlaps the second band;
- determine a current time of the tunable filter;
- determine a location of the tunable filter;
- compare the current time to a time of band availability for a region;
- and
- when the current time is equal to or after the time of band availability and the location is in the region, adjust the passband to cover frequencies made available at the time of band availability for the region.
A tunable filter with a nominal passband having a selectable center frequency, the tunable filter configured to:
- determine a current time of the tunable filter;
- determine a location of the tunable filter;
- and
- select a center frequency of the nominal passband based on the current time, the location, and a sequential time of frequency availability based on region.
A selectable filter with a plurality of nominal passbands each with different center frequencies, the selectable filter configured to:
- determine a current time of the tunable filter;
- determine a location of the tunable filter;
- and
- select a nominal passband from the plurality of nominal passbands based on the current time, the location, and a sequential time of frequency availability based on region.
A method for reducing self-desense in a downlink band due to two or more uplink bands of an uplink transmission, the method comprising:
- selecting two or more uplink bands;
- selecting a downlink band for a device using the two or more uplink bands;
- determining, by computation or retrieval or direct measurement, intermodulation distortion values for available uplink band combinations and available downlink bands;
- using the intermodulation distortion values to determine if there is intermodulation distortion for the downlink band given the two or more uplink bands;
- determining link margins of each of the two or more uplink bands by link budget estimation or retrieval or direct measurement;
- and
- increasing the modulation order of one or more uplink bands of the two or more uplink bands that has a greatest link margin.
Dependencies are inferred from the claim text.