US 12,137,019 B2 · Signal generation method and apparatus

Abstract

This application provides a signal generation method and an apparatus. In the method, a first communication apparatus generates a first signal, and sends the first signal to a second communication apparatus, who receives the first signal, and then demodulates the first signal. A symbol included in the first signal is carried on K+2(M−1) subcarriers. Middle K subcarriers are valid subcarriers, start M−1 subcarriers and last M−1 subcarriers are redundant subcarriers, and a subcarrier spacing between adjacent subcarriers is related to a feature of a time domain pulse used to shape the subcarrier, wherein a width of each of some or all side lobes of a spectrum of the time domain pulse is equal to 1/M of a main lobe width of the time domain pulse, the subcarrier spacing is 1/M of the main lobe width. K is a positive integer, and M is a positive integer greater than 1.

Claims20

Dependent claims

A method, wherein the method comprises:

generating, by a first communication apparatus, a first signal, wherein a symbol comprised in the first signal is carried on K+2(M−1) subcarriers, and the K+2(M−1) subcarriers are shaped using a time domain pulse that satisfies following:
a width of each of some or all side lobes of a spectrum of the time domain pulse is equal to 1/M of a main lobe width, a subcarrier spacing between adjacent subcarriers is 1/M of the main lobe width, starting M−1 subcarriers and last M−1 subcarriers in the K+2(M−1) subcarriers are redundant subcarriers, K is a positive integer, and M is a positive integer greater than 1;
and
sending, by the first communication apparatus, the first signal.

1 more element

A communication apparatus, wherein the communication apparatus comprises a processor coupled to a non-transitory memory, the non-transitory memory storing a computer program or instructions, which when executed by the processor, cause the apparatus to:

generate, a first signal, wherein a symbol comprised in the first signal is carried on K+2(M−1) subcarriers, and the K+2(M−1) subcarriers are shaped using a time domain pulse that satisfies following:
a width of each of some or all side lobes of a spectrum of the time domain pulse is equal to 1/M of a main lobe width, a subcarrier spacing between adjacent subcarriers is 1/M of the main lobe width, starting M−1 subcarriers and last M−1 subcarriers in the K+2(M−1) subcarriers are redundant subcarriers, K is a positive integer, and M is a positive integer greater than 1;
and
send, the first signal.

1 more element

A non-transitory computer-readable storage medium, comprising a computer program or instructions, wherein when the computer program or the instructions run on a communication apparatus, the communication apparatus is caused to:

generate, a first signal, wherein a symbol comprised in the first signal is carried on K+2(M−1) subcarriers, and the K+2(M−1) subcarriers are shaped using a time domain pulse that satisfies following:
a width of each of some or all side lobes of a spectrum of the time domain pulse is equal to 1/M of a main lobe width, a subcarrier spacing between adjacent subcarriers is 1/M of the main lobe width, starting M−1 subcarriers and last M−1 subcarriers in the K+2(M−1) subcarriers are redundant subcarriers, K is a positive integer, and M is a positive integer greater than 1;
and
send, the first signal.

1 more element

Dependencies are inferred from the claim text.

Signal generation method and apparatus

Life of this patent

Signal generation method and apparatus

Life of this patent

Abstract

Claims20