Broadband Lte Sae Update

8/6/2019 Broadband Lte Sae Update

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Nokia Siemens Networks expects five

billion people to be connected to theweb and a 100-fold traffic increase in

the networks by 2015. Wireless access

to the Internet will be in step with

wireline access. Access via mobile

phone supporting enhanced data

applications will complement notebook

based usage. Wireless networks will be

used to extend broadband penetration

beyond the reach of wireline networks.

More and more user communities will

enjoy multimedia services, driving total

bandwidth demand. This affords

mobile network operators a businessopportunity they can capitalize on by

improving their networks performance

and efficiency.

With a view to taking the next step up

the evolutionary ladder beyond HSPA,3GPP Rel8 has standardized a

technology called Long Term Evolution/

System Architecture Evolution (LTE/

SAE). It is designed to

Makethemostofscarcespectrum

resources: Deployable in paired and

unpaired spectrum allocations with

bandwidths ranging from 1.4 MHz

to 20 MHz, LTE/SAE offers up to

fourtimesthespectralefciency

of HSDPA Release 6

Affordusersanexperienceonpar with todays best residential

broadband access: LTE/SAE

delivers peak user data rates

ranging up to 173 Mbps and

reduces latency to as low as 10 ms

Leverageatall-IPnetwork

architecture and a new air interface

tosignicantlycutper-Mbytecosts,

with later product innovations

improving performance even further:

For instance a 4x4 Multiple Input/

Multiple Output (MIMO) scheme

will boost downlink data rates upto 326 Mbps

Nokia Siemens Networks takes a cost-

effective approach to introducing LTE/

SAE, enabling GSM-/WCDMA-, CDMA-,

and greenfield network operators to

grow their business and margins in

the fast-approaching era of ubiquitous

mobile broadband.

Executive Summary

Contents

02 Executive Summary

03 Background

04 Market drivers and expectations

05 User benefits

06 Operator expectations

08 System approach

09 Standardization of the LTE air

interface and enhanced packet

system

10 Optimizing total value ofownership with Nokia Siemens

Networks LTE/SAE

14 Conclusions

15 Abbreviations

15 References

2 Network Evolution LTE/SAE


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The Internet has changed many

peoples lives in the last decade.Services delivered across the web

now supplant many offline processes.

The Internet has become a major

delivery platform for text, music, video,

and other multimedia content. All this

has spurred broadbands growth. With

broadband adoption outpacing cellular

voice, Nokia Siemens Networks predicts

that five billion people will enjoy Internet

access by 2015 and traffic in the

networks will increase 100-fold.

Whats more, mobile broadband is

tracing mobile telephonys trajectory,

becoming a widespread service to be

enjoyed by the user anywhere, anytime.

More and more people are embracing

mobile broadband and enjoying data-

heavy video and other multimedia

content. This coincidental development

presents a promising business

opportunity for network operators,

who responded by launching HSDPA

and flat rates in 2006, attracting many

business users. And while this user

segment may be small compared to

the huge consumer market, overall

mobile data traffic grew up to 400%

within 6 months after service

introduction in many networks.

Mobile broadband users will expect

services, data rates, VoIP and multimediacapabilities similar to those enjoyed

by fixed broadband users today, at

affordable prices. This is why NGMN

Ltd., a group of globally active mobile

operators determined to match DSL

offerings performance and cost, has

raised the bar for the next generation

of mobile networks (NGMN) and

described their requirements in a

white paper [1]. Seeking to satisfy

these demands, Nokia Siemens

Networks and its parent companies

participated in the Long Term Evolution

(LTE) and System Architecture Evolution

(SAE) studies conducted by the Third

Generation Partnership Project (3GPP).

LTE/SAE aims to improve performance

and cost-efficiency with a more efficient

air interface, more flexible use of radio

spectrum, and flat, packet based

network architecture. The ultimate

goal is to enable wireless broadband

communication commensurate with

DSL in fixed networks.

The study phase of 3GPP work on

LTE and SAE ended in mid-2006,

transitioning to the specification phase

for the new radio access system (LTE)

and the enhanced packet-based core

network (SAE).

3GPP plans to complete the first set

of specifications by the end of 2008,

enabling friendly user trials in 2009

and the first commercial network

rollouts at the beginning of 2010.

Background

3Network Evolution LTE/SAE


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While many consumers have no

particular interest in technology, they

do expect unimpeded access to theInternet and personalized services,

at anytime and in any place.

