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1.
System Architecture
Academy course: I-HSPA Operation and Maintenance Release 2.0 System Architecture 1 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 1
2.
System Architecture
Nokia Siemens Networks Academy Legal notice Intellectual Property Rights All copyrights and intellectual property rights for Nokia Siemens Networks training documentation, product documentation and slide presentation material, all of which are forthwith known as Nokia Siemens Networks training material, are the exclusive property of Nokia Siemens Networks. Nokia Siemens Networks owns the rights to copying, modification, translation, adaptation or derivatives including any improvements or developments. Nokia Siemens Networks has the sole right to copy, distribute, amend, modify, develop, license, sublicense, sell, transfer and assign the Nokia Siemens Networks training material. Individuals can use the Nokia Siemens Networks training material for their own personal self-development only, those same individuals cannot subsequently pass on that same Intellectual Property to others without the prior written agreement of Nokia Siemens Networks. The Nokia Siemens Networks training material cannot be used outside of an agreed Nokia Siemens Networks training session for development of groups without the prior written agreement of Nokia Siemens Networks. 2 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 2
3.
System Architecture
Document change history Date Version Name Change comment 12 Nov 2009 1.0 R. Benson Initial version 3 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 3
4.
System Architecture
Outline • I-HSPA Network architecture • I-BTS hw/sw and physical connections • Internal VLANs and IP addressing principles • Transport reference configurations and IP addressing examples – IP over Ethernet (IPoE) – IP over ATM (IPoA) • Synchronization configurations • Interfaces and Protocols 4 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 4
5.
System Architecture
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 Adapter implementing 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 5 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 5
6.
System Architecture
I-HSPA Network Architecture An Evolutionary Step towards LTE MGW PSTN NodeB RNC MSC-S Radio Network SGSN GGSN Internet Core Network I-HSPA For R99 services SGSN I-BTS GGSN Internet Radio Network Core Network LTE eGSN-c eNodeB eGSN-u Internet Radio Network Core Network 6 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 6
7.
System Architecture
I-HSPA Rel-2 • HSDPA calls supported by I-BTS • CS calls served in I-BTS also NetAct – I-BTS acts as Drift RNC MSS – RNC acts as Serving RNC • IuPS cp • Timing Over Packet support • IuPS up (Gn) Eth IuCS cp • IuCS cp DCN I-BTS • Iur to other I-BTS’s Network • Iur to RNC I-OMS Eth • ToP Eth SGSN 2+2+2 • I-OMS Eth IuPS cp IuPS up IP / Iur IP / Ethernet Eth GGSN Eth IuPS up I-BTS Iur is used for CS and CS+PS calls RNC Eth IuCS cp 2+2+2 IuCS up ToP Master Eth IuPS cp Iur is used for soft IuPS up handover between VPN GW I-BTS’s 7 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 7
8.
System Architecture
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) RN4.0 CD2.0 And RN4.0 Flexi WCDMA BTS WBTS4.0 WBTS5.0 CD1.4 OMS I-OMS1.0 I-OMS2.0 NetAct OSS5.1 OSS5.1 CD2 priority CD MSC Server M14.2 M14.2 Combi SGSN SG6 CD6; SG6 CD9; SG7 CD2 SG7 CD2 Flexi ISN (GGSN) FI3.2 PCD2.2 FI4.0 • SIGTRAN activated in CS and PS core 8 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 8
9.
System Architecture
Outline • I-HSPA Network architecture • I-BTS hw/sw and physical connections • Internal VLANs and IP addressing principles • Transport reference configurations and IP addressing examples – IP over Ethernet (IPoE) – IP over ATM (IPoA) • Synchronization configurations • Interfaces and Protocols 9 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 9
10.
System Architecture
I-BTS Flexi Mechanics External transport network I-HSPA Adapter 10/100/1000 BaseT Ethernet Fans and casing are missing from figure • Transport interface Ext3 can be configured 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 I-BTS Flexi Naming convention in this slide set: IADA + FlexiBTS = I-BTS Flexi, IADA + UltraBTS = I-BTS Ultra 10 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 10
11.
