Skip to content
5G Throughput Optimization Basics #3 - Control Channel Scheduling (PDCCH vs PDSCH) episode artwork

Nov 5, 2021 10 min

5G Throughput Optimization Basics #3 - Control Channel Scheduling (PDCCH vs PDSCH)

from Our Technology Planet Hosted by nhy

For 5G performance and user experience, Samsung S21/S21 Ultra series is pretty good! In case you want to buy this phone, please check out following links. UK - https://amzn.to/3BMSW2v USA - https://amzn.to/3HIV3bs Canada - https://amzn.to/3FJmeAj Australia - https://amzn.to/3WqRmMd \"As an Amazon Associate, I earn from qualifying purchases.\" Disclosure: #CommissionsEarned #ourtechplanet #ourtechnologyplanet #technologyplanet 5G Throughput Optimization Basics #3 - Control Channel Scheduling (PDCCH vs PDSCH) In the third session, I have explained the scheduling from the perspective of the Control Channel and how it differs from the Data Channel. It also explains why Control Channel Scheduling is different and the impact of Control vs Data failures. The Control Channel is referring to the PDCCH and the PDCCH is essentially made up of CCEs (Control Channel Elements). However, the allocation of PDCCH is done in group of CCEs and these groups are called PDCCH Aggregation Levels. Typically, in 5G, there are 5 PDCCH Aggregation Levels as given below! - PDCCH Aggregation Level-1 contains 1 CCE - PDCCH Aggregation Level-2 contains 2 CCEs - PDCCH Aggregation Level-4 contains 4 CCEs - PDCCH Aggregation Level-8 contains 8 CCEs - PDCCH Aggregation Level-16 contains 16 CCEs Once the eNB/gNB get the CQI, it is converted to a certain PDCCH Aggregation Level. Low PDCCH Aggregation has lesser overhead (low CCE count) and it is used for UEs in good channel conditions while Higher PDCCH Aggregation has higher overhead (high CCE count) and it is used for UEs in bad radio conditions Basically, higher the PDCCH Aggregation Level, higher the robustness and decoding capability of the PDCCH but higher the overhead too! 0:00 Start 0:45 Control Channel Scheduling & CQI 3:00 Link Adaptation Algorithm 4:23 PDCCH & PDSCH BLER 7:45 Why Is PDCCH More Important? ---------------------------------------------------------------------------------------------------------- Follow us on Twitter - https://twitter.com/ourtechplanet Like Us on Facebook - https://www.facebook.com/ourtechplanet You can also visit us on our blog site - https://ourtechplanet.com/ in order to read our articles in detail and know more about who we are and what we do. ------------------------------------------------------------------------------------------------------------- 5G Throughput Optimization Basics #1 – Data Scheduling & Link Adaptation https://youtu.be/Jm03INd9Nuw 5G Throughput Optimization Basics #2 - BLER Target: Fixed Or Variable? https://youtu.be/ccCeMXILGX4 5G Call Flows & Signaling (Session 1): How a 5G UE performs Initial Access https://youtu.be/uLB-WyBpFKE 5G Call Flows (Session 2): 5G Intra-gNB & Inter-gNB Mobility Overview https://youtu.be/VSdc74DS3FA 5G Call Flows (Session 3): 5G Drop Rate - How To Tackle 5G Call Drops https://youtu.be/BYa7r_-awZE

Episode details come from the podcast's RSS feed.

Embed this episode

Ready to play

5G Throughput Optimization Basics #3 - Control Channel Scheduling (PDCCH vs PDSCH)

0:00 10:23

No transcript yet.

Requests help us decide what to transcribe next.

Frequently asked questions

How long is this episode of Our Technology Planet?

This episode is 10 minutes long.

When was this Our Technology Planet episode published?

This episode was published on November 5, 2021.

Can I download this Our Technology Planet episode?

Yes. Use the download control on the episode player to save the publisher-provided media file.