WO2007087744A1

WO2007087744A1 - A system, device and method for realizing terminal roaming control

Info

Publication number: WO2007087744A1
Application number: PCT/CN2007/000258
Authority: WO
Inventors: Dongjun Wu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-01-26
Filing date: 2007-01-24
Publication date: 2007-08-09
Also published as: CN100584083C; CN101009924A

Abstract

A system, device and method for realizing terminal roaming control in the next generation network are provided, wherein the terminal has an unique home IP address segment and sends an access request to the service control device via core packet network; said service control device records the IP address segments and the roaming authority between each two IP address segments, said service control device determines whether accept the access request or not according to the home IP address of said accessing terminal and the IP address at which the accessing terminal sent the access request. The invention can realize roaming accessing control and roaming conversation accounting to the accessing terminal by setting roaming authority and roaming mode between the IP address segments in the service control device.

Description

System, method and device for realizing terminal roaming control

The present application claims priority to Chinese Patent Application No. 20061003344 3.6, filed on Jan. 26, 2006, entitled,,,,,,,,,,,,,,,, in. TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to a system, method, and device for implementing terminal roaming control in a next generation network.

Background technique

The Next Generation Network (NGN) is a telecommunications network architecture that combines Internet Protocol (IP) technology and multimedia communication technology. In the NGN network, Internet-based IP telephony services (including ordinary IP phones and IP video phones) have been widely used due to their low cost and high mobility.

The IP telephony system in the NGN network is a telephone system based on IP packet switching network technology, which digitizes the media by using a device such as a telephony gateway server, and compresses and packs the data into a data packet, and transmits the data to the destination through the IP network; After receiving the data packet, the data is reorganized and decompressed and restored to media. Soft and hard terminals based on protocols such as Media Gateway Control Protocol (MGCP), H.248, H.323, and Session Initial Protocol (SIP) are only required to access the Internet and register with one. Service control devices, such as softswitch servers, IP Multimedia Subsystem servers, H.323 Gate Keeper (GK) or other servers that can register and handle calls, can make IP calls or turn on Related business.

Since the Internet is a stepless network, as long as there is a network cable terminal, it can access the Internet, that is, the terminal can access the Internet almost anywhere.

In the prior art, the service control device does not have the roaming control function. When the terminal performs roaming, the service control device cannot make a decision on whether to allow the terminal to perform roaming registration or roaming call. Correspondingly, in the process of the access control method, there is no process of verifying the roaming authority of the terminal, which makes the network operator unable to perform effective access control on the terminal that performs the IP call, and thus cannot effectively operate the network. control. Summary of the invention

Embodiments of the present invention provide a system, method, and device for implementing terminal roaming control, which can perform roaming control on an access terminal.

An embodiment of the present invention provides a service control device, including:

a roaming control information recording unit, configured to record roaming control information between different control basis information;

The access request processing unit is configured to determine, according to the control basis information carried by the access request and the information recorded by the roaming control information recording unit, whether to accept the access request from the access terminal.

Another embodiment of the present invention provides a system for implementing terminal roaming control, including a packet core network and a service control device, where the packet core network is used to implement information transmission between the access terminal and the service control device. The service control device is configured to record roaming control information between different control basis information; when receiving an access request from the access terminal, according to the home location of the access terminal and the control basis of the sending access request The roaming control information between the information determines whether the access request is accepted.

A further embodiment of the present invention provides a method for implementing terminal roaming control, including: receiving an access request from an access terminal;

Acquiring, according to the access request, the home location of the access terminal and the control basis information at the sending access request, and obtaining a roaming control message between the preset control information according to the roaming control information Determine whether to accept the access request.

The embodiment of the present invention sets the roaming control information between the control basis information in the service control device. When the access terminal wants to access the network, the service control device may control the attribution location and the location according to the access request. According to the information, the roaming control information between the two is obtained, thereby performing roaming access control on the access terminal.

The invention will now be further described with reference to the drawings and embodiments.

