axerra networks solutions for mobile backhaul. 2 - © 2009 axerra networks®. all rights reserved....
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2 - © 2009 Axerra Networks®. All rights reserved.
About Axerra Networks
Founded in 1999
Global provider of SERVICE CONVERGENCE solutions over packet transport
– A leading vendor of multiservice pseudowire solutions
– Active standard bodies participants and influencer
– Field proven with live deployments
Award winning products
Offices around the world
– Israel (HQ), EMEA, Russia (incl. CIS), USA,APAC (Hong Kong, Singapore)
Financed by strong investors
– Carmel Ventures
– TLcom
– HarbourVest
3 - © 2009 Axerra Networks®. All rights reserved.
Mobile Backhaul - Key Market Trends Enhanced user experience demands higher-speed data rates
– HSPA – the “killer application” for mobile backhaul – Flat rate
Installed Worldwide cell site connections will grow from 3M in 2008 to 4.2M in 2011
– The vast majority of today installed cell sites are T1/E1 based
– Many of the cell sites can’t be upgraded to Ethernet
– Ethernet to the cell site will be required in order to support future NodeB / eNB (LTE)
4G (LTE, WiMax) technology standardization is in final stage of the approval process
– Will take 3-4 years until mass deployment
– Many operators will use PW as IP solution until LTE availability in order to skip one hardware upgrade phase
Access is definitely the bandwidth bottleneck
– PDH/TDM is not a scalable solution
Backhaul networks migrating to Ethernet
– The mobile RAN is migrating fromTDM and ATM to IP/ETH
“All IP” RAN evolution will happengradually and not in one step
– 2G/3G Base Stations will co-exist fora long time with 3G taking over gradually
– Base Stations with TDM/ATM I/Fswill stay for at last 3~5 years
Source: Infonetics Research Mobile Backhaul Equipment,Installed Base & Services, October 2008
Worldwide Mobile Backhaul: Installed vs New Connections
0
1,000
2,000
3,000
4,000
5,000
CY05 CY06 CY07 CY08 CY09 CY10 CY11
Co
nn
ecti
on
s (K
)
Installed connections
New connections
4 - © 2009 Axerra Networks®. All rights reserved.
TDM Backhaul Hits the Breaking Point Ethernet Solutions for Cell Backhaul
Migration to Ethernet
Capacity requirements grow– E1/T1 costs grow linearly– Need to decouple cost and capacity– Ethernet is more efficient over any media
HSPA Base Stations come with Ethernet ports
Ethernet enables scalable, flexible, lower costper bit bandwidth to the cell site:
– Optimized for data
– Convergence
– WiMAX and 4G in general
Source: T-Mobile Europe
5 - © 2009 Axerra Networks®. All rights reserved.
Migrating to Ethernet Transport - MEF Use Cases
Hybrid RAN/HSPA Offload -Enables phased migration to
Ethernet while:Utilizing low cost and available
broadband technology fortransporting HSPA traffic
Packet offload over Carrier Ethernet (HSPA offload) Overlay Carrier Ethernet does bandwidth offloading onto Ethernet services Legacy network continues to transport voice and deliver timing/signaling Voice services are migrated onto Ethernet in a later phase
Emulation over Carrier Ethernet (legacy services over Ethernet) RAN nodes with legacy interfaces transport all traffic over Ethernet services using
emulation technologies – from Day 1
“Big Bang”
6 - © 2009 Axerra Networks®. All rights reserved.
Pseudo-Wire => the Packet-based RAN Migration Enabler
For the next few years the vast majority of cell site connections will be based on T1/E1 interfaces
About 1/3 of overall cell sites are collocated 2G/3G sites Growing demand for Ethernet connectivity to high capacity cell sites
– The amount of bandwidth per cell site is estimated to grow by 3x to 4x over time
– New 3G and 4G NodeB will use Ethernet interfaces
Most additions of 3G cell sites will take place in existing 2G cell sites
– Operators use existing foot print of 2G cell sites
All traffic originating from the cell site will be carried over Ethernet using PWE3 gear
Use PWE3 gear to servecollocated 2G/3G sites
Use PWE3 gear withadvanced functionality
(Ethernet Link/Services OA&M and PM)
PWE3 CPE will become anEthernet Demarcation Device
7 - © 2009 Axerra Networks®. All rights reserved.
Widespread Agreement on theNeed for Pseudo-Wires (PW)
Major operators are deploying PW solutions at the cell site andit plays an important role in the evolution of mobile backhaul networks to IP/Ethernet
– Some of the operators that announced PW deployment in 2007: T-Mobile, Telecom Italia, Swisscom, Taiwan Mobile, and eMobile (Japan)
– Standardisation is almost accomplished, including 1588-2008Precision Time Protocol
– For most carriers it’s not a question of “if” but a question of “where”and “when”
BTSBSC
Carrier EthernetRAN
Emulated TDM/ ATM/HDLC PW Service
ETHETH
TDME1
IPETH
R5/LTE/
WiMax
PWE3 Cell Site Device PWE3
GatewayG.823/824/8261 Compliant
Clock
ATM RNC
aGW
ATM/IMA
NodeB
8 - © 2009 Axerra Networks®. All rights reserved.
