Nadi, Fiji, 4-6 July 2011

4G Development and Spectrum Issues

Kyu-Jin WEE ,Ph.D.

Vice-Chairman, ITU-R WP 5D

ITU-T Workshop on Bridging the Standardization Gapand Interactive Training Session

(Nadi, Fiji, 4 – 6 July 2011 )

Nadi, Fiji, 4-6 July 2011 2

Contents

What is 4G?Review of ITU activities on IMTWhat is 4G?IMT Standards in ITU-R

Spectrum IssuesIMT Identifications at WRCsMain principles of spectrum use for IMTInterference casesChannel arrangements in 700 MHzSpectrum Harmonization among APT

What is 4G?

3

1985

1992

1999

2007

2000

2003

2011

2015/16

Broadband/IMT Spectrum(WRC-2015/16)

2012

Review of ITU activities on IMTReview of ITU activities on IMT

4

Interconnection

IMT-2000

Mobility

Low

High

1 10 100 1000Peak useful data rate (Mbit/s)

EnhancedIMT-2000

Enhancement

IMT-2000

Mobility

Low

High

1 10 100 1000

Area Wireless Access

EnhancedIMT-2000

Enhancement

Digital Broadcast SystemsNomadic / Local Area Access Systems

New Nomadic / Local

Systems beyond IMT-2000 will encompass the capabilities of previous systems

New capabilities of systems beyond

Up to 100 Mbit/s for high mobility

up to 1 Gbit/s for low mobility

New Mobile Access

Recommendation ITU-R M.1645

IMT-ADVANCED

Vision for IMTVision for IMT

5

Traffic = users x volume per user

Mobile talk10 kbps

10-50MB/month

Smartphone100-1,000 kbps

100-500 MB/month

Mobile PC>1 Mbps

1-5 GB/month

1

10

100

0500

1 0001 5002 0002 5003 0003 5004 0004 5005 000

2008 20092010201120122013201420152016

Su

bscri

pti

on

s (

million

)

Mobile PC& Tablets

Handhelddevices

60

0

10

20

30

40

50

2008 2009 2010 2011 2012 2013 2014 2015 2016

Data

Voice

Yearl

y E

xab

yte

s (

10

18)

Capacity DemandsCapacity Demands

6

Voice+Data+Wireless Internet + sensing

-WiMax Evolution, LTE advanced-3D video/Rich multimedia phone, M2M

Voice- Analog Cellular-Car Phone

Voice Oriented(Wired -> Wireless

Mobility)

Technology-oriented System

(Voice Quality/Roaming)

Service-oriented System

High-speed Wireless Internet

(Broadband)

User-oriented SystemUbiquitous Convergence

Service(Broadband, Ubiquitous, Sensing, Convergence,

Intelligence)

1G

Voice+SMS-cdmaOne, GSM-DMB/MP3/DigiCamara

2G 3G

Voice+Data-WCDMA/HSDPACdma2000-DMB/MP3/DigiCamara

Voice+Data+Wireless Internet-WiBRO Cdma2000rA,B/HSUPA-Game/Video phone

4G

Cut the wire ! Digital ! Video phone+ internet All in the mobile !

What is 4G?What is 4G?

7* Images captured on the web

8

Evolution of IMT TechnologiesEvolution of IMT Technologies

Standardization of IMT-Advanced systemsDeveloping Recommendation ITU-R [IMT.RSPEC] (to be approved in RA-12, 2012)

LTE-Advanced (by the 3GPP)WirelessMAN-Advanced (802.16m by the IEEE)

Forecast of future IMT servicesDeveloping Report ITU-R IMT.UPDATE (to be approved in 2011)

Review of previous market forecastNew trends in mobile broadbandBroadband plans available including mobile broadband/IMT

Spectrum HarmonizationRevising Recommendation ITU-R M.1036 (to be approved in 2011)

Harmonized channel arrangements

IMT Standards in ITU-RIMT Standards in ITU-R

9

Spectrum Issues

10

No distinction between IMT-2000 & IMT-Advanced in the use of frequenciesIMT identification at WRC-07

in the band 698-790 MHz in Bangladesh, China, Korea, India, Japan, New Zealand, Singapore, Papua New Guinea, and Philippines (RR No. 5.313A) in the band 3400-3500 MHz in Bangladesh, China, Korea, India, Japan, New Zealand, Singapore, Pakistan, Iran and French overseas communities in R3 (RR Nos. 5.432A and 5.432B)

