WO2010074033A1 - 通信システム、フェムトセル用基地局、認証装置、通信方法及び記録媒体 - Google Patents
通信システム、フェムトセル用基地局、認証装置、通信方法及び記録媒体 Download PDFInfo
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- WO2010074033A1 WO2010074033A1 PCT/JP2009/071249 JP2009071249W WO2010074033A1 WO 2010074033 A1 WO2010074033 A1 WO 2010074033A1 JP 2009071249 W JP2009071249 W JP 2009071249W WO 2010074033 A1 WO2010074033 A1 WO 2010074033A1
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- message
- base station
- location registration
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- request
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/12—Mobility data transfer between location registers or mobility servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/02—Inter-networking arrangements
Definitions
- the present invention relates to a technique for performing communication using a femtocell base station.
- the femtocell base station is a small radio base station that covers a narrow communication area with a radius of about several tens of meters.
- the femtocell base station is installed in a room such as a home or an office in order to cover an indoor communication area.
- a room such as a home or an office in order to cover an indoor communication area.
- An existing 3G network (communication system) has been established between users and telecommunications carriers.
- the existing 3G network means a communication network that performs communication via an existing macrocell base station. For this reason, when a new communication system is constructed by improving an existing 3G network in order to introduce a femtocell base station, costs increase and users who use the existing 3G network Various burdens are also imposed on the telecommunications carriers.
- Patent Document 1 There is a document disclosing a technology for accessing IMS via a WLAN / WWAN in which existing related standards are considered (see Patent Document 1).
- Non-Patent Document 1 There is also a document disclosing WLAN authentication technology (see Non-Patent Document 1).
- Patent Document 1 and Non-Patent Document 1 do not describe any technique for introducing a femtocell base station without improving the existing 3G network, and do not suggest the necessity thereof. .
- An object of the present invention is a communication system, a femtocell base station, an authentication device, which can introduce a femtocell base station without improving the existing 3G network (communication system), which is the above-described problem.
- An object is to provide a communication method and a recording medium.
- a communication system includes: A communication system having at least UE (User Equipment) and HLR (Home Location Register) used in an IMS (IP Multimedia subsystem) network, A femtocell base station for constructing a predetermined communication area; Control means for at least controlling communication between the UE and the HLR; The femtocell base station and the control means exist between the UE and the HLR, The femtocell base station is While transmitting the message accepted from the UE to the control means, and having a transmission control means for transmitting the message accepted from the control means to the UE, The control means includes The message received from the femtocell base station is converted into a message recognizable by the HLR, and the message received from the HLR is converted into a message recognizable by the UE.
- UE User Equipment
- HLR Home Location Register
- IMS IP Multimedia subsystem
- the femtocell base station is: A femtocell base station that accepts a message transmitted from a UE, Whether the message received from the UE is a message corresponding to a location registration request of CS (Circuit Switching) service, a message corresponding to a location registration request of PS (Packet Switching) service, or a message corresponding to PDP Activate, And a message corresponding to the specified message is transmitted to the relay apparatus.
- CS Circuit Switching
- PS Packet Switching
- the authentication device includes: Based on the message received from the femtocell base station by the relay device and the subscriber information managed by the management device, the authentication device authenticates the UE, Whether the message received from the relay device is a message corresponding to a PS service location registration request, a CS service location registration request, or a PDP Activate message is specified and specified. Control according to the message.
- the communication method according to the present invention includes: Communication between UE (User Equipment) and HLR (Home Location Register) used in IMS (IP Multimedia Subsystem) network, base station for femtocell that constructs a predetermined communication area, and communication between the UE and the HLR
- Control means for controlling at least, the femtocell base station and the control means is a communication method performed by a communication system existing between the UE and the HLR,
- the femtocell base station sends a message received from the UE to the control means,
- the femtocell base station transmits a message received from the control means to the UE,
- the control means converts the message received from the femtocell base station into a message recognizable by the HLR,
- the control means converts the message received from the HLR into a message that can be recognized by the UE.
- the communication method according to the present invention includes: A communication method performed by a femtocell base station that accepts a message transmitted from a UE, Whether the message received from the UE is a message corresponding to a location registration request of CS (Circuit Switching) service, a message corresponding to a location registration request of PS (Packet Switching) service, or a message corresponding to PDP Activate, And a message corresponding to the specified message is transmitted to the relay apparatus.
- CS Circuit Switching
- PS Packet Switching
- the communication method according to the present invention includes: Based on the message received from the femtocell base station by the relay device and the subscriber information managed by the management device, a communication method performed by the authentication device that authenticates the UE, Whether the message received from the relay device is a message corresponding to a PS service location registration request, a CS service location registration request, or a PDP Activate message is specified and specified. Control according to the message.
- the recording medium according to the present invention is A computer-readable recording medium recording a communication program for causing a femtocell base station to receive a message transmitted from a UE,
- the message received from the UE is a message corresponding to a location registration request for a CS (Circuit Switching) service, a message corresponding to a location registration request for a PS (Packet Switching) service, or PDP Activate.
- the femtocell base station is caused to execute a process of identifying the corresponding message and transmitting the message corresponding to the identified message to the relay apparatus.
- the recording medium according to the present invention is A computer-readable recording medium in which a communication program to be executed by an authentication device that performs authentication of a UE is recorded based on a message received from a femtocell base station by a relay device and subscriber information managed by the management device There,
- the communication program specifies whether the message received from the relay device is a message corresponding to a PS service location registration request, a message corresponding to a CS service location registration request, or a message corresponding to PDP Activate. Then, the authentication apparatus is caused to execute processing for performing control according to the identified message.
- the communication system of the present embodiment includes a UE (User Equipment) 3a-3d and an HLR (Home Location Register) 16 used in an IMS (IP Multimedia subsystem) network, and a femtocell base station ( Femto AP; Femto Access Point) 21a and 21b, and the control unit that controls communication between UE3a-3d and HLR16 and communication between UE3a-3d (PDG22; Packet Data Gateway, AAA23; Authentication Authorization Accounting, HSS26; Home Subscriber Server , P-CSCF24; Proxy-Call Session Control Function and S-CSCF25; Serving-Call Session Control Function) 29.
- PDG22 Packet Data Gateway
- AAA23 Packet Data Gateway
- HSS26 Home Subscriber Server
- P-CSCF24 Proxy-Call Session Control Function and S-CSCF25; Serving-Call Session Control Function
- Control unit 29 can generally be referred to as control means.
- Femtocell base stations (Femto AP) 21a and 21b have the same configuration.
- FIG. 1B is a block diagram showing a femtocell base station (Femto AP) 21a.
- the femtocell base stations (Femto APs) 21a and 21b transmit a message received from any of the UEs 3a to 3d to the control unit 29 (PDG22), and receive the message from the control unit 29 (PDG22).
- the transmission control unit 211 transmits a message to any of the UEs 3a to 3d.
- the control unit 29 (PDG22, AAA23, HSS26, P-CSCF24, S-CSCF25) converts the message received from the femtocell base station (Femto AP) 21a or 21b into a message that the HLR 16 can recognize, The message received from the HLR 16 is converted into a message that can be recognized by the UEs 3a to 3d.
- the transmission control unit 211 can be generally called transmission control means.
- the transmission control unit 211 includes a specifying unit 211a and a transmission unit 211b.
- the identifying unit 211a can be generally referred to as identifying means.
