JP2012222666A - Mobile communication method, wireless base station, and mobile station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To immediately suspend "Immediate MDT" which is performed by a mobile station UE owned by a user, upon cancellation of his/her approval for MDT.SOLUTION: The mobile communication method comprises: a step in which a mobile station UE in a "Connected state", upon cancellation of approval for performing MDT, transmits to a network an approval change notification which indicates the cancellation; a step in which the network instructs the mobile station UE in the "Connected state" to remove a "Measurement Configuration" in response to the approval change notification; and a step in which the mobile station UE removes the "Measurement Configuration" and suspends measurement of the prescribed radio quality in response to the instruction.

Description

  The present invention relates to a mobile communication method, a radio base station, and a mobile station.

  In the LTE (Long Term Evolution) method, by collecting measurement results of predetermined radio quality in a real environment from the mobile station UE, the labor and cost by the driving test (Driving Test) is reduced “MDT (Minimization of Drive Tests, "Measurement running test)" is defined.

  Among such MDTs, in “Immediate MDT”, the mobile station UE measures a predetermined radio quality with respect to the network by “Measurement Report” according to “Measurement Configuration” for the current RRM (Radio Resource Management). It is configured to report the result and location information (Location Information) of the mobile station UE.

3GPP 37.320 3GPP 37.331

  Here, since the “Immediate MDT” is not a service for the mobile station UE, in order for the mobile station UE to perform the “Immediate MDT”, the user who owns the mobile station UE needs to consent. is there.

  At present, the network manages the consent status by the user, and is configured to control whether or not to cause the mobile station UE to perform “Immediate MDT” according to the consent status.

  However, in the conventional mobile communication system, when the consent to MDT is canceled by the user, “Immediate MDT” performed by the mobile station UE owned by the user cannot be immediately stopped. It was.

  Therefore, the present invention has been made in view of the above-described problem, and when the consent to MDT is canceled by the user, the “Immediate MDT” performed by the mobile station UE owned by the user is immediately performed. It is an object to provide a mobile communication method, a radio base station, and a mobile station that can be stopped.

  A first feature of the present invention is a mobile communication method, in which a network instructs a mobile station in a connected state, which has consented to perform a measurement driving test, to measure a predetermined radio quality. Step A for transmitting configuration information, and the mobile station in the connected state measures the predetermined radio quality according to the measurement configuration information, and the measurement result of the predetermined radio quality and the mobile station for the network Step B for transmitting the location information, and Step C for transmitting the change notification of the approval to the network when the mobile station in the connected state has canceled the approval for the execution of the measurement driving test. The network D instructing the mobile station in the connected state to delete the measurement configuration information in response to the consent change notification, and the mobile station in the connected state Responsive to the instruction to delete the measurement configuration information, and summarized in that a step E to stop the measurement of the predetermined radio quality.

  According to a second aspect of the present invention, there is provided a wireless base station, and measurement configuration information for instructing a mobile station in a connected state for which a measurement traveling test is approved to measure a predetermined wireless quality. A transmitter configured to transmit, the transmitter configured to move the connected state when the connected mobile station detects that the consent to the implementation of the measurement running test has been revoked. The gist is that it is configured to instruct the station to delete the measurement configuration information.

  A third feature of the present invention is a mobile station, which is configured to manage whether or not the approval for the measurement driving test is performed, and the mobile station is in a connected state. In some cases, when consent to the implementation of the measurement driving test is made, and when measurement configuration information instructing to measure a predetermined radio quality is received from the network, according to the measurement configuration information, A measurement running test function unit configured to measure the predetermined radio quality and transmit the measurement result of the predetermined radio quality and the position information of the mobile station to the network; If the station is in a connected state and the consent to the execution of the measurement driving test has been revoked, the measurement driving test function unit shall indicate to the network to that effect. When the mobile station is in a connected state and is instructed to delete the measurement configuration information from the network, the measurement running test function unit is configured to transmit a further notification. Is summarized in that the measurement configuration information is deleted and the measurement of the predetermined radio quality is stopped.

  As described above, according to the present invention, when the consent to MDT is canceled by the user, the mobile communication that can immediately stop “Immediate MDT” performed by the mobile station UE owned by the user. A method, a radio base station, and a mobile station can be provided.

1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention. FIG. 3 is a functional block diagram of a mobile station according to the first embodiment of the present invention. FIG. 3 is a functional block diagram of a radio base station according to the first embodiment of the present invention. FIG. 3 is a sequence diagram showing an operation of the mobile communication system according to the first embodiment of the present invention. FIG. 3 is a sequence diagram showing an operation of the mobile communication system according to the first embodiment of the present invention.

