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Cellular Backhauling Solutions for TS2009 Slide 2
Agenda
• Cellular Backhauling introduction
• Applications
• Main features
• Summary
Cellular Backhauling Solutions for TS2009 Slide 3
Cellular Backhauling Solutions for TS2009 Slide 4
The Mobile Backhaul Segment
Access Network
Regional Backbone
BSC/RNC/aGW
National Backbone
MSC
BTS/NodeB/
IP-NodeB/eNB
Cellular BackhaulACE-3000 Family
Mobile backhaul encompasses the transport networkbetween cell sites (base stations) and associatedcontroller or gateway sites.
Cellular Backhauling Solutions for TS2009 Slide 5
Mobile Backhaul Challenges
Evolution of the 3.5G HDPA+ and 4G LTE Broadband data services introduce new challenges to the mobile backhaul
400 Mbps
2009 2010 2011
100 Mbps
70 Mbps
2012
Capacity/Latency
HSPA, PH2
(Rel-6)
LTERel-9
LTERel-10
40msec
10msec
Latency
Capacity
HSPA, PH3
(Rel-7)
HSPA, (Rel-8)
LTERel-8 HSPA,
(Rel-9)
Cellular Backhauling Solutions for TS2009 Slide 6
Smooth Mobile Backhaul Evolution
Aggregation SiteGatewayCell Site/Hub Site
Gateway
aGW/RNC/BSC
BTS/Node B/eNB
SONET/SDH/ATM
Tra
dition
al
Cell Site/Hub SiteGateway
aGW/RNC/BSC
BTS/Node B/eNB
Hyb
rid
Aggregation SiteGateway
SONET/SDH/ATM
Pa
cket
Aggregation SiteGatewayCell Site/Hub Site
Gateway
aGW/RNC/BSC
BTS/Node B/eNB
Cellular Backhauling Solutions for TS2009 Slide 7
Go To Market Definitions
• Target Customers
• Mobile operators
• Owning their own backhaul infrastructure
• Leasing backhaul services
• Transport providers
• providing backhaul transport service to mobile operators
• Main Target Applications
• 2G and 3G services over ATM backhaul
• 2G/3G and 4G services over PSN backhaul
• Microwave backhauling from the Hub Site
• Backhauling over any media -- Copper, Fiber or Microwave
• Value Proposition
• Decoupling capacity from cost – reduce backhauling cost per Mbps
• Resolve the backhaul bottleneck
• Step by step migration toward all-IP
• Transparent backhauling of GSM/UMTS/Wimax and LTE over packet based network
Cellular Backhauling Solutions for TS2009 Slide 8
ACE-3x00 Cellular Backhauling Network Architecture
BTS/Node BIP Node-B
or eNB
BTS/Node BIP-Nonde B/eNB
BTS/Node BIP-Nonde B/eNB
First mile Backhauling
Segment
First mile Backhauling
Segment
Cell Site Hub Site Aggregation Site
BSC/RNC/IP RNC/aGW
ACE-32xxACE-310x
LA-130 ACE-340x
ACE-340xACE-3600
3rd party solution
Middle mile Backhauling
Segment
Middle mile Backhauling
Segment
BTS/Node BIP-Node-B/eNB
Cellular Backhauling Solutions for TS2009 Slide 9
Market Trend: Cellular Operators move the Tradtional RAN to IP-RAN, Why?
• Backhaul of BSS/UTRAN is one of the major contributors to the
high cost of building out and running a mobile network.
• Cellular operators have massive deployment of PDH/SDH traffic,
most reliable solution for GSM and R’99 UMTS backhaul.
• PDH/SDH Mobile Backhaul solution does not seem flexible
enough to efficiently deliver statistical/bursty traffic.
Cellular operators would like to maximize revenues and margins by converging mobile flows over a unified Packet Switched Network infrastructure in order to reduce both
Capex and Opex by using PW.
Cellular Backhauling Solutions for TS2009 Slide 10
What is PW?
• Pseudowire is a mechanism that emulates the essential attributes of a
telecommunications service over a packet-switched network
• TDM leased line, ATM or ETH
• It defines a way to packetize and encapsulate data and create a logical link
between two network entities
• Pseudowire technology is an enabler for the migration scenarios, with circuit
and service emulation of legacy services over packet networks
CLE/CPEPWE3 #1
PWE3 #2
CLE/CPE
TDMATM
HDLC, ETH etc.
Service Pseudowire Emulated Service Service
Tunnel TDMATM
HDLC, ETH etc.
