WO2008010580A1 - Communication control method and communication control apparatus - Google Patents
Communication control method and communication control apparatus Download PDFInfo
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- WO2008010580A1 WO2008010580A1 PCT/JP2007/064373 JP2007064373W WO2008010580A1 WO 2008010580 A1 WO2008010580 A1 WO 2008010580A1 JP 2007064373 W JP2007064373 W JP 2007064373W WO 2008010580 A1 WO2008010580 A1 WO 2008010580A1
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- user terminal
- communication
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- destination information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42025—Calling or Called party identification service
- H04M3/42034—Calling party identification service
- H04M3/42042—Notifying the called party of information on the calling party
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/22—Arrangements for preventing the taking of data from a data transmission channel without authorisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/304—Route determination for signalling traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/306—Route determination based on the nature of the carried application
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/1225—Details of core network interconnection arrangements
- H04M7/123—Details of core network interconnection arrangements where the packet-switched network is an Internet Protocol Multimedia System-type network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
- H04W36/00226—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB] wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
- H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
- H04W36/1446—Reselecting a network or an air interface over a different radio air interface technology wherein at least one of the networks is unlicensed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/08—Upper layer protocols
- H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
Definitions
- the present invention relates to a communication control method and a communication control apparatus used in a communication system including a plurality of network domains with different destination information.
- a communication system capable of communicating user communication information (such as voice) between user terminals using SIP (Session Initiation Protocol) or the like is known.
- SIP Session Initiation Protocol
- VCC application Voice Call Continuity Application
- the VCC application switches a control plane path that is a path of control information used for call control or the like.
- a user plane route which is a route for user communication information such as voice, is switched end-to-end by a plurality of user terminals performing communication.
- the destination information of the user's communication information transmitted to the other user terminal by the other user terminal transfers the user's communication information.
- This is information (for example, MGW IP address) that identifies the MGW (Media Gateway) that controls the checker.
- MGW IP address identifies the MGW (Media Gateway) that controls the checker.
- the destination information of the user's communication information transmitted from the other user terminal to the one user terminal identifies the one user terminal.
- Information for example, IP address of one user terminal.
- the time required for notifying the other user terminal of the destination information of the communication information of the user in each network domain Will be long.
- the communication of the user's communication information is interrupted or disconnected due to the long switching time of the network domain to which one user terminal is connected.
- One feature of the present invention is that communication information of a user is communicated between one user terminal (user terminal 10a) and another user terminal (user terminal 10b).
- Notifying the terminal and transmitting the communication information of the user using the route identification information as the destination information by the other user terminal. And effect.
- the path identification information for identifying the communication path of the user communication information is The network domain to which one user terminal is connected is switched when another user terminal is assigned to the communication path of the user's communication information and another user terminal transmits the user's communication information using the path identification information as destination information. Even in this case, it is not necessary to notify other user terminals of identification information of one user terminal used as destination information in a network domain to which one user terminal is connected. Therefore, it is possible to shorten the switching time of the network domain to which one user terminal is connected and to secure “Location Privacy”.
- One feature of the present invention is that in the above-described feature of the present invention, when the one user terminal is connected to one network domain (WLAN domain 100 or CS domain 200), Associating one destination information (WLAN host address or CS host address), which is the destination information used in step 1, with the route identification information (routing address), and using the route identification information as the destination information. Determining whether the destination information needs to be changed based on the type of the user's communication information when the received user's communication information is received from the other user terminal; and When it is determined that a change of the destination information is necessary, the destination information is changed from the route identification information to the one destination information, and the user communication Step a communication control method for transferring multi-address and summarized in that further comprising the.
- One feature of the present invention is that in the above-described feature of the present invention, the network domain to which the one user terminal is connected is changed from the one network domain to another network domain (CS domain 200 or WLAN domain 100).
- the destination information used in the other network domain is associated with other destination information (CS host address or WLAN host address) and the route identification information; and If it is determined that a change of the destination information is necessary, the destination information is changed from the route identification information to the other destination information, and the communication information of the user is transferred.
- the communication control method further includes steps.
- a communication control method further includes a step of accepting a switching instruction for instructing switching of a communication path of the communication information of the user, and the destination
- the gist is that the step of determining whether or not the information needs to be changed is performed when the switching instruction is accepted.
- One feature of the present invention is that communication information of a user is communicated between one user terminal (user terminal 10a) and another user terminal (user terminal 10b), and the other user terminal
- a communication control apparatus provided on a communication path (U-PLANE) of the user communication information (IASA50), an identification information allocation unit (address allocation unit 52) that allocates path identification information (routing address) for identifying a communication path of the user's communication information to a communication path of the user's communication information;
- a notification unit (communication unit 51) for notifying the other user terminal of the route identification information allocated by the identification information allocating unit, wherein the other user terminal has the user ID. It is used as the destination information when transmitting the user's communication information.
- One feature of the present invention is that in the above-described feature of the present invention, when the one user terminal is connected to one network domain (WLAN domain 100 or CS domain 200), A storage unit (storage unit 53) for storing one destination information (WLAN host address or CS host address) and the route identification information (routing address) in association with each other as the destination information used in FIG.
- a determination unit U-PLANE switching unit 55 for determining whether or not the destination information needs to be changed, the destination information is determined from the route identification information to the one destination.
- Change in distribution and summarized in that comprises transfer unit (communication unit 51) further has a communication control device for transferring communication information of the user.
