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Academy course:I-HSPA Operation and MaintenanceRelease 2.0System Architecture
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Nokia Siemens NetworksAcademy
Legal notice
Intellectual Property RightsAll copyrights and intellectual property rights for Nokia Siemens Networks trainingdocumentation, product documentation and slide presentation material, all of which are forthwithknown as Nokia Siemens Networks training material, are the exclusive property of NokiaSiemens Networks. Nokia Siemens Networks owns the rights to copying, modification,translation, adaptation or derivatives including any improvements or developments. NokiaSiemens Networks has the sole right to copy, distribute, amend, modify, develop, license,sublicense, sell, transfer and assign the Nokia Siemens Networks training material. Individualscan use the Nokia Siemens Networks training material for their own personal self-developmentonly, those same individuals cannot subsequently pass on that same Intellectual Property toothers without the prior written agreement of Nokia Siemens Networks. The Nokia SiemensNetworks training material cannot be used outside of an agreed Nokia Siemens Networkstraining session for development of groups without the prior written agreement of NokiaSiemens Networks.
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Document change history
Date Version Name Change comment
12 Nov 2009 1.0 R. Benson Initial version
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
Interfaces and Protocols
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I-HSPA Network Architecture
I-HSPA is a simplified network architecture based on innovative 3GPP standards.
I-HSPA system solution, handling HSPA services, enables high capacity and high bitrates optimizing for
the 3GPP operators both the network response times and the costs of Packet Switched (PS) network
From a technical perspective I-HSPA is a flat architecture: the I-HSPA RAN consists of the I-BTS
Network Element, derived from a Nokia Wideband Code Division Multiple Access (WCDMA) BTS plus
an I-HSPA Adapterimplementing the RNC functionality. Relevant WCDMA BTS generations are Flexi
and Ultrasite
The I-HSPA radio access architecture which supports standard compliant terminals offers the operators
an optimised radio interface for HSPA service
I-BTS network element is connected to the 3GPP Core Network (CN) via the 3GPP standard Iu-PS/Gn
interfaces
I-HSPA flat architecture, an evolutionary step towards LTE, utilizes the Direct Tunnel solution to
bypass the SGSN in the User plane with performance benefits (e.g. lower user plane latency)
I-HSPA uses Serving GPRS Support Node (SGSN) and Gateway GPRS Support Node (GGSN)
network elements to handle mobility
The complete solution is centrally managed and operated via OMS and the Nokia Siemens Networks
NetAct Framework which provides the operator with a suite of tools to perform network monitoring,
configuration, fine tuning, accounting and optimization functions
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I-HSPA Network ArchitectureAn Evolutionary Step towards LTE
NodeB RNC
Radio Network
I-BTS
Radio Network Core Network
Internet
SGSN
GGSN
For R99 services
eNodeB
Radio Network Core Network
Internet
eGSN-c
eGSN-u
I-HSPA
LTE
SGSN GGSN
MGW
MSC-S
Core Network
Internet
PSTN
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I-HSPA Rel-2
RNC
I-BTS
IP / Ethernet
I-BTS
SGSN
Eth
GGSN
Eth
MSS
Eth
IP /Eth
Eth
HSDPA calls supported by I-BTS
CS calls served in I-BTS also I-BTS acts as Drift RNC
RNC acts as Serving RNC Timing Over Packet support
IuCS cp
IuPS cp
IuPS up
IuPS up
Iur
Eth
Iur is used for CS
and CS+PS calls
IuPS cp
IuPS up
IuCS cpIuCS up
VPN GW
ToP Master
I-OMS
NetAct
DCNNetwork
IuPS cp
IuPS up (Gn)
IuCS cp
Iur to other I-BTSs
Iur to RNC
ToP
I-OMS
Iur is used for soft
handover between
I-BTSs
Eth
Eth
2+2+2
2+2+2
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I-HSPA Release Compatibility
Network Element I-HSPA Rel-1 I-HSPA Rel-2
I-HSPA Adapter ADA1.0 ADA2.0
RNC RN3.0 (CD2.2)
And RN4.0
RN4.0 CD2.0
Flexi WCDMA BTS WBTS4.0 WBTS5.0 CD1.4
OMS I-OMS1.0 I-OMS2.0
NetAct OSS5.1 OSS5.1 CD2priority CD
MSC Server M14.2 M14.2
Combi SGSN SG6 CD6;
SG7 CD2
SG6 CD9;
SG7 CD2
Flexi ISN (GGSN) FI3.2 PCD2.2 FI4.0
SIGTRAN activated in CS and PS core
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
Interfaces and Protocols
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I-BTS Flexi Mechanics
Fans and casing are missing from figure
I-BTS Flexi
I-HSPA Adapter
10/100/1000 BaseT Ethernet
Transport interface Ext3 can beconfigured to auto negotiate or
10/100/1000 Mbit/s mode Can be configured to half or full duplex
IADA MML Command ZQIS
Default: auto negotiate speed / full duplex
Externaltransportnetwork
Naming convention in this slide set:
IADA + FlexiBTS = I-BTS Flexi,
IADA + UltraBTS = I-BTS Ultra
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System Module Interfaces
Input forexternal sync
Connection toIADA
FTMtransmissionsub-module
(here: 8x E1/T1)
Note, Power Supply for BB-EXT Module has a main switch for System ModulePower feed. By pulling out the switch, power in System Module and FTM isdisconnected.
When connecting locally to I-BTS, plug in to LMP port of system module. Computersettings:
Static IP address configuration (DHCP not used)
IP Address 192.168.255.130
Subnet Mask 255.255.255.0
check with ping 192.168.255.143 (OMU IP Address) or 192.168.255.142 (DSP IP)
Gateway address not needed (all units in the same L2 domain).
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IADA HW architecture
DSP
1 GB
Flash drive
-48V DC
1GB DDR2
L2Switch
SGMII
1000Base-T/BX
DC/DC
Intel
chipset
256MBDDR2
GbEPHY
USB 2.0
1MB boot
Flash
SGMII
SGMII
Unit status
LED
Temp sensor
Temp. control
Pentium board
Pentium
1.8GHz
RJ-45
SERDES
BTS interface
Iub/Gn
Ethernettransport interface(electrical or optical)Gn
RJ-45
SFP(Optional)
DMX FPGA
Main DC/DCConverter
DC/DC
Local management Port
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IADA logical SW architecture
DSP application SW
DSP platform SW
OSEck
Operating System
Faraday DSP
RNC application SW
IPA platform SW
DMXOperating System
Intel Pentium processor
Ethernet L2 switch
To externaltransport network
to BTS
I-HSPA Adapter
DSP Module Pentium Module
VLAN3
VLAN3
VLAN2
VLAN2
VLAN4
NOTE: VLANssupported only
internally, not forexternal traffic
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I-HSPA Adapter Unit tasks
I-HSPA Adapter
Adapter Unit O&M
RNC HSPA Applications
OSEck
Pentium Computer SW
DMX
RNC ICSU (Interface Control and SignallingUnit)
-Signalling protocols for Iu, Iub, Iur
-Call admission control
-Hand-over control & Load control
-RRM-Rel99 Packet scheduler
-Signalling link control
RNC OMU (Operation and Management Unit)-RNC HW configuration mgmt
-Alarm system &Recovery functions
-Performance mgmt
-RNW parameter database & management
RNC RRMU (Radio Resources Mgmt Unit)
-RNC centralized RRM tasks, e.g. RC3
RNC RSMU (Resource and SwitchManagement Unit)
- RNC centralized resources management
RNC DMCU (Data and Macro DiversityCombining Unit)
-Macro diversity hand-overs
-Packet data processing
-Radio interface L2 (PDCP, RLC..)