- the identification unit 211a determines whether the message received from the UE 3a or 3b is a message corresponding to a CS (Circuit Switching) service location registration request, a PS (Packet Switching) service location registration request, or PDP Activate The message corresponding to is specified.
- CS Circuit Switching
- PS Packet Switching
- the transmission unit 211b can be generally referred to as transmission means.
- the transmitting unit 211b transmits a message corresponding to the message specified by the specifying unit 211a to the PDG 22 that is a relay device.
- the communication system of the present embodiment includes an existing 3G network 1 and an additional IMS (IP Multimedia subsystem) network 2.
- IMS IP Multimedia subsystem
- the existing 3G network 1 is a known existing 3G network.
- the existing 3G network 1 includes UE (User Equipment) 11a to 11d, Node-B 12a and 12b, RNC (Radio Network Controller) 13a and 13b, MSC (Mobile Services Switching Center) 14, and VLR (Visitor Location Register). 15 and HLR / AuC (Home Location Register / Authentication Center) 16.
- the UEs 11a to 11d, the Node-Bs 12a and 12b, the RNCs 13a and 13b, the MSC 14, the VLR 15, and the HLR / AuC 16 are devices that perform processing compliant with 3GPP. Therefore, specific processing operations of the UEs 11a to 11d, the Node-Bs 12a and 12b, the RNCs 13a and 13b, the MSC 14, the VLR 15, and the HLR / AuC 16 are omitted.
- Additional IMS network 2 includes Femto AP (Access Point) 21a and 21b, PDG (Packet Data Gateway) 22, AAA (Authentication Authorization Accounting) 23, P-CSCF (Proxy-Call Session Control Function) 24, and S -It has CSCF (Serving-Call Session Control Function) 25, HSS (Home Subscriber Server) 26, VLR (Visitor Location Register) 27, and RADIUS (Remote Authentication Dial In User Service) 28.
- PDG Packet Data Gateway
- AAA Authentication Authorization Accounting
- P-CSCF Proxy-Call Session Control Function
- S -It has CSCF (Serving-Call Session Control Function) 25, HSS (Home Subscriber Server) 26, VLR (Visitor Location Register) 27, and RADIUS (Remote Authentication Dial In User Service) 28.
- CSCF Server-Call Session Control Function
- HSS Home Subscriber Server
- VLR Visitor Location Register
- RADIUS Remote
- Femto APs 21a and 21b are small radio base stations that cover a narrow communication area with a radius of about several tens of meters.
- PDG 22 is a relay device that relays messages.
- the PDG 22 receives a message received from the UE 3a by the Femto AP 21a.
- the PDG 22 transmits the message received from the Femto AP 21 a to the AAA 23.
- the P-CSCF 24 and the S-CSCF 25 are included in the communication control device 30.
- the P-CSCF 24 and the S-CSCF 25 are central nodes in the IMS network.
- P-CSCF 24 and S-CSCF 25 perform functions such as session control, management, authentication, and routing using SIP (Session Initiation Protocol).
- the P-CSCF 24 performs security control and SIP signal control between the UEs 3a to 3d and the P-CSCF 24.
- the S-CSCF 25 controls services to the UEs 3a to 3d and controls SIP signals.
- AAA 23 is an authentication device that performs authentication processing between the UEs 3a to 3d and the network.
- FIG. 1C is a block diagram showing AAA23.
- the AAA 23 includes a specifying unit 23a and a control unit 23b.
- the specifying unit 23a can be generally referred to as specifying means.
- the identifying unit 23a identifies, for example, whether the message received from the PDG is a message corresponding to a PS service location registration request, a CS service location registration request, or a PDP Activate message. To do.
- Control unit 23b can be generally referred to as control means.
- the control unit 23b performs control according to the message specified by the specifying unit 23a.
- the HSS 26 is a management device that manages subscriber information of the UEs 3a to 3d used in the IMS.
- the VLR 27 stores the subscriber information of the UEs 3a to 3d.
- the HSS 26 acquires the subscriber information of the UEs 3a to 3d from the HLR / AuC 16.
- the HSS 26 stores the subscriber information of the UEs 3a to 3d in the VLR 27 and manages the subscriber information of the UEs 3a to 3d. Further, the HSS 26 has a function of converting the VLR subscriber data format into the IMS subscriber data format.
- AAA23 authenticates UE3a, for example based on the message from UE3a which PDG22 received from Femto AP21a, and the subscriber information which HSS26 manages.
- the communication control measure 30 controls communication of the Femto AP 21a by SIP when the authentication of the UE 3a is successful in the AAA 23, for example.
- RADIUS 28 performs authentication processing of UEs 3a to 3d.
- the UE 3c After the UE 3c registers the location in the MSC 14 in the existing 3G network 1, and moves into the LA (Location Area) # 3 under the Femto AP 21b in the additional IMS network 2, the UE 3c starts the location registration of the CS service. (Initial location registration). Note that the MSC 14 in the existing 3G network 1 where the UE 3c last registered the location is the OLD MSC. The processing operation when the UE 3c moves to LA # 3 under the Femto AP 21b will be described below. In the following description, it is assumed that IPsec Tunnel (1) is established between the Femto AP 21b and the PDG 22 (step S1).
- UE3c transmits Location Update Request to Femto AP 21b in order to perform update (normal location updating) of LAI (Location Area Information) (step S2).
- the Femto AP 21b When the Femto AP 21b receives the Location Update Request, the Femto AP 21b transmits an IDENTITY Request to the UE 3a (Step S3).
- the UE 3a When the UE 3a receives the IDENTITY Request, the UE 3a transmits an IDENTITY Response including IMSI.UE to the Femto AP 21b (Step S4).
- IMSI.UE is information for specifying UE 3a.
- IKE-SA-INIT is Internet Key Exchange-Security Authentication-INITialise.
- PDG 22 When PDG 22 receives the IKE-SA-INIT Request, it sends an IKE-SA-INIT Response to Femto AP 21b (Step S6).
- the Femto AP 21b When the Femto AP 21b receives the IKE-SA-INIT Response, the Femto AP 21b establishes an IKE SA between the Femto AP 21b and the PDG 22 (step S7).
- the Femto AP 21b transmits an IKE-AUTH Request including both an APN (Access Point Name) and an NAI (Network Access Identifier) to the PDG 22 (Step S8).
- IKE-AUTH is Internet Key Exchange-AUTHentication.
- APN is information for specifying a connection point of a network.
- NAI is information for specifying network access.
- the Femto AP 21b determines that the message received from the UE 3c (Location Update Request) is a message corresponding to the CS service location registration request (CS service location registration request).
- the Femto AP 21 b transmits an IKE-AUTH Request including the NAI indicating “0CS0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname” to the PDG 22.
- “0CS0” is information indicating location registration of the CS service.
- ⁇ UE_IMSI> is information for specifying the UE, and is IMSI.UE in the IDENTITY Response received in step S4.
- “ ⁇ Femto_IMSI>” is information for specifying the Femto AP.
- Dia-EAP is a Diameter-Extensible Authentication Protocol.
- the AAA-EAP-Request (message received from the PDG 22) generates a CS service location registration request (CS service location). Determine whether it is a request corresponding to a registration request), a PS service location registration request (a message corresponding to a PS service location registration request), or a PDP Activate request (a message corresponding to PDP Activate) To do.