System Architecture
System Module Interfaces FTM transmission Connection to sub-module IADA (here: 8x E1/T1) Input for external sync 11 © Nokia Siemens Networks RA34051EN02GLA0 Note, Power Supply for BB-EXT Module has a main switch for System Module Power feed. By pulling out the switch, power in System Module and FTM is disconnected. When connecting locally to I-BTS, plug in to LMP port of system module. Computer settings: 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). RA34051EN02GLA0 11
12.
System Architecture
IADA HW architecture DC/DC Pentium 1.8GHz 1GB DDR2 1MB boot Flash Intel Temp sensor DMX FPGA chipset USB 2.0 Pentium board 1000Base-T/BX RJ-45 1 GB SGMII Local management Port Flash drive L2 256MB DDR2 Switch GbE BTS interface PHY Iub/Gn SGMII RJ-45 DSP SGMII Ethernet transport interface SERDES (electrical or optical) SFP (Optional) Gn DC/DC -48V DC Main DC/DC Unit status Temp. control Converter LED 12 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 12
13.
System Architecture
IADA logical SW architecture I-HSPA Adapter DSP Module Pentium Module DSP application SW “RNC” application SW DSP platform SW IPA platform SW OSEck DMX Operating System Operating System Intel Pentium processor Faraday DSP To external transport network to BTS VLAN4 VLAN2 VLAN3 VLAN2 VLAN3 Ethernet L2 switch NOTE: VLANs supported only internally, not for external traffic 13 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 13
14.
System Architecture
I-HSPA Adapter Unit tasks RNC ICSU (Interface Control and Signalling Unit) I-HSPA Adapter -Signalling protocols for Iu, Iub, Iur -Call admission control -Hand-over control & Load control RNC HSPA Applications -RRM -Signalling protocols -Rel99 Packet scheduler -HSPA CAC -Signalling link control -Hand-over control OMU -Load control -RRM RNC OMU (Operation and Management Unit) -Signalling link control -RNC HW configuration mgmt -Common channels control -Alarm system &Recovery functions -Alarm system -Performance mgmt -Performance mgmt -RNW parameter database & management -RNW mgmt -RNW database RNC RRMU (Radio Resources Mgmt Unit) -RNC centralized RRM tasks, e.g. RC3 -Adapter unit mgmt -FlexiBTS Iub RNC RSMU (Resource and Switch -Capa Licence key Management Unit) -SW mgmt Adapter Unit O&M CCH SW (Mac-C) - RNC centralized resources management -IPSec U-plane SW RNC DMCU (Data and Macro Diversity Combining Unit) DSP -Macro diversity hand-overs Pentium Computer SW DSP Computer SW -Packet data processing DMX OSEck -Radio interface L2 (PDCP, RLC..) Pentium DSP RNC GTPU (GTP unit) 14 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 14
15.
System Architecture
I-HSPA Adapter Hardware Ethernet Switch Module: Marvell 88E6131 Only Ports #0, #1, #2, #4 and #5 are used I-HSPA Adapter Interfaces OMU - 3 x Base-Tx interfaces connected to RJ45 connectors: Intel CPU Pentium • One interface is Iub interface (towards 3G BTS) [Port#0] (LS8MAN) • One interface is Transport interface [Port#1] • One interface is Local management interface [Port#2]; Port #5 Port #1 Transport Port#2 cannot be used as a redundant link connected to Site Local MGMT Iub Port #0 L2 Switch Port #2 router Port #6 SERDES - SGMII/SERDES interface to DSP [Port#4] Port #4 - Base-BX/SERDES interface to Pentium module (to Intel 82572EI) [Port#5] DSP - SERDES interface to optical SFP module (optional transport (LS8DSP) interface) [Port#6] is not used Configuration for switch is loaded from EEPROM Iub Port to Iub interface - EEPROM is connected to switch with SPI-interface Transport Port to Transport interface - EEPROM image can be loaded from Pentium (through chip set Local MGMT Port to Local Management GPIO-pins) SERDES Port to SFP module optical Ethernet • Switch needs to be reset before a new configuration is loaded to switch Message transportation protocols between OMU and DSP Messaging between OMU and DSP unit is based on DMX messages transferred via EMB (Ethernet based Message Bus). There are switch Message management DMX processes running in OMU (LS8MAN) and DSP (LSDSP). EMB messaging uses Nokia proprietary protocol DMX Message protocol Ethernet 15 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 15
16.
