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Представление решений RAD для присоединения базовых станций сотовой связи.
Cellular Backhauling Solutions for TS2009 Slide 2
Agenda
• Cellular Backhauling introduction
• Applications
• Main features
• Summary
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 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 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