TRANSMITTING UNIT THAT REDUCES PAPR AND METHOD THEREFOR

摘要

A communication system (10) includes a transmitting unit (12) with a peak to average power (PAPR) reduction section (30) The PAPR reduction section (30) modifies the PAPR reduction it effects in a communication signal (14) in accordance with two different error vector magnitude (EVM) constraints for each channel type (102), where a channel type (102) is a distinct combination of a modulation order and a coding rate The EVM constraint followed for each subcarrier (25) in an OFDM or OFDMA application is selected in response to whether the subcarrier (25) conveys voice or non-voice data The PAPR reduction section (30) may include a scaling filter (72)