PW OAM
UNI
Ethernet Service OAM
CECE PE
UNIAC AC
PEPSN Tunnel
Eth Link OAM Eth Link OAM
Subscriber Interface
OAM
Network Interface
OAM
Subscriber Interface
OAM
Network Interface
OAM
Ethernet Link OA&M: Discovery,Link Monitoring, Remote Failure Indication,and Loopback
PWE3 CPE Will Become an Ethernet Demarcation DeviceMonitoring SLA Over 3rd Party Transport Networks
PWE3GW
PWE3Access Device
Ethernet demarcation features enable:
– End to End Service Level Assurance Ethernet QoS
– Investment protection PWE3 CPE of today will evolve to Ethernet Demarcation Device
– Lower total cost of ownership Fewer devices in the Cell Tower
9 - © 2009 Axerra Networks®. All rights reserved.
Highlights of Key Trends in Mobile Backhaul
Migration to IP/MPLS backhaul networks is inevitable
– Drivers are RAN capacity growth, IP base stations and service evolution
Immediate OpEx savings and short ROI
– Carriers will deploy Ethernet for 3G and 4G backhaul to realize significant cost advantages and close the gap between mobile revenue and expense
Investment protection
– Shifting to Ethernet Assurance and added value features…
RAN Evolution versus Revolution
– 2G/3G Base Stations are collocated and will co-exist for a long timewith 3G taking over gradually
– Migration to All IP RAN will happen gradually and not in one step
PW Mobile Backhaul solutions are picking up, becoming mainstream
– Pseudo-Wire is the Packet-based RAN Migration Enabler
– Field-proven with large deployments
PW Mobile Backhaul Solutions Available Today..for 2G, 3G, and Beyond
PW Mobile Backhaul over ANY packet transport network
10 - © 2009 Axerra Networks®. All rights reserved.
Typical 2G/3G RAN Backhaul Architecture
Both 2G TDM and 3G ATM traffic are backhauled over TDM leased lines
Radio Access Network
Leased lines for backhaul today account for 20%-40%of Mobile Operators’ Operational Expenses (OpEx)
BTS
NodeB
Abis
E1/T1
RNC
Iu
ATM/IMA, n x E1/T1
BSC
A
ATMSwitch
STM-1 ATM
TDM Leased Lines
DXC
E1/ T1/ChSTM-1
E1/T1 ChSTM-1
E1/ T1/ChSTM-1
Iub
Abis
Iub
11 - © 2009 Axerra Networks®. All rights reserved.
Key Requirements of Ethernet-based Backhaul
Meeting clocking/synchronization requirements
– Compliant with G.823/824/8261
Low end-to-end delay must be maintained
Ethernet Service and Link OAM & PM
High Availability
Ensuring QoS of different traffic types
– Voice, data, video, signaling, management, etc.
Traffic Optimization (TDM grooming, ATM aggregation, encapsulation overhead reduction)
12 - © 2009 Axerra Networks®. All rights reserved.
GSM/UMTS Backhaul over PSN
Supports all generations (GSM, EDGE, UMTS and HSPA) of mobile voice and data, also WiMax and WiFi and even Enterprise Services
Preserves native features and signaling across packet networks
Meets strict clock synchronization requirements through Axerra’sHigh-Precision Clock Recovery (HPCR®)
– As specified in ETSI TS 125 402 or 3GPP TS25.104
Ensures QoS of different traffic types such as voice, data, signaling, management, etc.
Eliminates the need for expensive ATM switch
RNC
BTS
ETH Carrier Ethernet/
MPLS
AXN10 PWE3 CPE
E1/T1Abis
Iub
STM-1 ATM
AXN PWE3 Gateway
E1/T1/STM-1
AbisETH
Iub - ATM Pseudo-Wire
Abis - CES Pseudo-Wire
PSN TunnelBSC
NodeBIubnxE1/T1 IM
A
ETHWiMaxWiFi
13 - © 2009 Axerra Networks®. All rights reserved.
HPCR® –High Precision Clock Recovery ±15 PPB
Complies with ITU-T G.823, G.824, G.8261
Designed to meet the clock synchronization requirements as specified in ETSI EN 300 912 and TS 125 402 “Synchronization in UTRAN stage 2."
Tested and approved by major mobile equipment vendors
BTS/NodeB
AXN10 PWE3CPE
E1/T1sE1/T1/STM-1
AXN Gateway BSC/RNC
G.823/824/8261 Compliant Clock
High accuracy Primary Reference Source (PRS) clock
Synchronization InformationHPCR
Carrier Ethernet/
MPLS
14 - © 2009 Axerra Networks®. All rights reserved.