Todays residential broadband access

shapes consumers expectations of

Internet access and their perceptions

of network performance.

This perceived network performance,

in turn, is formed by a blend of the

peak user data rate, average user

throughput, cell throughput, signaling

delays, and user data latency. Oneof the keys to differentiating mobile

products is boosting perceived mobile

broadband performance.

User benefitsAdvances in technology

Optimizing digital signal processing

algorithms and advances in antenna

technologies will push the air interfaces

spectral efficiency ever closer to its

theoretical limits.

Improved IP transport (pervasive

Gbit Ethernet) and QoS assurance

technologies boost packet-centric

networks data and voice performance,

efficiency and carrier-grade reliability.

Together with advances in IP

integration in network equipment and

implementation of spectrally efficient

VoIP techniques, this all will soon make

the all-IP vision a reality. LTE/SAE

enables operators to implement all

services on a single IP-centric, purely

packet based network. This will makeIP applications as genuinely mobile

as voice is in todays mobile networks.

These advances, alongside a simplified

architecture, will also reduce

operational expenditures and,

consequently the networks lifecycle

costs.

Figure 3 compares LTE/SAEs peak

data rates, average cell throughput,

VoIP capacity and latency with earlierWCDMA/HSPA releases. On the

physical layer, LTE/SAE with 2x2

MIMO delivers peak downlink data

rates ranging up to about 173 Mbps,

and even 326 Mpbs with 4x4 MIMO.

Coexistence, interoperability, roaming,

and handover between LTE/SAE and

existing 2G/3G networks and services

are inherent design goals, so full mobility

support is given from day one.

min. max.

U

Downlink

Uplink

Maximum peak data rate *

Average cell throughput

(marco cell, 2x20MHz or equivalent) *

Latency (Roundtrip delay) **

LTE

HSPAevo

(Rel 8)

GSM/EDGE

0

HSPA Rel6

20 40 60 80 100 120 160 200 ms

HSPA R6 HSPAevo

(2x2 MIMO

+ 64QAM)

LTE

(4x4 MIMO/

64 QAM)

LTE

(2x2 MIMO/

16 QAM)

HSPA R6

4 carriers,

each 2x5MHz

2x5MHz

2x5MHz

2x20MHz

2x20MHz

4 carriers,

each 2x5MHz

1 carrier,

2x20MHz

1 carrier,

2x20MHz

LTE

(4x4/1x4

MIMO)

HSPAevo

Rel8

LTE

(2x2/1x2

(MIMO)

0

40

50

20

10

30

Mbps/cell

60

70

0

100

300

350

200

50

150

250

Mbps

DSL (~ 20 - 50 ms, depending on operator)

180140

** Server near RAN

Downlink

Uplink

Downlink

Uplink

VoIP capacity *

HSPA R6

0

20

60

70

80

40

10

30

50

Calls/MHz/Cell

LTE FDD

* LTE values according to Nokia and Nokia Siemens Networks

simulations for NGMN performance evaluation report V1.3

(marco cell, full buffer, 500m ISD, pedestrian speed)

Figure 3: Comparison of throughput (maximum, typical) and latency: LTE shows excellent performance



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Service provisioning

Recent surveys indicate that user

expectations are difficult to predict

over the long-term. In reality, analysts

expect services to become a short-term

business offering. This means operators

need to consider:

Themeanstocreatehighly

personalized services, and deliver

every type of service, including

end-user self-provisioning

Individualsupportforeverytypeof

access based on a common servicecontrol and provisioning platform

Animproveduserexperience

for every service offering and

diversiedofferings,including

exibleservicebundlingacross

all breeds of access

Simpleandtransparentbilling

procedures which foster

subscriber loyalty

Asset reuse

When introducing new network

technologies, operators expect that their

existing investment will be protected

and that deployed infrastructure can be

re-used to the greatest possible extend.

The main focus is thereby directed to

topics representing a major part of

operators total cost of ownership,

such as:

DeploymentofLTEonexisting

sites and sharing of common

infrastructure (e.g. antenna masts;site infrastructure like power supply,

air conditioning, and security

equipment; feeder cables and even

antennas)

Sharingofbackhaulingequipment

between LTE/SAE and existing

network technologies provided

at the same site

Commonnetworkmanagement

platforms

Dependingontheimplementation

of existing network elements, the

upgradability of their HW platforms toLTE/SAE or even a sharing of parts

of the network element HW platform

with existing 2G/3G technologies

offers opportunities for CAPEX and

OPEX savings.