- the storage unit includes the one feature.
- the destination information used in the other network domain when the network domain connected to the user terminal is switched from the one network domain to another network domain (CS domain 200 or WLAN domain 100).
- Destination information (CS host address or WLAN host address) and the route identification information are stored in association with each other, and the transfer unit determines that the destination information needs to be changed.
- the gist is to change the communication route of the communication information of the user by changing the destination information from the route identification information to the other destination information.
- the communication control device further includes a reception unit (communication unit 51) that receives a switching instruction that instructs switching of a communication path of the communication information of the user.
- the gist is to determine whether or not the destination information needs to be changed when the determination unit receives the switching instruction.
- FIG. 1 is a schematic diagram showing a configuration of a communication system according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing a configuration of a user terminal 10 according to an embodiment of the present invention.
- FIG. 3 is a block diagram showing a configuration of IASA 50 according to an embodiment of the present invention.
- FIG. 4 is a diagram showing information stored in a storage unit 53 according to an embodiment of the present invention.
- FIG. 5 is a sequence diagram showing an operation of the communication system according to one embodiment of the present invention.
- FIG. 6 is a sequence diagram showing an operation of the communication system according to one embodiment of the present invention.
- FIG. 7 is a sequence diagram showing an operation of the communication system according to one embodiment of the present invention.
- FIG. 8 is a sequence diagram showing an operation of the communication system according to one embodiment of the present invention.
- FIG. 9 is a sequence diagram showing an operation of the communication system according to one embodiment of the present invention.
- FIG. 10 is a sequence diagram showing an operation of the communication system according to one embodiment of the present invention.
- FIG. 1 is a schematic diagram showing a configuration of a communication system according to an embodiment of the present invention.
- the case where the user terminal 10b transmits control information and user communication information to the user terminal 10a is taken as an example. Also, it should be noted that Fig. 1 focuses only on the network configuration to which the user terminal 10a is connected.
- the user terminal 10 a can be connected to the WLAN domain 100 or the CS domain 200. Further, the path (C-PLANE) for transmitting / receiving control information between the user terminal 10a and the user terminal 10b is switched according to the network domain to which the user terminal 10a is connected. Similarly, depending on the network domain to which the user terminal 10a is connected, the route (U-PLANE) for transmitting / receiving user communication information (for example, voice information and data information) between the user terminal 10a and the user terminal 10b is switched. It is done.
- user terminal 10a and user terminal 10b have the same configuration, they are collectively referred to as user terminal 10 unless otherwise specified. Details of the user terminal 10 will be described later.
- the WLAN domain 100 is a wireless LAN domain standardized by IEEE 802.11 or the like, and includes an access point (not shown) that performs wireless communication with the user terminal 10a.
- identification information for identifying the user terminal 10a (for example, the IP address of the user terminal 10a) is used as destination information of user communication information transmitted by the user terminal 10b.
- the PDG 110 is a device (Packet Data Gateway) that controls C-PL ANE and U-PLANE when the user terminal 10a is connected to the WLAN domain 100. Specifically, the PDG 110 controls session 3 between the user terminal 10a and VCC40 (described later). Further, the PDG 110 transmits user communication information transmitted from the user terminal 10b to the user terminal 10a.
- the CS domain 200 is a circuit switched (CS) circuit, a base station (not shown) that performs radio communication with the user terminal 10a and an RNC (Radio Network Controller, not shown) that manages the base station. ) Etc.
- identification information for identifying the MGW 230 (for example, the IP address of the MGW 230) is used as the destination information of the user communication information transmitted from the user terminal 10b.
- destination information used in each network domain is referred to as a host address.
- the destination information used in each network domain is different.
- the host address used in the WLAN domain 100 is referred to as the WLAN host address
- the host address used in the CS domain 200 is referred to as the CS host address. Called.
- the MSC / VLR210 temporarily manages the mobile switching controller (MSC) that manages the RNC (not shown) and performs circuit switching and the subscriber information, location information, and authentication information of the user terminal 10a.
- MSC mobile switching controller
- RNC Radio Network Controller
- the MGCF 220 is a device having a function (Media Gateway Control Function) for controlling the C-plane when the user terminal 10a is connected to the CS domain 200. Specifically, MGCF220 controls session 2 between MGCF220 and VCC40 (described later).
- MGCF220 controls session 2 between MGCF220 and VCC40 (described later).
- the MGW 230 is a device (Media Gateway) having a function of switching communication methods such as STM (Synchronous Transport Mode), ATM (Asynchronos Transport Mode), and IP (Internet Protocol). Specifically, the MGW 230 is provided on the U-Plane and performs codec conversion of voice information, QoS (Quality of Service) control, and the like.
- STM Synchronous Transport Mode
- ATM Asynchronos Transport Mode
- IP Internet Protocol
- the MGW 230 is provided on the U-Plane and performs codec conversion of voice information, QoS (Quality of Service) control, and the like.
- the subscriber server 240 includes subscriber information, location information, and authentication information of the user terminal 10a. It is a sano (eg HLR; Home Location Register, HSS; Home Subscriber server). The subscriber server 240 authenticates that the user terminal 10a is valid based on the subscriber information of the user terminal 10a when the user terminal 10a starts a session with the user terminal 10b (for example, AAA; Authentication Autnorization Accounting server).
