System and method for nonlinearity estimation with reference signals
AssigneeQUALCOMM Incorporated
InventorsAriel Yaakov Sagi, Igor Gutman
Life of this patent
Estimating the term…
Abstract
A transmitter may be configured to generate a reference signal having a non-constant envelope for nonlinearity estimation by a receiver. The transmitter may transmit the reference signal. A receiver may be configured to receive, from the transmitter, the reference signal having the non-constant envelope. The receiver may estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope. The receiver may transmit feedback based on the at least one nonlinearity characteristic and/or perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
Claims44
A method of wireless communication by a transmitter, the method comprising:
- generating, by the transmitter, a reference signal having a non-constant envelope for nonlinearity estimation by a receiver, wherein the generating the reference signal comprises modulating the reference signal to have a first dynamic range, the first dynamic range being higher than a second dynamic range of another signal having a constant envelope;
- and
- transmitting, by the transmitter, the reference signal.
A method of wireless communication by a receiver, the method comprising:
- receiving a reference signal having a non-constant envelope, the reference signal having a first dynamic range that is higher than a second dynamic range of another signal having a constant envelope;
- estimating at least one nonlinearity characteristic based on the reference signal having the non-constant envelope;
- and
- at least one of:
- transmitting feedback based on the at least one nonlinearity characteristic, or
- performing at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
An apparatus for wireless communication, the apparatus comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- generate a reference signal having a non-constant envelope for nonlinearity estimation by a receiver, wherein the generation of the reference signal comprises modulation of the reference signal to have a first dynamic range, the first dynamic range being higher than a second dynamic range of another signal having a constant envelope;
- and
- transmit the reference signal.
A apparatus of wireless communication by a receiver, the apparatus comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive reference signal having a non-constant envelope, the reference signal having a first dynamic range that is higher than a second dynamic range of another signal having a constant envelope;
- estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope;
- and
- at least one of:
- transmit feedback based on the at least one nonlinearity characteristic, or
- perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
An apparatus for wireless communication, the apparatus comprising:
- means for generating a reference signal having a non-constant envelope for nonlinearity estimation by a receiver, wherein the means for generating is configured to modulate the reference signal to have a first dynamic range, the first dynamic range being higher than a second dynamic range of another signal having a constant envelope;
- and
- means for transmitting the reference signal.
A apparatus of wireless communication by a receiver, the apparatus comprising:
- means for receiving a reference signal having a non-constant envelope, the reference signal having a first dynamic range that is higher than a second dynamic range of another signal having a constant envelope;
- means for estimating at least one nonlinearity characteristic based on the reference signal having the non-constant envelope;
- and
- at least one of:
- means for transmitting feedback based on the at least one nonlinearity characteristic, or
- means for performing at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
A non-transitory, computer-readable medium storing computer-executable code for wireless communication by a transmitter, comprising code to:
- generate, by the transmitter, a reference signal having a non-constant envelope for nonlinearity estimation by a receiver, wherein the generation of the reference signal comprises modulation of the reference signal to have a first dynamic range, the first dynamic range being higher than a second dynamic range of another signal having a constant envelope;
- and
- transmit, by the transmitter, the reference signal.
A non-transitory, computer-readable medium storing computer-executable code for wireless communication by a receiver, comprising code to:
- receive a reference signal having a non-constant envelope, the reference signal having a first dynamic range that is higher than a second dynamic range of another signal having a constant envelope;
- estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope;
- and
- at least one of:
- transmit feedback based on the at least one nonlinearity characteristic, or
- perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
Dependencies are inferred from the claim text.