4G Backhaul
Willy Sabry
Alcatel-Lucent Indonesia
General Concepts
Mobile Backhaul and Mobile Backbone
4G:
All-IP, MIMO, OFDM
>100 MBps, QoE
eNode B
TDM
Backhaul
Node B
MTSO
NSS
CO
POP
EPC
Backbone
(inner & inter city)
MTSO
NSS
CO
POP
EPC
BTS
- Base Stations
- Mobile Switching Centers
(MSCs)
(BTS, Node Bs, eNB…)
- SGSNs, GGSNs
-- Base Station Controllers
(BSC, RNCs)
-EPC
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4G LTE
Delivering bandwidth & QoE
2G/3G
2G/3G
 Low-speed, no QoS, best effort browsing and SMS
 Limited number of business models:
 POMS (plain old mobile service)
 Blackberry (enterprise-driven, E-mail)
 iPhone (operator-locked app domain)
4G/LTE
 Millions of multi-Mbps flows
 End-to-end guaranteed QoS
 Network-wide and global policy enforcement
 Allow operators to make $en$e of Web 2.0
 Wireless broadband
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Reference Architecture
Backhaul: Aggregation and Access
ACCESS & AGGREGATION
BTS
Node B
IP-BTS
WiMax
Hubs
ACCESS & AGGREGATION
BACKBONE
(urban, sub-urban and rural)
(urban, sub-urban and rural)
(inner/inter city)
EPC
Backbone
(inner & inter city)
EPC
Hubs
Enterprise
Enterprise
Subs
RAN
Backhaul
Access: MW or FO
MW
FTTN
GPON
IP/MPLS
Core Network
Backhaul
Aggregation:
FO
IP/MPLS
Backbone: FO
IP/MPLS Core
Over ROADM
PTN
(over DWDM)
PTN
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RAN
Subs
Backhaul Model
Mobile Service Provider: End to End backhaul by the Operator
Backhaul Transport Provider: Physical L2 transport by third party
ACCESS & AGGREGATION
BTS
Node B
IP-BTS
WiMax
Hubs
ACCESS & AGGREGATION
BACKBONE
(urban, sub-urban and rural)
(urban, sub-urban and rural)
(inner/inter city)
EPC
Backbone
(inner & inter city)
EPC
Hubs
Enterprise
Enterprise
Subs
RAN
Core Network
Backhaul
Access
Backhaul
Aggregation
Open
Network
Packet
Open Network
Packet
Access
(L2)
Aggregation
(L2)
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RAN
Subs
Capacity
Aggregation: IP/MPLS and ROADM @ 10 GBps and 100GBps
Access: FO @ 100 – 1000 MBps and or MW: @ 150 – 1000 MBps
ACCESS & AGGREGATION
BTS
Node B
IP-BTS
WiMax
ACCESS & AGGREGATION
BACKBONE
(urban, sub-urban and rural)
(urban, sub-urban and rural)
(inner/inter city)
Hubs
EPC
Backbone
(inner & inter city)
EPC
Hubs
Enterprise
Enterprise
Subs
RAN
Core Network
Backhaul
Access
Backhaul
Aggregation
FO: 1Gbps
NX10 GBps
MW: 150-300
MBps – 1.2
GBps
NX100 GBps
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RAN
Subs
IP Mobile Backhaul Evolution
9500 MPR - IP MW
Converged RAN
Metro & Aggregation
IP/MPLS
BS
7450ESS
Hybrid MW
Hybrid MW
BSC
2G&3G
SDH
BS
Hybrid MW
MUX
3G
IP/MPLS
9500 MPR
9500 MPR
2G&3G
RNC
BSC
7750SR
EPC
3G
9500 MPR
NMS
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7450 ESS
2G/3G/4G M-Core
2G&3G
MUX
Converged
Metro & Aggregation
Converged RAN
What is
the future?
7750SR
2G M-Core
Where are
we today?
2G&3G
3G M-Core
RNC
9500 MPR – Full IP Microwave
Overview
Frequency Range
6 GHz to 38 GHz, 80 Ghz
Modulation schemes
4 QAM /16 QAM /32 QAM /64 QAM /128 QAM /256 QAM
Interfaces
10/100/1000 Ethernet, E1, ATM
Throughput
Up to 350 Mb/s per radio carrier
Channel Spacing
7 MHz, 14 MHz, 28 MHz, 56 Mhz
Configurations
1+0, 1+1 HSB, Frequency Diversity, Space Diversity,
Nodal configurations up to 6 radio paths per shelf
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9500 MPR – Full IP Microwave
Microwave @ millimetre wave
Functionalities
Radio
 Max Throughput – 1.2 Gbps
 Spectrum Utilization – 2 options:
 250 MHz
 1,000 MHz
 Band 80 GHz
 Flexible RF channel tuning
SDH/Ethernet Native Transport
Advanced QoS
Per port rate limiting
Adaptive Rate & Modulation
(ARM)
 Synch-E




Operates as:
ODU
Stand-alone solution
Connected to MSS for connectivity
flexibility an nodal solutions
MSS-8/-4
9 | 9500 MPR — R2 - ETSI | April 2010
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9500 MPR – Full IP Microwave
Microwave @ 80 GHz – millimetre wave
Channel tuning in accordance with ECC REC 05/07
Aggregate channels for
higher data capacity
1,2
1,2
1,2
1,2
250 MHz Channels
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9500 MPR – Full IP Microwave
Adaptive Rate Modulation (ARM)
Gradual Rate decrease

1200Mbps QPSK 1000MHz,

600Mbps BPSK 1000MHz

240Mbps QPSK 250MHz

120Mbps BPSK 250MHz
Simultaneous Modulation and Rate change
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Selected data points from “How Far Can you Go?”
Microwave maximum bandwidth vs. reach and service availability
("average" climate)
Bandwidth (Mb/s)
1200
1000
800
99.99% SA
600
99.999% SA
400
200
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
Distance (km)
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