CN117896707A

CN117896707A - Calling method, system, equipment and storage medium based on integration of satellite and Internet of vehicles

Info

Publication number: CN117896707A
Application number: CN202311788454.5A
Authority: CN
Inventors: 张洋; 史啸; 史睿; 杨康; 赵晨羽; 陈冯; 王亚磊
Original assignee: Tianyi IoT Technology Co Ltd
Current assignee: Tianyi IoT Technology Co Ltd
Priority date: 2023-12-22
Filing date: 2023-12-22
Publication date: 2024-04-16

Abstract

The embodiment of the application provides a calling method, a calling system, calling equipment and a storage medium based on satellite-vehicle networking integration, and belongs to the technical field of communication. According to the method and the device, the home location register is built in the Internet of vehicles, the home location register can open the 2G subscription data of the satellite mobile communication network user, and the 2G voice function is supported, so that the Internet of vehicles has the HLR addressing capability of the GSM network. When I P multimedia subsystem network initiates a call request for satellite mobile communication network user, the Internet of vehicles uses HLR addressing capability to obtain mobile station roaming number of called number in satellite mobile communication network, then routes the call request to satellite mobile communication GSM network based on mobile station roaming number, realizing voice call of VoLTE user of IMS network to satellite mobile communication GSM network user.

Description

Calling method, system, equipment and storage medium based on integration of satellite and Internet of vehicles

Technical Field

The present application relates to the field of communications technologies, and in particular, to a calling method, system, device, and storage medium based on integration of satellite and internet of vehicles.

Background

With the continuous perfection of 5G network coverage and the rapid development of vehicle networks, more and more vehicle-mounted terminals use 5G networks, a 5G ground mobile communication system provides convenient service for vehicle enterprise users, however, in mountain regions, desert regions and the like, satellite mobile communication becomes the supplement and extension of the ground due to the difficulty of base station erection, compared with the ground mobile communication network, the satellite mobile communication network can realize wide area and even global coverage by using high, medium and low orbit satellites, can provide indiscriminate communication service for vehicle enterprise users, and the requirement of vehicle networking integrated satellite communication is met.

At present, the core network of the satellite mobile communication network is a 2G GSM network, and provides 2G voice and short message communication functions for the satellite terminal. The core network of the satellite mobile communication network used by satellite telephone service is communicated with the ground mobile communication system through the gateway office, so that the voice intercommunication between the personal network telephone and the satellite telephone under the GSM network and the CDMA network can be realized, but the voice intercommunication between the GSM network and the VoLTE network can not be realized at present. The VoLTE network is a high-definition voice service sub-network of the IMS network, a VoLTE network user dials a CDMA network user and can be selected to the MGCF, the MGCF supports conversion from an SIP protocol to a C-MAP protocol, and the VoLTE network user dials the CDMA network user, but the MGCF does not support conversion from the SIP protocol to the G-MAP protocol, so that the VoLTE network user pages a vehicle-mounted terminal of the satellite mobile communication GSM network, namely the vehicle-mounted terminal under the satellite mobile communication network cannot be used as a called party, and voice interaction under a satellite vehicle networking fusion scene is affected.

Disclosure of Invention

The embodiment of the application mainly aims to provide a calling method, a calling system, calling equipment and a storage medium based on satellite-vehicle networking integration, aiming at enabling VoLTE network users to page vehicle-mounted terminals of a satellite mobile communication GSM network.

In order to achieve the above objective, an aspect of the embodiments of the present application provides a calling method based on a satellite-internet of vehicles convergence, where the calling method based on the satellite-internet of vehicles convergence is applied to an internet of vehicles, the internet of vehicles includes a home location register, the home location register stores user location information under a satellite mobile communication network, and the calling method based on the satellite-internet of vehicles convergence includes the following steps:

receiving a call request from a media gateway control function network element of an IP multimedia subsystem network, wherein the call request comprises a called number;

judging whether the called number belongs to the local network according to the home location register, and sending a roaming number providing signaling message to a satellite mobile communication network when the called number does not belong to the local network, wherein the roaming number providing signaling message comprises the called number;

receiving a roaming number providing response message from a satellite mobile communication network, wherein the roaming number providing response message comprises a mobile station roaming number of the called number in the satellite mobile communication network;

And routing the call request to a satellite mobile communication network according to the mobile station roaming number.

