WO2012024919A1

WO2012024919A1 - Method and device for load control in user equipment network performance measurement

Info

Publication number: WO2012024919A1
Application number: PCT/CN2011/071455
Authority: WO
Inventors: 吴道立
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-24
Filing date: 2011-03-02
Publication date: 2012-03-01
Also published as: CN102378237A; CN102378237B

Abstract

The invention discloses a method and device for load control in user equipment network performance measurement to solve the problem of Operation Administration and Maintenance (OAM) load control in the user equipment network performance measurement. In the invention, an OAM system detects the current system load status in real time, decides to activate or change trace control parameters in the user equipment network performance measurement according to the current system load, and notifies, by adding a data report manner attribute in the trace control parameters, the user equipment to change the report manner of measurement data. The invention achieves the load control when the OAM system performs the user equipment network performance measurement, and improves the efficiency and flexibility of the user equipment network performance measurement.

Description

Load control method and device for user equipment network performance measurement

The present invention relates to a user equipment tracking system in a mobile communication network, and more particularly to a load control method and apparatus for measuring data reporting when user equipment network performance measurement is performed using user tracking. Background technique

Network coverage optimization for mobile communication networks is a fast and efficient way to use the Minimization of Drive Tests (MDT). The completion of the MDT can be implemented by using UE based network performance measurements. There are two types of data reporting methods for user equipment network performance measurement: Logged MDT and Real Time (MDT).

In the Logged MDT mode, the User Equipment periodically saves the measurement data to the local log, sends it to the base station (eNodeB) at the next timing, and then reports it to the Trace Connection Entity (TCE).

The Immediate MDT mode requires that more than 50 UEs can simultaneously report data in real time. The measured data is not saved locally. The data is continuously reported to the eNodeB in the second-order cycle, and then reported to the TCE from the eNodeB.

TCE is a component of the user tracking system, and the user tracking system is part of the Operation Administration and Maintenance (OAM). Although the MDT method has an irreplaceable effect on the network coverage optimization of the mobile communication network compared to the Logged MDT mode, the amount of data reported in real time is large, which has a great impact on the OAM system load. Under the condition that the OAM system can withstand the load, the data should be reported in the Immediate MDT mode.

In the existing system, the user equipment network performance measurement reporting data cannot be specified at the time of activation. After the activation, the tracking control parameters of the user equipment network performance measurement cannot be modified, and the data reporting mode in the tracking control parameter cannot be modified, and the system load problem using the Immediate MDT reporting data cannot be solved. Summary of the invention

In view of this, the main object of the present invention is to provide a load control method and apparatus for user equipment network performance measurement, which are used to solve the problem of OAM system load control in user equipment network performance measurement.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A load control method for user equipment network performance measurement, comprising:

When performing user equipment network performance measurement, the OAM system detects the current system load in real time, and determines the tracking control parameters used when the user equipment network performance measurement is activated according to the current load condition of the OAM system, and the decision is made during the execution of the measurement task. Whether to change the tracking control parameters of the user equipment.

Further, the method further includes:

The OAM system sends the tracking control parameter of the decision to the user equipment to be activated by activating the measurement message; transmitting the tracking control parameter of the decision to the activated user equipment by changing the tracking control parameter message; the activation measurement message and the change tracking The control parameter message includes a report data mode attribute and/or a measurement period attribute.

Further, the method further includes:

The OAM system determines that the current system load is overloaded, and rejects the activation request of the user equipment network performance measurement in the real-time (Mm) MDT reporting data mode.

Further, the step of the OAM system changing the tracking control parameters of the user equipment according to the current system load includes:

When the OAM system detects that the current system load exceeds a preset upper limit of the normal load threshold, the OAM system sends a change tracking control parameter message one by one to the activated user equipment to indicate the user equipment. Change the data mode to Logged MDT mode and/or increase the measurement period until the load falls within the preset normal load threshold.

When the OAM system detects that the current system load is lower than the preset normal load threshold lower limit, the OAM system sends a change tracking control parameter message to the one or more activated measurement user equipments, indicating that the load is within a preset normal load threshold range. Inside.