PSN
Cellular Backhauling Solutions for TS2009 Slide 11
Cellular Backhauling Solutions for TS2009 Slide 12
Leveraging Cellular Backhauling Over Copper (xDSL)
Benefits:
• Using any flavor of DSL technology for cellular backhauling
• Simultaneously supports ADSL2+ for HSPA and SHDSL.bis for R99 and GSM or data services with M-pair/IMA/EFM Bonding technologies
• Full synchronization solution by using ACR or 1588v2 or NTR
• Interoperability with Cisco 76xx ASG and Cisco management system ‘ANA’
ACE-3105
63 E1/T1
BSC
GbE
RNC/IP-RNC
STM-1/OC-3c
GbEPSNETH/IP/MPLS
Network
BTS/Node B
n x E1/T1TDM/ATM
Ch. STM-1/OC-3c
GbEBTS/Node B
n x E1/T1TDM/ATM
ACE-3220Aggregation/
Hub Site Gateway
n x FE
IP-Node-B PW
ADSL2+ for HSxPA Services
n x SHDSL for R99 and GSM Data
Cellular Backhauling Solutions for TS2009 Slide 13
2G/3G/4G Cellular Backhauling Over Fiber
eNB
ACE-3220
n E1/T1 TDM
BSC
RNC
GbE
n x E1/T1TDM/ATM IMA PSN
ETH/IP/MPLSNetworkBTS/NodeB
Ch. STM-1/OC-3
n x FEn x STM-1/OC-3c
GbE
AggregationGateway
IP Node B
ASN GW
n x GbE
PW
3’rd party vendorMultiservice device
Benefits:
• Backhauling all kind of cellular BSS technologies and vendors over GbE
• Emulating TDM/ATM/ETH over ETH/IP/MPLS
• Co-location of ETH Node-B by using
• ETH PW
• Layer 2 Bridging
• Full synchronization support by using 1588v2 and Sync-E
• Interoperability with Cisco 76xx ASG and Cisco management system ‘ANA’
Cell-Site GatewayACE-3220
GbE
Cellular Backhauling Solutions for TS2009 Slide 14
Hub SiteBSC
IP RNC
GbE
2G BTS
n x E1/T1 TDM orCh. STM-1/OC-3
ETH
n x E1/T1TDM
n x E1/T1IMA
RNCSTM-1/OC-3cATM
Cell Site
AGG Site
‘1st mile’ ‘middle mile’
PW
ETH MW
BTS/Node B
PW
MW links
3G Node B
Wireless Cellular Backhaul PW over ETH MW
Benefits
• Offers smooth migration for Ethernet MW
• Full end to end OAM solution
• Co location of mixture traffic over ETH MW
GbE PSNETH/IP/MPLS
ACE-3220
3G IPNode B
FE
n x E1/T1TDM
ACE-32203’rd party vendor
Multiservice device
Cellular Backhauling Solutions for TS2009 Slide 15
Wireless Cellular Backhaul Grooming PDH MW at the Hub location
Benefits
• Smooth migration to IP/MPLS networks while using TDM MW legacy equipment
• Full end to end OAM solution
• Co location of mixture traffic over TDM MW
• Flexible Synchronization support
2G BTS
n x E1/T1TDM
n x E1/T1IMA
3G Node B
Hub SiteBSC
IP RNC
n x E1/T1 TDM orCh. STM-1/OC-3
ETH
RNCSTM-1/OC-3cATM
Cell Site
AGG Site
‘1st mile’ ‘middle mile’
PW
TDM MW
BTS/Node B
PW
MW links
63 x E1/T1or Ch. STM-1/OC-3c
3’rd party vendorMultiservice device
STM1/OC3
STM1/OC3
SONET/SDHNetwork
ACE-3400
GbEPSN
ETH/IP/MPLS
GbE
Cellular Backhauling Solutions for TS2009 Slide 16
Cellular Backhauling Solutions for TS2009 Slide 17
Smooth Migration Path
All services transport over PW
over xDSL backhaul
All services transport over Fiber backhaul
E1/T1 TDM
E1/T1 ATM
FE
ADSL2+
SHDSL.bis
ATMATM
ATM ADSL/ATM SHDSL/EFM-SHDSL
PW
ETH/IP/MPLS
IP DSLAM
GbE
GbE
PW
ETH/IP/MPLS
GbE
PSNPSN
ASG
ASG
ACE-3220
E1/T1 TDM
E1/T1 ATM
FE
ACE-3220
Cellular Backhauling Solutions for TS2009 Slide 18
Why emulate the ETH-Node over PW?
• ETH PW allows the ACE-3000 to backhaul ETH/IP traffic coming from NodeBs toward the RNC over IP/MPLS networks
• ETH PW on the ACE-3000 can be used together with TDM and ATM PW mechanisms in cases where 2G BTS and 3G Node are collocated on the same site
Benefits:
• Unified ATM/TDM/ETH services over IP/MPLS
• Automatic provisioning to all Cellular Backhaul services
• TDM/ATM/ETH OAM support over IP/MPLS networks
ETH
ETH
IP Node B
ACE-3220/3105RNC
PW (ETH,ATM,TDM)
PacketSwitched Network
n x E1/T1
ACE-3400
STM-1/OC-3c
Node B/BTSPW
(ETH,ATM,TDM)
3’rd party vendorMultiservice device
OAM
Cellular Backhauling Solutions for TS2009 Slide 19
Multiple Synchronization Options
• Synchronization via a TDM link for clock transfer
• Timing over packet:
• Adaptive clock distribution and recovery
• PTPv2 (IEEE 1588-2008) ordinary clock (master + slave)
• Synchronous Ethernet
• NTR over SHDSL
TDM
ATM IMA
TDM
ATM
2G BSC
3G RNC
ACE-3000
ACE-3220
eNodeB
ETH
ACE-3220
NodeB
SHDSL
ATM IMA
IP DSLAM
TDM link
Sync-E
NTR
FE/GbEIP Node B ETX
ETHIEEE 1588-2008
S1 (ETH)
aGWSONET/SDH
Network
PacketSwitchedNetwork
Cellular Backhauling Solutions for TS2009 Slide 20
Cellular backhaul Solutions Summary
Cellular backhauling needs and requirements:
• Higher BW
• Migration to IP/MPLS networks
• Cell Site synchronization
• Saving Mobile Backhauling cost
Leveraging Backhauling over diverse kind of infrastructure
• Copper (xDSL)
• Fiber
• Wireless
Main Features and Benefits
• High Accuracy timing
• Multiservice backhauling support
• Future proof solution (smooth migration)
• Cutting Opex and Capex
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