Hello guys… I am a little confused when comparing 5G SA vs 5G NSA vs 5G DSS.
5G SA (Standalone) uses a 5G RAN and a cloud-native 5G core.
5G NSA (Non-standalone) uses a combination of existing 4G LTE architecture with a 5G RAN. (Creates a 5G network with 4G infrastructure using dual connectivity).
5G DSS (Dynamic spectrum sharing) another method of deploying 5G with 4G technology. (Permits 4G LTE and 5G NR to coexist in the same frequency band).
- 5G DSS can be SA or NSA
When a mobile device supports both of 𝟓𝐆 & 𝟒𝐆 technology, it is called a Dual Mode 𝟓𝐆 supported device.
𝟓𝐆-enabled smartphone will connect to a 𝟓𝐆 or 𝟒𝐆 network depending on conditions.
𝐍𝐒𝐀 (Non-Standalone Access) and 𝐒𝐀 (Standalone Access) are Two 5G network modes.
𝟓𝐆 𝐍𝐒𝐀 depend on the 𝟒𝐆 Network to provide More speed and Higher data bandwidth.
𝐒𝐀 is the true 𝟓𝐆 network with dedicated 𝟓𝐆 Core to provide super speed improvements (𝟏𝟎𝐆𝐛𝐩𝐬) and lower Network latency (delay around 𝟏𝐦𝐬) .
The 𝟓𝐆 SA network is independent of the 𝟒𝐆 network.
𝐍𝐒𝐀 makes it easier for network operators to deploy a 𝟓𝐆 network as it can reuse the current 𝟒𝐆 facilities.
𝐒𝐀 has a 𝟓𝐆 core which can deliver a super-fast and flexible network, ultra-low latency, and then reducing operational costs.
Yes, this is correct, it can be both.
For NSA based 5G, though it is pure 5G but at same time yes one if want can interpet as not pure 5G, because of not taking full advantage of SA based features like Slicing, 5QI etc…
DSS itself a marketing front page attraction for using non-5G spectrum on NSA early teaser so to say!
If DSS is best then why we are still moving towards 5G?
DSS is intermediate step for movement toward 5G till UE terminals echo system gets mature I.e. high percentage of penetration for 5G.
And also for operators who have spectrum available in low Band especially aligning with 2G or 3G sunset, so rather then rolling out on that spectrum 4G or 5G only better use DSS to get both technologies active.
It also help in branding of 5G for wider coverage on low band.
For operators with already having high utilization of 4G over low band then DSS is never recommended, overall capacity and user experience get hit badly roughly 10 ~ 12 % capacity (theoretically 15%) and peak user throughput drops significantly.
It also makes 5G perception poor once they planned to launch mid spectrum, its only to show 5G logo before that and 10-12% is not a great experience at start.