5g private network and fixed network integrated communication system

Abstract

The utility model discloses a 5G special network and fixed network fusion's communication system, and communication system includes 5G special network, relay gateway and fixed network, and 5G special network is connected with fixed network through relay gateway and communicates, and 5G special network includes data special network and IMS voice special network, and fixed network includes fixed network voice system and user access board card, and the IP interface and TDM interface are provided on relay gateway, and data special network, IMS voice special network, IP interface, TDM interface, fixed network voice system and user access board card are connected in proper order, in the utility model embodiment, 5G special network is connected with fixed network through relay gateway, simultaneously, and relay gateway is as IP the TDM conversion equipment and is connected with 5G special network through IP interface on one side, and is connected with fixed network through TDM interface on the other side, realizes IP and TDM mutual conversion work, also realizes the mutual conversion of signaling and media.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a communication system that integrates 5G private network and fixed network. Background Technology

[0002] 5G private networks are dedicated networks created using 5G technology, offering unified connectivity, optimized services, and secure communication within specific areas. Fixed-line networks, on the other hand, transmit signals via solid media such as metal wires or fiber optic cables. Compared to mobile networks, fixed-line networks provide higher quality voice signals, can be used in locations without mobile signals, and are less susceptible to external interference. Currently, 5G private networks cannot interface with fixed-line networks; therefore, they cannot communicate with each other. Utility Model Content

[0003] The purpose of this invention is to provide a communication system that integrates 5G private networks and fixed networks, aiming to solve the problem that existing 5G private networks cannot communicate with fixed networks.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a communication system integrating 5G private network and fixed network is provided, the communication system including 5G private network, relay gateway and fixed network, the 5G private network communicating with the fixed network through the relay gateway;

[0005] The 5G private network includes a data private network and an IMS voice private network. The fixed network includes a fixed network voice system and a user access card. The relay gateway is equipped with an IP interface and a TDM interface. The data private network, the IMS voice private network, the IP interface, the TDM interface, the fixed network voice system, and the user access card are connected in sequence.

[0006] Furthermore, the IMS voice private network is connected to the IP interface of the relay gateway via a network switch.

[0007] Furthermore, the fixed-line voice system is connected to the TDM interface of the trunk gateway through the media gateway.

[0008] Furthermore, the IMS voice private network includes A-SBC network elements, CSCF network elements, VoLTE AS network elements, and IBCF network elements.

[0009] Furthermore, the A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the IBCF network element are connected in sequence.

[0010] Furthermore, the A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the A-SBC network element are connected in sequence.

[0011] Furthermore, the IMS voice private network uses the SIP protocol to interface with the trunk gateway, and the fixed-line voice system uses the PRI protocol to interface with the trunk gateway.

[0012] Furthermore, the relay gateway is equipped with multiple TDM interfaces, each of which contains multiple 64kbps time slots.

[0013] Furthermore, the private data network communicates with mobile terminals via 5G base stations.

[0014] Furthermore, the dedicated data network includes UDM network elements, PCF network elements, AMF network elements, and SMF network elements.

[0015] This utility model discloses a communication system integrating a 5G private network and a fixed network. The communication system includes a 5G private network, a relay gateway, and a fixed network. The 5G private network communicates with the fixed network through the relay gateway. The 5G private network includes a data private network and an IMS voice private network. The fixed network includes a fixed network voice system and a user access card. The relay gateway is equipped with an IP interface and a TDM interface. The data private network, the IMS voice private network, the IP interface, the TDM interface, the fixed network voice system, and the user access card are connected sequentially. In this embodiment, the 5G private network interfaces with the fixed network through the relay gateway. Simultaneously, the relay gateway, as an IP-TDM conversion device, interfaces with the 5G private network through the IP interface and with the fixed network through the TDM interface, realizing IP-TDM mutual conversion and signaling and media mutual conversion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the communication system provided in an embodiment of this utility model;

[0018] Figure 2 A partial schematic diagram of the communication system provided in an embodiment of this utility model;

[0019] Figure 3 A first call flowchart of a communication system provided in an embodiment of this utility model;

[0020] Figure 4 A second call flowchart of a communication system provided in an embodiment of this utility model;

[0021] Figure 5 A third call flowchart of the communication system provided in this embodiment of the utility model;

[0022] Figure 6 The fourth call flowchart of the communication system provided in the embodiments of this utility model;

[0023] Figure 7 The fifth call flowchart of the communication system provided in the embodiment of this utility model.