System Architecture
I-HSPA Adapter LAN architecture DSP Switch OMU eth1 LMP EL0 eth1.1 VLAN 1 tag 1 eth 1.2 VLAN 2 tag 2 Iub eth0 VLAN 3 tag 3 eth 0.3 Iu-PS/CS ext2 ext3 Iub 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) 16 © Nokia Siemens Networks RA34051EN02GLA0 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 preconfigured The WBTS Iub subnet is tagged VLAN2 and is also preconfigured however it will need 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 site commissioning file/Macro RA34051EN02GLA0 16
17.
System Architecture
I-BTS Flexi: FTM Hardware Flexi WCDMA BTS Flexi Transport (FTM Sub-modules) Core Interface FTPB FTCC + FIPB FTEB FTCC + FIEB FTFA FTCC + FIFA PDU Flexi Transport FTOA FTCD + FIOA Flexi BTS System Module Core FTHA FTCC + FIHA FTIA FTCC + FIIA FTJA FTCC + FIHA FTIB FTCC + FIIB FTM FTPB FTOA FTFA FTEB IH1 IH1 IH1 IH1 1. System Module with integrated BB. FTJA FTIA FTHA FTIB 2. System Module with embedded separate transport sub-module. 3. BTS O&M and Transport distributed IH1 IH1 IH1 IH2 to 2 boards with 2 HW/SW systems. FTM2.0 Release FTM2.1 Release FTM5.0 Release 17 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 17
18.
System Architecture
I-BTS Flexi: FTM Hardware (2) Transport Sub-Module Interface Number of Notes Type Type Interfaces FTPB E1/T1/JT1, symmetrical 8 ATM over PDH with IMA (8xRJ48) FTEB E1, coaxial 8 ATM over PDH with IMA (16xSMB) 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 ATM over 16xE1 with IMA (2xTNC) FTIA E1/T1/JT1, Symmetrical 10/100Base- 4 PDH (4xRJ48) ATM over PDH with IMA TX, (GE1) 2(31) Ethernet (RJ45) FTIB E1/T1/JT1, Symmetrical 10/100Base- 4 PDH (4xRJ48) ATM over PDH with IMA, ToP TX, (GE1) 2(31) Ethernet (RJ45) FTJA E1, Coaxial 10/100Base-TX, (GE1) 4 PDH (8xSMB) ATM over PDH with IMA CES 2(31) Ethernet (RJ45) (ATM over Ethernet) Note 1: There is an optional Gigabit Ethernet Interface available to support 1000Base-SX/LX optical fibre applications (SFP) • All the interfaces above can be used in IP over ATM transport configuration (ATM over PDH/SDH with IMA) • FTIB, FTIA and FTJA can be used with IP over Ethernet. In practice only FTIB is worth considering because it supports ToP. If ToP is not needed, then one can use IADA Ethernet transport port directly ( no need for FTIB) 18 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 18
19.
System Architecture
Outline • I-HSPA Network architecture • I-BTS hw/sw and physical connections • Internal VLANs and IP addressing principles • Transport reference configurations and IP addressing examples – IP over Ethernet (IPoE) – IP over ATM (IPoA) • Synchronization configurations • Interfaces and Protocols 19 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 19
20.