In some embodiments, the internet of vehicles further comprises a gateway mobile switching center and a unified data management network element, the gateway mobile switching center being operative to perform the steps of:

receiving a call request from a media gateway control function network element of an IP multimedia subsystem network;

generating a home address request containing a called number according to the call request, and forwarding the home address request to the unified data management network element to acquire a mobile station roaming number of the called number in the satellite mobile communication network;

In some embodiments, the unified data management network element is configured to perform the steps of:

receiving a home address request from a gateway mobile switching center;

judging whether the called number belongs to the local network according to the home location register, and sending a roaming number signaling message to a satellite mobile communication network when the called number does not belong to the local network;

receiving a provide roaming number response message from the satellite mobile communication network;

And sending the mobile station roaming number in the roaming number response providing message to the gateway mobile switching center.

In some embodiments, the determining, according to the home location register, whether the called number belongs to the home network includes the following steps:

inquiring user position information of the called number stored in the home location register according to the called number;

and when the user position information does not belong to the communication area of the Internet of vehicles, determining that the called number does not belong to the local network.

In some embodiments, the internet of vehicles and the satellite mobile communication network are connected through an international signaling gateway node, and the user terminal registration procedure in the home location register is as follows:

receiving an authentication request message from a satellite mobile communication network to a user terminal through the international signaling gateway node;

registering the user terminal in the home location register according to the authentication request message, and returning an authentication response message to the satellite mobile communication network so that the satellite mobile communication network completes authentication registration of the user terminal according to the authentication response message.

In some embodiments, the location update procedure of the user terminal in the home location register is as follows:

Receiving a location update request from a satellite mobile communication network to a user terminal through the international signaling gateway node, wherein the location update request comprises an international mobile subscriber identity, a circuit domain subscriber temporary identifier, a location area identity and a location update type;

and carrying out position updating processing on the corresponding user terminal in the home location register according to the position updating request.

In some embodiments, the performing location update processing on the corresponding user terminal in the home location register according to the location update request includes the following steps:

updating the position information of the user terminal in the home location register according to the position updating request, storing a new position area identification code, and distributing a new circuit domain user temporary identifier for the user terminal;

and sending a location area update confirmation message to the satellite mobile communication network so that the satellite mobile communication network sends a location update accept message to the user terminal, wherein the location update accept message comprises a new circuit domain user temporary identifier.

To achieve the above objective, another aspect of the embodiments of the present application provides a call system based on a satellite-internet of vehicles convergence, where the call system based on the satellite-internet of vehicles convergence is applied to the internet of vehicles, the internet of vehicles includes a home location register, the home location register stores user location information under a satellite mobile communication network, and the call system based on the satellite-internet of vehicles convergence includes:

A first module, configured to receive a call request from a media gateway control function network element of an IP multimedia subsystem network, where the call request includes a called number;

a second module, configured to determine, according to the home location register, whether the called number belongs to a home network, and when the called number does not belong to the home network, send a roaming number providing signaling message to a satellite mobile communications network, where the roaming number providing signaling message includes the called number;

a third module, configured to receive a provide roaming number response message from a satellite mobile communication network, where the provide roaming number response message includes a mobile station roaming number of the called number in the satellite mobile communication network;

and a fourth module for routing the call request to a satellite mobile communication network according to the mobile station roaming number.

To achieve the above object, another aspect of the embodiments of the present application proposes an electronic device, where the electronic device includes a memory, a processor, a program stored on the memory and executable on the processor, and a data bus for implementing connection communication between the processor and the memory, where the program when executed by the processor implements the call method based on satellite internet of vehicles fusion described in the above embodiment.

To achieve the above object, another aspect of the embodiments of the present application provides a storage medium, where the storage medium is a computer readable storage medium, and the storage medium stores one or more programs, and the one or more programs may be executed by one or more processors, so as to implement the calling method based on satellite internet of vehicles fusion according to the above embodiments.

According to the calling method, system, equipment and storage medium based on the integration of the satellite and the internet of vehicles, the home location register is built in the internet of vehicles, and can open the 2G subscription data of the satellite mobile communication network user and support the 2G voice function, so that the internet of vehicles has the HLR addressing capability of the GSM network. When the IP multimedia subsystem network initiates a call request for a satellite mobile communication network user, the Internet of vehicles acquires a mobile station roaming number of a called number in the satellite mobile communication network by utilizing the HLR addressing capability of the Internet of vehicles, and then routes the call request to the satellite mobile communication GSM network based on the mobile station roaming number, so that the VoLTE user of the IMS network can call to the satellite mobile communication GSM network user through voice.

