01 introduction
DESCRIPTION
ILXTRANSCRIPT
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UA07 WCDMA IP in UTRAN DescriptionTMO18277 Edition 1
Section 1Introduction
WCDMA 9300UA07 WCDMA IP in UTRAN Description
TMO18277 Edition 1
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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Module Objectives
� Upon completion of this module, you should be able to:
� Describe what is the scope of IP in UTRAN in UA07
� Explain the principle of IuboIP, IuCSoIP, IuPSoIP, IuRoIP features
� Describe the hardware impacts
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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Module Objectives [cont.]
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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Table of Contents
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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Table of Contents [cont.]
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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1 Features Presentation
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WCDMA 9300 � UA07 WCDMA IP in UTRAN DescriptionIntroduction
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1 Features Presentation
1.1 Introduction
� In UA05, all the interfaces are carried over ATM
� ATM backbone is used for all the control plane and user plane
� IP is used only for OAM
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1 Features Presentation
1.1 Introduction
� In UA06, the IP Evolution
Nodes B
Node B
Iub
Iub Iu-PS
Iu-CS
Iur
RNC
RNCCSCN
PSCN
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1 Features Presentation
1.1 Introduction
� The evolution is to replace completely the ATM transport network by an IP transport network.
� It is the scope of the UA07.1 release
� The UA07.1 release will provide the possibility to use only the IP transport network on all the interfaces with the following features:
� Native IP Iub Support
� RNC Support for IuCS over IP
� RNC Support for IuPS over IP
� RNC Support for IuR over IP IP Network
NodeBRNC
SGSN
Physical Layer
Ethernet
IP
Control Plane User Plane
RNC
SR
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1 Features Presentation
1.1 Introduction
� In UA07, all the interfaces are carried over IP
Nodes B
Node B
Iub
Iub Iu-PS
Iu-CS
Iur
RNC
RNCCSCN
PSCN
RNSAP
SCCP
M3UA
SCTP
IP
Ethernet
SCCP - SAP
UDP
IP
Ethernet
RTP/RTCP
Iu UP
Control Plane User Plane
Control Plane
User Plane
Ethernet
IP
UDP
IuB FP
Ethernet
IP
UDP
IuB FP
Ethernet
IP
SCTP
NBAP
Control Plane
User Plane
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1 Features Presentation
1.2 Native IP Iub Overview
�FEATURE DESCRIPTION
� Full IP transport on Iub : no ATM at all, no
pseudowires
� 3GPP Compliant Protocols : SCTP/IP in
Cplane, UDP/IP in Uplane
� Co-existence of ATM, Hybrid and IP NodeBs
on a given RNC
� IP and Ethernet QoS supported
� Node B synchronization : IEEE1588v2 (PTP)
�FEATURE VALUE
� OPEX reduction by using lower cost IP
transport
� Seamless migration to IP
� IP Carrier Grade
�DEPENDENCIES
� 4ptGigE card in RNC
� xCCM in BTS optionally with GE MDA
� External IEEE1588v2 server (or alternative
synch method)
� Ethernet switch/IP router for layer 2
transport architectures
IP / Ethernet
RNC Node B
IEEE1588 server
SR
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1 Features Presentation
1.3 IuCS over IP Overview
� FEATURE DESCRIPTION
� 3GPP Compliant Protocols Simultaneous
support for ATM and IP stacks on Iu-CS
� Homogeneous transport for UP and CP only
(full IP or full ATM)
� Iu-CS Flex (ATM and IP Iu-CS instances)
� IP and Ethernet QoS support
� FEATURE VALUE
� OPEX savings through use of cheaper IP
transport
� Seamless migration
� IP Carrier Grade
� DEPENDENCIES
� 4ptGigE card in RNC
� Ethernet Switch / IP Router for layer 2
transport architectures
ATM transport
IuCS Pool
IP transport
MSC
MGW
MSC
MGW
MSC
MGW
SR
RNC
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1 Features Presentation
1.4 IuPS over IP Overview
� FEATURE DESCRIPTION
� 3GPP Compliant Protocols Simultaneous
support for ATM and IP stacks on Iu-PS
� Homogeneous transport for UP and CP only
(full IP or full ATM)
� Iu-PS Flex (ATM and IP Iu-CS instances)
� IP and Ethernet QoS support
� FEATURE VALUE
� OPEX savings through use of cheaper IP
transport
� Seamless migration
� IP Carrier Grade
� DEPENDENCIES
� 4ptGigE card in RNC
� Ethernet Switch / IP Router for layer 2
transport architectures
ATM transport
IuPS Pool
IP transport
SGSN
GGSN
SGSN
GGSN
SGSN
GGSN
SRRNC
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1 Features Presentation
1.5 Iur over IP Overview
�FEATURE DESCRIPTION
� Full IP transport on Iur : no ATM at all,
no pseudowires
� 3GPP Compliant Protocols
� Simultaneous support for ATM and IP
Drift RNCs (i.e. Iur instances)
� Homogeneous transport for UP and CP
only (full IP or full ATM)
� IP and Ethernet QoS supported
�FEATURE VALUE
� OPEX reduction by using lower cost IP
transport
� Seamless migration to IP
� Carrier Grade IP
�DEPENDENCIES
� 4ptGigE card in RNC
� IP Drift RNCs
� Ethernet switch/IP router for layer 2
transport architectures
IP / Ethernet
RNC
RNC
RNC
RNC
SR
SR
SR
SR
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1 Features Presentation
1.6 IP backbone
�The IP backbone has to fulfill the following requirements:
� It is not necessarily fully dedicated to the UTRAN
� Ipv4 backbone
� DiffServ Capable for the QoS Management
RNC
NodeB
AggregationNetworkBackhauling
Note: The IP backbone is not in the scope of this training
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1 Features Presentation
1.7 RNC Connection to the IP Backbone
� The RNC is connected to an IP backbone through a 7750 SR
� It is a layer 3 access router providing IP routing, DiffServ forwarding and L3 Carrier Grade.