System Architecture
I-HSPA Adapter Internal VLANs and Flows ADA L2 Switch Port#5 - OMU ADA L2 Switch supports in IP stack of OMU and DSP the Port Based VLAN PVID=1 mechanism according to VLAN 802.1Q standard. Port based VLAN is used for PVID=2 PVID=3 security reasons and it shall ensure that there is no direct connection between Iub PVID=4 port and other external ports (transport port, local management port). Therefore the switch maintains two separate Port based VLAN mapping rules: initial configuration rule: the system is not ready for traffic processing; and final configuration rule: the Port#1-Transport system is up-and-running and is fully capable of processing traffic: untagged Iub CN/OMS Internal VLAN grants traffic separation between external traffic (Network L2 Port#0 VLAN3 domain) and internal traffic (I-BTS L2 domain) VLAN2 PVID=2 VLAN4 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; Local MGMT only Ethernet ports of the C-plane and U-plane processors are in the same Port#2 - LMT VLAN1 VLAN as the external Ethernet ports untagged It shall be possible to configure static MAC addresses to support MAC-based VLANs; Port #4 - DSP PVID=1 External VLAN are not supported; PVID=2 Packets are forwarded only to the Ports inside the VLAN that is defined in the PVID=3 VID tag PVID=4 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 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 flows 4 VLAN4 4, 5 It is reserved for messages transferred via EMB (Ethernet based Message Bus): DMX messages, BOOTP packet 20 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 20
21.
System Architecture
Internal VLANs EXT 2 EXT 3 BTS IUB VLAN VLAN VLAN 1 3 2 For Local For Core For Internal Management Network Iub NOTE: Ethernet frames in “VLANs” are untagged (no .1Q header) 21 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 21
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System Architecture
I-HSPA Adapter IP Addressing I-HSPA Adapter 3G BTS Ultra 192.168.255.143 OMU 3G BTS Flexi MAC: 0E-00-00-01-06-12 IP1 Public OMU IP2 Public IADA BTS O&M Into ADA are configured two IP subnets to separate traffic physically by the Transport Port # 1: #5 1) Private subnet is used for 3G BTS and intra-ADA traffic: this subnet, #1 Transport which comprises a set of private fixed IP addresses (i.e. OMU, DSP, Iub #0 L2 Switch #2 LGM 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* #4 and O&M flows 192.168.255.142 DSP MAC: 0E-00-00-01-06-11 IP3 Public I-BTS 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) IP public address and configurable MAC provide connection for: IP2 (Public) 1) C-Plane of external transport interface (i.e. Iu-CS, Iu-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 (Public) IP public address and configurable MAC terminate U-Plane of external transport interface (Iu-PS, Iur/Iur*) L2 Not Applicable It supports Port Based VLAN mechanism which grants traffic separation between external traffic (Network L2 Switch domain) and internal traffic (I-BTS L2 domain) 22 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 22
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System Architecture
IP addressing example, one I-BTS Flexi BTS with I-HSPA I-HSPA Adapter FCM (”BTS”) OMU 192.168.255.1 192.168.255.143 10.10.10.2/29 10.1.1.1/29 OMU 10.10.10.3/29 (IADA BTS O&M) FSP 192.168.255.33 Iub, O&M Trans FSP 192.168.255.34 L2 Switch Iub L2 Switch LGM SERDES FSP 192.168.255.35 FTM (”TRS”) DSP 192.168.255.129 192.168.255.142 10.10.10.1/29 10.1.1.2/29 Iub :Port to Iub interface LGM :Port to local management Trans :Port to transport interface SERDES :Port to SFP module, optical ethernet xxx.yyy.zzz.www: private address xxx.yyy.zzz.www: public address that needs to be planned • 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 23 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 23
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System Architecture
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&M address in IADA Iub VLAN 24 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 24
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System Architecture
BTS O&M IP flow Flexi BTS I-HSPA Adapter FCM: 192.168.255.1 OMU: 192.168.255.143 public IP Address 2 public IP Addresses L2 L2 switc Public IP switc h address in BTS h O&M subnet UP: 192.168.255.xxx DSP: 192.168.255.142 Public IP {FSP private IP} public IP Address address in external transport subnet FTM FTM routes BTS O&M to OMU using OMU MAC address. 192.168.255.129 public IP Address OMU routes BTS O&M to FTM. - BTSOM routing - SMA 25 © Nokia Siemens Networks RA34051EN02GLA0 SMA = Site Management Agent RA34051EN02GLA0 25
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System Architecture
Outline • I-HSPA Network architecture • I-BTS hw/sw and physical connections • Internal VLANs and IP addressing principles • Transport reference configurations and IP addressing examples – IP over Ethernet (IPoE) – IP over ATM (IPoA) • Synchronization configurations • Interfaces and Protocols 26 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 26
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System Architecture
I-HSPA BTS Reference Configurations (IPoE, Flexi) Option 1: IPoE using IADA Ethernet port, Flexi Iub Flexi I-HSPA BTS Adapter to/from external transport network Option 2: IPoE via FTM Ethernet port (FTIB), Flexi Flexi Iub to/from external transport network I-HSPA BTS + FTIB Adapter (except FIIB) FTIB ToP modul e L2 switch FIIB FTIB FTCC + FIIB 27 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 27
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System Architecture
I-HSPA BTS Reference Configurations (IPoE, Ultra) Option 1: IPoE using IADA Ethernet port, Ultra Iub I-HSPA to/from external Ultra BTS AXC + IFUH Adapter transport network 28 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 28
29.
