What are the SA and NSA 5G networks?
What are the SA and NSA 5G networks?
The EPON OLT is a device serving as the endpoint for the service provider in a passive optical network. In other words, the Optical Line Terminal (OLT) manages the Ethernet Passive Optical Network (EPON). This technology offers multiple services thanks to its point-to-multipoint passive optical transmission.
NSA refers to 5G Non-Standalone network, a one-to-many networking mode, a core network with two base stations, to increase the bandwidth of the hotspot area as the main goal, no independent signaling plan. It requires existing 4G LTE infrastructure to enable 5G connectivity and relies on 4G base stations and core networks to operate.
SA stands for autonomous network, a one-to-one networking model, in which a central network is equipped with a base station. From the terminal, the new radio to the core network, it complies with 5G-related standards, supports various 5G interfaces, and realizes 5G functions and services.
In terms of meaning, it may not be easy to understand. I now take a simple example to explain NSA and SA.
There are two classes, class 2 and class 3.
The NSA mode appears one teacher serving both classes 2 and 3. This way the cost of the school is low and there is no need to employ many teachers to look after each class. However, a teacher with two classes of students will inevitably be difficult, unable to meet all the needs of both classes and care for each student at the same time.
The SA mode amounts to having two teachers responsible for class 2 and class 3 respectively. The cost of the school is higher, but in this way, two teachers can ensure fine management of their class and take care of each student in a more complete way.
In this example, the teacher is the core network, and the two classes are the 4G and 5G base stations.
The advantage of the NSA is to use the original 4G network as efficiently as possible. The original 4G base station can also support 5G through software upgrades, saving investment, just like a school makes full use of teachers' resources to manage classes. The SA network can provide a better Internet experience for users than the NSA network, including higher speed and ultra-low latency. SA has advantages in low latency and wide connections, i.e. double coverage and double speed.
When we choose different 5G products, such as mobile phones, 5G CPE, MiFi, etc., we need to confirm whether the products support SA and NSA mode. For example, when 5G smartphones appeared, many of them only supported NSA mode, and therefore could only be used in NSA networks, but not in SA networks. Today, more and more 5G products can support SA and NSA modes simultaneously. For example, SMILEMBB's 5G CPE and 5G MiFi support SA and NSA network modes. The SmileMbb 5G CPE XZC5552 is easy to install, just plug in the Micro-SIM card. Connect your phone, laptop and other Wi-Fi devices to the router from anywhere. (Click on the images to learn more)
