Peak-to-average power ratio reduction with pseudo-random in-band tone reservation

A method for wireless communication at a base station, comprising:

• transmitting a control signal indicating that a user equipment (UE) is to utilize one or more peak reduction tones for an uplink transmission period;
• identifying, from a set of allocated resources, first subcarriers for receiving a data signal;
• identifying the one or more peak reduction tones for UE transmission of a peak-cancellation signal based at least in part on a Costas array;
• and
• receiving, during the uplink transmission period, the data signal on the first subcarriers of the set of allocated resources with the peak-cancellation signal on the one or more peak reduction tones of the set of allocated resources.

An apparatus for wireless communication, comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive a control signal indicating that a user equipment (UE) associated with the apparatus is to utilize one or more peak reduction tones for an uplink transmission period;
• identify, from a set of allocated resources, first subcarriers for transmitting a data signal;
• identify the one or more peak reduction tones for transmitting a peak-cancellation signal based at least in part on a Costas array;
• and
• transmit, during the uplink transmission period, the data signal on the first subcarriers of the set of allocated resources with the peak-cancellation signal on the one or more peak reduction tones of the set of allocated resources.

An apparatus for wireless communication, comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit a control signal indicating that a user equipment (UE) is to utilize one or more peak reduction tones for an uplink transmission period;
• identify, from a set of allocated resources, first subcarriers for receiving a data signal;
• identify the one or more peak reduction tones for UE transmission of a peak-cancellation signal based at least in part on a Costas array;
• and
• receive, during the uplink transmission period, the data signal on the first subcarriers of the set of allocated resources with the peak-cancellation signal on the one or more peak reduction tones of the set of allocated resources.