Drawings

Fig. 1 is a flowchart of a calling method based on satellite internet of vehicles fusion provided in an embodiment of the present application;

fig. 2 is a flowchart of steps performed by a gateway mobile switching center according to an embodiment of the present application;

fig. 3 is a flowchart of a step performed by a unified data management network element according to an embodiment of the present application;

fig. 4 is a flowchart of step S302 in fig. 3;

fig. 5 is a flowchart of a method for registering a user terminal in a home location register according to an embodiment of the present application;

fig. 6 is a flowchart of a method for updating a location of a user terminal in a home location register according to an embodiment of the present application;

fig. 7 is a flowchart of step S602 in fig. 6;

fig. 8 is a schematic diagram of a calling system based on integration of satellite internet of vehicles according to an embodiment of the present application;

fig. 9 is a schematic hardware structure of an electronic device according to an embodiment of the present application;

fig. 10 is a schematic diagram of a satellite internet of vehicles converged network provided in an embodiment of the present application;

FIG. 11 is a schematic diagram of the overall flow of voice dialing of a satellite user by a Volter user according to an embodiment of the present application;

fig. 12 is a schematic diagram of an addressing and transferring flow of the internet of vehicles according to an embodiment of the present application;

fig. 13 is a schematic diagram of a fusion registration process of a vehicle-mounted satellite terminal in a satellite mobile communication network and a vehicle networking according to an embodiment of the present application;

Fig. 14 is a schematic diagram of a location update process of a vehicle-mounted satellite terminal in a satellite mobile communication network and a vehicle networking according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It should be noted that although functional block diagrams are depicted as block diagrams, and logical sequences are shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the block diagrams in the system. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

First, several nouns referred to in this application are parsed:

the IP multimedia subsystem (IP Multimedia Subsystem, IMS), a global network system built on the basis of Internet Protocol (IP), is an open, standardized platform aimed at providing various high quality multimedia services to the internet for service providers and clients, such as: voice, video, data, and other sharing applications. IMS integrates different access networks (like LTE, 5G, wi-Fi or PSTN) and provides a framework for a set of generic services (e.g. VoLTE, VONR, video telephony or instant messaging). IMS uses SIP as the main signaling protocol, but also relies on other components such as a Home Subscriber Server (HSS), a Call Session Control Function (CSCF), and a Media Resource Function (MRF). IMS defines different profiles and interfaces for different types of services and devices, such as voice over IP (VoIP), video over IP (VoIP), or Rich Communication Services (RCS).

VoLTE, a generic service under the IMS network, is a service that allows users to place and receive voice calls over the LTE/5G network, using IMS as the core network, and SIP as the signaling protocol. VoLTE uses dedicated bearers to transport voice traffic to ensure low latency and high quality services.

The global system for mobile communications (Global System for Mobile Communications, GSM) uses time division multiple access (tdma) technology for the air interface of the GSM network, and the signaling and voice channels are digital and thus considered as second generation (2G) mobile telephone systems, providing the ability for people to conduct voice calls, short messages, internet access, and multimedia communications at any time and at any location. Satellite mobile communication networks utilize a GSM network on the ground with satellites as communication networks for repeaters.

Unified data management (Unified Data Manager, UDM) network element: by providing a management architecture that can uniformly manage the network, security, storage, etc. infrastructure, the UDM creates a uniform management hub for IT systems, helping users to achieve more efficient management, utilization, and protection of data assets.

The home location register (Home Location Register, HLR), which is a database storing information about the subscribers of a certain operator, such as supplementary services, authentication parameters, APN (Access Point Name ), MSC/VLR number the subscriber is currently visiting, SGSN number the subscriber is currently visiting, etc. The HLR is a central database of the GSM system, storing information of all home subscribers, such as subscriber related numbers (IMSI and MSISDN), subscriber category, roaming capability, subscription service, supplementary service, etc. In addition, the HLR stores dynamic data information about each home subscriber, such as the MSC/VLR address (i.e., location information) where the subscriber is currently roaming and supplementary services allocated to the subscriber.

GMSC (Gateway Mobile Switching Center ): a mobile switching center requests routing information for calling mobile subscribers and also provides inter-network interconnection and settlement functions.

MGCF (Media Gateway Control Function ): a gateway enabling communication between IMS users and CS users. All call control signaling from the CS/IMS user is directed to the MGCF, responsible for the protocol conversion between ISUP or BICC and SIP protocol, and forwarding the session to the IMS. The MGCF also controls the media channels in the IM-MGW.

SA (Standalone) independent networking: the method is to connect a 5G base station with a 5G core network, has complete use and control capability of the 5G base station, and can combine technical capabilities of MEC, slicing and the like, so that a user really enjoys the bandwidth brought by 5G and the overall service experience is improved.

