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CN-116133041-B - V2X closed-loop measurement method and device and Internet of vehicles equipment

CN116133041BCN 116133041 BCN116133041 BCN 116133041BCN-116133041-B

Abstract

The application provides a V2X closed-loop measurement method, a device and Internet of vehicles equipment, wherein the method applied to OMC comprises the steps of sending a measurement control message to a Road Side Unit (RSU) according to measurement task parameters corresponding to a measurement task when the start of the measurement task is detected, so that the RSU and an on-board unit (OBU) execute the measurement task, the measurement control message comprises a data acquisition configuration parameter and a measurement start signal, periodically receiving measurement data reported by the RSU, wherein the measurement data is obtained by the RSU in an acquisition period according to the first measurement information obtained by measuring the RSU and the second measurement information obtained by measuring the OBU, and carrying out data processing according to the measurement data to obtain a measurement report. The application realizes closed-loop measurement, effectively solves the problem that the measurement data of two sides cannot be acquired in the prior art, improves the accuracy of the final measurement result, and simultaneously reduces the manual participation during measurement, thereby being beneficial to reducing the cost.

Inventors

  • CHEN QINGTAO
  • LIU YINGHAO
  • ZHANG WEI

Assignees

  • 中信科智联科技有限公司

Dates

Publication Date
20260505
Application Date
20230228

Claims (19)

