KR20050092615A - System and method for one phone service combinig cellular network and wireless voip network - Google Patents

Abstract

The present invention provides a VoIP voice call service and a mobile phone supplementary service through a wireless IP network. When a subscriber is present in a coverage area of a wireless data network, the present invention uses a VoIP service through a wireless data network. The present invention relates to a one-phone service system and method combining mobile phone and wireless VoIP for use.

 The present invention comprises a one-phone service network composed of a call server, location server, one-phone service gateway, trunk gateway, wireless IP network, etc. to provide interworking with other networks such as PSTN, mobile communication network and VoIP network; One-phone service terminal which is a dual mode mobile telephone terminal with a built-in wireless VoIP function; And a one-phone service-compatible mobile communication network upgraded to provide one-phone service to the one-phone service terminal in connection with the one-phone service network.

Unlike the existing one-phone system with the concept of wirelessly making the last mile of the wire, the system proposed in the present invention replaces the access network of the mobile telephone network through a wireless IP network such as a Bluetooth network, a wireless LAN, and the portable Internet. It is a system of access network extension concept of mobile communication network that can support incoming call of mobile phone, and it can provide various additional services provided by existing mobile phone network through wireless IP network.

Description

System and Method for One Phone Service Combinig Cellular Network and Wireless VoIP Network combining Mobile Communication Network and Wireless WiFi Network

The present invention provides a VoIP voice call service and a mobile phone supplementary service through a wireless IP network. When the subscriber is in a coverage area of the wireless IP network, the subscriber calls using a cheaper VoIP service through the wireless IP network. The present invention relates to a structure and method of a one-phone service system in which a mobile telephone network and a wireless VoIP network are combined to enable a mobile telephone service.

As mobile phone service is becoming more common, the call patterns of ordinary users are using a landline phone at home and office and a mobile phone in other areas. The most ideal call pattern is to use only mobile terminal anytime and anywhere, but most users can't do that because of the strengths of the wired area such as PABX function and FAX line, and also in terms of call quality and cost. This is because wired lines are advantageous.

In view of the above, conventionally, home and office wired telephones use home wireless IP network (hereinafter referred to as "wireless IP network") technology that supports VoIP services such as Bluetooth and wireless LAN. Using a dual-mode terminal that supports wireless communication and a mobile phone network and a wireless IP network at the same time, a system in which a home and office calls through a wireless IP network through a VoIP method and a mobile phone network in other areas is used.

However, since the wireless IP network is a concept of an extension of a wired network, such a conventional system has a disadvantage in that it is not possible to use additional mobile communication services such as SMS, coloring, caller ID, etc. when making a VoIP call in a home. In addition, the calling party does not know whether the dual mode terminal is registered with VoIP through the wireless IP network. Unlike the mobile communication network, since the coverage of the wireless IP network is extremely limited, the reception success rate of the dual mode terminal through the VoIP network is mobile. Much lower than over a telephone network, VoIP calls from dual-mode terminals are less useful. Moreover, since there is no deregistration procedure in the VoIP network, even if the dual mode terminal is registered in the VoIP network, it is possible to know that the terminal is located in the wireless IP network coverage area so that it is possible to receive VoIP calls by calling the terminal. In this case, there is a problem that the delay becomes large.

In order to solve the above problems, the present invention regards a wireless IP network that supports VoIP such as a Bluetooth network and a wireless LAN as an extension concept of a mobile communication network rather than a wired network. It is an object of the present invention to provide a one-phone service system and method combining a mobile communication network and a wireless VoIP network to enable the use of.

In order to achieve the above object, the present invention includes a one-phone service network configured to include a call server, a location server, a one-phone service gateway, a trunk gateway, a wireless IP network, and the like to provide interworking with other networks such as a PSTN, a mobile communication network, and a VoIP network; A one-phone service terminal which is a dual mode mobile telephone terminal having a built-in wireless VoIP function; And a one-phone service system consisting of a mobile phone and a wireless VoIP phone, including a one-phone service-compatible mobile communication network for providing one-phone service to one-phone service terminals in association with a one-phone service network.