International mobile subscriber identity (International Mobile Subscriber ldentification Number, IMSI), an internationally assigned number uniquely identifying a mobile subscriber, stored in a SIM card, HLRMLR, is a unique (up to 15 digits) code for identifying an individual subscriber to a GSM network, which code is valid in all locations in the network, including roaming areas. The operator assigns to the handset.

A temporary mobile subscriber identity (Temporary Mobile Subscriber Identifier, TMSI), also called temporary mobile subscriber identity, is assigned in the VLR to uniquely correspond to the IMSI in a certain VLR area in order to enhance the security of the system. The base station (BTS) calls the subscriber by using the number. The TMSI is allocated as a protection measure added to prevent the IMSI from being stolen, and is dynamically allocated to the IMSI by the VLR after authentication when the MS performs location registration or location update, and is transmitted on a dedicated signaling channel.

Location area identification codes (Location Area Identity, LAI), LAI are used for location updating of mobile subscribers.

The embodiment of the application provides a calling method, a calling system, calling equipment and a storage medium based on satellite-vehicle networking integration, aiming at enabling VoLTE network users to page vehicle-mounted terminals of a satellite mobile communication GSM network.

The embodiment of the application provides a calling method, a system, a device and a storage medium based on satellite-vehicle networking integration, and specifically, the following embodiment is used for explaining, and first describes the calling method based on satellite-vehicle networking integration in the embodiment of the application.

The embodiment of the application provides a calling method based on integration of satellite vehicle networking, which relates to the technical field of communication. The calling method based on the integration of the satellite vehicle networking can be applied to a server side of the vehicle networking, and the server side can be configured to be an independent physical server or a server cluster or a distributed system formed by a plurality of physical servers. The vehicle networking is a vehicle information intercommunication service platform built on the basis of the Internet of things, and a service end of the vehicle networking provides vehicle information services, including vehicle type and vehicle system access, vehicle monitoring service and vehicle control service, and can monitor functions such as vehicle positioning, vehicle condition diagnosis, fault alarm, historical track inquiry and the like, so that functions such as remote vehicle control, intelligent cabin setting, vehicle cloud data synchronization and the like are realized. The Internet of vehicles of the embodiment of the application is also provided with a home location register, the home location register stores the user location information under the satellite mobile communication network, and the Internet of vehicles has a network addressing function and realizes vehicle paging transfer.

In an example scenario, referring to fig. 10, fig. 10 is a schematic diagram of a converged network of satellite and internet of vehicles provided in an embodiment of the present application, where the converged network includes a satellite mobile communication network and an internet of vehicles, and the internet of vehicles is carried on a 2/3/4/5G core network on the ground. The satellite mobile communication network is a GSM network, and comprises an access network and a core network, the core network comprises MSC/VLR (mobile switching center/visitor location register), HLR (home location register), SCP (service control point), GMSC/SBC (gateway mobile switching center/session border controller), MGW/SG (media gateway/signaling gateway), and the like, and the satellite terminal UE1 is accessed to the MSC/VLR network element of the core network through the access network. The MGW/SG network element of the satellite mobile communication network is connected with the Internet of vehicles through the international signaling gateway nodes iSTP and HSTP-LSTP (advanced signaling transfer point-low-level signaling transfer point). The car networking comprises UDM network elements and HLR, and the HLR of the car networking stores 2/3/4/5G subscription data of all the car terminals. The VoLTE voice network is borne on a 2/3/4/5G core network on the ground, and can be connected to a GMSC/SBC network element of the satellite mobile communication network through the MGCF where the VoLTE voice network is located, so that voice interaction between the satellite terminal UE1 and the large network terminal UE2 is realized.

Fig. 1 is an optional flowchart of a call method based on satellite internet of vehicles fusion provided in an embodiment of the present application, where the method in fig. 1 may include, but is not limited to, steps S101 to S104.

Step S101, receiving a call request from a media gateway control function network element of an IP multimedia subsystem network, wherein the call request comprises a called number;

step S102, judging whether the called number belongs to the local network according to the home location register, and when the called number does not belong to the local network, sending a roaming number signaling message to the satellite mobile communication network, wherein the roaming number signaling message comprises the called number;

step S103, receiving a roaming number response providing message from the satellite mobile communication network, wherein the roaming number response providing message comprises a mobile station roaming number of a called number in the satellite mobile communication network;

step S104, the call request is routed to the satellite mobile communication network according to the mobile station roaming number.

In the steps S101 to S104 illustrated in the embodiment of the present application, a home location register is set up in the internet of vehicles, where the home location register can open 2G subscription data of a satellite mobile communication network user, and support a 2G voice function, so that the internet of vehicles has the HLR addressing capability of the GSM network. When the IP multimedia subsystem network initiates a call request for a satellite mobile communication network user, the Internet of vehicles acquires a mobile station roaming number of a called number in the satellite mobile communication network by utilizing the HLR addressing capability of the Internet of vehicles, and then routes the call request to the satellite mobile communication GSM network based on the mobile station roaming number, so that the VoLTE user of the IMS network can call to the satellite mobile communication GSM network user through voice.

