Method for implementing radar-communication integration of vehicle, related device, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsShaofeng Xu, Zhiwei Zhang, Botao Zhai, Xueming Peng
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Abstract
A method for implementing radar-communication integration of a vehicle, where the method includes obtaining, by a radar device of a first vehicle, a first communication message, modulating the first communication message into a first carrier signal, where an operating frequency of the first carrier signal is in an operating band of the radar device, sending a periodic radar signal, and sending the first carrier signal to a second vehicle within a time gap between sending of a radar signal in a current period and sending of a radar signal in a next period.
Claims20
A method for implementing radar-communication integration of a first vehicle implemented by a first radar device of the first vehicle, wherein the method comprises:
- obtaining a first communication message through a Controller Area Network (CAN) interface;
- modulating the first communication message onto a first carrier signal, wherein an operating frequency of the first carrier signal is in an operating band of the first radar device;
- sending a periodic radar signal using a transmit antenna of the first radar device, wherein the periodic radar signal is a chirp signal;
- sending a first radar signal at a first time in a current period;
- sending a second radar signal at a second time in a next period;
- and
- sending the first carrier signal to a second vehicle within a time gap between the first time and the second time.
A method for implementing radar-communication integration of a second vehicle implemented by a radar device of the second vehicle, wherein the method comprises:
- receiving, using a receive antenna of the radar device, a first carrier signal from a first vehicle within a time gap between sending of radar signals in adjacent periods, wherein the radar signals are chirp signals;
- and
- demodulating the first carrier signal to obtain a first communication message.
A first radar device of a first vehicle comprising:
- a Controller Area Network (CAN) interface configured to obtain a first communication message;
- a microcontroller unit (MCU) coupled to the CAN interface;
- a monolithic microwave integrated circuit (MMIC) coupled to the CAN interface and the MCU and configured to:
- modulate the first communication message into a first carrier signal, wherein an operating frequency of the first carrier signal is in an operating band of the first radar device;
- and
- generate a periodic radar signal, wherein the periodic radar signal is a chirp signal;
- a transmit antenna coupled to the MMIC and configured to:
- send a periodic radar signal;
- send a first radar signal at a first time in a current period;
- send a second radar signal at a second time in a next period;
- and
- send the first carrier signal to a second vehicle within a time gap between the first time and the second time;
- and
- a receive antenna coupled to the MMIC.
A radar device of a second vehicle comprising:
- a microcontroller unit (MCU);
- a transmit antenna;
- a receive antenna configured to receive a first carrier signal from a first vehicle within a first time gap between sending of first radar signals in first adjacent periods, wherein the first radar signals are chirp signals;
- and
- a monolithic microwave integrated circuit (MMIC) coupled to the MCU, the transmit antenna, and the receive antenna and configured to demodulate the first carrier signal to obtain a first communication message.
Dependencies are inferred from the claim text.