LTE Spectrum Overview

Transcription

1 LTE Spectrum Overview

2 AGENDA Standard LTE Bands Digital Dividend Bands Prime LTE Bands Re-farming Bands

3 LTE FDD BANDS Operating Band Uplink (UL) operating band BS receive UE transmit Downlink (DL) operating band BS transmit UE receive Duplex Mode MHz 1980 MHz 2110 MHz 2170 MHz FDD IMT Core/UMTS (EU & Japan) MHz 1910 MHz 1930 MHz 1990 MHz FDD PCS-1900 (NA) MHz 1785 MHz 1805 MHz 1880 MHz FDD GSM-1800 (EU) MHz 1755 MHz 2110 MHz 2155 MHz FDD AWS (NA) MHz 849 MHz 869 MHz 894MHz FDD 850 (NA) MHz 840 MHz 875 MHz 885 MHz FDD 850 (Japan&Australia) MHz 2570 MHz 2620 MHz 2690 MHz FDD IMT-Extension/UMTS (EU) MHz 915 MHz 925 MHz 960 MHz FDD GSM-900 (EU) MHz MHz MHz MHz FDD 1700 (Japan&Australia) MHz 1770 MHz 2110 MHz 2170 MHz FDD Ext AWS (NA) MHz MHz MHz MHz FDD 1500 (Japan&Australia) MHz 716 MHz 729 MHz 746 MHz FDD Lower A-B-C 700 MHz (NA) MHz 787 MHz 746 MHz 756 MHz FDD Upper C 700 MHz (NA) MHz 798 MHz 758 MHz 768 MHz FDD Upper D 700 MHz (Public Sft) 15 Reserved Reserved FDD 16 Reserved Reserved FDD MHz 716 MHz 734 MHz 746 MHz FDD Lower B&C 700 MHz (NA) XXX XXX XXX 800 (Japan) MHz 862 MHz 791 MHz 821 MHz FDD Digital Dividend (EU) XXX XXX XXX Use

4 LTE TDD BANDS Operatin g Band Uplink (UL) operating band BS receive UE transmit Downlink (DL) operating band BS transmit UE receive Duplex Mode Name FUL_low FUL_high FUL_low FUL_high MHz 1920 MHz 1900 MHz 1920 MHz TDD UMTS MHz 2025 MHz 2010 MHz 2025 MHz TDD UMTS MHz 1910 MHz 1850 MHz 1910 MHz TDD NA MHz 1990 MHz 1930 MHz 1990 MHz TDD NA MHz 1930 MHz 1910 MHz 1930 MHz TDD NA MHz 2620 MHz 2570 MHz 2620 MHz TDD UMTS-EXTENSION MHz 1920 MHz 1880 MHz 1920 MHz TDD CHINESE TDD MHz 2400 MHz 2300 MHz 2400 MHz TDD 2300 MHz MHz MHz 2496 MHz MHz TDD US MHz 3600 MHz 3400 MHz 3600 MHz TDD 3500 MHz MHz 3800 MHz 3600 MHz 3800 MHz TDD 3700 MHz

5 LTE Bands vs Channel Bandwith Source: 3GPP TS version Release 10 More spectrum i.e. more capacity available at higher frequencies

6 LTE and Carrier Aggregation LTE Rel 8 & 9 Single-carrier operation Bandwith from 1.4 MHz, through 3, 5, 10, and 15, up to 20 MHz LTE Rel 10 Aggregation of up to 5 component carriers i.e. the LTE Rel 8 & 9 carriers As a result up to 100 MHz (i.e. 5 X 20 Mhz) Each component fully compatible with Rel 8 & 9 i.e. coexistence of Rel 8, 9, & 10 Ues possible

7 Frequency Impact on Cell Size Nbr Base Stations Cell Radius (Km) <700 MHz M1 H 0 z MHz MHz MHz 0 Site coverage is inversely related to the frequency band (i.e. the higher frequency band, the smaller the coverage).

8 LTE Prime Spectrum Bands New Spectrum 2.6 GHz in Europe & APAC (main LTE capacity band) auctions completed in many european countries Digital Dividend (coverage bands) Most Common LTE Bands (FDD) 700 MHz: band 12, 13, 14 & 17 (new) 800 MHz: band 20 (new) 1800 MHz: band 3 (typically re-farmed) 2600 MHz: band 7 (new) Other LTE Bands 2.1 GHz : band 1 AWS: band MHz: band MHz (Japan - various): band MHz: band 9 NA MHz - AWS Europe MHz MHz MHz MHz Middle-east MHz MHz LATA MHz - AWS MHz MHz APAC MHz MHz MHz MHz MHz MHz

9 Digital Dividend Bands Switchover from analog to digital TV 2007 World Radio Conference (1 st Digital Dividend) Region 1 (Europe, Middle East and Africa) identified MHz for mobile services : Band 20 Region 2 (Americas) identified MHz : Band Region 3 (Asia) mobile allocations are MHz, with a number of Asian nations identifying MHz for IMT systems World Radio Conference (2 nd Digital Dividend) allocate more UHF spectrum for mobile services in Region 1 (Europe, Russia, Africa, parts of Middle East). This allocation, MHz, to come into force in 2015, is next to the existing digital dividend band ( MHz). Region 1 Region 2 Region 3