- Dia-Wx-MAR is a Diameter-Wx-Multimedia Authentication Request.
- the AAA 23 determines that the Dia-EAP-Request is a CS service location registration request because the NAI indicates “0CS0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname”.
- MAP-SAI MAP-Send Authentication Information.
- [CS] means Circuit Switching.
- the HLR / AuC 16 When the HLR / AuC 16 receives the MAP-SAI [CS], the HLR / AuC 16 obtains the RAND / AUTN / CK / IK / XRES corresponding to the IMSI.UE in the MAP-SAI [CS], and the RAND / AUTN / CK / IK MAP-SAI Ack including / XRES is transmitted to HSS 26 (step S12).
- RAND / AUTN / CK / IK / XRES is information that conforms to 3GPP.
- RAND is Random challenge.
- AUTN is an Authentication Token.
- CK is Cipher Key.
- IK is Integrity Key.
- XRES is Expected RESponse.
- the HLR / AuC 16 transmits a MAP-SAI Ack including RAND / AUTN / CK / IK / XRES (EAP-AKA authentication). However, the HLR / AuC 16 may transmit a MAP-SAI Ack including RAND / AUTN / KC / RES (EAP-SIM authentication).
- the HLR / AuC 16 selects either EAP-AKA authentication (UMTS authentication) or EAP-SIM authentication (GSM authentication) according to the NW capability with which the UE 3c is contracted.
- Dia-Wx-MAA is Diameter-Wx-Multimedia Authentication Answer.
- AAA 23 When AAA 23 receives Dia-Wx-MAA, it transmits Dia-EAP-Answer including RAND / AUTN / CK / IK in Dia-Wx-MAA to PDG 22 (step S14).
- the IKE-AUTH Response including both EAP-Request / AKA-Challenge and RAND / AUTN / CK / IK in the Dia-EAP-Answer is sent to the Femto AP 21b. Transmit (step S15).
- AKA is Authentication and Key Agreement.
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits an Authentication Request including RAND / AUTN in the IKE-AUTH Response to the UE 3c (step S16).
- the UE 3c When the UE 3c receives the Authentication Request, the UE 3c performs an authentication calculation based on the RAND / AUTN in the Authentication Request (Step S17).
- the authentication calculation is performed by a method compliant with 3GPP.
- UE3c calculates RES, and sends Authentication Response including the RES to Femto AP 21b (step S18).
- the calculation of RES is performed by a method compliant with 3GPP.
- the Femto AP 21b When the Femto AP 21b receives the Authentication Response, the Femto AP 21b transmits an IKE-AUTH Request including both EAP-Response / AKA-Challenge and RES in the Authentication Response to the PDG 22 (Step S19).
- the PDG 22 When the PDG 22 receives the IKE-AUTH Request, the PDG 22 calculates a MAC (Message Authentication Code) and transmits a Dia-EAP-Request including both RES and MAC to the AAA 23 (step S20).
- the calculation of the MAC is performed by a method compliant with 3GPP.
- AAA23 will authenticate UE, if Dia-EAP-Request is received (step S21).
- UE authentication is performed by a method compliant with 3GPP.
- AAA23 will transmit Dia-EAP-Answer containing EAP-Success to PDG22, if UE authentication is successful (step S22).
- the PDG 22 When the PDG 22 receives the Dia-EAP-Answer, the PDG 22 transmits a Dia-AA-Request including the APN to the AAA 23 (step S23).
- AAA23 receives Dia-AA-Request, and transmits Dia-AA-Answer containing IMSI.UE to PDG22 (step S24).
- PDG 22 When PDG 22 receives Dia-AA-Answer, it sends IKE-AUTH Response including EAP-Success to Femto AP 21b (step S25).
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits an IKE-AUTH Request to the PDG 22 (step S26).
- the PDG 22 Upon receiving the IKE-AUTH Request, the PDG 22 transmits an IKE-AUTH Response to the Femto AP 21b (Step S27).
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b establishes an IPsec Tunnel (2) between the Femto AP 21b and the PDG 22 (step S28).
- the Femto AP 21b transmits an INFORMATIONAL Request to the PDG 22 (Step S29).
- the PDG 22 When the PDG 22 receives the INFORMATIONAL Request, it sends an INFORMATIONAL Response to the Femto AP 21b (Step S30).
- the PDG 22 transmits a Dia-ST-Request to the AAA 23 (step S31).
- the AAA 23 When the AAA 23 receives the Dia-ST-Request, the AAA 23 transmits a Dia-ST-Answer to the PDG 22 (step S32).
- PDG 22 When PDG 22 receives Dia-ST-Answer, it releases IPsec Tunnel (2) established in step S28 (step S33).
- UE authentication processing is performed in a state where IPsec Tunnel (1) is established between the Femto AP 21b and the PDG 22 in step S1.
- IPsec Tunnel (2) it is not necessary to establish IPsec Tunnel (2) between Femto AP21b and PDG22 established in step S28.
- the processing of step S29 to step S32 is performed, and the IPsec Tunnel (2) established in step S28 is released.
- unnecessary IPsec Tunnel (2) can be released, and resources can be used effectively.
- the Femto AP 21b transmits a SIP-REGISTER including IMSI.UE to the P-CSCF 24 (step S34).
- the P-CSCF 24 When receiving the SIP-REGISTER, the P-CSCF 24 transmits a Dia-Cx-UAR to the HSS 26 (step S35).
- the HSS 26 When receiving the Dia-Cx-UAR, the HSS 26 transmits Dia-Cx-UAA to the P-CSCF 24 (step S36).
- the P-CSCF 24 When the P-CSCF 24 receives Dia-Cx-UAA, the P-CSCF 24 transmits a SIP-REGISTER including IMSI.UE to the S-CSCF 25 (step S37).
- the S-CSCF 25 transmits a Dia-Cx-SAR including IMSI.UE to the HSS 26 (step S38).
- the HSS 26 When the HSS 26 receives Dia-Cx-SAR, the HSS 26 transmits a MAP Update Location including IMSI.UE to the HLR / AuC 16 (step S39).
- the HLR / AuC 16 When the HLR / AuC 16 receives the MAP Update Location, the HLR / AuC 16 transmits the MAP Cancel Location including the IMSI.UE to the OLD MSC (MSC 14) (step S40).
- the OLD MSC (MSC14) receives the MAP Cancel Location, it deletes the target subscriber data (step S41).
- the OLD MSC (MSC 14) transmits a MAP Cancel Location Ack to the HLR / AuC 16 (step S42).
- MAP-Insert Subscriber Data includes IMSI.UE subscriber information.
- the HSS 26 Upon receiving the MAP-Insert Subscriber Data, the HSS 26 creates subscriber data based on the IMSI.UE subscriber information in the MAP-Insert Subscriber Data (Step S44). The HSS 26 registers subscriber data in the VLR 27 and manages the subscriber data. The HSS 26 has a function of converting the VLR format subscriber data format into the IMS format subscriber data format.
- the HSS 26 transmits a MAP-Insert Subscriber Data Ack to the HLR / AuC 16 (step S45).
- the HRL / AuC 16 When the HRL / AuC 16 receives the MAP-Insert Subscriber Data Ack, the HRL / AuC 16 transmits a MAP-Update Location Ack to the HSS 26 (step S46).
