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4G to 5G: How Will It Happen?
Remus TanSenior Advisor, Mobility Networks and Architectures (CTO Office – Asia Pacific)e1: [email protected]: [email protected]: +65 9639.7989 | m2: +886 970.265.322
18th September 2017
Version 1.5
Spectrum Futures 2017
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4G to 5G: Significant Network Evolution is Expected in 5G NetworksTransformation Towards a Software & Service Centric Architecture
Call Flows orProcedures Centric
ServicesCentric
Bandwidth Pipe
Service EnablerPlatform
n x LTE Carriers
Mobile Phones Things
DedicatedHardware
Orchestration ofResources
Virtualized Network Functions Network Functions
Physical Network Network Slice
Protocols
ApplicationProgrammingInterfaces
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Rel-14
Rel-15
Rel-16
TSG#73 TSG#74 TSG#75 TSG#76 TSG#77 TSG#78 TSG#79 TSG#80 TSG#81 TSG#82 TSG#83 TSG#84 TSG#85 TSG#86 TSG#87
Stage 2 Stage 3 ASN.1
Stage 1 Stage 2 Stage 3 ASN.1
Stage 1 Stage 2 Stage 3 ASN.1
5G Phase 1
5G Phase 2
09.16 12.16 03.17 06.17 09.17 12.17 03.18 06.18 09.18 12.18 03.19 06.19 09.19 12.19 03.20
• Rel-14 freezing (completion of ALL items) at TSG#76• Some aspects continue (e.g. testing, legal intercept) but expected to conclude by 12.17
• Rel-15• Stage 1 freeze at TSG#76• Underway: Stage 2 5G Work on architecture, security, charging, management in SA, studies on 5G aspects of protocols,
end-to-end aspects in CT, studies on RAN aspects
5G Spectrum &Use Cases
RAN Centralization & RAN Virtualization
Control/User Plane Split in RAN & Core
Deterministic Networking in 5G
End-to-End Network Slicing
Network Virtualization
4G to 5G: Schedule and Key Aspects3GPP Standardization Status Overview and the Key Aspects of 5G Networks
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4G to 5G: Standards vs Open Sources (Part One) Key Standards Development Organizations and Forums Chartering the Path for 5G and Future Networks
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4G to 5G: Standards vs Open Sources (Part Two) Linux Foundation Unified Open Networking & Orchestration Architecture
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4G to 5G: Realization of ETSI Multi-Access Edge Compute (MEC) Architecture Real Time Payloads Processing Network Data Analytics & Continuous Control
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E2E Carrier Ethernet Services with 5G NR as Last Mile Access for Branch Office A
4G to 5G: Fixed 5G Services (Pre-5G) with mmWave SpectrumFixed Wireless Internet Access (FWIA) & Wireless Carrier Ethernet Services (W-CES) Made Possible with 5G NR (Standardization-in-Progress)
5G NRCloud RAN
5G NR Fronthaul
Carrier Ethernet
5G NR Radio
Interface
Branch Office A
Headquarters
Fixed Wireless Internet Access (FWIA) for Home A
5G NRCloud RAN
5G NR Fronthaul IP Network
5G NR Radio
Interface
Home A InternetExchange
For Both Scenarios:• 5G NR Cloud RAN does not
connect back to a 5G Next-Gen Core User Plane Function (UPF). They connect directly into a Fixed Line Services Network
• Such Fixed Line Equivalent Services are made possible due to a high amount of available spectrum in the Above 6GHz spectrum
• Leverages 5G NR PDUcapabilities (e.g. Ethernet, IPv4/IPv6 and Non-IP)
• Service Data Flow QoS is now fully accessible in the RAN due to the new SDAP sublayer introduced in the 5G NR RAN Stack
