5G Throughput Optimization Basics #3 - Control Channel Scheduling (PDCCH vs PDSCH)
15.6 هزار بار بازدید -
3 سال پیش
-
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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?
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-------------------------------------------------------------------------------------------------------------
5G Throughput Optimization Basics #1 – Data Scheduling & Link Adaptation
5G Throughput Optimization Basics #1 ...
5G Throughput Optimization Basics #2 - BLER Target: Fixed Or Variable?
5G Throughput Optimization Basics #2 ...
5G Call Flows & Signaling (Session 1): How a 5G UE performs Initial Access
5G Call Flows (Session 1): How a 5G U...
5G Call Flows (Session 2): 5G Intra-gNB & Inter-gNB Mobility Overview
5G Call Flows (Session 2): 5G Intra-g...
5G Call Flows (Session 3): 5G Drop Rate - How To Tackle 5G Call Drops
5G Call Flows (Session 3): 5G Drop Ra...
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 - Twitter: ourtechplanet
Like Us on Facebook - Facebook: 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
5G Throughput Optimization Basics #1 ...
5G Throughput Optimization Basics #2 - BLER Target: Fixed Or Variable?
5G Throughput Optimization Basics #2 ...
5G Call Flows & Signaling (Session 1): How a 5G UE performs Initial Access
5G Call Flows (Session 1): How a 5G U...
5G Call Flows (Session 2): 5G Intra-gNB & Inter-gNB Mobility Overview
5G Call Flows (Session 2): 5G Intra-g...
5G Call Flows (Session 3): 5G Drop Rate - How To Tackle 5G Call Drops
5G Call Flows (Session 3): 5G Drop Ra...
3 سال پیش
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