JP2011078022A - Mobile communication method, radio base station, and exchange - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a mobile station UE to perform handover to a cell under a radio base station HeNB2 operated by "Hybrid" without having a radio base station eNB acquire the access mode #1 of the radio base station HeNB2. <P>SOLUTION: The mobile communication method includes: a step of notifying the exchange MME of the CSG-ID=#31 and access mode #1 of the radio base station HeNB2 when the radio base station HeNB2 establishes an S1 connection with the exchange MME; and a step of storing the CSG-ID=#31 and the access mode #1 in association with each other in a management unit 32 by the exchange MME. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

  In a LTE (Long Term Evolution) mobile communication system defined by 3GPP, a radio base station HeNB (Home eNB) that can operate in any of “Open”, “Closed”, and “Hybrid” is provided. Can do.

  A radio base station HeNB (or cell, hereinafter the same) operating in “Open” can provide mobile communication services to both registered and unregistered mobile stations in the radio base station HeNB. It is configured as follows.

  Here, the registered mobile station in the radio base station HeNB is a mobile station UE belonging to the CSG specified by the CSG (Closed Subscriber Group) -ID of the radio base station HeNB, and the unregistered mobile station in the radio base station HeNB is It is a mobile station UE that does not belong to the CSG specified by the CSG-ID of the radio base station HeNB.

  Further, the radio base station HeNB operating in “Closed” is configured to be able to provide a mobile communication service only to registered mobile stations in the radio base station HeNB.

  Further, the radio base station HeNB (or cell) operating in “Hybrid” can provide a mobile communication service by differentiating each of a registered mobile station and an unregistered mobile station in the radio base station HeNB. It is configured to be able to.

  For example, the radio base station HeNB operating in “Hybrid” is configured to preferentially accept a communication start request from a registered mobile station and allocate resources for high-speed communication. You may comprise so that the priority of a communication start request may be lowered | hung or not received.

  Hereinafter, with reference to FIG. 7, the operation when the mobile station UE performs handover to a cell under the radio base station HeNB2 operating in “Hybrid” in the mobile communication system will be described.

  As illustrated in FIG. 7, in step S3001, the mobile station UE performs, for example, PCI (Physical Cell Identity) or E-CGI (E-UTRAN Cell Global Identity) of the radio base station HeNB2, A measurement report (Measurement Report) including CSG-ID = # 31 is transmitted.

  In step S3002, the radio base station eNB sends a handover request signal including identification information (HeNB-ID = yyy.001), CSG-I = # 31, and access mode # 1 to the exchange MME. (HO REQUIRED) is transmitted.

  Note that the radio base station eNB may be configured to acquire the access mode # 1 of the radio base station HeNB2 via the measurement report from the mobile station UE (method 1). Here, the mobile station UE may be configured to grasp the access mode # 1 of the radio base station HeNB2 based on broadcast information transmitted by the radio base station HeNB2.

  Alternatively, the radio base station eNB determines the access mode of the radio base station HeNB2 based on whether or not the radio base station HeNB2 included in the measurement report from the mobile station UE is included in the PCI bit range for “Hybrid”. It may be configured to determine # 1 (method 2). Here, it is assumed that the PCI bit range for “Hybrid” is determined in advance in the network.

  The access mode # 1 indicates that the radio base station HeNB is operating in “Hybrid”.

  In step S3003, the switching center MME receives the CSG-ID = # 31 of the radio base station HeNB2 included in the handover request signal (HO REQUIRED) received from the radio base station eNB and the CSG- of the mobile station UE managed by itself. Based on the ID, it is determined whether the mobile station UE is a registered mobile station or a non-registered mobile station in the radio base station HeNB2, and the radio base included in the handover request signal (HO REQUIRED) received from the radio base station eNB Based on the access mode # 1 of the station HeNB2, it is determined whether or not the radio base station HeNB2 is operating in “Hybrid”.