  1. 1. A method for V2X closed loop measurement applied to an operation and maintenance center OMC, comprising: under the condition that the start of a measurement task is detected, a measurement control message is sent to a Road Side Unit (RSU) according to measurement task parameters corresponding to the measurement task, wherein the measurement control message comprises a data acquisition configuration parameter and a measurement start signal, so that the RSU executes the measurement task according to the measurement control message and the OBU and obtains measurement data, the measurement data is obtained according to first measurement information and second measurement information in an acquisition period by the RSU, the first measurement information is obtained by measuring the RSU when executing the measurement task, the second measurement information is obtained by measuring the OBU when executing the measurement task, and the RSU periodically broadcasts downlink measurement information to the OBU in a coverage range according to the data acquisition configuration parameter or according to the data acquisition configuration parameter and first buffer information, wherein the first buffer information comprises the first measurement information and/or the second measurement information received last time; Periodically receiving measurement data reported by the RSU; and carrying out data processing according to the measurement data to obtain a measurement report.
  2. 2. The method of claim 1, wherein the data acquisition configuration parameters include an RSU device flag, a test task number, an application identifier AID, and packet parameters corresponding to each AID, wherein the packet parameters include a packet frequency, a packet length, and a packet number, and/or The task parameters comprise at least one of task starting interval time, acquisition duration, acquisition period and reporting path.
  3. 3. The method of claim 1, wherein the measurement data comprises at least one of: RSU information, direct communication interface PC5 information, message layer measurement, network layer measurement, higher layer measurement, and physical layer measurement; The RSU information comprises at least one of an RSU device mark, a test task number, an RSU temperature, a CPU occupancy rate, an RSU memory occupancy rate, a running second number, a RAM usage rate and an available RAM; The PC5 information comprises at least one of a PC5 sending byte, a PC5 receiving byte, a PC5 sending packet number and a PC5 receiving packet number; The message layer measurement quantity comprises at least one of basic safety message BSM (base station mobile station), BSM (base station mobile station) receiving byte number, MAP message MAP receiving byte number, traffic light phase and time sequence message SPAT receiving byte number, road side safety message RSM receiving byte number, road side information RSI receiving byte number and RSI receiving byte number; The physical layer measurement quantity comprises at least one of Reference Signal Received Power (RSRP), received Signal Strength Indication (RSSI), signal-to-interference plus noise ratio (SINR), data Packet Receiving Rate (PRR) and time delay.
  4. 4. The method as recited in claim 2, further comprising: terminating the measurement task if a first condition is met; Wherein the first condition includes: Detecting termination of user input, or And the acquisition time reaches the acquisition time length corresponding to the measurement task.
  5. 5. A method for V2X closed loop measurement, applied to an RSU, comprising: Receiving a measurement control message sent by an OMC, wherein the measurement control message comprises a data acquisition configuration parameter and a measurement start signal, and the measurement start signal is used for indicating the start time of the RSU and the OBU to execute a measurement task; According to the measurement control message and the OBU, a measurement task is executed to obtain measurement data, wherein the measurement data is obtained by the RSU according to first measurement information and second measurement information in an acquisition period, the first measurement information is obtained by measurement when the RSU executes the measurement task, and the second measurement information is obtained by measurement when the OBU executes the measurement task; reporting the measurement data to the OMC at a reporting node of the acquisition period so that the OMC performs data processing according to the measurement data to obtain a measurement report; And executing a measurement task according to the measurement control message and the OBU, and obtaining measurement data, wherein the method comprises the following steps: According to the data acquisition configuration parameters or according to the data acquisition configuration parameters and first cache information, periodically broadcasting downlink measurement information to the OBU in a coverage range, wherein the first cache information comprises the first measurement information and/or the second measurement information received last time; And analyzing the received uplink measurement message sent by the OBU to obtain the second measurement information in the measurement data and the first measurement parameter in the first measurement information, wherein the uplink measurement message is obtained after the OBU performs OBU side measurement according to the downlink measurement message.
  6. 6. The method of claim 5, wherein the downstream measurement message comprises a first header portion, a first upstream measurement data portion, a first downstream measurement data portion, and a first data padding portion; the first packet header part is configured according to the data acquisition configuration parameters and comprises at least one of an RSU device mark, an OBU device mark, a task number, a sending packet number and a message direction field; The first uplink measurement data part is obtained according to the first cache information and comprises at least one of AID, packet length, packet sending frequency, second packet sequence number, third timestamp when the OBU sends packets, fourth timestamp when the RSU receives the packets, second measurement information on the OBU side and longitude and latitude, altitude, speed and course angle of the OBU; The first downlink measurement data part is obtained according to the data acquisition configuration parameters and/or the first cache information and comprises at least one of an AID, a packet sending frequency, a packet length, a first packet sequence number, a first timestamp when the RSU sends a packet, a second timestamp when the OBU receives the packet and first measurement information measured by the RSU side.
