CN215773581U - Virtual operator vehicle-mounted core network networking architecture - Google Patents

Abstract

The utility model provides a virtual operator vehicle-mounted core network networking architecture, which comprises core network interconnection, voice service interconnection and short message interconnection; in the core network interconnection, the vehicle-mounted core network adopts a lightweight LTE/5G fusion network element, and the vehicle-mounted core networks of all the carriages are uniformly managed by a private cloud platform; the vehicle-mounted core network element comprises a UPF/GW-U integrated network element, an AMF/MME integrated network element, an SMF/GW-C integrated network element, an IMS network element and an MEC local application platform, and the virtual operator ground core network public network element comprises an SMSF, NSSF, CHF, NRF, PCF/PCRF integrated network element, SEPP, NEF and RADIUS. The utility model can effectively solve the communication requirement of the crowd-dense mobile scene, is an important communication service scene as the same as the fixed dense scene of a sports stadium, a concert and the like, and can finally meet the service requirements of a terminal user on large capacity, high bandwidth and high-speed movement by adopting a specific technical means.

Description

Virtual operator vehicle-mounted core network networking architecture

Technical Field

The utility model relates to the field of 5G mobile communication, in particular to a virtual operator vehicle-mounted core network networking architecture.

Background

Generally, a virtual operator provides a specific package service and sells a specific SIM card number segment on the basis of a public operator network. For this purpose, a corresponding operation support system needs to be built and is in butt joint with the operation support system of a public network operator, and a virtual operator strongly depends on a certain public network operator, and the virtual operator is essentially in a role of outsourcing communication services.

SUMMERY OF THE UTILITY MODEL

The utility model provides a virtual operator vehicle-mounted core network networking architecture for solving the problems in the prior art, can effectively meet the communication requirements of mobile scenes with dense crowds, is an important communication service scene as fixed and dense scenes such as stadiums, concerts and the like, and can finally meet the service requirements of large-capacity, high-bandwidth and high-speed movement of terminal users by adopting a specific technical means.

The utility model comprises core network interconnection, voice service interconnection and short message interconnection.

In the core network interconnection, the vehicle-mounted core network adopts a lightweight LTE/5G fusion network element, and the vehicle-mounted core networks of all compartments are uniformly managed by a private cloud platform; the vehicle-mounted core network element comprises a UPF/GW-U integrated network element, an AMF/MME integrated network element, an SMF/GW-C integrated network element, an IMS network element and an MEC local application platform, and the virtual operator ground core network public network element comprises an SMSF, NSSF, CHF, NRF, PCF/PCRF integrated network element, SEPP, NEF and RADIUS.

In the voice interconnection, IBCF realizes IMS signaling intercommunication, and TrGW realizes IMS media intercommunication; the private network sets IBCF/TrGW at the railway bureau level to be interconnected with the provincial IBCF/TrGW of each operator; the vehicle-mounted IMS and the ground IMS complete VONR voice intercommunication, and the NSA mode falls back to an LTE mode according to an EPS fallback mode; the IMS authentication HSS is agreed by the public network operator 5GC UDM.

Further improved, in the short message interconnection, an SMS over NAS mode is adopted, and the private network realizes the intercommunication with the provincial message center of the public network in a railway office and by arranging unified SMSF and STP.

The utility model has the beneficial effects that:

1. the virtual operator does not sell SIM card resources, constructs the whole network except authentication network elements, provides mobile communication services, and is a networking mode that a service place is located in a special occasion of a carriage moving at high speed. The virtual operator does not need to build a background operation support system, a service object is not limited to a specific operator user, and the LTE/5G communication coverage is provided for all mobile communication users aiming at a specific mobile scene, namely a train carriage, so that the high-quality mobile communication service of overcoming the Doppler effect and the vehicle body penetration loss during high-speed movement is an innovation from the technical means of organization operation and networking.

Drawings

Fig. 1 is a schematic diagram of public-private network core network interconnection.

Fig. 2 is a schematic diagram of public and private network VONR voice interconnection.

Fig. 3 is a schematic diagram of a public private network short message interconnection scheme.

Detailed Description

The utility model will be further explained with reference to the drawings.

The utility model comprises core network interconnection, voice service interconnection and short message interconnection.

1. And (4) a core network interconnection scheme.

As shown in fig. 1, the interconnection of the core networks is implemented by adopting a lightweight LTE/5G fusion network element, and the vehicle-mounted core networks of all compartments are uniformly managed by a private cloud platform.

The network elements of the vehicle-mounted core network comprise a UPF/GW-U integrated network element, an AMF/MME integrated network element, an SMF/GW-C integrated network element, an IMS network element and an MEC local application platform.

The public network elements of the virtual operator ground core network comprise SMSF, NSSF (optional), CHF, NRF, PCF/PCRF unification network elements, SEPP, NEF and RADIUS (optional).

