Communication network system and communication method

Abstract

The application provides a communication network system, comprising a gateway application server, a smart phone and a fixed network session border controller, the gateway application server accesses a fixed network IMS network and a mobile IMS network simultaneously, the smart phone and the fixed network session border controller communicate through Internet, and the fixed network session border controller accesses the fixed network IMS network and then accesses the mobile IMS network through the gateway application server. In the communication network and the communication method provided by the application, when the smart phone accesses the fixed network IMS network through the fixed network session border controller through Internet in a weak mobile IMS network coverage area, and the smart phone wants to transmit information to the mobile IMS network, the information is relayed through the fixed network IMS network, so that the problem of weak mobile IMS network coverage can be solved.

Description

Technical Field

[0001] This invention relates to the field of communications, and in particular to a communication network system and a communication method. Background Technology

[0002] Currently, existing mobile IMS (IP Multimedia Subsystem) network coverage is incomplete, with many coverage blind spots, posing a significant challenge to the evolution of mobile networks to IMS networks. Due to coverage issues, operators cannot decommission 2G networks on a large scale. Furthermore, users migrating to IMS networks often experience poor performance, leading to complaints and even number portability. Home and commercial fixed-line broadband networks offer excellent coverage in areas with weak mobile IMS coverage. Users can be registered on fixed-line IMS networks using these broadband connections, leveraging the interoperability between fixed-line and mobile IMS networks to address the weak coverage issues of mobile IMS and effectively improve the utilization rate of fixed-line IMS networks. Summary of the Invention

[0003] The purpose of this invention is to provide a communication network system and communication method that can solve the problem of weak signal coverage of mobile IMS networks in certain areas.

[0004] To achieve the above objectives, the present invention provides a communication network system, comprising:

[0005] The system includes a gateway application server, a smartphone, and a fixed-line session boundary controller. The gateway application server is connected to both a fixed-line IMS network and a mobile IMS network. The smartphone and the fixed-line session boundary controller communicate via the Internet. The fixed-line session boundary controller is connected to the fixed-line IMS network and then to the mobile IMS network via the gateway application server.

[0006] Optionally, in the aforementioned communication network system, the smartphone may have several mobile applications installed.

[0007] Optionally, in the aforementioned communication network system, the gateway application server includes a number association database for storing the association between mobile numbers and fixed-line numbers of the user's business account opening platform.

[0008] Optionally, in the aforementioned communication network system, the fixed-line session boundary controller (SBC) and the smartphone communicate via the Internet through Wi-Fi.

[0009] Optionally, in the aforementioned communication network system, the gateway application server has caller ID spoofing and called number spoofing functions; when the APP initiates a call, the gateway application server converts the fixed-line caller ID into a mobile number; when a call is received with a mobile number as the called party, the mobile IMS network first initiates a call with the mobile number as the called party. If the call is not successfully connected, the call is routed to the gateway application server, which modifies the called mobile number to a fixed-line number, routes it to the fixed-line IMS, and finally reaches the APP application.

[0010] Optionally, in the aforementioned communication network system, the smartphone achieves communication functions through the fixed-line session boundary controller and the fixed-line IMS network. The smartphone encrypts the message and sends it to the fixed-line session boundary controller via the Internet. The fixed-line session boundary controller decrypts the message and then sends it to the fixed-line IMS network. The message sent from the fixed-line IMS network to the smartphone is encrypted by the fixed-line session boundary controller before being sent to the smartphone via the Internet.

[0011] The present invention also provides a communication method, comprising:

[0012] Register a fixed-line number through the aforementioned fixed-line IMS network;

[0013] The smartphone transmits data with the mobile IMS network through the fixed-line session boundary controller, the fixed-line IMS network, and the gateway application server.

[0014] Wherein: the smartphone accesses the fixed-line IMS network through the fixed-line number, and the gateway application server converts the fixed-line number into the mobile number and accesses the mobile IMS network through the mobile number.