  When it is determined that the radio base station HeNB2 is operating in “Hybrid” and the mobile station UE is an unregistered mobile station in the radio base station HeNB2, the switching center MME, in step S3004A, the gateway device HeNB-GW , A handover request signal (HO REQUEST) including predetermined information (CSG Member Indication / UE Member Indication Bit) is transmitted, and in step S3004B, the gateway device HeNB-GW performs the handover to the radio base station HeNB2. A request signal (HO REQUEST) is transmitted.

  In step S3005, the radio base station HeNB2 confirms the validity of the CSG-ID # 32 of the radio base station HeNB2 included in the handover request signal (HO REQUEST) received from the gateway device HeNB-GW.

  When the validity of the CSG-ID # 32 of the radio base station HeNB2 is confirmed, the radio base station HeNB2 sends the mobile station UE the predetermined information included in the handover request signal (HO REQUEST). To perform resource allocation processing for unregistered mobile stations.

  In step S3006A, the radio base station HeNB2 transmits a handover request response signal (HO REQUEST ACK) including the above resource allocation result to the gateway device HeNB-GW. In step S3006B, the gateway device HeNB-GW The handover request response signal (HO REQUEST ACK) is transmitted to the exchange MME.

3GPP TS36.300 3GPP TS36.331 3GPP TS 36.413

  As described above, in the conventional mobile communication system, the radio base station eNB needs to acquire the access mode # 1 of the radio base station HeNB2 by the method 1 or the method 2.

  Here, when the radio base station eNB acquires the access mode # 1 of the radio base station HeNB2 by the method 1, the mobile station UE uses the radio base station HeNB2 based on the broadcast information transmitted by the radio base station HeNB2. There is a problem in that it is necessary to grasp the access mode # 1 and the configuration of the mobile station UE is complicated.

  In addition, when the radio base station eNB acquires the access mode # 1 of the radio base station HeNB2 by the method 1, the access mode # of the radio base station HeNB2 is included in a measurement report transmitted from the mobile station UE to the radio base station eNB. 1 had to be included, and there was a problem of increasing the overhead of measurement reporting.

  On the other hand, when the radio base station eNB acquires the access mode # 1 of the radio base station HeNB2 by the method 2, the radio base station eNB uses the radio base station HeNB2 included in the measurement report from the mobile station UE for “Hybrid”. It is necessary to determine whether or not it is included in the bit range of the PCI, and there is a problem that the configuration of the radio base station eNB is complicated.

  Further, when the radio base station eNB acquires the access mode # 1 of the radio base station HeNB2 by the method 2, it is necessary to reserve the PCI bit range for “Hybrid”, which affects the network design of the macro cell. There was a problem.

  Therefore, the present invention has been made in view of the above-described problem, and the mobile station UE operates in “Hybrid” without the radio base station eNB acquiring the access mode # 1 of the radio base station HeNB2. It is an object of the present invention to provide a mobile communication method, a radio base station, and an exchange that can perform a handover to a cell under the radio base station HeNB2.

  A first feature of the present invention is a mobile communication method, in which when the first radio base station establishes a connection with the exchange, the first radio base station Registration group identification information for identifying a group of registered mobile stations, and whether or not it is possible to provide mobile communication services by differentiating each of registered mobile stations and unregistered mobile stations in the first radio base station And a step of notifying the management unit of the registered group identification information and the access mode in association with each other.

  A second feature of the present invention is a mobile communication method, wherein when the first radio base station establishes a connection with the gateway device, the first radio base station Registration group identification information for identifying a group of registered mobile stations, and whether or not it is possible to provide mobile communication services by differentiating each of registered mobile stations and unregistered mobile stations in the first radio base station The step of notifying the access mode shown in the above, the gateway device notifying the switching center of the registration group identification information of the first radio base station and the access mode, and the switching center And a step of associating and storing the registered group identification information and the access mode.