Based on the above method, the present invention also provides a load control device for measuring network performance of a user equipment, the device comprising:

a monitoring module for detecting the current load of the OAM system in real time;

a decision module, configured to determine, according to a current load of the OAM system, a tracking control parameter of the user equipment to be activated or that has been activated by the user equipment network performance measurement;

An activation module, configured to activate user equipment network performance measurement according to a tracking control parameter of the decision module decision;

And an execution module, configured to change, according to the tracking control parameter of the decision module decision, a tracking control parameter of the user equipment that has been activated by the user equipment network performance measurement.

Further, the activation module sends the tracking control parameter of the decision to the user equipment to be activated by activating the measurement message; transmitting the tracking control parameter of the decision to the activated user equipment by changing the tracking control parameter message; And the change tracking control parameter message includes a report data mode attribute and/or a measurement period attribute.

Further, the decision module rejects the activation request of the activation module of the user equipment network performance measurement by the MDT system when the OAM system is overloaded.

Further, the execution module includes:

a first execution module, configured to: when the current system load exceeds a preset load threshold upper limit, The decision module decision result sends a change tracking control parameter message to the activated user equipment, indicating that the user equipment changes the reporting data mode to the Logged MDT mode and/or increases the measurement period until the load is reduced to a preset normal load threshold. Within the scope;

a second execution module, configured to: when the current system load is lower than a preset load threshold lower limit, send a change tracking control parameter message to the one or more user devices that activate measurement according to the decision result of the decision module, indicating the user equipment Convert the reported data mode to Immediate MDT mode and / or reduce the measurement cycle until the load is within the preset normal load threshold.

In the present invention, the 0 AM system detects the current system load in real time, and decides to activate or change the tracking control parameters of the user equipment network performance measurement according to the current system load condition, and can control the system load by adding a reporting data mode to the tracking control parameter. The attribute, instructs the user equipment to change the corresponding tracking control parameters to achieve the purpose of controlling the OAM system load. The invention realizes the load control of the OAM on the user equipment network performance measurement, and improves the efficiency and flexibility of the user equipment network performance measurement. DRAWINGS

1 is a flowchart of a load control method for network performance measurement of a user equipment according to the present invention; FIG. 2 is a flowchart of changing a network performance measurement tracking control parameter of a user equipment according to the present invention; FIG. 3 is a load control method for network performance measurement of a user equipment according to the present invention; Flow chart of the device. detailed description

The basic idea of the present invention is: the tracking control parameter used by the OAM system to specify the network performance measurement of the user equipment before activation, and the OAM system changes the tracking control parameters of the user equipment according to the current load condition after activation to solve the OAM load control problem.

The present invention will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a flow chart of a load control method for user equipment network performance measurement according to the present invention The specific steps are as follows:

Step 101: The OAM system configures a tracking task, and activates user equipment network performance measurement by manual mode or automatic mode;

The operator can select the automatic or manual mode when activating the user equipment network performance measurement. In the automatic mode, the OAM system determines the tracking control parameter of the UE when the activation is performed according to the current system load, and the tracking data parameter is added to the reporting data mode attribute and/or The measurement period, the activation measurement message (eg, RRC Connection Reconfiguration message) sent to the UE, includes the tracking control parameters. After receiving the activation measurement message, the UE performs the tracking measurement process according to the tracking control parameter, and reports the measurement data by using the reporting data mode and the measurement period specified in the tracking control parameter; in the manual mode, the tracking control parameter of the user equipment network performance measurement Set by the operator, the reporting data mode and/or the measurement period are also included in the tracking control parameter and sent to the UE. When the UE receives the activation measurement message, the tracking measurement process is performed according to the tracking control parameter, and the tracking control parameter is specified in the tracking control parameter. The reported data method and the measurement period report the measurement data.

Further, when the OAM system determines that the current system load is overloaded, that is, the load exceeds the upper limit of the preset load threshold, the user equipment network performance measurement activation request for reporting the data in the Immediate MDT mode may be denied.