RNC GTPU (GTP unit)
-Signalling protocols-HSPA CAC-Hand-over control-Load control-RRM-Signalling link control-Common channels control-Alarm system-Performance mgmt-RNW mgmt-RNW database
-Adapter unit mgmt-FlexiBTS Iub-Capa Licence key-SW mgmt-IPSec CCH SW (Mac-C)
U-plane SW
DSP Computer SW
DSPPentium
OMU
DSP
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I-HSPA Adapter HardwareEthernet Switch Module: Marvell 88E6131
Only Ports #0, #1, #2, #4 and #5 are used
Interfaces
- 3 x Base-Tx interfaces connected to RJ45 connectors: One interface is Iub interface (towards 3G BTS) [Port#0] One interface is Transport interface [Port#1] One interface is Local management interface [Port#2];
Port#2 cannot be used as a redundant link connected to Site
router
- SGMII/SERDES interface to DSP [Port#4]- Base-BX/SERDES interface to Pentium module (to Intel 82572EI)
[Port#5]
- SERDES interface to optical SFP module (optional transportinterface) [Port#6] is not used
Configuration for switch is loaded from EEPROM
- EEPROM is connected to switch with SPI-interface- EEPROM image can be loaded from Pentium (through chip set
GPIO-pins)
Switch needs to be reset before a new configuration isloaded to switch
Messaging between OMU and DSP unit is based on DMX messagestransferred via EMB (Ethernet based Message Bus). There are switch
management DMX processes running in OMU (LS8MAN) and DSP
(LSDSP). EMB messaging uses Nokia proprietary protocol
Transport
Local MGMT
SERDES
Iub
I-HSPA Adapter
OMU
Intel CPU Pentium(LS8MAN)
DSP(LS8DSP)
L2 SwitchPort #0
Port #5
Port #4
Port #1
Port #2
Port #6
Message transportation protocols between OMU and DSP
DMX Message protocol
Ethernet
Message
Iub
Transport
Local MGMT
SERDES
Port to Iub interface
Port to Transport interface
Port to Local Management
Port to SFP module optical Ethernet
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I-HSPA Adapter LAN architecture
ext2 ext3 Iub
LMP
Iu-PS/CS
Iub
EL0
OMUDSP
VLAN 1 tag 1
VLAN 2 tag 2
VLAN 3 tag 3
eth1
eth1.1
eth 1.2
eth0
eth 0.3
Switch
BTS subnet: 192.168.255.0/24 (private Iub)
LMP Subnet 192.168.254.0/24 (private ext2 only)Iub and Iu-PS/CS: Site dependent (public addresses)
The internal connections through the Ethernet SW are listed in the slide
The VLAN Tagging is only used internally there is no external VLAN support
The LMP subnet on EXT2 is tagged VLAN1. this subnet is preconfiguredThe WBTS Iub subnet is tagged VLAN2 and is also preconfigured however it willneed a Public IP address for BTS O&M.
The external connections have to be configured with external routable IP address
All Public IP address are configured during the commissioning phase using the sitecommissioning file/Macro
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I-BTS Flexi: FTM Hardware
Flexi BTS System Module Core
Flexi TransportPDU
FTEB
FTOA
FTHA
+
Flexi WCDMA BTS Flexi Transport (FTM Sub-modules) Core Interface
FTFA
FTPB
1. System Module with integrated BB.2. System Module with embedded
separate transport sub-module.
3. BTS O&M and Transport distributed
to 2 boards with 2 HW/SW systems.
FTIB
FTCC FIPB
FIEB
FIFA
FIOA
FTCC +
FTCC +
FTCD +
FIHAFTCC +
FIIBFTCC +
FTIB
IH2
FTPB
IH1
FTHA
IH1
FTOA
IH1
FTEB
IH1
FTFA
IH1
FTM5.0 ReleaseFTM2.1 ReleaseFTM2.0 Release
FTIA
IH1
FTJA
IH1
FTJA
FTIA FIIAFTCC +
FIHAFTCC +
FTM
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Transport Sub-ModuleType
InterfaceType
Number ofInterfaces
Notes
FTPB E1/T1/JT1, symmetrical 8
(8xRJ48)
ATM over PDH with IMA
FTEB E1, coaxial 8(16xSMB)
ATM over PDH with IMA
FTHA E1/T1 (FTCP cable) 16 ATM over PDH with IMA
FTOA STM-1 / OC-3, Fibre 1 x STM-1 S1.1 (LC) ATM over SDH (VC-4 mapping)
FTFA Nokia FlexBus, Cable Interface 2(2xTNC)
ATM over 16xE1 with IMA
FTIA E1/T1/JT1, Symmetrical 10/100Base-TX, (GE1)
4 PDH (4xRJ48)2(31) Ethernet (RJ45)
ATM over PDH with IMA
FTIB E1/T1/JT1, Symmetrical 10/100Base-TX, (GE1)
4 PDH (4xRJ48)2(31) Ethernet (RJ45)
ATM over PDH with IMA, ToP
FTJA E1, Coaxial 10/100Base-TX, (GE1) 4 PDH (8xSMB)2(31) Ethernet (RJ45)
ATM over PDH with IMA CES(ATM over Ethernet)
Note 1: There is an optional Gigabit Ethernet Interface available to support1000Base-SX/LX optical fibre applications (SFP)
I-BTS Flexi: FTM Hardware (2)
All the interfaces above can be used in IP over ATM transport configuration (ATM over PDH/SDH withIMA)
FTIB, FTIA and FTJA can be used with IP over Ethernet. In practice only FTIB is worth consideringbecause it supports ToP. If ToP is not needed, then one can use IADA Ethernet transport port directly ( noneed for FTIB)
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
Interfaces and Protocols
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I-HSPA AdapterInternal VLANs and Flows
ADA L2 Switch supports in IP stack of OMU and DSP the Port Based VLAN
mechanism according to VLAN 802.1Q standard. Port based VLAN is used for
security reasons and it shall ensure that there is no direct connection between Iub
port and other external ports (transport port, local management port). Therefore theswitch maintains two separate Port based VLAN mapping rules: initial configuration
rule: the system is not ready for traffic processing; and final configuration rule: the
system is up-and-running and is fully capable of processing traffic:
Internal VLAN grants traffic separation between external traffic (Network L2
domain) and internal traffic (I-BTS L2 domain)
IP packets destined/sent to/from 3G BTS internal IP addresses do not go
directly to the Core Network (CN) to guarantee that MAC addresses of 3G
BTS are not exposed to the unprotected network for security reasons;
only Ethernet ports of the C-plane and U-plane processors are in the same
VLAN as the external Ethernet ports
It shall be possible to configure static MAC addresses to support MAC-based
VLANs;
External VLAN are not supported;
Packets are forwarded only to the Ports inside the VLAN that is defined in the
VID tag
The packets are tagged by ADA L2 switch; VID tag is then stripped from the
packets when these are sent to the ADA L2 Switch egress port
The media connecting the L2 Switch do not receive any tagged packets
CN/OMSIub
Port#2 - LMT