In step S101 of some embodiments, a VoLTE user located in an IMS network initiates a voice call request to a vehicle terminal under a satellite mobile communication network, and after receiving the voice call request, the IMS network determines that the vehicle terminal is not online, performs domain selection, and sends a call request to the internet of vehicles through an MGCF to address through the internet of vehicles.

In step S102 of some embodiments, after the internet of vehicles receives a call request of a called number, it is determined according to a home location register whether the called number is in the home network, and when the called number is not in the home network, a roaming number signaling (Provide Roaming Number, PRN) message is sent to the satellite mobile communication network, where the PRN message carries the called number, and the called number is an international mobile subscriber identity.

In step S103 of some embodiments, after receiving the PRN message, the satellite mobile communication network queries the VLR network element according to the international mobile subscriber identity to obtain a mobile station roaming number (Mobile Station Roaming Number, MSRN) of the called party in the satellite mobile communication network, and generates a provide roaming number response (SRI ACK) message according to the mobile station roaming number encapsulation and returns the message to the internet of vehicles.

In step S104 of some embodiments, after the SRI ACK message of the internet of vehicles, the mobile station roaming number is parsed, and then the call request from the IMS network is routed to the satellite mobile communication network according to the mobile station roaming number, so as to implement active call initiation by the VoLTE user to the satellite terminal.

In some embodiments, the internet of vehicles further includes a gateway mobile switching center and a unified data management network element, referring to fig. 2, the gateway mobile switching center is configured to perform the following steps:

step S201, receiving a call request from a media gateway control function network element of an IP multimedia subsystem network;

step S202, generating a home address request containing a called number according to a call request, and forwarding the home address request to a unified data management network element to obtain a mobile station roaming number of the called number in a satellite mobile communication network;

step S203, the call request is routed to the satellite mobile communication network according to the mobile station roaming number.

In this embodiment, the Gateway Mobile Switching Center (GMSC) is an entity that provides interconnection between the mobile network and the wired network, queries the location information of the user, and forwards the route to the switch to which the user is to access, so as to complete traffic transfer between the IMS network and the GSM network.

In some embodiments, referring to fig. 3, the unified data management network element is configured to perform the following steps:

step S301, receiving a home address request from a gateway mobile switching center;

step S302, judging whether the called number belongs to the local network according to the home location register, and when the called number does not belong to the local network, sending a roaming number signaling message to the satellite mobile communication network;

Step S303, receiving a roaming number response message from the satellite mobile communication network;

step S304, the mobile station roaming number in the roaming number response message is sent to the gateway mobile switching center.

In this embodiment, the internet of vehicles is supported on the 5G core network, and a Unified Data Management (UDM) network element is a network element of the 5G core network, and a main function of the UDM network element is to provide unified data management functions, including user subscription data management, user authentication, identity decryption, and illegal user interception. In the 5G core network, user data is authenticated and stored through the UDM, the UDR is used for overall management, and standard interfaces are provided for calling and inquiring according to specifications, so that development is realized, and the safety of the data is ensured.

Referring to fig. 4, in some embodiments, the step of determining whether the called number belongs to the home network according to the home location register in step S302 may include, but is not limited to, the following steps:

step S401, inquiring the user position information of the called number stored in the home location register according to the called number;

step S402, when the user position information does not belong to the communication area of the Internet of vehicles, the called number is determined not to belong to the home network.

In this embodiment, the UDM network element queries the user location information stored in the home location register according to the number of the called vehicle-mounted terminal, and determines that the called number does not belong to the home network when the user location information does not belong to the communication area of the internet of vehicles. It should be noted that, when the user location information does not belong to the communication area of the internet of vehicles, it can be understood that the called vehicle terminal automatically accesses the satellite mobile communication network when not in the base station coverage area of the 4/5G ground mobile communication network, so when the user location information does not belong to the communication area of the internet of vehicles, it is determined that the called number does not belong to the internet of vehicles, but accesses the satellite mobile communication network.