In addition, to achieve the above object, the present invention provides a one-phone service providing method through the one-phone service system, a) a location server if the one-phone service terminal enters the one-phone service network coverage area and successfully accesses the wireless IP network; Performing a VoIP location registration in the mobile station; b) the location server notifying the home location register of the one-phone service-compatible mobile communication network through the one-phone service gateway; and c) the home location register of the one-phone service-compatible mobile network. It provides a VoIP registration method of the mobile phone-wireless VoIP phone one-phone service system, characterized in that consisting of the steps of changing.

And, the present invention, a) when the one-phone service terminal is connected to the wireless IP network and registered the wireless VoIP location is out of the one-phone service network coverage area and the wireless IP network connection is released, the mobile phone corresponding to the one-phone service through the mobile registration network location registration procedure Performing location registration informing the home location register (HLR) of the communication network; b) the home location register notifying the location server through the one phone service gateway of the one phone service network; c) in the one phone service network. The location server provides a method for releasing VoIP registration of a one-phone service system combining a mobile phone and a wireless VoIP phone, characterized in that it comprises a step of changing a VoIP location registration state of a corresponding one-phone service terminal.

In addition, to achieve the above object, the present invention provides a method for providing a one-phone service through the above system, the method comprising: a) a call forwarded by a caller using a called number of a one-phone service network to a call server of a one-phone service network; b) inquiring, by the call server, of the location server to determine whether the corresponding one-phone service terminal is registered in the one-phone service network and the location of the VoIP; c) if the one-phone service terminal is registered in the one-phone service network, setting up a call with the one-phone service terminal; otherwise, relaying the corresponding call to the one-phone service-compatible mobile communication network through the one-phone service gateway. The present invention provides an incoming call setup and relay method for a one-phone service system combining a mobile phone and a wireless VoIP phone.

In another aspect, the present invention provides a one-phone service providing method through the above system, a) when the caller makes a call using a mobile phone number, the mobile communication switch of the mobile phone corresponding to the one-phone service uses information included in the home location register. Relaying the call to the one-phone service network through the mobile telephone network gateway when the corresponding terminal is the one-phone service terminal and the wireless VoIP is registered; b) transmitting, by the one-phone service gateway of the one-phone service network, the call setup request to the call server; c) inquiring, by the call server of the location server, of the location of the one-phone service terminal; d) the VoIP call server establishes an incoming call with the one-phone service terminal, and establishes a call path between the calling party and the incoming one-phone service terminal through the one-phone service gateway and makes a call. The present invention provides a method for setting up an incoming call of a mobile phone in a one-phone service system combining a VoIP phone.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the configuration of a one-phone service system combining a mobile phone and a wireless VoIP phone according to an embodiment of the present invention, Figure 2 is a connection between a one-phone service-compatible mobile communication network and a one-phone service network in FIG. A block diagram showing the structure.

In the one-phone service system according to the present invention, the call server 101, the location server 102, the one-phone service gateway 103, the trunk gateway 104, the wireless IP network 110, and the like are interconnected through the IP network 105. One phone service network 100 having a configuration; One phone service terminal 106; And a mobile communication network 120 for one-phone service. The one-phone service compatible mobile communication network 120 includes a mobile communication switch 201, a signal network switch 202, a home location register 203, and the like. The one-phone service gateway 103 of the one-phone service network 100 is mobile. The communication switch 201 is connected to the PCM trunk and the signal network switch 202 is connected to the SS7 signal trunk.

The call server 101 performs the function of a conventional VoIP call server, such as a Session Initiation Protocol (SIP) proxy server.

 The location server 102 is connected to the home location register 203 of the mobile phone network corresponding to the one-phone service in addition to the conventional VoIP Registar server function. 111) to manage whether or not. Since the location server 102 includes information such as a corresponding mobile phone number and a VoIP called number in addition to the general VoIP location registration information, the location server 102 can convert between a VoIP address, a mobile phone number, and a VoIP called number.

When the location server 102 receives the VoIP location registration message from the one-phone service terminal 106, after performing the normal VoIP location registration procedure, the one-phone service corresponding mobile communication network 120 through the one-phone service gateway 103 The home location register 203 is notified. In addition, when the deregistration message is received from the home location register 203 through the one-phone service gateway 103, the location server 102 releases the VoIP location registration of the corresponding terminal 106.