- HLR Home Location Register
- HSS Home Subscriber server
- the subscriber server 240 authenticates that the user terminal 10a is valid based on the subscriber information of the user terminal 10a when the user terminal 10a starts a session with the user terminal 10b (for example, AAA; Authentication Autnorization Accounting server).
- the CSCF 30 is a device having a function (Call State Control Function) for controlling a state of call control performed between the user terminal 10a and the user terminal 10b.
- the CSCF 30 functions as a SIP server in which the IP address (SIP address) of the user terminal 10a is registered when SIP (Session Initiation Protocol) is used.
- SIP Session Initiation Protocol
- CSCF 30 is contacted first when starting communication between user terminal 10a and user terminal 10b.
- P (Proxy) CSCF, which manages session start and session end S ( Serving) —Includes CSCF, I (Interrogating) —CSCF, etc. that allocates S—CSCF when communication is started between user terminal 10a and user terminal 10b.
- P-CSCF, S-CSCF, and I CSCF are collectively referred to as CSCF 30 in order to simplify the description.
- the VCC 40 has an application (Voice Call Continuity Application) for switching C PLANE, which is a path of control information such as call control information, when the network domain to which the user terminal 10a is connected is switched. Specifically, when user terminal 10a is connected to CS domain 200, VCC40 sets session 1 between VCC40 and user terminal 10b, and session 2 between VCC40 and MGCF220. Set. On the other hand, when user terminal 10a is connected to WLAN domain 100, VCC40 sets session 1 between VCC40 and user terminal 10b and session 3 between VCC 40 and user terminal 10a. To do.
- VCC40 Voice Call Continuity Application
- the VCC 40 sets the session 1 between the VCC 40 and the user terminal 10b regardless of the network domain to which the user terminal 10a is connected. That is, the VCC 40 switches only the session (session 2 or session 3) on the user terminal 10a side without switching session 1 on the user terminal 10b side, even if the network domain to which the user terminal 10a is connected is switched.
- the IASA 50 is a device (Inter Access System Anchor) that switches U-PLANE, which is the route of user communication information such as voice information and data information, when the network domain to which the user terminal 10a is connected is switched. It is. That is, the IASA 50 transmits the user communication information to the user terminal 10a side after terminating the user communication information received from the user terminal 10b side.
- the IASA 50 terminates the user communication information received from the user terminal 10b side, and then transmits the user communication information to the MGW230. Send to.
- the IASA 50 terminates the user communication information received from the user terminal 10b and transmits the user communication information to the user terminal 10a.
- the destination information of the user communication information transmitted by the user terminal 10b is not the host address used in each network domain, but identifies U-PLANE between the user terminal 10b and the IASA50. It is a routing address (for example, IP address of IASA50).
- IP address of IASA50 which is an example of a routing address, is dynamically assigned according to the setting of U-PLANE.
- terminal 10b terminates the user communication information received from the user terminal 10b.
- the user communication information whose destination information is the routing address is received and the user address is transferred from the routing address to the host address. It means rewriting destination information of communication information
- the IASA 50 When the user terminal 10a is connected to the CS domain 200, the IASA 50 stores a routing address and a CS host address in association with each other. On the other hand, when the user terminal 10a is connected to the WLAN domain 100, the IASA 50 stores the routing address and the WLAN host address in association with each other. Details of IASA50 will be described later (see Figure 3).
- FIG. 2 is a block diagram showing a configuration of the user terminal 10 according to the embodiment of the present invention.
- the user terminal terminal 1100 has a communication unit 1111, IISSIIMM 1122, and UUSSIIMM 1133. . .
- a part of the configuration that should be prepared for the user terminal 1100 to perform wireless communication communication is shown. (For example, modulation / modulation processing unit, code encoding processing unit, and baseband processing unit) are omitted. I hope you have been paid attention to here and there. .
- the communication communication unit 1111 is connected to the base station station included in the access point or the CCSS Dome Domain 220000 included in the WWLLAANN Dome Domain 110000. And non-wireless communication. . In addition, the communication communication unit 1111 transmits and transmits any control information information such as call control information through CC PPLLAANNEE. , UU——Sends and sends the user's communication information information such as audio / voice information information and data information information through PPLLAANNEE. .
- IISSIIMM1122 is a module that performs various types of processing when performing communication communication through the WWLLAANN domain 110000 (IIPP MMuullttiimmeeddiiaa SSeerrvviicceess IIddeennttiittyy MMoodduullee)). . Specifically, the IISSIIMM 1122 requires the identification and identification information that is necessary when communicating through the WWLLAANN domain 110000. ((IIPP ADDRESSES)), etc. are managed, and various kinds of processing are performed using the identification information information here. . .
- UUSSIIMM1133 communicates through CCSS Dome Mailin 20000
- UUSSIIMM1133 performs various kinds of processing processing (UUnniivveerrssaall SSuubbssccrriibbeerr MMoodduullee)).
- UUSSIIMM1133 is required to provide information on subscriber information necessary when communicating via CCSS Dome Domain 220000. Information management etc. are managed, and various kinds of processing are performed using the subscriber information information report here. .
- FIG. 33 is a block diagram showing the configuration of the IIAASSAA5500 according to an embodiment of the present invention. .
- the IIAASSAA 5500 includes a communication communication unit 5511, an address loss harm iijj unit 5522, and a memory storage unit 5533. And a control control section 5544 and a UU——PPLLAANNEE switching section 5555. .
- the IIAASSAA5500 is used to send and receive user communication information information between the user terminal end 1100aa and the user terminal end 1100bb.
