# US 12,111,410 B2 · Techniques for radar data compression > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,111,410 B2 - Document ID: US12111410B2 - Status: Granted - Kind: B2 - Application number: 17/135,545 - Filed: 2020-12-28 - Published: 2021-07-08 - Granted: 2024-10-08 - Earliest claimed: 2020-01-03 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Makesh Pravin John Wilson; Amin Ansari; Sundar Subramanian; Volodimir Slobodyanyuk; Radhika Dilip Gowaikar - Web page: https://patentgrep.com/patent/US12111410B2 ## CPC - G01S 7/003: {Transmission of data between radar, sonar or lidar systems and remote stations} - G01S 7/03: Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver - G01S 7/2922: {by using a controlled threshold} - G01S 7/354: {Extracting wanted echo-signals (Doppler systems G01S13/50)} - G06N 3/0442: characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU] - G06N 3/0455: Auto-encoder networks; Encoder-decoder networks - G06N 3/0464: Convolutional networks [CNN, ConvNet] - G06N 3/0495: Quantised networks; Sparse networks; Compressed networks - G06N 3/08: Learning methods - G07C 5/008: {communicating information to a remotely located station (transmission systems for measured values G08C)} - G06N 3/044: Recurrent networks, e.g. Hopfield networks - G06N 3/045: Combinations of networks - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE ## Abstract According to some aspects of the disclosure, techniques for compression techniques for the radar data that can be used in real-time applications for automated or self-driving vehicles. One or more compression techniques can be selected and/or configured based on information regarding operational conditions provided by a central (vehicle) computer. Operational conditions can include environmental data (e.g., weather, traffic), processing capabilities, mode of operation, and more. Compression techniques can facilitate transport of compressed radar data from a radar sensor to the central computer for processing of the radar data for object detection, identification, positioning, etc. ## Claims ### Claim 1 A method of compressing radar data in a radar system of a vehicle, the method comprising: receiving, at the radar system, operational condition information from a mobile computer system regarding one or more operational conditions regarding the vehicle, wherein the operational condition information is obtained by the mobile computer system using at least one of data from one or more non-radar sensors of the vehicle or data received via communication with another device; determining, from a plurality of compression modes of operation, a compression mode of operation for compressing the radar data at a particular compression level based at least in part on a likelihood of collision of the vehicle with at least one object indicated by the operational condition information, wherein the plurality of compression modes of operation are associated with at least a first compression technique having a first compression level and a second compression technique having a second compression level, the second compression technique being different from the first compression technique; determining one or more parameters for radar data compression based at least in part on the compression mode; performing a radar scan with the radar system to obtain the radar data; compressing the radar data using a compression technique according to the compression mode, wherein the compression technique is performed in accordance with the one or more parameters; and sending the compressed radar data from the radar system to the mobile computer system. ### Claim 2 (depends on 1) The method of claim 1, wherein the one or more operational conditions comprise: a traffic condition, a weather condition, a detected or predicted processing capability of the mobile computer system, an indication of closed-loop compression feedback, an available bandwidth, an operating mode for the radar system, or a desired accuracy, or any combination thereof. ### Claim 3 (depends on 1) The method of claim 1, wherein the compression technique comprises dimensional collapse of one dimension of the radar data comprising a plurality of dimensions. ### Claim 4 (depends on 1) The method of claim 1, wherein the compression technique comprises: determining one or more regions of interest within a scanning volume of the radar system; identifying one or more portions of the radar data corresponding to the one or more regions of interest; and excluding, from the compressed radar data, radar data not corresponding to the identified one or more portions of the radar data. ### Claim 5 (depends on 4) The method of claim 4, wherein the one or more parameters comprise information indicative of the one or more regions of interest. ### Claim 6 (depends on 1) The method of claim 1, wherein the compression technique comprises excluding, from the compressed radar data, values that fail to meet a threshold intensity value, a threshold Signal-to-Noise Ratio (SNR) value, or a threshold Signal-to-Cluster-Noise Ratio (SCNR) value. ### Claim 7 (depends on 6) The method of claim 6, wherein the one or more parameters comprise the threshold intensity value, the threshold SNR value, or the threshold SCNR value. ### Claim 8 (depends on 1) The method of claim 1, wherein the compression