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Positioning method and device

A positioning method and positioning measurement technology, applied in the field of communication, can solve the problems of difficulty in guaranteeing the performance and accuracy of the positioning system, occupying large system resources, etc.

Active Publication Date: 2021-03-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing PRS signal needs to occupy a lot of system resources, otherwise it is difficult to guarantee the performance and accuracy of the positioning system, especially the positioning in the indoor environment

Method used

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Experimental program
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Embodiment Construction

[0070] Embodiments of the present application provide a positioning method and device, which are used to improve indoor positioning performance and accuracy without occupying a large amount of system resources.

[0071] In traditional PRS design, PRS signals from cells are periodically transmitted in a pre-configured pattern. The transmit power (Energy per resource element, EPRE) of each PRS resource unit (Resource element, RE) is the same, and the PRS EPRE generally cannot be less than other broadcast data or reference signal EPRE. The reason is that the UE needs to detect at least three The PRS of the cell, so as to achieve the purpose of determining the location of the UE. The main problem of traditional PRS is that the PRS signal needs to occupy a large amount of system resources, otherwise it is difficult to guarantee the performance and accuracy of the positioning system, especially the positioning in the indoor environment.

[0072] In order to support the improvement ...

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Abstract

The application discloses a positioning method and device, which are used to improve indoor positioning performance and accuracy without occupying a large amount of system resources. On the positioning server side, a positioning method provided by an embodiment of the present application includes: obtaining the positioning capability supported by the user equipment UE, and determining according to the positioning capability that the UE can obtain by detecting the positioning reference signal ioPRS used for indoor and outdoor positioning. Positioning measurement value; obtain positioning assistance data, including ioPRS configuration data, and send the positioning service data to the UE; obtain the positioning measurement value provided by the UE based on the ioPRS, and use the positioning measurement value , to locate the UE.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a positioning method and device. Background technique [0002] Observed Time Difference of Arrival (Observed Time Difference of Arrival, OTDOA) is a method introduced by 3GPP that uses the measured downlink reference signal time difference for positioning. In this method, the user equipment (UserEquipment, UE) measures the reference signal sent by the serving cell and the neighboring cell to obtain a reference signal time difference measurement (Reference signal time difference measurement, RSTD) value, and reports the RSTD measurement value to the network positioning server. The network location server uses a multilateration algorithm or other algorithms to determine the location of the UE. [0003] In order to provide good OTDOA positioning performance, 3GPP specifically defines positioning reference signals (positioning reference signals, PRS) for supporti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/021H04W4/33H04W64/00
CPCH04W4/021H04W64/006H04W4/33H04W64/00G01S5/0236H04W4/025G01S1/0428G01S1/68G01S5/10G01S2201/02G01S2205/008H04W72/0446H04W72/51
Inventor 达人郑方政高雪媛李辉高秋彬
Owner DATANG MOBILE COMM EQUIP CO LTD