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Method and system for determining positions of terminals

A terminal location and terminal technology, applied in the communication field, can solve problems such as the inability to determine the location of the terminal, the inability to adopt the TDD system, and the inability to determine the attribution cellportion, etc.

Active Publication Date: 2012-04-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the existing technical solution for SIR information dedicated measurement reporting according to cell portion is only applicable to the FDD system, and cannot be applied to the positioning of the terminal under the time division duplex (TDD) system, because the FDD system stipulates that the ISCP is calculated before the joint monitoring However, the TDD system stipulates that the ISCP is calculated after joint monitoring, so the TDD system cannot use the method of dedicated measurement reporting according to the cell portion used in the FDD system to determine the terminal’s attribution cell portion
At present, the existing technology has not provided a technical solution for how to perform dedicated measurement report according to the cell portion to determine the terminal's attributable cell portion for the TDD system, so in the TDD system, it is impossible to determine the terminal's location according to the attributable cell portion
[0008] To sum up, in the prior art, the attributable cell portion cannot be determined under the TDD system, which leads to the inability to determine the terminal position according to the attributable cell portion

Method used

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  • Method and system for determining positions of terminals
  • Method and system for determining positions of terminals
  • Method and system for determining positions of terminals

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The radio network controller initiates the best cell portion report for the terminal through a dedicated measurement request message, and correspondingly gives the number of cell portions to be reported. The information contained in the dedicated measurement request message is shown in Table 1 below:

[0046] information name

describe

Base station communication context identifier

identify a terminal

Measurement ID

Identifies a private measurement

Dedicated measurement type

Mark the "best cell portion" type

The number of cell portions reported

Indicate the number of cell portion to be reported

[0047] Table 1

[0048] The optimal cell portion, that is, several cell portions with the best signals, may include one cell portion, or may include multiple cell portions.

[0049] After receiving the dedicated measurement request message, the base station performs RSCP measurement according to the cell portion for...

Embodiment 2

[0057] The base station can use the formula (1) to calculate the SIR value corresponding to each cell portion according to the measured RSCP value of each cell portion combined with the ISCP value of the same cell portion.

[0058] It should be noted that the value of the parameter ISCP in the formula (1) in the embodiment of the present invention is the value of the ISCP before the combination of the two signals, not the value of the ISCP calculated after the joint detection.

[0059] After calculating the SIR value corresponding to each cell portion, sort the cell portion according to the order of the SIR value from large to small, and select the cell portion from the largest SIR according to the number of cell portion reported by the RNC to generate a cell A list of correspondence between portion and RSCP, and report to the RNC.

[0060] The RNC may use the first-ranked cell portion, that is, the cell portion corresponding to the largest SIR value, as the terminal's attribu...

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Abstract

The invention discloses a method and system for determining positions of terminals, which is used for determining the attributive cell portion under a TDD (Technical Data Digest) system to realize the terminal position determination according to the attributive cell portion of the terminals. The method for determining the positions of the terminals comprises the following steps that: a base station carries out RSCP (Received Signal Code Power) measurement on physical channels of the terminals according to the cell portion and the special measurement requirement for the terminals, wherein the special measurement requirement is sent by an RNC (Radio Network Controller), and a corresponding relationship list of the cell portion and the RSCP is generated and is reported to the RNC; and the RNC determines the attributive cell portion of the terminals according to the corresponding relationship list and determines the positions of the terminals according to the attributive cell portion of the terminals.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and system for determining the position of a terminal. Background technique [0002] With the development of the third-generation mobile communication technology, the design method of the base station tends to separate the baseband and radio frequency, and the remote base station is a base station that separates the baseband and radio frequency. [0003] In the baseband remote base station system, the distribution mode of the baseband processing unit (BBU, Base Band Unit) and the radio frequency remote unit (RRU, Remote RF Unit) has been widely used, and multiple smart antennas are used in one cell There are even application scenarios where multiple channels in one cell support channelized applications and smart antennas at the same time. [0004] For each specific antenna group coverage, a cell portion can be defined and identified by a cell portion ID. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00
CPCH04W64/00G01S11/06
Inventor 张大钧
Owner DATANG MOBILE COMM EQUIP CO LTD