[0015] Optionally, in the aforementioned communication method, the method for registering a fixed-line number through the fixed-line IMS network includes:

[0016] The smartphone sends a registration request for a fixed number in the form of encrypted data;

[0017] The fixed-line session boundary controller receives the registration request, decrypts it, and then sends it to the fixed-line IMS network;

[0018] The fixed-line IMS network is used for fixed-line number registration;

[0019] The gateway application server stores the mapping relationship between the fixed number and the mobile number of the smartphone.

[0020] Optionally, in the aforementioned communication method, the method by which the smartphone transmits data with the mobile IMS network through the fixed-line session boundary controller, the fixed-line IMS network, and the gateway application server includes:

[0021] The smartphone's app sends a registration request for a fixed number in the form of encrypted data;

[0022] The fixed-line session boundary controller receives the signaling and media data from the APP application, decrypts them, and then sends them to the gateway application server through the fixed-line IMS network;

[0023] The gateway application server sends the signaling and media data to areas covered by the mobile IMS network, enabling communication between areas not covered by the mobile IMS network and areas covered by the mobile IMS network.

[0024] Optionally, in the communication method described above, the gateway application server accesses the mobile IMS network based on the mobile number corresponding to the fixed-line number.

[0025] In the communication network system and communication method provided by this invention, in areas with weak mobile IMS network coverage, smartphones access the fixed-line IMS network via the Internet through a fixed-line session boundary controller. When a smartphone wants to transmit information to the mobile IMS network, it is relayed through the fixed-line IMS network, which can solve the problem of weak mobile IMS network coverage and effectively improve the utilization rate of the fixed-line IMS network. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a communication network system according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the fixed-line registration process according to an embodiment of the present invention;

[0028] Figure 3 This is a flowchart illustrating the caller ID spoofing process according to an embodiment of the present invention;

[0029] Figure 4 This is a flowchart illustrating the called party addressing process according to an embodiment of the present invention;

[0030] In the diagram: 11-Mobile IMS network, 12-Mobile network service call session controller, 13-Mobile network home subscriber server, 14-Media gateway control function, 15-Service management system, 23-IP multimedia gateway, 24-Fixed network home subscriber server, 21-Fixed network IMS network, 22-Fixed network service call session controller, 25-Internet, 31-Gateway application server, 32-Fixed network session boundary controller, 33-Smartphone. Detailed Implementation

[0031] The specific embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0032] In the following text, the terms “first,” “second,” etc., are used to distinguish between similar elements and are not necessarily used to describe a specific order or chronological sequence. It should be understood that these terms, as used herein, may be replaced where appropriate. Similarly, if the methods described herein comprise a series of steps, and the order of these steps presented herein is not necessarily the only possible order in which they can be performed, and some described steps may be omitted and / or other steps not described herein may be added to the method.

[0033] Please refer to Figure 1 The present invention provides a communication network system, comprising:

[0034] The system includes a gateway application server 31, a smartphone 33, and a fixed-line session boundary controller 32. The gateway application server 31 is connected to both the fixed-line IMS network and the mobile IMS network 11. The smartphone 33 and the fixed-line session boundary controller 32 communicate via the Internet 25. The fixed-line session boundary controller 32 is connected to the fixed-line IMS network and then to the mobile IMS network 11 via the gateway application server 31.

[0035] The communication network system also includes: a mobile network service call session controller 12, a mobile network home subscriber server 13, and a media gateway controller connected to the mobile IMS network 11; an IP multimedia gateway 23, a fixed network home subscriber server 24, and a fixed network service call session controller 22 connected to the fixed network IMS network 21; and a service management system 15 connected to the gateway application server 31. The service management system 15 is also connected to the mobile network home subscriber server 13 and the fixed network home subscriber server 24, and the media gateway controller is connected to the IP multimedia gateway 23.

[0036] The smartphone 33 has several apps installed.

[0037] Furthermore, the gateway application server 31 includes a number association database to store the association relationship between mobile numbers and fixed-line numbers of user business account opening platforms.

[0038] Furthermore, the network between the fixed-line session boundary controller 32 and the fixed-line IMS network 21 is an internal network, and the network between the fixed-line session boundary controller 32 and the smartphone 33 is the Internet.

