KR100333739B1 - Interworking method between gmpcs network and cellular network for supplementary services - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to an additional service interworking method between a satellite communication network and a wireless communication network.

2. The technical problem to be solved by the invention

The present invention is to provide an additional service interworking method between a satellite communication network and a wireless communication network that can provide an additional service by using a wireless communication network or a satellite communication network according to the service availability of the wireless communication network.

3. Summary of Solution to Invention

The present invention relates to an additional service interworking method between a wireless communication network and a satellite communication network having different protocols using an interworking device, wherein the translation and translation of the additional service related command between the satellite communication protocol and the wireless communication network protocol is performed by the interworking device. A first step of performing a function of storing related information; And based on the interworking device, when the subscriber is in the service area of the wireless communication network, provides an additional service by using the wireless communication network, and automatically roams to the satellite communication network when it is out of the service area of the wireless communication network. And providing a supplementary service using the satellite communication network, wherein the supplementary service is registered for the authorized dual-mode subscriber in the satellite communication network and the wireless communication network in order to provide the supplementary service. Third step; Registering a password for using a supplementary service of a dual mode subscriber in the satellite communication network and the wireless communication network; A fifth step of checking a password registered in the fourth step and a password input by the subscriber and activating an additional service according to the subscriber's request if the password is matched; A sixth step of checking the password registered in the fourth step and the password input by the subscriber and deactivating the additional service according to the subscriber's request if the password is matched; And a seventh step of deleting the additional service registered in the third step according to the request of the authorized dual mode subscriber in the satellite communication network and the wireless communication network.

4. Important uses of the invention

The present invention is used for interworking with an additional service between a satellite communication network and a wireless communication network having different protocols.

Description

Interworking method between gmpcs network and cellular network for supplementary services}

The present invention relates to a method of interworking with supplementary services between a satellite communication network and a wireless communication network, and more particularly, when a subscriber is in a service area of a wireless communication network by using an interworking device for converting and translating additional service related commands and storing these related information. In the method of interworking with the supplementary service between the satellite communication network and the wireless communication network to provide an additional service by using a wireless communication network, and roaming automatically to a satellite communication network when the service area of the wireless communication network is out of service. It is about.

In general, a satellite communication network is a network constructed to allow subscribers to make or receive calls with their number and their satellite communication terminals anywhere in the world by using several satellites and earth stations on the global area. Say In general, wireless subscribers can make mobile phone calls with their mobile terminals. However, in reality, since the wireless communication network cannot service all the regions, there are some dead zones in the city as well as in the mountains or the ocean. In addition, there is a problem in that it is not possible to receive a wireless communication service subscribed to because the wireless communication standard protocol is different for each country and service provider. In addition, satellite communication is a service for providing voice and data communication using satellites. Since the conventional orbit satellites located 36,000km over the earth, voice communication was almost impossible due to voice delay. However, in recent years, mobile satellite communication using low-orbit satellites floating hundreds of kilometers above the earth has come to enjoy the advantages of satellite communication that can provide a global service area without the disadvantages of conventional voice delay. However, such satellite communication has a problem that the subscriber must pay an expensive satellite fee because the call must always go through the satellite. To improve this, interworking between two networks using an Interworking Function (IWF), which translates and converts protocols between satellite and wireless networks, and maps internal identification numbers used in both networks. Research to make this possible is in full swing. In particular, the additional services that a subscriber subscribes to in each of the subscription networks are unique to each of the subscription networks, and if the subscribers cannot receive these additional services when interworking, they will feel great inconvenience. Therefore, when interworking between heterogeneous networks, it is necessary to find an efficient and appropriate way to use these additional services at the same time.

The present invention has been proposed to meet the above requirements, and provides an additional service interworking method between a satellite communication network and a wireless communication network that can provide an additional service using a wireless communication network or a satellite communication network according to the service availability of the wireless communication network. Its purpose is to.

That is, the present invention proposes an interworking apparatus (IWF) that enables the use of supplementary services between a satellite communication network based on the GSM standard and a wireless communication network based on the IS-41 standard. The interworking apparatus stores the subscriber profile of the supplementary service between the two networks and translates the protocol between the two networks of the supplementary service to each other so that the subscriber can conveniently use the supplementary services of each network as if in a single network. As described above, the present invention provides an additional service interworking between a satellite communication network and a wireless communication network having different protocols through an interworking device, so that the subscriber may receive the additional service of the satellite communication network or the wireless communication network even when the subscriber is outside the coverage area of the wireless communication network. To help.

