Methods and systems for dynamic rf band allocation
AssigneeMurata Manufacturing Co., Ltd.
InventorPeter BACON
Life of this patent
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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.
Claims20
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 communication device, comprising:
- one or more transmitters configured to transmit on two or more uplink (UL) bands;
- one or more receivers configured to receive on a downlink (DL) band;
- and
- a processor configured to:
- determine intermodulation distortion (IMD) values for combinations of available UL bands and available DL bands;
- use the IMD values to determine if an IMD product from the two or more UL bands overlaps with the selected DL band;
- determine link margins for each of the two or more UL bands;
- and
- when an IMD overlap is determined, increase a modulation order of at least one UL band of the two or more UL bands that has a greatest link margin.
Dependencies are inferred from the claim text.