Method and device for cellular network signal measurement

1. A method for cellular network signal measurement, comprising:

acquiring at least one set of measurement data collected during a flight of an unmanned aerial vehicle (UAV), each of the at least one set of measurement data comprising a base station identifier and a signal quality parameter and the base station identifier being an identifier of a base station for residing during collection of the measurement data; and

sending the at least one set of measurement data to a base station, wherein the base station is the same as or different from the base station for residing during collection of the measurement data, and the at least one set of measurement data is used for determining whether the base station has a coverage vulnerability,

wherein determining whether the base station has the coverage vulnerability comprises one of:

when a flight path of the UAV is formed by connecting multiple coordinate points within a coverage area of a side lobe of the base station in series, determining, by the base station from the at least one set of measurement data, measurement data containing base station identifiers different from a base station identifier of the base station; and in response to determining that an amount of the measurement data containing the base station identifiers different from the base station identifier of the base station exceeds a set proportion, determining that the base station has the coverage vulnerability; or

when each of the at least one set of measurement data further comprises a flight altitude and a geographical position, determining, by the base station, measurement data in a coverage area of a side lobe of the base station according to the flight altitude and the geographical position, and in response to determining that a base station identifier in the measurement data is different from a base station identifier of the base station, determining that the coverage area of the base station has the coverage vulnerability.

2. The method of claim 1 , wherein each of the at least one set of measurement data further comprises at least one of the flight altitude or the geographical position.

3. The method of claim 1 , further comprising:

receiving a terminal information request message from the base station,

wherein sending the at least one set of measurement data to the base station comprises:

sending a terminal information response message to the base station, the terminal information response message comprising the at least one set of measurement data.

4. The method of claim 3 , further comprising:

before receiving the terminal information request message from the base station, sending indication information to the base station, the indication information indicating that the UAV has collected the at least one set of measurement data.

5. The method of claim 4 , wherein sending the indication information to the base station comprises:

sending, to the base station, a radio resource control (RRC) connection setup complete message carrying the indication information.

6. The method of claim 1 , further comprising:

receiving a logged measurement configuration message from the base station, the logged measurement configuration message indicating a configuration parameter for minimization of drive tests (MDT) in a cellular network; and

collecting the measurement data according to the configuration parameter indicated through the logged measurement configuration message.

7. The method of claim 6 , wherein the configuration parameter comprises data required to be collected and data required to be uploaded to the base station.

8. The method of claim 6 , further comprising:

sending terminal capability information to the base station, the terminal capability information indicating that the UAV has an MDT function.

9. A method for cellular network signal measurement, comprising:

receiving, by a base station, at least one set of measurement data from a terminal device, each of the at least one set of measurement data comprising a base station identifier and a signal quality parameter and the base station identifier being an identifier of a base station where the terminal device resides during collection of the measurement data,

wherein the base station is the same as or different from the base station where the terminal device resides during collection of the measurement data, and the at least one set of measurement data is used for determining whether the base station has a coverage vulnerability,

wherein determining whether the base station has the coverage vulnerability comprises one of:

when a flight path of the terminal device is formed by connecting multiple coordinate points within a coverage area of a side lobe of the base station in series, determining, by the base station from the at least one set of measurement data, measurement data containing base station identifiers different from a base station identifier of the base station; and in response to determining that an amount of the measurement data containing the base station identifiers different from the base station identifier of the base station exceeds a set proportion, determining that the base station has the coverage vulnerability; or

when each of the at least one set of measurement data further comprises a flight altitude and a geographical position, determining, by the base station, measurement data in a coverage area of a side lobe of the base station according to the flight altitude and the geographical position, and in response to determining that a base station identifier in the measurement data is different from a base station identifier of the base station, determining that the coverage area of the base station has the coverage vulnerability.

10. The method of claim 9 , wherein each of the at least one set of measurement data further comprises at least one of the flight altitude or the geographical position.

