5G Latency Improvement

[longtermevolution]

Is anyone currently working on 5G latency improvement in Huawei networks solely through parameter optimization? I would appreciate any insights or experiences you can share on this topic.

Thanks in advance

[punto]

Hi, please ,could you share some of the results and parameter values changed, as longtermevolution mentioned, for Huawei networks 5G ?
Thanks for any help !

[lihanbok]

This is very good topic, I want to learn more about this!
Thanks!

[punto]

Hi,
could you share the delay percentage of each part of 5G network latency decomposition model :
1) application/UE
2) RAN (UE RAN part + radio interface + gNB)
3) Transport Network
4) Core Network
5) Application +Cloud
Which part is greatest challenge in your Huawei network?

[subway]

Testing Huawei 5G SA with a local core, the delay is more than on 4G. The latency diff is clearly radio related:

On 4G the latency is stable 12-14ms.
On 5G SA the latency is between 6ms and 30ms, averaging around 18-20ms.


Different UEs get the same result, so not UE specific.
Every trivial part is checked already (DRX and power save features are all turned off).
The subframe config is 4:1

So I wonder if someone can come up with something.

[sedicla]

Improving 5G latency in Huawei networks through parameter optimization is a critical focus area,
with ongoing efforts to enhance network performance. Huawei has developed intelligent network optimization solutions,
such as the 5G B.E.S.T. Network, which leverages the DISCOVERY platform to provide sub-solutions for network latency optimization.
This approach has been instrumental in reducing cell-edge latency by up to 20% using techniques like Huawei's unique Super FEC.

In collaboration with operators like Sunrise, Huawei has demonstrated significant improvements in 5G network performance through parameter optimization.
Their joint optimization project led to a 47% enhancement in average 5G throughput and a peak throughput nearing 1.7 Gbps.
These efforts were recognized with the 2020 GLOTEL Project Delivery Perfection Award.

Additionally, Huawei's focus on advanced antenna technologies, including beamforming and Massive MIMO, plays a crucial role in reducing latency.
Parameter optimization ensures these technologies are effectively utilized to minimize interference and enhance signal reliability.

For practitioners seeking to optimize 5G latency, engaging with Huawei's technical resources and collaborating with their network optimization
teams can provide valuable insights and tailored solutions.

[punto]

Dear Sedicla,
Thanks for these words you added.
Please, share to us, some engineering and technical details, parameter changes and results, positive and negative sides of those parameter changes.
We would like to test some recommendations of mentioned excellent 5G parameter optimization achievements !
Thanks, P

[sedicla]

Thank you for finding it useful! Unfortunately, I am not in a position to offer some engineering and technical facts, like parameter changes and their impact, due to company policy and confidentiality restrictions. I appreciate your co-operation, and I'd be more than glad to discuss general principles or industry best practice relating to 5G optimisation if that would be of help!

[punto]

Thanks @sedicla, we understand, ... so we speak just some of general 5G optimization actions
Specifically, talking on 5G latency optimization, which implementation would bring biggest improvement for latency improvement ?

1) Super FEC (Forward Error Correction) by using advanced coding mechanisms to recover data with fewer retransmissions
2) Dynamic Transmission Optimization and implementing AMC (Adaptive Modulation and Coding) to adjust transmission rates according to RF conditions
3) Smart Scheduling Algorithms for cell-edge users to reduce packet queuing
5) Beamforming and massive MIMO to improve signal strength at the cell edge

[sedicla]

Here's some good papers from E******* of 5G latency optimization and innovations around it:

Enabling Time-Critical Applications Over 5G with Rate Adaptation
https://www.e*******.com/en/reports-...ate-adaptation

Meeting 5G Latency Requirements with Inactive State
https://www.e*******.com/en/reports-...inactive-state

Enhancing RAN Performance with AI
https://www.e*******.com/en/reports-...rmance-with-ai

Deployment Strategies for Ultra-Reliable and Low-Latency Communication in Factory Automation
https://www.e*******.com/en/reports-...ory-automation

XR and 5G: Extended Reality at Scale with Time-Critical Communication
https://www.e*******.com/en/reports-...-communication