US 2021/0083918 A1 · SIGNAL PHASE ROTATION

Abstract

This disclosure provides methods, devices, and systems for a wireless communication device to perform signal phase rotation. In some implementations, the wireless communication device may determine a number of phase rotation parameters to be applied to a number of tones of a transmission signal. In some aspects, each of the phase rotation parameters indicates a phase rotation to be applied to each of the tones according to a carrier index range for each of the tones and a bandwidth mode for the transmission signal. In some implementations, the wireless communication device may apply the phase rotation parameters to respective ones of the tones according to the specified phase rotations and the carrier index ranges, and transmit the transmission signal from the wireless communication device according to the applied phase rotation parameters.

Claims20

Dependent claims

A method for wireless communication performed by a wireless communication device, comprising:

determining a plurality of pairs of parameters associated with a bandwidth mode for transmission of a signal, each of the plurality of pairs of parameters being associated with a respective bandwidth segment of a plurality of bandwidth segments based on the bandwidth mode, a first parameter of each of the plurality of pairs of parameters representing a first phase rotation to be applied to a first set of subcarriers within the respective bandwidth segment, a second parameter of each of the plurality of pairs of parameters representing a second phase rotation to be applied to a second set of subcarriers within the respective bandwidth segment, the second phase rotation being flipped relative to the first phase rotation;
applying the determined phase rotations to the respective sets of subcarriers;
and
transmitting the signal via the plurality of bandwidth segments based on the application of the determined phase rotations to the respective sets of subcarriers.

1 more element

A wireless communication device comprising:

at least one modem;
at least one processor communicatively coupled with the at least one modem;
and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor in conjunction with the at least one modem, is configured to:
determine a plurality of pairs of parameters associated with a bandwidth mode for transmission of a signal, each of the plurality of pairs of parameters being associated with a respective bandwidth segment of a plurality of bandwidth segments based on the bandwidth mode, a first parameter of each of the plurality of pairs of parameters representing a first phase rotation to be applied to a first set of subcarriers within the respective bandwidth segment, a second parameter of each of the plurality of pairs of parameters representing a second phase rotation to be applied to a second set of subcarriers within the respective bandwidth segment, the second phase rotation being flipped relative to the first phase rotation;
apply the determined phase rotations to the respective sets of subcarriers;
and
transmit the signal via the plurality of bandwidth segments based on the application of the determined phase rotations to the respective sets of subcarriers.

5 more elements

Dependencies are inferred from the claim text.

Signal phase rotation

Life of this patent

Signal phase rotation

Life of this patent

Abstract

Claims20