5G SA vs 5G NSA vs 5G DSS

Hello guysโ€ฆ I am a little confused when comparing 5G SA vs 5G NSA vs 5G DSS.

Admin note: this post was updated with image below.

  • 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
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๐–๐ก๐š๐ญ ๐ข๐ฌ ๐ƒ๐ฎ๐š๐ฅ ๐ฆ๐จ๐๐ž ๐Ÿ“๐† ?

  • When a mobile device supports both of ๐Ÿ“๐† & ๐Ÿ’๐† technology, it is called a Dual Mode ๐Ÿ“๐† supported device.

  • ๐Ÿ“๐†-enabled smartphone will connect to a ๐Ÿ“๐† or ๐Ÿ’๐† network depending on conditions.

๐–๐ก๐š๐ญ ๐ข๐ฌ ๐๐ข๐Ÿ๐Ÿ๐ž๐ซ๐ž๐ง๐œ๐ž ๐›๐ž๐ญ๐ฐ๐ž๐ž๐ง ๐๐’๐€ ๐š๐ง๐ ๐’๐€ ๐Ÿ“๐†?

  • ๐๐’๐€ (Non-Standalone Access) and ๐’๐€ (Standalone Access) are Two 5G network modes.

  • ๐Ÿ“๐† ๐๐’๐€ depend on the ๐Ÿ’๐† Network to provide More speed and Higher data bandwidth.

  • ๐’๐€ is the true ๐Ÿ“๐† network with dedicated ๐Ÿ“๐† Core to provide super speed improvements (๐Ÿ๐ŸŽ๐†๐›๐ฉ๐ฌ) and lower Network latency (delay around ๐Ÿ๐ฆ๐ฌ) .

  • The ๐Ÿ“๐† SA network is independent of the ๐Ÿ’๐† network.

๐–๐ก๐š๐ญ ๐š๐ซ๐ž ๐ญ๐ก๐ž ๐š๐๐ฏ๐š๐ง๐ญ๐š๐ ๐ž๐ฌ ๐จ๐Ÿ ๐Ÿ“๐† ๐๐’๐€ ๐š๐ง๐ ๐’๐€ ๐ง๐ž๐ญ๐ฐ๐จ๐ซ๐ค๐ฌ?

  • ๐๐’๐€ makes it easier for network operators to deploy a ๐Ÿ“๐† network as it can reuse the current ๐Ÿ’๐† facilities.

  • ๐’๐€ has a ๐Ÿ“๐† 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 etcโ€ฆ

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.

So whatโ€™s the exactly difference between 5G DSS and NSA?

5G has 2 deployment modes:

  • NSA: 5G network in Non-Standalone Mode
  • SA: 5G network in Sandalone Mode.

This article explain the concepts in a very simple way (as simply as possible).

Read the article (and credits): :point_down: