One of the interesting features of 5G is Ultra-Reliability and Low-Latency Communication or URLLC. It has been enhanced as part of 3GPP Release-16. A summary of the changes in eURLLC can be seen in the picture above.
This ATIS webinar that I blogged about last week covered this topic as well. For example L1/L2 changes have been summarised nicely in this Qualcomm slide above while the slide from Intel speaker below looks at redundant transmission and session continuity.
Redundant transmission in the user plane is an extremely useful feature, especially if the packets are mission critical and have to reach from the source to their destination in a guaranteed time / reliability.
Dual connectivity will enable this redundant path when required to meet a guaranteed reliability.
Here is a short video from the training company Mpirical, explaining the the 5G eURLLC feature:
- The 3G4G Blog: ATIS Webinar on ‘5G Standards Developments in 3GPP Release 16 and Beyond’
- The 3G4G Blog: Carrier Aggregation (CA) and Dual Connectivity (DC)
- The 3G4G Blog – Ultra Reliability: 5x9s (99.999%) in 3GPP Release-15 vs 6x9s (99.9999%) in 3GPP Release-16
- The 3G4G Blog: Anritsu Webinar on ‘Evolution of 5G from 3GPP Rel-15 to Rel-17 and Testing Challenges’
- The 3G4G Blog: 2-step RACH Enhancement for 5G New Radio (NR)