untagged
Local MGMT
VLAN1
VLAN3VLAN2
Port #4 - DSP
Port#5 - OMU
Port#1-Transport
untagged
Port#0
PVID=2
PVID=1
PVID=2PVID=3
PVID=4
PVID=1
PVID=2
PVID=3
PVID=4
ADA L2 Switch
VID VLAN Switch Port# Description
1 VLAN1 2, 4, 5 It is used for Local Management
2 VLAN2 0, 4, 5 It is used for Iub interface
3 VLAN3 1, 4 , 5 It is used for external logical interfaces ( Iu -CS CP; Iu -PS, Iur/ Iur*) and OMS f lows
4 VLAN4 4, 5 It is reserved for messages transferred v ia EMB (Ethernet based Message Bus): DMX messages, BOOTP packet
VLAN4
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Internal VLANs
VLAN
1
VLAN
3
VLAN
2
For Local
Management
For Core
Network
For Internal
Iub
EXT 3 BTS IUBEXT 2
NOTE: Ethernet frames in VLANs are untagged (no .1Q header)
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I-HSPA AdapterIP Addressing
Host IP Address (Dec) Description
OMU 192.168.255.143 (Private) IP private address is used:
1) to terminate Iub C-Plane (NBAP) between ADA and 3G BTS
2) to forward IP packets towards ToP, BTSOM (3G BTS Flexi), AXC&OM (3G BTS Ultra)
Static MAC is for connection with 3G BTS Flexi and 3G BTS Ultra (i.e. IFUH) respectively
IP1 (Public)
IP2 (Public)
IP public address and configurable MAC provide connection for:
1) C-Plane of external transport interface (i.e. Iu-CS, I u-PS, Iur)
2) Routing of BTSOM traffic
DSP 192.168.255.142 (Private) IP private address and static MAC terminate Iub U-Plane with 3G BTS Flexi and 3G BTS Ultra (i.e. IFUH)
respectively
IP3 (Publ ic) IP publ ic address and configurable MAC terminate U-Plane of external transport interface (Iu-PS, Iur/Iur*)
L2Switch
Not Applicable It supports Port Based VLANmechanism which grants traffic separation between external traffic (Network L2domain) and internal traffic (I-BTS L2 domain)
Into ADA are configured two IP subnets to separate traffic physically by the
Transport Port # 1:
1) Private subnet is used for 3G BTS and intra-ADA traffic: this subnet,
which comprises a set of private fixed IP addresses (i.e. OMU, DSP,
3G BTS: FTM, IFUH), is not exposed to external CN subnets;
2) Public subnet is used for external traffic: Iu-CS (CP), Iu-PS, Iur/Iur*
and O&M flows
192.168.255.143
MAC: 0E-00-00-01-06-12IP1 Public OMU
IP2 Public IADA BTS O&M
L2 Switch
I-HSPA Adapter
OMU
192.168.255.142
MAC: 0E-00-00-01-06-11
IP3 Public
DSP
#4
#5#1
#2#0
I-BTS
LGM
Transport
3G BTS Ultra
Iub
3G BTS Flexi
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IP addressing example, one I-BTS
Two publically reachable subnets: IADA subnet and BTS O&M subnets
OMU has two public addresses: one IP address towards external transport network
one IP address in BTS O&M address
Flexi BTS with I-HSPA
L2 Switch L2 Switch
I-HSPA
Adapter
Iub, O&M Trans
FCM (BTS) OMU
192.168.255.1
192.168.255.129
192.168.255.143
192.168.255.142
10.1.1.1/29 OMU10.10.10.3/29 (IADA BTS O&M)
FTM (TRS)
10.10.10.2/29
FSP192.168.255.33
FSP192.168.255.34
FSP192.168.255.35
DSP
10.1.1.2/29
LGMIub
SERDES
Iub
Trans
LGM
SERDES
:Port to Iub interface
:Port to transport interface
:Port to local management
:Port to SFP module, optical ethernet
xxx.yyy.zzz.www: private address xxx.yyy.zzz.www: public address that needs to be planned
10.10.10.1/29
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BTS O&M IP interfaces in IADA (IPoE)
< ZQRI;
LOADING PROGRAM VERSION 12.9-0
I-HSPA IPA2800 2009-06-04 13:40:13
INTERROGATING NETWORK INTERFACE DATA
IF ADM IF ADDR
UNIT NAME STATE MTU PRIORITY TYPE TYPE IP ADDRESS
--------- --------- ------ ---- --------- ---- ---- -----------------------
OMU-0 EL0 UP 1500 - P 192.168.254.143/24
VLAN1 UP 1496 - P 192.168.1.143/24
VLAN2 UP 1496 - P 192.168.255.143/24
P 10.10.10.3/29
VLAN3 UP 1496 - P 10.1.1.1/29
DSP-0 ETH0.3 UP 1496 - P (10.1.1.2)/29
ETH1.1 UP 1496 - P (192.168.1.142)/24
ETH1.2 UP 1496 - P (192.168.255.142)/24
IADA BTS O&Maddress in IADA
Iub VLAN
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L2
switc
h
OMU: 192.168.255.143
2 public IP Addresses
L2
switc
h
FCM: 192.168.255.1public IP Address
UP: 192.168.255.xxx{FSP private IP}
Flexi BTS I-HSPA Adapter
FTM
192.168.255.129
public IP Address- BTSOM routing
- SMA
FTM routes BTS O&M to
OMU using OMU MAC address.
OMU routes BTS O&M to FTM.
DSP: 192.168.255.142
public IP Address
Public IPaddress in BTS
O&M subnet
Public IPaddress inexternal
transport subnet
BTS O&M IP flow
SMA = Site Management Agent
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
Interfaces and Protocols
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I-HSPA BTS Reference Configurations (IPoE, Flexi)
I-HSPA
AdapterFlexi
BTS
Option 1: IPoE using IADA Ethernet port, Flexi
to/from external transport networkIub
I-HSPA
Adapter
Flexi
BTS + FTIB
(except FIIB)
Option 2: IPoE via FTM Ethernet port (FTIB), Flexi
to/from external transport networkIub
ToP
module L2 switch
FIIB
FTIB
FTIB FIIBFTCC +
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I-HSPA BTS Reference Configurations (IPoE, Ultra)
AXC + IFUHUltra BTS
Option 1: IPoE using IADA Ethernet port, Ultra
to/from externaltransport network
Iub I-HSPA
Adapter
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IubIFUH
ADA
OMUAXC
Eth Eth
WAM
AXUIWF
3G BTS Ultra
Port#0
(Iub)
I-BTS Ultra
Port#1
(Transport)ToPA
DSP
Configurations when L2 is Ethernet (IPoE)
I-BTS Flexi: the I-HSPA Adapter (ADA) isconnected to the WCDMA BTS, i.e. FTM sub-
module L2 Switch via ADA L2 Switch. Twoconfiguration options are available.
I-BTS Ultra: the I-HSPA Adapter (ADA) isconnected to IFUH unit via ADA. Only oneconfiguration option is available.
L3 is always IP with I-BTS, but L2 towards external transport network can be either Ethernet or ATM
Ethernet transport configuration options shown below
ADA OMU
Eth
Port#0
(Iub)Port#1
(Transport)
I-BTS Flexi
Conf igura t ion Opt ion 1
DSPIub
System Module
BTSSwitch
FSP
3G BTS Flexi
FSP
FSP
FTM (any Ftxx module)
FTxx
Eth
Eth
Port#1
(Transport)
ADA OMU
Port#0
(Iub)
DSPIub
System Module
BTS Switch
FTIB
FSP
Eth
3G BTS Flexi
FSP
FSP
ToPA
Eth
Eth
I-BTS Flexi
Conf igura t ion Opt ion 2Eth
FTM Module required for O&M functionality, even if IADA Ethernet port is used forexternal transport.