[0039] Furthermore, the fixed session border controller 32 (SBC) and the smartphone 33 communicate via the Internet through Wi-Fi.

[0040] Furthermore, the gateway application server 31 has caller ID spoofing and called number spoofing functions. When the APP initiates a call, the gateway application server 31 converts the fixed-line caller ID into a mobile number. When a call is received with a mobile number as the called party, the mobile IMS network first initiates the call with the mobile number as the called party. If the call is not successfully connected, the call is routed to the gateway application server. The gateway application server then modifies the called mobile number to a fixed-line number, routes it to the fixed-line IMS, and finally reaches the APP. The APP of the smartphone 33 may have both caller and called party functions. For example, it can actively initiate information transmission with the mobile IMS network 11, or it can passively transmit information with the mobile IMS network 11, i.e., the mobile IMS network 11 needs to transmit information to the APP. Therefore, the gateway application server 31 should have a caller ID spoofing function, so that when the APP application initiates an active call, it can connect to the mobile IMS network 11 via the fixed-line IMS network 21 (connecting the fixed-line IMS network 21 to the mobile IMS network 11 requires changing the fixed number to a mobile number for login). Simultaneously, it should also have a callee ID spoofing function, so that in areas not covered by the mobile IMS network 11, the APP application can be transferred to the fixed-line IMS network 21. This solves the problem of weak signal transmission between the APP application and the mobile IMS network 11 due to weak coverage of the mobile IMS network 11.

[0041] Furthermore, the smartphone 33 communicates with the fixed-line session boundary controller 32 and the fixed-line IMS network 21. The smartphone 33 encrypts the message and sends it to the fixed-line session boundary controller 32 via the Internet. The fixed-line session boundary controller 32 decrypts the message and sends it to the fixed-line IMS network 21. The message sent from the fixed-line IMS network 21 to the smartphone 33 is encrypted by the fixed-line session boundary controller 32 before being sent to the smartphone 33 via the Internet 25.

[0042] The present invention also provides a communication method, comprising:

[0043] Register a fixed-line number through the fixed-line IMS network 21;

[0044] Smartphone 33 transmits data with the mobile IMS network 11 through fixed-line session boundary controller 32, fixed-line IMS network 21 and gateway application server 31;

[0045] Specifically: smartphone 33 accesses fixed-line IMS network 21 via fixed-line number, and gateway application server 31 converts the fixed-line number into the mobile number and accesses mobile IMS network 11 via the mobile number.

[0046] Furthermore, methods for registering fixed-line numbers through the fixed-line IMS network 21 include:

[0047] Smartphone 33 sends a registration request for a fixed number in the form of encrypted data;

[0048] The fixed-line session boundary controller 32 receives the registration request, decrypts it, and then sends it to the fixed-line IMS network 21;

[0049] The fixed-line IMS network 21 is used for fixed-line number registration;

[0050] The gateway application server 31 stores the mapping relationship between the fixed number and the mobile number of the smartphone 33. For specific methods, please refer to... Figure 2 First, step S11 is executed: the service management system 15 sends an instruction to the fixed-line home subscriber server 24 (HSS) to activate the caller ID spoofing service for the fixed-line number of the smartphone user 33. Next, step S12 is executed: the caller ID service triggers the gateway application server 31 (AS). Simultaneously, the service management system 15 sends an instruction to the mobile network home subscriber server 13 (HSS) to activate the called party ringing service for the user's mobile number. The called party service triggers the gateway application server 31. Also, step S12 is executed: the service management system 15 loads the mapping relationship between the fixed-line number and the mobile number into the gateway application server 31 (AS) and the fixed-line session border controller 32 (SBC), and sends the registration password corresponding to the fixed-line number to the fixed-line session border controller 32. Next, step S13 is executed: the APP application on the smartphone 33 initiates registration with the fixed-line IMS network of the fixed-line home subscriber server 24. The registration message initiated by the APP application via the Internet is encrypted. When the registration message passes through the fixed network session boundary controller 32, the fixed network session boundary controller 32 decrypts the registration message, retrieves the registration password based on the corresponding fixed network number, constructs the corresponding account and password registration message, and registers it in plaintext within the fixed network IMS network through the fixed network service call session controller 22 (S-CSCF) to the fixed network home subscriber server 24 (HSS).