System Architecture
Configurations when L2 is Ethernet (IPoE) • 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 I-BTS Flexi ADA OMU I-BTS Flexi ADA OMU Configuration Option 1 Configuration Option 2 Eth Eth Eth Eth Port#0 Port#1 Port#0 Port#1 (Iub) (Transport) (Iub) (Transport) DSP DSP Iub’ Iub’ 3G BTS Flexi 3G BTS Flexi FTIB FSP FSP Eth FSP FTxx FSP Eth FSP BTS FSP BTS Switch Switch FTM (any Ftxx module) ToPA System Module System Module • I-BTS Flexi: the I-HSPA Adapter (ADA) is I-BTS Ultra connected to the WCDMA BTS, i.e. FTM sub- 3G BTS Ultra ADA module L2 Switch via ADA L2 Switch. Two AXC IFUH OMU configuration options are available. AXU I Iub’ W • I-BTS Ultra: the I-HSPA Adapter (ADA) is F Eth Eth Eth Port#0 Port#1 connected to IFUH unit via ADA. Only one WAM ToPA (Iub) DSP (Transport) configuration option is available. 29 © Nokia Siemens Networks RA34051EN02GLA0 FTM Module required for O&M functionality, even if IADA Ethernet port is used for external transport. RA34051EN02GLA0 29
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System Architecture
IPoE Transport Ref Config #1 I uC M SC O& P Gn UP 30 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 30
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System Architecture
I-BTS Flexi IPoE Configuration Option 1 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. U/C/M Plane frames ADA OMU OMS DL ToP frames Eth MSC UL ToP frames Eth Port#0 (Iub) Port#1 Internal Iub’ frames (Transport) SGSN DSP GGSN Internal Iub’ 3G BTS Flexi SAS FTxx L3 router RNC ??? IP/Eth I-BTS BTS Switch FSP System Module ToP Master 31 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 31
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System Architecture
IPoE Transport Ref Config #2 Access site Public network Core site MGW MSS OMS I-BTS 1 Flexi BTS Adapter C FCM OMU IuP VPN GW SAS IP/Ethernet Operators Core FTM with DSP Network ToP slave Core site router With/without IPSec ToP Master I-BTS 2 FCM OMU FTM with GGSN DSP ToP slave . RNC SGSN . . 32 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 32
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System Architecture
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 ADA OMU OMS DL ToP frames Eth MSC UL ToP frames Eth Port#0 Port#1 Internal Iub’ frames (Transport) SGSN (Iub) DSP GGSN Internal Iub’ 3G BTS Flexi SAS FTIB L3 router RNC EIF3 IP/Eth I-BTS BTS Switch EIF1/2 ToPA L2 switch FSP System Module ToP Master FTIB functions as a L2 switch only! 33 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 33
34.