(Mobile communication system according to the first embodiment of the present invention)
A mobile communication system according to a first embodiment of the present invention will be described with reference to FIG. 1 to FIG.

  As shown in FIG. 1, the mobile communication system according to the present embodiment includes a subscriber information management server HSS (Home Subscriber Server), a mobility management node MME (Mobility Management Entity), and an LTE wireless access network device. And a radio base station eNB.

  As shown in FIG. 2, the mobile station UE according to the present embodiment includes a Consent management unit 11 and an MDT function unit 12.

  The Consent management unit 11 is configured to manage whether or not consent is given to the implementation of MDT.

  For example, the Consent management unit 11 is a function in the application layer, and the user can set whether or not to consent to the implementation of MDT via the Consent management unit 11.

  The MDT function unit 12 is a function in an AS (Access Stratum) layer, and is configured to perform processing related to MDT.

  Specifically, the MDT function unit 12 instructs the mobile station UE to measure the predetermined radio quality from the network when the mobile station UE is in the “Connected state” and has been approved for the implementation of MDT. Is configured to perform “Immediate MDT” in response to the “Measurement Configuration” when the “Measurement Configuration” is received, that is, the predetermined radio quality is measured and the network is configured to perform the “Measurement Configuration”. The measurement result of the predetermined radio quality and the location information of the mobile station UE are transmitted.

  Further, when the mobile station UE is in the “Connected state” and the consent to the implementation of MDT is canceled, the MDT function unit 12 transmits a Consent change notification indicating that to the network. It is configured as follows.

  Further, when the mobile station UE is in the “Connected state” and instructed to delete or change “Measurement Configuration” from the network, the MDT function unit 12 deletes the “Measurement Configuration”. Or, it is configured to stop the implementation of “Immediate MDT”, that is, to stop the measurement of the predetermined radio quality described above.

  Further, when the MDT function unit 12 is instructed to change “Measurement Configuration” from the network, the MDT function unit 12 may report a measurement result of the predetermined radio quality of the changed content.

  Specifically, the MDT function unit 12 takes the “Measurement Configuration” for “Immediate MDT”, that is, when “Measurement Configuration” that requires reporting of “Location Information” is set from the network. When it is instructed to change “Measurement Configuration” to “Measurement Configuration” for Mobility, that is, “Measurement Configuration” that does not require reporting of “Location Information”, “Cancel Immediate Implementation MDT” It is configured.

  Even if the mobile station UE stops the execution of “Immediate MDT”, that is, after stopping the measurement of the predetermined radio quality described above, the Concent management unit 11 May be configured to remember that consent to the implementation of MDT has not been made.

  In addition, when the mobile station UE performs the Attach process after performing the Detach process, the MDT function unit 12 is configured not to notify the network that it has the capability related to MDT. It may be.

  As illustrated in FIG. 3, the radio base station eNB includes a reception unit 21, a content management unit 22, and a transmission unit 23.

  The receiving unit 21 is configured to receive various signals from the mobile station UE and the mobility management node MME. For example, the receiving unit 21 is configured to receive “UE Context Modification” including “Concent status update notification” from the mobility management node MME.

  The Consent management unit 22 is configured to manage whether or not each mobile station UE has consented to the implementation of MDT.

  The transmission unit 23 is configured to transmit various signals to the mobile station UE and the mobility management node MME.

  For example, the transmission unit 23 is configured to transmit “RRC Connection Reconfiguration” instructing addition, deletion, or change of “Measurement Configuration” for “Immediate MDT” to the mobile station UE.

  Hereinafter, an example of the operation of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIG. 4 and FIG.

  Specifically, with reference to FIG. 4 and FIG. 5, in the mobile communication system according to the first embodiment of the present invention, the mobile station UE that has been approved for the implementation of MDT has the consent for the implementation of MDT. The operation when canceling will be described.

  As shown in FIG. 4, the mobile station UE has consented to the implementation of MDT, and “Measurement Configuration” related to “Immediate MDT” is received from the network. Therefore, in step S1001, “Mobile MDT” is received. We are carrying out.

  When the mobile station UE detects in step S1002 that the user has canceled the consent to the implementation of MDT, in step S1003, the mobile station UE transmits a Concent change notification indicating that to the mobility management node MME.

  In step S1004, the mobility management node MME transmits the Consent change notification to the subscriber information management server HSS. In step S1005, the subscriber information management server HSS transmits the subscriber information (particularly, the mobile station UE). , The approval status of the MDT implementation in the mobile station UE is updated, and a “Consent status update notification” indicating that the approval of the MDT implementation is canceled in the mobile station UE is transmitted to the mobility management node MME.

  In step S1006, the mobility management node MME transmits “UE Context Modification” including the “Consent status update notification” to the radio base station eNB.

