Detection method and device based on sensing-communication integration

Patent metadata

Field	Value
Publication number	US-12021582-B2
Application number	US-202017768334-A
Country	US
Kind code	B2
Filing date	Sep 30, 2020
Priority date	Oct 17, 2019
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

The embodiments of the present application provide a radar-sensing detection method and device based on radar-sensing communication integration. Said method comprises: when being applied to a sending end, determining a position of a receiving end, then sending a beam control signal to the receiving end through a preset beam control request channel, receiving a beam control response signal sent by the receiving end, and sending a first detection result signal to the receiving end in a preset reservation channel. The embodiments of the present application can expand the detection range of an autonomous vehicle.

First claim

What is claimed is:

1. A radar-sensing detection method based on radar-sensing communication integration, which is applied to a sending end, comprising:
determining a position of a receiving end based on a radar-sensing detection signal or a communication signal sent to the receiving end;
sending a beam control signal to the receiving end through a preset beam control request channel according to the position of the receiving end, wherein the beam control signal carries beam control information, and the beam control information comprises: frame control information, positioning request information, amount of data to be sent, beam occupation request information, channel occupation states, and spatial information check information; the frame control information is used to indicate demodulation information of the receiving end, and the positioning request information is used to broadcast vehicle information of the sending end itself, the beam occupation request information is used to request occupation of a spatial beam, the channel occupation states are used to inform the receiving end of an occupation state of a current channel, and the spatial information check information is configured for beam calibration;
receiving a beam control response signal sent by the receiving end, wherein the beam control response signal carries a sending delay and a sending channel frequency band, and the sending delay is used to indicate a sending time for a first detection result signal to be sent, the sending channel frequency band is used to indicate a sending channel frequency band for the first detection result signal, and the first detection result signal is a signal that is generated by the sending end after detecting surrounding environment and carries position information of all vehicles within a preset detection range of the sending end;
sending the first detection result signal to the receiving end in a preset reservation data channel according to the sending delay and the sending channel frequency band.

2. The method according to claim 1 , wherein the step of determining a position of a receiving end based on a radar-sensing detection signal or a communication signal sent to the receiving end comprises:
sending the radar-sensing detection signal when a distance between the sending end and the receiving end is less than the preset detection range of the sending end;
receiving a reflected signal of the radar-sensing detection signal;
determining the position of the receiving end according to the reflected signal;
or,
sending a position information acquisition request to a road-side unit RSU when a distance between the sending end and the receiving end is greater than the preset detection range of the sending end and less than a preset communication range of the sending end, wherein the position acquisition request is used to acquire the position information of the receiving end;
receiving a response message returned by the RSU, wherein the response message carries the position information of the receiving end.

3. The method according to claim 2 , wherein before the step of sending the first detection result signal to the receiving end in a preset reservation data channel according to the sending delay and the sending channel frequency band, the method further comprises:
pre-allocating sending angles for multiple beams of the first detection result signal to be sent according to a preset Butler beam allocation scheme, so that the beams are orthogonal to each other;
the step of sending the first detection result signal to the receiving end in a preset reservation data channel according to the sending delay and the sending channel frequency band comprises:
sending, according to the sending delay and the sending channel frequency band, the first detection result signal to the receiving end through the sending angles pre-allocated for the multiple beams of the first detection result signal in the preset reservation data channel.

4. The method according to claim 1 , wherein before the step of sending the first detection result signal to the receiving end in a preset reservation data channel according to the sending delay and the sending channel frequency band, the method further comprises:
pre-allocating sending angles for multiple beams of the first detection result signal to be sent according to a preset Butler beam allocation scheme, so that the beams are orthogonal to each other;
the step of sending the first detection result signal to the receiving end in a preset reservation data channel according to the sending delay and the sending channel frequency band comprises:
sending, according to the sending delay and the sending channel frequency band, the first detection result signal to the receiving end through the sending angles pre-allocated for the multiple beams of the first detection result signal in the preset reservation data channel.

5. An electronic device, which is applied in an autonomous vehicle, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus;
the memory is configured for storing a computer program;
the processor is configured for implementing the steps in the method of claim 1 when executing the computer program stored in the memory.

6. A non-transitory computer-readable storage medium,
wherein a computer program is stored in the medium, the steps in the method of claim 1 are implemented when the computer program is executed by a processor.

7. A radar-sensing detection method based on radar-sensing communication integration, which is applied to a receiving end, comprising:
receiving a beam control signal sent by a sending end, wherein the beam control signal carries beam control information, and the beam control information comprises: frame control information, positioning request information, amount of data to be sent, beam occupation request information, channel occupation states and spatial information check information; the frame control information can be used to indicate demodulation information of the receiving end, the positioning request information is used to broadcast vehicle information of the sending end itself, the beam occupation request information is used to request occupation of a spatial beam, the channel occupation states are used to inform the receiving end of an occupation state of a current channel, and the spatial information check information is used to indicate beam calibration;
sending a beam control response signal to the sending end through a preset beam control channel, wherein the beam control response signal carries a sending delay and a sending channel frequency band, and the sending delay is used to indicate a sending time for a first detection result signal to be sent, the sending channel frequency band is used to indicate a sending channel frequency band for the first detection result signal, and the first detection result signal is a signal that is generated by the sending end after detecting surrounding environment and carries position information of all vehicles within a preset detection range of the sending end;
receiving the first detection result signal sent by the sending end;
performing fusion processing on data in the first detection result signal and data in a second detection result signal to obtain fused data, wherein the second detection result signal carries position information of all vehicles within a preset detection range of the receiving end, data amount of the fused data is less than a sum of data amount of the data in the first detection result signal and data amount of the data in the second detection result signal.

8. The me

Assignees

• Univ Beijing Posts & Telecomm

Inventors

• Feng Zhiyong
• Wei Zhiqing
• Ma Hao
• Zhang Ping
• Ning Fan
• Zhang Qixun

Classifications

• G01S13/765

  with exchange of information between interrogator and responder · CPC title

• G01S13/872

  Combinations of primary radar and secondary radar · CPC title

• G01S7/006

  using shared front-end circuitry, e.g. antennas (G01S13/765, G01S13/825 take precedence) · CPC title

• G01S2013/9316

  combined with communication equipment with other vehicles or with base stations · CPC title

• G01S13/931

  of land vehicles · CPC title