11. A device for cellular network signal measurement, comprising:

a processor, configured to acquire at least one set of measurement data collected during a flight of an unmanned aerial vehicle (UAV), each of the at least one set of measurement data comprising a base station identifier and a signal quality parameter and the base station identifier being an identifier of a base station for residing during collection of the measurement data; and

a transceiver, configured to send the at least one set of measurement data to a base station, wherein the base station is the same as or different from the base station for residing during collection of the measurement data, and the at least one set of measurement data is used for determining whether the base station has a coverage vulnerability,

wherein the at least one set of measurement data is further used for one of:

when a flight path of the UAV is formed by connecting multiple coordinate points within a coverage area of a side lobe of the base station in series, the at least one set of measurement data is used for the base station to determine measurement data containing base station identifiers different from a base station identifier of the base station; and in response to determining that an amount of the measurement data containing the base station identifiers different from the base station identifier of the base station exceeds a set proportion, determining that the base station has the coverage vulnerability; or

when each of the at least one set of measurement data further comprises a flight altitude and a geographical position, the at least one set of measurement data is used for the base station to determine measurement data in a coverage area of a side lobe of the base station according to the flight altitude and the geographical position, and in response to determining that a base station identifier in the measurement data is different from a base station identifier of the base station, determining that the coverage area of the base station has the coverage vulnerability.

12. The device of claim 11 , wherein each of the at least one set of measurement data further comprises at least one of the flight altitude or the geographical position.

13. The device of claim 11 , wherein the transceiver is further configured to:

receive a terminal information request message from the base station; and

send a terminal information response message to the base station, the terminal information response message comprising the at least one set of measurement data.

14. The device of claim 13 , wherein the transceiver is further configured to:

before receiving the terminal information request message from the base station, send indication information to the base station, the indication information indicating that the UAV has collected the at least one set of measurement data.

15. The device of claim 14 , wherein the transceiver is configured to send a radio resource control (RRC) connection setup complete message carrying the indication information to the base station.

16. The device of claim 11 , wherein the transceiver is configured to receive a logged measurement configuration message from the base station, the logged measurement configuration message indicating a configuration parameter for minimization of drive tests (MDT) in a cellular network; and

the processor is further configured to collect the measurement data according to the configuration parameter indicated through the logged measurement configuration message.

17. The device of claim 16 , wherein the transceiver is further configured to send terminal capability information to the base station, the terminal capability information indicating that the UAV has an MDT function.

18. The device of claim 16 , wherein the configuration parameter comprises at least one of the following:

a job type of MDT, which is logged MDT only;

an area scope including two types: one being a cell and the other being a tracking area;

a list of measurements defining a content of the signal quality parameter to be RSRP or RSRQ;

a reporting trigger, one being periodic reporting and the other being event-triggered reporting;

a logging interval; or

a logging duration.

19. A base station for cellular network signal measurement, comprising:

a transceiver, configured to receive at least one set of measurement data from a terminal device, each of the at least one set of measurement data comprising a base station identifier and a signal quality parameter and the base station identifier being an identifier of a base station where the terminal device resides during collection of the measurement data,

wherein the base station is the same as or different from the base station where the terminal device resides during collection of the measurement data, and the at least one set of measurement data is used for determining whether a base station has a coverage vulnerability; and

a processor, configured to:

when a flight path of the terminal device is formed by connecting multiple coordinate points within a coverage area of a side lobe of the base station in series, determine, from the at least one set of measurement data, measurement data containing base station identifiers different from a base station identifier of the base station; and in response to determining that an amount of the measurement data containing the base station identifiers different from the base station identifier of the base station exceeds a set proportion, determine that the base station has the coverage vulnerability; or

when each of the at least one set of measurement data further comprises a flight altitude and a geographical position, determine measurement data in a coverage area of a side lobe of the base station according to the flight altitude and the geographical position, and in response to determining that a base station identifier in the measurement data is different from a base station identifier of the base station, determine that the coverage area of the base station has the coverage vulnerability.