2. Outline
SD-RAN
2
• 5G - Tom Tofigh
• What is it?
• Use Cases
• SD-RAN - Oğuz Sunay
• SD in RAN: Two planes of networking
• Disaggregation in the RAN
• Programmability of the RAN
• Slicing of the RAN
• SD-RAN in M-CORD - Tom Tofigh
4. 5G
What is it?
4
1. Inclusion of vertical sectors that haven’t been included in 4G
2. Offering new use experience ( AR/VR , battery life , M2M, 4K video )
3. Provides for new types of connectivity services
4. Provides for autonomous operational Flexibility (performance, latency
scale, security, reliability, and programmability)
5. Performs frequent “load balance control” across hyper densified set of
macro, small and micro cells so far.
6. Technology Drivers
For 5G
6
Massive MIMO mmWave Multi RAT Wireless Networks
Dramatically increased
number of antenna
elements on
base stations enabling
beamforming
Utilize potential of
extremely wide bandwidths
at frequency ranges once
thought impractical for
commercial wireless
Improve bandwidth
utilization through evolving
PHY and flexible
numerology
Consistent connectivity
meeting the 1000x traffic
demand for 5G
• Densification
• SDN
• NFV
• C-RAN
7. 5G Enablers
Technology Pillarss
7
NEW AIR INTERFACE(S)
NETWORK FUNCTIONS VIRTUALIZATION
NETWORK SLICING
MORE SPECTRUM
SOFTWARE-DEFINED NETWORKS
CLOUD TECHNOLOGIES
MOBILE EDGE COMPUTING
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8
FUNCTIONAL DISAGGREGATION k
8. 5G Spectra
Driving the 5G Use Cases
8
• FCC Allocated 4 Bands for 5G: 28 GHz, 39 GHz, 37 GHz, 65 GHz
• Mobile rights to existing LMDS and 39 MHz licensees
• Spectrum aggregation limit of 1.25 GHz
• Federal, FS, FSS Spectrum Sharing
• Rules went into effect December 14, 2016 –Paving way for 5G commercial service
9. 5G Radio Access
RAN Evolution Towards NR
9
• Evolution of existing technology + NR
• Rapid switching based on radio condition
• Gradual migration of NR into existing spectrum
• Flexible connections for multiple services
10. 5G Use Cases
New Vertical Sectors to be Supported
10
Enhanced Mobile Broadband
Massive Machine Type
Communications
Ultra-reliable, Low-Latency
Communications
Source: Recommendation ITU-R M.2083 “IMT Vision - Framework and overall
objectives of the future development of IMT for 2020 and beyond”
12. M-CORD
Mobile CORD Platform Pillars
12
SDN NFV
CLOUD
CORD
• M-CORD:
• Disaggregated, virtualized EPC running on
(distributed) access cloud over programmable
VN/fabric
• Programmable RAN configured by ONOS
GOAL: Programmable/configurable RAN with
disaggregated functions selectively running
on distributed access cloud
14. Two Planes of Networking
Formal Definition
14
Control PlaneData Plane
Computer Networks Definition
Forwarding packets based on local
forwarding state
Computing that forwarding plane taking
into account the rest of the system
Control PlaneUser Plane
Wireless Networks Definition
Flows that bear the “content”
information regarding a mobile user
application
Flows that bear the “signaling”
information to ensure mobility, session,
authentication and subscription
management,
15. Two Planes of Networking in the RAN
Formal Definition
15
Control PlaneData Plane
Computer Networks Definition
Forwarding packets - for both 3GPP
User Plane and 3GPP Control Plane -
based on local forwarding state
Computing that forwarding plane using D/L &
U/L Scheduling, Handoff, Admission Control,
Link Aggregation Policy, SON Policy
Control PlaneUser Plane
3GPP Definition
UE: PDCP-u, RLC-u, MAC-u, PHY-u
eNB: PDCP-u, RLC-u, MAC-u, PHY-u
UE: NAS, RRC, PDCP-c, RLC-c, MAC-c, PHY-c
eNB: RRC, PDCP-c, RLC-c, MAC-c, PHY-c
16. RRC PDUs
PDCP Control
RLC Control
MAC Control
PHY Configuration
and
Measurement
RRC
PDCP
RLC
MAC
PHY
16
Link Aggregation
Downlink Scheduling Uplink Scheduling
Handoff Management Admission Control
ONOS SD-RAN Controller
Two Planes of Networking in the RAN
SDN Control Plane
24. 24
RAN Disaggregation
C-RAN/vRAN: Horizontal Disaggregation
Low
RRC
PDCP
High RLC
Low RLC
High MAC
Low MAC
High PHY
Low PHY
Radio
High
Complexity &
Performance
Option 1
Option 2
Option 3
Option 4
Option 5
Option 6
Option 7
Option 8
CU
DU
25. 25
Further Disaggregation
CUPS + Functional Disaggregation
RRC
PDCP
High RLC
Low RLC
High MAC
Low MAC
High PHY
Low PHY
Radio
User Plane
Power Control
SDR Control
Antenna Configuration
Admission Control
Measurement Reporting
AMC Control
Bearer Control
Scheduling Control
System Broadcast
SON Control
DC Control
CA/LA Control
Handover Control
Paging Control
MLB Control
ICIC Control CN Control Interface
CN User Interface
RAN Slicing Control
Control Plane
Frame Control
26. 26
Support for RAN Slicing
CUPS + Functional Disaggregation
RRC
PDCP
High RLC
Low RLC
High MAC
Low MAC
High PHY
Low PHY
Radio
User Plane
Power Control
SDR Control
Antenna Configuration
Admission Control
Measurement Reporting
AMC Control
Bearer Control
Scheduling Control
System Broadcast
SON Control
DC Control
CA/LA Control
Handover Control
Paging Control
MLB Control
ICIC Control CN Control Interface
CN User Interface
RAN Slicing Control
Control Plane
Frame Control
Slow Scheduling Control
Fast Scheduling Control
RB Mapping Control
27. 27
Management & Analytics
Programmability / Configuration in the RAN
RRC
PDCP
High RLC
Low RLC
High MAC
Low MAC
High PHY
Low PHY
Radio
Power Control
SDR Control
Antenna Configuration
Admission Control
Measurement Reporting
AMC Control
Bearer Control
Scheduling Control
System Broadcast
SON Control
DC Control
CA/LA Control
Handover Control
Paging Control
MLB Control
ICIC Control CN Control Interface
CN User Interface
RAN Slicing Control
Management&Analytics
User Plane Control Plane
Frame Control
28. 28
RAN Orchestration
Tying with Overall Network Orchestration
Frame Control
RRC
PDCP
High RLC
Low RLC
High MAC
Low MAC
High PHY
Low PHY
Radio
Power Control
SDR Control
Antenna Configuration
Admission Control
Measurement Reporting
AMC Control
Bearer Control
Scheduling Control
System Broadcast
SON Control
DC Control
CA/LA Control
Handover Control
Paging Control
MLB Control
ICIC Control CN Control Interface
CN User Interface
RAN Slicing Control
Management&Analytics
RAN Control & Orchestration