- the road is UU—it is set up on PPLLAANNEE. .
- the communication communication unit 5511 receives and receives the communication information information of the user transmitted and transmitted by the user terminal end 1100bb. . It should be noted that the destination address information information of the user's communication information information sent and received by the user terminal terminal 1100bb is as described above. And, Ruruutete
- the communication communication unit 5511 responds to the instruction from the UU——PPLLAANNEE switching unit 5555, and receives the user communication communication information.
- the destination information of the user communication information transmitted by the user terminal 10b is the routing address power, the WLA N host address (for example, the user (IP address of terminal 10a).
- the WLA N host address for example, the user (IP address of terminal 10a).
- the destination information of the user communication information transmitted from the user terminal 10b to the user terminal 10a is obtained from the routing address to the CS host address (for example, the IP address of the MGW230). ).
- the communication unit 51 receives from the subscriber server 240 a message (HAR; Home Agent MIP Request) requesting assignment of destination information of user communication information used in the network domain to which the user terminal 10a is connected. Further, the communication unit 51 receives an allocation request (Allocation Request) for requesting allocation of a routing address (for example, an IP address of IASA 50) from the CSCF 30.
- HAR Home Agent MIP Request
- Allocation Request for requesting allocation of a routing address (for example, an IP address of IASA 50) from the CSCF 30.
- the communication unit 51 instructs to switch the U-PLANE via the WLAN domain 100 to the U-PLANE via the CS domain 200, and the U-PLANE via the CS domain 200 via the WLAN domain 100.
- the address allocation unit 52 allocates a host address used in each network domain to the user terminal 10a.
- the address allocation unit 52 assigns a routing address (for example, the IP address of IASA50) to U-PLANE set between the user terminal 10b and the IASA50 in response to the allocation request. assign.
- a routing address for example, the IP address of IASA50
- the address assignment unit 52 associates the routing address and the host address and stores them in the storage unit 53 (NAT (Network Address Translation) processing).
- NAT Network Address Translation
- the address assignment unit 52 assigns a CS host address (for example, the IP address of the MGW 230) and the CS host. The address and the routing address are stored in the storage unit 53 in association with each other.
- the address assignment unit 52 assigns a WLAN host address (for example, the IP address of the user terminal 10a) and also uses the WLAN host address. And the routing address are stored in the storage unit 53 in association with each other.
- the storage unit 53 stores the terminal ID, routing address, host address, service type, and connection state in association with each other! /.
- terminal ID for example, a telephone number
- the "routing address” column stores a routing address (for example, an IP address of IASA50) used as destination information between the user terminal 10b and the IASA50.
- a routing address for example, an IP address of IASA50
- the "host address" column stores a host address used as destination information in the network domain to which the user terminal 10a is connected.
- the host address is the CS host address (for example, the IP address of the MGW 230) when the user terminal 10a is connected to the CS domain 200.
- the host address is a WLAN host address (for example, the IP address of the user terminal 10a) when the user terminal 10a is connected to the WLAN domain 100.
- routing address described above may be the same as the host address of the data information.
- the “service type” column stores information indicating the type of user communication information transmitted by the user terminal 10b.
- the “service type” field stores information indicating whether the user communication information is voice information or the user communication information is data information.
- a protocol (RTP; Real-time Transport Protocol) or HTTP (Hyper Text Transfer Protocol) used in communication performed between the user terminal 10a and the user terminal 10b is displayed. It may also be possible to store an additional float ID, a port number set at the start of communication between the user terminal 10a and the user terminal 10b, and the like.
- the "connection state" column is validated as destination information of user communication information transmitted by the user terminal 10b for each type (service type) of user communication information transmitted by the user terminal 10b. Information indicating the host address is stored.
- the host address is enabled as the destination information of the user's communication information
- “O” is stored in the “connection status” column
- the host address is enabled as the destination information of the user's communication information.
- “X” is stored in the “Connection Status” column.
- the U-PLANE switching unit 55 When receiving the switching instruction from the CSCF 30, the U-PLANE switching unit 55 refers to the "service type" column stored in the storage unit 53, and sets the user communication information transmitted by the user terminal 10b. Get the type. The U-PLANE switching unit 55 determines whether or not the destination information of the user communication information needs to be changed based on the type of the user communication information acquired from the storage unit 53.
- the U-PLANE switching unit 55 determines that the destination information needs to be changed, and the user communication information type is If it is data information, it is determined that there is no need to change the destination information.
- the U-PLANE switching unit 55 stores the information stored in the storage unit 53 according to the network domain instructed by the switching instruction. Update the "Connection status" column.
- the U-PLANE switching unit 55 when switching to the U-PLANE via the WLAN domain 100 or the U-PLANE via the CS domain 200 is instructed by the switching instruction, Update the "Connection status" field corresponding to domain 200 from "X" to “Yes".
- the U-PLANE switching unit 55 Update the "Status” column from "X" to "Yes”.
- the U-PLANE switching unit 55 when receiving the user communication information transmitted from the user terminal 10b, the U-PLANE switching unit 55 refers to the "connection state" column stored in the storage unit 53 and refers to the user terminal. Instructs the communication unit 51 to rewrite the destination information of the user's communication information sent to 10a.
- the U-PLANE switching unit 55 receives the user's communication received from the user terminal 10b.
- the host address! / Associated with the destination information (routing address) of the communication information is acquired from the storage unit 53.