Size of the ecosystem

Mobile systems based on 3GPP

standards represent with a market

share of more than 85% by far the

greatest ecosystem in the mobileindustry, which provides enormous

cost advantages to operators and

end users:

Ahugevarietyofdifferentterminals,

starting from simple and cheap

voice only terminals up to real

multimedia terminals

Costbenetsforterminalsand

network infrastructure products due

to the huge quantity of produced

products and the amount of different

vendors offering such products.

Operators expect that this huge

ecosystem can be leveraged forLTE/SAE as most terminals will

be UMTS/LTE or GSM/UMTS/LTE

multimode terminals offering cost

advantages from the common terminal

platform and production quantities.

Interworking with and

migration from non-3GPP

radio access systems

Optimal interworking with existing

GSM/WCDMA networks, includingservice continuity when roaming

between LTE/SAE and such networks,

is a natural expectation of operators

and inherent design goal for the LTE/

SAE standard. However, operators of

non-3GPP radio access systems, like

CDMA, also expect an easy evolution

of their networks to LTE/SAE, in order

to benefit from the scale of the 3GPP

ecosystem representing more than

85% market share in the mobile industry.

3GPP acknowledged this need by

specifying an improved interworkingbetween LTE/SAE and non-3GPP radio

access systems. In particular the

standard supports seamless mobility

and handover between LTE and

CDMA2000.



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Standardization of theLTE air interface andenhanced packet system

3GPP (3rd Generation Partnership

program) is standardizing the LTE/SAE

system for their Release 8.

Their RAN working groups started LTE/SAE standardization in December 2004

with a feasibility study for an evolved

UTRAN and the System Architecture

Evolution (SAE) for the all IP based,

flat core network architecture. This

was transformed into the Work Item

phase in June 2006. In December

2007 all LTE functional specifications

(stage 2) were finished. SAE functional

specifications reached major milestones,

both for interworking to 3GPP and

CDMA networks.

Now 3GPP working groups are working

hard on finishing all protocol (stage 3)

and performance specifications.

It is expected that all LTE/SAEspecifications will be finished by

end of 2008, the specification of the

physical layer of the air interface

(forming the basis of the chip design)

for the FDD mode of operation by

mid-2008 already.

NACK

Rx Buffer

ACK

Combined

decoding

2

1

2

Hybrid ARQ

1

64 QAM

Modulation

Short TTI =1 ms

Transmission time interval

DL: OFDMA UL: SC-FDMA

scalable Fast Link Adaptation

MIMO

Channel RXTX

RXTX

Available bandwidth

...

Frequency

OFDMsymbols

Sub-carriers

...

Guard

intervals

TimeAdvanced Scheduling

Time & Frequency

(Frequency Selective Scheduling)

Figure 6: The beauties of LTE

Channel only changes amplitude and phase of sub-carriers



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Optimizing total value ofownership with NokiaSiemens Networks LTE/SAE

LTE/SAE will provide a mobile multimedia

network that delivers broadband wireless

services with fixed-line quality and the

cost efficiency of IP technologies. Nokia

Siemens Networks leverages leading

architectural and systems expertise to

allow operators to seamlessly evolve

their networks to LTE/SAE.

Nokia Siemens Networks has ample

experience in implementing andupgrading complex system architectures.

The company is committed to enabling

smooth migration, and is preparing its

products to accommodate LTE/SAE

technology. The track record of Nokia

Siemens Networks in efficient system

migration includes:

EasyintroductionofEDGE

without system downtime

HSPA(HSDPAandHSUPA),where

a software download upgrades the

entire installed base Combined2G/3Gnetworksenabling

smooth migration from 2G to 3G and

ensuringcost-efcientoperations

TheSGSNandGGSNforthepacket

core, which today can handle both

2Gand3Gtrafc

For many years, Nokia Siemens

Networks and its parent companies

have driven radio access and network

technology innovation by:

Participatingininternational

research programs

Pursuingmanyjointresearch

activities in these areas with diverse

industry and academic partners

Driving3GPPseffortstostandardize LTE/SAE

The worlds first live demonstrations of

the LTE air interfaces capabilities at

the 3G World Congress in Hong Kong

in December 2006 and 3GSM World

Congress in Barcelona in February

2007 underscore Nokia Siemens

Networks leadership in LTE/SAE.

