公开(公告)号：US20210232610A1

公开(公告)日：2021-07-29

申请号：US17208792

申请日：2021-03-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junfeng SU ,  Wei LI

IPC: G06F16/29 ,  H04W64/00 ,  H04W84/04 ,  H04B17/318

Abstract: A positioning method is disclosed, including: collecting a location fingerprint; searching by using the CellID of the first base station, an offline fingerprint database for a first offline fingerprint that matches the CellID of the first base station, where the offline fingerprint database is stored in the terminal device, and the offline fingerprint database is configured to manage a plurality of offline fingerprints; searching based on a reference point location in the first offline fingerprint and the channel parameters of the Q neighboring cell base stations, the offline fingerprint database for a plurality of second offline fingerprints that meet a first condition; and determining a location of the terminal device based on a signal identifier and the reference point location in the first offline fingerprint, signal identifiers and reference point locations in the plurality of second offline fingerprints, and the Q+1 signal identifiers in the location fingerprint.