- the U-PLANE switching unit 55 determines the type of user communication information.
- PLANE switching unit 55 instructs communication unit 51 to rewrite the destination information from the routing address to the host address.
- the routing address and the host address may be the same. Therefore, in such a case, it is needless to say that the destination information need not be rewritten.
- 5 to 10 are sequence diagrams showing the operation of the communication system according to the embodiment of the present invention.
- step 10 the user terminal 10a transmits a connection request (Set Up) to the MSC / VLR 210 in order to start communication between the user terminal 10a and the user terminal 10b. .
- step 11 the MSC / VLR 210 transmits a message (IAM; Initial Address Message) for requesting the user terminal 10a to assign a host address to the MGCF220 / MGW230.
- IAM Initial Address Message
- step 12 MGCF220 / MGW230 transmits a message (ACM; Address Complete Message) indicating that IAM has been received to MSC / VLR 210.
- ACM Address Complete Message
- Step 13 the MSC / VLR 210 transmits a message (Alert) indicating that the connection request (Set Up) has been accepted to the user terminal 10a.
- Step 14 the MGCF 220 / MGW 230 transmits an authentication request (AMR; Authentication-Authorizati on Mobile-node Request) requesting authentication as to whether or not the user terminal 10a is valid to the subscriber server 240.
- AMR Authentication-Authorizati on Mobile-node Request
- step 15 the subscriber server 240 recognizes that the user terminal 10a is valid.
- the route of user communication information sent and received between the user terminal 10a and the user terminal 10b (U-PLANE) Select IASA50 to be assigned to.
- the subscriber sano 240 sends a message (HAR: Home Agent MIP Request) requesting allocation of a CS host address to the IASA 50 selected according to the location information and the service type.
- HAR Home Agent MIP Request
- step 16 the IASA 50 assigns the CS host address to the user terminal 10a, and stores the assigned CS host address in the storage unit 53 together with the terminal ID (for example, the telephone number of the user terminal 10a). To do.
- step 17 the IASA 50 sends a message (HAA; Home Agent MIP Answer) including the CS host address assigned to the user terminal 10a to the subscriber server 24.
- HAA Home Agent MIP Answer
- the subscriber server 240 stores the IP address of the IASA 50 and the CS host address of the user terminal 10a in association with each other.
- the IP address of IASA50 is MGCF220
- step 18 the subscriber server 240 determines the I of the IASA 50 selected in step 15.
- a message including P address (AMA; Authentication—Authorization Mobile—node Answer) is sent to MGCF220 / MGW230.
- AMA Authentication—Authorization Mobile—node Answer
- step 19 the MGCF220 / MGW230 transmits a message (Invite) requesting the user terminal 10b to be called to the CSCF 30 using the CS host address of the user terminal 10a as transmission source information.
- a message Invite
- step 20 the CSCF 30 transmits a message (Allocation Request) requesting allocation of a routing address to the IASA 50 using the CS host address of the user terminal 10a as transmission source information.
- a message Allocation Request
- step 21 the IASA 50 is set between the user terminal 10b and the IASA 50.
- IASA50 is a user terminal 1
- 0a CS host address and routing address are stored in association with each other (NAT (Net work Address Translation) processing).
- NAT Network work Address Translation
- step 22 the IASA 50 sends a message (Reserved) indicating that the routing address has been assigned to the CSCF 30 using the routing address as the source information.
- step 23 the CSCF 30 transmits a message (Invite) requesting the user terminal 10b to be called to the user terminal 10b using the routing address as transmission source information. Further, when transmitting user communication information to the user terminal 10a, the user terminal 10b uses a routing address as destination information of the user communication information.
- a message Invite
- the user terminal 10b uses a routing address as destination information of the user communication information.
- step 24 the CSCF 30 transmits a message (200 OK) indicating that the user terminal 10b is being called to the MGCF 220 / MGW 230.
- step 25 the MGCF220 / MGW230 sends a message (Path Establish Request) requesting the setting of U-PLANE, which is a path for transmitting and receiving user communication information, between the user terminal 10a and the IASA 50 to the IAS A50. Send.
- a message Path Establish Request
- step 26 the IASA 50 sets a U-PLANE, which is a path for transmitting and receiving user communication information between the user terminal 10a and the IASA 50, and then indicates that the U-PLANE has been set. (Path Establiish Response) is sent to MGCF220 / MG W230.
- step 27 the MGCF220 / MGW230 sends a message (ANM: Answer Message) indicating that U-PLANE, which is a route for transmitting / receiving user communication information between the user terminal 10a and the IASA50, is set. Send to / VLR210.
- NAM Answer Message
- step 28 the MSC / VLR 210 sends a message indicating that U-PLANE, which is a path for transmitting / receiving user communication information between the user terminal 10a and the IASA 50 (user terminal 10b), is set ( Connect) to the user terminal 10a.
- step 29 the user terminal 10a transmits to the MSC / VLR 210 an acknowledgment (Connect Ack) of a message (Connect) indicating that U-PLANE has been set.
- step 30 the user terminal 10a is connected to the user terminal 10a.
- Call procedure 1 for starting communication with the terminal 10b is executed.
- the user terminal 10a requests the ARF (not shown) to select the PDG 110 to which the user terminal 10a should be connected according to the location information of the user terminal 10a, and the user terminal 10a Obtain an IP address.