  7. 7. The method of claim 6, wherein the parsing the received uplink measurement message sent by the OBU to obtain the second measurement information in the measurement data and the first measurement parameter in the first measurement information includes: judging whether the received candidate uplink measurement message is the uplink measurement message corresponding to the RSU; When the candidate uplink measurement message is determined to be the uplink measurement message corresponding to the RSU, recording the fourth timestamp when received, and caching the uplink measurement message; And acquiring the second measurement information according to the uplink measurement message, and acquiring the first measurement parameter according to the data carried in the uplink measurement message and the fourth timestamp.
  8. 8. The method of claim 7, wherein the obtaining the first measurement parameter according to the data carried in the uplink measurement message and the fourth timestamp comprises: Determining a first packet loss number according to a second packet sequence number carried in the uplink measurement message, and obtaining a first PRR in the first measurement parameter; And obtaining a first application time delay in the first measurement parameter according to the third time stamp and the fourth time stamp carried in the uplink measurement message.
  9. 9. A method of V2X closed loop measurement for an OBU, comprising: When a downlink measurement message sent by an RSU is received, a task number and/or an AID in the downlink measurement message is obtained, wherein the downlink measurement message is a data acquisition configuration parameter in a measurement control message sent by the RSU to the RSU according to an OMC, or is periodically broadcast to the OBU in a coverage range according to the data acquisition configuration parameter and first cache information, and the measurement control message also comprises a measurement start signal, a measurement start signal and a measurement start signal, wherein the measurement start signal is used for indicating the start time of the RSU and the OBU to execute a measurement task; Acquiring a second measurement parameter in second measurement information according to the downlink measurement message, and executing a measurement task process according to the task number and/or the AID to acquire measurement quantity information in the second measurement information; According to the downlink measurement information and the second measurement information, periodically sending uplink measurement information, counting through a packet sending counter corresponding to each AID, so that the RSU analyzes the received uplink measurement information sent by the OBU to obtain the second measurement information in measurement data and first measurement parameters in the first measurement information, obtaining the measurement data according to the second measurement information and the first measurement information obtained when the RSU executes a measurement task, and reporting the measurement data to the OMC at a reporting node of an acquisition period, so that the OMC performs data processing according to the measurement data to obtain a measurement report.
  10. 10. The method of claim 9, wherein when executing a measurement task process according to the task number and/or the AID, the method comprises: When the measurement task process corresponding to the task number does not exist in the OBU, caching data acquisition configuration parameters in the downlink measurement message, creating the measurement task process corresponding to the task number, and executing the measurement task process; when the measurement task process corresponding to the task number exists in the OBU, but no subtask corresponding to the AID exists, creating a subtask corresponding to the AID in the measurement task process corresponding to the task number, and executing the measurement task process; And initializing a packet counter corresponding to the AID and executing the measurement task process when the measurement task process corresponding to the task number and the subtask corresponding to the AID exist in the OBU.
  11. 11. The method of claim 9, wherein the obtaining the second measurement parameter in the second measurement information according to the downlink measurement message comprises: Obtaining a second application layer time delay in the second measurement parameter according to a first time stamp carried in the downlink measurement message when the RSU sends a packet and a second time stamp carried in the OBU receives the packet; and determining a second packet loss number according to the first packet sequence number carried in the downlink measurement message, and obtaining a second PRR in the second measurement parameter.
  12. 12. The method of claim 9, wherein after the acquiring the task number and/or AID in the downlink measurement message, the method further comprises: and when the task number is a preset termination task number, ending all measurement task processes and releasing resources.
  13. 13. The method as recited in claim 9, further comprising: When the OBU receives the downlink measurement messages of a plurality of RSUs in a preset time period, executing a measurement task process corresponding to the downlink measurement message received for the first time in the preset time period, or executing a measurement task process corresponding to the downlink measurement message with the maximum value of RSRP.
  14. 14. The method of claim 9, wherein the upstream measurement message comprises a second header portion, a second upstream measurement data portion, a second downstream measurement data portion, and a second data padding portion; The second packet header part is obtained according to the downlink measurement message and comprises at least one of an RSU device mark, a task number, a sending packet number, an OBU device mark and a message direction field; the second uplink measurement data part is obtained according to the downlink measurement information and the second measurement information and comprises at least one of an AID, a packet length, a packet sending frequency, a second packet sequence number, a third timestamp when the OBU sends a packet, a fourth timestamp when the RSU receives the packet, second measurement information on the OBU side and longitude and latitude, altitude, speed and course angle of the OBU; the second downlink measurement data part is obtained according to the downlink measurement message and comprises at least one of an AID, a packet sending frequency, a packet length, a first packet sequence number, a first time stamp when the RSU sends a packet, a second time stamp when the OBU receives the packet, first measurement information measured by the RSU side and longitude, latitude and height of the RSU.
