Apparatus, and associated method, for communicating a data block in a multi carrier modulation communication scheme

A multi-carrier modulation, MCM, system for communicating data between at least two wireless communication stations with minimum peak to average power ratio, PAPR, comprising:

• a multiplier that multiplies together a scrambling sequence of a plurality of scrambling sequences and a data block containing informational content to produce a product sequence;
• a transform operator that accepts the product sequence without further modification and generates a transformed-value block;
• a PAPR calculator that accepts the transformed-value block and calculates a PAPR value;
• a comparator that compares the PAPR value to a predetermined threshold value and permits the transformed-value block to be prepared for transmission without further PAPR calculation when the PAPR value is smaller than the predetermined threshold value;
• a transmitter that wirelessly transmits the transformed-value block;
• and
• a remote receiver configured to receive the wireless transmission transmitted by the transmitter and recover informational content of the data block.

A method of for determining a peak to average power ratio, PAPR, and enabling communication of data in a multi-carrier modulation, MCM, system that includes at least a transmitting communication station and a receiving communication station, comprising the operations of:

• multiplying together a scrambling sequence of a plurality of scrambling sequences and a data block at the transmitting communication station to produce a product sequence;
• transforming the product sequence to generate a transformed-value block at the transmitting communication station;
• calculating a PAPR value from the transformed-value block at the transmitting communication station;
• comparing the PAPR value to a predetermined threshold value;
• transmitting the transformed-value block without further PAPR calculation at the transmitting communication station when the PAPR value is smaller than the predetermined threshold value;
• and
• receiving the transformed-value block and recovering informational content contained within the data block at the receiving station.