Backhaul from Cell Site - HSPA Offload
The Hybrid approach:– R99 voice/data and signaling remain on traditional TDM leased lines
– HSPA data traffic runs on Ethernet network – possibly ADSL Enables phased migration to Ethernet while:
– Utilizing low-cost and available broadband technology for transporting HSDPA traffic
– Lower quality Ethernet network needed
– HPCR not needed: sync via SDH – same as today
– Lower cost savings, but possibly easier deployment
NodeB
1-2xT1/E1 for R99 Voice/Signalling
HSDPA
AXN10PWE3
STM-1 ATM
AXN PWE3 Gateway
DSL + Ethernet or IP or ATM
SDH/Leased Lines
ADSL
E1s/Ch STM-1
Emulated ATM Circuits
ETH/ATMETH
T1/E1
ATM Switch
2G BTS BSC
RNC
E1s/Ch STM-1
15 - © 2009 Axerra Networks®. All rights reserved.
Backhaul From Aggregation/Hubbing PoP
The majority of cells will use TDM access for many years
– About 75% of cells in 2009 will still be connected over Microwave and PDH/SDH
Today Tier 2 backhaul is done mainly with SONET/SDH but Ethernet/MPLS will follow to the Aggregation PoPs
Carrier Ethernet and MPLS will be available in Aggregation PoPs much earlier than in the cells
Wireline and Wireless network unification plays a major factor
Provides major OpEx saving
Extends grooming to hub sites - 3/1/0 and VPI/VCI
Emulated TDM/ATM Circuits
Carrier Ethernet/ IP/ MPLSTransport
nxE1/T1s PDH MW
BTS/NodeB
ETHBTS/
NodeB
Hubbing Site
ETH
nxSTM-1 ATMAXN
Gateway
nxCh. STM-1
RNC
BSC
STM-1 ATMBTS/NodeB
PmP
Central Site (CO)
LL
16 - © 2009 Axerra Networks®. All rights reserved.
Multiple Services – One Solution
Ethernet
Service AXN
MSC
AXN
BSC
RNC
RNC
3G
BTST1/E1
ATMFR/HDLC
Ethernet
TDM
ATM/FR/HDLC
GigE
Pseudo-Wire Tunnel
Axerra Service Supported Service Cell Site Interface MSC Interface Benefit
CES Pseudo-Wire AMPS, GSM, CDMA TDM: T1/E1, DS3/E3, OC3/STM-1
TDM: T1/E1, DS3/E3, OC3/STM-1,
B/W gains from DS0 grooming
ATM Pseudo-Wire UMTS, HSDPA ATM & ATM IMA: T1/E1, DS3/E3, OC3/STM-1
ATM: T1/E1, DS3/E3, OC3/STM-1
Stat-mux gains
No ATM switch needed in CO
HDLC Pseudo-Wire 1xRTT, EVDO HDLC: T1/E1, DS3/E3 HDLC: T1/E1, DS3/E3, OC3/STM-1
Stat-mux gains
HDLC data interface
FR Pseudo-Wire iDEN FR: T1/E1, DS3/E3 FR: T1/E1, DS3/E3, OC3/STM-1
Stat-mux gains
FR data interface
Ethernet switching EVDO, WiMAX, 4G Ethernet: FE Ethernet: GigE No need for TDM interface on router
Cell Site
Multiprotocol
Pseudo-WiresWiMAX
EVDOEthernet
17 - © 2009 Axerra Networks®. All rights reserved.
Axerra’s Complete Product FamilyAXN Product Portfolio of Access Devices and Gateways
Scalable family of platforms– 1 to 1000 E1/T1 capacity– Carrier Class Reliability
Multiservice Pseudo-Wire– CES + Layer 2 Pseudo-Wire
Pseudo-Wire flexibility– Axerra-owned code – Software-based architecture – 5 patents + 1 pending
Point-and-Click provisioning
Performance Monitoring
Comprehensive Fault Management
Standards-based
Location
Capacity
AXN800
AXN1
AXN1600N
CPE/Cell Site MTU PoP/CO
AXN10
1000E1/T1
1 E1/T1
AXNVision
18 - © 2009 Axerra Networks®. All rights reserved.
Axerra’s Unique Value Proposition
Single and robust platform supporting both Mobile Backhaul
and Business Service Delivery
– Best-of-Breed Pseudo-Wire industry leader and solution provider
– Enable leased line replacement such as PBX backhaul and converging
legacy services over PSN covering private line, FR, ATM, and HDLC
services
– Multiple Services – One Solution
Beyond Circuit Emulation – variety of Layer-2 Pseudo-Wire services
Scalable solution with modular and flexible platform
Supports all generations of mobile & business services
Robust and accurate adaptive clock recovery mechanism
Strong momentum with world class OEM and SI partners
Field proven