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Views on future wireless access from a Nordic and Baltic perspective

This article explores the views on future wireless access from a Nordic and Baltic perspective, discussing service trends, emerging technologies, and the deployment of new access. It also covers topics such as flat rate and QoS.

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Views on future wireless access from a Nordic and Baltic perspective

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  1. Views on future wireless access from a Nordic and Baltic perspective Fredrik Florén Mobility Services Access Services & Technology

  2. Outline • TeliaSonera Quick Guide • Service Trends • Emerging Technologies • Heterogeneous Access • Deploying a New Access • Flat Rate and QoS • Summary

  3. TeliaSonera Quick Guide • TeliaSonera is the leading telecommunications company in the Nordic and Baltic region • Holds strong positions in mobile communications in Eurasia, Turkey and Russia. • At the end of 2006 TeliaSonera launched mobile services in Spain. • 30.2 million subscriptions, plus 65.9 in associated companies

  4. Service Trends

  5. Service Trends • More Talk • Voice will remain the killer application • Migration to mobile voice continues • Information & Entertainment • Adapted and personalized content • Music downloads, TV, games, gambling, messaging, email • Access and manage your personal content from anywhere • Positioning • Opportunity Driven Services (context) • Advertising on mobiles. Loyalty Programs. Benefits. Content paid with ad’s/banners • Context triggered services, e.g., pushed offers/advertising from favorite stores when passing by. • User acceptance

  6. Service Trends • User Generated Services and Content • User creation and sharing (user generated content) • Chat forums, instant messaging, mobile TV • The Mobile - Your Daily Companion • Mobile Identification, mobile wallet and “safebox” • Common calenders and location • Security – check home, summer house, boat • Always best connected - Simplicity • High-speed Internet access (e.g. to the office) on the move, any where, any time • Best experience (automatic service and access configuration and best available access) • Content and services are created and adapted to the mobile channel and user preferences

  7. Data Traffic Trends • Data traffic volume increased (Sweden) • 300% during 2005 • 400% during 2006 • Large part over 3G network • SMS (Sweden) • 17 million during New Year’s weekend • 7.2 million on Valentine’s day • By 2020, ~2-3x existing spectrum will be required [1] [1] ITU-R Report M.2078

  8. Emerging Technologies

  9. GERAN Evolution • Downlink • Dual carrier • Recieve diversity • Increased symbol rate • Higher order modulation • Turbo coding • Uplink • Increased symbol rate • Higher order modulation • Turbo coding • Latency improvements • Duplex terminals

  10. HSPA Evolution • HSPA • HSDPA • HSUPA • Receive Diversity • Equalizer • Equalizer + Receive Diversity • Enhanced packet data experience • MIMO • Higher-order modulation • MBMS

  11. LTE • LTE spurred by • WiMAX mobile standard and poor PS performance of UMTS R99 • Low-latency, High data rate, Packet optimized • Flexible bandwidth • Possibility to use both existing and new frequency bands • Reduced production cost • Simplified architecture • Mobility • Optimized for low speeds • Mobility up to 250 km/h • Coverage • Focus on cell ranges up to 5 km • Up to 100 km should be possible • Low complexity • MBMS Ref: 3GPP TR 25.913, “Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN)”

  12. LTE, cont’d • OFDM(A)/SC-FDMA • MIMO is baseline • Requirements • 100 Mbps in DL, 50 Mbps in UL • 3-4/2-3 times DL/UL system capacity Rel-6 • 2-3 times DL/UL Rel-6 user rates ”at cell border” • Sites reused • Requirements fulfilled? • Antenna configuration • HSPA enhancements • Choice of channel model • Performance difference for LTE and HSPA Evolution?

  13. Mobile WiMAX • Packet based, IP only • OFDM(A) • MIMO • Peak rates (10 MHz) • 63 Mbps/23 Mbps in DL/UL • Flexible bandwidth • First release: 5, 7, 8.75, 10 MHz • Deployable in multiple bands • Mobility • MBMS • QoS support • VoIP, Streaming, Best effort • TDD initially • Standalone mode (c.f., WLAN)

  14. 802.11 WLANs • 11k Radio Resource Measurements • 11n High Throughput • 600 Mbps peak rate on 40 MHz channel • 11n will deliver approximately 25 Mbps (peak 11a data rate) on 55 meters distance from the AP in an office environment • 11r Fast BSS Transition • 11u Interworking with external networks • 11v Wireless Network Management • 11w Protected Management Frames

  15. Heterogeneous Access

  16. Scenarios and Accesses • Walk & Talk • GSM • LTE • WiMAX • Sit & Work • WLAN • HSPA Evolution • LTE • WiMAX • Stroll & Surf / Ride & Surf • EDGE/GERAN Evolution • HSPA Evolution • LTE • WiMAX • (DVB-h) • Stroll & Surf / Ride & Surf seem to be the main areas for mobile evolution • Both coverage and capacity required at reasonable cost • Many (legacy) mobile and wireless systems will co-exist • Some accesses do the same thing • Can one access do it all?