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IPoE Transport Ref Config #1
IuCSCP O
&M
GnUP
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Ethernet transport Option 1 is via ADA (IHSW-33):
Iub internal interface is via ADA L2 Switch Port#0 External interfaces (e.g. Iu/Iur) are via ADA L2
Switch Port#1.
Timing over Packet feature is not supported.
I-BTS Flexi IPoE Configuration Option 1
U/C/M Plane frames
DL ToP frames
Internal Iub frames
UL ToP frames
Internal Iub
System Module
BTS Switch
FTxx
FSP
ADA
Port#0 (Iub) Port#1
(Transport)
3G BTS Flexi
MSC
SGSN
GGSN
SAS
RNC
I-BTS
ToP Master
OMSOMU
L3 router
DSP
EthEth
IP/Eth???
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IPoE Transport Ref Config #2
Operators Core
Network
.
.
.
I-BTS 1
Adapter
DSP
MSS OMS
GGSN
SGSNRNC
SASIuP
COMU
I-BTS 2
OMU
DSP
Access site Core site
Core site
router
With/without
IPSec
Public network
Flexi BTS
FCM
FCM
IP/Ethernet
VPN GW
MGW
ToP Master
FTM with
ToP slave
FTM with
ToP slave
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I-BTS Flexi IPoE Configuration Option 2
Ethernet transport Option 2 is via FTM FTIB sub-module only (ARAN1155):
FTIB (Hybrid unit 4 x E1/T1/JT1 symmetrical + Ethernet (FE+GE) + ToP + Sync Ethernet): 4 X E1/T1/JT1 are not enabled.
External interfaces are via FTM Ethernet Port.
ToP feature is supported with ToPA module embedded in FTIB card
FTIB functions as a L2 switch, forwarding U/C/M traffic to/from ADA
U/C/M Plane frames
DL ToP frames
Internal Iub frames
UL ToP frames
Internal Iub
System Module
BTS Switch
FTIB
FSP
ADA
ToPA
Port#0
(Iub)
Port#1(Transport)
3G BTS Flexi
MSC
SGSN
GGSN
SAS
RNC
I-BTS
ToP Master
OMSOMU
L3 router
L2 switch
DSP
EthEth
EIF1/2EIF3 IP/Eth
FTIB functionsas a L2 switch
only!
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FIIB Card in I-HSPA mode (from Sys Arch slides, edited)
Features:
2 FE (10/100Base-TX) 1 GE (SFP) 4 E1/T1 supported in I-HSPA ATM transport mode IEEE 1588 (ToP) 1.1 Gbps System Interface
Only in I-HSPA mode EM must support the enablingof EIF3 and additionally one of EIF1or EIF2; it is
not possible to support both EIF1 and EIF2 at
the same time
EM has to allow to configure Transport Addressand QoS, ToP, BTS Routing and DCN Routing
as well as IP Filtering in I-HSPA mode. No
changes to the input masks are needed compared
to non I-HSPA mode
The I-HSPA transport interface should be connectedto EIF3. The operator can choose either to use the
optical interface or an electrical interface to connect
the transport network; the operator should not use
VLAN 1108 and 1109 for I-HSPA traffic or ToP
traffic on the transport network. For outdoor
connection the same cable type used to connect
ADA to FCM should be used to connect ADA to
EIF3
ToP has to be allowed to be used as Sync source
IF1
IF4
.
..
.
.
.
Quad
LIU
XFRM
OVP
Clock
3.3 V
EEPROMTC
EMB
SPI
L In (1..4)
TRS_CLK
IDT82V2084
INT
EthernetSwitch
FE
88E6097
I2CMUX
XFROVP
PCA 9544
ToP
SFP
receptacleEIF1
EIF2
EIF3
GE
ACS/9550SRAM
MII
SGMII
I2C
NOTE: only Ethswitch, no IP
routing!
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Ethernet transport option is via IFUH unit which provides native IP support :
ToP feature is supported with ToPA module which is mandatory in IFUH unit
OMU functions as an IP router with Network Address Translation (NAT) for ToP packets
No embedded support for ATM transport with I-BTS Ultra is provided.
IP/Eth
3G BTS Ultra ADA
OMU
DSP
IuIub
Top
Master
IFUH
Top
Client
AXC
Control & management planes terminated in OMU
Top traffic, IP forwarding & NAT in OMU in both directions
User plane terminated in DSP
WAMWAMWAM
DCN traffic terminated in AXC & WAM, IP forwarding in OMU in both directions, no NAT
NAT required
All these must use the same source
private IP 192.168.254.140
Top Master
sends packets
to OMUs public
IP
AXC DCN
Public IP
No NAT required
WAM DCNPublic IP
I-BTS Ultra IPoE Configuration
ToP implementation details for IADA + IFUH:
NAT (Network Address Translation) required for ToP traffic to translate ToP clientsprivate IP address to OMUs public Iu address and vice versa.
IP forwarding & NAT only for ToP traffic because ToP client must use the sameIFUHs private IP address 192.168.254.140 as U/C/M planes due to IFUHimplementation restrictions.
ToP synchronization packets use always UDP port 319 and other ToP packets port320 in both directions
Hard coded NAT rules can be used on external ports:
in UL translate all traffic from 192.168.254.140 with destination port 319/320to OMUs public IP (192.168.254.140 OMUs IP in IP packet sourceaddress field)
in DL map all traffic to UDP port 319/320 with destination IP192.168.254.140 (OMUs IP 192.168.254.140 in IP packet destinationaddress field)
IADA commissioning phase is as with I-BTS Flexi.
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I-BTS Ultra support (I-HSPA516)
In I-HSPA Release 2 the Ultra Support feature extends the scope of the I-HSPA offer to cover the cases
where the I-BTS solution is based on Ultrasite WCDMA BTS allowing operator to deploy I-HSPA solution
with existing Ultrasite WCDMA BTSs; in I-HSPA Release 1 the relevant NodeB generation is FlexiBTS only
The IP and the Ethernet transport options at the Iub interface for Ultrasite WCDMA BTS are according to the
requirements inherited from WCDMA RU10 program (see RAN1634 IP Based Iub for Ultrasite WCDMA
BTS)
Some functionalities implemented in Ultrasite WCDMA BTS are not required in I-HSPA Adapter as Iub is a
local interface:
ATM transport option IP CAC IP QoS
SharedMast HeadAmplifiers
SharedAntenna
Sharedfeeders
Iub/Native IP
GGSN
Gn
RNC
Iur
I-HSPA Adapter
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IFUH Unit
Applicable with
AXUA / AXUB with all BTS cabinet types AXCC / AXCD with exception of Metrosite / Metrosite50
cabinet types
Not applicable with Standalone AXC
Interfaces 2 x Fast Ethernet (FE)
1 x Gigabit Ethernet (GE) SFP is optional
Interface capabilities
One interface, either the first FE or the GE, is used fortrunk connectivity using ATM over Ethernet technology
Remaining interfaces can be used to e.g. aggregateEthernet traffic from other 3G BTS or 2G BTS [RU10 study item]
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IP addressing example, three BTSs in the same L2 domain (IPoE)
WCDMA Flexi BTS
WBTS #1
Subnet
10.10.1.0/28TRS IP
10.10.1.1
BTS IP10.10.1.2
IADA-1
OMU: .1
DSP: .2
IADABTSOM IP
10.10.1.3
.14
IADA subnet
10.20.1.0/28
I-BTS Flexi # 1
WCDMA Flexi BTS
WBTS #2
Subnet
10.10.1.16/28TRS IP
10.10.1.17
BTS IP10.10.1.18
IADA-2
IADABTSOM IP10.10.1.19
I-BTS Flexi # 2
OMU: .3
DSP: .4
external transport network
SIGTRAN IP
10.20.1.3SIGTRAN IP
10.20.1.1
ROUTING TABLE (downlink)
to 10.10.1.0/28 via 10.20.1.1
to 10.10.1.16/28 via 10.20.1.3
to 10.10.1.32/28 via 10.20.1.5
L2 switchL2 switch
NOTE:
IADA BTSOM IP
address is
physically in OMU.