1 is a network configuration including a satellite communication network and a wireless communication network applied to the present invention.

2 is a flowchart illustrating an additional service registration process of a dual mode subscriber for interworking of additional services between a satellite communication network and a wireless communication network according to the present invention;

3 is a flowchart illustrating a process of registering and deleting an additional service of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

Figure 4 is a flow diagram illustrating an embodiment of a supplementary service activation process of a dual mode subscriber for interworking of supplementary services between a satellite communication network and a wireless communication network according to the present invention.

FIG. 5 is a flowchart illustrating a process of deactivating an additional service of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

6 is a flowchart illustrating a password registration process of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention;

* Description of the main parts of the drawing

10: satellite communication network 20: wireless communication network

13: Mobile Satellite Exchange Center (MSSC)

14: Satellite communication network visit location register (GMPCS VLR)

15: Interlocking Device (IWF) 23: Home Location Register (HLR)

24: Visiting location register of wireless communication network (IS-41 VLR)

25: Mobile Exchange Center (MSC)

In order to achieve the above object, the present invention provides a method for interworking with an additional service between a wireless communication network and a satellite communication network having different protocols using an interworking device, wherein the additional service between the satellite communication network protocol and the wireless communication network protocol is performed by the interworking device. A first step of performing a function of converting and translating a related command and storing related information; And based on the interworking device, when the subscriber is in the service area of the wireless communication network, provides an additional service using the wireless communication network, and automatically roams to the satellite communication network when it is out of the service area of the wireless communication network. And providing a supplementary service using the satellite communication network, wherein the supplementary service is registered for the authorized dual-mode subscriber in the satellite communication network and the wireless communication network in order to provide the supplementary service. Third step; Registering a password for using a supplementary service of a dual mode subscriber in the satellite communication network and the wireless communication network; A fifth step of checking a password registered in the fourth step and a password input by the subscriber and activating an additional service according to the subscriber's request if the password is matched; A sixth step of checking the password registered in the fourth step and the password input by the subscriber and deactivating the additional service according to the subscriber's request if the password is matched; And a seventh step of deleting the additional service registered in the third step according to the request of the authorized dual mode subscriber in the satellite communication network and the wireless communication network.

The present invention provides a supplementary service provided by each network in an interworking device (IWF) in interworking between a satellite communication network based on the European wireless communication standard GSM and a wireless communication network based on the North American wireless communication standard IS-41. By converting and translating the protocol, the subscriber is provided regardless of the network, so that the subscriber can conveniently use the selected supplementary service regardless of the location.

That is, the present invention uses an interworking device (IWF) that operates between a satellite communication network based on the GSM standard and a wireless communication network based on the IS-41 standard, and mutually provides a protocol for additional services provided by the two networks. By translating and storing additional service information used in the two networks, it is possible to provide interworking of the supplementary service between the satellite communication network and the wireless communication network having different protocols.

To this end, the present invention provides a dual-mode subscriber using the IS-41 wireless communication network as a home and additionally using the GSM communication satellite communication network, which is provided only in the satellite communication network. When there is a need for an additional service, the satellite network converts the protocol of the satellite network into a protocol of the wireless network through an interlocking device so that the dual mode subscriber can use any other service between two different networks in using the additional service. Procedures are also convenient without the need.

Therefore, according to the present invention, when the subscriber is within the coverage area of the wireless communication network, the subscriber is provided with an additional service through the wireless communication network, and when the subscriber is out of coverage, the satellite communication network is automatically provided using the satellite communication network without any other operation. Can be provided with additional services.

Looking at the features of the present invention.

In the present invention, the home is an IS-41 network, and when there is a request for an additional service related operation for a dual mode subscriber currently registered in the GSM network, the subscriber converts and translates this command in an interworking device so that the subscriber can use the wireless communication network. Even if the coverage is out of coverage, the additional service of the wireless communication network can be provided.

In order to perform additional service interworking functions (registration, deregistration, activation, deactivation, inquiry, password, etc.) provided only in a satellite communication network in a dual mode terminal operating in a satellite communication network, an interlocking device is connected to a home location register in a satellite communication network. You must perform the same function. In this case, the interoperation apparatus does not need to convert a supplementary service related message in a satellite communication network into a supplementary service related message in a wireless communication network and convert a protocol in a satellite communication network into a protocol used in a wireless communication network.

