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Per-Erik Witasp

Broadband access in GSM networks. Per-Erik Witasp. Senior Marketing Manager. Business Unit Access. Broadband is data evolution. Radio Network. Core Network. GSM circuit switched data. A’’. A. BSC. BTS. MSC/VLR. HLR. GSM initial designed for voice Low data rate bearer existed

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Per-Erik Witasp

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  1. Broadband access in GSM networks Per-Erik Witasp Senior Marketing Manager Business Unit Access

  2. Broadband is data evolution

  3. Radio Network Core Network GSM circuit switched data A’’ A BSC BTS MSC/VLR HLR • GSM initial designed for voice • Low data rate bearer existed • Circuit switched data  9.6kbps & 14.4 kbps • HSCSD  max 4TS = 57.6kbps • Spectrum inefficient data solutions

  4. IP Network GSM Introduction of packet switched data A’’ A BSC BTS MSC/VLR HLR

  5. GSM Introduction of packet switched data A’’ A BSC BTS MSC/VLR HLR Gr (MAP) Gb Gs IP Network Gi (IP) SGSN GGSN BGW • Packet data introduction in GSM • Coding schemes CS1…CS4  max. 20kbps/TS • today max 4TS = max. 80kbps • practical data rates  10-14kbps/TS • More resource efficient data solution (users “share” data channels)

  6. A’’ A BSC BTS MSC/VLR HLR Gr (MAP) Gb Gs IP Network Gi (IP) SGSN GGSN EDGE BGW GSM Evolved packet switched data A’’ A BSC BTS MSC/VLR HLR Gr (MAP) Gb Gs IP Network Gi (IP) SGSN GGSN BGW Packet switched core not affected • Evolved packet data in GSM • Coding schemes MCS1..MCS9  max. 59.2kbps/TS • today max 4TS = max. 236.8kbps • practical data rates  40kbps/TS • Highest spectral efficiency for GSM based data bearers

  7. EDGE TRU GSM EDGE practical impact RBS BSC SWupgrade

  8. Practical data rates

  9. EDGE performance EDGE in LIVE network ~40kbps/TS on BCCH

  10. GPRS & EDGE live performance

  11. Standard Evolution

  12. Standard evolution to 3G One Family TDMA GSM/GPRSEDGE GSM/GPRS/EDGE WCDMA/WCDMA EV (HSDPA) GSM PDC CDMA2000 1X/ CDMA2000 1XEV cdmaOne CDMA2000 1X 2G First Step into 3G 3G 3G Evolved 28.8 kb/s 64 - 144 Kb/s 384 Kb/s - 2 Mb/s 384 Kb/s - 15Mb/s 2001/2002 2002/2003 2004+ Time

  13. RNC Node B Addition of WCDMA to GSM GSM/EDGE Radio Access A’’ A BSC BTS MSC/VLR HLR Gr (MAP) Gs Iu Gb IP Network Gi (IP) Iub SGSN GGSN WCDMA Radio Access Iucs BGW Introduction of new radio modulation  WCDMA Common core network for GSM & WCDMA UTRAN & GSM RAN access Seamless functionality (Traffic Control & Service continuity) Further evolution of WCDMA radio access (HSDPA). Phased introduction of packet bearers up to 14Mbits

  14. Seamless Network Operation- Main benefits for operator Optimising Radio Network Resources Traffic Management Shared transmission GSM/GPRS/EDGE GSM/GPRS/EDGE WCDMA WCDMA GSM/GPRS/EDGE GSM/GPRS/EDGE WCDMA WCDMA Site sharing Service Continuity Node re-use Core Network Core Network Core Network Enhancing End-user Experiences Application Servers Application Servers Application Servers Common NetworkManagement

  15. Service Continuity Strategy Aligned Service Offering Same services Seamless Handover Experience No interrupts Speech GSM WCDMA Web browsing/SMS/MMS GSM/EDGE WCDMA QoS Streaming GSM/EDGE WCDMA Video telephony GSM/EDGE WCDMA Pending future releases

  16. Broadband access – Improved Perception Download time mp3 file (~4MB) GPRS EDGE WCDMA User perception is crucial for data demanding services and applications Evolved WCDMA • End user behaviour will change depended on available bit pipe. • This has been seen with the introduction of ISDN and ADSL compared to analogue connections (V90).

  17. Increased usage due to faster access and higher data rates

  18. Increased usage due to faster access and higher data rates Faster bearers will increase the mobile data usage and warrant take off

  19. Transition from GSM Data to Wireless Broadband Access is smooth Seamless Network functionality warrants service continuity Traffic Control ensures optimal utilization of GSM and WCDMA systems Wireless Broadband Access will boost usage and revenues… Summary

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