multiple rats

8/12/2019 multiple RATs

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1 Nokia Siemens Networks HH / 08.08.08

GSM to Wimax ScenarioTanzania Market Data


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GSM to LTE business case with NSNTanzania Market data

LTE / November 2009


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2008 2009 2010

Flexi WCDMA BTS 900

Refarming Solution (4.2MHz)

Single Mode WCDMA 2100

Flexi WCDMA

Single Mode

Flexi EDGE BTSTraditional

GSM/EDGEbands

(e.g. 850,900,1800,1900)

WCDMALTE

(e.g. 700, 2100, 2600)

20122011

Flexi Multiradio BTS

WCDMA/LTE

Flexi Multiradio BTS

GSM/WCDMA/LTE

2020

Flexi Base stationunique site solutionsoftware defined migration to LTE


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LTE refarming to 900/1800 MHz frequency bands

Introduction of LTE services into

frequency band that is already usedfor GSM

In order to fit the LTE carriers intosame bandwidth, typically spectrumefficiency needs to be improved

900/1800 MHz band

2100/2600 MHz bands

= LTE= GSM after refarming

LTE

Operators current GSM bandwidth


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Exemplary cell ranges comparison for

Urban EnvironmentGSM Coverage:

GSMvoice*More advanced radio technology:

- higher allowable path loss

- minimal difference in cell range

HSPA

LTE

Multi-radio introductionreusing existing network gridLTE 2600, UMTS 2100 on GSM 1800MHz grid (urban sites)

LTE-2600, UMTS-2100 and GSM-1800 can be deployed on same grid

GSMHSPA 2100MHz

LTE 2600MHz

GSM 1800MHz

General Assumptions:

Urban Environment,

indoor coverage (15 dB)WCDMA 5, LTE 10MHz bandwidth

Dedicated antennas for 2100, 2600

Cell rangeLink budget (MAPL)

UL DL

GSM1800 - km

dB

0.97

135.8

1.34

140.7WCDMA - km

dB

1.17

140.2

1.22

140.8

LTE2600 - km

dB

1.08

142.8

1.09

142.9

* 3 dB body loss

Cell BorderCell Border


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LTE FrequencyRefarming on 900/1800 MHz(5 MHz lllustration example)

LTE 5 MHz

24 GSM carriers

2.7 MHz

LTE 5 MHz (4.6 MHz)

2.5 MHz

= GSM carrier by the same operator

= guard carrier

= GSM carrier by a different operator

GSM only operation in 5 MHz

LTE 5 MHz in uncoordinatedcase1(different sites than

GSM)min.26 GSM carriers required

LTE 5 MHz in coordinated case(same sites than GSM = sameoperator)

min.23 GSM carriers required

= LTE carrier1Uncoordinated case based on 36.101narrowband blocking requirements



Devices:Nokia trials first internet modemsupporting LTE

September 7, 2009 - NokiaPressServices

Nokia today introduced its first ever Long Term Evolution (LTE) capable internetmodem, which is based on Nokias own LTE modem technology development.The Nokia Internet Modem RD-3 is available to be used in LTE technology developmentwith various network vendors, measurement equipment manufacturers and operators.

Nokia is committed to supporting industry activities aimed at maturing LTEtechnology to enable the first commercial networks to launch in 2010,says JaniMenp, Project Manager, LTE/SAE Interoperability and Trials, Nokia. Nokia is afounding member in the LTE/SAE Trial Initiative (LSTI) and carries out interoperabilitytesting with a number of network vendors, collaborates with measurement equipmentmanufacturers and is ready to support operators with their LTE deployment activities. TheNokia Internet Modem RD-3 is used in all these activities.

Nokia Internet Modem RD-3 supports interoperability with GSM/EDGE andWCDMA/HSPA to make the most out of the global GSM and WCDMA reach right

from the startNokia Internet Modem RD-3 also supports multiple LTE frequency bands so isable to meet operators deployment plans across many different countries andregions.



Devices: LTE Device Industry SnapshotCommercial, standard-compliant devices expected 2H/2010

2009 2010 2011

F FPGA platform A ASIC test platform A commercial ASIC product chipset USB-dongle

F FA A

F A Atrial

trial

A AA

F F A A A A Atrial CDMA HSPA

trialsF F A A A

AAF

AF

A A

trialF A A

F F A A A



LTE vs Wimax Comparison

Peak data ratedownlink 2x2 MIMO

Duplexing

Main frequencies(excl Japan)

Spectral efficiency

Suburban cell size

USB modems and

integrated laptops

LTE Release 9 WiMAX

150 Mbps 20 MHz300 Mbps 4x4 MIMO

40 Mbps 10 MHz80 Mbps 20 MHz

FDD and TDD TDD

700, 800, 1800, 2300,2600 (3500 later)

2300, 2600, 3500

1.7 bps/Hz/cell 1.4 bps/Hz/cell

4 km (indoor)8 km (outdoor)

800 MHz

1.3 km (indoor)2.6 km (outdoor)

2600 MHz

Starting end-2010Operator pricing 60-80

USD

Yes, LTE-Advanced in3GPP Release 10

802.16mEvolution path


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LTE vs Wimax Comparison (2)

Handheld terminals

GSM/EDGEinterworking

Technologyharmonization

LTE Release 9 WiMAX

Yes, expected starting2012 in the high end

Unclear

Yes No

HSPA and LTEharmonized

Follows same 3GPPecosystemEcosystem size


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Points to Consider

Peak data rates are similar in HSPA/LTE and in WiMAX with the same amountof spectrum.

HSPA uses only FDD. WiMAX uses only TDD. LTE has harmonized FDD andTDD options.

WiMAX is the only TDD solution now before TD-LTE is available by 2011

LTE will eventually be available on all existing WiMAX frequencies including2300 and 3500.

Low frequency FDD is better for coverage than high frequency TDD. HSPA900and LTE800 are best for coverage.

LTE has highest spectral efficiency, 20-50% more than HSPA or WiMAX

HSPA has the benefit of low cost terminals and smart phones like iPhone andGoogle G1.

HSPA and LTE are harmonized = all LTE terminals include HSPA. Same Flexi

HW for HSPA and LTE. No such harmonization with WiMAX.HSPA/LTE chips have in-built GSM/EDGE capability

HSPA/LTE has by far the largest device eco-system pushing prices down.WiMAX ecosystem looks less clear.


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