[0024] The labels for the attached figures are as follows:

[0025] 10. Communication system; 100. 5G private network; 110. Data private network; 120. IMS voice private network; 200. Relay gateway; 300. Fixed network; 310. Fixed network voice system; 320. User access board; 410. Network switch; 420. Media gateway; 430. 5G base station. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] Please see Figure 1 , Figure 1 A schematic diagram of a communication system provided in an embodiment of this utility model. (See diagram below.) Figure 1 As shown, this utility model proposes a communication system 10 integrating a 5G private network and a fixed network. The communication system 10 includes a 5G private network 100, a relay gateway 200, and a fixed network 300. The 5G private network 100 communicates with the fixed network 300 through the relay gateway 200. The 5G private network 100 includes a data private network 110 and an IMS voice private network 120. The fixed network 300 includes a fixed network voice system 310 and a user access card 320. The relay gateway 200 is equipped with an IP interface and a TDM interface. The data private network 110, the IMS voice private network 120, the IP interface, the TDM interface, the fixed network voice system 310, and the user access card 320 are connected sequentially.

[0031] In this embodiment, when a virtualized core network (such as an IMS core network) is deployed in a TOB scenario, it often needs to connect with peripheral network elements via TDM (Time Division Multiplexing). However, the virtualized core network itself does not support TDM connection, so an IP-TDM conversion device needs to be introduced to solve the problem that the IP of the virtualized core network cannot be converted and connected with external TDM. In this embodiment, the relay gateway 200, as an IP-TDM conversion device, connects with the 5G private network 100 through the IP interface and with the fixed network through the TDM interface, realizing the mutual conversion between IP and TDM. In addition, the relay gateway 200 also has encoding and decoding functions, which can realize the mutual conversion between signaling and media.

[0032] In one embodiment, such as Figure 2 As shown, the IMS voice private network 120 is connected to the IP interface of the relay gateway 200 through the network switch 410.

[0033] In this embodiment, the mobile terminal interfaces with the IMS voice private network 120 through the data private network 110, and the IMS voice private network 120 is connected to the IP interface of the relay gateway 200 through the network switch 410.

[0034] Furthermore, the mobile terminal establishes a communication connection with the dedicated data network 110 via the 5G base station 430.

[0035] In one embodiment, such as Figure 2 As shown, the fixed-line voice system 310 is connected to the TDM interface of the relay gateway 200 through the media gateway 420.

[0036] In this embodiment, the fixed-line terminal interfaces with the fixed-line voice system 310 through a user access card, and the fixed-line voice system 310 is connected to the TDM interface of the relay gateway 200 through a media gateway 420.

[0037] In one embodiment, such as Figure 3 As shown, the IMS voice private network 120 includes A-SBC network elements, CSCF network elements, VoLTEAS network elements, and IBCF network elements.

[0038] In this embodiment, the IMS voice private network 120 includes an A-SBC (Access Session Border Controller) network element, a CSCF (Call Session Control Function) network element, a VoLTE AS network element, and an IBCF (Interconnection Border Control Function) network element. The A-SBC network element is used to ensure the quality, stability, and security of real-time voice / video communication, while the CSCF network element is responsible for controlling functions closely related to user services, such as registration and authentication, session control, routing management, network management, and billing.

[0039] In one embodiment, such as Figure 3 As shown, the A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the IBCF network element are connected in sequence.

[0040] In this embodiment, the A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the IBCF network element are connected sequentially. For ease of explanation, a call flow is used as an example:

[0041] Call Process 1: The mobile terminal calls the fixed-line terminal. The call process is as follows (see details). Figure 3 ):

[0042] (1) The mobile terminal initiates a call request and calls the A-SBC network element through the data private network 110;

[0043] (2) The A-SBC network element detects the legitimacy of the user. If the user is legitimate, the call request is routed to the CSCF network element.

[0044] (3) The CSCF network element triggers the VoLTE AS network element, which executes the basic supplementary services of the calling user. After the execution is completed, the execution result is returned.

[0045] (4) When the execution result allows the next step, the CSCF network element sends the call request to the fixed-line voice system 310 according to the called number;

[0046] (5) The fixed-line voice system 310 executes the called party service and routes the call request to the corresponding fixed-line terminal through the user access board 320.

[0047] Furthermore, the following prerequisites must be met before executing call procedure 1:

[0048] (1) The 5G private network 100 contains the SIM card information of the mobile terminal;

[0049] (2) Mobile terminals support AMRWB / AMR encoding, fixed-line terminals support G.711, G.729 and other encodings, and fixed-line voice system 310 supports encoding and decoding conversion;

[0050] (3) Separate the private network and landline number segments.

[0051] Call Process 2: Fixed-line terminal calls mobile terminal. The call process is as follows (see details). Figure 1 and Figure 4 ):

[0052] (1) The fixed-line terminal initiates a call setup message;

[0053] (2) The call setup message is sent to the user access card 320 for preprocessing;

[0054] (3) After preprocessing, the call is sent to the fixed-line voice system 310 for call flow processing;

[0055] (4) The fixed-line voice system 310 assigns a corresponding route to the 5G private network 100 according to the prefix of the called number;

[0056] (5) The 5G private network 100 performs the called service and routes the call to the corresponding mobile terminal.

