WO2012031552A1

WO2012031552A1 - Instruction method, device and system for mdt measurement

Info

Publication number: WO2012031552A1
Application number: PCT/CN2011/079407
Authority: WO
Inventors: 刘爱娟; 王彦; 赵瑾波; 傅婧
Original assignee: 电信科学技术研究院
Priority date: 2010-09-07
Filing date: 2011-09-07
Publication date: 2012-03-15
Also published as: CN102404782A

Abstract

Disclosed are an instruction method, device and system for MDT measurement, so as to improve the MDT measurement mechanism in the prior art. The method is: after an MME determines that a UE accesses a cell managed by an eNB, sending MDT measurement configuration parameters to the eNB, the eNB judging whether the UE is within a specified MDT measurement range; if yes, delivering the MDT measurement configuration parameters, and if no, not delivering the MDT measurement configuration parameters. In this way, when a UE meeting an OAM selection condition is not in the specified MDT measurement range, the eNB may not deliver the MDT measurement configuration parameters, so as to reduce signaling overhead; when the UE moves into the specified MDT measurement range, the eNB delivers the MDT measurement configuration parameters to the UE, so as to ensure that the UE can perform MDT measurement and report in time, thereby ensuring the system performance and quality of service. Meanwhile, the present invention provides a corresponding device and system.

Description

The invention provides a Chinese patent for the indication method, device and system of the MDT measurement, which is submitted to the Chinese Patent Office on September 7, 2010, and the application number is 201010276271.1. Priority of the application, the entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the field of communications, and in particular, to an indication method, apparatus, and system for MDT measurement. Background technique

In the future mobile communication system, it is hoped that by introducing a network self-optimization mechanism, the manual participation of network planning and operation and maintenance is reduced, and the network automatically optimizes parameters according to statistics to reduce network construction and operation costs. At present, in order to reduce the operation and maintenance cost of the network, it is desirable to take the method of reporting the network configuration user equipment (UE) to reduce the manual road test work. On the other hand, it is also desirable to obtain the wireless measurement of the area that cannot be reached by the ordinary road test. information. In the R10 protocol of the Long Term Evolution (LTE) system, the architecture of the Minimization Drive Test (MDT) control plane has been determined. The advantage of this architecture is that the evolved base station (eNB) can accurately control. UE. The control plane architecture needs to use the RRC Radio Resource Control (RRC) signaling to carry the parameters configured by the UE to the UE and the information reported by the UE to the network.

Under the prior art, there are two types of MDT measurement classification:

Immediately upload (MMT): MDT measurement and uploading when the UE is in the connected state. The multiplexed radio resource management (RRM) measurement format is used to report the eNB/RNC immediately after the reporting condition is met.

Logged MDT: The MDT measurement performed when the UE is in the idle state, and is reported when it is in the connected state. Once the configured trigger condition is met, the measurement result will be obtained and stored (log), at the appropriate time. Reported to the eNB/RNC.

The relevant configuration parameters of the MDT measurement are divided into a cell-based MDT measurement configuration parameter and a UE-based MDT measurement configuration parameter.

Referring to FIG. 1, the transmission mode of the UE-based MDT measurement configuration parameter is: MME can Obtain UE-related MDT measurement configuration parameters (including Immediate MDT and Logged MDT) from HSS. These MDT measurement configuration parameters can be a set of International Mobile Subscriber Identity (IMSI) and International Mobile Equipment Identification Code and (IMEI). It can be a geographical range (such as tracking area (TA), cell list, etc.;]. The MME sends the obtained MDT measurement configuration parameters to the corresponding UEs through the eNB according to a preset configuration policy.