According to some embodiments of the present invention, a voice flow of a Volte user dialing a satellite user according to an embodiment of the present application is described in detail with reference to fig. 11 and 12. Fig. 11 is a schematic overall flow chart of a Volte user dialing satellite user voice provided in an embodiment of the present application, and fig. 12 is a schematic diagram of an internet of vehicles addressing and transferring process provided in an embodiment of the present application, specifically as follows:

referring to fig. 11, the overall flow of the volte user dialing satellite user voice is:

the Volte user in the IMS network is used as a calling party to dial the 5G satellite user to trigger the S-CSCF service of the IMS network. The S-CSCF is an abbreviation for serving call session control function (ServiceCall Session Control Function), which is the core of IMS network session control, is located in the home network, performs session control and registration requests for the UE, but when the UE is in session, the S-CSCF handles the session state in the network.

And the Volte network under the IMS network obtains the target I-CSCF address through the recursive query of the ENUM/DNS network element. Both ENUM and DNS are used to map and translate between telephone numbers and internet addresses, so that users can access and use resources on the internet conveniently, and ENUM can use telephone numbers to find various information such as email, IP telephone numbers, unified messages, IP faxes, or personal web pages of registrants (registries); DNS is used to convert domain names into IP addresses, so that users can access websites and services on the internet through application programs such as a browser. The I-CSCF is the entry point in the home network through which all user connections with the network pass.

The S-CSCF of the IMS network routes the call request of the Volten user to the called target I-CSCF.

The target I-CSCF inquires MMTel (multimedia telephone service) through S-CSCF, judges that the called satellite user is not on line, performs domain selection, and sends the call out of IMS network through MGCF.

The Media plane is formed by a P-SBC (P-Server Buffering Control, buffer control function in PGW) where a calling party is located and an MGW (Media Gateway) of the satellite mobile communication network core network through the GMSC addressed and switched to the satellite mobile communication network core network by the Internet of vehicles.

Referring to fig. 12, the specific process of internet of vehicles addressing and switching is as follows:

s1, an MGCF of an IMS network routes a domain selection call request to a GMSC of the Internet of vehicles;

s2, in the home Internet of vehicles, the GMSC sends SRI (send routing information) information to the UDM integrated with the HLR, sends an HLR addressing request to the UDM/HLR, and the HLR addressing request carries a user number;

s3, the UDM/HLR judges that the user is not in the home network at present, and sends PRN (Provide Roaming Number) information to a satellite mobile communication network core network vMSC (namely a visiting place or called roaming place) to carry the IMSI of the user;

s4, the vMSC inquires that the user roams under the network, returns a PRN ACK message to the UDM/HLR of the Internet of vehicles, and carries a roaming number (MSRN);

s5, the UDM/HLR of the Internet of vehicles returns an SRI ACK message to the GSMC, and carries a roaming number MSRN;

s6, GSMC analyzes according to the roaming number, routes the call request to the visiting place vMSC through the network, and completes the voice call connection.

In some embodiments, the internet of vehicles and the satellite mobile communication network are connected through an international signaling gateway node, referring to fig. 5, the user terminal registration procedure in the home location register is as follows:

step S501, receiving an authentication request message from a satellite mobile communication network to a user terminal through an international signaling gateway node;

Step S502, registering the user terminal in the home location register according to the authentication request message, and returning an authentication response message to the satellite mobile communication network, so that the satellite mobile communication network completes the authentication registration of the user terminal according to the authentication response message.

Specifically, referring to fig. 13, the process of converged registration authentication of the vehicle-mounted satellite terminal of the internet of vehicles in the satellite mobile communication network and the internet of vehicles is specifically as follows:

the vehicle-mounted satellite terminal initiates an authentication request;

the authentication request message is forwarded to a core network GMSC of the satellite mobile communication network via an access network (BSC) of the satellite mobile communication network;

the method comprises the steps that a core network GMSC of a satellite mobile communication network routes a MAP SEND AUTHENTICATION _INFO_REQ signaling (namely a first authentication request message) for authentication to a car networking UDM/HLR through an international signaling gateway node iSTP, through HSTP-LSTP, the UDM/HLR carries out authentication, and an authentication response message MAP SEND AUTHENTICATION _JNFO_RSP is returned;

the core network of the satellite mobile communication network initiates an identity verification request (Authentication request) containing RADN parameters to the vehicle-mounted satellite terminal according to the authentication response message;

the vehicle-mounted satellite terminal calculates SRES parameters according to the RADN parameters, encapsulates the SRES parameters in an identity authentication response (Authentication Response) and sends the SRES parameters to a core network of a satellite mobile communication network;

The core network of the satellite mobile communication network sends CIPHER MODE COMMAND to the vehicle-mounted satellite terminal, and the vehicle-mounted satellite terminal returns CIPHER MODE COMPLETE information to complete authentication response.