technique comprises: determining a median intensity value of intensity values of at least a portion of the radar data; and excluding, from the compressed radar data, intensity values from the at least a portion of the radar data that are less than the median intensity value multiplied by a multiplier. ### Claim 9 (depends on 8) The method of claim 8, wherein the one or more parameters comprise the multiplier. ### Claim 10 (depends on 1) The method of claim 1, wherein the compression technique comprises: a constant false alarm rate (CFAR) compression technique, a deep learning compression technique, or a video compression technique, or any combination thereof. ### Claim 11 A device comprising: a transceiver; a memory; and one or more processing units communicatively coupled with the transceiver and the memory, the one or more processing units configured to: receive, via the transceiver, operational condition information from a mobile computer system regarding one or more operational conditions regarding a vehicle, wherein the operational condition information is obtained by the mobile computer system using at least one of data from one or more non-radar sensors of the vehicle or data received via communication with another device; determine, from a plurality of compression modes of operation, a compression mode of operation for compressing radar data at a particular compression level based at least in part on a likelihood of collision of the vehicle with at least one object indicated by the operational condition information, wherein the plurality of compression modes of operation are associated with at least a first compression technique having a first compression level and a second compression technique having a second compression level, the second compression technique being different from the first compression technique; determine one or more parameters for radar data compression based at least in part on the compression mode; perform a radar scan with the transceiver to obtain the radar data; compress the radar data using a compression technique according to the compression mode, wherein the compression technique is performed in accordance with the one or more parameters; and send the compressed radar data from the device to the mobile computer system. ### Claim 12 (depends on 11) The device of claim 11, wherein the one or more operational conditions comprise: a traffic condition, a weather condition, a detected or predicted processing capability of the mobile computer system, an indication of closed-loop compression feedback, an available bandwidth, an operating mode for the device, or a desired accuracy, or any combination thereof. ### Claim 13 (depends on 11) The device of claim 11, wherein, to compress the radar data using the compression technique, the one or more processing units are configured to perform dimensional collapse of one dimension of the radar data. ### Claim 14 (depends on 11) The device of claim 11, wherein, to compress the radar data using the compression technique, the one or more processing units are configured to: determine one or more regions of interest within a scanning volume of the device; identify one or more portions of the radar data corresponding to the one or more regions of interest; and exclude, from the compressed radar data, radar data not corresponding to the identified one or more portions of the radar data. ### Claim 15 (depends on 14) The device of claim 14, wherein the one or more parameters comprise information indicative of the one or more regions of interest. ### Claim 16 (depends on 11) The device of claim 11, wherein, to compress the radar data using the compression technique, the one or more processing units are configured to exclude, from the compressed radar data, values that fail to meet a threshold intensity value, a threshold Signal-to-Noise Ratio (SNR) value, or a threshold Signal-to-Cluster-Noise Ratio (SCNR) value. ### Claim 17 (depends on 16) The device of claim 16, wherein the one or more parameters comprise the threshold intensity value, the threshold SNR value, or the threshold SCNR value. ### Claim 18 (depends on 11) The device of claim 11, wherein, to compress the radar data using the compression technique, the one or more processing units are configured to: determine a median intensity value of intensity values of at least a portion of the radar data; and exclude, from the compressed radar data, intensity values from the at least a portion of the radar data that are less than the median intensity value multiplied by a multiplier. ### Claim 19 (depends on 18) The device of claim 18, wherein the one or more parameters comprise the multiplier. ### Claim 20 (depends on 11) The device of claim 11, wherein, to compress the radar data using the compression technique, the one or more processing units are configured to perform: a constant false alarm rate (CFAR) compression technique, a deep learning compression technique, or a video compression technique, or any combination thereof. ### Claim 21 A device comprising: means for receiving operational condition information from a mobile computer system regarding one or more operational conditions regarding a vehicle, wherein the operational condition information is obtained by the mobile computer system using at least one of data from one or more non-radar sensors of the