Mask-compliant radio frequency power enhancement
AssigneeQUALCOMM Incorporated
InventorsSteve Andre BEAUDIN, Yuxin WANG, Puming FANG
Life of this patent
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform a crest factor reduction on a radio frequency (RF) waveform in multiple passes, wherein the multiple passes each include: a clipping operation to reduce a peak-to-average power ratio (PAPR) associated with the RF waveform according to a threshold; and a filtering operation to remove at least a portion of out-of-band emission from the clipped RF waveform. The UE may transmit the RF waveform over a wireless channel, wherein the RF waveform transmitted over the wireless channel satisfies a spectral mask. Numerous other aspects are described.
Claims20
A method of wireless communication performed by a user equipment (UE), comprising:
- performing a crest factor reduction on a radio frequency (RF) waveform in multiple passes, wherein the multiple passes each include:
- a clipping operation to reduce a peak-to-average power ratio (PAPR) associated with the RF waveform according to a threshold;
- and
- a filtering operation to remove at least a portion of out-of-band emission from the clipped RF waveform;
- and
- transmitting the RF waveform over a wireless channel, wherein the RF waveform transmitted over the wireless channel satisfies a spectral mask.
An apparatus for wireless communication at a user equipment (UE), comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to cause the UE to:
- perform a crest factor reduction on a radio frequency (RF) waveform in multiple passes, wherein the multiple passes each include:
- a clipping operation to reduce a peak-to-average power ratio (PAPR) associated with the RF waveform according to a threshold;
- and
- a filtering operation to remove at least a portion of out-of-band emission from the clipped RF waveform;
- and
- transmit the RF waveform over a wireless channel, wherein the RF waveform transmitted over the wireless channel satisfies a spectral mask.
An apparatus for wireless communication, comprising:
- means for performing a crest factor reduction on a radio frequency (RF) waveform in multiple passes, wherein the multiple passes each include:
- a clipping operation to reduce a peak-to-average power ratio (PAPR) associated with the RF waveform according to a threshold;
- and
- a filtering operation to remove at least a portion of out-of-band emission from the clipped RF waveform;
- and
- means for transmitting the RF waveform over a wireless channel, wherein the RF waveform transmitted over the wireless channel satisfies a spectral mask.
Dependencies are inferred from the claim text.