  A third feature of the present invention is a radio base station that registers a group of registered mobile stations in the radio base station with the exchange when establishing a connection with the exchange. It is configured to notify group identification information and an access mode indicating whether or not it is possible to provide a mobile communication service with differentiation for each of a registered mobile station and an unregistered mobile station in the radio base station. The gist is to provide a connection control unit.

  According to a fourth aspect of the present invention, there is provided a radio base station that registers a group of registered mobile stations in the radio base station with the gateway device when establishing a connection with the gateway device. It is configured to notify group identification information and a mode indicating whether it is possible to provide a mobile communication service with differentiation for each of a registered mobile station and an unregistered mobile station in the radio base station. The gist is to provide a connection control unit.

  According to a fifth aspect of the present invention, there is provided a switching station, and registration group identification information for identifying a group of registered mobile stations in the first radio base station when establishing a connection with the first radio base station, and A connection configured to acquire an access mode indicating whether or not a mobile communication service can be provided in a differentiated manner for each of a registered mobile station and an unregistered mobile station in the first radio base station The gist of the invention is that it includes a control unit, and a management unit configured to store the acquired registered group identification information and the access mode in association with each other.

  As described above, according to the present invention, the radio base station eNB does not acquire the access mode # 1 of the radio base station HeNB2, and the mobile station UE is under the control of the radio base station HeNB2 operating in “Hybrid”. It is possible to provide a mobile communication method, a radio base station, and an exchange station that can be handed over to a cell.

1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention. FIG. 2 is a functional block diagram of a radio base station HeNB according to the first embodiment of the present invention. It is a functional block diagram of gateway apparatus HeNB-GW which concerns on the 1st Embodiment of this invention. It is a functional block diagram of the exchange MME which concerns on the 1st Embodiment of this 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. It is a sequence diagram which shows operation | movement of the conventional mobile communication system.

(Configuration of mobile communication system according to the first embodiment of the present invention)
The configuration of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIGS.

  The mobile communication system according to the present embodiment is an LTE mobile communication system, and as shown in FIG. 1, an exchange MME, a radio base station eNB and a radio base station HeNB1 connected to the exchange MME, The gateway device HeNB-GW connected to the exchange MME, and the radio base station HeNB2 and the radio base station HeNB3 connected to the gateway device HeNB-GW are provided.

  Here, the identification information eNB-ID of the radio base station eNB is “zzz.000”, the identification information HeNB-ID of the gateway device HeNB-GW is “yyy.000”, and the identification information HeNB of the radio base station HeNB1 -ID is “xxx.100”, the identification information HeNB-ID of the radio base station HeNB2 is “yyy.001”, and the identification information HeNB-ID of the radio base station HeNB3 is “yyy.002”.

  The CSG-ID of the radio base station HeNB1 is “# 22”, the CSG-ID of the radio base station HeNB2 is “# 31”, and the CSG-ID of the radio base station HeNB3 is “# 32”.

  Furthermore, the access mode of the radio base station HeNB1 is “# 0”, the access mode of the radio base station HeNB2 is “# 1”, and the access mode of the radio base station HeNB3 is “# 0”.

  The access mode # 1 indicates that the radio base station HeNB is operating in “Hybrid”, and the access mode # 0 indicates that the radio base station HeNB is operating in a mode other than “Hybrid”.

  As illustrated in FIG. 2, the radio base stations HeNB1 to HeNB3 (hereinafter, representatively referred to as radio base stations HeNB) include a management unit 11 and an S1 connection control unit 12.

  The management unit 11 is configured to manage the identification information HeNB-ID, CSG-ID, and access mode of the radio base station HeNB.

  The S1 connection control unit 12 is configured to notify the switching center MME of the CSG-ID and access mode of the radio base station HeNB when establishing an S1 connection with the switching center MME.

  Alternatively, the S1 connection control unit 12 notifies the gateway device HeNB-GW of the CSG-ID and the access mode of the radio base station HeNB when establishing the S1 connection with the gateway device HeNB-GW. It is configured.