10 REGION 1 EUROPE, MIDDLE EAST AND AFRICA

11 REGION 2 AMERICAS (1/2) 3GPP Band Plans covering the US Digital Dividend Spectrum

12 REGION 2 AMERICAS (2/2)

13 REGION 3 ASIA PACIFIC AND JAPAN 2X45 MHz block in the MHz band with a 10 MHz center gap for FDD use Alternatively, an FDD use

14 LTE Bands in Asia-Pacific

15 UAE makes mobile broadband breakthrough in 700 MHz band Combining the 800 MHz band plan for Region 1 with the lower portion of the Region MHz band First country in Region 1 to offer mobile broadband in both bands

16 2012 World Radio Conference (2nd Digital Dividend) Second Digital Dividend in Europe UHF TV channels (UHF band IV and V) MHz digital dividend 490 MHz 694 MHz second digital dividend 790 MHz 0 Second digital dividend is often reffered to as "700 MHz band" 0 This is a natural candidate for second digital dividend 0 WRC-12: use band MHz for mobile IMT after WRC-15

17 LTE Re-farming Bands LTE Refarming in NA MHz - AWS MHz (TDD) LTE Refarming in Europe MHz MHz MHz (TDD) APAC MHz MHz MHz MHz MHz LTE Refarming in LATA MHz - AWS MHz (TDD) LTE Refarming in Middle-east MHz MHz (TDD) MHz (TDD) MHz (TDD) Q4-2011: 30% LTE Subscribers served by re-farming bands (mostly AWS & 1800 MHz)

18 Evolution of frequency band allocation New Bands: - 2.6GHz spectrum mainly for LTE; mainly for hotspot and dens urban areas - Digital Dividend (e.g. 800MHz/700MHz bands): mainly for suburban and rural areas 2.1GHz Band: Mainly for UMTS/HSPA/HSPA+ Source: Ericsson 900MHz & 1800MHz Bands; - 900MHz refarming already started for UMTS usage MHz will be re-farmed directly to LTE

19 2G Re-farming 2G Band into LTE Band 2G The Whole BW is 2G i.e. mostly voice traffic Re-farming some BW from 2G to LTE i.e. increased data traffic The whole band is LTE i.e. with LTE offering both voice & data support Commercial RAN vendors offer flexible spectrum sharing among multiple RATs (e.g. 2G & LTE)

20 LTE in re-farming spectrum : The 1800 MHz Case Widespread Allocation More than 350 operators are estimated to have been allocated 1800 MHz spectrum Today 1800 MHz is mainly used for voice (GSM) service GSM voice traffic is peaking/reducing; data traffic is growing exponentially 1800 MHz is a prime band for LTE international roaming Large Spectrum In many markets 1800 MHz represents the largest spectrum allocation 60% of 1800 MHz spectrum in the top 7 EU markets (*) is available in 10 MHz or wider assignments 1800 MHz band is harmonized, non-fragmented, and often only partiallyutilized Technical Advantages Coverage area is about 2X larger than LTE2.6GHz with better indoor penetration. 35% improvement in cell edge throughput compared to LTE2.6GHz. Reduction of Extra sites results in quick delivery of the LTE to market. Providing initial widespread coverage with LTE in the 1800 MHz band can be as much as 60% cheaper than covering the same area with LTE using higher frequency bands Reuse of existing GSM1800 sites and possibly share antenna systems Ecosystem Readiness 1800 MHz RF components now available in volume production from multiple vendors 14 commercial LTE1800 networks launched * France, Germany, Italy, Norway, Spain, Sweden, UK

21 LTE1800 Market Status (Q2-2012) Country Operator LTE BAND Start Date Australia Telstra 1800 Sep 2011 Japan eaccess 1800 Mar 2012 Korea KT Corp 1800 Jan 2012 Singapore MobileOne 18/26 Jun 2011 Singapore SingTel 18/26 Dec 2011 Estonia EMT Estonia 18/26 Jan 2012 Hungary T-Mobile Hungary 1800 Jan 2012 Latvia LMT 1800 Jun 2011 Lithuania Omnitel 1800 May 2011 Poland Centernet 1800 Sep 2010 Poland Mobyland 1800 Sep 2010 Poland Polkomtel 1800 Nov Commercial LTE1800 Networks in 15+ countries Band 3: 2 X 75 MHx (Total Spectrum) 100 LTE1800 Devices Available Some early LTE1800 Commercial Networks

22 TELSTRA REFARMING PLANS Source Spectrum: Using What We've Got Presentation by Mike Wright, Executive Director Networks and Access Technologies

23 Co-existing 2G/3G & LTE Systems Antenna Separation (2G/3G to LTE antennas) Horizontal : 0.5 m Vertical : 0.2 m Guard Band LTE1800+GSM1800 : 0.2 MHz LTE Band X + LTE Band Y : 0 MHz LTE FDD + LTE TDD : 10 MHz

24 GLOBAL LTE TDD BEYOND CHINA (Q2-2012) Global TD-LTE Initiative Over 60 TD-LTE Devices Key Commercial Deployments Softbank (Japan) Skybrazil (Brazil) STC (Saudi Arabia) Etisalat (Saudi Arabia) Aero2 (Poland)

25 THANK YOU