[0051] Furthermore, the method by which the smartphone 33 transmits data with the mobile IMS network 11 through the fixed-line session boundary controller 32, the fixed-line IMS network 21, and the gateway application server 31 includes:

[0052] The APP application of smartphone 33 sends the signaling and media data of the APP application in the form of encrypted data;

[0053] The fixed-line session boundary controller 32 receives the signaling and media data of the APP application and decrypts them, and then sends them to the gateway application server 31 through the fixed-line IMS network 21;

[0054] The gateway application server 31 sends the signaling and media data to areas covered by the mobile IMS network 11, enabling communication between areas not covered by the mobile IMS network 11 and areas covered by the mobile IMS network 11. Of course, before actual communication or number registration, various devices and terminals need to establish the communication network.

[0055] Furthermore, the gateway application server 31 accesses the mobile IMS network 11 based on the mobile number corresponding to the fixed-line number. Therefore, the gateway application server 31 (AS) in this embodiment of the invention has a caller ID spoofing function, which is implemented when the caller ID is switched from the fixed-line IMS network 21 to the mobile IMS network 11. For details, please refer to... Figure 3 The caller ID spoofing process in this embodiment of the invention includes: Step S21: An APP application on a smartphone 33 dials a called number. The call message initiated by the APP application via the Internet is encrypted and sent to the fixed-line session boundary controller 32 (SBC); Step S22: When the call message passes through the fixed-line session boundary controller 32 (SBC), the fixed-line session boundary controller 32 (SBC) decrypts the message and sends it to the fixed-line service call session controller 22 (S-CSCF); Step S23: The fixed-line service call session controller 22 (S-CSCF) triggers the call to the gateway application server 31 (AS) based on the caller ID spoofing service registered for the fixed-line user number; Step S24: The gateway application server 31 queries its internal database to find the correspondence between fixed-line numbers and mobile numbers, modifies the caller ID in the call message to the mobile number, and returns the call to the fixed-line service call session controller 22. (S-CSCF); Step S25: The fixed-line service call session controller 22 (S-CSCF) passes the call to the IP multimedia gateway 23 (IM-MGW) according to the routing principle; and Step S26: The IP multimedia gateway 23 (IM-MGW) passes the call across the network to the media gateway control function 14 (MGCF) of the mobile IMS network 11, and the subsequent connection process is completed by the mobile IMS network 11.

[0056] The gateway application server 31 (AS) of this embodiment of the invention also has a called party sequential ringing number change function. When the called party sequential ringing function is used, the called party addressing process of this embodiment of the invention is as follows: Figure 4 As shown, when the mobile number is the called party, and the call cannot be continued within the mobile IMS network 11, firstly, step S31 is executed: the Mobile Service Call Session Controller 22 (S-CSCF) initiates a query to the Home Subscriber Server 13 (HSS), and the HSS informs the Mobile Service Call Session Controller 22 (S-CSCF) of the number's ringing service and ringing platform address; then, step S32 is executed: the Mobile Service Call Session Controller 22, based on the obtained platform address, initiates a call message to the Gateway Application Server 31 (AS), in which the called address is still the mobile number. After receiving the call message, the Gateway Application Server 31 (AS) queries its internal database to find the correspondence between the called mobile number and the fixed number, modifies the called number in the call message to the fixed number, and returns the call message to S-CSCF. -CSCF; Next, step S33 is executed: the Mobile Service Call Session Controller 22 (S-CSCF) transmits the call to the Media Gateway Control Function 14 (MGCF) according to the routing principle; Next, step S34 is executed: the Media Gateway Control Function 14 transmits the call to the IP Multimedia Gateway 23 (IM-MGW) of the Fixed IMS Network 21 according to the routing principle; Next, step S35 is executed: the IP Multimedia Gateway 23 (IM-MGW) finds the corresponding terminal location according to the called fixed IMS number, and transmits the call to the terminal through the Fixed Session Border Controller 32 (SBC) within the Fixed IMS Network 21; Finally, step S36 is executed: the Fixed Session Border Controller 32 (SBC) encrypts the signaling and media messages received from the Fixed IMS Network 21 and sends them to the corresponding smartphone terminal APP application via the Internet. The APP application decrypts the messages and completes the call process.