  Specifically, the S1 connection control unit 12 is configured to transmit “S1 SETUP REQUEST” including the CSG-ID and access mode of the radio base station HeNB to the exchange MME or the gateway device HeNB-GW. ing.

  As illustrated in FIG. 3, the gateway device HeNB-GW includes an S1 connection control unit 21 and a management unit 22.

  The S1 connection control unit 21 is configured to acquire the CSG-ID and access mode of the radio base station HeNB from the radio base station HeNB when establishing the S1 connection with the radio base station HeNB.

  Specifically, the S1 connection control unit 21 is configured to receive “S1 SETUP REQUEST” including the CSG-ID and access mode of the radio base station HeNB from the radio base station HeNB.

  Further, when establishing the S1 connection with the switching center MME, the S1 connection control unit 21 sets the CSG-ID and access mode of one or more radio base stations HeNB under its control to the switching center MME. Configured to notify.

  Specifically, the S1 connection control unit 21 is configured to transmit “S1 SETUP REQUEST” including the CSG-ID and access mode of one or more radio base stations HeNB under its control to the switching center MME. Has been.

  In addition, the S1 connection control unit 21, when a new subordinate radio base station HeNB is activated in a state where the S1 connection with the exchange MME is established, It is configured to transmit “eNB CONFIGURATION UPDATE” including the CSG-ID of the base station HeNB and the access mode.

  The management unit 22 is configured to manage the identification information HeNB-ID of the gateway device HeNB-GW and the CSG-ID and access mode of one or more subordinate radio base stations HeNB.

  As illustrated in FIG. 4, the switching center MME includes an S1 connection control unit 31, a management unit 32, a handover processing unit 33, and a determination unit 34.

  The S1 connection control unit 31 is configured to acquire the CSG-ID and access mode of the radio base station HeNB when establishing an S1 connection with the radio base station HeNB.

  Specifically, the S1 connection control unit 21 is configured to receive “S1 SETUP REQUEST” including the CSG-ID and access mode of the radio base station HeNB from the radio base station HeNB.

  Further, when establishing the S1 connection with the gateway device HeNB-GW, the S1 connection control unit 31 determines the CSG-ID and access mode of one or more radio base stations HeNB under the gateway device HeNB-GW. Is configured to get.

  Specifically, the S1 connection control unit 21 transmits “S1 SETUP REQUEST” including the CSG-ID and the access mode of one or more radio base stations HeNB under the gateway device HeNB-GW from the gateway device HeNB-GW. It is configured to receive.

  Alternatively, the S1 connection control unit 21 receives “eNB CONFIGURATION UPDATE” including the CSG-ID and the access mode of one or more radio base stations HeNB under the gateway device HeNB-GW from the gateway device HeNB-GW. It is configured.

  The management unit 32 is configured to store the CSG-ID acquired by the S1 connection control unit 21 in association with the access mode.

  Here, the management unit 32 cannot grasp the correspondence between the identification information HeNB-ID and the CSG-ID of the radio base station HeNB under the gateway device HeNB-GW, and the radio under the gateway device HeNB-GW. It only knows the correspondence between the CSG-ID of the base station HeNB and the access mode.

  Based on the CSG-ID of the radio base station HeNB included in the handover request signal (HO REQUIRED) received from the radio base station eNB and the CSG-ID of the mobile station UE managed by itself, the determination unit 34 The UE determines whether the UE is a registered mobile station or a non-registered mobile station in the radio base station HeNB, and the CSG-ID of the radio base station HeNB included in the handover request signal (HO REQUIRED) received from the radio base station eNB And based on the management part 32, it is comprised so that the access mode of the said radio base station HeNB may be determined.

  When it is determined that the mobile station UE is an unregistered mobile station in the radio base station HeNB and the radio base station HeNB is operating in “Hybrid”, the handover processing unit 33 , A handover request signal (HO REQUEST) including predetermined information (CSG Member Indication / UE Member Indication Bit) is transmitted.