Currently, the process of sending MDT measurement configuration parameters to the UE is: During the UE registration process, the HSS determines the operation and maintenance (OAM) entity according to the IMSI and IMEI list for performing MDT measurement. If the UE performs the MDT measurement, the MDT measurement configuration parameter is sent to the MME attached to the UE, and then the MME may be in the initial context setup request message if it determines that the UE resides in the measured geographic range of the MDT. The MDT measurement configuration parameter is sent to the eNB to which the UE is attached. After receiving the initial context setup request message, the eNB determines that the Logged MDT measurement configuration parameter is used to send the Logged MDT measurement configuration parameter to the UE by using a new RRC signaling. If the Immediate MDT measurement configuration parameter is used, the MIT CONNECTION RECONFIGURATION message is sent to the UE.

When the UE initially accesses the network, the MME may determine that the UE resides in the measured geographic range of the MDT according to information such as the serving cell of the UE that is saved by the MME, but for the UE. If the handover occurs, the MME is not aware of the handover between the internal cells of the same base station. Therefore, if the serving cell currently attached to the UE is not within the measurement range of the MDT, the MDT measurement configuration needs to be performed at this time, and the MME cannot know, and is unable to know. control. Of course, there is no provision in the protocol for the case where the UE does not reside in the measurement range of the MDT. Therefore, it is necessary to further improve the content of the agreement. Summary of the invention

The embodiment of the present invention provides an indication method for MDT measurement, which is used to improve the existing MDT measurement mechanism, and implement corresponding processing operations based on the MDT measurement range indication where the UE is located.

The specific technical solutions provided by the embodiments of the present invention are as follows: An indication method for MDT measurement, comprising:

The MME determines that the UE accesses the jurisdiction of the base station;

The MME acquires a preset MDT measurement configuration parameter;

And sending, by the MME, the MDT measurement configuration parameter to the base station, and instructing the base station to send the MDT measurement configuration parameter to the UE when the UE is determined to be in the specified MDT measurement range, to notify the UE to The received MDT measurement configuration parameters are used for MDT measurement.

An indication method for MDT measurement, including:

The base station determines that the UE accesses the local jurisdiction cell;

The base station acquires a preset MDT measurement configuration parameter from the mobility jurisdiction entity MME; the base station sends the MDT measurement configuration parameter to the UE, and notifies the UE, when determining that the UE is located in the specified MDT measurement range. The MDT measurement is performed based on the received MDT measurement configuration parameters.

A device for MDT measurement indication, comprising:

a determining unit, configured to determine a jurisdiction that the UE accesses the base station;

An acquiring unit, configured to acquire a preset MDT measurement configuration parameter;

a communication unit, configured to send the MDT measurement configuration parameter to the base station, and instruct the base station to send the MDT measurement configuration parameter to the UE when determining that the UE is located in the specified MDT measurement range, to notify the The UE performs MDT measurement based on the received MDT measurement configuration parameters.

A device for MDT measurement indication, comprising:

a determining unit, configured to determine that the UE accesses the local jurisdiction cell;

An acquiring unit, configured to acquire a preset MDT measurement configuration parameter from the mobility jurisdiction entity MME, where the communication unit is configured to send the MDT measurement configuration parameter to the UE when determining that the UE is located in the specified MDT measurement range, Notifying the UE to perform based on the received MDT measurement configuration parameters

MDT measurement.

A system for MDT measurement indication, comprising:

The MME is configured to: when the UE accesses the jurisdiction of the base station, obtain the preset MDT measurement configuration parameter, and send the MDT measurement configuration parameter to the base station, indicating that the base station is determining the UE bit. Transmitting the MDT measurement configuration parameter to the UE, and informing the UE to perform MDT measurement based on the received MDT measurement configuration parameter, when the specified MDT measurement range is performed;

And the base station is configured to: when the UE accesses the local jurisdiction, obtain the preset MDT measurement configuration parameter from the MME, and send the MDT measurement configuration parameter to the location when determining that the UE is in the specified MDT measurement range. The UE notifies the UE to perform MDT measurement based on the received MDT measurement configuration parameters.