[0057] Furthermore, the following prerequisites must be met before executing call procedure 1:

[0058] (1) The fixed-line terminal has completed the registration process;

[0059] (2) Mobile terminals support AMRWB / AMR encoding, fixed-line terminals support G.711, G.729 and other encodings, and fixed-line voice system 310 supports encoding and decoding conversion;

[0060] (3) Separate the private network and landline number segments.

[0061] In one embodiment, such as Figure 5As shown, the A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the A-SBC network element are connected in sequence.

[0062] In this embodiment, the A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the A-SBC network element are connected sequentially. For ease of explanation, a call process is used as an example:

[0063] Call process 3: Mobile terminal calls mobile terminal. The call process is as follows (see details). Figure 5 ):

[0064] (1) The mobile terminal initiates a call request and calls the A-SBC network element through the data private network 110;

[0065] (2) The A-SBC network element routes the call to the CSCF network element;

[0066] (3) The CSCF network element triggers the VoLTE AS network element, which executes basic supplementary services and returns the corresponding execution results.

[0067] (4) When the execution result allows the next step, the CSCF network element will transfer the call to the A-SBC network element;

[0068] (5) The A-SBC network element will call the mobile terminal corresponding to the route.

[0069] Furthermore, the following prerequisites must be met before executing call procedure 3:

[0070] (1) The 5G private network 100 contains the SIM card information of the mobile terminal and the called mobile terminal;

[0071] (2) Separate the private network and landline number segments.

[0072] In one embodiment, such as Figure 6 As shown, the IMS voice private network 120 uses the SIP protocol to interface with the trunk gateway 200, and the fixed-line voice system 310 uses the PRI protocol to interface with the trunk gateway 200.

[0073] In this embodiment, the IMS voice private network 120 uses the SIP protocol to interface with the trunk gateway 200, and the fixed-line voice system 310 uses the PRI protocol to interface with the trunk gateway 200. For ease of explanation, a call flow is used as an example:

[0074] Call Process 4: The mobile terminal calls an external operator's terminal. The call process is as follows (see details). Figure 6 ):

[0075] (1) The mobile terminal initiates a call request (external mobile phone or landline number) and calls the A-SBC network element through the data private network 110;

[0076] (2) The A-SBC network element detects the legitimacy of the user and routes the call to the CSCF network element;

[0077] (3) The CSCF network element triggers the VoLTEAS network element based on the subscription data. The VoLTEAS network element executes the caller supplementary service and returns the execution result.

[0078] (4) When the execution result is that the next step is allowed, the CSCF network element routes the call to the IBCF network element according to the called number;

[0079] (5) The IBCF network element sends the call request to the fixed-line voice system 310 based on the SIP / IP protocol. The fixed-line voice system 310 reuses the existing outgoing link and displays the local DID number to route the call to the corresponding external operator terminal.

[0080] Furthermore, the following prerequisites must be met before executing call procedure 4:

[0081] (1) The 5G private network 100 contains the SIM card information of the mobile terminal;

[0082] (2) External operator mobile or landline phones are registered normally;

[0083] (3) The public and private network links have been established and connected to the IBCF network element through the fixed network voice system 310.

[0084] Call Process 5: An external operator terminal calls a mobile terminal. The call process is as follows (see details). Figure 7 ):

[0085] (1) When an external operator terminal initiates a call request on the public network, the public network routes the call to the fixed-line voice system 310 based on the directly dialed DID number.

[0086] (2) The IBCF network element receives a call from the fixed-line voice system 310 and routes the call to the CSCF network element;

[0087] (3) The CSCF network element triggers the VoLTE AS network element based on the subscription data, so that the VoLTE AS network element can execute the called supplementary service and return the corresponding execution result;

[0088] (4) When the execution result indicates that the next step is allowed, the CSCF network element will route the call to the ASBC network element according to the user registration information.

[0089] (5) The ASBC network element sends the call to the corresponding mobile terminal to complete the connection.

[0090] Furthermore, the following prerequisites must be met before executing call procedure 5:

[0091] (1) The 5G private network 100 contains the SIM card information of the mobile terminal;

[0092] (2) The 5G private network allocates DID numbers, which are separate from the external fixed-line number segments;

[0093] (3) The public and private network links have been established and connected to the IBCF network element through the fixed network voice system 310.

[0094] In one embodiment, such as Figure 2 As shown, the relay gateway 200 is equipped with multiple TDM interfaces, each of which contains multiple 64kbps time slots.