(Operation of the mobile communication system according to the first embodiment of the present invention)
With reference to FIG.5 and FIG.6, operation | movement of the mobile communication system which concerns on the 1st Embodiment of this invention is demonstrated.

  First, with reference to FIG. 5, an operation when the radio base stations HeNB1 to HeNB3 are activated in the mobile communication system according to the first embodiment of the present invention will be described.

  As illustrated in FIG. 5, in step S1001A, the radio base station HeNB2 includes “S1 SETUP including CSG-ID = # 31 and access mode # 1 of the radio base station HeNB2 with respect to the gateway device HeNB-GW at the time of activation. REQUEST "is transmitted.

  Similarly, in step S1002A, the radio base station HeNB3 transmits “S1 SETUP REQUEST” including the CSG-ID = # 32 of the radio base station HeNB3 and the access mode # 0 to the gateway device HeNB-GW at the time of activation. To do.

  In step S1003A, the gateway device HeNB-GW sends the CSG-ID = # 31 and access mode # 1 of the radio base station HeNB2 and the CSG-ID = # 32 and access mode # of the radio base station HeNB3 to the exchange MME. “S1 SETUP REQUEST” including 0 is transmitted.

  Here, the switching center MME stores CSG-ID = # 31 and access mode # 1 in association with each other, and stores CSG-ID = # 32 and access mode # 0 in association with each other.

  In step S1003B, the switching center MME transmits “S1 SETUP RESPONSE” to the gateway device HeNB-GW. In step S1001B, the gateway device HeNB-GW transmits the “S1 SETUP to the radio base station HeNB2. RESPONSE "is transmitted, and in step S1002B, the gateway device HeNB-GW transmits the" S1 SETUP RESPONSE "to the radio base station HeNB3.

  On the other hand, in step S1004A, the radio base station HeNB1 transmits “S1 SETUP REQUEST” including the CSG-ID = # 22 of the radio base station HeNB1 and the access mode # 0 to the exchange MME at the time of activation.

  Here, the switching center MME stores CSG-ID = # 22 and access mode # 0 in association with each other, and transmits “S1 SETUP RESPONSE” to the radio base station HeNB1 in step S1004B.

  2ndly, with reference to FIG. 6, operation | movement at the time of the mobile station UE handing over with respect to the cell under radio | wireless base station HeNB2 in this mobile communication system is demonstrated.

  As illustrated in FIG. 6, in step S2001, the mobile station UE transmits a measurement report including, for example, PCI, E-CGI, and CSG-ID = # 31 of the radio base station HeNB2 to the radio base station eNB. .

  In step S1002, the radio base station eNB sends a handover request signal (HO REQUIRED) including identification information (HeNB-ID = yyy.001) and CSG-I = # 31 of the radio base station HeNB2 to the exchange MME. Send. Here, the radio base station eNB does not need to acquire the access mode # 1 of the radio base station HeNB2.

  In step S1003, the switching center MME receives the CSG-ID = # 31 of the radio base station HeNB2 included in the handover request signal (HO REQUIRED) received from the radio base station eNB and “CSG-ID in the“ UE CSG Subscription info ”. Based on the CSG-ID of the mobile station UE managed in the “list”, it is determined whether the mobile station UE is a registered mobile station or an unregistered mobile station in the radio base station HeNB2.

  Further, the switching center MME refers to the management unit 32, and stores the radio stored in association with the CSG-ID = # 31 of the radio base station HeNB2 included in the handover request signal (HO REQUIRED) received from the radio base station eNB. The access mode # 1 of the base station HeNB2 is acquired.

  Here, when the switching base station MME determines that the radio base station HeNB2 is operating in “Hybrid” and the mobile station UE is an unregistered mobile station in the radio base station HeNB2, in step S2004A, the gateway apparatus A handover request signal (HO REQUEST) including predetermined information (CSG Member Indication / UE Member Indication Bit) is transmitted to the HeNB-GW, and in step S2004B, the gateway apparatus HeNB-GW transmits to the radio base station HeNB2 The handover request signal (HO REQUEST) is transmitted.

