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Method for reducing E-CID (Enhanced Cell-ID positioning method) positioning delay and signaling overheads

A signaling overhead and delay technology, applied in wireless communications, electrical components, etc., can solve problems such as low accuracy, and achieve the effect of reducing positioning delay and signaling resources.

Active Publication Date: 2015-03-25
WUHAN HONGXIN TELECOMM TECH CO LTD
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AI Technical Summary

Problems solved by technology

The E-CID positioning method mainly estimates the location of the UE by obtaining one or more information such as the cell where the UE is located, AOA, Timing Advance Type1, Timing Advance Type2, RSRP, and RSRQ, combined with the physical location of the cell. low, around 100 meters

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  • Method for reducing E-CID (Enhanced Cell-ID positioning method) positioning delay and signaling overheads
  • Method for reducing E-CID (Enhanced Cell-ID positioning method) positioning delay and signaling overheads

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Embodiment Construction

[0039] The specific embodiment of the present invention is described in detail according to accompanying drawing:

[0040] The present invention can be applied as figure 1 , figure 2 The two scenarios shown are described as follows:

[0041] figure 1 The described process of performing E-CID measurement and positioning on UE undergoing X2 handover is as follows:

[0042] 1) E-SMLC sends an E-CID measurement initial request message (E-CID MEASUREMENT INITIATION REQUEST) to the source base station;

[0043] 2) After the source base station receives the E-CID measurement initial request message, it saves the measurement configuration parameters to the UE context;

[0044] 3) The source base station sends an RRC reconfiguration request message (RRCConnectionReconfiguration) to the UE in combination with the relevant E-CID measurement algorithm, which contains the E-CID measurement configuration;

[0045] 4) After the source base station receives the RRC reconfiguration compl...

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Abstract

The invention provides a method for reducing E-CID (Enhanced Cell-ID positioning method) positioning delay and signaling overheads. The method aims to solve the problem about which scheme needs to be adopted to guarantee the smooth completing of the switching process and the positioning process if the E-CID is conducted on switched UE and to reduce the delay and signaling resources of the two processes as far as possible. According to the scheme, only switching based on an X2 port and an S1 port between base stations in an LTE system is concerned, for X2 switching and S1 switching between the base stations, E-CID measuring configuration information is carried in a switching request message, and after a target base station is switched, the positioning process of the UE can be completed continuously according to the E-CID measuring configuration information brought about by a source base station. According to the method, for the UE needing to be switched, due to the fact that the UE does not need to interact with the E-SMLC, the positioning delay and signaling resources can be reduced.

Description

technical field [0001] The invention relates to the field of mobile communication. Specifically, the present invention relates to a 3GPP long-term evolution system (LTE, Long Term Evolution), when performing E-CID (Enhanced Cell-ID positioning method, enhanced cell ID positioning method) positioning on a mobile phone, reducing the positioning delay and signaling overhead methods. Background technique [0002] The CID positioning method is the positioning requirement of R8, and the enhanced E-CID positioning method appeared in R9. The following briefly introduces the CID positioning method. After receiving the Location Report Control (including the instruction to start the location report) sent by the MME (Mobility Management Entity, the mobile management entity), the base station reports the CGI and TAI of the cell, and detects whether the serving cell of the UE is change. If the UE performs a handover or reestablishment behavior between different cells in the same base s...

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Application Information

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IPC IPC(8): H04W24/10H04W36/00
CPCH04W24/10H04W36/0005H04W36/0083H04W64/00
Inventor 叶皇邵世才罗先礼乐诚王贻先
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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