Since the supplementary services provided only by the satellite communication network must be handled by the interlocking device, the interlocking device must perform the function of the home location register of the satellite communication network.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, in order to help the understanding of the present invention, a network configuration of a satellite communication network and a wireless communication network is as follows.

1 is a diagram illustrating a network including a satellite communication network and a wireless communication network according to the present invention.

First, the satellite communication network 10 includes a mobile satellite switching center (MSSC) 13, a satellite communication network side visit location register (GMPCS VLR) 14, and an interworking device (IWF) for interworking between two heterogeneous networks ( 15) and conforms to the GSM standard, the European standard. Further, the wireless communication network 20 includes a wireless communication network side home location register (HLR) 23, a wireless communication network side visit location register (IS-41 VLR) 24, and a mobile switching center (MSC) 25; In accordance with IS-41.C.

In detail, the mobile satellite exchange center 13 receives a signal from the satellite, and refers to an exchange that performs a role of transmitting the signal through the terrestrial network. The mobile satellite switching center 13 performs the same function as the mobile switching center 25 of the wireless communication network, but differs in that it processes signals from satellites.

The satellite communication network visited location register 14 is a register held by the satellite communication network 10, and when a mobile subscriber leaves his home area and is registered in a satellite or other area that can serve this service in a satellite or wireless communication network. Refers to a database that temporarily stores routing information about subscribers and subscriber information.

The interlocking device 15 functions as an intermediate mediator so that two or more networks having different protocols can roam without interruption as if they are one network. The interworking device 15 converts and translates protocols between the two networks. Refers to the device to perform.

The wireless communication network side home location register (23) is a home location register held by the wireless communication network (20), which permanently stores all subscriber information and additional service information for a mobile subscriber and also stores a current location information of the subscriber. Say. Since all the basic information about the subscriber is stored in the home location register 23, the subscriber information is first obtained from the home location register 3 even when the system performs any processing for this subscriber.

The wireless communication network side visit location register 24 is a register held by the wireless communication network 20, and when a mobile subscriber leaves his home area and is registered in another service area of the wireless communication network 20, Refers to a database for temporarily storing routing information and subscriber information.

The wireless communication network side mobile switching center 25 performs the same function as the satellite communication network side mobile switching center 13, but refers to an exchange in which only a satellite signal processing part is excluded.

In order to perform an additional service interworking function (registration, deregistration, activation, deactivation, inquiry, password, etc.) provided only in the satellite communication network 10 in the dual mode terminal operating in the satellite communication network 10 described above, the interlocking device 15 ) Should perform the same function as the home location register (not shown) in the satellite communication network (10). In this case, the interlocking device 15 requires a function of converting an additional service related message in the satellite communication network 10 into an additional service related message in the wireless communication network 20, and a protocol in the satellite communication network 10. It is not necessary to convert the function to a protocol used in the wireless communication network 20. Since the additional service provided only by the satellite communication network 10 must be processed by the interlocking device 15, the interlocking device 15 should perform the function of the home location register of the satellite communication network 10.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIG. 1.

2 is a flowchart illustrating an additional service registration process of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

First, the mobile satellite exchange center 13 transmits the additional service registration request message MAP_REGISTER_SS received from the terminal to the visited location register 14. The satellite communication network side visit location register 14 transmits the additional service registration request message MAP_REGISTER_SS received from the mobile satellite switching center 13 to the interoperation device 15.

Receiving the additional service registration request message (MAP_REGISTER_SS), the interlocking device (15) performs the processing of the additional service registration request, and then sends a message (MAP_REGISTER_SS_ACK) including a confirmation mark to the satellite communication network side visited location register (14). send. Upon receiving the supplementary service registration confirmation message (MAP_REGISTER_SS_ACK), the satellite communication network-side visited location register (14) transmits this message (MAP_REGISTER_SS_ACK) to the mobile satellite switching center (13) indicating that processing for the supplementary service registration request has been performed.

The interlocking device 14 transmits a message (MAP_INS_SUBS_DATA) containing the corresponding supplementary service related change in the subscriber profile to the satellite communication network side visit location register 14.

3 is a flowchart illustrating a process of registering and deleting an additional service of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

First, the mobile satellite switching center 13 transmits the additional service registration deletion request message MAP_ERASE_SS received from the terminal to the satellite communication network visited location register 14.