  In step S2005, the radio base station HeNB2 confirms the validity of the CSG-ID # 32 of the radio base station HeNB2 included in the handover request signal (HO REQUEST) received from the gateway device HeNB-GW.

  When the validity of the CSG-ID # 32 of the radio base station HeNB2 is confirmed, the radio base station HeNB2 sends the mobile station UE the predetermined information included in the handover request signal (HO REQUEST). To perform resource allocation processing for unregistered mobile stations.

  In step S2006A, the radio base station HeNB2 transmits a handover request response signal (HO REQUEST ACK) including the above resource allocation result to the gateway device HeNB-GW. In step S2006B, the gateway device HeNB-GW The handover request response signal (HO REQUEST ACK) is transmitted to the exchange MME.

(Operations and effects of the mobile communication system according to the first embodiment of the present invention)
According to the mobile communication system according to the first embodiment of the present invention, when the S1 connection between the radio base station HeNB (or the gateway device HeNB-GW) and the exchange MME is established, the exchange MME Since the mobile station UE is configured to notify the correspondence between the CSG-ID of the radio base station HeNB and the access mode, the mobile station UE changes from the cell under the radio base station eNB to the cell under the radio base station HeNB. When handing over, the radio base station eNB does not need to acquire the access mode of the radio base station HeNB.

  As a result, there is no need for the mobile station UE to grasp the access mode # 1 of the radio base station HeNB2 based on the broadcast information transmitted by the radio base station HeNB2, and the configuration of the mobile station UE is complicated Can be eliminated.

  In addition, the mobile station UE needs to include the access mode # 1 of the radio base station HeNB2 in the measurement report transmitted to the radio base station eNB, which can solve the problem of increasing the overhead of the measurement report.

  Alternatively, the radio base station eNB needs to determine whether or not the radio base station HeNB2 included in the measurement report from the mobile station UE is included in the PCI bit range for “Hybrid”. It is possible to solve the problem of complicating the configuration.

  Further, since it is necessary to reserve the PCI bit range for “Hybrid”, the problem of affecting the network design of the macro cell can be solved.

  Moreover, it is not necessary to change the message content of the handover request signal (HO REQUIRED) transmitted from the radio base station eNB to the exchange MME.

  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 when the radio base station HeNB2 (first radio base station) establishes an S1 connection with the exchange MME, Then, CSG-ID = # 31 of radio base station HeNB2 (registered group identification information for identifying a group of registered mobile stations in the first radio base station), and of registered mobile stations and unregistered mobile stations in radio base station HeNB2 The step of notifying the access mode # 1 indicating whether or not it is possible to provide a mobile communication service in a differentiated manner, and the switching center MME sends the CSG-ID # 31 and the access mode # to the management unit 32. And a step of storing the information in association with one another.

  The second feature of the present embodiment is a mobile communication method, in which when the radio base station HeNB2 establishes an S1 connection with the gateway device HeNB-GW, a radio is transmitted to the gateway device HeNB-GW. The step of notifying the CSG-ID = # 31 and access mode of the base station HeNB2, and the gateway device HeNB-GW sends the CSG-ID = # 31 and access mode # 1 of the radio base station HeNB2 to the switching center MME. The gist is that the notifying step and the switching center MME have a step of storing the CSG-ID # 31 and the access mode # 1 in the management unit 32 in association with each other.