In order to improve the existing MDT measurement mechanism, in the embodiment of the present invention, after determining that the UE accesses the jurisdiction of the eNB, the MME sends the MDT measurement configuration parameter to the eNB, and the eNB determines whether the UE is located in the specified MDT measurement range, and if so, The MDT measurement configuration parameters are sent. Otherwise, the MDT measurement configuration parameters are not sent. In this way, when the UE that meets the OIMS-selected IMSI and IMEI conditions is not within the specified MDT measurement range, the eNB may not send the MDT measurement configuration parameter to save signaling overhead and reduce system resource consumption, and when the UE moves to the specified In the MDT measurement range, the eNB then sends the MDT measurement configuration parameters to the UE to ensure that the UE can perform MDT measurement in time and ensure that the network side can receive accurate MDT measurement results in time, thereby ensuring system performance and service quality. . DRAWINGS

1 is a structural diagram of a communication system in an embodiment of the present invention;

2 is a schematic structural diagram of a function of an MME according to an embodiment of the present invention;

3 is a schematic structural diagram of an eNB function according to an embodiment of the present invention;

FIG. 4 is a flowchart of the MDT measurement parameter sent by the MME to the UE by using the eNB in the embodiment of the present invention. detailed description

In order to improve the existing MDT measurement mechanism, the corresponding processing operation is performed based on the MDT measurement range indication of the UE. In the embodiment of the present invention, the mobility management entity (MME) determines that the UE accesses the jurisdiction of the base station, and acquires the preset MDT. Measure configuration parameters, and send the MDT measurement configuration parameters to the base station, indicating that the base station obtains when determining that the UE is in the specified MDT measurement range. The MDT measurement configuration parameter is sent to the UE, and the UE is notified to perform MDT measurement based on the received MDT measurement configuration parameter. Since the base station can obtain location information such as the serving cell information of the UE, the base station can determine, according to the location information of the UE, whether the UE resides within the measured geographic range of the MDT. Correspondingly, the base station determines that the UE accesses the local jurisdiction cell, and obtains the preset MDT measurement configuration parameter from the MME, and sends the obtained MDT measurement configuration parameter to the UE when determining that the UE is in the specified MDT measurement range. Notifying the UE to perform an MDT measurement based on the received MDT measurement configuration parameters.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , in the embodiment of the present invention, a system for an MDT measurement indication includes an MME and a plurality of base stations, where

The MME is configured to: when the UE accesses the jurisdiction of the base station, obtain the preset MDT measurement configuration parameter from the HSS, and send the MDT measurement configuration parameter to the base station, and indicate that the base station determines that the UE is located in the specified MDT measurement range. And sending the obtained MDT measurement configuration parameter to the UE, and notifying the UE to perform MDT measurement based on the received MDT measurement configuration parameter;

And the base station is configured to: when the UE accesses the local jurisdiction cell, obtain the preset MDT measurement configuration parameter from the MME, and send the obtained MDT measurement configuration parameter to the UE when determining that the UE is in the specified MDT measurement range. Notifying the UE to perform MDT measurement based on the received MDT measurement configuration parameters.

Referring to FIG. 2, in the embodiment of the present invention, the MME includes a determining unit 20, an obtaining unit 21, and a communication unit 22, where

a determining unit 20, configured to determine, by the UE, a jurisdiction that accesses the base station;

The acquiring unit 21 is configured to acquire preset MDT measurement configuration parameters from the HSS;

The communication unit 22 is configured to send the MDT measurement configuration parameter to the foregoing base station, and instruct the base station to send the obtained MDT measurement configuration parameter to the UE when determining that the UE is located in the specified MDT measurement range, and notify the UE to receive the The MDT measures configuration parameters for MDT measurements.

Referring to FIG. 3, in an embodiment of the present invention, a base station (eNB) includes a determining unit 30, an obtaining unit 31, and a communication unit 32, where a determining unit 30, configured to determine that the UE accesses a local jurisdiction cell;

The obtaining unit 31 is configured to obtain a preset MDT measurement configuration parameter from the mobility jurisdiction entity MME. The communication unit 32 is configured to send the obtained MDT measurement configuration parameter to the UE when determining that the UE is located in the specified MDT measurement range. Notifying the UE to perform based on the received MDT measurement configuration parameters

MDT measurement.

