Power limited case signaling
First Claim
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1. A method for a user equipment to report a transmission power capability to an e Node B, wherein the user equipment operates in carrier aggregation, the method comprising:
- determining, by the user equipment, that the transmission power capability of at least one power amplifier of the user equipment reaches at least one defined threshold, andwhen a criterion that transmission power is (MPR (Maximum Power Reduction)+A-MPR (Additional Maximum Power Reduction)) dB below a total maximum transmission power capabilities including power required for all component carriers is satisfied, triggering a generation of a power headroom report based on the determining step,wherein if the power headroom report is triggered according to the criterion, the user equipment does not perform power scaling.
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Abstract
The disclosure relates to a method for a user equipment to report a transmission power capability to an e Node B. The user equipment operates in carrier aggregation. The method comprises determining, by the user equipment, that the transmission power capability of at least one power amplifier of the user equipment reaches at least one defined threshold, and triggering a generation of a power headroom report based on the determining step. The disclosure also relates to the corresponding user equipment and e Node B.
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Citations
10 Claims
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1. A method for a user equipment to report a transmission power capability to an e Node B, wherein the user equipment operates in carrier aggregation, the method comprising:
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determining, by the user equipment, that the transmission power capability of at least one power amplifier of the user equipment reaches at least one defined threshold, and when a criterion that transmission power is (MPR (Maximum Power Reduction)+A-MPR (Additional Maximum Power Reduction)) dB below a total maximum transmission power capabilities including power required for all component carriers is satisfied, triggering a generation of a power headroom report based on the determining step, wherein if the power headroom report is triggered according to the criterion, the user equipment does not perform power scaling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A user equipment configured for carrier aggregation with an e Node B, the user equipment comprising:
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a processor configured to; determine that the transmission power capability of at least one power amplifier of the user equipment reaches at least one defined threshold, and when a criterion that transmission power is (MPR (Maximum Power Reduction)+A-MPR (Additional Maximum Power Reduction)) dB below a total maximum transmission power capabilities including power required for all component carriers is satisfied, trigger a generation of a power headroom report based on the determination, wherein if the power headroom report is triggered according to the criterion, the user equipment does not perform power scaling; and a transmitter configured to send the power headroom report to the e Node B.
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Specification