- the user terminal 10a transmits a message (such as IKE—SA—INIT—Request, IKE—Auth—Request) to the PDG 110 to perform the signature process or the authentication process.
- the PDG 110 requests the subscriber server 240 to authenticate whether or not the user terminal 10a is valid, and the subscriber server 240 authenticates that the user terminal 1 Oa is valid.
- step 30 an IPSec tunnel is formed between the user terminal 10a and the PDG 110.
- step 31 the PDG 110 sends a message (NASREQ (Network Access node Requirement) AA (Authentication Authorization) —A message requesting authentication whether the user terminal 10a satisfies the requirements required in the WLAN domain 100 or not. R equest) to the subscriber server 240.
- NASREQ Network Access node Requirement
- AA Authentication Authorization
- the subscriber server 240 authenticates that the user terminal 10a satisfies the requirements required in the WLAN domain 100, and then receives the location information of the user terminal 10a and the service requested by the user terminal 10a. Depending on the type, IASA 50 to be allocated to the route (U-PLANE) of user communication information transmitted and received between the user terminal 10a and the user terminal 10b is selected. Further, the subscriber server 240 transmits a message (HAR: Home Agent MIP Request) requesting the allocation of the WLAN host address to the IASA 50 selected according to the service type.
- HAR Home Agent MIP Request
- step 33 the IASA 50 assigns the WLAN host address to the user terminal 10a, and stores the assigned WLAN host address together with the terminal ID (for example, the telephone number of the user terminal 10a) in the storage unit 53. .
- Step 34 the IASA 50 transmits a message (HAA; Home Agent MIP Answer) including the WLAN host address assigned to the user terminal 10a to the subscriber server 240.
- HAA Home Agent MIP Answer
- the subscriber server 240 includes the IP address of the IASA 50 and the WLAN of the user terminal 10a. And associated host addresses.
- the IP address of IASA50 is an address used to identify PDIA110 SIASA50 and is different from the routing address.
- the subscriber server 240 sends a message indicating that the user terminal 10a satisfies the requirements required in the WLAN domain 100 (NAS REQ (Network Access Node Requirement) AA ⁇ Authentication Authorization) —Answer) Is sent to PDG110.
- the message (NQSREQ AA-Answer) includes the WLAN host address of the user terminal 10a and the IP address of the IASA50.
- step 36 the PDG 110 transmits a message (Path Establish Request) for requesting setting of U-PLANE, which is a path for transmitting and receiving user communication information, between the user terminal 10a and the IASA 50 to the IASA 50.
- a message Path Establish Request
- step 37 the IASA 50 sends a message (NWMP connection notification) indicating that the connection of the U-PLANE, which is a route for transmitting / receiving user communication information between the user terminal 10a and the IASA 50, is recognized according to the network management protocol. ) To CSCF30
- step 38 the CSCF 30 transmits a message (NWMP connection notification) reception response (N WMP connection notification response) to the IASA 50.
- step 39 the IASA 50 sets a U-PLANE, which is a route for transmitting and receiving user communication information between the user terminal 10a and the IASA 50, and then indicates that the U-PLANE has been set. (Path Establiish Response) to PDG110
- step 40 the PDG 110 transmits a message (IKE Auth Response) indicating that the user terminal 10a is authenticated to the user terminal 10a.
- the message (IKE Auth Response) includes the WLAN host address of the user terminal 10a.
- step 41 the user terminal 10a executes a calling procedure 2 for starting communication between the user terminal 10a and the user terminal 10b. Specifically, the user terminal 10a performs a process (Registration) for registering the IP address managed by the I SIM12 in the CSCF30. Do.
- Registration a process for registering the IP address managed by the I SIM12 in the CSCF30.
- step 42 the user terminal 10a transmits a message (INVITE) requesting a call to the user terminal 10b to the CSCF 30 by using the WLAN host address as transmission source information.
- a message INVITE
- step 43 the CSCF 30 uses the WLAN host address of the user terminal 10a as the transmission source information to request a routing address assignment message (Allocation
- step 44 IASA50 is set between user terminal 10b and IASA50.
- the IASA 50 stores the WLAN host address and the routing address in association with each other.
- IASA 50 transmits a message (Reserved) indicating that the routing address has been assigned to CSCF 30 using the routing address as the source information.
- step 46 the CSCF 30 transmits a message (Invite) requesting the user terminal 10b to be called to the user terminal 10b using the routing address as the transmission source information. Further, when transmitting user communication information to the user terminal 10a, the user terminal 10b uses a routing address as destination information of the user communication information.
- a message Invite
- step 50 the user terminal 10a
- step 30 to step 45 the user terminal 10a switches the network domain to which the user terminal 10a is connected to the CS domain 200 to the WLAN domain 100.
- IASA 50 stores the routing address and the CS host address in association with each other! A new association is stored.
- step 51 the VCC 40 performs a call control switching process. Specifically, as shown in Fig. 1, VCC40 switches session 2 to session 3 without changing session 1 (C-PLANE switching process).
- step 52 the CSCF 30 transmits to the user terminal 10a a message (200 OK) indicating that the network domain to which the user terminal 10a is connected has been switched.
- step 53 the CSCF 30 issues a switching instruction instructing the activation of the U-PLANE set between the user terminal 10a and the IASA 50 in the WLAN domain 100 to the IAS.
- the IASA 50 refers to the “service type” column stored in the storage unit 53, and acquires the type of user communication information transmitted by the user terminal 10b.
