Tone reservation with PAPR reduction signal on only real or imaginary part of each reserved tone
AssigneeSony Group Corporation
InventorsErik Bengtsson, Fredrik Rusek
Life of this patent
Estimating the term…
Abstract
A transmitter node is disclosed for reducing Peak to Average Power Ratio, PAPR. The transmitter node comprises circuitry configured to cause the transmitter node to transmit, to a receiver node, data in OFDM symbols. For one OFDM symbol, a real part of a first data symbol transmitted on a first subcarrier and an imaginary part of a second data symbol transmitted on a second subcarrier, different from the first subcarrier, are reserved for transmission of a PAPR reducing signal. Resource locations of the first data symbol and of the second data symbol are determined based on preconfigured reservation rules.
Claims20
A transmitter node for reducing Peak to Average Power Ratio (PAPR) the transmitter node comprising circuitry configured to cause the transmitter node to:
- transmit, to a receiver node, data in OFDM symbols, wherein for one OFDM symbol including a plurality of data symbols over a plurality of subcarriers, a real part of a first data symbol transmitted on a first subcarrier and an imaginary part of a second data symbol transmitted on a second subcarrier, different from the first subcarrier, are reserved for transmission of a real part and an imaginary part of a PAPR-reducing data symbol, respectively, of a PAPR reducing signal, and
- wherein resource locations of the first data symbol and of the second data symbol are determined based on preconfigured reservation rules.
A receiver node for enabling Peak to Average Power Ratio (PAPR) reduction, the receiver node circuitry configured to cause the receiver node to:
- receive, from a transmitter node, data in OFDM symbols, wherein for one OFDM symbol including a plurality of data symbols over a plurality of subcarriers, a real part of a first data symbol received on a first subcarrier and an imaginary part of a second data symbol received on a second subcarrier, different from the first subcarrier, are reserved for a real part and an imaginary part of a PAPR-reducing data symbol, respectively, of a PAPR reducing signal,
- wherein resource locations of the first data symbol and of the second data symbol are determined based on preconfigured reservation rules.
A method, performed by a transmitter node, for reducing peak-to-average-power-ratio (PAPR) the method comprising:
- transmitting, to a receiver node, data in OFDM symbols, wherein for one OFDM symbol including a plurality of data symbols over a plurality of subcarriers, a real part of a first data symbol transmitted on a first subcarrier and an imaginary part of a second data symbol transmitted on a second subcarrier, different from the first subcarrier, are reserved for a real part and an imaginary part of a PAPR-reducing data symbol, respectively, of a PAPR reducing signal, and
- wherein resource locations of the first data symbol and of the second data symbol are determined based on preconfigured reservation rules.
Dependencies are inferred from the claim text.