DRAWINGS

1 is a basic architectural diagram of an embodiment of a system for implementing terminal roaming control according to the present invention; FIG. 2 is a flowchart of an embodiment of a method for implementing terminal roaming control according to the present invention; Method flow chart of the first embodiment; 4 is a flow chart of a second embodiment of a method for implementing terminal roaming control of the present invention; and FIG. 5 is a block diagram of an embodiment of a service control device of the present invention.

detailed description

As shown in FIG. 1, a system for implementing terminal roaming control according to an embodiment of the present invention includes a plurality of access terminals 100, a packet core network 900, and a service control device 800. Each of the access terminals is configured with a unique home IP address segment, and can access the service control device 800 through the packet core network 900. The access terminal can communicate with the service control device 800 through the packet core network 900.

In an embodiment of the present invention, the access terminal 100 may be an Integrated Access Device (IAD) 101, an Access Media Gateway (AMG) 102, and a SIP-based SIP phone 103. Or H.323 based H.323 phone 104.

The access terminal 100 can be accessed locally; the network address translation (NAT) device 700 accesses the packet core network to implement domestic roaming access; realizes international roaming access, or accesses through other operators.

The service control device 800 records a plurality of IP address segments and roaming mode and roaming rights between each two IP address segments. The IP address segment refers to a single IP address or a collection of consecutive multiple IP addresses, such as 10.0.0.0 to 10.0.0.100 as an IP address segment; roaming modes include non-roaming, local roaming, domestic roaming, international roaming, carrier roaming or Operator custom roaming mode, etc.; roaming rights include roaming and roaming.

After receiving the access request from the access terminal 100, the service control device 800 determines whether to accept the roaming right between the home IP address of the access terminal and the IP address of the access terminal to send the access request. Access request.

In a specific implementation, the access request sent by the access terminal 100 may be a registration request or a call request. Accordingly, the roaming right may be divided into a roaming registration right and a roaming call right, the former including prohibiting roaming registration and allowing roaming registration, the latter This includes disabling roaming calls and allowing roaming calls.

Since each region, each country, and each carrier has a fixed IP address segment, when the access terminal accesses the network from different places, the IP address of the access network is different. As shown in FIG. 2, an embodiment of a method for implementing terminal roaming control according to the present invention includes:

Step S200: When the access terminal wants to access the network, send an access request by using the packet core network. To the business control equipment.

In step S201, the service control device learns the home IP address of the access terminal and the IP address of the access terminal (where it is located) according to the access request, and queries the roaming permission between the IP address segments to which the two belong. Whether to accept the access request is determined according to the roaming authority.

If the roaming right between the home IP address segment of the access terminal and the IP address segment at which the request is sent is to allow roaming, proceed to step S202; if the roaming permission is roaming prohibition, proceed to step S203.

Step S202: The service control device accepts the access request, and allows the access terminal to access the network. Step S203: The service control device rejects the access request, and denies the access terminal from accessing the network. In a specific implementation, the access request sent by the access terminal may be a registration request or a call request. Accordingly, the roaming right may be divided into a roaming registration right and a roaming call right. The former includes prohibiting roaming registration and allowing roaming registration, and the latter includes Roaming calls and roaming calls are prohibited.

In the first embodiment shown in FIG. 3, the method includes:

In step S300, the access terminal sends a registration request to the service control device through the packet core network.

In step S301, the service control device determines whether the access terminal is a legal terminal by querying the database. If the access terminal is not a legal terminal, the process proceeds to step S304. If the access device is a legal terminal, the process proceeds to step S302.

In step S302, the home IP address segment of the access terminal and the IP address of the clearing request are obtained according to the registration request, and the roaming registration authority between the two is queried.

In step S303, it is determined whether the roaming registration authority between the two IP addresses is a roaming registration permit. If the roaming registration right between the home IP address of the access terminal and the IP address at the requesting address is roaming registration prohibition, proceed to step S304; if the roaming between the home IP address of the access terminal and the IP address of the requesting address The registration authority is to allow roaming registration, and the process proceeds to step S305.

In step S304, the service control device rejects the registration request of the access device, and rejects the access terminal from registering to the network.

In step S305, the service control device accepts the registration request of the access terminal, allows the access terminal to register, and the access terminal can register to the network from the sending request. After the access terminal registers with the other access terminal after registering to the network from the sending request, the call request may be sent to the service control device by the packet core network in step S306.

Receiving the call request, the service control device queries, according to the call request, whether the roaming call right between the home IP address segment of the access terminal and the IP address of the sending request (where) is allowed to roam according to the call request. If the roaming permission is a roaming call, step S308 is performed; if the roaming call authority is a roaming call, the process proceeds to step S309.

