In the nsa networking architecture, what is the interface between nr and epc defined by 3gpp

In the nsa networking architecture, the interface between nr and epc defined by 3gpp is the s1 interface; the nsa non-independent networking architecture means that under this architecture, 5G must rely on the 4G network for deployment. 3gpp mainly specifies Based on the GSM core network, UTRA is the specification of the third generation technology of the wireless interface, and the S1 interface is the communication interface between the base station and the packet core network.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

In the NSA networking architecture, what is the interface between nr and epc defined by 3gpp

In the nsa networking architecture, the interface between nr and epc defined by 3gpp is the s1 interface

The S1 interface is the communication interface between LTE eNodeB (base station) and EPC (packet core network). The LTE system is divided into a wireless access network and a core network.

NSA

NSA: Non-independent networking architecture, which means that under this architecture, 5G must rely on the 4G network for deployment. The 4G protocol stack architecture is used between 5G terminals and the core network. The 4G core network can support NSA and achieve 5G base station access with a simple upgrade. NSA terminals need to support simultaneous access to 4G base stations and 5G base stations (called dual connectivity). In this architecture, 5G base stations mainly use their high-bandwidth characteristics to improve user data transmission capabilities. Using NSA architecture can quickly build 5G networks with low construction costs.

SA

SA: Independent networking architecture, which means 5G independent networking, does not rely on 4G network. In this architecture, terminals do not need to access 4G base stations, and all signaling and data are completed by 5G base stations. At this time, a new 5G core network must be built. The 5G core network introduces many new technical features (such as service-oriented architecture, etc.). It is generally deployed in the data center using virtualization technology, and the construction cost is high.

SA architecture introduces many new features, the most important of which is slicing (which means building multiple independent virtual networks on one network to meet different business needs). SA network is the evolution direction of NSA network

##3GPP##3GPP (3rd Generation Partnership Project, No. The goal of the Third Generation Partner Program is to achieve a smooth transition from 2G networks to 3G networks, ensure backward compatibility of future technologies, and support easy network construction and roaming and compatibility between systems. Its functions: 3GPP mainly formulates the specifications of the third generation technology based on the GSM core network and UTRA (FDD is W-CDMA technology, TDD is TD-SCDMA technology) as the wireless interface.

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