Step 102: During the measurement process, the 0 AM system detects the current system load in real time. If the 0 AM system detects that the current system load exceeds the preset normal load threshold, and the OAM system cannot process the measurement data reported by the UE in time, step 103 is performed. Otherwise, step 104 is performed;

Step 103: The OAM system sends a change tracking control parameter message to the UE one by one through the Element Management System (EMS) until the load falls within a normal load threshold, and the change tracking control parameter message carries the data. Mode attribute and/or measurement period attribute, and specify the reported data mode attribute value as Logged MDT mode and/or specify a larger measurement period attribute value;

The change tracking control parameter message can be sent through an extended existing protocol message, for example The RRC connection reconfiguration message (RRC Connection Reconfiguration), the tracking session update message, and the like may also be sent by adding a signaling message; wherein, the tracking control parameter is carried, and the reporting data mode attribute and/or the measurement period attribute are added in the tracking control parameter. .

The method of reporting the measured data from the activated user device is changed from the Immediate MDT mode to the Logged MDT mode, or the measurement period attribute is increased to reduce the amount of data reported by the user terminal to reduce the load on the OAM system.

Step 104: When the OAM system detects that the current system load is lower than the lower limit of the normal load threshold, the UE may change the one or more activated user equipment network performance measurement by transmitting the change tracking control parameter message by using the automatic control mode or the manual control mode. Tracking control parameters, and specifying the reported data mode attribute value as Immediate MDT mode and/or specifying a smaller measurement period attribute value until the load of the OAM system is within the preset normal load threshold.

When using the automatic control mode, according to a certain strategy, for example, the system load is kept below the normal load threshold lower limit within the preset time, and the change tracking control parameter message is automatically sent to the UE, for example, the change is activated and the Logged MDT mode is being used. The data reporting method of the UE that reports the measurement data is changed from the Logged MDT mode to the Immediate MDT mode on the 4 bar. In the manual control mode, the operator manually changes the specified one or more activated user equipment network performance measurements. The data reporting mode of the UE changes the reporting mode from the Logged MDT mode to the Immediate MDT mode.

Changing the method of reporting the measured data from the activated user device from the Logged MDT mode to the Immediate MDT mode or reducing the measurement period attribute can increase the data amount of the measurement data reported by the user terminal per unit time, thus increasing the load on the OAM system.

The Evolved Packet Core (EPC) system is used as an example to send a change tracking control parameter message to the UE that activates the user equipment network performance measurement by the network element management system in step 103 and step 104, instructing the UE to change the report measurement data. The steps of the way are described in detail, as shown in Figure 2, the detailed steps are as follows: Step 201: The ΟΑΜ system sends a tracking session update message to a Home Subscriber Server (HSS) through an Element Management System (EMS), where the message includes a tracking control parameter, and the tracking control parameter includes the reported data. Mode attribute.

Step 202: The HSS updates the locally saved tracking session tracking control parameter.

Step 203: The HSS sends an update user data message to a Mobility Manange Entity (MME), where the message includes the tracking session information of the tracked UE and the tracking control parameter information.

Step 204: The MME updates the locally saved tracking session tracking control parameter.

Step 205: The MME sends a tracking session update message to the eNodeB.

Step 206: The eNodeB updates the locally saved tracking session tracking control parameter.

Step 207: The eNodeB sends a tracking session update message to the UE.

Step 208: The UE updates the locally saved tracking session tracking control parameter, and changes the reporting data mode according to the reported data mode attribute in the tracking control parameter.

Step 209, the UE returns a tracking session update message response to the eNodeB;

If the UE changes the reporting data mode successfully, the tracking session update success response is fed back to the eNodeB; otherwise, the tracking session update failure response or the timeout failure response message is fed back to the eNodeB.

Step 210: When the eNodeB receives the tracking session update failure response or the timeout failure response message, the eNodeB sends a tracking session update message failure notification to the tracking data collection entity (TCE).

FIG. 3 is a schematic structural diagram of a load control apparatus 300 for measuring network performance of a user equipment according to the present invention. The apparatus includes:

The monitoring module 301 is configured to detect the current load of the OAM system in real time;

The decision module 302 is configured to: according to the current load of the OAM system, determine a tracking control parameter of the user equipment to be activated or has been activated to measure the performance of the user equipment network; and the tracking control parameter includes a reporting data mode attribute. When the OAM system load exceeds the preset upper limit of the normal load threshold, The decision module may reject the activation module to activate the activation request of the user equipment network performance measurement in the Immediate MDT manner to prevent the system load from further increasing.