  15. 15. A control device for V2X closed loop measurement is applied to OMC and is characterized by comprising a first processing module, a second processing module and a control module, wherein the first processing module is used for sending a measurement control message to a road side unit RSU according to a preset measurement task parameter after detecting a measurement starting operation, the measurement control message comprises a data acquisition configuration parameter and a measurement starting signal, so that the RSU executes a measurement task according to the measurement control message and the OBU and obtains measurement data, the measurement data is obtained by the RSU according to first measurement information and second measurement information in an acquisition period, the first measurement information is obtained by the RSU when the RSU executes the measurement task, the second measurement information is obtained by the OBU when the OBU executes the measurement task, the control module specifically comprises that the RSU periodically broadcasts a downlink measurement message to the OBU in a coverage range according to the data acquisition configuration parameter or according to the data acquisition configuration parameter and first buffer information, the first buffer information comprises the first measurement information and/or the last received measurement information is obtained by the RSU, the measurement starting signal is obtained by the RSU when the measurement information is obtained by the RSU after the measurement starting from the measurement task is executed, and the measurement information is obtained by the RSU in a measurement starting message The second processing module is used for periodically receiving the measurement data reported by the RSU; and the third processing module is used for carrying out data processing according to the measurement data to obtain a measurement report.
  16. 16. A control device for V2X closed loop measurement, applied to an RSU, comprising: The fourth processing module is used for receiving a measurement control message sent by the OMC, wherein the measurement control message comprises a data acquisition configuration parameter and a measurement start signal, and the measurement start signal is used for indicating the start time of the RSU and the OBU to execute a measurement task; The fifth processing module is used for executing a measurement task according to the measurement control message and the OBU to obtain measurement data, wherein the measurement data are obtained by the RSU according to first measurement information and second measurement information in a collection period, the first measurement information is obtained by measurement when the RSU executes the measurement task, and the second measurement information is obtained by measurement when the OBU executes the measurement task; A sixth processing module, configured to report, at a reporting node of the acquisition period, the measurement data to the OMC, so that the OMC performs data processing according to the measurement data to obtain a measurement report; the fifth processing module includes: the first processing unit is used for periodically broadcasting downlink measurement information to the OBU in a coverage range according to the data acquisition configuration parameters or according to the data acquisition configuration parameters and first cache information, wherein the first cache information comprises the first measurement information and/or the second measurement information received last time; And the second processing unit is used for analyzing the received uplink measurement message sent by the OBU to obtain the second measurement information and the first measurement parameter in the first measurement information, wherein the uplink measurement message is obtained after the OBU performs OBU side measurement according to the downlink measurement message.
  17. 17. A control device for V2X closed loop measurement, applied to an OBU, comprising: A seventh processing module, configured to obtain, when a downlink measurement message sent by an RSU is received, a task number and/or an AID in the downlink measurement message, where the downlink measurement message is a data acquisition configuration parameter in a measurement control message sent by the RSU to the RSU according to an OMC, or is periodically broadcast to the OBU in a coverage area according to the data acquisition configuration parameter and first cache information, and the measurement control message further includes a measurement start signal, configured to instruct the RSU and a start time of executing a measurement task by the OBU; The eighth processing module is used for acquiring second measurement parameters in second measurement information according to the downlink measurement information, and executing a measurement task process according to the task number and/or the AID to acquire measurement quantity information in the second measurement information; And a ninth processing module, configured to periodically send an uplink measurement message including the second measurement information according to the downlink measurement message and the second measurement information, and count the uplink measurement message by using a packet sending counter corresponding to each AID, so that the RSU analyzes the received uplink measurement message sent by the OBU, obtains a first measurement parameter in the second measurement information and the first measurement information in the measurement data, obtains the measurement data according to the second measurement information and the first measurement information obtained when the RSU performs a measurement task, and reports the measurement data to the OMC at a reporting node in an acquisition period, so that the OMC performs data processing according to the measurement data to obtain a measurement report.
  18. 18. An internet of vehicles device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor performing the steps of the method for V2X closed loop measurement for OMC according to any one of claims 1 to 4, or the steps of the method for V2X closed loop measurement for RSU according to any one of claims 5 to 8, or the steps of the method for V2X closed loop measurement for OBU according to any one of claims 9 to 14.
  19. 19. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method for V2X closed-loop measurement applied to OMC according to any one of claims 1 to 4, or the steps of the method for V2X closed-loop measurement applied to RSU according to any one of claims 5 to 8, or the steps of the method for V2X closed-loop measurement applied to OBU according to any one of claims 9 to 14.

