Patent ID: 11960012
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A chip system is applied to a first electronic device, the first electronic device positions a second electronic device, the second device receiving broadcast signals transmitted by a plurality of satellites, the chip system comprising:
a circuit; and
one or more processors coupled to the interface circuit, the one or more processors being interconnected by a cable;
the interface circuit is configured to receive a signal from a memory of the first electronic device and send the signal to the processor, the signal comprising computer instructions stored in the memory, and the one or more processors execute the computer instructions, the first electronic device performs the steps of:
obtaining a first location of the second electronic device;
determining a plurality of candidate locations using the first location as a center point;
selecting a plurality of candidate positioning locations from the plurality of candidate locations based on elevations and azimuths of the plurality of satellites relative to the plurality of candidate locations, grid data corresponding to the plurality of candidate locations, and signal parameters of the broadcast signals received by the second electronic device from the plurality of satellites, each grid data corresponding to each candidate location comprising location information and a sky blocking curve, a sky blocking curve of one candidate location indicating candidate elevations and candidate azimuths of a plurality of obstructions around the one candidate location; and
correcting the first location of the second electronic device based on the location information of the plurality of candidate positioning locations and outputting a corrected second location of the second electronic device.