The satellite communication network-side visited location register 14 transmits the additional service registration deletion request message MAP_ERASE_SS received from the mobile satellite exchange center 13 to the interworking device 15. At this time, the interlocking device 15 having received this message MAP_ERASE_SS performs a process for the request for deleting an additional service registration, and then sends a message (MAP_ERASE_SS_ACK) including a confirmation mark to the satellite communication network side visited location register 14. send.

The satellite communication network-side visited location register 14 receiving the supplementary service registration deletion confirmation message (MAP_ERASE_SS_ACK) transmits it to the mobile satellite switching center 13 again.

In this case, since the interworking device 15 should inform the satellite communication network side visit location register 14 of the additional service related change in the subscriber profile, the interworking device 15 transmits a message (MAP_INS_SUBS_DATA) including the additional service related change.

4 is a flowchart illustrating an embodiment of an additional service activation process of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

First, the mobile satellite switching center 13 transmits the additional service activation request message MAP_ACTIVATE_SS received from the terminal to the satellite communication network visited location register 14. The satellite communication network visited location register 14 transmits this message MAP_ACTIVATE_SS received from the mobile satellite exchange center 13 back to the interlocking device 15.

Since the interlocking device 15 that has received the supplementary service activation request message MAP_ACTIVATE_SS needs to check the password to activate the supplementary service, the interworking device 15 includes a request for a password necessary for activating the supplementary service to the satellite communication network visited location register 14. Send a message (MAP_GET_PW). The satellite communication network visited location register 14 which has received this message MAP_GET_PW transmits it to the mobile satellite switching center 13 again.

The mobile satellite switching center 13 transmits a message (MAP_GET_PW_ACK) including the password received from the subscriber to the satellite communication network side visit location register 14, and the satellite communication network side visit location register 14 again transmits the satellite communication network side visit location. Send to registrar 14. The satellite communication network-side visited location register 14 sends this message (MAP_GET_PW_ACK), which includes the password received from the subscriber, back to the interworking device 15.

Receiving the password message MAP_GET_PW_ACK, the interlocking device 15 checks the password required for the additional service activation request, and if the password matches, performs the activation process for the corresponding additional service, and then includes a message (MAP_ACTIVATE_SS_ACK). ) Is transmitted to the satellite communication network side visit location register (14). Upon receiving the password confirmation message MAP_ACTIVATE_SS_ACK, the satellite communication network-side visited location register 14 transmits a password confirmation message MAP_ACTIVATE_SS_ACK to the mobile satellite switching center 13 again indicating that processing for the additional service activation request has been performed.

At this time, since the interworking device 15 should inform the satellite communication network side visited location register 14 of the changed supplementary service-related information in the subscriber profile, the satellite communication network side visited location register 14 includes a message (MAP_INS_SUBS_DATA) including the contents thereof. To send).

FIG. 5 is a flowchart illustrating a process of deactivating an additional service of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

First, the mobile satellite switching center 13 transmits the additional service deactivation request message MAP_ACTIVATE_SS received from the terminal to the satellite communication network visited location register 14. The satellite communication network-side visited location register 14 transmits the additional service deactivation request message MAP_ACTIVATE_SS received from the mobile satellite switching center 13 to the interworking device 15 again.

Since the interworking device 15 that receives the additional service deactivation request message MAP_ACTIVATE_SS needs to check the password to deactivate the additional service, the interworking device 15 includes a request for a password necessary for deactivating the additional service to the satellite communication network visited location register 14. Send a message (MAP_GET_PW). Upon receiving the password request message MAP_GET_PW, the satellite communication network side visited location register 14 transmits the message MAP_GET_PW to the mobile satellite switching center 13 again.

The mobile satellite switching center 13 transmits a message (MAP_GET_PW_ACK) including the password received from the subscriber to the satellite communication network side visited location register 14. The satellite communication network visited location register 14 transmits this message (MAP_GET_PW_ACK) to the interlocking device 15 again.

Receiving the message (MAP_GET_PW_ACK) including the password received from the subscriber, the interworking device 15 checks the password required for the additional service deactivation request, and if the password is matched, performs the deactivation process of the corresponding additional service, and then displays a confirmation indication The message (MAP_ACTIVATE_SS_ACK) is transmitted to the satellite communication network side visit location register 14. The satellite communication network-side visited location register 14 which receives the additional service deactivation confirmation message MAP_ACTIVATE_SS_ACK transmits it to the mobile satellite switching center 13 again.