  In the first and second features of the present embodiment, the mobile station UE transmits the identification information (eNB-ID = yyy.001) of the radio base station HeNB2 to the radio base station eNB (second radio base station) and In response to the measurement report (Measurement Report) including CSG-ID = # 31 and the measurement report received from the mobile station UE by the radio base station eNB, the radio base station HeNB2 A step of transmitting a handover request signal (HO REQUIRED) including identification information (HeNB-ID = yyy.001) and CSG-ID = # 31, and a handover request signal (HO received by the mobile switching center MME from the radio base station eNB) Mobile station UE managed by the CSG-ID = # 31 of the radio base station HeNB2 included in the REQUIRED) Based on the CSG-ID of the mobile station UE, it is determined whether the mobile station UE is a registered mobile station or a non-registered mobile station in the radio base station HeNB2, and is included in the handover request signal (HO REQUIRED) received from the radio base station eNB A step of determining the access mode of the radio base station HeNB2 based on the CSG-ID = # 31 and the management unit 32 of the radio base station HeNB2, and the mobile station UE is unregistered in the radio base station HeNB2 When it is determined that the wireless base station HeNB2 is operating in “Hybrid” (can provide a mobile communication service with differentiation for each of a registered mobile station and an unregistered mobile station) For the radio base station HeNB2, predetermined information (CSG Member Indication / UE Mem a handover request signal (HO REQUEST) including the er Indication Bit), and the radio base station HeNB2 receives predetermined information (CSG Member Indication / included in the handover request signal (HO REQUEST) received from the switching center MME. And a step of performing resource allocation processing for the unregistered mobile station on the mobile station UE based on UE Member Indication Bit).

  A third feature of the present embodiment is the radio base station HeNB2, and when establishing an S1 connection with the exchange MME, the CSG-ID = # of the radio base station HeNB2 is sent to the exchange MME. 31 and the S1 connection control unit 12 configured to notify the access mode # 1.

  The fourth feature of the present embodiment is the radio base station HeNB2, and when establishing an S1 connection with the gateway device HeNB-GW, the CSG of the radio base station HeNB2 is established with respect to the gateway device HeNB-GW. The gist is to include the S1 connection control unit 12 configured to notify ID = # 31 and access mode # 1.

  The fifth feature of the present embodiment is the exchange MME, and when establishing the S1 connection with the radio base station HeNB2, the CSG-ID = # 31 and the access mode # 1 of the radio base station HeNB2 are set. It comprises an S1 connection control unit 31 configured to acquire, and a management unit 32 configured to store the acquired CSG-ID = # 31 and access mode # 1 in association with each other. And

  In the fifth feature of the present embodiment, the CSG-ID = # 31 of the radio base station HeNB2 included in the handover request signal (HO REQUIRED) received from the radio base station eNB and the CSG of the mobile station UE managed by itself -Based on the ID, it is determined whether the mobile station UE is a registered mobile station or a non-registered mobile station in the radio base station HeNB2, and the radio included in the handover request signal (HO REQUIRED) received from the radio base station eNB Based on the CSG-ID = # 31 of the base station HeNB2 and the management unit 32, the determination unit 34 configured to determine the access mode # 1 of the radio base station HeNB2, and the mobile station UE in the radio base station HeNB2 It is an unregistered mobile station and the radio base station HeNB2 is operating in “Hybrid” A handover processing unit 33 configured to transmit a handover request signal (HO REQUEST) including predetermined information (CSG Member Indication / UE Member Indication Bit) to the radio base station HeNB2, May further be provided.

  The operations of the radio base station HeNB, the switching center MME, the gateway device HeNB-GW, and the mobile station UE described above may be implemented by hardware or may be implemented by a software module executed by a processor. , Or 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 registerable 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 radio base station HeNB, the exchange MME, the gateway device HeNB-GW, and the mobile station UE. In addition, the storage medium and the processor may be provided as a discrete component in the radio base station HeNB, the exchange MME, the gateway device HeNB-GW, and the mobile station UE.

