Triangulation positioning method based on CDR data

Abstract

The invention discloses a triangulation positioning method based on CDR data. The triangulation positioning method comprises the following steps: acquiring third MR data with user information and a front-back switching chain relation by utilizing the CDR data and XDR data; using the third MR data to construct a user triangular distance positioning structure; performing real-time positioning on the mobile user by using a triangular distance positioning structure; wherein the third MR data are obtained through multi-level user information backfilling. User information backfilling is performed on the first MR data to obtain second MR data, and then the CDR data is associated with the second MR data according to the same user and time sequence to obtain third MR data; the problem that triangulation positioning cannot be carried out under the condition that no two or more non-co-station neighbor cells exist in the existing MR data is solved by utilizing the user information contained in the third MR data, the front and back switching chain relation and the RSRP information.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a triangulation positioning method based on CDR data. Background technique [0002] Based on the joint correlation analysis of the operator's signaling data and MR data, the product solution that provides users with real-time and accurate positioning services has become more and more mature in the market. , developed to high-precision fingerprint positioning based on MR data, and its positioning accuracy can reach within 100M. [0003] However, fingerprint positioning has certain limitations, especially in remote areas where the density of base stations is small, there are isolated island stations with no neighbors, and the agps fingerprint data is less applicable, and fingerprint positioning cannot be performed. The overall fingerprint positioning rate is only about 80%. [0004] In order to more accurately locate the remaining 20% ​​of the data that cannot be loc...

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Problems solved by technology

[0017] In order to solve the above problems, a triangulation method based on CDR data is proposed. By backfilling the user information on the first MR data, the second MR data is obtained, and then the CDR data is compared with the second MR data according to the same user and time sequence. Correlate to obtain the third MR data; use the user information contained in the third MR data and the relationship between the front and rear handover chains and RSRP information to solve the problem that there are no two or more non-co-sited neighbors in the existing MR data. The problem with triangulation

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