The one-phone service gateway 103 performs a conversion function between the VoIP control message and the mobile communication core network signal message of the one-phone service-compatible mobile communication network 120 to support the mobile communication supplementary service through the one-phone service network 100. In addition, the VoIP location registration message from the one-phone service location server 102 is converted into a mobile communication core network signal message and transmitted to the home location register 203 of the one-phone service-compatible mobile communication network 120 or the one-phone service-compatible mobile communication network. The registration message in the form of a mobile communication core network signal message from the home location register 203 of 120 is converted into a VoIP location registration message and transmitted to the one phone service location server 102.

The wireless IP network 110 is a wireless data communication network such as a wireless LAN, a Bluetooth network, a mobile Internet, and the like that support QoS (Qulaity Of Service).

The trunk gateway 104 is for interworking with a PSTN network or a mobile communication network, and has the same function as a conventional VoIP gateway.

The one-phone service terminal 106 is a terminal having a wireless IP network 110 connection function and a VoIP call function through the mobile phone terminal 122 in addition to the function of the general mobile communication terminal 122. When the one-phone service terminal 106 enters the one-phone service network coverage area 111 from the outside and successfully accesses the wireless IP network 110, the one-phone service terminal 106 transmits a VoIP location registration message to the location server 102. Perform registration. On the contrary, when the one-phone service terminal 106 enters the outside in the one-phone service network coverage area 111 and the connection to the wireless IP network 110 is released, the one-phone service terminal 106 performs location registration through the one-phone service-compatible mobile communication network 120. . At this time, the transmitted registration message includes the same contents as the general registration message, but indicates the location registration due to disconnection of the wireless IP network 110 by using an extra field among the fields constituting the message.

The one-phone service compatible mobile communication network 120 is different from the conventional mobile communication network in that the function of the home location register 203 is expanded to support the one-phone service. The home location register of a typical mobile communication network includes subscriber profile information such as access capability, basic service information, and additional service information of each mobile communication terminal, and current location information. The home location register 203 of the mobile phone network corresponding to the one-phone service 120, in addition to the information of the general home location register, the one-phone service flag indicating whether to subscribe to the one-phone service, and the VoIP location registration information indicating the VoIP registration status through the one-phone service network. It includes a one-phone service called number and VoIP address, and a network selection flag indicating network priority of each service. The home location register 203 of the mobile phone network corresponding to the one phone service receives the VoIP location registration message from the location server 102 of the one phone service network 100 through the one phone service gateway 103 and the signal network switch 202. Update the VoIP location registration information.

The home location register 203 of the mobile phone network corresponding to the one-phone service processes the location registration message from the general mobile communication terminal 122 in the home location register of the conventional mobile communication network when the general location registration message is received. Perform the same conventional location registration procedure. However, when a location registration message is received due to disconnection of the wireless IP network 110, a general location registration procedure is performed using the remaining information except for a field indicating that the location registration is due to disconnection of the wireless IP network 110. ; If the location registration is successful, by checking the one-phone service flag of the subscriber terminal to determine whether the subscriber terminal is a general mobile communication terminal 122 or one-phone service terminal 106, if the one-phone service terminal 106, VoIP location registration Examine the information to determine whether the current VoIP location is registered, and if the current VoIP location is registered to the location server 102 of the one-phone service network 100 through the signal network switch 202 and the one-phone service gateway 103 This informs the location server 102 to perform the VoIP location registration release procedure.

3 is a flowchart illustrating a procedure for performing VoIP location registration when the one-phone service terminal 106 outside the one-phone service network coverage enters the coverage area of the one-phone service network 100. The one-phone service terminal 106 enters the one-phone service network coverage area 111 from outside the one-phone service network coverage area 111 and successfully registers the VoIP location with the location server 102 when the connection to the wireless IP network 110 is successful. The message is transmitted (S101). The location server 102 changes the VoIP location registration information through the authentication with the one phone service terminal 106 and the VoIP location registration procedure, sends a final confirmation message to the one phone service terminal 106, and then transfers the VoIP address to the mobile phone number. The VoIP location registration message is transmitted to the home location register 203 of the one-phone service terminal 106 through the one-phone service gateway 103 (S102, S103, and S104). The home location register 203 updates the VoIP location registration information and sends a confirmation message to the location server 102 via the one phone service gateway 103.

