Radar transceiver
A method for operating a radar system ( 210 ) in a vehicle ( 201 ), the method including establishing a wireless communication link ( 245 ) to a radio base station ( 250 ) in a wireless communication network ( 260 ), requesting a time-frequency resource ( 420, 430 ) for communicating with a network node ( 270 ) via the radio base station ( 250 ), receiving a transmission grant from the radio base station ( 250 ) for communicating with the network node ( 270 ) using the time-frequency resource ( 420, 430 ), transmitting a communications signal ( 245 ) in the time-frequency resource, and transmitting a radar signal ( 235 ) in the time-frequency resource.
1 . A method for operating a radar system in a vehicle, the method comprising the steps of:
establishing a wireless communication link to a radio base station comprised in a wireless communication network,
requesting at least one time-frequency resource for communicating with a network node via the radio base station,
receiving at least one transmission grant from the radio base station for communicating with the network node using the time-frequency resource,
transmitting a communications signal in the time-frequency resource,
transmitting a radar signal in the time-frequency resource;
obtaining a request from a target tracking function comprising a desired bandwidth for tracking or classifying an object using the radar system in the vehicle, and requesting the time-frequency resource based on the desired bandwidth.
2 . The method according to claim 1 , further comprising transmitting the radar signal and the communications signal as the same radio signal.
3 . The method according to claim 1 , further comprising transmitting the radar signal and the communications signal as different radio signals in separate radio beams and in different directions but during the same time period and in a same frequency band.
4 . The method according to claim 3 , wherein the different radio signals transmitted in separate of the radio beams and in the different directions comprise at least one synchronized pilot signal.
5 . The method according to claim 1 , further comprising obtaining a request from a target tracking function comprising a desired transmission time duration, and requesting the time-frequency resource based the desired transmission time duration.
6 . The method according to claim 1 , further comprising obtaining a scheduling priority value from a target tracking function, wherein the requesting comprises requesting the time-frequency resource with the priority value.
7 . The method according to claim 1 , wherein the requesting comprises requesting the time-frequency resource associated with a delay constraint.
8 . The method according to claim 1 , wherein the requesting comprises requesting a time-frequency resource comprised in one of a Physical uplink shared channel, a PUSCH communication system, a fifth generation communication system, a 5G communication system, or a cellular communications system.
9 . The method according to claim 1 , further comprising associating a reported target detection with the transmission grant data.
10 . The method according to claim 1 , further comprising requesting a plurality of the time-frequency resources for communicating with the network node via the radio base station, and transmitting a corresponding plurality of radar signals in the plurality of the time-frequency resources.
11 . A radar system for a vehicle, comprising
a communications transceiver comprising a transmitter and a receiver arranged to establish a wireless communication link to a radio base station comprised in a wireless communication network, to request a time-frequency resource for communicating with a network node via the radio base station, and to receive a transmission grant from the radio base station for communicating with the network node using the time-frequency resource,
wherein the communications transceiver is arranged to transmit a communications signal in the time-frequency resource,
wherein the radar system further comprises a radar transceiver comprising a transmitter and a receiver arranged to transmit a radar signal in the time-frequency resource, and
wherein the radar system further comprises a target tracking function, and the radar system is arranged to obtain a request from the target tracking function comprising a desired bandwidth for tracking or classifying an object using the radar system in the vehicle, and requesting the time-frequency resource based the desired bandwidth.
12 . The radar system according to claim 11 , wherein a shared transmitter constitutes both the communications transmitter and the radar transmitter.
13 . The radar system according to claim 11 , wherein the communications receiver and the radar receiver are separate receivers, and wherein a synchronization interface connects the radar receiver to the communications transceiver.
14 . A vehicle comprising the radar system according to claim 11 .