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4G to 5G: Mobile 5G Services with Sub-6GHz SpectrumSignificant Focus on Low Latency and High Reliability Communications Network to Deliver Mission Critical 5G Services
Smart Cities(Massive Machine-Type
Communications)Both IP-based &
Non-IP based
Mobile Broadband(Enhanced MBB)
Cellular V2X(Ultra-Reliable Low
Latency Communications)
Drone Operations(Ultra-Reliable Low
Latency Communications)
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Fiber TransportOptimal Wireless (60 GHz)Backhaul Route
60 GHz Multi-Hop Wireless Mesh Self-Backhaul Concept
Macro Cell
Pole Mount Node
4G to 5G: Mobile 5G Services with Sub-6GHz SpectrumAchieving Cell Densification with Multi-Hop Wireless Mesh Self-Backhaul Technologies
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Small Cell
Devices with Multi-Access
Radio
Devices with Multi-Access
Radio
Small Cell
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4G to 5G: Control/User Plane Split in RAN & CoreFuture State Architecture for 5G NR RAN, 5G Next Gen Core and 5G Transport
Centralized Master Controller
RANCU-CP
TransportController
NG CoreCP
RANCU-DP
TransportUP
NG CoreUP
Edge Compute
Data Center Site
Edge Compute
Data Center Site
Regional Data
Center Site
Regional Data
Center Site
Regional Data
Center Site
RANDU-CP
RANDU-DP
DU Site or with
Radiohead
RadioheadCP/DP
Co-located
CP/DP typically not co-located
CP/UP typically not co-located
CP/UP typically not co-located
Open Interfaces
DU: 5G NR Distributed UnitCU: 5G NR Centralized UnitCP: Control PlaneDP: Data PlaneUP: User Plane
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UserPlane
Control Plane
UserPlane
Control Plane
Control Plane
UserPlane
4G to 5G: Deployment Architecture of 5G NR and Co-existence with LTE5G NR Non-Standalone (NSA) Mode vs 5G NR Standalone (SA) Mode
LTE EPC 5G NGC
LTEeNodeB
5G NRgNB
5G NR Devices
5G Non-Standalone (NSA) ModeLTE Assisted & EPC Connected
Control Plane
UserPlane
LTE EPC 5G NGC
eLTEeNodeB
5G NRgNB
5G NR Devices
5G Standalone (SA) ModeNGC Connected with Enhanced
eNodeB
Legend:NGC: Next Generation CoregNB: 5G NodeBeLTE: Evolved LTE
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(5G NR NSA) (5G NR SA)C-RAN with RAN Virtualization, Flexible Function Splits and CP/UP Separation
C-RAN and RAN ProtocolSplit with CPRI/RoE (LTE)
RF(Antenna)
MAC
RLC
PDCP
TransportRRC
S1-U
L1(PHY)
IEEE 1914.3RoE MappingCPRI
S1-MME
RRH
BBUPNF
RF(Antenna)
L1(Low PHY)
MAC
RLC
PDCP
TransportRRC
S1
L1(High PHY)
EtherneteCPRI
VNF1+
PNF
RF(Antenna)
L1(Low PHY)
MAC
RLC
PDCP
SDAP(New) RRC
NG3
L1(High PHY)
EtherneteCPRI
VNF1+
PNF
VNF2
S1-MME
Trans port
NG2
PDCP
Transport
VNF3
RRH RRH
3GPP F1 (Eth)
4G to 5G: Realization of RAN Virtualization & Network Slicing in 5G NR
Wide Subcarrier (eMBB)
Narrow Subcarrier (mMTC)
Large CP (Broadcast)
Radio spectrum sliced based on use case
5G NR Spectrum Slicing(Resources Abstraction)
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LegendDAN: Data Aware NetworkingNDO: Named Data Objects
Moving from a Network-CentricPacket Transport Protocol (e.g. IP) towards aHost-Centric (Information-Centric) Protocol
4G to 5G: What Next Generation Networks Really MeansNext Generation Protocol Recommendations for Future Networks: ITU-T SG-13 Y.3071 Data Aware Networking (Information Centric Networking)
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Thank You
Questions:(e) [email protected] | (m1) +65 9639.7989 | (m2) +886 970.265.322