CDMA Development Group Contribution on CDMA2000 and Spectrum Flexibility

Transcription

1 Dept. of Communications & Information Technology Republic of Indonesia Workshop on Radio Frequency Spectrum for the 3 rd Generation Mobile Communications System (IMT-2000) CDMA Development Group Contribution on CDMA2000 and Spectrum Flexibility Bill Dahnke CDMA Development Group 21 July 2005

2 CDMA Development Group CDMA Worldwide CDMA2000 at 1900 MHz Guardband for Mixed Band Plan Impact of CDMA2000 PCS Operator Re-location 2

3 CDMA Development Group CDMA Worldwide CDMA2000 at 1900 MHz Guardband for Mixed Band Plan Impact of CDMA2000 PCS Operator Re-location 3

4 CDMA Development Group - CDG The CDG is a consortium of CDMA operator and vendor member companies from around the world. Members are involved in CDMA system deployment and support. Operators Subscriber Equipment Value-Added Services Network Infrastructure Network Enhancement/ Optimization Network Interface & Access 4

5 Charter of the CDG To lead the rapid evolution and deployment of CDMA-based systems, based on open standards and encompassing all core architectures, to meet the needs of markets around the world Information Distribution Conferences s Website Press Briefings Technical Service Development System Testing GHRC Evolution MMS Deployment Assistance Time-to-Market Int l Roaming Interoperability Regulatory 5

6 CDMA Development Group CDMA Worldwide CDMA2000 at 1900 MHz Guardband for Mixed Band Plan Impact of CDMA2000 PCS Operator Re-location 6

7 The Dominant 3G Standards are Based on CDMA IMT-2000 Terrestrial Radio Interfaces IMT-2000 CDMA Direct Spread IMT-2000 CDMA Multi-Carrier IMT-2000 CDMA TDD IMT-2000 TDMA Single Carrier IMT-2000 FDMA/ TDMA WCDMA (UMTS) CDMA2000 1X & 1xEV UTRA TDD & TD-SCDMA UWC-136/ EDGE DECT 3G CDMA Source: ITU-R recommendation M

8 CDMA is the Fastest Growing Worldwide Cellular Technology Serves more than 256 million users across all continents Subscriber base growing at 27% per year, compared to 20% for the overall industry 43% CDMA market growth in Asia Rapidly expanding in key markets India fastest growing technology, reached 12+ million subscribers and growing rapidly China 28 million users Indonesia 5 commercial CDMA operators Source: CDMA Development Group Dominant technology in North America CDMA: 97 million subscribers, 49% market share TDMA: being phased out GSM: 57 million subscribers, 30% market share 8

9 CDMA2000 Dominates 3G Market Today 168 million 3G (IMT-2000) Subscribers on CDMA2000 Source: CDMA Development Group and UMTS Forum 9

10 CDMA2000 Dominates 3G Market Today 168 million 3G (IMT-2000) Subscribers on CDMA2000 Source: CDMA Development Group and UMTS Forum 25 million 3G (IMT-2000) Subscribers on WCDMA 10

11 CDMA Development Group CDMA Worldwide CDMA2000 at 1900 MHz Guardband for Mixed Band Plan Impact of CDMA2000 PCS Operator Re-location 11

12 ITU Identified Bands for 3G (IMT-2000) IMT IMT IMT IMT Frequency Band in Megahertz (MHz) 12

13 3G Deployments in Various Bands CDMA2000 (1.25 MHz) India, China, Japan, Korea, USA, and 60+ other countries IMT IMT IMT IMT Frequency Band in Megahertz (MHz) 13

14 3G Deployments in Various Bands CDMA2000 (1.25 MHz) CDMA2000 (1.25 MHz) Over 65 CDMA operators in 1900 MHz PCS band in 21 countries IMT IMT IMT IMT Frequency Band in Megahertz (MHz) 14

15 3G Deployments in Various Bands CDMA2000 (1.25 MHz) CDMA2000 (1.25 MHz) WCDMA (5 MHz) IMT Both CDMA2000 and WCDMA operate in 1900 MHz PCS band in USA IMT IMT IMT Frequency Band in Megahertz (MHz) 15

16 3G Deployments in Various Bands CDMA2000 (1.25 MHz) CDMA2000 (1.25 MHz) WCDMA (5 MHz) WCDMA (5 MHz) WCDMA operates across these two bands in Europe and Asia IMT IMT IMT IMT Frequency Band in Megahertz (MHz) 16