� For redundancy purpose, this Service Router may be duplicated
RNC
IP Network7750 SR
ATM Network
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1 Features Presentation
1.8 NodeB Connection to the IP backbone
There are 3 ways to connect the NodeB to the IP backbone:
� An Ethernet Access Module (EAM) can be added in front of the Node B and an Ethernet Access Termination (EAT) in front of the RNC to access an Ethernet backbone only (using ATM pseudowires for ATM transport). In the Alcatel-Lucent global solution, EAM is a SAR7705 and EAT is a SR7750.
� the xDSL access can be used also for IP/Ethernet
� An Ethernet access can be used in addition to the existing connection to the ATM backbone
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2 Hardware Impact
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2 Hardware Impact
2.1 RNC Hardware
� New cards must be added to support the IP transport features
� The RNC must be equipped with 2 GigE 4 ports cards.
This card provide 4 GigaEthernet ports supporting the following interfaces:
� 1000BaseLX
� 1000BaseSX interfaces
� The 4pGe card has an operating capability of full data line rate (1 Gbit/s) for each port, however, the aggregated backplane interface throughput for the four ports is 2.5 Gbit/s.
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2 Hardware Impact
2.2 RNC Hardware
� The 4ptGE cards routes IP packets from the RNC cards to the Network Elements (Node B and SGSN). They provide:
� Traffic management: QoS Mapping , Buffer Management, Queuing and Congestion Control, Scheduling, DiffServ Capable
� VLAN Support: to separate the traffic
� Defense Mechanisms with PDR (Protected Default Route) to spare the Layer 3 routing
RNC
4ptGE
4ptGE
PSFP
.
.
.
RAB
CP
INIP Network
SGSN
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2 Hardware Impact
2.3 RNC Hardware
� The 4pGigE cards must go in slots 14 & 15.
� If not present in the RNC, any PSFP / DCPS cards in slots 14 & 15 must be replaced by the two 4pGigE cards.
This is illustrated in the following figure:
PS07
PS06
PS05
PS04
PS03
PS02
CP01
CP00
PS13
PS12
PS11
PS10
OC309
OC308
CARD CAGE 1
CARD CAGE 2
PS15
PS14
GigE*15
GigE*14
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2 Hardware Impact
2.4 BTS
� The xCCM board is in NodeB
xCCM-U front panel
RJ-45 Fast Ethernet Port 2 will be used for Hybrid Iub IP connectivity
Embedded 4 E1/T1 ports
Embedded 4 E1/T1 ports
MDA 4 E1/T1 ports orGiga Ethernet
xCCM front panel
� The xCCM-U board is included in the d2U unit with2 xCEM-U
� New MDA can be plugged on the xCCM mother board
� to have a Gigabit Ethernet interface for Iub
MDA 4 E1/T1 ports orGiga Ethernet
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2 Hardware Impact
2.5 IP Backbone
� The UTRAN IP backbone and the CN IP backbone are supposed to be a level 3 or level 2 network with IPv4 addressing, IP (or IP/MPLS) routing and DiffServ forwarding.
� It is supposed to be secured and transparent : IP packets shall be conveyed without any modification of the UDP/IP headers because IP addresses and UDP ports are used as bearer identifiers.
� No NAT
IP Network
ATM NetworkNodeB
RNC
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End of ModuleUA07 WCDMA IP in UTRAN Description