- the OLD MSC deletes the target subscriber data in step S41, and then deletes the subscription data from the VLR 15 in which the deleted subscriber data is registered (step S47).
- the HSS 26 Upon receiving the MAP-Update Location Ack, the HSS 26 transmits Dia-Cx-SAA including MSISDN to the S-CSCF 25 (step S48).
- the S-CSCF 25 When the S-CSCF 25 receives Dia-Cx-SAA, it transmits SIP-200 OK including MSISDN to the P-CSCF 24 (step S49).
- P-CSCF 24 When P-CSCF 24 receives SIP-200 OK, it transmits SIP-200 OK including MSISDN to Femto AP 21b (step S50).
- the P-CSCF 24 sends / receives a message to / from the S-CSCF 25 and performs confirmation processing (step S51 / SIP-SUBSCRIBE, SIP-200 OK, SIP-NOTIFY, SIP-200 OK).
- Femto AP 21b When Femto AP 21b receives SIP-200 OK, it sends Security Mode Command to UE 3c (step S52).
- UE3c performs secrecy when receiving Security Mode Command (step S53). Concealment processing is performed by a method compliant with 3GPP.
- UE 3c transmits Security Mode Complete to Femto AP 21b (step S54).
- Femto AP 21b When Femto AP 21b receives Security Mode Complete, it supplements TMSI (Temporary Mobile Subscriber Identities) (step S55). TMSI supplementation is done in a 3GPP compliant manner.
- TMSI Temporal Mobile Subscriber Identities
- the Femto AP 21b sends and receives messages to and from the S-CSCF 25 via the P-CSCF 24 and performs confirmation processing (step S56 / SIP-SUBSCRIBE, SIP-200 OK, SIP-NOTIFY, SIP-200 OK).
- the Femto AP 21b transmits a Location Update Accept including the new TMSI to the UE 3c (Step S57).
- UE3c upon receiving Location Update Accept, sends TMSI Reallocation Complete to Femto AP 21b (step S58).
- the UE 3c, the Femto AP 21b, the PDG 22, the AAA 23, the HSS 26, and the HLR / are established with the IPsec Tunnel (1) established between the Femto AP 21b and the PDG 22 (step S1).
- a message is transmitted / received to / from AuC 16, UE 3c authentication processing is performed, and when UE 3c authentication is successful, IPsec Tunnel (2) is established between Femto AP 21b and PDG 22 (steps S2 to S28). .
- the IPsec Tunnel (2) between the Femto AP 21b and the PDG 22 established by the authentication process of the UE 3c is released (Steps S29 to S33).
- UE 3c sends a Location Update Request to Femto AP 21b in order to update LAI (normal location updating) (step A2).
- the Femto AP 21b When the Femto AP 21b receives the Location Update Request, the Femto AP 21b transmits an IDENTITY Request to the UE 3c (Step A3).
- the UE 3c When the UE 3c receives the IDENTITY Request, the UE 3c transmits an IDENTITY Response including IMSI.UE for specifying the UE 3c to the Femto AP 21b (Step A4).
- the Femto AP 21b When the Femto AP 21b receives the IDENTITY Response, the Femto AP 21b transmits an IKE-SA-INIT Request to the PDG 22 (Step A5).
- the PDG 22 When the PDG 22 receives the IKE-SA-INIT Request, it sends an IKE-SA-INIT Response to the Femto AP 21b (Step A6).
- the Femto AP 21b When the Femto AP 21b receives the IKE-SA-INIT Response, the Femto AP 21b establishes an IKE SA between the Femto AP 21b and the PDG 22 (step A7).
- the Femto AP 21b transmits an IKE-AUTH Request including an APN (Access Point Name) and an NAI (Network Access Identifier) to the PDG 22 (Step A8).
- APN Access Point Name
- NAI Network Access Identifier
- the Femto AP 21b Since the Femto AP 21b receives the Location Update Request from the UE 3c, the Femto AP 21b determines that the message received from the UE 3c (Location Update Request) is a message corresponding to the CS service location registration request (CS service location registration request). When the location registration of the CS service is requested, the Femto AP 21b transmits an IKE-AUTH Request including the NAI indicating “0CS0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname” to the PDG 22. “ ⁇ UE_IMSI>” is information for specifying the UE 3c, and is IMSI.UE in the IDENTITY Response received in step A4. “ ⁇ Femto_IMSI>” is information for specifying the Femto AP.
- the PDG 22 When the PDG 22 receives the IKE-AUTH Request, the PDG 22 transmits a Dia-EAP-Request including the NAI in the IKE-AUTH Request to the AAA 23 (Step A9).
- the AAA-EAP-Request (message received from the PDG 22) generates a CS service location registration request (CS service location). Determine whether it is a request corresponding to a registration request), a PS service location registration request (a message corresponding to a PS service location registration request), or a PDP Activate request (a message corresponding to PDP Activate) To do.
- the AAA 23 determines that the Dia-EAP-Request is a CS service location registration request, the AAA 23 transmits a Dia-Wx-MAR including the IMSI.UE indicated by the NAI in the Dia-EAP-Request to the HSS 26 (step A10). .
- Dia-EAP-Request is a CS service location registration request because the NAI indicates “0CS0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname”.
- HSS26 will transmit MAP-SAI [CS] to HLR / AuC16, if Dia-Wx-MAR is received (step A11).
- the HLR / AuC 16 When the HLR / AuC 16 receives the MAP-SAI [CS], it transmits the MAP-SAI Ack to the HSS 26 (step A12). In this processing operation, because of authentication NG (no subscriber information), the HLR / AuC 16 transmits MAP-SAI Ack including Return error information (step A12).
- ⁇ Data received from HSS26 is abnormal or missing essential information.
- the HSS 26 Upon receiving the MAP-SAI Ack, the HSS 26 transmits the Dia-Wx-MAA including the User Unkown to the AAA 23 because the MAP-SAI Ack includes Return error information (step A13).
- the AAA 23 When the AAA 23 receives the Dia-Wx-MAA, it transmits a Dia-EAP-Answer including Result: DIA_ERROR_USER_NO_WLAN_SUBSCRIPTON to the PDG 22 because the User Unkown was included in the Dia-Wx-MAA (step A14).
- PDG 22 When PDG 22 receives Dia-EAP-Answer, since Dia: EAP-Answer includes Result: DIA_ERROR_USER_NO_WLAN_SUBSCRIPTON, it transmits IKE-AUTH Response including EAP-Failure to Femto AP 21b (step A15).
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits a Location Update Accept to the UE 3c (Step A16).
- the UE 3c, the Femto AP 21b, the PDG 22, the AAA 23, the HSS 26, and the HLR / Messages are transmitted to and received from the AuC 16, and UE authentication processing is performed.
- the Femto AP 21b determines that the authentication of the UE 3c has failed, the Femto AP 21b transmits a Location Update Accept to the UE 3c (step A16), and ends the authentication process of the UE 3c.
- UE 3c sends a Location Update Request to Femto AP 21b (step B1).
- the Femto AP 21b When the Femto AP 21b receives the Location Update Request, the Femto AP 21b transmits a Location Update Accept to the UE 3c (Step B2).
- Femto AP 21b asynchronously transmits REGISTER including IMSI.UE to P-CSCF 24 (step C1).
- the P-CSCF 24 When receiving the REGISTER, the P-CSCF 24 transmits a REGISTER including IMSI.UE to the S-CSCF 25 (step C2).