In an actual application, if the UE has activated the MDT configuration when the UE is attached to the network, that is, when the UE establishes a connection with the eNB on the network side, the MME sends the MDT measurement configuration parameter acquired from the HSS. To the eNB, the eNB determines whether the MDT measurement configuration parameter is to be sent to the UE. If the OMT has not been activated by the OAM when the UE is attached to the network, after the UE establishes a connection with the eNB on the network side, during the connection hold period, when the OAM activates the MDT configuration, the HSS uses the Insert subscriber data message. The MDT measurement configuration parameter is sent to the MME, and the MME sends the MDT measurement configuration information to the eNB, and the eNB determines whether to send the MDT measurement configuration parameter to the UE. When the UE establishes a connection with the eNB on the network side, or during the connection hold period after the UE establishes a connection with the eNB on the network side, the UE can be regarded as the jurisdiction cell of the UE accessing the eNB. In the following embodiments, the previous one A case will be described as an example.

Based on the foregoing system architecture, in the embodiment of the present invention, the OAM configures a user identification list (ie, IMSI and IMEI) list, which is used to specify the UE participating in the MDT measurement, and the geographical area that specifies the MDT measurement, that is, the UE in the request list is Perform MDT measurements and collect MDT data while in Tracking Cell 1 (TAI1). It is assumed that, in the embodiment of the present invention, the UE resides in the eNB1, and the eNB1 is not in the range of the TAI1, then the UE cannot perform the MDT measurement at this time, and the UE initiates the handover to the eNB2 as the UE moves, and the eNB2 is in the TAI1. In the range, the UE can receive the MDT measurement configuration parameters sent by the network side and perform MDT measurement.

As shown in FIG. 4, in the embodiment of the present invention, the detailed process of the UE accessing the eNB1 that is not in the MDT measurement range is as follows:

Step 400: The element management system (EMS) sends the MDT measurement configuration parameter (MDT configuraiton) to the HSS.

The EMS is part of OAM, and in this embodiment, it can be regarded as OAM. Step 401: The UE sends an RRC Connection Setup Request message, that is, an RRC CONNECTION SETUP PROCEDURE message, to the eNB1 to establish an RRC connection with the eNB1.

Step 402: The eNB1 sends initial UE information, that is, an Initial UE message, to the MME.

When receiving the initial UE information, the MME determines that the UE accesses the jurisdiction cell of the eNB1.

Step 403: The MME sends a location update request message, that is, an Update location request message, to the HSS.

The purpose of the MME to send a Location Update Request message is to request the HSS to update the location of the UE in the network. Step 404: The HSS returns a location update response message, that is, an Update location answer message, to the MME.

The location update response message returned by the HSS to the MEE carries the MDT measurement configuration parameters delivered by the EMS.

Step 405: The MME sends an initial UE content establishment indication message, that is, an Initial UE context setu message, to the eNB1.

The initial UE content establishment indication message sent by the MME carries the MDT measurement configuration parameter obtained from the HSS.

Step 406: The eNB1 determines whether the UE is in the specified measurement area according to the obtained MDT measurement configuration parameter. In this embodiment, because the eNB1 is not in the range of TAI1, and the UE is attached to the eNB1, the UE is not in the range of the TAI1.

Step 407: The eNB1 does not send the MDT measurement configuration parameters sent by the HSS to the UE, but assists the UE to directly connect to the MME.

As shown in FIG. 4, in the process of performing a service connection, since the UE is in a mobile state, the UE is handed over to the eNB2 by the eNB1, and the handover may be a handover through the X2 interface or a handover through the S1 interface. Assume that eNB2 is in the range of TAI1, then eNB2 needs to request the MDT measurement configuration parameter of the UE from the MME, and instructs the UE to perform MDT measurement. The detailed procedure is as follows: Step 408: eNB2 sends a path switch request message to the MME, that is, Path Switch request message.

The MME determines, according to the route switching request message, that the UE accesses the jurisdiction cell of the eNB2. Step 409: The MME sends a path switch response message, that is, a Path switch response message, to the eNB2.