System Architecture
FIIB Card in I-HSPA mode (from Sys Arch slides, edited) Features: • 2 FE (10/100Base-TX) Clock • 1 GE (SFP) IF1 L In (1..4) . • 4 E1/T1 supported in I-HSPA ATM transport mode . • IEEE 1588 (ToP) INT Quad XFRM . . • 1.1 Gbps System Interface TRS_CLK LIU OVP . . SPI IF4 IDT82V2084 • Only in I-HSPA mode EM must support the enabling of EIF3 and additionally one of EIF1or EIF2; it is not possible to support both EIF1 and EIF2 at I2C I2CMUX EEPROM EMB the same time PCA 9544 T°C • EM has to allow to configure “Transport Address and QoS”, “ToP”, “BTS Routing” and “DCN Routing” as well as “IP Filtering” in I-HSPA mode. No SFP EIF1 FE changes to the input masks are needed compared receptacle to non I-HSPA mode GE SGMII Ethernet • The I-HSPA transport interface should be connected Switch EIF2 XFR to EIF3. The operator can choose either to use the 88E6097 OVP EIF3 optical interface or an electrical interface to connect the transport network; the operator should not use MII VLAN 1108 and 1109 for I-HSPA traffic or ToP traffic on the transport network. For outdoor ToP connection the same cable type used to connect ACS/9550SRAM ADA to FCM should be used to connect ADA to EIF3 3.3 V NOTE: only Eth • “ToP” has to be allowed to be used as Sync source switch, no IP routing! 34 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 34
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System Architecture
I-BTS Ultra IPoE Configuration 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 3G BTS Ultra ADA OMU No NAT required AXC DCN NAT required Public IP IFUH Iub AXC Iu IP/Eth WAM WAM WAM Top Client Top Master DSP sends packets to OMU’s public IP Top Master WAM DCN All these must use the same source private IP 192.168.254.140 Public IP Top traffic, IP forwarding & NAT in OMU in both directions DCN traffic terminated in AXC & WAM, IP forwarding in OMU in both directions, no NAT Control & management planes terminated in OMU User plane terminated in DSP No embedded support for ATM transport with I-BTS Ultra is provided. 35 © Nokia Siemens Networks RA34051EN02GLA0 ToP implementation details for IADA + IFUH: NAT (Network Address Translation) required for ToP traffic to translate ToP client’s private IP address to OMU’s public Iu address and vice versa. IP forwarding & NAT only for ToP traffic because ToP client must use the same IFUH’s private IP address 192.168.254.140 as U/C/M planes due to IFUH implementation restrictions. ToP synchronization packets use always UDP port 319 and other ToP packets port 320 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 319/320 to OMU’s public IP (192.168.254.140 OMU’s IP in IP packet source address field) •in DL map all traffic to UDP port 319/320 with destination IP 192.168.254.140 (OMU’s IP 192.168.254.140 in IP packet destination address field) IADA commissioning phase is as with I-BTS Flexi. RA34051EN02GLA0 35
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System Architecture
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 Shared Antenna – IP QoS Shared Mast Head Amplifiers Shared feeders RNC Iur Iub/Native IP I-HSPA Adapter GGSN Gn 36 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 36
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System Architecture
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 for trunk connectivity using “ATM over Ethernet” technology – Remaining interfaces can be used to e.g. aggregate Ethernet traffic from other 3G BTS or 2G BTS [RU10 study item] 37 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 37
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System Architecture
IP addressing example, three BTSs in the same L2 domain (IPoE) I-BTS Flexi # 1 I-BTS Flexi # 2 I-BTS Flexi # 3 WCDMA Flexi BTS WCDMA Flexi BTS WCDMA Flexi BTS WBTS #1 WBTS #2 WBTS #3 Subnet Subnet Subnet 10.10.1.0/28 10.10.1.16/28 10.10.1.32/28 TRS IP TRS IP TRS IP 10.10.1.1 10.10.1.17 10.10.1.33 NOTE: BTS IP BTS IP BTS IP IADA BTSOM IP 10.10.1.2 10.10.1.18 10.10.1.34 address is IADA BTSOM IP IADA BTSOM IP IADA BTSOM IP „physically“ in OMU. 10.10.1.3 10.10.1.19 10.10.1.35 IADA-1 IADA-2 IADA-3 OMU: .1 SIGTRAN IP OMU: .3 SIGTRAN IP OMU: .5 SIGTRAN IP DSP: .2 10.20.1.1 DSP: .4 10.20.1.3 DSP: .6 10.20.1.5 IADA subnet 10.20.1.0/28 L2 switch L2 switch .14 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 … external transport network 38 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 38
