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A measurement reporting method for a closed subscriber group cell

A closed subscriber group and measurement reporting technology, applied in the field of mobile communications, can solve problems such as inability to evaluate CSG cells, UEs cannot preferentially access CSG cells, and report to CSG cells, etc., to achieve the effect of meeting mobility requirements

Active Publication Date: 2016-05-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with existing protocols, the UE cannot evaluate CSG cells on mixed frequency points or dedicated frequency points that are not in the measurement configuration
At the same time, due to the limitation of the measurement report format, the UE cannot report CSG cells on mixed frequency points or dedicated frequency points that are not in the measurement configuration.
However, if the network side configures the measurement configuration on a dedicated frequency point for the UE, the UE will use the existing reporting mechanism to cause many useless measurement reports, because the CSG cells that the UE cannot access will be reported in the measurement report, and these useless measurements The report will seriously affect the performance of the network, and the existing problems will prevent the UE in the connected state from smoothly and preferentially accessing the CSG cell

Method used

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  • A measurement reporting method for a closed subscriber group cell
  • A measurement reporting method for a closed subscriber group cell
  • A measurement reporting method for a closed subscriber group cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] In this embodiment, the UE in the connected state actively detects a CSG cell that is not on the frequency point in the measurement configuration. If it is judged that the UE can access the CSG cell and the signal quality of the CSG cell meets the preset conditions, then Reporting the measurement report including the CSG cell to the network side.

[0068] The CSG cells that the UE can access and whose signal quality meets the conditions are the CSG cells available to the UE. Reporting such cells can avoid a large number of useless measurement reports.

[0069] like figure 1 As shown, a measurement reporting method of the CSG cell in this embodiment includes:

[0070] Step 110, when the UE in the connected state discovers an adjacent CSG cell, it reads the system information of the CSG cell;

[0071] Step 120, judging whether the CSG cell is a cell that the UE can access according to the system message of the CSG cell;

[0072] Considering that in the prior art, the ...

example 1

[0093] The network layout of WCDMA system is as follows: figure 2 As shown, there is an Iub interface between the radio network controller (RNC) and the base station to which it belongs, and it is assumed that the UE is located in the cell to which base station 1 belongs. The UE is in the connected state. The UE has a list of CSG cells that are allowed to be accessed. The specific process for the UE to report the measurement is as follows:

[0094] The RNC sends a measurement control message to the UE, and the measurement control message includes a measurement identifier, information of adjacent cells to be measured, and measurement configurations such as TTT. The UE initializes the parameters of all measurement identifiers according to the information in the measurement control message, evaluates and determines all measurement objects meeting the reporting conditions according to the initialized parameters, generates a measurement report and sends it to the RNC.

[0095] At...

example 2

[0099] The network layout of the LTE system is as follows: image 3 As shown, there is an S1 interface between the core network and the base station (macro base station), and an X2 interface exists between adjacent base stations; the home base station can be directly connected to the core network, or can be connected to the core network through the home base station gateway. There is no X2 interface between the home base station and the macro base station. The UE is located in the cell to which the macro base station belongs and is in a connected state. The UE has a list of CSG cells that are allowed to access.

[0100] The macro base station sends a measurement control message to the UE, wherein the measurement control message includes a measurement identifier, information of neighboring cells to be measured, and measurement configuration information such as TTT. The UE initializes the parameters of all measurement identifiers according to the information in the measurement ...

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Abstract

A closed subscriber group cell measurement reporting method and corresponding user equipment, the measurement reporting method includes: a user equipment (UE) in a connected state discovers an adjacent CSG cell, if the CSG cell can be accessed and the CSG If the measurement result of the cell satisfies the condition, a measurement report including the CSG cell is reported to the network side. The invention also provides user equipment capable of implementing the measurement reporting method. The invention can solve the UE's mobility requirement on the CSG cell and avoid a large number of useless measurement reports.

Description

technical field [0001] The present invention relates to the measurement and reporting of adjacent cells by user equipment in the field of mobile communications, in particular to a measurement reporting method for a closed subscriber group (Closed Subscriber Group, CSG for short) cell and the corresponding user equipment. Background technique [0002] In a mobile communication system, in order to meet mobility requirements, after a user equipment (UE) establishes a connection with the network in a certain cell, the UE still needs to measure the signal quality of its neighboring cells in order to select a suitable cell to switch. Taking EUTRAN (EvolvedUniversalTerrestrialRadioAccessNetwork, Evolved Global Terrestrial Radio Access Network) as an example, the specific process of UE measurement in the connected state is: [0003] The network side sends a measurement control message to the UE, where the measurement control message includes a measurement identity (MID for short), ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W36/00
CPCH04W48/02H04W36/0083H04W36/04H04W36/14H04W84/045H04W36/0094H04W36/0085
Inventor 邓云施小娟黄亚达陈中明
Owner ZTE CORP
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