The activation module 303 is configured to activate user equipment network performance measurement according to the tracking control parameter of the decision module decision;

The execution module is configured to change, according to the tracking control parameter of the decision module decision, the tracking control parameter of the user equipment that has been activated by the user equipment network performance measurement, so that the load of the OAM system is within a preset normal load threshold.

The activation module sends the tracking control parameter of the decision to the user equipment to be activated by activating the measurement message; transmitting the tracking control parameter of the decision to the activated user equipment by changing the tracking control parameter message; the activation measurement message and the change tracking The control parameter message includes a report data mode attribute and/or a measurement period attribute.

The execution module further includes: a first execution module 304, a second execution module 305, and a first execution module, configured to: when the current system load exceeds a preset load threshold upper limit, according to the decision result of the decision module to the activated measurement The user equipment sends a change tracking control parameter message one by one, instructing the user equipment to change the reporting data mode to the Logged MDT mode and/or increase the measurement period until the load falls within a preset normal load threshold range;

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A load control method for user equipment network performance measurement, comprising: performing an operation management and maintenance (OAM) system to detect a current system load in real time when performing user equipment network performance measurement, and according to the current OAM system The load situation decision activates the tracking control parameters used in the user equipment network performance measurement, and determines whether the tracking control parameters of the user equipment need to be changed during the execution of the measurement task.

The method according to claim 1, wherein the method further comprises: sending, by the activation measurement message, the tracking control parameter of the decision to the user equipment to be activated; and changing the tracking control parameter message by The tracking control parameter of the decision is sent to the activated user equipment; the activation measurement message and the change tracking control parameter message include a report data mode attribute and/or a measurement period attribute.

The method according to claim 2, wherein the method further comprises: when the OAM system determines that the current system load is overloaded, rejecting the real-time use of the Immediate (Immediate)

MDT) An activation request for network performance measurement of the user equipment on the data mode.

4. The method according to claim 2, wherein the step of changing the tracking control parameter of the user equipment according to the current system load by the OAM system comprises:

When the OAM system detects that the current system load exceeds the preset upper limit of the normal load threshold, the OAM system sends a change tracking control parameter message to the activated user equipment, indicating that the user equipment changes the data mode to a log (Logged MDT) mode and / or increase the measurement cycle until the load falls within the preset normal load threshold.

The method according to claim 2, wherein the step of changing the tracking control parameter of the user equipment according to the current system load by the OAM system comprises:

When the OAM system detects that the current system load is lower than a preset lower limit of the normal load threshold, the OAM system sends a change tracking control parameter message to the one or more activated measurement user equipments, and the indication is used. The load is within the preset normal load threshold.

6. A load control device for measuring network performance of a user equipment, characterized in that the device comprises:

The device according to claim 6, wherein the activation module sends the tracking control parameter of the decision to the user equipment to be activated by activating the measurement message; and sending the tracking control parameter of the decision by changing the tracking control parameter message For the activated user equipment; the activation measurement message and the change tracking control parameter message include a report data mode attribute and/or a measurement period attribute.

8. Apparatus according to claim 6 wherein:

The decision module refuses to activate the module to activate the activation request of the user equipment network performance measurement in the MDT mode when the OAM system is overloaded.

The device according to claim 7, wherein the execution module comprises: a first execution module, configured to: when the current system load exceeds a preset load threshold upper limit, according to the decision result of the decision module is activated The measured user equipment sends a change tracking control parameter message one by one, instructing the user equipment to change the reporting data mode to the Logged MDT mode and/or increase the measurement period until the load falls within a preset normal load threshold;

a second execution module, configured to: when the current system load is lower than a preset load threshold lower limit, Sending a change tracking control parameter message to the one or more user equipments that activate the measurement according to the decision result of the decision module, instructing the user equipment to convert the reporting data mode to the Immediate MDT mode and/or reduce the measurement period until the load is in advance Set within the normal load threshold.