  In Step S1007, the radio base station eNB transmits “RRC Connection Reconfiguration” instructing the mobile station UE to delete “Measurement Configuration” for “Immediate MDT” in response to the “UE Context Modification”. .

  In step S1008, the mobile station UE deletes the “Measurement Configuration” for “Immediate MDT” in response to the “RRC Connection Reconfiguration”, and stops the implementation of “Immediate MDT”.

  After that, as shown in FIG. 5, in step S2001, the mobile station UE stores that the above-described MDT implementation has not been approved even when the Detach process is performed.

  In step S2002, the mobile station UE transmits “RRC Connection Request” to the radio base station eNB. In step S2003, the radio base station eNB transmits “RRC Connection Setup” to the mobile station UE. To do.

  In step S20044, the mobile station UE transmits “RRC Connection Setup Complete” including “NAS Attach Request” including “AS UE Capability” to the radio base station eNB.

  Here, since the mobile station UE has not consented to the implementation of MDT, the ability to implement “Logged MDT” and the ability to acquire location information for MDT as “AS UE Capability”. Even when the MDT-related capability is provided, the network is not notified that the MDT-related capability is provided.

  That is, in such a case, the mobile station UE transmits “RRC Connection Setup Complete” including “AS UE Capability” that does not include the above-described capability related to MDT to the radio base station eNB.

  In step S2005, the radio base station eNB transmits “Initial Context Setup Request” including “NAS Attach Request” including “AS UE Capability” to the mobility management node MME.

  Here, the “AS UE Capability” does not include the above-mentioned capability related to MDT.

  In step S2006, the mobility management node MME transmits “Initial Context Setup Response” including “NAS Accept” including “AS UE Capability” to the radio base station eNB.

  Here, the “AS UE Capability” does not include the above-mentioned capability related to MDT.

  In step S2007, since the radio base station eNB does not include the above-mentioned MDT-related capability in the “AS UE Capability” included in the “NAS Accept” in the received “Initial Context Setup Response”, the mobile station “RRC Connection Reconfiguration” instructing the UE to add “Measurement Configuration” for “Immediate MDT” is not transmitted.

  According to the invention according to the present embodiment, when the consent to MDT is canceled by the user, the radio base station eNB sends “Measurement Configuration” for “Immediate MDT” to the mobile station UE owned by the user. Since “RRC Connection Reconfiguration” instructing to delete “Immediate” is transmitted, “Immediate MDT” performed by the mobile station UE can be stopped immediately.

  The characteristics of the present embodiment described above may be expressed as follows.

  A first feature of the present embodiment is a mobile communication method, in which a network is connected to a mobile station UE in a “Connected state (connected state)” for which the MDT (measurement running test) is approved. The step A for transmitting “Measurement Configuration (measurement configuration information)” instructing to measure the predetermined radio quality, and the mobile station UE in the “Connected state” measures the predetermined radio quality according to the “Measurement Configuration”. When the mobile station UE in the “Connected state” cancels the consent to the implementation of the MDT, the process B for transmitting the measurement result of the predetermined radio quality and the location information of the mobile station UE to the network is canceled. Concent change notification to that effect A process C for transmitting (consent change notification), and a process D instructing the mobile station UE in the “Connected state” to delete the “Measurement Configuration” in response to the Consent change notification. And “Measurement Configuration” includes a step E of deleting “Measurement Configuration” and canceling the above-described measurement of the predetermined radio quality in response to the instruction.

  In the first feature of the present embodiment, even when the mobile station UE performs a Detach process after the above-described Step E is performed, the consent to the implementation of the above-described MDT has not been made. You may further have the process F which memorize | stores this.

  In the first feature of the present embodiment, when the mobile station UE performs an Attach process after the above-described Step F is performed, the capability related to the above-described MDT (AS UE) You may further have the process G which does not notify that it has Capability.

  The second feature of the present embodiment is the radio base station eNB, which instructs the mobile station UE in the “Connected state” that has consented to the implementation of MDT to measure the predetermined radio quality. When the transmission unit 23 is configured to transmit “Measurement Configuration”, and the transmission unit 23 detects that the mobile station UE in the “Connected state” has canceled the consent to the implementation of the MDT described above. The gist is that the mobile station UE in the “Connected state” is configured to instruct the mobile station UE to delete the “Measurement Configuration” described above.

