Uplink carrier aggregation architecture with power control circuit
AssigneeSkyworks Solutions, Inc.
InventorDavid Richard Pehlke
Life of this patent
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Abstract
Embodiments of the invention relate to an uplink carrier aggregation architecture including a first signal path, a second signal path, a third signal path and a power control circuit. Signals in a first frequency band are transmitted and received via the first signal path. Signals in a second frequency band are received via the second signal path and transmitted via the third signal path. The power control circuit is configured to measure a first power level associated with the first frequency band and a second power level associated with the second frequency band at the first signal path. The power control circuit is further configured to adjust the power of a signal to be transmitted in the first frequency band and/or a signal to be transmitted in the second frequency band.
Claims20
A system configured for uplink carrier aggregation comprising:
- a first signal path configured to transmit signals in a first frequency band;
- a second signal path configured to receive signals in a second frequency band;
- a third signal path configured to transmit signals in the second frequency band;
- and
- a power control circuit coupled to the first signal path, the power control circuit being configured to measure a forward power level in the first signal path associated with the first frequency band and a reflected power level in the first signal path associated with the second frequency band, and to adjust a power of a signal transmitted by the first signal path in the first frequency band and/or a power of a signal transmitted by the third signal path in the second frequency band.
A radio-frequency front-end module comprising:
- a packaging substrate configured to receive one or more components;
- a first signal path configured to transmit signals in a first frequency band;
- a second signal path configured to receive signals in a second frequency band;
- a third signal path configured to transmit signals in the second frequency band;
- and
- a power control circuit coupled to the first signal path, the power control circuit being configured to measure a power of a transmitted signal in the first signal path associated with the first frequency band and a power of a received signal in the first signal path associated with the second frequency band, and to adjust a power of of a signal transmitted by the first signal path in the first frequency band and/or a power of a signal transmitted by the third signal path in the second frequency band.
A wireless device comprising:
- a first transceiver and a second transceiver;
- a first antenna and a second antenna;
- and
- a radio-frequency front-end module including a first signal path configured to transmit signals in a first frequency band to the first antenna, a second signal path configured to receive signals in a second frequency band, a third signal path configured to transmit signals in the second frequency band to the second antenna, and a power control circuit coupled to the first signal path, the power control circuit being configured to measure a forward power in the first signal path associated with the first frequency band, measure a reflected power in the first signal path associated with the second frequency band, and to adjust a power of a signal transmitted by the first signal path in the first frequency band and/or a signal transmitted by the third signal path in the second frequency band.
A method of providing uplink carrier aggregation comprising:
- measuring, with a power control circuit, a forward power level associated with a first frequency band in a first signal path and a reflected power level associated with a second frequency band in the first signal path;
- determining, with the power control circuit, a calculated performance value based on the forward power level and the reflected power level;
- comparing, with the power control circuit, the calculated performance value with a target performance value;
- and
- adjusting, with the power control circuit, a power of a signal transmitted by the first signal path based on the comparing.
Dependencies are inferred from the claim text.