4 is a flowchart illustrating a procedure for releasing VoIP registration when the one-phone service terminal 106 in the one-phone service coverage area enters the one-phone service coverage area. When the one-phone service terminal 106 enters the one-phone service coverage area 111 from the inside of the one-phone service coverage area 111 and the connection with the wireless IP network 110 is released, the one-phone service terminal 106 may be disconnected from the wireless IP network 110. A location registration message having a field indicating a location registration is transmitted to the home location register 203 through a location registration message transmission procedure of a typical mobile communication network (S201). The home location register 203 updates the location registration information by performing a normal authentication and location registration procedure with the one phone service terminal 106, and then sends a final confirmation message to the one phone service terminal 106. The VoIP registration transmission message is transmitted to the location server 102 through 103 (S202 and S203). The location server 102 releases the VoIP location registration by updating the VoIP location registration information, and then transmits a confirmation message to the home location register 203 through the one-phone service gateway 103 (S204 and S205).

5 shows that when a caller calls a one-phone service called number in a PSTN or a general mobile communication network and the call is received by the one-phone service network 100, the incoming one-phone service terminal 106 is not present in the one-phone service network 100 coverage. In this case, it is a procedure diagram showing the procedure of forwarding the call to the mobile phone corresponding to the one-phone service.

The call originated using the called number of the one-phone service network 100 in the PSTN or the general mobile communication network 130 is transmitted to the call server 101 through the trunk gateway 104 (S301).

When the call server 101 receives a call setup request from the trunk gateway 104, the call server 101 queries the location server 102 to confirm the VoIP location registration status of the incoming call service terminal 106, and if the VoIP location registration has been performed. Establish a VoIP incoming call through the wireless IP network 110; If the VoIP location registration is released or there is no response from the called subscriber when setting up the incoming call, after converting the one-phone service destination address into the mobile phone number using the information of the location server 102 according to the call transfer condition setting of the subscriber, The call setup request is transmitted to the one-phone service-compatible mobile communication network 120 through the one-phone service gateway 103 (S302, S303, S304).

The call server 101 transmits a call progress message and a call connection message transmitted through the one phone service gateway 103 to the trunk gateway (S305, S306, S307, and S308).

Thereafter, the confirmation message for the call connection is delivered directly from the trunk gateway 104 to the one-phone service gateway 103, thereby making a call between the calling party and the called party through the trunk gateway 104 and the one-phone service gateway 103. A road is formed and a call is made.

In the case where the originating network is a one-phone service-compatible mobile communication network 120, it is replaced by the one-phone service gateway 103 instead of the trunk gateway 104 in FIG. 5, and when the originating network is the one-phone service network 100, the trunk in FIG. If the originating network is a VoIP network 140, instead of the gateway 104, and if the originating network is a VoIP network 140, in place of the trunk gateway 104 in Fig. 5 Each follows the same procedure as in FIG.

FIG. 6 shows that a mobile communication subscriber of a one-phone service compatible mobile communication network 120 calls a mobile phone number of a one-phone service terminal 106 to a mobile communication switch 201 of a one-phone service compatible mobile communication network 120. When received, when the incoming priority of the incoming one-phone service terminal is set to the one-phone service network priority, and the incoming one-phone service terminal exists in the coverage area of the one-phone service network, the procedure showing a procedure for transferring the call to the one-phone service network is also shown. to be.

The mobile communication switch 201 of the mobile phone network corresponding to the one-phone service 120 queries the home location register 203 for the location of the called terminal when a call setup request is received from the mobile communication terminal 122 (S401 and S402).

The home location register 203 is called terminal when the one-phone service terminal 106, the incoming priority is set to the one-phone service network 100, and the incoming one-phone service terminal 106 is VoIP registered, outgoing movement The communication switch 201 is requested to transmit the corresponding call through the one-phone service gateway 103 (S402, S403, S404, S405).