- S-CSCF 25 When S-CSCF 25 receives REGISTER, it sends 200 OK to P-CSCF 24 (step C3).
- the P-CSCF 24 When the P-CSCF 24 receives 200 OK, it transmits 200 OK to the Femto AP 21b (step C4).
- PS Routing Update (IMSI) / Attach First, the processing operation of PS (Packet Switching) Routing Update (IMSI) / Attach will be described with reference to FIGS.
- UE3c When UE3c moves into RA (Routing Area) under Femto AP21b, UE3c starts PS service location registration (initial location registration).
- PS service location registration Initial location registration
- IPsec Tunnel (1) is established between the Femto AP 21b and the PDG 22 (step D1).
- UE 3c transmits an Attach Request to Femto AP 21b in order to perform RAI (Routing Area Information) update (normal Routing updating) (Step D2).
- RAI Ring Area Information
- the Femto AP 21b When the Femto AP 21b receives the Attach Request, the Femto AP 21b transmits an IDENTITY Request to the UE 3c (Step D3).
- the UE 3c When the UE 3c receives the IDENTITY Request, the UE 3c transmits an IDENTITY Response including IMSI.UE to the Femto AP 21b (Step D4).
- IMSI.UE is information for specifying UE3c.
- the Femto AP 21b When the Femto AP 21b receives the IDENTITY Response, the Femto AP 21b transmits an IKE-SA-INIT Request to the PDG 22 (Step D5). Then, an IKE SA is established between the Femto AP 21b and the PDG 22 (steps D6 and D7).
- the Femto AP 21b transmits an IKE-AUTH Request including both an APN (Access Point Name) and an NAI (Network Access Identifier) to the PDG 22 (Step D8).
- APN Access Point Name
- NAI Network Access Identifier
- the Femto AP 21b determines that the message received from the UE 3c (Attach Request) is a message corresponding to the CS service location registration request (PS service location registration request).
- the Femto AP 21b transmits an IKE-AUTH Request including the NAI indicating “0PS0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname” to the PDG 22.
- “0PS0” is information indicating the location registration of the PS service.
- ⁇ UE_IMSI> is information for specifying the UE 3c, and is IMSI.UE included in the IDENTITY Response received in step D4.
- “ ⁇ Femto_IMSI>” is information for specifying the Femto AP.
- the PDG 22 When the PDG 22 receives the IKE-AUTH Request, the PDG 22 transmits a Dia-EAP-Request including the NAI in the IKE-AUTH Request to the AAA 23 (Step D9).
- the AAA-EAP-Request (message received from the PDG 22) generates a CS service location registration request (CS service location). Determine whether it is a request corresponding to a registration request), a PS service location registration request (a message corresponding to a PS service location registration request), or a PDP Activate request (a message corresponding to PDP Activate) To do.
- the AAA 23 determines that the Dia-EAP-Request is a request for location registration of the PS service, the AAA 23 transmits a Dia-Wx-MAR including the IMSI.UE indicated by the NAI in the Dia-EAP-Request to the HSS 26 (step D10). .
- the AAA 23 determines that the Dia-EAP-Request is a PS service location registration request because the NAI indicates “0PS0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname”.
- the HSS 26 When the HSS 26 receives the Dia-Wx-MAR, the HSS 26 transmits a MAP-SAI [PS] including the MSI.UE in the Dia-Wx-MAR to the HLR / AuC 16 (step D11).
- PS means Packet Switching.
- the HLR / AuC 16 When the HLR / AuC 16 receives the MAP-SAI [PS], the HLR / AuC 16 obtains the RAND / AUTN / CK / IK / XRES corresponding to the IMSI.UE in the MAP-SAI [PS], and the RAND / AUTN / CK / IK MAP-SAI Ack including / XRES is transmitted to HSS 26 (step D12).
- Step D13 to Step D25 is the same processing as Step S13 to Step S25.
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits a Security Mode Command to the UE 3c (step D26).
- UE3c upon receiving Security Mode Command, sends Security Mode Complete to Femto AP 21b (step D27).
- Femto AP 21b When Femto AP 21b receives Security Mode Complete, Femto AP 21b transmits IKE-AUTH Request to PDG 22 (step D28).
- the PDG 22 When the PDG 22 receives the IKE-AUTH Request, the PDG 22 transmits an IKE-AUTH Response to the Femto AP 21b (Step D29).
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits an Attach Accept to the UE 3c (Step D30).
- UE 3c When UE 3c receives Attach Accept, UE 3c transmits Attach Complete to Femto AP 21b (step D31).
- Femto AP 21b When Femto AP 21b receives Attach Complete, it establishes IPsec Tunnel (3) between Femto AP 21b and PDG 22 (step D32).
- step D33 to step D37 is the same as the processing from step S29 to step S33, and the IPsec Tunnel (3) established in step D32 is released (step D37).
- the UE 3a, the Femto AP 21b, the PDG 22, the AAA 23, the HSS 26, and the HLR in a situation where the IPsec Tunnel (1) is established between the Femto AP 21b and the PDG 22 (step D1).
- a message is transmitted / received to / from AuC16, and UE3c authentication processing is performed.
- IPsec Tunnel (3) is established between the Femto AP 21b and the PDG 22 (steps D2 to D32).
- the IPsec Tunnel (3) between the Femto AP 21b and the PDG 22 established by the authentication process of the UE 3c is released (Steps S33 to D37).
- UE 3c sends RA Update Request to Femto AP 21b in order to update RAI (Routing Area Information) (normal Routing updating) (Step E2).
- RAI Ring Area Information
- the Femto AP 21b When the Femto AP 21b receives the RA Update Request, since the RAI is information on the macro side, the Femto AP 21b transmits an RA Update Reject including CV # 10 to the UE 3c (Step E3).
- the UE 3c When the UE 3c receives the RA Update Reject, it sends an Attach Request to the Femto AP 21b (Step E4).
- Step E5 to Step E39 is the same processing as Step D2 to Step D37.
- the Femto AP 21b performs an Attach Request to the UE 3c and performs the same operation as the processing described in FIGS.
- the Femto AP 21b When the Femto AP 21b receives a Periodic RA Update Request from the UE 3c, it sends an RA Update Accept to the UE 3c. As a result, Periodic RA Update Request is performed.
- IP sec establishment sequence when sending PS>
- processing operation of the IP sec establishment sequence (Activate PDP Context Request) at the time of PS transmission will be described with reference to FIGS.
- UE 3c sends Activate PDP Context Request including IMSI.UE to Femto AP 21b (step F1).
- the Femto AP 21b When the Femto AP 21b receives the Activate PDP Context Request, the Femto AP 21b sends an IKE-SA-INIT Request to the PDG 22 (Step F2).
- the PDG 22 When the PDG 22 receives the IKE-SA-INIT Request, it sends an IKE-SA-INIT Response to the Femto AP 21b (Step F3).
- the Femto AP 21b When the Femto AP 21b receives the IKE-SA-INIT Response, the Femto AP 21b transmits an IKE-AUTH Request including both an APN (Access Point Name) and an NAI (Network Access Identifier) to the PDG 22 (Step F4).