WCDMA Flexi BTS
WBTS #3
Subnet
10.10.1.32/28TRS IP
10.10.1.33
BTS IP
10.10.1.34
IADA-3
IADABTSOM IP10.10.1.35
I-BTS Flexi # 3
OMU: .5
DSP: .6
SIGTRAN IP
10.20.1.5
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
Interfaces and Protocols
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I-HSPA BTS Reference Configuration (IPoA)
IP over ATM (IPoA)
I-HSPA
AdapterFlexi
BTSFTM
Iub to/from external
transport network
This connectionuses the same
GigEth connectionas Iub betweenIADA and System
Module
ATM overPDH/SDH in FTM
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IPoA Transport Ref Config
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Ethernet transport option is via ADA (IHSW-33):
Iub internal interface is via ADA L2 Switch Port#0
External interfaces (e.g. Iu/Iur) are via ADA L2
Switch Port#1.
ToP feature is not supported.
I-BTS Flexi IPoA Configuration
ATM transport option is via FTM sub-module:
Iub internal interface is via ADA L2 Switch Port#0
External interfaces (e.g. Iu/Iur) are via FTM module port;
System Module
BTSSwitch
FTM Module (e.g. FTPB)FSP
ADA
ADA L2 Switch Port#0
FTM Port
SDH/PDH
Iub
ADA L2 Switch Port#1
ATM data flow
Eth
IP/ATM and IP/Ethernet transport options cannot be simultaneously active!
FTM sub-modules supported for ATM and Ethernet transport options are:
FTPB: 8xE1/T1/JT1 symmetrical (IMA) ARAN940/ARAN946/ARAN941).
FTEB: 8xE1 coaxial (IMA) (ARAN940).
FTOA: 1xSTM-1/VC-4 (No IMA) (ARAN942).
FTFA: 2xFlexBus (IMA) (ARAN939).
FTHA: 16xE1/T1 (ARAN1324).
FTFA: 16xE1 (Add/Drop Capability for FTFA) (ARAN1325).
FTIA: 4xE1/T1/JT1 2xFE, 1GEo.
FTJA: 4xE1/T1/JT1 coax 2xFE, 1GEo.
FTIB: 4xE1/T1/JT1 2xFE, 1GEo +ToP
In earlier versions of documents FTIB was not allowed with IPoA. However, FTIB hasbeen since tested out successfully in lab with IPoA.
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IP
SCTP
SCCP
RNSAP
M3UA
Ethernet
IP
UDP
L2
switchL2
switch
L2
switch
Example: Iur control plane over IP/Ethernet over ATMbetween Adapters
L2
switch
Adapter 1OMU
Ethernet
IP
UDP
L1
ATM
AAL5
Ethernet
IP
UDP
L1
ATM
AAL5
IP
SCTP
SCCP
RNSAP
M3UA
Ethernet
IP
UDP Transport module 1 Transport module 2
ADA FTM
internal
connection
ADA FTMinternal
connection
ADA ADA connection
Iur over
ATM
In all Adapter external interfaces,
except toward BTS, also ATM transport
is available, but then BTSs FTM moduleis used for this. Method is same for all
interfaces (as presented within this case).
Adapter 2
OMU
Note: not possible for ultra
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I-BTS Flexi: 3VCCs for Iu, Iur/Iur* and DCN (UL direction)
OMU [RNC Application]
Public: 130.1.0.101
connection to CN (i.e. Iu-
PS CP, Iu-CS CP, Iur/Iur*CP, DCN)
Private: 192.168.255.143
BTS internal network
including ADA
Port#5 (L2 Switch)
Port#4 (L2 Switch)
DSP
Public: 130.1.0.201
connection to CN (i.e. Iu-
PS UP, Iur/Iur* UP)
Private: 192.168.255.142
BTS internal network
including ADA
FTM
Private:
192.168.255.129
DEST: 130.2.0.101
DEST: 130.2.0.201
DEST: 130.2.0.201
Iu-PS CPIu-CS CP
Iur/Iur* CP
DCN
Iur/Iur* UP
Iu-PS UP
UDP port#1002
UDP port#1011
UDP port#1010
130.2.0.201 over UDP port#1010 to 192.168.255.129 MAC
FTM
130.2.0.201 over UDP port#1011 to 192.168.255.129 MAC
FTM
130.2.0.101 over UDP port#1002 to 192.168.255.129 MAC
FTM
ATM0 Iu-PS UP UDP Port: 1011 VP=xx/VC=yyy
ATM1 Iur/Iur* UP UDP Port: 1010 VP=xx/VC=yy
OMU AA0 Iu-PS/Iu-CS/Iur/Iur* CP, DCN UDP Port: 1002 VP=xx/VC=yyy
DSP
FTM
FTM is not IP
router, it just
forwards IP
packets from
VCC to L2
switch and addsUDP/IP layer
ADA (i.e. DSP/OMU [RNC
Appl] selects the correct UDP
port so that traffic will be
forwarded to the correct VCC
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I-BTS Flexi: 3VCCs for Iu, Iur/Iur* and DCN (DL direction)
OMU [RNC Application]
Public: 130.1.0.101
connection to CN (i.e. Iu-
PS CP, Iu-CS CP, Iur/Iur*CP, DCN)
Private: 192.168.255.143
BTS internal network
including ADA
Port#5 (L2 Switch)
Port#4 (L2 Switch)
DSP
Public: 130.1.0.201
connection to CN (i.e. Iu-
PS UP, Iur/Iur* UP)
Private: 192.168.255.142
BTS internal network
including ADA
FTM
Private:
192.168.255.129
DEST: 130.2.0.101
DEST: 130.2.0.201
DEST: 130.2.0.201
Iu-PS CPIu-CS CP
Iur/Iur* CP
DCN
Iur/Iur* UP
Iu-PS UP
UDP port#1002
UDP port#1011
UDP port#1010
130.2.0.201 over UDP port#1010 to 192.168.255.142
130.2.0.201 over UDP port#1011 to 192.168.255.142
130.2.0.101 over UDP port#1002 to 192.168.255.143
FTM is not IP router, it
just forwards IP packetsfrom VCC to L2 switch
and adds UDP/IP layer
Static mapping in FTM defines
VCC UDP/IP/MAC
ATM0 Iu-PS UP UDP Port: 1011 VP=xx/VC=yyy
ATM1 Iur/Iur* UP UDP Port: 1010 VP=xx/VC=yy
OMU AA0 Iu-PS/Iu-CS/Iur/Iur* CP, DCN UDP Port: 1002 VP=xx/VC=yyy
DSP
FTM
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IP addressing (IPoA)
For IP over ATM
One IP over ATM interface for OMU (AA0). This is for Iur/Iur* CP, Iu-PS
CP, Iu-CS CP, O&M DCN traffic One IP over ATM interface for DSP (ATM0). This is for Iu-PS UP
One IP over ATM interface for DSP (ATM1). This is for Iur/Iur* UP.