- the IASA 50 determines whether or not the destination information of the user communication information needs to be changed based on the type of the user communication information acquired from the storage unit 53.
- the IASA 50 determines that the destination information needs to be changed, the IASA 50 updates the “connection state” field stored in the storage unit 53 to enable the enabled host. Switch the address from the CS host address to the WLAN host address.
- step 54 the SIP session (C—PLANE) established in the CS domain 200 is released.
- step 55 CSCF 30 transmits to IASA 50 a release instruction instructing release of U-PLANE set between user terminal 10a and I ASA 50 in CS domain 200.
- step 56 MGCF220 / MGW230 sends a message (Path Release Request) requesting release of U-PLANE set between user terminal 10a and IASA50 in CS domain 200 to IAS A50. Send to.
- a message Path Release Request
- step 57 MGCF220 / MGW230 sends a message requesting release of U-PLANE set up between user terminal 10a and IASA50 in CS domain 200.
- step 58 the MSC / VLR 210 determines that the user terminal in the CS domain 200 A message (DISC) indicating that the U-PLANE set between 10a and IASA50 is disconnected is transmitted to the user terminal 10a.
- DISC A message
- step 59 the IASA 50 sends a message (Path Release Response) indicating that the configured U—PLANE set between the user terminal 10a and the I ASA 50 in the CS domain 200 has been released to the MGCF220 / Send to MGW230.
- a message Path Release Response
- the user terminal 10b sets the routing address as the destination information of the user communication information. Therefore, the network domain to which the user terminal 10a is connected can be switched without the user terminal 10b knowing.
- step 70 the user terminal 10a communicates with the user terminal 10b through the WLAN domain 100.
- Step 10a to Step 28 the user terminal 10a performs a procedure for connecting to the CS domain 200 in order to switch the network domain to which the user terminal 10a is connected from the WLAN domain 100 to the CS domain 200. Execute.
- step 10a unlike step 10 shown in FIG. 5, the user terminal 10a sends a switching request (Set Up) including a switching number for identifying communication between the user terminal 10a and the user terminal 10b. Send to MSC / VLR210.
- the switching number the terminal ID of the user terminal 10a or the user terminal 10b, a call control number, or the like can be used.
- step 21 the IASA 50 already stores the routing address and the WLAN host address in association with each other, and newly stores the routing address and the CS host address in association with each other.
- step 71 the VCC 40 performs a call control switching process. Specifically, as shown in Fig. 1, VCC40 switches session 3 to session 2 without changing session 1 (C-PLANE switching process).
- step 72 CSCF 30 transmits to IASA 50 a switching instruction instructing the activation of U-PLANE set between user terminal 10a and I ASA 50 in CS domain 200.
- the IASA 50 refers to the “service type” column stored in the storage unit 53, and acquires the type of user communication information transmitted by the user terminal 10b.
- the IASA 50 determines whether or not the destination information of the user communication information needs to be changed based on the type of the user communication information acquired from the storage unit 53.
- the IASA 50 determines that the destination information needs to be changed, the IASA 50 updates the “connection status” field stored in the storage unit 53 to enable the enabled host. Switch the address from the WLAN host address to the CS host address.
- Step 73 the SIP session (C—PLAN E) set in the WLAN domain 100 is released.
- step 74 the wireless connection set between the user terminal 10a and the PDG 110 is disconnected.
- step 75 the CSCF 30 issues a release instruction for instructing release of the U-PLANE set between the user terminal 10a and the IASA 50 in the WLAN domain 100 to the IASA5.
- step 76 the PDG 110 sends a message (Path Release Request) requesting release of the U-PLANE set between the user terminal 10a and the IASA 50 in the WLAN domain 100 to the IASA 50. .
- step 77 the IASA 50 sends a message (Path Release Response) indicating that the U—PLANE configured in the WLAN domain 100 has been released to the PDG 110.
- a message Path Release Response
- the user terminal 10b sets the routing address as the destination information of the user communication information. Therefore, the network domain to which the user terminal 10a is connected can be switched without the user terminal 10b knowing.
- IASA50 assigns a routing address for identifying U-PLANE to U-PLANE, and user terminal 10b transmits user communication information using the routing address as destination information.
- the network domain to which the user terminal 10a is connected is switched, there is no need to notify the user terminal 10b of the host address used as destination information in the network domain to which the user terminal 10a is connected. Therefore, it is possible to shorten the switching time of the network domain to which the user terminal 10a is connected and to secure “Location Privac”.
- the routing address and the host address are stored in association with each other and the user communication information in which the routing address is used as the destination information is received, the routing address is The destination information is rewritten to the host address, and the user communication information is transmitted to the user terminal 10a.
- the user terminal 10b since it is not necessary to notify the user terminal 10b of the host address of the user terminal 10a, the user terminal 10b cannot estimate the position of the user terminal 10a or the like based on the host address. In other words, the location of the user terminal 10a should be kept confidential. And force S.
- the area where the user terminal 10a is located may be a home area or a visited area.
- a device eg, V PCRF
- vP CRF device included in the home area.
- P refers to assign a host address! / ,.
- the power of using the WLAN domain 100 and the CS domain 200 as examples of network domains can be applied to a plurality of network domains having different host addresses.
- IASA50s are provided according to service types. It may be done.
- the IASA 50 corresponding to the voice information communication rewrites the routing address to the host address of the network domain to which the user terminal 10a is connected, and transmits the user communication information (voice information) sent by the user terminal 10b. ).
