nsa 5g only
Non-Standalone 5G (NSA 5G) refers to an initial deployment strategy for 5G networks that builds upon existing 4G LTE infrastructure. It allows for the integration of 5G capabilities without requiring a complete overhaul of the entire network. Here are some key technical aspects of NSA 5G:
- Duality with LTE:
- NSA 5G networks leverage the existing LTE infrastructure, using it as an anchor for control plane functions. The control plane involves managing signaling, authentication, and other essential functions.
- New Radio (NR):
- NSA 5G introduces a new radio access technology known as New Radio (NR). NR is designed to provide higher data rates, lower latency, and better connectivity compared to LTE.
- Dual Connectivity:
- NSA 5G allows for dual connectivity, where a device simultaneously connects to both 4G LTE and 5G NR networks. This enables a smooth transition between the two technologies based on network conditions and the capabilities of the device.
- Deployment Phases:
- In the initial phases of 5G deployment, operators often opt for NSA to accelerate the rollout of 5G services. This allows them to take advantage of the improved data rates and capacity offered by 5G, while still relying on the existing LTE core network.
- LTE Core Network:
- The LTE core network handles certain core functions like mobility management, session management, and voice services. The 5G NR radio access network is connected to the LTE core, and the two work together to provide seamless connectivity.
- Migration to SA (Standalone):
- While NSA 5G provides an expedited path to introducing 5G services, the long-term goal for many operators is to migrate towards Standalone (SA) 5G. SA 5G involves a completely independent 5G core network, providing end-to-end 5G capabilities.