- APN Access Point Name
- NAI Network Access Identifier
- Step F1 we will supplement the operations from Step F1 to Step F4. Since the Femto AP 21b receives the Activate PDP Context Request from the UE 3c, the Femto AP 21b determines that the message received from the UE 3c (Activate PDP Context Request) is a message corresponding to the PDP Activate (PDP Activate). When the PDP activation is requested, the Femto AP 21b transmits an IKE-AUTH Request including the NAI indicating “0PDP0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname” to the PDG 22. “0PDP0” is information indicating PDP Activate.
- ⁇ UE_IMSI> is information for specifying the UE 3c, and is IMSI.UE in the Activate PDP Context Request received in Step F1.
- ⁇ Femto_IMSI> is information for specifying the Femto AP.
- PDG 22 When PDG 22 receives IKE-AUTH Request, PDG 22 transmits Dia-EAP-Request including both NAI and EAP-Payload (empty) in IKE-AUTH Request to AAA 23 (step F5).
- the AAA-EAP-Request (message received from the PDG 22) generates a CS service location registration request (CS service location). Determine whether it is a request corresponding to a registration request), a PS service location registration request (a message corresponding to a PS service location registration request), or a PDP Activate request (a message corresponding to PDP Activate) To do.
- the AAA 23 determines that the Dia-EAP-Request is a request for PDP activation, the AAA 23 transmits a Dia-Wx-MAR including the IMSI.UE indicated by the NAI in the Dia-EAP-Request to the HSS 26 (step F6).
- Dia-EAP-Request is a request for PDP Activate because the NAI indicates “0PDP0 ⁇ UE_IMSI> / ⁇ Femto_IMSI> @realmname”.
- the HSS 26 When the HSS 26 receives the Dia-Wx-MAR, the HSS 26 transmits a MAP-SAI [PDP] including the IMSI.UE in the Dia-Wx-MAR to the HLR / AuC 16 (step F7).
- PDP means PDP Activate.
- the HLR / AuC 16 When the HLR / AuC 16 receives the MAP-SAI [PDP], the HLR / AuC 16 acquires the RAND / AUTN / CK / IK / XRES corresponding to the IMSI.UE in the MAP-SAI [PDP], and the RAND / AUTN / CK / IK MAP-SAI Ack including / XRES is transmitted to HSS 26 (step F8).
- the HSS 26 When the HSS 26 receives the MAP-SAI Ack, the HSS 26 transmits Dia-Wx-MAA including RAND / AUTN / CK / IK / XRES in the MAP-SAI Ack to the AAA 23 (step F9).
- AAA 23 Upon receiving Dia-Wx-MAA, AAA 23 transmits a Dia-EAP-Answer including both Result-Code (multi-round) and EAP-Request / AKA-Challenge to PDG 22 (step F10). .
- the PDG 22 Upon receiving the Dia-EAP-Answer, the PDG 22 transmits an IKE-AUTH Response including EAP-Request / AKA-Challenge to the Femto AP 21b (Step F11).
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits an Authentication Request to the UE 3c (Step F12).
- the UE 3c When the UE 3c receives the Authentication Request, the UE 3c transmits an Authentication Response to the Femto AP 21b (Step F13).
- the Femto AP 21b When the Femto AP 21b receives the Authentication Response, the Femto AP 21b transmits an IKE-AUTH Request including both the EAP-Response / AKA-Challenge and the Private Extension to the PDG 22 (Step F14).
- PDG 22 When PDG 22 receives the IKE-AUTH Request, PDG 22 transmits a Dia-EAP-Request including EAP-Response / AKA-Challenge to AAA 23 (step F15).
- the AAA 23 When the AAA 23 receives the Dia-EAP-Request, the AAA 23 transmits a Dia-EAP-Answer including both the Result-Code (Success) and the EAP-Request / Success to the PDG 22 (step F16).
- PDG 22 When PDG 22 receives Dia-EAP-Answer, it transmits Dia-AA-Request to AAA 23 (step F17).
- the AAA 23 When the AAA 23 receives the Dia-AA-Request, the AAA 23 transmits a Dia-AA-Answer including a Result-Code (Success) to the PDG 22 (step F18).
- PDG 22 When PDG 22 receives Dia-AA-Answer, it sends an Access Request to RADIUS 28 (step F19).
- RADIUS 28 When RADIUS 28 receives the Access Request, RADIUS 28 sends Access Accept to PDG 22 (step F20).
- PDG 22 When PDG 22 receives the Access Accept, it sends an Accounting Request (START) to RADIUS 28 (Step F21).
- SAT Accounting Request
- RADIUS 28 When RADIUS 28 receives Accounting Request (START), RADIUS 28 sends Accounting Response (START) to PDG 22 (step F22).
- the PDG 22 Upon receiving the Accounting Response (START), the PDG 22 transmits an IKE-AUTH Response including EAP-Request / Success to the Femto AP 21b (Step F23).
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits a Security Mode Command to the UE 3c (Step F24).
- UE3c upon receiving the Security Mode Command, sends Security Mode Complete to Femto AP 21b (Step F25).
- Femto AP 21b When Femto AP 21b receives Security Mode Complete, it performs 3G wireless concealment processing (step F26) and transmits an IKE-AUTH Request to PDG 22 (step F27).
- the 3G wireless concealment process is performed by a method compliant with 3GPP.
- the PDG 22 When the PDG 22 receives the IKE-AUTH Request, the PDG 22 transmits an IKE-AUTH Response including the CF (Remote IP address) to the Femto AP 21b (Step F28).
- CF Remote IP address
- the CF is used for user data communication.
- the Femto AP 21b When the Femto AP 21b receives the IKE-AUTH Response, the Femto AP 21b transmits an Activate PDP Context Accept to the UE 3c (Step F29), and establishes an IPsec Tunnel (4) between the Femto AP 21b and the PDG 22 (Step F30). And communication is performed between UE3c and PDG22 (step F31).
- messages are transmitted and received between the UE 3c, the Femto AP 21b, the PDG 22, the AAA 23, the RADIUS 28, the HSS 26, and the HLR / AuC 16, and the authentication process of the UE 3c is performed.
- 3G wireless concealment processing is performed between the UE 3c and the Femto AP 21b, and an IPsec Tunnel (4) is established between the Femto AP 21b and the PDG 22 (Steps F1 to F30).
- the UE 3c authentication process is performed via the Femto AP 21b
- the 3G wireless concealment process is performed between the UE 3c and the Femto AP 21b
- the IPsec Tunnel (4 ) Can be established.
- the communication system according to the present embodiment may not depend on the 3GPP version described in Non-Patent Document 1.
- control operation in each device configuring the communication system in the present embodiment described above can be executed using hardware, software, or a combination of both.
- a program (communication program) that defines a processing sequence is installed in a memory in a computer incorporated in dedicated hardware, and the computer executes the program. It is possible to execute the process.
- the program can be installed in a general-purpose computer capable of executing various processes, and the computer can execute the program to execute the process.
- the program can be recorded in advance on a hard disk or ROM (Read Only Memory) as a recording medium.
- the program can be stored (recorded) temporarily or permanently in a removable recording medium.
- a removable recording medium can be provided as so-called package software.
- the removable recording medium includes a floppy (registered trademark) disk, a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical) disk, a DVD (Digital Versatile Disc), a magnetic disk, and a semiconductor memory.
- the program is installed on the computer from the removable recording medium as described above.
- the program may be wirelessly transferred from the download site to the computer.
- the program may be transferred in a wired manner to a computer via a network.
