US 2025/0358035 A1 · SIGNAL TRANSMISSION METHOD AND RELATED APPARATUS

Abstract

A signal transmission method and a related apparatus, to resolve a problem of a large ranging error for an OFDM signal generated based on a ZC sequence. The method includes: a first device generates a first signal based on the ZC sequence, where a root value of the ZC sequence is an element in a first set, a value of a multiplicative inverse of any element in the first set modulo N is an integer greater than n and less than N-n, N is an integer greater than n, N is a length of the ZC sequence, and n is an integer greater than 0 and less than N/2. The first device sends the first signal. Correspondingly, the first device or a second device receives an echo signal of the first signal.

Claims20

Dependent claims

A method, applied to a first device, the method comprising:

generating a first signal based on a Zadoff-Chu (ZC) sequence, wherein a root value of the ZC sequence is an element in a first set, a multiplicative inverse of any element in the first set modulo N is an integer greater than n and less than N-n, N is an integer greater than n, N is a length of the ZC sequence, and n is an integer greater than 0 and less than N/2;
and
sending the first signal.

A method, applied to a second device, the method comprising:

receiving an echo signal of a first signal, wherein the first signal is generated based on a Zadoff-Chu (ZC) sequence, a root value of the ZC sequence is an element in a first set, a multiplicative inverse of any element in the first set modulo N is an integer greater than n and less than N-n, N is an integer greater than n, N is a length of the ZC sequence, and n is an integer greater than 0 and less than N/2.

A signal transmission apparatus, the apparatus comprising at least one processor, and the at least one processor is configured to run a computer program or instructions, to enable the apparatus to:

generate a first signal based on a Zadoff-Chu (ZC) sequence, wherein a root value of the ZC sequence is an element in a first set, a multiplicative inverse of any element in the first set modulo N is an integer greater than n and less than N-n, N is an integer greater than n, N is a length of the ZC sequence, and n is an integer greater than 0 and less than N/2;
and
send the first signal.

Dependencies are inferred from the claim text.

Facts

Application

19/286,719Filed 31 Jul 2025

Priority

CN 202310145236.310 Feb 2023

Published

20 Nov 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

H04J 13/0062
CAZAC [constant-amplitude and zero auto-correlation]: zadoff-Chu
H04L 27/26
Modulated-carrier systems: systems using multi-frequency codes
G01S 7/006
Transmission of data between radar, sonar or lidar systems and remote stations: using shared front-end circuitry, e.g. antennas
G01S 7/068
Cathode-ray tube displays or other two dimensional or three-dimensional displays: with data-rate converters preceding the display, e.g. flicker…

Signal transmission method and related apparatus

Life of this patent

Signal transmission method and related apparatus

Life of this patent

Abstract

Claims20