At this time, since the interworking device 15 should inform the satellite communication network side visited location register 14 of the changed supplementary service-related information in the subscriber profile, the satellite communication network side visited location register 14 includes a message (MAP_INS_SUBS_DATA) including the contents thereof. To send).

6 is a flowchart illustrating a password registration process of a dual mode subscriber for interworking of an additional service between a satellite communication network and a wireless communication network according to the present invention.

First, the mobile satellite exchange center 13 transmits the password registration request message MAP_REGISTER_PW received from the terminal to the interlocking device 15.

The satellite communication network side visit location register 14 transmits the password registration request message MAP_REGISTER_PW received from the mobile satellite switching center 13 to the interworking device 15. Since the interworking device 15 that has received this message MAP_REGISTER_PW needs a password to register a password, it transmits a message MAP_GET_PW requesting the necessary password to the satellite communication network side visited location register 14.

Upon receiving the password request message (MAP_GET_PW), the satellite communication network visited location register 14 transmits it to the mobile satellite switching center 13 again, and in response to this message (MAP_GET_PW), a message (MAP_GET_PW_ACK) containing the corresponding password is sent. The satellite communication network transmits to the visited location register 14.

The satellite communication network side visit location register 14 transmits a message MAP_GET_PW_ACK including the password received from the subscriber back to the interworking device 15.

After receiving the password message MAP_GET_PW_ACK, the interlocking device 15 receives the password required for the password registration request, and then sends a message MAP_GET_PW requesting the password again to confirm the password. To send. The satellite communication network visited location register 14, which has received this message MAP_GET_PW, transmits to the mobile satellite switching center 13 again.

The mobile satellite switching center 13 transmits a message (MAP_GET_PW_ACK) including the password received from the subscriber to the satellite communication network side visited location register 14. The satellite communication network side visit location register 14 transmits this message (MAP_GET-PW_ACK) including the password received from the subscriber back to the interworking device 15.

Receiving the password message (MAP_GET_PW_ACK) for the password reconfirmation, the interlocking device (15) reconfirms the password and then sends a message (MAP_GET_PW) requesting the password again to reconfirm the password. Send it again). The satellite communication network visited location register 14 which has received this message MAP_GET_PW transmits it to the mobile satellite switching center 13 again.

The mobile satellite exchange center 13 transmits a message (MAP_GET_PW_ACK) including the password received from the subscriber to the satellite communication network side visited location register 14 and transmits the message to the interworking device 15 again.

Receiving the message (MAP_GET_PW_ACK) including the password, the interlocking device 15 checks the password required for the password registration request. MAP_REGISTER_PW_ACK) is transmitted to the satellite communication network side visit location register 14.

The satellite communication network side visit location register 14 receiving the password confirmation message MAP_REGISTER_PW_ACK transmits it back to the mobile satellite switching center 13.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention uses a mutual interworking device that operates between a satellite communication network based on the GSM standard and a wireless communication network based on the IS-41 standard. By storing the additional service information used in the two networks, it provides the interworking of the supplementary service between the satellite communication network and the wireless communication network having different protocols, and if the subscriber is in the service area of the wireless communication network, the additional service through the wireless communication network. If the coverage is out of coverage, there is an effect that can be provided additional services provided by the satellite communication network automatically using a satellite communication network without a separate operation.

Claims (1)

In a method of interworking with an additional service between a wireless communication network and a satellite communication network having different protocols using an interlocking device, A first step of performing, by the interworking device, a function of converting and translating additional service related commands between the satellite communication network protocol and the wireless communication network protocol and storing related information; And Based on the interworking device, if the subscriber is in the service area of the wireless communication network, the subscriber may provide an additional service by using the wireless communication network, and automatically roam to the satellite communication network when it is out of the service area of the wireless communication network. A second step of providing an additional service using the satellite communication network, In order to provide the additional service, Registering an additional service for the authorized dual mode subscriber in the satellite communication network and the wireless communication network; Registering a password for using a supplementary service of a dual mode subscriber in the satellite communication network and the wireless communication network; A fifth step of checking a password registered in the fourth step and a password input by the subscriber and activating an additional service according to the subscriber's request if the password is matched; A sixth step of checking the password registered in the fourth step and the password input by the subscriber and deactivating the additional service according to the subscriber's request if the password is matched; And A seventh step of deleting the additional service registered in the third step according to a request of the authorized dual-mode subscriber in the satellite communication network and the wireless communication network; Additional service interworking method between a satellite communication network and a wireless communication network comprising a.