Post on 22-Jan-2016
description
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
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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
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