Addresses are created as numbered interfaces in OMU and DSP (everyIPoA interface has its own IP address)
Far-end address needed at the multiservice router (can be numbered orunnumbered)
BTS O&M addressing is as in the IPoE case
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IP addressing example (IPoA)
Numbered IPoA interfaces used at the router
in this example
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IP addressing (IPoA, ZQRI output)
< ZQRI;
LOADING PROGRAM VERSION 12.9-0
I-HSPA IPA2800 2009-06-04 13:40:13
INTERROGATING NETWORK INTERFACE DATA
IF ADM IF ADDR
UNIT NAME STATE MTU PRIORITY TYPE TYPE IP ADDRESS
--------- --------- ------ ---- --------- ---- ---- -----------------------
OMU-0 AA0 UP 1464 - N P 10.10.1.1/30
->10.10.1.2
EL0 UP 1500 - P 192.168.254.143/24
VLAN1 UP 1496 - P 192.168.1.143/24
VLAN2 UP 1496 - P 192.168.255.143/24
P 10.16.71.51/29
DSP-0 ATM0 UP 1464 - N P (10.10.2.1)/30
-> 10.10.2.2
ATM1 UP 1464 - N P (10.10.3.1)/24
-> 10.10.3.2
ETH1.1 UP 1496 - P (192.168.1.142)/24
ETH1.2 UP 1496 - P (192.168.255.142)/24
COMMAND EXECUTED
NOTE: VLAN3 not needed with IPoA
HINT: one can define one Iur* subnet and create the ATM1 interface tothat subnet all Iur* user plane is sent via this interface because IPstack sees all Iur* addresses as directly connected no need for routeconfiguration for every neighbour I-BTS. (Parameter:
ADASC/DSPATM1NetMask)
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
Interfaces and Protocols
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UL
ToP traffic is terminated at Top Master;
ToP frames are directly forwarded to the ToP Master;
DL
ToP traffic is switched by the FTIB/FIIB L2 switch towards the ToPA module;
Incoming ToP frames are a subset of the overall data flowing through the CN connection;
ToP frames are directly forwarded (switched) to the ToPA module embedded in the FTIB module; all remaining traffic having
ADA as destination is switched to the FTIB Ethernet Port EIF3 connected to the ADA L2 Switch Port#1
ToPA module IP address has to be in the same subnet with OMU and DSP
Timing over Packet feature (ARAN1254)
U/C/M Plane frames
DL ToP frames
Internal Iub frames
UL ToP frames
Internal Iub
System Module
BTS Switch
FTIB
FSP
ADA
ToPA
Port#0 (Iub) Port#1 (Transport)
3G BTS Flexi
MSC
SGSN
GGSN
SAS
RNC
I-BTS
ToP Master
OMSOMU
Intel
Westport
Transport
Switch
DSP
EthEth
EIF1/2
EIF3IP/Eth
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Synchronization from TDM Traffic Interfaces
Synchronization is achieved using Flexi Transport sub-module available for: E1/T1/JT1
STM-1 FlexBus
This solution applies in case of ATM transport option via the following FTM sub-module: FTPB: 8xE1/T1/JT1 symmetrical [IMA] ARAN940/ARAN946/ARAN941) FTEB: 8xE1 coaxial [IMA] (ARAN940) FTOA: 1xSTM-1/VC-4 [No IMA] (ARAN942) FTFA: 2xFlexBus [IMA] (ARAN939) FTHA: 16xE1/T1 (ARAN1324) FTFA: 16xE1-Add/Drop Capability for FTFA (ARAN1325) FTIA: (ARAN940/ARAN946/ARAN941) FTJA: (ARAN940/ARAN946/ARAN941) FTIB
Sync from TDM can also be used with IPoE With IPoE the TDM interface carries no traffic (only sync), see next slide
I-BTS Flexi
TDM TDM
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Synchronization from 2.048MHz G.703 signal
2.048MHz G.703 signal
SYNC input is used at the System Module I-HSPA traffic is via Ethernet port on ADA (IHSW-33)
I-BTS Flexi
BTS
E1/T1
IP / Ethernet
TDM
Eth
SYNC
SYNC
2.048MHz
G.703
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Synchronization from GPS
Flexi BTS System Module
Flexi BTS RF Modules
-48VDC
PPS
FSEG Mediator
FPF Power Distribution assembly FTM Transmission assembly (FTPA in this figure)
FCM Con trol and Multiplexing assembly/ FSP Signal processing
assembly
MDR14 MDR26MDR36
LMP5 x Optical (duplex LC)
connectors
8 x RJ- 48C (in this case
FTPA)4 pcs Multi-beam
connectors
F F F F
S G
SYNC port
(995098_) 2.4m
48VDC BB extension
(995083)
GPS Port
(471606 30m,
47xxxx 100m)
Grounding
FYGA
(471442_)
Solution includes:
GPS antenna with integratedreceiver
In I-HSPA Release 2 theMediator (FSEG) between
FlexiBTS System Module and
GPS receiver is no more
required!
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
I-OMS Overview
Interfaces and Protocols
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OMS
One OMS can control several I-BTSs
NTP server for I-BTSs can run in OMS
NTP server IP address is OMS IP address
Runs NTP client for NTP server in NetAct, to derive master time
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OMS HW
For the I-HSPA G5 OMS:
HP ProLiant DL360 G5 1U rack-mount server
8 GB memory
two 146 GB Serial Attached SCSI (SAS) hard drives
an external monitor (with VGA cable) and external keyboard (with PS/2 orUSB
cable) connected to the HP ProLiant server
19-inch rack
For the I-HSPA G6 OMS:
HP ProLiant DL360 G6 1U rack-mount server
12 GB memory
two 146 GB 2,5" SFF SAS Hot Plug hard drives
an external monitor (with VGA cable) and external keyboard (with PS/2 orUSB
cable) connected to the HP ProLiant server
19-inch rack
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IP Planning requirements for OMS
OMS has two Ethernet interfaces
Two IP addresses are needed for OMS, they should beallocated from the same subnet
The southbound IP address of OMS is configured in IADAduring commissioning (parameter:ADASC/OMSIpAddress)
Northbound address is for NetAct
ADASC/NTPServerIPAddress is the same asADASC/OMSIpAddress, when OMS is the NTP server for I-BTSs
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Plan Creation/editing Overview
I-BTS parameters can be browsed and edited in OMS usingNetwork Element Parameter Editor
Plans can be downloaded to I-BTS and activated
Plans can be uploaded from I-BTS as an XML file
The XML file can be loaded to Plan Editor
Mass creation/editing of plans takes place in Plan Editorand/or Excel
NOTE: also signalling parameters can be downloaded to I-BTS using an xml file (no MML needed)
The same functionality is available from NetAct in which caseOMS is a mediator (NetAct does not access I-BTS directly, butvia OMS)
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CM from NetAct versus CM from OMS
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InterfacesProtocols
I-BTS logical interfaces according to the 3G reference model are:
