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A positioning method and device

A positioning method and identification technology, applied in the field of communication, can solve the problems of not yet given a priori points, poor feasibility, etc.

Active Publication Date: 2020-02-14
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current situation, how to determine and screen prior points similar to the environment of the point to be estimated has not been given, which makes the scheme less feasible

Method used

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  • A positioning method and device
  • A positioning method and device
  • A positioning method and device

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Embodiment Construction

[0031] Aiming at the inability to determine and select a priori points similar to the environment of the point to be estimated when performing positioning through the above formula 2, the feasibility of positioning based on formula 2 is poor. In the technical solution proposed in the embodiment of the present invention, by determining the prior points The point database, when the positioning is performed by formula 2, the corresponding prior point is determined in the prior point database, so that the prior point that is similar to the environment of the point to be estimated can be determined and screened, and the feasibility of the scheme is improved.

[0032] The main realization principles, specific implementation methods and corresponding beneficial effects of the technical solutions of the embodiments of the present invention will be described in detail below with reference to each accompanying drawing.

[0033] The embodiment of the present invention proposes a positioni...

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Abstract

The invention discloses a positioning method and apparatus. The method comprises obtaining a priori point database; determining, according to the prior point database, a first distance between user equipment (UE) and a serving base station, a second distance between the UE and a first adjacent base station, and a third distance between the UE and a second adjacent base station; determining a priori point in a reference signal received power (RSRP) triangular field strength positioning mode based on the first distance, the second distance, and the third distance; and determining the current position of the UE according to the priori point. The positioning method and apparatus are used for determining and selecting the priori point similar to a point to be estimated in the environment and improving the feasibility of the RSRP triangular field field positioning scheme.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a positioning method and device. Background technique [0002] In a Long Term Evolution (LTE) network, calculating the location information of a user equipment (UE) may include triangular field strength positioning based on Reference Signal Receiving Power (RSRP), TA+AoA positioning, OTDOA Positioning and many other methods. Among them, the triangular field strength positioning based on RSRP is widely used in the industry because of its easy data acquisition, simple implementation, and little modification to the existing network. [0003] Among them, the positioning method based on the RSRP triangular field strength relies on the SPM propagation model to calculate the distance between the UE and the base station. The calculation method of the SPM model is shown in the following formula 1: [0004] PL=K1+K2lg(d)+K3log(heff)+K4LDiffraction+K5lg(heff)lg(d)+K6lg(hm...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G01S5/10
CPCH04W4/023H04W64/00
Inventor 左一平吕喆
Owner CHINA MOBILE COMM GRP CO LTD