Description

V2X closed-loop measurement method and device and Internet of vehicles equipment Technical Field The application relates to the technical field of intelligent transportation, in particular to a V2X closed-loop measurement method and device and Internet of vehicles equipment. Background The prior V2X road side equipment and terminal equipment do a large number of measurements, but the measurement and data acquisition method mainly comprises one-step laboratory measurement, namely, for a single or a small number of equipment, the measurement is carried out by using laboratory instruments and meters. 2. And data acquisition in a single-station remote mode, namely, aiming at a station to be tested, carrying out fixed-point testing on fixed distances of 50m, 100m, 150m. 3. And (3) carrying out data acquisition in a drive test network pulling mode, namely traversing all the areas to be tested by vehicle-mounted drive test equipment aiming at the areas to be tested, and acquiring wireless measurement values of all stations. The data acquired or measured is basically independent and single-sided, and cannot be effectively transmitted and comprehensively used. For example, the method is different from the actual network environment of the outfield and cannot adapt to the large-scale deployment of the outfield. The workload is large, the labor cost is high, and the large-scale deployment can not be adapted. Only the data of the coverage performance of the PC5 network at the vehicle Side can be obtained, and the data at the Road Side Unit (RSU) Side cannot be obtained. While still requiring human involvement. Therefore, a plurality of problems exist, on one hand, the network side cannot accurately obtain the measurement quantity of the terminal side, the terminal side cannot obtain the measurement quantity of the network side, and on the other hand, a plurality of measurements need to be manually participated, and the cost is high. Disclosure of Invention The technical aim to be achieved by the embodiment of the application is to provide a V2X closed-loop measurement method and device and Internet of vehicles equipment, which are used for solving the problems that when the current V2X performs measurement data acquisition, the measurement quantity of multi-side equipment cannot be accurately acquired, manual participation is needed, and the cost is high. In order to solve the above technical problems, an embodiment of the present application provides a method for V2X closed-loop measurement, which is applied to an Operation MAINTENANCE CENTER (OMC for short), and includes: Under the condition that the start of a measurement task is detected, sending a measurement control message to an RSU according to a measurement task parameter corresponding to the measurement task, so that the RSU and an On Board Unit (OBU) execute the measurement task, wherein the measurement control message comprises a data acquisition configuration parameter and a measurement start signal; Periodically receiving measurement data reported by the RSU, wherein the measurement data are obtained by the RSU according to first measurement information and second measurement information in an acquisition period, the first measurement information is obtained by measurement when the RSU executes the measurement task, and the second measurement information is obtained by measurement when the OBU executes the measurement task; and carrying out data processing according to the measurement data to obtain a measurement report. Specifically, the data acquisition configuration parameters comprise RSU equipment marks, test task numbers, application identifiers (APP IDENTITY, AIDs for short) and packet parameters corresponding to each AID, wherein the packet parameters comprise packet sending frequency, packet length and packet sending number, and/or The task parameters comprise at least one of task starting interval time, acquisition duration, acquisition period and reporting path. In particular, the method as described above, the measurement data comprises at least one of: RSU information, direct communication interface PC5 information, message layer measurement, network layer measurement, higher layer measurement, and physical layer measurement; The RSU information comprises at least one of an RSU device mark, a test task number, an RSU temperature, a CPU occupancy rate, an RSU memory occupancy rate, a running second number, a RAM usage rate and an available RAM; the PC5 port information comprises at least one of PC5 sending bytes, PC5 receiving bytes, PC5 sending packet number and PC5 receiving packet number; The message layer measurement quantity comprises at least one of Basic safety message (BSM SAFETY MESSAGE), BSM receiving byte number, MAP message MAP receiving byte number, traffic light phase and time sequence message (SIGNALPHASE TIMING MESSAGE, SPAT) receiving byte number, road side safety message (Road SAFETY MESSAGE, RSM) receiving byte number, RSM r