In this demonstration (refer to figure 7)

a High Definition Television (HDTV)

video was sent with a peak data rate of

160 Mbps over an air interface based onthe preliminary LTE specifications and

handed over in real time to an HSPDA

air interface.

Video applicationIMS client

Multimode UE

MIMO

Access

IPv6

luB

IPv6

eNode B

HSPANode B

Core

IMS(control node and AS)

Access Gateway(packet core)

Services

Video application(IMS-controlledvideo supervision)

Video application(Real-time videostreaming HDTV)

Figure 7: Nokia Siemens Networks` LTE demonstrator: First live NGMN air interface

with applications and interworking with legacy 3G system service continuity in one equipment



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Further Nokia Siemens Networks initiated

together with Nokia and six other vendors

and operators the so-called LTE-SAE

Trial Initiative (LSTI). The goal is to early

demonstrate the capabilities of LTE/

SAE through performing a series of

joint tests including radio transmission

performance tests, early interoperability

tests, field tests and full customer trials

(refer to figure 8). By giving early feed-

back about the LTE-SAEperformance and interoperability to

standardization and industry, the time

for commercial product availability is

expected to be significantly reduced.

In the meantime further operators,

terminal- and chipset vendors joined

the group, which is open to any

organisation that is committed to

actively contribute to above goals.

Nokia Siemens Networks drives LSTI.

Schedule & Program Office Activities:

Trials

PR

Interoperability

Proof of Concept

20102007 2008 2009

Test of OFDM Air Interface

Test of basic functions

Friendly customer trials

Public Relation work

IODT

IOT

Figure 8: LSTI program and schedule

The first proof of concept tests on

physical layer performance of the LTE

air interface (performed independently

by several companies) where already

finished by the end of 2007 and

successfully demonstrated that the

physical layer of the LTE air interface

specifications can be implemented and

fulfils the performance expectations.

In December 2007 Nokia Siemens

Networks demonstrated LTE in a multi-

user field trial under realistic urban

deployment scenarios in the center of

Germanys capital Berlin, reaching with

a 2x2 MIMO antenna system peak

data rates of up to 173 Mbps and still

more than 100 Megabits per second

over distances of several hundred

meters (refer to figure 9). This trial

also successfully demonstrated that

future LTE networks can run on

existing base station sites.

An operators strategy for gaining the

competitive edge in mobile broadband

builds on three fundamental insights:

Thekeytosustainingfastsubscriber

growth is being part of a large

ecosystem that accommodates

many different as well as the

latest user devices, as is evident

from the recent churn from

CDMA to GSM networks. GSM/

WCDMA is by far the largest

mobile communications ecosystem

worldwide.

Oncetrafcattainscriticalvolume,

there is only one way to achieve

cost-efcientscalenetworkcapacity

viaatnetworkarchitectureand

Ethernet based transport network.

Untilnow,xedbroadbandnetworks

provided the blueprint; now I-HSPA

(Internet-HSPA)introducesat

architecture to cellular networks.

Ubiquitousmobilebroadband

demands optimum use of scarce

spectrumresources,cost-efcient

networks, and high network

performance as perceived by users.

600 m

900 m

300 m

120 Mbps

100 Mbps80 Mbps

60 Mbps

40 Mbps

20 Mbps

DLink

MIMO/SIMO

eNB Site: HHI Building

Figure 9: Nokia Siemens Networks multi-user LTE field trial in the

centre of Berlin



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Operatorsrunning2Gnetworks

(GSM/GPRS) can introduce LTE/

SAE directly or via one of the above

WCDMA/HSPA paths, depending

on their timetables for introducing

mobile broadband services and

the spectrum they have available.

Because LTE supports bands assmall as 1.4 MHz, spectrum may be

re-farmed smoothly and gradually

from GSM to LTE.

CDMAoperatorscanintroduceLTE/

SAE networks directly or follow one

of the above paths. GSM/EDGE

may be a good choice for strategies

more immediately focused on voice

centric business. The same applies

to Greenfield operators. Operators

opting to take the I-HSPA path

can capitalize on the ecosystem

of HSPA terminals, benefit from

the flat architecture today, and

quickly optimize mobile broadband

performance.

OperatorswithTD-SCDMA

networks, which are currently

deployed in China only, will probably

migrate directly to LTE, preferably

using the TDD mode of LTE.