The one-phone service gateway 103 performs an incoming procedure of the one-phone service network 100, and transmits a call progress and call connection message to the calling mobile communication switch 201, and the calling mobile communication switch 201 sends them to the calling mobile communication. Transferring to the terminal 122, a call path is formed between the originating mobile communication terminal and the incoming one-phone service terminal 106 through the mobile communication switch 201 and the one-phone service gateway 103 to make a call (S406, S407, S408, S409, S410).

If the originating network is the one-phone service network 100, it is replaced with the one-phone service gateway 103 instead of the mobile communication terminal 122 in FIG. 6, and if the originating network is a PSTN or a general mobile communication network, the mobile communication terminal in FIG. Substituting the corresponding one-phone service-compatible mobile communication network 120 and the gateway system between these networks, the same procedure as shown in FIG. 6 is followed.

Although the preferred embodiments of the present invention have been described above, those skilled in the art will readily understand that the present invention is not limited to these embodiments and various modifications and changes can be made without departing from the gist of the present invention.

According to the present invention as described above, the one-phone service provider combining the mobile phone and the wireless VoIP phone can provide the mobile phone incoming service and mobile phone additional service through the wireless IP network in the home, so that the call demand of both home and office It can be integrated and accommodated.

1 is a block diagram schematically illustrating the configuration of a one-phone service system combining a mobile communication network and a wireless VoIP network according to an embodiment of the present invention.

2 is a block diagram schematically illustrating a connection structure between a mobile communication network and a one-phone service network for one-phone service;

3 is a flowchart illustrating a VoIP location registration procedure

4 is a procedure showing a VoIP location registration release procedure

5 is a flowchart illustrating a procedure for transferring a call received to a one-phone service network to a one-phone service-compatible mobile communication network.

6 is a flowchart illustrating a procedure for transferring a call received to a one-phone service-compatible mobile communication network to a one-phone service network.

<Description of the symbols for the main parts of the drawings>

100: one-phone service network 101: call server

102: location server 103: one-phone service gateway

104: trunk gateway 105: IP network

106: one-phone service terminal 110: wireless IP network

120: mobile phone network for one-phone service 122: general mobile communication terminal

201: MSC 202: signaling network switch (STP)

203: Home Location Register (HLR)

Claims (15)