Step S308, the service control device rejects the call request of the access terminal and rejects the access terminal call.

Step S309, the service control device accepts the call request of the access terminal, and allows the access terminal to make a call.

If the service control device allows the access terminal to call, the call process between the access terminal and other access terminals is implemented.

In step S310, after the access terminal completes the call, the IP address of the access terminal (including the home IP address and the roaming IP address), the roaming mode, and the talk time are written into the call bill, and the call is made. During charging, different charging standards may be preset for different roaming modes or roaming IP addresses, thereby implementing roaming charging of the calling terminal.

After the access terminal registers with the network from the sending request, the process of accepting the call of the other access terminal is similar to the process of initiating the call in the foregoing steps S306-S310, and details are not described herein again.

As shown in FIG. 4, it is a second embodiment of the present invention, which is different from the first embodiment in that the service control device only sets the roaming call right of the access terminal, and does not roam the access terminal. Registration rights are set.

In step S400, the access terminal sends a registration request to the service control device through the packet core network.

In step S401, the service control device determines whether the access terminal is a legitimate terminal by querying the database. If the access terminal is a legitimate terminal, the process proceeds to step S402; otherwise, the process proceeds to step S403.

In step S402, the registration request of the access terminal is accepted, and the access terminal is allowed to register to the network from the transmission request. In step S403, the service control device rejects the registration request of the access terminal, and denies the access terminal from registering to the network.

When the access terminal registers with the other access terminal after registering from the transmission request to the network, in step S404, the call request is sent to the service control device through the packet core network.

When the service control device receives the call request, in step S405, the roaming call authority between the home IP address of the access terminal and the IP address of the sending request (where) is queried according to the call request.

In step S406, it is determined whether the roaming call right is a roaming call. If the roaming call permission is to allow the roaming call, go to step S408; if the roaming right is to prohibit the roaming call, go to step S407.

The service control device performs step S407, rejecting the call request of the access terminal, and rejecting the access terminal call.

Step S408, the service control device accepts the call request of the access terminal, and allows the access terminal to make a call.

If the service control device allows the access terminal to call and implements the call between the access terminal and the other access terminal, in step S409, after the access terminal completes the call, the IP address of the access terminal (including the home IP address and The roaming IP address and the roaming mode are recorded into the call CDR. When charging the call, different charging standards can be preset for different roaming modes or roaming IP addresses, thereby implementing roaming charging of the calling terminal.

After the access terminal registers with the network from the sending request, the process of accepting the call of the other access terminal is similar to the process of initiating the call in the above steps S405-S409, and details are not described herein again.

In an embodiment of the system and method for implementing terminal roaming control according to the present invention, by setting roaming rights and roaming modes between IP address segments in the service control device, when the access terminal wants to access the network, according to its home IP Roaming access control between the address and the IP address, and performing roaming access control on the access terminal; at the same time, the embodiment of the present invention may also be based on the home IP address, the IP address, and the access terminal of the access terminal. The roaming mode between the home IP address and the IP address is used to charge the call of the access terminal, thereby implementing charging for roaming of the access terminal and performing operation control on the network.

Those skilled in the art can understand that in the foregoing embodiment, the IP address is used. Now roaming control. In the specific implementation, the control information may be used as the basis of the roaming control. The control information is characterized in that: when the access terminal is in the home location and the roaming location, the corresponding control information is different; A roaming authority and a roaming mode are established between the control information between the home place and the roaming place.

Please refer to FIG. 5, which is a block diagram of an embodiment of a service control device of the present invention.

The service control device includes: a roaming control information recording unit 810, configured to record roaming control information between different control basis information; an access request processing unit 820, information for carrying according to the access request, and the roaming control information recording unit 810 The recorded information determines whether an access request from the access terminal is accepted.

The access request processing unit 820 includes: a control information acquiring unit 821, configured to acquire, from the access request, a home location corresponding to the access terminal included therein and control control information at the sending access request location; The roaming control information searching unit 822 is configured to search for the corresponding roaming control information in the roaming control information recording unit 810 according to the control basis information acquired by the control according to the information acquiring unit 821; the determining unit 823 is configured to: The result of the search by the control information lookup unit 822 determines whether or not the access request is accepted.

The control basis information recorded in the roaming control information recording unit 810 is an IP address segment, and the roaming control information includes roaming rights.