The MME carries the MDT measurement configuration parameter delivered by the HSS in the path switch response message.

In this embodiment, the MDT measurement configuration parameters include: a geographic range (which may be a TA or a cell, etc.) in which the MDT measurement needs to be performed, and a measurement parameter to be reported by the specified UE (including periodic downlink pilot measurement, a service cell) One or any combination of information such as a measurement period used for periodic measurement, etc., which becomes worse than a set threshold, and the like.

In an actual application, the MME may send the MDT measurement configuration parameter to the UE through the handover signaling of the S1 interface, such as a handover path switching response (ath switch response message) or a handover request (handover request) message, or may be specially formulated. The S1 interface message sends the MDT measurement configuration parameter to the eNB1 and sends it to the enb. The above step 409 is only described by taking the path switch response message as an example, and other implementation manners are not excluded.

Step 410: The eNB2 determines whether the UE is in the specified measurement area according to the obtained MDT measurement configuration parameter. In this embodiment, because the eNB2 is in the range of ΤΑΠ, the UE is attached to the eNB2, and therefore, the UE is also in the range of TAI1.

Step 411: The eNB2 sends the MDT measurement configuration parameter to the UE, and instructs the UE to perform MDT measurement based on the obtained MDT measurement configuration parameter and return the measurement result.

The eNB2 may send the MDT measurement configuration parameter of the UE to the UE through a specially formulated RRC message (LOG MDT) or an RRC CONNECTION RECONFIGURATION message. Preferably, the Logged MDT measurement is sent through a specially formulated RRC message. The configuration parameter is sent by the RRC connection re-establishment request message to the Immediate MDT measurement configuration parameter to instruct the UE to perform MDT measurement.

In the existing protocol, only the delivery path of the MDT measurement configuration parameters is: OAM->HSS->MME->eNB->UE, and there is no way to deliver the MDT measurement configuration parameters when the UE is not in the MDT measurement range. In order to improve the existing MDT measurement mechanism, in the embodiment of the present invention, after determining that the UE accesses the jurisdiction of the eNB, the MME sends the MDT measurement configuration parameter to the eNB, and the eNB determines whether the MDT measurement configuration parameter needs to be Send to UE, preferably, eNB If the UE is in the specified MDT measurement range, if yes, the MDT measurement configuration parameter is sent. Otherwise, the MDT measurement configuration parameter is not sent. In this way, when the UE that meets the OIMS-selected IMSI and IMEI conditions is not within the specified MDT measurement range, the eNB may not send the MDT measurement configuration parameter to save signaling overhead and reduce system resource consumption, and when the UE moves to the specified In the MDT measurement range, the eNB then sends the MDT measurement configuration parameters to the UE to ensure that the UE can perform MDT measurement and reporting in time to ensure that the network side can receive accurate MDT measurement results in time, thereby ensuring system performance and service. quality.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is applicable to one or more computer usable storage media (including but not limited to disk storage, including computer usable program code,

The form of a computer program product implemented on a CD-ROM, optical storage, etc.).

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowcharts and/or block diagrams, and combinations of flow and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram. The spirit and scope of the Ming. Thus, it is intended that the present invention cover the modifications and the modifications of the invention

Claims

Rights request

1. A method for minimizing a road test MDT measurement, characterized in that it comprises:

The mobility management entity MME determines that the user terminal UE accesses the jurisdiction of the base station;

The MME acquires a preset MDT measurement configuration parameter;

2. The method according to claim 1, wherein the MME determines that the UE accesses the jurisdiction of the base station, and includes:

The MME determines, according to the notification of the base station, that the UE initially accesses the jurisdiction cell of the base station; or the MME determines, according to the notification of the base station, that the UE switches to the jurisdiction cell of the base station.

The method according to claim 2, wherein the MME determines, based on the notification of the base station, that the UE switches to the jurisdiction of the base station, and uses the S1 interface-based handover signaling, or The MDT measurement configuration parameters are sent to the base station using a specially formulated S1 interface message.