vehicle or data received via communication with another device; means for determining, from a plurality of compression modes of operation, a compression mode of operation for compressing radar data at a particular compression level based at least in part on a likelihood of collision of the vehicle with at least one object indicated by the operational condition information, wherein the plurality of compression modes of operation are associated with at least a first compression technique having a first compression level and a second compression technique having a second compression level, the second compression technique being different from the first compression technique; means for determining one or more parameters for radar data compression based at least in part on the compression mode; means for performing a radar scan to obtain the radar data; means for compressing the radar data using a compression technique according to the compression mode, wherein the compression technique is performed in accordance with the one or more parameters; and means for sending the compressed radar data to the mobile computer system. ### Claim 22 (depends on 21) The device of claim 21, wherein the one or more operational conditions comprise: a traffic condition, a weather condition, a detected or predicted processing capability of the mobile computer system, an indication of closed-loop compression feedback, an available bandwidth, an operating mode for the device, or a desired accuracy, or any combination thereof. ### Claim 23 (depends on 21) The device of claim 21, wherein the means for compressing the radar data using a compression technique comprise means for performing a dimensional collapse of one dimension of the radar data. ### Claim 24 (depends on 21) The device of claim 21, wherein the means for compressing the radar data using a compression technique comprises: means for determining one or more regions of interest within a scanning volume of the device; means for identifying one or more portions of the radar data corresponding to the one or more regions of interest; and means for excluding, from the compressed radar data, radar data not corresponding to the identified one or more portions of the radar data. ### Claim 25 (depends on 24) The device of claim 24, wherein the one or more parameters comprise information indicative of the one or more regions of interest. ### Claim 26 (depends on 21) The device of claim 21, wherein the means for compressing the radar data using a compression technique comprises means for excluding, from the compressed radar data, values that fail to meet a threshold intensity value, a threshold Signal-to-Noise Ratio (SNR) value, or a threshold Signal-to-Cluster-Noise Ratio (SCNR) value. ### Claim 27 (depends on 26) The device of claim 26, wherein the one or more parameters comprise the threshold intensity value, the threshold SNR value, or the threshold SCNR value. ### Claim 28 (depends on 21) The device of claim 21, wherein the means for compressing the radar data using a compression technique comprises: means for determining a median intensity value of intensity values of at least a portion of the radar data; and means for excluding, from the compressed radar data, intensity values from the at least a portion of the radar data that are less than the median intensity value multiplied by a multiplier. ### Claim 29 (depends on 21) The device of claim 21, wherein the means for compressing the radar data using a compression technique comprises: means for performing a constant false alarm rate (CFAR) compression technique, means for performing a deep learning compression technique, or means for performing a video compression technique, or any combination thereof. ### Claim 30 A non-transitory computer-readable medium storing instructions for compressing radar data in a radar system of a vehicle, the instructions comprising code for: receiving, at the radar system, operational condition information from a mobile computer system regarding one or more operational conditions regarding the vehicle, wherein the operational condition information is obtained by the mobile computer system using at least one of data from one or more non-radar sensors of the vehicle or data received via communication with another device; determining, from a plurality of compression modes of operation, a compression mode of operation for compressing the radar data at a particular compression level based at least in part on a likelihood of collision of the vehicle with at least one object indicated by the operational condition information, wherein the plurality of compression modes of operation are associated with at least a first compression technique having a first compression level and a second compression technique having a second compression level, the second compression technique being different from the first compression technique; determining one or more parameters for radar data compression based at least in part on the compression mode; performing a radar scan with the radar system to obtain the radar data; compressing the radar data using a compression technique according to the compression mode, wherein the compression technique is performed in accordance with the one or more parameters; and sending the compressed radar data from the radar system to the mobile computer system.