In some embodiments, referring to fig. 6, the location update procedure of the user terminal in the home location register is as follows:

step S601, receiving a position update request from a satellite mobile communication network to a user terminal through an international signaling gateway node, wherein the position update request comprises an international mobile subscriber identity, a circuit domain user temporary identifier, a location area identity and a position update type;

step S602, the corresponding user terminal in the home location register is subjected to location updating processing according to the location updating request.

Referring to fig. 7, in some embodiments, in step S602, the step of performing location update processing on the corresponding ue in the home location register according to the location update request may include, but is not limited to, the following steps:

step S701, updating the position information of the user terminal in the home location register according to the position updating request, storing a new position area identification code, and distributing a new circuit domain user temporary identifier for the user terminal;

Step S702, a location area update confirm message is sent to the satellite mobile communication network, so that the satellite mobile communication network sends a location update accept message to the user terminal, wherein the location update accept message includes a new circuit domain user temporary identifier.

Specifically, referring to fig. 14, the location update process of the vehicle satellite terminal of the internet of vehicles in the satellite mobile communication network and the internet of vehicles is specifically as follows:

after the vehicle-mounted satellite terminal completes registration, a position update request (Location updating request) is initiated, wherein the position update request carries TMSI, IMSI, LAI numbers of the vehicle-mounted satellite terminal and marks the position update type;

the satellite mobile communication network core network GMSC routes a LOCATION UPDATE request message (MAP UPDATE LOCATION AREA REQ) to the car networking UDM/HLR via the international signalling gateway node to request LOCATION AREA UPDATEs;

the vehicle networking UDM/HLR and the vehicle satellite terminal carry out position updating processing on the vehicle satellite terminal through a safety authentication flow, wherein the vehicle networking UDM/HLR comprises the steps of updating the position information of the user terminal, storing a new LAI number, allocating a new TMSI number for an MS, and then sending a position updating response message (MAP_UPDATE_location_AREA_ACK) to a satellite mobile communication network core network so as to confirm that the position updating is successful;

The satellite mobile communication network core network GMSC sends a location update accept message (Location updating accept) to the vehicle-mounted satellite terminal, and carries a new TMSI number, and the location update is successful.

According to some embodiments of the invention, the internet of vehicles UDM is modified to support the data signing functions of 5G, 4G and 2G, IMS, a 5G internet of vehicles user opens the 2G voice function at the same time of the UDM, signing 2G account opening data, and 2G G-MAP information can be processed normally. The 5G Internet of vehicles user completes registration in its core network through the access network of the satellite mobile communication network, and uses the 2G account opening data of the Internet of vehicles UDM, including authentication and location update information registration. The MSC of the Internet of vehicles is modified to support the HLR addressing capability of the GSM network, a 5G Internet of vehicles user registers in the satellite GSM network, when the satellite terminal is used as a called party, the MGCF of the calling IMS network is routed to the GMSC of the Internet of vehicles according to the number segment, G-MAP protocol conversion is completed by the GMSC, the gateway is addressed to the UDM of the Internet of vehicles of the home country, the registration information of the called party in the core network of the satellite mobile communication network is obtained, and the connection of the voice called party is completed.

Referring to fig. 8, the embodiment of the present application further provides a calling system based on integration of satellite and internet of vehicles, where the calling system based on integration of satellite and internet of vehicles is applied to the internet of vehicles, the internet of vehicles includes a home location register, the home location register stores user location information under a satellite mobile communication network, and the calling system based on integration of satellite and internet of vehicles includes:

the second module is used for judging whether the called number belongs to the local network according to the home location register, and sending a roaming number signaling message to the satellite mobile communication network when the called number does not belong to the local network, wherein the roaming number signaling message comprises the called number;

a third module for receiving a roaming number response providing message from the satellite mobile communication network, wherein the roaming number response providing message includes a mobile station roaming number of the called number in the satellite mobile communication network;

and a fourth module for routing the call request to the satellite mobile communication network according to the mobile station roaming number.

It can be understood that the content in the above-mentioned calling method embodiment based on the integration of the satellite and the internet of vehicles is applicable to the embodiment of the system, and the functions specifically realized by the embodiment of the system are the same as those of the above-mentioned calling method embodiment based on the integration of the satellite and the internet of vehicles, and the beneficial effects achieved by the embodiment of the calling method embodiment based on the integration of the satellite and the internet of vehicles are the same as those achieved by the embodiment of the calling method embodiment based on the integration of the satellite and the internet of vehicles.

The embodiment of the application also provides electronic equipment, which comprises: the system comprises a memory, a processor, a program stored in the memory and capable of running on the processor, and a data bus for realizing connection communication between the processor and the memory, wherein the program realizes the calling method based on the integration of the satellite vehicle networking when being executed by the processor. The electronic equipment can be any intelligent terminal including a tablet personal computer, a vehicle-mounted computer and the like.