17 Who Operates CDMA2000 at 1900 MHz? Romania Canada USA Mexico Ecuador Colombia Guatemala Puerto Rico Dom.Rep. Haiti, USVI Algeria Brazil Pakistan Nepal Congo Indonesia Uruguay Chile Argentina Nigeria Over 65 networks in 21 countries on 5 continents 17

18 More than 250 of 700+ CDMA2000 Terminals Operate at 1900 MHz Color Displays and 3 MegaPixel Cameras Streaming Video Real-Time VOD/AOD Voice Recognition, GPS R-UIM enabled Low-tier phones as well Source: 18

19 CDMA Development Group CDMA Worldwide CDMA2000 at 1900 MHz Guardband for Mixed Band Plan Impact of CDMA2000 PCS Operator Re-location 19

20 Mixed Band Plan Spectrum allocation proposal for 3G Services in Indonesia (with 5 MHz guard band at UMTS-PCS boundary) GB: 5 MHz GB: 10 MHz GB: 5 MHz DCS D/L PCS U/L UMTS U/L PCS D/L UMTS D/L 75 MHz 25 MHz 40 MHz 25 MHz 40 MHz Frequency in MHz DCS downlink spectrum for GSM/GPRS/EDGE services UMTS up/downlink spectrum for WCDMA services PCS up/downlink spectrum for CDMA2000 1X and 1xEV-DO services GB: Guard Band 20

21 Guard Band provision between UMTS Uplink and PCS Downlink Available guard band between the UMTS uplink and the PCS downlink is always more than the proposed 5 MHz guard band Occupied bandwidth of a WCDMA carrier is 3.84 MHz. Hence, 580 khz of inherent guardband available on each side of a WCDMA carrier Provision exists in the PCS band allocations for a 625 khz of inherent guardband at the edges Hence, total available guard band between UMTS U/L and PCS D/L is = MHz UMTS Uplink Last WCDMA carrier Available GB: = MHz PCS Downlink CDMA2000 Carriers GB Provision: 5 MHz Frequency in MHz Center-to-center frequency of 8.75 MHz 21

22 Interference Considerations with the UMTS-PCS Mixed Band Plan Types of interference issues that would arise in such UMTS-PCS mixed band plan are: 1. CDMA2000 BTS transmit affecting the WCDMA BTS Receive 2. WCDMA UE Transmit affecting the CDMA2000 MS Receive The first issue is readily addressed by filters and antenna positioning. The second issue is only expected to occur under infrequent, worst-case conditions. 22

23 CDMA Development Group CDMA Worldwide CDMA2000 at 1900 MHz Guardband for Mixed Band Plan Impact of CDMA2000 PCS Operator Re-location 23

24 Considerations for Re-location of CDMA2000 PCS Operators Both current and new frequencies must be simultaneously supported for ~3 years ~ 1-2 years for base station changes ( base stations) ~ 1 years for manual handset re-programming change (or capital expense for automatic programming equipment) Base stations must be modified, or replaced, to support both current and new frequencies, simultaneously Some base stations (depending on model) cannot simultaneously support the old and new frequencies Base station modifications or replacements are expensive: ~US for modification or ~US for replacement RF-related hardware (Tx filters, Rx filters, duplexers, combiners, etc) will not support the new frequency and the old frequency 24

25 Considerations for Re-location of CDMA2000 PCS Operators CDMA2000 handsets use a Preferred Roaming List (PRL) to select proper RF channels a new PRL is required for the new frequency assignment Indonesia s PCS carriers do not have the ability to program the PRL over-the-air (OTA). Such OTA equipment is expensive (~US350k) Subscribers will not want to bring handsets to a store for manual re-programming. > 1M handsets must be re-programmed! Will they be returned to distributors for re-programming? Assuming labor cost is US1.00 per phone: 1M x US1.00 = US1 million The proposed frequency change will substantially impact Indonesian operators Example: 100 base stations x US50k = US5 million Plus US350k for over-the-air programming equipment OR manual handset re-programming will cause customer dissatisfaction and churn 25

26 Summary CDMA2000 dominates the 3G market with over 168 million subscribers ITU treats all IMT2000 bands equally-- CDMA2000 operators can choose from multiple frequency bands CDMA2000 terminals are widely available in 1900 MHz band and have achieved economies of scale Frequency coordination plans permit CDMA2000 and WCDMA to coexist in ITU identified bands 5 MHz of guard band allows CDMA2000 at 1900 MHz and WCDMA at 2.1 GHz to co-exist Re-locating CDMA2000 operators include substantial tangible and intangible costs CDMA2000 PCS operators are providing affordable communications services and smooth migration to advanced 3G services -- they should not be penalized due to spectrum re-organization 26

27 Thank you! More info: 27