The access request processed by the access request processing unit 820 may be a registration request and/or a call request.

In addition, when the roaming control information recorded in the roaming control information recording unit 810 further includes a roaming mode, the service control device may further include a charging unit 830, configured to use, according to the access control information of the access terminal, and the access terminal. The roaming mode between the home location and the sending access request station charges the call of the access terminal, thereby implementing charging for roaming of the access terminal, and performing operation control on the network.

Furthermore, the traffic control device may further include a terminal authentication unit ^840, to verify the legitimacy of the access terminal receives an access request to the access terminal, initiating an access request processing unit 820 at the time authenticated.

It should be noted that the charging unit 830 and the terminal verification unit 840 may not be disposed in the service control device, but may be implemented in a separate manner from the service control device. This will not go into details.

Claims

Rights request

A service control device, comprising:

The service control device according to claim 1, wherein the access request processing unit comprises:

a control information obtaining unit, configured to acquire, from the access request, a home location corresponding to the access terminal included therein and control control information at the sending access request location;

The roaming control information searching unit is configured to search for the corresponding roaming control information in the roaming control information recording unit according to the control basis information acquired by the control according to the information obtaining unit; the determining unit is configured to search according to the roaming control information searching unit As a result, it is determined whether or not the access request is accepted.

3. The service control device according to claim 1, wherein the access request processed by the access request processing unit comprises a registration request and/or a call request.

The service control device according to claim 1, wherein the roaming control information recorded by the roaming control information recording unit includes roaming authority.

The service control device according to claim 4, wherein the roaming control information recorded by the roaming control information recording unit further includes a roaming mode, and the service control device further includes a charging unit, configured to access according to The control of the terminal charges the call of the access terminal according to the information and the roaming mode of the access terminal between the home location and the sending access request.

The service control device according to claim 1, further comprising: a terminal verification unit, configured to perform validity verification on the access terminal when receiving the access request of the access terminal, when the verification is passed The access request processing unit is activated.

The service control device according to any one of claims 1 to 6, wherein the control basis information recorded in the roaming control information recording unit is an IP address segment.

8. A system for implementing terminal roaming control, comprising a packet core network and a service control device, wherein The packet core network is configured to implement information transmission between the access terminal and the service control device;

The service control device is configured to record roaming control information between different control basis information; when receiving an access request from the access terminal, according to the home location of the access terminal and sending an access request The control determines whether to accept the access request based on the roaming control information between the information.

The system according to claim 8, wherein the roaming control information recorded by the service control device comprises roaming rights; and the roaming rights include allowing roaming and prohibiting roaming.

The system according to claim 9, wherein the roaming control information recorded by the service control device further includes a roaming mode; the roaming mode includes non-roaming, local roaming, domestic roaming, international roaming, and carrier roaming or Carrier custom roaming mode.

The system according to claim 10, further comprising a charging unit, configured to: according to control information of the access terminal and a roaming mode pair between the home location and the sending access request of the access terminal The call of the access terminal is charged.

The system according to claim 8, further comprising a terminal verification unit, configured to perform legality verification on the access terminal when receiving the access request of the access terminal, and start the verification when the verification is passed Business control equipment.

13. The system of claim 8 further comprising a network address translation device that connects the access terminal to the packet core network.

The system according to any one of claims 8 to 13, characterized in that the control basis information recorded in the service control device is an IP address segment.

A method for implementing terminal roaming control, comprising:

Receiving an access request from an access terminal;

16. The method for implementing terminal roaming control according to claim 15, wherein: The step of determining whether to accept the access request is: accepting the access request when the roaming control information is allowed to roam; and rejecting the access request when the roaming control information is roaming prohibited .

The method for implementing terminal roaming control according to claim 15, wherein the access request is a registration request and/or a call request.

The method for implementing terminal roaming control according to claim 15, wherein, after receiving the access request and obtaining the roaming control information, the method further comprises: performing a legality of the access terminal.

The method for implementing terminal roaming control according to any one of claims 15 to 18, wherein the control basis information is an IP address segment.

The method for implementing terminal roaming control according to claim 19, wherein when the access request is a call request, the method further includes: after the access terminal completes the call, the access terminal The home IP address, the IP address at which the access request is sent, and the roaming control information between the two IP addresses record the incoming call slip.