- the IASA 50 corresponding to the data information transfers the user communication information (data information) transmitted by the user terminal 10b without rewriting the routing address to the host address of the network domain to which the user terminal 10a is connected.
- the IASA 50 may perform switching control of U-PLANE over three or more network domains having different host addresses.
- the IASA 50 is not limited to the ability to assign a routing address triggered by a SIP message (INVITE). For example, if the user's communication information is data information, IASA50 will use the PDP context. Triggered by a message (PDP Context Activation)
- the routing address is notified to the user terminal 10b as the source information of the SIP message (INVITE) S, but is not limited to this, and is notified by another message.
- INVITE SIP message
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07791110A EP2045975A4 (en) | 2006-07-20 | 2007-07-20 | COMMUNICATION CONTROL METHOD AND COMMUNICATION CONTROL DEVICE |
| US12/374,546 US20090303985A1 (en) | 2006-07-20 | 2007-07-20 | Communication control method and communication control apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006198487A JP2008028663A (ja) | 2006-07-20 | 2006-07-20 | 通信制御方法及び通信制御装置 |
| JP2006-198487 | 2006-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008010580A1 true WO2008010580A1 (en) | 2008-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/064373 Ceased WO2008010580A1 (en) | 2006-07-20 | 2007-07-20 | Communication control method and communication control apparatus |
Country Status (6)
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|---|---|
| US (1) | US20090303985A1 (ja) |
| EP (1) | EP2045975A4 (ja) |
| JP (1) | JP2008028663A (ja) |
| KR (1) | KR20090034938A (ja) |
| CN (1) | CN101491039A (ja) |
| WO (1) | WO2008010580A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009296077A (ja) | 2008-06-03 | 2009-12-17 | Nec Corp | 移動体通信システム、ノード装置および網間移行制御方法 |
| KR20110038586A (ko) * | 2009-10-08 | 2011-04-14 | 한국전자통신연구원 | 경로 제어 관리 시스템 및 이를 이용한 경로 설정 방법 |
| CN101754318B (zh) * | 2009-12-23 | 2012-08-08 | 华为技术有限公司 | 一种旁路数据的传输方法、系统及接入点网络设备 |
| CN102340487B (zh) * | 2010-07-21 | 2014-04-02 | 航天信息股份有限公司 | 多信任域之间的完整性报告传递方法和系统 |
| US8738014B2 (en) | 2012-06-15 | 2014-05-27 | Telefonaktiebolaget L M Ericsson (Publ) | Dynamic VCC assignment |
| JP2012257261A (ja) * | 2012-07-13 | 2012-12-27 | Nec Corp | 移動体通信システム、ノード装置および網間移行制御方法 |
| CN103813402A (zh) * | 2012-11-15 | 2014-05-21 | 中兴通讯股份有限公司 | 通信路径的切换方法及装置、切换处理装置及系统 |
| KR102103198B1 (ko) * | 2014-09-22 | 2020-04-23 | 노키아 솔루션스 앤드 네트웍스 오와이 | 통신 네트워크 시스템에서 음소거 호 검출 |
| CN111371683B (zh) | 2018-12-25 | 2021-06-29 | 华为技术有限公司 | 网络连接路径的判定方法、设备及通信系统 |
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| JP2005312084A (ja) * | 2005-07-04 | 2005-11-04 | Fujitsu Ltd | モバイルノード |
| JP2006191514A (ja) * | 2004-12-10 | 2006-07-20 | Nec Corp | パケット配送システム、pan登録装置、pan管理装置及びパケット転送装置 |
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| US6947398B1 (en) * | 1998-11-13 | 2005-09-20 | Lucent Technologies Inc. | Addressing scheme for a multimedia mobile network |
| JP3924502B2 (ja) * | 2002-07-04 | 2007-06-06 | 富士通株式会社 | モバイル通信方法およびモバイル通信システム |
| KR20060003296A (ko) * | 2004-07-05 | 2006-01-10 | 삼성전자주식회사 | 이동통신망과 무선랜 사이의 핸드 오프 방법 및 그 시스템 |
-
2006
- 2006-07-20 JP JP2006198487A patent/JP2008028663A/ja active Pending
-
2007
- 2007-07-20 KR KR20097001983A patent/KR20090034938A/ko not_active Ceased
- 2007-07-20 EP EP07791110A patent/EP2045975A4/en not_active Withdrawn
- 2007-07-20 US US12/374,546 patent/US20090303985A1/en not_active Abandoned
- 2007-07-20 WO PCT/JP2007/064373 patent/WO2008010580A1/ja not_active Ceased
- 2007-07-20 CN CNA2007800275093A patent/CN101491039A/zh active Pending
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| JP2006191514A (ja) * | 2004-12-10 | 2006-07-20 | Nec Corp | パケット配送システム、pan登録装置、pan管理装置及びパケット転送装置 |
| JP2005312084A (ja) * | 2005-07-04 | 2005-11-04 | Fujitsu Ltd | モバイルノード |
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| See also references of EP2045975A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2045975A1 (en) | 2009-04-08 |
| CN101491039A (zh) | 2009-07-22 |
| EP2045975A4 (en) | 2010-04-14 |
| JP2008028663A (ja) | 2008-02-07 |
| US20090303985A1 (en) | 2009-12-10 |
| KR20090034938A (ko) | 2009-04-08 |
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