The method according to claim 1, 2 or 3, wherein the MDT measurement configuration parameter includes a geographical range in which MDT measurement is required, a measurement parameter to be reported by the specified UE, and a measurement used in periodic measurement. One or any combination of the cycles.

5. A method for minimizing a road test MDT measurement, characterized in that:

The base station determines that the user terminal UE accesses the local jurisdiction cell;

The method according to claim 5, wherein the determining, by the base station, that the UE accesses the local jurisdiction cell includes:

The base station determines that the UE initially accesses the local jurisdiction cell; or the base station determines that the UE handover accesses the local jurisdiction cell.

The method according to claim 6, wherein the base station determines that the UE switches to access the local jurisdiction cell, through the S1 interface-based handover signaling, or through the specially-defined S1 interface message. Receiving MDT measurement configuration parameters sent by the MME.

The method according to claim 5, 6 or 7, wherein the base station uses the specially formulated RRC message or sends the MDT measurement configuration parameter to the RRC connection re-establishment request message. UE.

The method according to claim 5, 6 or 7, wherein the MDT measurement configuration parameters include a geographical range in which MDT measurement is required, a measurement parameter to be reported by the specified UE, and a measurement used in periodic measurement. One or any combination of the cycles.

A device for minimizing a drive test MDT measurement indication, comprising: a determining unit, configured to determine a jurisdiction cell in which a user terminal UE accesses a base station;

The device according to claim 10, wherein the determining unit determines that the UE accesses the jurisdiction of the base station, and includes:

The determining unit determines, according to the notification of the base station, that the UE initially accesses the jurisdiction cell of the base station; or the determining unit determines, according to the notification of the base station, that the UE switches to the jurisdiction cell of the base station.

The device according to claim 11, wherein the determining unit determines, according to the notification of the base station, that the UE switches to the jurisdiction cell of the base station, the communication unit uses a switching signal based on the S1 interface. Or, the MDT measurement configuration parameter is sent to the base station by using a specially formulated S1 interface message.

A device for minimizing a drive test MDT measurement indication, comprising: a determining unit, configured to determine that a user terminal UE accesses a local jurisdiction cell;

An acquiring unit, configured to acquire a preset MDT measurement configuration parameter from the mobility jurisdiction entity MME, where the communication unit is configured to: when determining that the UE is located in the specified MDT measurement range, The quantity configuration parameter is sent to the UE, and the UE is notified to perform MDT measurement based on the received MDT measurement configuration parameter.

The device according to claim 13, wherein the determining unit determines that the UE accesses the local jurisdiction cell, and includes:

The determining unit determines that the UE initially accesses the local jurisdiction cell; or the determining unit determines that the UE switches to access the local jurisdiction cell.

The device according to claim 14, wherein, when the determining unit determines that the UE handovers to a local jurisdiction cell, the acquiring unit performs handover signaling based on an S1 interface, or The S1 interface message receives the MDT measurement configuration parameter sent by the MME.

The apparatus according to claim 13, 14, or 15, wherein the communication unit sends the MDT measurement configuration parameter to the local device by using a specially formulated RRC message or by using an RRC connection re-establishment request message. Said UE.

A system for minimizing a drive test MDT measurement indication, comprising: a mobility management entity MME, configured to determine a preset MDT measurement configuration parameter when a user terminal UE accesses a jurisdiction of a base station, And sending the MDT measurement configuration parameter to the base station, instructing the base station to send the MDT measurement configuration parameter to the UE when the UE is determined to be in the specified MDT measurement range, and notify the UE to receive the The MDT measurement configuration parameter is used to perform MDT measurement; the base station is configured to: when determining that the UE accesses the local jurisdiction cell, acquire preset MDT measurement configuration parameters from the MME, and when determining that the UE is located in the specified MDT measurement range, The MDT measurement configuration parameter is sent to the UE, and the UE is notified to perform MDT measurement based on the received MDT measurement configuration parameter.