[0095] In this embodiment, the relay gateway 200 is equipped with multiple TDM interfaces, each of which contains multiple 64kbps time slots, supporting 300 concurrent telephone calls, meeting the total capacity of the channel, and reserving some expansion channels for future use.

[0096] In one embodiment, such as Figure 3 As shown, the private data network 110 includes UDM network elements, PCF network elements, AMF network elements and SMF network elements.

[0097] In this embodiment, the private data network 110 includes a UDM (Unified Data Management) network element, a PCF (Policy Control Function) network element, an AMF (Access and Mobility Management Function) network element, and an SMF (Session Management Function) network element; wherein, the UDM network element is used to manage and store user data, the PCF network element is responsible for the unified management and control of the policy framework, the AMF network element is responsible for user mobility and access management, and the SMF network element is responsible for user session management.

[0098] Furthermore, the communication system 10 also has security and reliability design; wherein, the security design includes: (1) supporting encrypted communication, which can encrypt the transmitted voice and signaling to prevent data from being stolen or tampered with during transmission; (2) having access control function, which can only be accessed by authorized users and devices, effectively preventing unauthorized access; (3) being able to resist common network attacks and ensure the stable operation of the network; (4) having user authentication and permission management function, which allows users of different levels to have different operating permissions to prevent misoperation and malicious operation; (5) supporting log recording and auditing function, which can record the operating status of the device and user operations, making it convenient to trace and analyze security events afterward; (6) having verification / error correction function, which can verify and correct the transmitted data to ensure the integrity and accuracy of the data; (7) in terms of data storage, a secure storage method, such as backup storage, can be adopted to prevent data loss and leakage.

[0099] The reliability design includes: (1) Redundancy design for key components, such as when a board, power module or system fails, the backup component can immediately take over the work to ensure the normal operation of the system; (2) Fault tolerance design: the software has fault tolerance capability and can detect and handle various error situations; such as when the network connection is interrupted, the gateway can automatically reconnect; when data transmission errors occur, error correction or retransmission can be performed; (3) Fault recovery mechanism: it has a complete fault recovery mechanism, and when the system fails, it can quickly return to normal; such as automatic restart; (4) the relay gateway 200 is configured with multi-port network connection and can adopt redundant network configuration. When one network line fails, it automatically switches to another line to ensure the continuity of data transmission; (5) the load balancing design of the relay port distributes data traffic to multiple relay ports to improve the utilization and reliability of the relay.

[0100] This utility model discloses a communication system integrating a 5G private network and a fixed network. The communication system includes a 5G private network, a relay gateway, and a fixed network. The 5G private network communicates with the fixed network through the relay gateway. The 5G private network includes a data private network and an IMS voice private network. The fixed network includes a fixed network voice system and a user access card. The relay gateway is equipped with an IP interface and a TDM interface. The data private network, the IMS voice private network, the IP interface, the TDM interface, the fixed network voice system, and the user access card are connected sequentially. In this embodiment, the 5G private network interfaces with the fixed network through the relay gateway. Simultaneously, the relay gateway, as an IP-TDM conversion device, interfaces with the 5G private network through the IP interface and with the fixed network through the TDM interface, realizing IP-TDM mutual conversion and signaling and media mutual conversion.

[0101] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A communication system integrating 5G private network and fixed network, characterized in that, The communication system includes a 5G private network, a relay gateway, and a fixed network. The 5G private network communicates with the fixed network through the relay gateway. The 5G private network includes a data private network and an IMS voice private network. The fixed network includes a fixed network voice system and a user access card. The relay gateway is equipped with an IP interface and a TDM interface. The data private network, the IMS voice private network, the IP interface, the TDM interface, the fixed network voice system, and the user access card are connected in sequence.

2. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The IMS voice private network is connected to the IP interface of the relay gateway through a network switch.

3. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The fixed-line voice system is connected to the TDM interface of the relay gateway through the media gateway.

4. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The IMS voice private network includes A-SBC network elements, CSCF network elements, VoLTE AS network elements, and IBCF network elements.

5. The communication system integrating 5G private network and fixed network according to claim 4, characterized in that, The A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the IBCF network element are connected in sequence.

6. The communication system integrating 5G private network and fixed network according to claim 4, characterized in that, The A-SBC network element, the CSCF network element, the VoLTE AS network element, the CSCF network element, and the A-SBC network element are connected in sequence.

7. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The IMS voice private network uses the SIP protocol to interface with the trunk gateway, and the fixed-line voice system uses the PRI protocol to interface with the trunk gateway.

8. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The relay gateway is equipped with multiple TDM interfaces, each of which contains multiple 64kbps time slots.

9. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The dedicated data network communicates with mobile terminals via 5G base stations.

10. The communication system integrating 5G private network and fixed network according to claim 1, characterized in that, The dedicated data network includes UDM network elements, PCF network elements, AMF network elements, and SMF network elements.

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