- the communication system not only executes processing in time series according to the processing operation described in the above embodiment, but also in parallel according to the processing capability of the apparatus that executes the processing, or as necessary. Alternatively, it can be configured to execute processing individually.
- the communication system in the present embodiment may be configured by a plurality of devices, or may be configured by a configuration in which each device exists in the same casing.
- the present embodiment is applicable to services using a femtocell base station.
- UE User Equipment
- MSC Mobile Services Switching Center
- VLR Visitor Location Register
- HLR / AuC Home Location Register / Authentication Center
- Femto AP Femto Access Point
- PDG Packet Data Gateway
- AAA Authentication Authorization Accounting
- P-CSCF Proxy-Call Session Control Function
- S-CSCF Server-Call Session Control Function
- HSS Home Subscriber Server
- RADIUS Remote Authentication Dial In User Service
Abstract
Description
本発明にかかる通信システムは、
IMS(IP Multimedia subsystem)網で使用されるUE(User Equipment)とHLR(Home Location Register)とを少なくとも有する通信システムであって、
所定の通信エリアを構築するフェムトセル用基地局と、
前記UEと前記HLRとの間の通信を少なくとも制御する制御手段と、を有し、
前記フェムトセル用基地局と前記制御手段とは、前記UEと前記HLRとの間に存在し、
前記フェムトセル用基地局は、
前記UEから受け付けたメッセージを前記制御手段に送信すると共に、前記制御手段から受け付けたメッセージを前記UEに送信する送信制御手段を有し、
前記制御手段は、
前記フェムトセル用基地局から受け付けたメッセージを、前記HLRが認識可能なメッセージに変換し、また、前記HLRから受け付けたメッセージを、前記UEが認識可能なメッセージに変換する。
また、本発明にかかるフェムトセル用基地局は、
UEから送信されるメッセージを受け付けるフェムトセル用基地局であって、
前記UEから受け付けたメッセージが、CS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定されたメッセージに対応するメッセージを、中継装置に送信する。
また、本発明にかかる認証装置は、
中継装置がフェムトセル用基地局から受け付けたメッセージと、管理装置で管理する加入者情報と、を基に、UEの認証を行う認証装置であって、
前記中継装置から受け付けたメッセージが、PSサービスの位置登録要求に対応するメッセージか、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、その特定されたメッセージに応じた制御を行う。
また、本発明にかかる通信方法は、
IMS(IP Multimedia subsystem)網で使用されるUE(User Equipment)とHLR(Home Location Register)と、所定の通信エリアを構築するフェムトセル用基地局と、前記UEと前記HLRとの間の通信を少なくとも制御する制御手段と、を有し、前記フェムトセル用基地局と前記制御手段とは、前記UEと前記HLRとの間に存在する通信システムが行う通信方法であって、
前記フェムトセル用基地局が、前記UEから受け付けたメッセージを、前記制御手段に送信し、
前記フェムトセル用基地局が、前記制御手段から受け付けたメッセージを、前記UEに送信し、
前記制御手段が、前記フェムトセル用基地局から受け付けたメッセージを、前記HLRが認識可能なメッセージに変換し、
前記制御手段が、前記HLRから受け付けたメッセージを、前記UEが認識可能なメッセージに変換する。
UEから送信されるメッセージを受け付けるフェムトセル用基地局が行う通信方法であって、
前記UEから受け付けたメッセージが、CS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、その特定されたメッセージに対応するメッセージを、中継装置に送信する。
中継装置がフェムトセル用基地局から受け付けたメッセージと、管理装置で管理する加入者情報と、を基に、UEの認証を行う認証装置が行う通信方法であって、
前記中継装置から受け付けたメッセージが、PSサービスの位置登録要求に対応するメッセージか、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、その特定されたメッセージに応じた制御を行う。
また、本発明にかかる記録媒体は、
UEから送信されるメッセージを受け付けるフェムトセル用基地局に実行させるための通信プログラムを記録したコンピュータ読み取り可能な記録媒体であって、
前記通信プログラムは、前記UEから受け付けたメッセージが、CS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、その特定されたメッセージに対応するメッセージを、中継装置に送信する処理を、前記フェムトセル用基地局に実行させる。
中継装置がフェムトセル用基地局から受け付けたメッセージと、管理装置で管理する加入者情報と、を基に、UEの認証を行う認証装置に実行させる通信プログラムを記録したコンピュータ読み取り可能な記録媒体であって、
前記通信プログラムは、前記中継装置から受け付けたメッセージが、PSサービスの位置登録要求に対応するメッセージか、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、その特定されたメッセージに応じた制御を行う処理を、前記認証装置に実行させる。
まず、図1A-1Cを参照しながら、本実施形態の通信システムの概要について説明する。
まず、図1A-1Cを参照しながら、本実施形態の通信システムについて説明する。
次に、本実施形態の通信システムの処理動作について詳細に説明する。
まず、図2~図4を参照しながら、CS(Circuit Switching)Location Update(IMSI)/Attachの処理動作について説明する。
次に、図5を参照しながら、認証NG(加入者情報なし)の場合の処理動作について説明する。なお、図5の処理でもFemto AP21bとPDG22との間でIPsec Tunnel(1)が予め確立しているものとする(ステップA1)。
次に、図6を参照しながら、UE3cとFemto AP21bとの間でLocation Updateが行われる場合について説明する。Location Updateは、非同期で行うことになる。
次に、図7を参照しながら、Femto AP21bとIMSとの間でLocation Updateが行われる場合について説明する。Location Updateは、非同期で行うことになる。
まず、図8、図9を参照しながら、PS(Packet Switching) Routing Update(IMSI)/Attachの処理動作について説明する。
次に、図10、図11を参照しながら、UE3cが、macro側の既存3G網1からFemto AP21bの配下の追加IMS網2に移動した場合に、UE3cがRA Update Requestを行う場合の処理動作について説明する。なお、Macro側のPDPは、UE3cが追加IMS網2から既存3G網1に移動した場合に上書きされる。
次に、Periodic RA Update Requestを行う場合について説明する。
次に、図12、図13を参照しながら、PS発信時のIP sec確立シーケンス(Activate PDP Context Request)の処理動作について説明する。
本実施形態は、フェムトセル用基地局を用いたサービスに適用可能である。
12 Node-B
13 RNC(Radio Network Controller)
14 MSC(Mobile Services Switching Center)
15、27 VLR(Visitor Location Register)
16 HLR/AuC(Home Location Register/Authentication Center)
21 Femto AP(Femto Access Point;フェムトセル用基地局)
22 PDG(Packet Data Gateway;中継装置)
23 AAA(Authentication Authorization Accounting;認証装置)
24 P-CSCF(Proxy-Call Session Control Function;通信制御装置)
25 S-CSCF(Serving-Call Session Control Function;通信制御装置)