In the one-phone service network 100 interconnected to the IP network 105 for the one-phone service terminal combining the mobile phone and the wireless VoIP phone, A normal VoIP location registration procedure is performed and the one-phone service terminal is connected to the wireless IP network 110 according to whether the one-phone service terminal is in the coverage area 111 of the one-phone service network 100. A location server 102 that performs location registration and deregistration of the one-phone service terminal in association with the corresponding home location register 203 in the corresponding mobile communication network 120; In order to support the mobile communication supplementary service through the one-phone service network 100, the VoIP control message and the signal message of the mobile communication network 120 are converted and the VoIP between the location server 102 and the home location register 203 is converted. And a one-phone service gateway 103 for converting the location registration message and the registration message in the form of a signal message. The one-phone service network according to claim 1, further comprising a call server (101) connected to the IP network (105) and performing a typical VoIP call processing function. The one-phone service network according to claim 1, further comprising a trunk gateway (104) connected to the IP network (105) and serving as a VoIP gateway with the PSTN / mobile communication network. In the mobile communication network 120 corresponding to the one-phone service network 100 interconnected to the IP network 105 for the one-phone service terminal combining the mobile phone and the wireless VoIP phone, In connection with the location server 102 in the one-phone service network 100 according to whether the one-phone service terminal is connected to the wireless IP network 110 according to whether the one-phone service terminal is in the coverage area 111 of the one-phone service network 100. And a home location register (203) for performing location registration and deregistration of the one-phone service terminal. The mobile communication network according to claim 1, wherein the home location register (203) includes a one phone service flag indicating whether the one phone service is subscribed and a network selection flag indicating a priority for each service network. The mobile communication network of claim 1, further comprising a signal network switch (202) for linking with a location server (102) of the one phone service network (100). In the one-phone service terminal combining the mobile phone and the wireless VoIP phone, Depending on whether the one-phone service terminal is connected to the wireless IP network 110 depending on whether the one-phone service terminal is in the coverage area 111 of the one-phone service network 100, or to the location server 102 of the one-phone service network 100 or And a home location register (203) in the mobile communication network (120) corresponding to the one phone service, transmitting a VoIP location registration message or a location registration message of a typical mobile communication network. 8. The one-phone service terminal according to claim 7, wherein the location registration message to the home location register (203) includes an identifier indicating location registration due to disconnection of the wireless IP network (110). In the processing method of the one-phone service network 100 interconnected to the IP network 105 for the one-phone service terminal combining the mobile phone and the wireless VoIP phone, A normal VoIP location registration procedure is performed and the one-phone service terminal is connected to the wireless IP network 110 according to whether the one-phone service terminal is in the coverage area 111 of the one-phone service network 100. A location registration and release step of performing location registration and deregistration of the one-phone service terminal in association with the corresponding home location register 203 in the corresponding mobile communication network 120; In order to support the mobile communication supplementary service through the one-phone service network 100, the VoIP control message and the signal message of the mobile communication network 120 are converted and the VoIP between the location server 102 and the home location register 203 is converted. And a conversion step of converting a location registration message and a registration message in the form of a signal message. 10. The method of claim 9, further comprising a call processing step connected to an IP network (105) to perform a normal VoIP call processing function. 10. The method of claim 9, further comprising: connecting to an IP network (105) to perform a VoIP gateway with a PSTN / mobile communication network. In the processing method of the mobile communication network 120 corresponding to the one-phone service network 100 interconnected to the IP network 105 for the one-phone service terminal combining the mobile phone and the wireless VoIP phone, In connection with the location server 102 in the one-phone service network 100 according to whether the one-phone service terminal is connected to the wireless IP network 110 according to whether the one-phone service terminal is in the coverage area 111 of the one-phone service network 100. And a location registration and release step of performing location registration and deregistration of the one-phone service terminal. In the VoIP registration and deregistration method for the one-phone service for a one-phone service terminal combining a mobile phone and a wireless VoIP phone, Depending on whether the one-phone service terminal is connected to the wireless IP network 110 depending on whether the one-phone service network is in the coverage area 111 of the one-phone service network 100, the one-phone service network 100 to the location server 102 or the one-phone Transmitting a VoIP location registration message or a location registration message of a typical mobile communication network to the corresponding home location register 203 in the mobile communication network 120 corresponding to the service; The location server (102) or the home location register (203) notifying the home location register (203) or the location server (102) via the one-phone service gateway (103); And the home location register (203) or location server (102) changing subscriber location information or VoIP location registration information. In the one-phone service incoming call setting and relay method for a one-phone service terminal combining a mobile phone and a wireless VoIP phone, Transmitting a call made by the caller using the called number of the one-phone service network 100 to the call server 101 of the one-phone service network 100; Inquiring, by the call server (101), of the location server (102) whether the corresponding one-phone service terminal has a VoIP location registered in the one-phone service network (100); As a result of the query, if the one-phone service terminal is registered in the one-phone service network 100, the call is established with the one-phone service terminal. If not, the one-phone service terminal corresponds to the one-phone service corresponding mobile communication network 120 through the one-phone service gateway 103. An incoming call setting and relay method for one-phone service, comprising the step of relaying a call. A method for setting up an incoming call for a one-phone service for a one-phone service terminal combining a mobile phone and a wireless VoIP phone, When the caller makes a call using a mobile phone number, the mobile communication switch 201 of the mobile phone network corresponding to the one-phone service uses the information included in the home location register 203 and the corresponding terminal is the one-phone service terminal and wireless VoIP. Relaying the call to the one-phone service network 100 through the one-phone service gateway 103 if it is registered; Transmitting, by the one-phone service gateway 103, a call setup request to a call server 101; The call server 101 querying the location server 102 to determine the location of the one-phone service terminal; And the call server 101 establishes an incoming call with the one-phone service terminal to establish a call path between the calling party and the incoming one-phone service terminal through the one-phone service gateway 103 to make a call. Method of setting up incoming call for one-phone service system.