The private network is not provided with a UDM/AUSF network element, authentication and user data are completed by related network elements of a public network home operator core network according to a different network roaming mode, a safety marginal gateway proxy SEPP is arranged between the public network and the private network, a uniform vSEPP of the private network is respectively butted with hSEPP of each public network operator, and a butted point is arranged between a private network railway station and a public network adjacent inter-provincial core network.

2. And (4) a voice interconnection scheme.

Voice interworking as shown in fig. 2, IBCF realizes IMS signaling interworking, and TrGW realizes IMS media interworking;

the private network sets IBCF/TrGW at the railway bureau level to be interconnected with the provincial IBCF/TrGW of each operator;

the vehicle-mounted IMS and the ground IMS complete VONR voice intercommunication, and the NSA mode falls back to an LTE mode according to an EPS fallback mode;

the IMS authentication HSS is agreed by the public network operator 5GC UDM.

3. Short message interworking scheme.

The short message interconnection scheme of the public and private networks is as shown in fig. 3, and the private networks are communicated with the provincial message center of the public network by adopting an SMS over NAS mode and setting unified SMSF and STP in a railway bureau;

IP-SM-GW and 5G SMSF message intercommunication of 2G SMSC and 3G of vehicle-mounted private network and public network and LTE can be realized;

only realizing the intercommunication of short messages temporarily due to the evolution of protocol standard; upgrading the STP version in future can realize the intercommunication of RCS messages, and for 5G rich media group chat messages, users who create groups manually select to transfer the focus of group chat to SMSF of each operator or virtual operator private network.

Abbreviations

gNB 5G base station

NG-eNB next generation evolution base station

AMF Authentication Management Field Authentication Management entity

IMS IP Multimedia Subsystem IP media Subsystem

Unified Data management platform for UDM (Universal Data management) Unified Data Manager

PCF policy control function

PCRF Policy and Charging Rules Function

AUSF Authentication Server Function

SEPP Security Edge Protection Proxy Security boundary Protection agent

SMSF Short Message Service Function

UPF User Plane Function User Plane functionality

SMF Session Management function Session Management function

AMF Access and Mobility Management Function

NRF Network repeatability Function Network warehousing Function

CHF Charging Function

MANO management and organization management and orchestration

5GC 5G CORE 5G CORE network

RADIUS Remote Authentication Dial-In User Server Remote Authentication Dial-In User service

NEF Network expose Function Network open Function

NSSF Network Slice Selection Function

LBO Local break out Local breakout

PLMN Public Land Mobile Network (PLMN)

HSS Home Subscriber Server

DNS Domain Name System

OTA Over-the-Air

VPN Virtual Private Network

LTE Long Term Evolution

MEC Mobile/Multi-Access Edge Computing

SIM Subscriber Identity Module

ENUM E, 164 Number to Uniform Resource Identifier Mapping telephone Number Uniform Resource Identifier Mapping

BGCF Breakout Gateway Control Function

IBCF Interconnect Border Control Function interconnection boundary Control Function

TrGW Transition Gateway

P-CSCF Proxy-Call Session Control FuncTIon Proxy Call Session Control FuncTIon

I-CSCF interworking-Call Session Control Function interrogation-Call Session Control Function

S-CSCF Serving-Call Session Control Function

STP Signaling Transfer Point information transmission node

SMSC Short Message Service Center Short Message Center

IP-SM-GW IP-Short-Message-Gateway IP Short Message Gateway

VONR voice over new radio over air interface voice scheme

NAS non-access-stratum

MVNO Mobile Virtual Network Operator Mobile Virtual Operator

RCS Rich media Communication Services

NSA Non-standalones are not a stand-alone networking approach.

While the utility model has been described in terms of its preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims (3)

1. A virtual operator vehicle-mounted core network networking architecture is characterized in that: the method comprises core network interconnection, voice service interconnection and short message interconnection;

in the core network interconnection, the vehicle-mounted core network adopts a lightweight LTE/5G fusion network element, and the vehicle-mounted core networks of all the carriages are uniformly managed by a private cloud platform; the vehicle-mounted core network element comprises a UPF/GW-U integrated network element, an AMF/MME integrated network element, an SMF/GW-C integrated network element, an IMS network element and an MEC local application platform, and the virtual operator ground core network public network element comprises an SMSF, NSSF, CHF, NRF, PCF/PCRF integrated network element, SEPP, NEF and RADIUS.

2. The virtual operator in-vehicle core network networking architecture of claim 1, wherein: in the voice interconnection, IBCF realizes IMS signaling intercommunication, and TrGW realizes IMS media intercommunication; the private network sets IBCF/TrGW at the railway bureau level to be interconnected with the provincial IBCF/TrGW of each operator; the vehicle-mounted IMS and the ground IMS complete VONR voice intercommunication, and the NSA mode falls back to an LTE mode according to an EPS fallback mode; the IMS authentication HSS is agreed by the public network operator 5GC UDM.

3. The virtual operator in-vehicle core network networking architecture of claim 1, wherein: in the short message interconnection, an SMS over NAS mode is adopted, and the intercommunication between the private network and a provincial message center of the public network is realized by the private network in a railway bureau and by setting the unified SMSF and STP.

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