LTE

TD-SCDMA

CDMA

Enabling flat broadband architectureGSM/WCDMAhandset base

GSM/

(E)GPRS

WCDMA/HSPA

I-HSPA

Figure 10: The architectural evolution of existing 2G/3G networks to LTE

Nokia Siemens Networks is committed

to providing a smooth evolutionary

path for every operator, following a

roadmap that factors each operators

installed base and strategy into the

equation (see figure 10).

3GoperatorswhohavedeployedI-HSPAhaveatnetwork

architecture similar to LTE/SAE in

place,andcanthuscost-efciently

introduce LTE/SAE.

3Goperatorswithadeployed

WCDMA/HSPA network can

migrate directly to LTE/SAE.

Migratingtotheatnetwork

architecture of Internet High

Speed Packet Access (I-HSPA)

mayalsobebenecialbecause

itaccommodatesLTE/SAEsat

IP-based network architecture while

supporting legacy WCDMA/HSPA

handsets. The operator can thus

enjoy the transport and network

scalingbenetsimmediatelyand

easily upgrade the network to LTE/

SAE later.

Nokia Siemens Networks provides all

products of a mobile network end-to-end

solution using innovative technologies

and future-proof platforms:

NokiaSiemensNetworksdesigns

innovative base stations enabling

operators to flexibly upgrade to futureradio standards while reusing legacy

modules and without adding to the

footprint. This affords operators total

investment protection. One example

is the innovative Flexi-Multimode

BTS platform, designed to support

different radio standards and being

SW upgradable to LTE. It is modular,

with the flexibility required to upgrade a

2G/3G site to support LTE. To this end,

it shares LTE-ready equipment in the

RF chain the antenna, the feeder, as

well as given deployment in the same

spectrum RF modules. Different radio

standards supported at the same site

can also share the backhaul system.

Dedicated but identical hardware

baseband and control modules serve

to run the different radio standards

smoothly and independently. All this

minimizes the operators spare parts

inventory, logistics costs and

installation efforts.



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PSdomainnetworknodesconnect

multiple access technologies and

interfaces to service control and

database functions. The SGSN and

GGSN will evolve to serve as the

SAE networks MME and SAE GW.

Operators may also install SGSN-

and MME-functions on separate

physical nodes

(refer to fgure 11).

Apowerfulmeansofmigrating

all services, the IP Multimedia

Subsystem (IMS), providescommon service control.

TheNokiaSiemensNetworks

network management system

supports common operational

procedures.

These products feature high

performance technologies that

configure and adapt flexibly to suit

deployment requirements. They

also bring to the table all the benefits

of reliable carrier-grade systems.

This approach ensures cost-effective

network migration, early system

availability and stability, and protects

investments in the overall LTE/SAE

solution.

BTS

GSM

SGSN/MME

SAE Gateway

Serving

GWRNC

BSC

PDN

GW

Contentand servicenetworks

SGSN

MME HSSControl plane

User plane

PCRF

NodeB

WCDMA

eNodeB

LTE

Evolved Packet Core (EPC)RAN

Figure 11: 3GPP Rel8 LTE/SAE network architecture (simplified)

The Nokia Siemens Networks LTE/

SAE solution enables operators to cost-

efficiently introduce and run LTE/SAE:

Noadditionalsitepreparations

required: Nokia Siemens Networks

BTS platforms enable LTE radios to

be easily added to legacy equipment

without enlarging the footprint

Flexibleapproach:Ifnecessary,

operators may run LTE alongside

GSM/EDGE, WCDMA/HSPA or

other radio access systems suchas CDMA, WLAN or WiMAX

Painlessmigration:LTE/SAEfully

supports security, roaming, QoS,

and similar features

Reusableinfrastructure:Current

2G/3G applications may be used

again in LTE



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Conclusions

The evolving mobile broadband business

opportunity calls for high performance

all-IP mobile broadband networks.The motivations, requirements and the

solution based on the LTE/SAE standard

have been discussed. Several user

studies lead to the conclusion that

traffic in mobile networks will snowball

in the years ahead. The driving forces

behind this growth are:

BroadbandInternetaccessoffering

a DSL-like user experience

Ondemandvideocontentand

Web2.0 applications

Fixedvoicesubstitution Serviceconvergenceacross

multiple access technologies

While WCDMA/HSPA has made

significant strides towards efficient

mobile data and multimedia information

exchange, LTE/SAE will provide

extended network performance and

reduced cost per MB that are able

to deliver on the promise of future

broadband mobile wireless

communications.