Iu-CS-c: it is between I-BTS and the MSC
Iu-PS interface which is logically divided into two parts:
Iu-PS-c: it is between I-BTS and SGSN handling control data
Iu-PS-u: it is between I-BTS and SGSN/GGSN handling user data
Iur* interface: it is between I-BTS and I-BTS and up to 32 instances can be supported
Iur: it is between I-BTS and 3G RNC; only 1 instance; it is due to I-BTS Sharing feature Iur+Iur* = up to 32 instances as maximum
Gn-u: it is between I-BTS and GGSN, handling user plane data; it is due to direct tunnelfunctionality (also standardized in 3GPP)
O&M: it is between I-BTS and OMS/NetAct
Iu-PC: it is between I-BTS and SAS for LCS services
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Outline
I-HSPA Network architecture
I-BTS hw/sw and physical connections
Internal VLANs and IP addressing principles
Transport reference configurations and IP addressingexamples
IP over Ethernet (IPoE)
IP over ATM (IPoA)
Synchronization configurations
I-OMS Overview
Interfaces and Protocols
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I-BTS Flexi
ProtocolsIu-CS: Control Plane
IP/Ethernet option IP/AAL5/ATM option
The main task of the Radio Access Network
Application Part (RANAP) is to set up and releasededicated connections, with defined capacity and
QoS performance, between the UE and the CN.Such a dedicated connection is called Radio
Access Bearer (RAB)
The Signalling Connection Control Part (SCCP)offers direct signalling connections for each active
UE: SCCP connections are used for
differentiating the signalling transactions intendedfor different subscribers
The Stream Control Transmission Protocol(SCTP) is an alternative to the unreliable UDPand the reliable but slow TCP protocol. SCTP is
described in IETF RFC 3286
IP shall be supported according to IP version 4[RFC791] even though 3GPP specification
requires IPv6 for IP option
The MTP3 User Adaptation Layer (M3UA)
supports the transport of SCCP messages overIP using the services of SCTP. M3UA is
described in RFC 3332
MSS
IPv4
SCCP
ATM
AAL5
PDH/SDH
RANAP
Iu-CS
I-BTS Flexi MSS
Iu-CS
Ethernet-PHY
Ethernet-MAC
IPv4
SCTP
M3UA
SCCP
RANAP
M3UA
SCTP
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I-BTS Flexi
ProtocolsIu-PS: Control Plane
IP/Ethernet option IP/AAL5/ATM option
The main task of the Radio Access Network
Application Part (RANAP) is to set up and releasededicated connections, with defined capacity and
QoS performance, between the UE and the CN.Such a dedicated connection is called Radio
Access Bearer (RAB)
The Signalling Connection Control Part (SCCP)offers direct signalling connections for each active
UE: SCCP connections are used for
differentiating the signalling transactions intendedfor different subscribers
The Stream Control Transmission Protocol(SCTP) is an alternative to the unreliable UDPand the reliable but slow TCP protocol. SCTP is
described in IETF RFC 3286
IP shall be supported according to IP version 4[RFC791] even though 3GPP specification
requires IPv6 for IP option
The MTP3 User Adaptation Layer (M3UA)
supports the transport of SCCP messages overIP using the services of SCTP. M3UA is
described in RFC 3332
SGSN
IPv4
SCCP
ATM
AAL5
PDH/SDH
RANAP
Iu-PS
I-BTS Flexi SGSN
Iu-PS
Ethernet-PHY
Ethernet-MAC
IPv4
SCTP
M3UA
SCCP
RANAP
M3UA
SCTP
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ProtocolsIu-PS: User Plane / Gn One Tunnel Solution:
IP/Ethernet option IP/AAL5/ATM optionGPRS Tunnelling Protocol (GTP). At the Iu-PSinterface, a connection-oriented data bearer isobtained by forming a tunnel between the I-BTSand the SGSN. This tunnel is then extended from
the SGSN to the GGSN
ATM
AAL5
IPv4
UDP
GTP-U
Iu-PS User Plane Protocol
PDH/SDH
Ethernet-PHY
Ethernet-MAC
IPv4
UDP
GTP-U
Iu-PS User Plane Protocol
One tunnel solution: I-BTS is directly connected to GGSN
UDP shall be supported according to IETF RFC768.UDP protocol will be used for the transport of datain the User plane. On Iub interface BTS ignores
UDP checksum of DL packets. On UL packets BTSfills checksum 0 to mark that checksum is not used.
The UDP checksum generation and verification shallbe supported on Iu and Iur interfaces
I-BTS
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ProtocolsIur*/Iur: Control and User Plane
Iur Control Plane
IP/Ethernet option IP/AAL5/ATM option
Iur User Plane
Iur User Plane
Ethernet-PHY
Ethernet-MAC
IPv4
SCTP
RNSAP
SCCP
Iur Control Plane
IPv4
SCTP
M3UA
RNSAP
SCCP
ATM
AAL5
PDH/SDH
ATM
AAL5
IPv4
UDP
PDH/SDH
PCH
FP
FACH
FP
DCH
FP
Ethernet-PHY
Ethernet-MAC
IPv4
UDP
PCH
FP
FACH
FP
DCH
FP
M3UA
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1
2
Blue boxes indicate IP over Ethernet option
Green boxes indicate IP over ATM option
ProtocolsO&M and Iu-PC interfaces
The O&M interfaces or theIuPC interface towards theStand-alone A-GPSServing mobile locationcentre (SAS) are basedeither on IP over Ethernetor IP over ATM (IPoA)transport
IP over Ethernettransport is supported viathe I-HSPA Adapter
IP over ATM transport issupported via theFlexiBTS transmission
module
BTS & Adapter
O&M protocols
BTS & Adapter
O&M protocols
IPIP
AAL5AAL5
ATMATM
PHYPHY
IPIP
EthernetEthernet
PCAP (Position Calculation
Application Part)
PCAP (Position Calculation
Application Part)
SCCPSCCP
M3UAM3UA
SCTPSCTP
O&M Interfaces Iu-PC Interface
TCP/FTPTCP/FTP
IPIP
PHYPHY
ATMATM
AAL5AAL5IPIP
EthernetEthernet
TCP/FTPTCP/FTP
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Transport Network ScenariosI-BTS Flexi (ADA+FTxx): ATM over E1/T1/JT1/STM-1 Transport
GGSN
SGSN
AAL5
(IMA)
TDM PHY
(IMA)
TDM PHY
AAL5
ATM ATM
L4
(Carrier) IP
Eth PHY
Eth MAC
Eth PHY
I-HSPA
Adapter
L4
IP
LLC/SNAP LLC/SNAP
Eth MAC
IP
IP Router
TDM
System Module
with FTM
Sub-Modules
RNC
IP
Eth
I-BTS Flexi
The FTM Sub-modules supported are the following:
FTPB: 8 x E1/T1/JT1 symmetrical (IMA) (ARAN940/ARAN946/ARAN941)FTEB: 8 x E1 coaxial (IMA) (ARAN940)
FTOA: 1 x STM-1/VC-4 (No IMA) (ARAN942)
FTFA: 2 x FlexBus (IMA) (ARAN939)
FTHA: 16 x E1/T1 (ARAN1324)
FTFA: 16 x E1 (Add/Drop Capability for FTFA) (ARAN1325)
NO FTIB
Externalinterfaces
I-BTS Flexi ATMI-BTS Ultra IP
I-BTS Flexi IP
I-BTS Flexi CNRouterIP over AAL5 IP over Ethernet
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Transport Network ScenariosFlexbus Transport
AAL5
