Signal sending method and related apparatus

Patent metadata

Field	Value
Publication number	US-12287422-B2
Application number	US-202217896683-A
Country	US
Kind code	B2
Filing date	Aug 26, 2022
Priority date	Feb 29, 2020
Publication date	Apr 29, 2025
Grant date	Apr 29, 2025

Abstract

A signal sending method and a detection apparatus are provided. One method includes: sending, by a detection apparatus, a first signal for target detection, and sending, by the detection apparatus, a second signal indicating information about a resource occupied by the first signal.

First claim

What is claimed is:

1. A signal transmission method comprising:
sending, by a detection apparatus, a first signal for target detection; and
sending, by the detection apparatus, a second signal indicating information about a resource occupied by the first signal, wherein the resource occupied by the first signal is K consecutive sub-bands in N non-overlapping sub-bands, the N non-overlapping sub-bands belong to a first frequency band, a frequency domain range of the first frequency band is predetermined, and N and K are positive integers.

2. The method according to claim 1 , wherein the second signal indicates at least one of the K consecutive sub-bands.

3. The method according to claim 2 , wherein the second signal is sent on at least one of the K consecutive sub-bands.

4. The method according to claim 3 , wherein the second signal is sent on each of the K consecutive sub-bands.

5. The method according to claim 3 , wherein a starting time of sending the second signal is determined by using a sub-band on which the second signal is sent.

6. The method according to claim 1 , wherein the second signal indicates, by using a time domain resource or a frequency domain resource for transmitting the second signal, the information about the resource occupied by the first signal.

7. The method according to claim 6 , wherein the second signal indicates at least one of information about a time domain resource or a frequency domain resource occupied by the first signal, or information about a time domain resource or a frequency domain resource not occupied by the first signal.

8. The method according to claim 4 , wherein a bandwidth of the second signal is less than or equal to a bandwidth of a sub-band on which the second signal is sent.

9. The method according to claim 1 , wherein a waveform type of the first signal and a waveform type of the second signal are the same.

10. The method according to claim 6 , wherein a waveform type of the second signal comprises a chirp pulse train, and the indication information comprises a phase of at least one pulse of the chirp pulse train.

11. The method according to claim 6 , wherein the indication information comprises at least one of the following: start moment information, sending periodicity information, and frequency resource information of the second signal.

12. The method according to claim 1 , wherein values of the first M sampling points of the second signal are the same as values of the last M sampling points of the second signal, wherein M is a positive integer.

13. A signal transmission method comprising:
receiving, by a second detection apparatus, a second signal sent by a first detection apparatus, wherein the second signal indicates information about a resource occupied by a first signal sent by the first detection apparatus, the resource occupied by the first signal is K consecutive sub-bands in N non-overlapping sub-bands, the N non-overlapping sub-bands belong to a first frequency band, a frequency domain range of the first frequency band is predetermined, and N and K are positive integers; and
sending, by the second detection apparatus, a third signal for target detection, wherein information about a resource occupied by the third signal is determined based on the second signal.

14. The method according to claim 13 , wherein the method comprises:
determining, by the second detection apparatus based on information about a time domain resource or a frequency domain resource of at least one second signal, the information about the resource occupied by the third signal.

15. The method according to claim 14 , wherein the second signal indicates at least one of: information about a time domain resource or a frequency domain resource occupied by the first signal, and information about a time domain resource or a frequency domain resource not occupied by the first signal.

16. An apparatus, comprising:
a memory storing instructions; and
at least one processor coupled to the memory for executing the instructions to cause the apparatus to:
send a first signal for target detection; and
send a second signal indicating information about a resource occupied by the first signal, wherein the resource occupied by the first signal is K consecutive sub-bands in N non-overlapping sub-bands, the N non-overlapping sub-bands belong to a first frequency band, a frequency domain range of the first frequency band is predetermined, and N and K are positive integers.

17. The apparatus according to claim 16 , wherein the second signal indicates at least one of the K consecutive sub-bands.

18. The apparatus according to claim 17 , wherein the second signal is sent on at least one of the K consecutive sub-bands.

19. The apparatus according to claim 18 , wherein the second signal is sent on each of the K consecutive sub-bands.

20. The apparatus according to claim 18 , wherein a starting time of sending the second signal is determined by using a sub-band on which the second signal is sent.

21. The apparatus according to claim 16 , wherein the second signal indicates, by using a time domain resource or a frequency domain resource for transmitting the second signal, the information about the resource occupied by the first signal.

Assignees

• Huawei Tech Co Ltd
• Shenzhen Yinwang Intelligent Technology Co Ltd

Inventors

• Gao Lei
• Ma Sha
• Song sida

Classifications

• G01S13/931 Primary

  of land vehicles · CPC title

• G01S7/023

  Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques (auxiliary means for detecting or identifying radar signals or the like G01S7/021; means for anti-jamming G01S7/36) · CPC title

• G01S7/0235

  Avoidance by time multiplex · CPC title

• G01S7/0232

  Avoidance by frequency multiplex · CPC title

• G01S7/003 Primary

  Transmission of data between radar, sonar or lidar systems and remote stations · CPC title