  Although the present invention has been described in detail using the above-described embodiment, it is obvious for those skilled in the art that the present invention is not limited to the embodiment described in the present 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. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

HeNB ... Radio base station HeNB-GW ... Gateway device MME ... Exchanges 11, 22, 32 ... Management units 12, 21, 31 ... S1 connection control unit 33 ... Handover processing unit 34 ... determination unit

Claims (7)

When the first radio base station establishes a connection with the exchange, the registration group identification information for identifying a group of registered mobile stations in the first radio base station to the exchange, and Notifying an access mode indicating whether it is possible to provide a mobile communication service by differentiating each of a registered mobile station and an unregistered mobile station in the first radio base station;
The mobile communication method characterized in that the exchange has a step of storing the registered group identification information and the access mode in association with each other in a management unit. When the first radio base station establishes a connection with the gateway device, the registered group identification information for identifying a group of registered mobile stations in the first radio base station to the gateway device, and Notifying an access mode indicating whether it is possible to provide a mobile communication service by differentiating each of a registered mobile station and an unregistered mobile station in the first radio base station;
The gateway device notifying the switching center of the registered group identification information and the access mode of the first radio base station;
The mobile communication method characterized in that the exchange has a step of storing the registered group identification information and the access mode in association with each other in a management unit. A step of transmitting a measurement report including identification information of the first radio base station and registration group identification information to the second radio base station by the mobile station;
In response to the measurement report received from the mobile station, the second radio base station transmits a handover request signal including identification information and registration group identification information of the first radio base station to the exchange. Process,
Based on the registration group identification information of the first radio base station included in the handover request signal received from the second radio base station and the registration group identification information of the mobile station managed by the switching center, The mobile station determines whether the mobile station is a registered mobile station or an unregistered mobile station in the first radio base station, and the first radio base station included in the handover request signal received from the second radio base station Determining the access mode of the first radio base station based on the registered group identification information and the management unit;
The switching station is a mobile station in which the mobile station is an unregistered mobile station in the first radio base station, and the access mode of the first radio base station is differentiated from each of the registered mobile station and the unregistered mobile station. A step of transmitting a handover request signal including predetermined information to the first radio base station when it is determined that the communication service can be provided;
The first radio base station performing a resource allocation process for an unregistered mobile station on the mobile station based on the predetermined information included in the handover request signal received from the switching center; The mobile communication method according to claim 1 or 2, further comprising: A wireless base station,
When establishing a connection with an exchange, registration group identification information for identifying a group of registered mobile stations in the radio base station and registration mobile stations and non-registers in the radio base station are established for the exchange. A radio base station comprising a connection control unit configured to notify an access mode indicating whether or not each mobile station can provide a mobile communication service in a differentiated manner with respect to each registered mobile station . A wireless base station,
When establishing a connection with a gateway device, registered group identification information for identifying a group of registered mobile stations in the radio base station, and registered mobile stations and non-registers in the radio base station. A radio base station comprising a connection control unit configured to notify an access mode indicating whether or not each registered mobile station can be provided with a mobile communication service in a differentiated manner. When establishing a connection with the first radio base station, registration group identification information for identifying a group of registered mobile stations in the first radio base station, registered mobile stations in the first radio base station, and non-registered mobile stations A connection control unit configured to acquire an access mode indicating whether or not each of the registered mobile stations can provide a mobile communication service in a differentiated manner;
A switching center comprising: a management unit configured to store the acquired registered group identification information and the access mode in association with each other. Based on the registration group identification information of the first radio base station and the registration group identification information of the mobile station managed by itself included in the handover request signal received from the second radio base station, the mobile station It is determined whether the mobile station is a registered mobile station or a non-registered mobile station, and the registration group identification information of the first radio base station included in the handover request signal received from the second radio base station, and A determination unit configured to determine an access mode of the first radio base station based on a management unit;
The mobile station is an unregistered mobile station in the first radio base station, and an access mode of the first radio base station can provide a mobile communication service to each of the registered mobile station and the unregistered mobile station. And a handover processing unit configured to transmit a handover request signal including predetermined information to the first radio base station when it is determined that the first radio base station is indicated. The exchange described in.

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