  The third feature of the present embodiment is that the mobile station UE is configured to manage whether or not the consent to the implementation of MDT has been made, and the content management unit 11 (consent management unit), and the mobile station When the UE is in the “Connected state”, has consented to the implementation of MDT, and receives “Measurement Configuration” instructing to measure a predetermined radio quality from the network, this “ According to “Measurement Configuration”, the MDT function unit 12 (measurement travel) is configured to measure the predetermined radio quality and transmit the measurement result of the predetermined radio quality and the location information of the mobile station UE to the network. Test function unit), and the mobile station UE When it is in the “Connected state” and the consent to the implementation of MDT is cancelled, the MDT function unit 12 is configured to transmit a Consent change notification indicating that to the network, When the mobile station UE is in the “Connected state” and instructed to delete the “Measurement Configuration” from the network, the MDT function unit 12 deletes the “Measurement Configuration” and The gist is that the measurement of the predetermined radio quality is stopped.

  In the third feature of the present embodiment, even if the mobile station UE performs the Detach process after stopping the above-described measurement of the predetermined radio quality, the Consent management unit 11 does not consent to the implementation of MDT. You may be comprised so that it may be memorize | stored not being made.

  In the third feature of the present embodiment, when the mobile station UE performs the Attach process after performing the Detach process, the MDT function unit 12 has the capability related to MDT (AS UE Capability) for the network. It may be configured not to notify that it is provided.

  The operations of the mobile station UE, the radio base station eNB, the mobility management node MME, and the subscriber information management server HSS described above may be performed by hardware or may be performed by a software module executed by a processor. It may be implemented by a combination of both.

  The software module includes a RAM (Random Access Memory), a flash memory, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electronically Erasable and Programmable ROM, a Hard Disk, a Registered ROM, a Hard Disk Alternatively, it may be provided in a storage medium of an arbitrary format such as a CD-ROM.

  Such a storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE, the radio base station eNB, the mobility management node MME, or the subscriber information management server HSS. Further, the storage medium and the processor may be provided as a discrete component in the mobile station UE, the radio base station eNB, the mobility management node MME, or the subscriber information management server HSS.

  Although the present invention has been described in detail using the above-described embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

UE ... mobile station eNB ... radio base station MME ... mobile management node HSS ... subscriber information management server 11, 22 ... Consent management unit 12 ... MDT function unit 21 ... receiving unit 23 ... transmitting unit

Claims (7)

A step of transmitting measurement configuration information instructing a network to measure a predetermined radio quality to a mobile station in a connected state for which the network has been approved to perform a measurement running test;
A step B in which the connected mobile station measures the predetermined radio quality according to the measurement configuration information, and transmits the measurement result of the predetermined radio quality and the location information of the mobile station to the network; ,
When the mobile station in the connected state cancels the consent to the execution of the measurement driving test, the process C transmits an approval change notification indicating the fact to the network; and
The network instructing the mobile station in the connected state to delete the measurement configuration information in response to the consent change notification;
The mobile communication method, comprising: a step E in which the connected mobile station deletes the measurement configuration information and stops the measurement of the predetermined radio quality according to the instruction.   After the step E is performed, the mobile station further includes a step F for storing that the consent to the execution of the measurement running test is not made when the mobile station performs a detach process. Mobile communication method.   After the step F is performed, the mobile station further includes a step G of not notifying the network that the mobile station has the capability related to the measurement running test when performing the attach process. The mobile communication method according to claim 2. A transmission unit configured to transmit measurement configuration information instructing to measure a predetermined radio quality to a mobile station in a connected state for which an acceptance for the measurement running test is performed;
The transmitting unit deletes the measurement configuration information for the mobile station in the connected state when the mobile station in the connected state detects that the consent to the execution of the measurement running test has been canceled. A radio base station configured to direct. A mobile station,
A consent management unit configured to manage whether or not the consent to the measurement driving test is performed;
When the mobile station is in a connected state, when consent to the implementation of the measurement driving test is made, and when receiving measurement configuration information instructing to measure a predetermined radio quality from the network, A measurement running test function unit configured to measure the predetermined radio quality according to the measurement configuration information and transmit the measurement result of the predetermined radio quality and the position information of the mobile station to the network. It has
When the mobile station is in a connected state and the consent to the execution of the measurement driving test is canceled, the measurement driving test function unit sends an approval change notification indicating the fact to the network. Configured to send,
When the mobile station is in a connected state and instructed to delete the measurement configuration information from the network, the measurement traveling test function unit deletes the measurement configuration information, and A mobile station, characterized in that it is configured to stop measuring radio quality.   When the mobile station performs a detach process after stopping the measurement of the predetermined radio quality, the approval management unit stores that the approval for the execution of the measurement running test is not made. The mobile station according to claim 5, wherein the mobile station is configured.   When the mobile station performs the attach process after performing the detach process, the measurement travel test function unit notifies the network that it has the capability related to the measurement travel test. The mobile station according to claim 6, wherein the mobile station is configured not to operate.

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