5G Ran

1. 5G NR: Radio
Networks @ Udemy
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2. The RAN Protocol Stack
UE
MAC
RLC
PHY
NAS
MAC
RLC
PDCP
PHY
NAS
gNodeB AMF
PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
UE gNodeB
User Plane Protocol Stack Control Plane Protocol Stack

3. @ Udemy
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4. Physical Layer
PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
Efficient wireless communication
UE gNodeB
@ Udemy
User Plane Protocol Stack
SDAP© 5G N
SDR
AP : Radio Access Networks

5. Medium Access Control Layer
PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
Retransmission,
UE gNodeB
Muliplexing/Demultiplexing,
Scheduling
@ Udemy
User Plane Protocol Stack
SDAP© 5G N
SDR
AP : Radio Access Networks

6. Radio Link Control Layer
PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
ARQ,
UE gNodeB
@ Udem
Seg
y
mentation
User Plane Protocol Stack
SDAP© 5G N
SDR
AP : Radio Access Networks

7. Packet Data Convergence Protocol
MAC
RLC
PDCP
PHY
SDAP
MAC
RLC
PDCP
PHY
SDAP
User Plane Protocol Stack
Header compression,
UE gNodeB
Ciphering & Integrity protection,
Duplicate removal
@ Udemy
© 5G NR: Radio Access Networks

8. Service Data Adaptation Protocol
PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
User Plane Protocol Stack
QoS
UE gNodeB

9. Service Data Unit(SDU) and Protocol Data Unit (PDU)
SDU
H
Layer N
PDU
Layer N-1
SDU
H
Layer N+1 SDAP
PDCP PDU
RLC
PDCP SDU
SDAP PDU
@ Udem
PDC
y
P
© 5G NR: Radio Access Networks

10. Radio
Bearer
2
Radio
Bearer
1
Example
User Plane Protocol Stack
Transport Block Transport Block
PDCP SDU
IP packet IP packet IP packet
Weather App
Google Voice call
RLC SDU RLC SDU RLC
SDU RLC SDU
SDAP SDU
MAC SDU
MAC SDU MAC SDU MAC SDU
PDCP SDU
UE gNodeB
SDAP© 5G N
SDAR
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PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
: RadioSD
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SDAP S
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DU
etworks

11. © 5GC
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Ktworks
@ Udemy

12. Non-access Stratum (NAS)
NAS
Control Plane Protocol Stack
Authentication,
UE AMF
gNodeB
Security,
@ Udemy
NAS
RRC © 5G N
RR
R
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PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
: Radio Access NIe
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13. Radio Resource Control
NAS
Control Plane Protocol Stack
Radio Bearers,
Measurement configuration
UE AMF
gNodeB
@ Udemy
NAS
RRC © 5G N
RR
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PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
: Radio Access N
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14. Summary
MAC
RLC
PHY
NAS
MAC
RLC
PDCP
PHY
NAS
PDCP PDCP
RLC RLC
MAC MAC
PHY PHY
User Plane Protocol Stack Control Plane Protocol Stack
@ Ud
PDe
CP my
UE gNodeB UE AMF
gNodeB
SDAP© 5G N
SDR
AP : Radio A
RRc
C cess NR
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RCtworks

15. THANK
@
YOU
Udemy
© 5G NR: Radio Access Networks