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System Architecture
Outline • I-HSPA Network architecture • I-BTS hw/sw and physical connections • Internal VLANs and IP addressing principles • Transport reference configurations and IP addressing examples – IP over Ethernet (IPoE) – IP over ATM (IPoA) • Synchronization configurations • Interfaces and Protocols 39 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 39
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System Architecture
I-HSPA BTS Reference Configuration (IPoA) IP over ATM (IPoA) ATM over PDH/SDH in FTM Flexi Iub I-HSPA FTM to/from external transport network BTS Adapter This connection uses the same GigEth connection as Iub between IADA and System Module 40 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 40
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System Architecture
IPoA Transport Ref Config 41 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 41
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System Architecture
I-BTS Flexi IPoA Configuration ATM transport option is via FTM sub-module: ADA Eth • Iub‘ internal interface is via ADA L2 Switch Port#0 ADA L2 Switch Port#1 ADA L2 Switch Port#0 • External interfaces (e.g. Iu/Iur) are via FTM module port; Iub’ Ethernet transport option is via ADA (IHSW-33): • Iub‘ internal interface is via ADA L2 Switch Port#0 SDH/PDH • External interfaces (e.g. Iu/Iur) are via ADA L2 FTM Port BTS Switch Port#1. Switch FTM Module (e.g. FTPB) • ToP feature is not supported. FSP System Module ATM data flow 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 IP/ATM and IP/Ethernet transport options cannot be simultaneously active! 42 © Nokia Siemens Networks RA34051EN02GLA0 In earlier versions of documents FTIB was not allowed with IPoA. However, FTIB has been since tested out successfully in lab with IPoA. RA34051EN02GLA0 42
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System Architecture
Example: Iur control plane over IP/Ethernet over ATM between Adapters Adapter 1 In all Adapter external interfaces, OMU except toward BTS, also ATM transport Adapter 2 OMU is available, but then BTS’s “FTM” module is used for this. Method is same for all interfaces (as presented within this case). RNSAP’ RNSAP’ SCCP SCCP M3UA M3UA SCTP SCTP ADA – ADA connection IP IP UDP Transport module 1 Transport module 2 UDP IP UDP AAL5 AAL5 UDP IP ADA – FTM ADA – FTM internal IP ATM ATM IP internal Ethernet connection connection Ethernet Ethernet L1 L1 Ethernet L2 L2 L2 L2 switch switch Iur over switch switch 43 © Nokia Siemens Networks RA34051EN02GLA0 ATM Note: not possible for ultra RA34051EN02GLA0 43
44.
System Architecture
I-BTS Flexi: 3VCCs for Iu, Iur/Iur* and DCN (UL direction) OMU [RNC Application] FTM Public: 130.1.0.101 130.2.0.101 over UDP port#1002 to 192.168.255.129 MAC connection to CN (i.e. Iu- Iu-PS CP PS CP, Iu-CS CP, Iur/Iur* DEST: 130.2.0.101 FTM Iu-CS CP CP, DCN) Iur/Iur* CP UDP port#1002 DCN Private: 192.168.255.143 BTS internal network including ADA Port#5 (L2 Switch) DEST: 130.2.0.201 Iu-PS UP UDP port#1011 Port#4 (L2 Switch) DSP DEST: 130.2.0.201 Iur/Iur* UP 130.2.0.201 over UDP port#1011 to 192.168.255.129 MAC Public: 130.1.0.201 UDP port#1010 FTM connection to CN (i.e. Iu- FTM is not IP PS UP, Iur/Iur* UP) router, it just Private: Private: 192.168.255.142 130.2.0.201 over UDP port#1010 to 192.168.255.129 MAC forwards IP 192.168.255.129 FTM BTS internal network packets from including ADA VCC to L2 switch and adds OMU AA0 Iu-PS/Iu-CS/Iur/Iur* CP, DCN UDP Port: 1002 VP=xx/VC=yyy UDP/IP layer ADA (i.e. DSP/OMU [RNC FTM Appl] selects the correct UDP ATM0 Iu-PS UP UDP Port: 1011 VP=xx/VC=yyy port so that traffic will be DSP forwarded to the correct VCC ATM1 Iur/Iur* UP UDP Port: 1010 VP=xx/VC=yy 44 © Nokia Siemens Networks RA34051EN02GLA0 RA34051EN02GLA0 44
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