LTE/SAE charts a natural evolutionary

course for 2G/3G operators because

it offers:

Investmentprotectionbyreusing

sites and network elements to the

maximum

Asuperioruserexperience

enhanced by high throughput and

low latency, offering rich potential

for subscriber uptake

LowcostperMBcourtesyofaat,

IP-based network architecture and

highspectralefciency,enabling

operatorstocost-efciently

introduceatrates Scalablebandwidthranging

from 1.4 up to 20 MHz, enabling

operators to exploit lower and

other economically-attractive

frequency bands where relatively

little spectrum is available, achieving

nationwide coverage at far lower

costs

As an industry pacemaker, Nokia

Siemens Networks has a clear vision

and strategy for implementing LTE/

SAE. Geared to reuse as many systemcomponents as possible, Nokia Siemens

Networks LTE/SAE solution will

enable early migration to flat network

architecture, optionally with I-HSPA as

an intermediate step. Complying fully

with the 3GPP LTE/SAE standard, this

high performance mobile broadband

network will be reliable and interoperable.

By enabling its smooth, early introduction,

Nokia Siemens Networks will optimize

the LTE/SAE solutions total value of

ownership.



15/16

Abbreviations

3GPP Third Generation

Partnership Project

AAA Authentication,Authorization, Accounting

aGW Access Gateway

AS Application Server

ASN Access Service Network

BS Base Station

BSC Base Station Controller

BSS Base Station Subsystem

BTS Base Transceiver Station

CDMA Code Division Multiple

Access

DSL Digital Subscriber Line

EDGE Enhanced Data rates

for GSM EvolutionEGPRS Enhanced General Packet

Radio Service

eNode B enhanced Node B

ePDG Evolved Packet Data

Gateway

FDMA Frequency Division Multiple

Access

FMC Fixed Mobile Convergence

FTP File Transfer Protocol

GGSN Gateway GPRS Service

Node

GSM Global System for Mobile

CommunicationsHA Home Agent

HLR Home Location Register

HSDPA High-Speed Downlink

Packet Access

HSPA High-Speed Packet Access

HSUPA High-Speed Uplink Packet

Access

HDTV High-Definition Television

HSS Home Subscriber Server

I-HSPA Internet High-Speed Packet

Access

IMS IP Multimedia Subsystem

IP Internet ProtocolISD Inter Site Distance

LTE Long-Term Evolution

LSTI LTE-SAE Trial Initiative

m2m Machine-to-Machine

MGW Media GatewayMIMO Multiple Input / Multiple

Output

MME Mobility Management Entity

NGMN Next Generation of Mobile

Networks

OFDM Orthogonal Frequency

Division Multiplexing

PCF Policy Control Function

PCRF Policy and Charging Rule

Function

PDN-GW Packet Data Network

Gateway

PDSN Packet Data Serving NodePS Packet-switched

PSTN Public Switched

Telephone Network

QAM Quadrature Amplitude

Modulation

QoS Quality of service

RAN Radio Access Network

RF Radio Frequency

RNC Radio Network Controller

SAE System Architecture

Evolution

SAE GW System Architecture

Evolution GatewaySC-FDMA Single Carrier Frequency

Multiple Access

SGSN Service GPRS Service

Node

SMS Short Message Service

UE User Equipment

UL Uplink

UMTS Universal Mobile

Telecommunications

System

VoIP Voice over IP

WCDMA Wideband Code Division

Multiple Access

References[1] NGMN white paper version 3.0:

Next Generation Mobile Networks Beyond HSPA and EVDO

http://www.ngmn.org/fileadmin/content/documents/downloads/

White_Paper_-_Beyond_HSPA_and_EVDO.pdf



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www.nokiasiemensnetworks.com

Nokia Siemens Networks

P.O. Box 1

FI-02022 NOKIA SIEMENS NETWORKS

Finland

Visiting address:

Karaportti 3, ESPOO, Finland

Switchboard +358 71 400 4000 (Finland)Switchboard +49 89 5159 01 (Germany)

Order-No. C401-00143-WP-200711-3-EN

Copyright 2008 Nokia Siemens Networks.

All rights reserved.

Nokia Siemens Networks and the wave logo are registered

trademarks of Nokia Siemens Networks. Other company and

product names mentioned here in may be trademarks or

trade names of their respective owners.

This publication is issued to provide information only and is

not to form part of any order contract. The products and

services described herein are subject to availability and

change without notice.

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