400 600 800 1000 1700 1900 2100 2300 2500 2700 3400 3600 400 600 800 1000 1700 1900 2100 2300 2500 2700 3400 3600

428M/392MWRC-07

519MWRC-2000

230MWARC-92

1885 2025 2110 2200 1885 2025 2110 2200

140M 140M 90M 90M

806 960 1710 1885 2500 2690 806 960 1710 1885 2500 2690

154M 154M 175M 175M 190M 190M

450 470 698 806 2300 2400 3400 3600450 470 698 806 2300 2400 3400 3600

20M 20M 108M 108M

72M 72M790 862 790 862

(Regional)(Regional) 100M 100M 200M 200M

(Country base)

IMT identifications at WRCsIMT identifications at WRCs

11

(MHz)

Korea

EU

US

CELLULAR PCS IMT-2000

Japan

China

800 1000 1700 2000

824

900 2200

869

849

894880

925

915

960

1750

1850

1780

1880

1805

17851710

1880

1850 19101920

1990

1920 1980 2110 2170

1893 1919

1500

810 828

843 846 898 901

860 885 915 958 1429 1453

1477 1501

1805

17201710

1815

824

869

849

915

960935

824 849

869 894

1920 1980

1920

1980

2110 2170

2110 2170

1920 1980 2110 2170

2500 2700

WARC-92

WRC-2000

1885 2025 2110

140MHz 90MHz

154MHz 175MHz 190MHz 806 960 1710 2690

BWA

AWS AWS

12

IMT bands in some countriesIMT bands in some countries

to minimize the impact on other systems and services within, and adjacent to, the bands identified for IMTto facilitate worldwide roaming of IMT terminalsto optimize the efficiency of spectrum utilization within IMT bands

minimized guardbands for IMT systems to avoid wasting spectrumsufficient frequency separation between transmitter and receiver frequencies must exist in a frequency division duplex system

to minimize terminal costs, size and power consumption, etc.

harmonized frequency arrangements to reduce the overall cost of IMT networks and terminals by providing economies of scale

Main Principles of spectrum use Main Principles of spectrum use for IMTfor IMT

13

same IMT systems in the same frequency band

Administration 1

Neighboring Administration 2

Interference case (1)Interference case (1)

14

Opposite directions of Tx and Rx in the same frequency band may cause interference at cross-border area

Interference case (2)Interference case (2)

15

Interference example in KoreaIntroduction of new system in the adjacent bandSufficient guard band is required to mitigate interference

↑839-849

Operator B @ 850 MHz (LTE service)

Operator A @ 900 MHz

(LTE service)

11 MHz of guard band

↓884-894

↑905-915

↓950-960

Special out-of-band emission limits are regulated for mobile terminal of Operator A and BS of Operator B

16

806

PPDR

45MHz

3MHzDTV MS BS

5MHz 10MHz

Center

gap

TDD

Channel Arrangements Channel Arrangements in 700 MHz (1)in 700 MHz (1)

PPDR2-4MHz

694 698

694 698

DTV 4-6MHz

100MHz

45MHz

806

BS and MS

Option 1 (FDD Conventional)

Option 2 (TDD)

806

By APT Wireless Group (AWG)

Nadi, Fiji, 4-6 July 2011 17

By European Union

Channel Arrangements Channel Arrangements in 700 MHz (2)in 700 MHz (2)

30 MHz Downlink 30 MHz Uplink

791 (MHz) 821 832 862

11 MHz of Center gap

1 MHz of Guardband790

18 MHz Uplink

18 MHz Downlink

MediaFlo

Unpaired11 MHz

Downlink

11 MHz

Uplink

D block & Public Safety

D block & Public Safety

698 (MHz) 716 722 728 746 757 776 787 806

758 775 788 805

By the US

Spectrum Harmonization Spectrum Harmonization among APTamong APT

18

Plan of action from “Bali Statement” by Asia Pacific Ministerial Meeting on Strengthening Regional Collaboration towards a Broadband Economy in the Asia pacific

Policy objective C: Facilitate effective convergence of servicesCollaborate regionally possible to harmonize the RF bands allocated for broadband ICT application and services

Most of spectrum plans led by EU countries and the AmericasAPT countries adopted them and not harmonized among APT

AWG developed Channel arrangement in 700 MHz bandFirst case of harmonized spectrum plan for Asia-Pacific countries

Encouraged to keep collaborating for spectrum harmonization taking into account Bali statement

Thank You!kjwee@kcc.go.kr

19