(IMA)
TDM PHY
(IMA)
TDM PHY
AAL5
ATM ATM
L4
(Carrier) IP
Eth PHY
Eth MAC
Eth PHY
L4
IP
LLC/SNAP LLC/SNAP
Eth MAC
IP
I-BTS Flexi
M x E1/T1MWR-IU MWR-IU
M x E1/T1M x E1/T1
IP Router or
Ethernet Switch
GGSN
SGSN
RNC
I-BTS Ultra
I-BTS Flexi with IP
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Transport Network ScenariosI-BTS Flexi (ADA+FTIB): IP/Ethernet Transport
I-HSPAAdapter
IP Router or
Ethernet Switch
System Module +FTIB
IP/Ethernet
I-BTS Flexi
Eth MAC
L4
Eth PHY
IP
Eth MAC
Eth PHY
IP
Eth PHY
Eth MAC
L4
Eth PHY
(Carrier) IP
Eth MAC
Externalinterfaces
GGSN
SGSN
RNC
I-BTS Ultra
I-BTS Flexi with IP
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Transport Network ScenariosI-BTS Ultra: IP/Ethernet Transport
I-HSPAAdapter
IFUHcard
IP/Ethernet
I-BTS Ultra
Eth MAC
L4
Eth PHY
IP
Eth MAC
Eth PHY
IP
Eth PHY
Eth MAC
L4
Eth PHY
(Carrier) IP
Eth MAC
Externalinterfaces
GGSN
SGSN
RNC
I-BTS Ultra
I-BTS Flexi with IP
IP Router or
Ethernet Switch
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I-BTS Flexi - IP/AAL5/ATM TransportATM Service Categories
ATM Service Categories CBR, UBR and UBR+ shall be implemented according to AF-TM-0121.000 version 4.1 and AF-TM-0150.000
The ATM service category UBR has been extended by ATM Forum standard to support an additionalparameter Minimum Desired Cell Rate (MDCR). An UBR implementation that supports the MDCRparameter is commonly denoted as UBR+
The UBR+ service category is specified if the MDCR (Minimum Desired Cell Rate) parametervalue is set to more than 0. The UBR+ service category includes the UBR service category as
well
The following ATM service categories shall be supported:
ATM Layer Service Category User configurable parameters
Constant Bit Rate (CBR) PCR, CDVT (1)
Unspecified Bit Rate (UBR) PCR, MDCR=0
Unspecified Bit Rate+ (UBR+) PCR, MDCR>0 (2)
Table: Service categories and traffic parameters
(1) CDVT parameter is mandatory
(2) MDCR PCR for an UBR+ connection
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I-BTS Flexi - IP/AAL5/ATM TransportUBR+ for Control/User/Management Plane (ARAN1192)
This feature applies to I-BTS Flexi only; I-BTS Flexi can use ATM as transport layer towards other ATMnetwork elements (e.g. other I-BTSs or Core Network Elements); Transmission paths are provided by
PDH/SDH ATM service categoryUBR+ is introduced for Iu-CS (C-Plane), Iu-PS, Iur and DCN interfaces UBR+ service category increases transport efficiency and enables to benefit from statistical multiplexing
gain in RAN transport
MDCR is a VCC parameter that represents the minimum ATM cell rate that should be granted to a VCC.Cell rates above the MDCR share a common bandwidth among the VCCs configured as UBR/UBR+ under
control of UBRshare parameters
UBR+ solution provides the parameter called UBRshare to favour individual UBR+ connections. Howmuch BW a UBR+ connection will get above its MDCR guarantee depends on the current traffic conditions
and on the ratio of that connection's UBRshare attribute to the sum of all UBRshare attributes of all UBR+
connections
VCC1 CBR (always guaranteed)
MDCR for VCC3 UBR+ (guaranteed)
MDCR for VCC2 UBR+ (guaranteed) Physical link
capacity
Could take
physical linkcapacity, if no
other traffic
present
Could take
physical link
capacity, if no
other traffic
present
VCC1 (CBR)
VCC2 (UBR+)
VCC3 (UBR+)
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AAL5
(IMA)
PDH/SDH
PHY
(IMA)
PDH/SDH
PHY
AAL5
ATM ATM
L4
(Carrier) IP
Eth PHY
Eth MAC
Eth PHY
I-HSPA
Adapter
L4
IP
LLC/SNAP LLC/SNAP
Eth MAC
IP
TDM
System Module
with FTM
Sub-Modules
RNC
IP/
Ethernet
Transport Network ScenarioI-BTS Flexi IP/AAL5/ATM Transport with I-BTS Sharing feature
I-BTS Flexi
I-BTS Flexi RNCRouterIP/AAL5/ATM IP/Ethernet
Iur
IP Router or
Ethernet Switch
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I-HSPA O&M Architecture
I-HSPA O&M
architecture
I-HSPA OMS
AdapterI-HSPA BTS
NetAct
NWI3 (Same services provided as in RNC)
IPSec pipe
BTS O&M interface (from WiMAX)
BTS O&M interface
Iubover IP (Fixed configuration) RNW
DB Iu-ps over IP (over ethernet) SGSN/GGSN(Direct Tunnel to GGSN)
Optional: ATM connection
by FTM Iu-ps over IP over ATM
LCS/SMLCIu-pc over IP (over ethernet)
I-HSPA BTSIur over IP (over ethernet)
External IP ROUTER
as WiMAX
FTP
Optional: External
ATM-IP ROUTER
BTS
Master O&M
BOIMED
PMFMSW
mngHW
mngPlanmng
LicenMng
Secmng
Topology
EM
ParameterEditor
Topology
SW
mng
FM
LicenMng
PM
From
WiMAX OMS
From
WiMAX OMS
From
RNC OMS
Iu-pc over IP over ATM
AAL5
ATM
L1
UDP
IP
Ethernet
AAL5
ATM
L1
UDP
IP
Ethernet
Iur over IP over ATM
BTS
EMsBTS
EMs
TelnetMML interface (locally) IPSec pipe
IPSec pipe
IPSec pipe
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I-BTS FlexiTermination of BTSOM and role of FTM
FTM, which is in charge to terminate TLS, terminates all management connections: it means that all O&M
traffic is going via FTM even in case the content is sometimes transparent (e.g. file transfers towards FCM)
Related features implemented in FTM are:
Secure BTS O&M Secure File Transfer User Management Log Management Certificate Management Secure Element Manager
The functionality is implemented in the Site Management Agent (SMA)
Agent
SiteAgent
OMS
NetAct
FTMFCM
Agent
BTSOMMaster
I-BTS Flexi
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Site Management Agent (SMA)Site Management Agent (SMA) (WBTS4.0; I-HSPA-Adapter [RAS07])
RUIM (Remote User Information Management) for authentication only: Remote User Accounts on LDAP server Local User Accounts on NE, only one per NE Authentication (username and password) and Authorization (permissions)
FTP Interface: FTM and FCM maintain own public IP address for FTP
Site Management Agent (SMA) Evolution (WBTS5.0)
Transport Layer Security (TLS / SSL) for the BTSOM/ASN.1 management connection Secure File Transfer between NMS and BTS based on HTTPs RUEM (Remote User Event Log Management): all management operations are logged for off-line evaluation Certificate Management Protocol (CMPv2 support)
NWI3
XoH
/
TRSBTSRUIM RUEM
SOAP
BTSOM/ASN1
XoH
ASN.1Gateway
XoH
Gateway BTSOM
TLS
TRSOM
RNSSplit
SMA
NWI3
XoH
TRS BTSRUIM RUEM
BTSOM/ASN.1
XoH
ASN.1Gateway
XoHGateway
TLS
RNSSplit
FileManager
http
httpTFTP
Cert
Mgmt
CMPv2 SMA
BTSOM/ASN.1
WBTS4.0 WBTS5.0
BTSOM/ASN.1
BTSOM