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Colombo, Sri Lanka, 7-10 April 2009 Extending Voice & Data Coverage with Ease R.Thirumurthy, Midas Communication Technologies Pvt. Ltd FORUM ON NEXT GENERATION.

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Presentation on theme: "Colombo, Sri Lanka, 7-10 April 2009 Extending Voice & Data Coverage with Ease R.Thirumurthy, Midas Communication Technologies Pvt. Ltd FORUM ON NEXT GENERATION."— Presentation transcript:

1 Colombo, Sri Lanka, 7-10 April 2009 Extending Voice & Data Coverage with Ease R.Thirumurthy, Midas Communication Technologies Pvt. Ltd FORUM ON NEXT GENERATION STANDARDIZATION (Colombo, Sri Lanka, 7-10 April 2009)

2 Colombo, Sri Lanka, 7-10 April 2009 2 Outline Motivation Coverage Expansion Issues Technology Rural Aspects Summary

3 Colombo, Sri Lanka, 7-10 April 2009 3 Among other issues, key are Rural aspects requirements and Technology choice Motivation Technology Choice Our view on the Potential solution w.r.t Technology, standardization & regulation on Technology Choice Poor Infrastructure Sparse Population Efficiently catering to voice & Data Rural Coverage

4 Colombo, Sri Lanka, 7-10 April 2009 4 Various BWA technologies in offering and in pipeline Parallel technologies with little in common Wait & watch approach for investment Choices in Technology 802.16e EVDO HSPA 802.16m LTE Advanced Spectrum Issues - Different spectrum and channel sizes WCDMA LTE Aimed at - High mobility - Dense deployment - Broadband centric

5 Colombo, Sri Lanka, 7-10 April 2009 5 Air Interface and Spectrum Issues Technology Choice How to live with it? Channel Size (MHz) Uplink Access Operating Frequency (GHz) 802.16e5, 7, 8.75,10OFDMA2.3-2.4, 2.5-2.7, 3.3-3.8 WCDMA5 3G Spectrum 802.16m5-20OFDMA< 6 GHz LTE1.25-20SC-FDMA3G spectrum, 900 MHz

6 Colombo, Sri Lanka, 7-10 April 2009 6 Reuse of Transmission, Provisioning and other core infrastructure elements Unified Architecture Reuse of Access Systems, insulate CAPEX from changing technologies Soft BTS Technology Choice Protecting CAPEX

7 Colombo, Sri Lanka, 7-10 April 2009 7 Flat Architecture RRC and RRM moved to BTS Standard IP interface from BTS to Access Gateway Standardization on protocol between BTS and Access gateway Security, QOS, Connection Management, AAA, Mobility etc Unified Architecture Access Gw 802.16e/ LTE/ HSPA.. CSN IP Backhaul

8 Colombo, Sri Lanka, 7-10 April 2009 8 Software BTS SDR Re-configurable PHY and MAC Re-configurable wideband RF Process.16e,.16m or LTE, LTE-A waveforms Soft BTS

9 Colombo, Sri Lanka, 7-10 April 2009 9 Hurdles in Rural Coverage Low ARPU E.g. GSM Voice - $4.5/month and CDMA Voice $2.5/month Low subscriber density Lack of Infrastructure Unavailability of power results in high usage of diesel increasing the OPEX by $300 per month Environmentally hardened, small footprint, low weight Backhaul cost Source: TRAI Report 13-Jan-09, Survey by FICCI

10 Colombo, Sri Lanka, 7-10 April 2009 10 What do rural areas need? Rural - Requirements Services Broadband Data Voice Speed?Delivery Media Terminals?Handsets?< 1 Mbps?> 1 Mbps?> 5 Mbps?

11 Colombo, Sri Lanka, 7-10 April 2009 11 What is required? Rural Coverage By 2013, 3G Modem Subscriber base will still be significant (22 M) WiMax to connect CSC, education instt & Health centers Initial 3G deployments likely to be voice centric Few HIS + Basic services at Low CAPEX & OPEX Source: Survey by FICCI and BDA WiMax will target Residential desktops, Laptops Technologies Optimized for rural deployments Active Infrastructure sharing Power Aware BTS

12 Colombo, Sri Lanka, 7-10 April 2009 12 Minimize risk on low ARPU & uncertain market size Virtual BTS Virtualization of BTS Resources Standardized Management Interface Active Infrastructure Sharing Virtual BTS1 Virtual BTS2 Virtual BTSn Access Gw (Oper-1) Access Gw (Oper-2) Access Gw (Oper-n) Active Backhaul Sharing Active BTS Sharing QoS Fairness in Backhaul? Spectrum ?

13 Colombo, Sri Lanka, 7-10 April 2009 13 High Mobile users and heavy data users are relatively low Requirement for basic service like voice and moderate data usage BTS power intelligence to adopt to different conditions Reduces the power backup required (e.g. diesel, Battery, Solar panel) Power Aware Systems Note: Graphical data relative and conceptual 100% 75% 50% time Reduce Tx Power maintain coverage T Switch to Backup power 25% Capacity

14 Colombo, Sri Lanka, 7-10 April 2009 14 Reduce the Power Amp switch-on time Reduce the coding level (QAM64 –› QAM16 –› QPSK…) Admission control to prioritize emergency services like voice etc. Light GSM - Reduce Transmit Power, BCCH channels have higher Error protection, MS would be able to detect BTS. Switch back to normal power on detecting traffic Power Aware Systems - Capacity Note: Graphical data relative and conceptual TxRx Capacity Management in TDM Systems 100% 75% 50%

15 Colombo, Sri Lanka, 7-10 April 2009 15 Midas’s work in this direction SNAP! Platform Soft BTS supporting Multi technologies (GSM, 802.16e and Enhanced DECT) Support for 400 MHz to 4 GHz in TDD BTS communication to WiMax ASN G/w Scalable Channel Bandwidth (5, 10, 20 MHz) BTS Tower-Top Unit BTS ASN G/w IP Backhaul

16 Colombo, Sri Lanka, 7-10 April 2009 16

17 Colombo, Sri Lanka, 7-10 April 2009 17 corDECT/Enhanced DECT for Rural Wireless DSL Spectrum available in various countries Uncoordinated use of spectrum Provide Voice/FAX/Modem and Broadband Data service, essential for CSC etc. corDECT/Enhanced DECT - 1880-1930 MHz - IMT2000 DECT - Uncoordinated use of spectrum - 10 Km coverage - Low power requirement DECT Roadmap - Meet IMT-Advanced Reqr - OFDMA Support - MIMO Support

18 Colombo, Sri Lanka, 7-10 April 2009 18 corDECT/Enhanced DECT Star ChartSecurity Low Power NLOS Latency Flat IP Arch Dynamic Channel Selection Mobility Spectrum Efficiency CAPEX Reuse High Voice QoS

19 Colombo, Sri Lanka, 7-10 April 2009 19 Summary Coverage Expansion Issues Technology Choice Air Interface & Spectrum issues Protecting CAPEX Rural Expansion Rural Requirements Infrastructure Sharing Power Optimized BTS Multi Technology POP platforms


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