Referring to fig. 9, fig. 9 illustrates a hardware structure of an electronic device according to another embodiment, the electronic device includes:

the processor 901 may be implemented by a general purpose CPU (central processing unit), a microprocessor, an application specific integrated circuit (ApplicationSpecificIntegratedCircuit, ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solutions provided by the embodiments of the present application;

the memory 902 may be implemented in the form of read-only memory (ReadOnlyMemory, ROM), static storage, dynamic storage, or random access memory (RandomAccessMemory, RAM). The memory 902 may store an operating system and other application programs, and when the technical solutions provided in the embodiments of the present application are implemented by software or firmware, relevant program codes are stored in the memory 902, and the processor 901 invokes a calling method based on satellite internet of vehicles fusion to execute the embodiments of the present application;

An input/output interface 903 for inputting and outputting information;

the communication interface 904 is configured to implement communication interaction between the device and other devices, and may implement communication in a wired manner (e.g. USB, network cable, etc.), or may implement communication in a wireless manner (e.g. mobile network, WIFI, bluetooth, etc.);

a bus 905 that transfers information between the various components of the device (e.g., the processor 901, the memory 902, the input/output interface 903, and the communication interface 904);

wherein the processor 901, the memory 902, the input/output interface 903 and the communication interface 904 are communicatively coupled to each other within the device via a bus 905.

The embodiment of the application also provides a storage medium, which is a computer readable storage medium and is used for computer readable storage, the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors so as to realize the calling method based on the satellite Internet of vehicles fusion.

The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The embodiments described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and as those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

It will be appreciated by those skilled in the art that the technical solutions shown in the figures do not constitute limitations of the embodiments of the present application, and may include more or fewer steps than shown, or may combine certain steps, or different steps.

The system embodiments described above are merely illustrative, in that the units illustrated as separate components may or may not be physically separate, i.e., may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.

The terms "first," "second," "third," "fourth," and the like in the description of the present application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in this application, "at least one" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

In the several embodiments provided in this application, it should be understood that the disclosed systems and methods may be implemented in other ways. For example, the system embodiments described above are merely illustrative, e.g., the division of the above elements is merely a logical functional division, and there may be additional divisions in actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, system or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including multiple instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing a program.

Preferred embodiments of the present application are described above with reference to the accompanying drawings, and thus do not limit the scope of the claims of the embodiments of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the embodiments of the present application shall fall within the scope of the claims of the embodiments of the present application.

Claims

1. The calling method based on the satellite-vehicle networking integration is characterized by being applied to the vehicle networking, wherein the vehicle networking comprises a home location register, the home location register stores user location information under a satellite mobile communication network, and the calling method based on the satellite-vehicle networking integration comprises the following steps:

2. The method of claim 1, further comprising a gateway mobile switching center and a unified data management network element, the gateway mobile switching center being configured to perform the steps of:

3. The calling method based on the integration of the satellite vehicle networking according to claim 2, wherein the unified data management network element is configured to perform the following steps:

receiving a home address request from a gateway mobile switching center;

4. A calling method based on integration of satellite vehicle networking according to claim 3, wherein the step of judging whether the called number belongs to the home network according to the home location register comprises the following steps:

5. The calling method based on the integration of the satellite internet of vehicles according to claim 1, wherein the internet of vehicles and the satellite mobile communication network are connected through an international signaling gateway node, and the user terminal registration process in the home location register is as follows:

6. The calling method based on the integration of the satellite vehicle networking according to claim 5, wherein the location updating process of the user terminal in the home location register is as follows:

7. The calling method based on the integration of the satellite vehicle networking according to claim 6, wherein the processing of the location update of the corresponding user terminal in the home location register according to the location update request comprises the following steps:

8. The utility model provides a calling system based on satellite car networking fuses, its characterized in that, calling system based on satellite car networking fuses is applied to in the car networking, the car networking includes home location register, home location register stores the user position information under the satellite mobile communication network, calling system based on satellite car networking fuses includes:

9. An electronic device comprising a memory, a processor, a program stored on the memory and executable on the processor, and a data bus for enabling a connection communication between the processor and the memory, the program when executed by the processor implementing the steps of the satellite car networking convergence based calling method of any of claims 1 to 7.

10. A storage medium, which is a computer-readable storage medium, for computer-readable storage, characterized in that the storage medium stores one or more programs executable by one or more processors to implement the steps of the satellite-internet-of-vehicles fusion-based calling method of any of claims 1 to 7.