[0057] In summary, in the communication network and communication method provided in the embodiments of the present invention, in areas with weak mobile IMS network coverage, smartphones access the fixed-line IMS network via the Internet through the fixed-line session boundary controller. When the smartphone wants to transmit information to the mobile IMS network, it is relayed through the fixed-line IMS network, which can solve the problem of weak mobile IMS network coverage and effectively improve the utilization rate of the fixed-line IMS network.

[0058] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the present invention. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and content disclosed in the present invention without departing from the scope of the present invention shall be deemed to have remained within the protection scope of the present invention.

Claims

1. A communication network system, characterized by comprising: It comprises: a gateway application server, a smart phone and a fixed network session border controller, the gateway application server accesses the fixed network IMS network and the mobile IMS network at the same time, the smart phone and the fixed network session border controller communicate through the Internet, and the fixed network session border controller accesses the fixed network IMS network and then accesses the mobile IMS network through the gateway application server; the fixed network session border controller SBC and the smart phone communicate through the Internet via WIFI; the gateway application server comprises a number association database for saving the association relationship between the mobile number and the fixed network number of the user service opening platform; the gateway application server has the calling number changing function and the called number changing function; when the smart phone initiates a calling, the gateway application server changes the fixed network calling number into the mobile number; when receiving the calling with the mobile number as the called number, the mobile IMS network initiates the calling with the mobile number as the called number first, if the calling is not connected successfully, the calling is changed to the gateway application server, the gateway application server changes the called mobile number into the fixed network number and then routes to the fixed network IMS network, and finally reaches the APP application.

2. The communication network system of claim 1, wherein, The smart phone is installed with several APP applications.

3. The communication network system of claim 1, wherein, The smart phone realizes the communication function through the fixed network session border controller and the fixed network IMS network, the smart phone sends the message to the fixed network session border controller through the Internet after encryption, the fixed network session border controller decrypts the message and then sends the message to the fixed network IMS network, and the message sent by the fixed network IMS network to the smart phone is encrypted by the fixed network session border controller and then sent to the smart phone through the Internet.

4. A communication method using the communication system according to any one of claims 1 to 3, characterized by, It comprises: registering the fixed network number through the fixed network IMS network; the smart phone transmits data with the mobile IMS network through the fixed network session border controller, the fixed network IMS network and the gateway application server; wherein: the smart phone accesses the fixed network IMS network through the fixed network number, and the gateway application server changes the fixed network number into the mobile number and then accesses the mobile IMS network through the mobile number.

5. The communication method of claim 4, wherein, The method for registering the fixed network number through the fixed network IMS network comprises: the APP application of the smart phone sends the registration request of the fixed number in the form of encrypted data; the fixed network session border controller receives the signaling and media data of the APP application, decrypts the signaling and media data, and then sends the signaling and media data to the gateway application server through the fixed network IMS network; the gateway application server sends the signaling and media data to the place covered by the mobile IMS network, so as to realize the communication between the place not covered by the mobile IMS network and the place covered by the mobile IMS network.

6. The communication method of claim 4, wherein, The method for the smart phone to transmit data with the mobile IMS network through the fixed network session border controller, the fixed network IMS network and the gateway application server comprises: The smart phone sends signaling and media data of the APP application in the form of encrypted data; The fixed network session border controller receives the signaling and media data of the APP application and decrypts them, and then sends them to the fixed network IMS network; The fixed network IMS network sends the signaling and data to the gateway application server; The gateway application server sends the signaling and media data to the mobile IMS network.

7. The communication method of claim 6, wherein, The gateway application server accesses the mobile IMS network according to the mobile number corresponding to the fixed network number.

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