26 HSS(Home Subscriber Server;管理装置)
28 RADIUS(Remote Authentication Dial In User Service)
Claims (15)
- IMS(IP Multimedia subsystem)網で使用されるUE(User Equipment)とHLR(Home Location Register)とを少なくとも有する通信システムであって、
所定の通信エリアを構築するフェムトセル用基地局と、
前記UEと前記HLRとの間の通信を少なくとも制御する制御手段と、を有し、
前記フェムトセル用基地局と前記制御手段とは、前記UEと前記HLRとの間に存在し、
前記フェムトセル用基地局は、
前記UEから受け付けたメッセージを前記制御手段に送信すると共に、前記制御手段から受け付けたメッセージを前記UEに送信する手段を有し、
前記制御手段は、
前記フェムトセル用基地局から受け付けたメッセージを前記HLRで認識可能なメッセージに変換すると共に、前記HLRから受け付けたメッセージを前記UEが認識可能なメッセージに変換する、通信システム。 - 前記制御手段は、
前記フェムトセル用基地局が前記UEから受け付けたメッセージを受け付ける中継装置と、
前記HLRに格納されている前記UEの加入者情報を取得し、該取得した前記UEの加入者情報を管理する管理装置と、
前記中継装置が前記フェムトセル用基地局から受け付けたメッセージと、前記管理装置で管理する加入者情報と、を基に、前記UEの認証を行う認証装置と、
前記認証装置で前記UEの認証が成功した場合に、前記フェムトセル用基地局のSIP(Session Initiation Protocol)による通信を制御する通信制御装置と、
を有する、請求項1記載の通信システム。 - 前記フェムトセル用基地局は、
前記UEから受け付けたメッセージがCS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、または、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに対応するメッセージを前記中継装置に送信し、
前記中継装置は、
前記フェムトセル用基地局から受け付けたメッセージを前記認証装置に送信し、
前記認証装置は、
前記中継装置から受け付けたメッセージがPSサービスの位置登録要求に対応するメッセージか、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに応じた制御を行う、請求項2記載の通信システム。 - 前記フェムトセル用基地局は、
前記UEから受け付けたメッセージが、Location Update Requestの場合は、CSサービスの位置登録要求に対応するメッセージと特定し、該特定したメッセージに対応する情報を含めたメッセージを前記中継装置に送信し、
前記UEから受け付けたメッセージが、Attach Requestの場合は、PSサービスの位置登録要求に対応するメッセージと特定し、該特定したメッセージに対応する情報を含めたメッセージを前記中継装置に送信し、
前記UEから受け付けたメッセージが、Active PDP Context Requestの場合は、PDP Activateに対応するメッセージと特定し、該特定したメッセージに対応する情報を含めたメッセージを前記中継装置に送信し、
前記認証装置は、
前記中継装置から受け付けたメッセージに含まれる情報を基に、前記中継装置から受け付けたメッセージがPSサービスの位置登録要求に対応するメッセージか、または、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定する、請求項3記載の通信システム。 - 前記フェムトセル用基地局は、
前記UEのIMSIと、前記フェムトセル用基地局のIMSIと、を含めたメッセージを前記中継装置に送信し、
前記認証装置は、
前記中継装置から受け付けたメッセージに含まれる前記UEのIMSIと、前記管理装置で管理する加入者情報と、を基に、前記UEの認証を行う、請求項2から4の何れか1項に記載の通信システム。 - 前記認証装置は、
前記中継装置から受け付けたメッセージがPSサービスの位置登録要求に対応するメッセージと特定した場合には、当該PSサービスの位置登録に対応する制御を行い、
前記中継装置から受け付けたメッセージがCSサービスの位置登録要求に対応するメッセージと特定した場合には、当該CSサービスの位置登録に対応する制御を行い、
前記中継装置から受け付けたメッセージがPDP Activateに対応するメッセージと特定した場合には、当該PDP Activateに対応する制御を行う、請求項2から5の何れか1項に記載の通信システム。 - UEから送信されるメッセージを受け付けるフェムトセル用基地局であって、
前記UEから受け付けたメッセージがCS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、または、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに対応するメッセージを中継装置に送信する、フェムトセル用基地局。 - 前記UEから受け付けたメッセージが、Location Update Requestの場合は、CSサービスの位置登録要求に対応するメッセージと特定し、Attach Requestの場合は、PSサービスの位置登録要求に対応するメッセージと特定し、Activate PDP Context Requestの場合は、PDP Activateに対応するメッセージと特定する、請求項7記載のフェムトセル用基地局。
- 中継装置がフェムトセル用基地局から受け付けたメッセージと、管理装置で管理する加入者情報と、を基に、UEの認証を行う認証装置であって、
前記中継装置から受け付けたメッセージがPSサービスの位置登録要求に対応するメッセージか、または、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに応じた制御を行う、認証装置。 - 前記中継装置から受け付けたメッセージがPSサービスの位置登録要求に対応するメッセージと特定した場合には、当該PSサービスの位置登録に対応する制御を行い、
前記中継装置から受け付けたメッセージがCSサービスの位置登録要求に対応するメッセージと特定した場合には、当該CSサービスの位置登録に対応する制御を行い、
前記中継装置から受け付けたメッセージがPDP Activateに対応するメッセージと特定した場合には、当該PDP Activateに対応する制御を行う、請求項9記載の認証装置。 - IMS(IP Multimedia subsystem)網で使用されるUE(User Equipment)とHLR(Home Location Register)と、所定の通信エリアを構築するフェムトセル用基地局と、前記UEと前記HLRとの間の通信を少なくとも制御する制御手段と、を有し、前記フェムトセル用基地局と前記制御手段とは、前記UEと前記HLRとの間に存在する通信システムが行う通信方法であって、
前記フェムトセル用基地局が、前記UEから受け付けたメッセージを前記制御手段に送信し、
前記フェムトセル用基地局が、前記制御手段から受け付けたメッセージを前記UEに送信し、
前記制御手段が、前記フェムトセル用基地局から受け付けたメッセージを前記HLRが認識可能なメッセージに変換し、
前記制御手段が、前記HLRから受け付けたメッセージを前記UEが認識可能なメッセージに変換する、通信方法。 - UEから送信されるメッセージを受け付けるフェムトセル用基地局が行う通信方法であって、
前記UEから受け付けたメッセージが、CS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに対応するメッセージを中継装置に送信する、通信方法。 - 中継装置がフェムトセル用基地局から受け付けたメッセージと、管理装置で管理する加入者情報と、を基に、UEの認証を行う認証装置が行う通信方法であって、
前記中継装置から受け付けたメッセージが、PSサービスの位置登録要求に対応するメッセージか、CSサービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに応じた制御を行う、通信方法。 - UEから送信されるメッセージを受け付けるフェムトセル用基地局に実行させる通信プログラムを記録したコンピュータ読み取り可能な記録媒体であって、
前記通信プログラムは、前記UEから受け付けたメッセージが、CS(Circuit Switching)サービスの位置登録要求に対応するメッセージか、PS(Packet Switching)サービスの位置登録要求に対応するメッセージか、または、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに対応するメッセージを、中継装置に送信する処理を、前記フェムトセル用基地局に実行させる、記録媒体。 - 中継装置がフェムトセル用基地局から受け付けたメッセージと、管理装置で管理する加入者情報と、を基に、UEの認証を行う認証装置に実行させる通信プログラムを記録したコンピュータ読み取り可能な記録媒体であって、
前記通信プログラムは、前記中継装置から受け付けたメッセージがPSサービスの位置登録要求に対応するメッセージか、CSサービスの位置登録要求に対応するメッセージか、PDP Activateに対応するメッセージか、を特定し、該特定したメッセージに応じた制御を行う処理を、前記認証装置に実行させる、記録媒体。
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JP5641569B2 (ja) | 2014-12-17 |
US8699416B2 (en) | 2014-04-15 |
EP2384036A1 (en) | 2011-11-02 |
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