Abstract: This application relates to the field of wireless communications and self-driving/intelligent driving/autonomous driving vehicles, and in particular, to the field of collaborative radars. A first apparatus receives first information from a second apparatus. The first apparatus determines, based on the first information, the priorities of a plurality of time-frequency resources included in a first time-domain range. The first apparatus further selects a first time-frequency resource among the plurality of time-frequency resources. The priority of the first time-frequency resource is the highest among the priorities of the plurality of time-frequency resources. A time-frequency resource with a comparatively high priority is selected to send a radar signal, to reduce a probability of a resource collision, and reduce and/or avoid interference between radars, especially collaborative radars.

Abstract: A radar signal processing method and an apparatus, and a storage medium that are applied to a first radar. The method includes: determining that a polarization direction of the first radar is a first angle, where the first radar is located at a first vehicle; and transmitting a radar signal based on the polarization direction of the first radar, where a detection direction of the first radar is opposite to a detection direction of a second radar located at the first vehicle, and a polarization direction of the second radar is a second angle; and the first angle and the second angle are orthogonal.

Abstract: This application provides a radar signal processing method and apparatus, which are applicable to the waveform design of a millimeter-wave radar. The radar signal processing method is applicable to an apparatus, for example, a millimeter-wave radar or a chip system inside the millimeter-wave radar, and the method includes: transmitting a first radar signal on a first frequency band; transmitting a second radar signal on a second frequency band; receiving a first reflected signal and a second reflected signal, where the first reflected signal is an electromagnetic wave reflected by a target object in response to the first radar signal, and the second reflected signal is an electromagnetic wave reflected by the target object in response to the second radar signal; and obtaining at least one of range information, velocity information, and angle information of the target object.

Abstract: A method for detecting a target object implemented by a detection apparatus, where the detection apparatus transmits a radio signal on a frequency band on which mutual interference can be avoided to avoid or reduce interference caused by a transmit signal or a related signal of any detection apparatus when another detection apparatus determines a target. The detection apparatus divides a frequency band or a frequency domain raster based on a determined threshold to allow partial overlapping between frequency bands or rasters.

Abstract: A detection method includes determining a first frequency point of N frequency points, transmitting a radio signal in a first frequency band in N frequency bands. One of the N frequency bands partially overlaps at least one frequency band in other N?1 frequency bands, and an absolute value of a difference between lowest frequencies of any two frequency bands of the N frequency bands is not less than a first threshold (F), or the N frequency bands have at least one second frequency band that partially overlaps the first frequency band, and an absolute value of a difference between a lowest frequency of each second frequency band and a lowest frequency of the first frequency band is not less than F.

Abstract: This application provides an information transmission method and apparatus, relates to interference processing of a cooperative radar, and is applicable to internet of vehicles scenarios, such as a vehicle-to-everything V2X scenario, a long term evolution-vehicle LTE-V scenario, and a vehicle-to-vehicle V2V scenario. Therefore, information related to a transmit power can be transmitted through an interface of a radar detection apparatus, and a capability of an automated driving system or an advanced driver assistant system ADAS is improved, to adapt to a variable driving environment. The information transmission method includes: A first detection apparatus receives indication information, where the indication information is used to indicate the first detection apparatus to determine a first transmit power used for transmitting a radar signal; and the first detection apparatus determines the first transmit power based on the indication information.

Abstract: An information reporting method and apparatus for of automatic or intelligent driving, the method including receiving, by a detection apparatus, a first signal, determining, by the detection apparatus, based on the first signal, an interfered range in a detection range of the detection apparatus, and sending, by the detection apparatus, interference information to a fusion apparatus, where the interference information comprises indication information of the interfered range.

Abstract: This application relates to the field of wireless communications and self-driving/intelligent driving, and in particular, to the field of collaborative radars. In a solution of this application, a first apparatus receives first information from a second apparatus; the first apparatus determines, based on the first information, priorities of a plurality of time-frequency resources included in a first time-domain range; and the first apparatus determines a first time-frequency resource in the plurality of time-frequency resources, where a priority of the first time-frequency resource is not lower than a priority of a time-frequency resource other than the first time-frequency resource in the plurality of time-frequency resources. A time-frequency resource with a comparatively high priority is selected to send a radar signal, to reduce a probability of a resource collision, and reduce or avoid interference between radars, especially collaborative radars.

Abstract: A radar signal sending method and a device provides for the sending of the radar signal to cooperative radars. A first time domain range in L time domain ranges is determined. A first radar signal is sent in the first time domain range. Any one of the L time domain ranges partially overlaps at least one of the other (L?1) time domain ranges, and an absolute value of a difference between time domain start locations of any two of the L time domain ranges is greater than or equal to a first threshold and less than or equal to a second threshold.

Abstract: A method includes determining a first time domain range, where the first time domain range is one of L time domain ranges, and transmitting a first radio signal in the first time domain range, where any one of the L time domain ranges partially overlaps at least one of the other L?1 time domain ranges, and an absolute value of a difference between time domain start positions of any two of the L time domain ranges is not less than a first threshold F, and is less than a time domain length of the first time domain range.

Abstract: A method related to processing interference between cooperative radars, where a radar obtains configuration information used to indicate a ratio of a quantity of first data update periods to a quantity of second data update periods in a sending period. The first data update period is used to send a first radio signal, and the second data update period is used to send a second radio signal. Waveform configurations of the first radio signal and the second radio signal are different, to effectively reduce mutual interference between the first radio signal and the second radio signal.

Abstract: A method for detecting a target object implemented by a detection apparatus, where the detection apparatus transmits a radio signal on a frequency band on which mutual interference can be avoided to avoid or reduce interference caused by a transmit signal or a related signal of any detection apparatus when another detection apparatus determines a target. The detection apparatus divides a frequency band or a frequency domain raster based on a determined threshold to allow partial overlapping between frequency bands or rasters.

Abstract: A detection method includes determining a first frequency point of N frequency points, transmitting a radio signal in a first frequency band in N frequency bands. One of the N frequency bands partially overlaps at least one frequency band in other N?1 frequency bands, and an absolute value of a difference between lowest frequencies of any two frequency bands of the N frequency bands is not less than a first threshold (F), or the N frequency bands have at least one second frequency band that partially overlaps the first frequency band, and an absolute value of a difference between a lowest frequency of each second frequency band and a lowest frequency of the first frequency band is not less than F.

Abstract: This application provides a radar signal processing method and apparatus, which are applicable to the waveform design of a millimeter-wave radar. The radar signal processing method is applicable to an apparatus, for example, a millimeter-wave radar or a chip system inside the millimeter-wave radar, and the method includes: transmitting a first radar signal on a first frequency band; transmitting a second radar signal on a second frequency band; receiving a first reflected signal and a second reflected signal, where the first reflected signal is an electromagnetic wave reflected by a target object in response to the first radar signal, and the second reflected signal is an electromagnetic wave reflected by the target object in response to the second radar signal; and obtaining at least one of range information, velocity information, and angle information of the target object.

Abstract: A radar signal processing method and an apparatus, and a storage medium that are applied to a first radar. The method includes: determining that a polarization direction of the first radar is a first angle, where the first radar is located at a first vehicle; and transmitting a radar signal based on the polarization direction of the first radar, where a detection direction of the first radar is opposite to a detection direction of a second radar located at the first vehicle, and a polarization direction of the second radar is a second angle; and the first angle and the second angle are orthogonal.