  17. The radio pizza: Using heterogeneous access • Full taste to low cost – Optimise for coverage and capacity • Bread: IP core • Tomato: GSM • Cheese: GPRS • Salami: EDGE • Bacon: UMTS • Peppers: HSPA • Oregano: WLAN • Olives: WiMAX? • Onions: LTE? Combination of ingredients most important!

  18. Heterogeneous Access RRM Example (AROMA) • Common RRM: How much does the total perceived user throughput increase with centralised steering of traffic to 2G, 3G and WLAN compared to a manual access selection? • What is the cost reduction? • GSM-GPRS • HSDPA • 802.11b • 30% throughput increase or 30% reduced cost due to reduced number or basestations/APs

  19. Terminals • Many technologies will be available for multimode terminals • A few terminals may still be “all included”, but in general access technology support is based on the terminal category • Walk & talk - Speech oriented technologies with additional data capabilities • GSM/GPRS/EDGE • UMTS/HSPA • Stroll & surf - Data oriented technologies with additional speech capabilities • UMTS/HSPA • LTE • WiMAX • Sit & work - Data only • HSPA • WiMAX • LTE • WLAN 5-50 MB/month 25-250 MB/month 100-1000 MB/month

  20. Deploying a New Access

  21. A New System Should… • Offer migration path by reuse of parts of the current infrastructure • Support interworking with existing 3G systems and non-3GPP systems • Support network sharing • Offer migration to new architecture and co-existence with WCDMA radio • Provide reduced OPEX • Avoid backhaul bottlenecks for high data rates • Robust operation and maintenance • … and terminals must be available

  22. How fit new access in Nordic and Baltic countries? • Low population density in most areas • Excellent GSM coverage in Sweden, Finland, Norway and Denmark • CS good for RT QoS and efficient • 20-30 kbps for VoIP compared to12 kbps CS • Additional GSM and EDGE coverage and capacity being built GSM

  23. How fit new access in Nordic and Baltic countries? • UMTS also good coverage • Large early investements due to licence • HSxPA upgradescost efficient • TeliaSonera HomeRun WLAN complement for nomadic high data rate • Short range data/desktop use • WLAN cheap and available in all lap tops • WLANs continue to evolve • High fixed broadband penetration, typically around 50% • Very high Internet usage and penetration; > 85%

  24. Risks with one size fits all • Different requirements • Rural coverage, urban capacity, full mobility or nomadic usage • ”Half-good” at everything • Basic requirements major cost driver • Terminal and base station output power • Signal processing • Terminals will be late • Terminal availability crucial to success of system

  25. Where to use a new access? • 2.6 GHz band • Licenses soon to be allocated • IMT-2000 • Technology neutrality • 3.4-3.6 GHz band • Used for FWA in many European countries • Technology neutrality • Fixed WiMAX network in Sweden (3.5 GHz) • 3.6-3.8 GHz band • Used for FWA in some European countries • Licenses soon to be allocated in Sweden • Technology neutrality • IMT-2000 Advanced • 400 MHz – 5 GHz

  26. Spectrum for Mobile and Nomadic Services European Allocations • Total • 1.27 GHz with IMT-2000 Extension • 1.08 GHz without IMT-2000 Extension • In some countries allocation @3,5 GHz - nomadic WiMAX • Usage of all spectrum necessary in order to achieve capacity GSM-900 GSM-1800 DECT UTRA FDD UTRA TDD ISM@2.45 GHz RLANs IMT-200 Ext. (2.6 GHz) Licence exempt ~ 700 MHz

  27. Flat Rate & QoS

  28. Flat rate and QoS • Customers want flat rate • Throughput varies significantly over cell • What happens when capacity becomes limitation? • How to charge without guaranteeing throughput? • Throughput guarantees • Different categories of users • Business vs. Private user • Services might rely on minimum throughput • Throughput guarantees needed • Scheduler becomes increasingly important

  29. Summary • New services: ”Save time. Kill time” • Demand for mobile data traffic shows strong increase • New accesses and enhancements on the way • Many accesses will co-exist • Heterogeneous access is a cost-efficient way to achieve both coverage and capacity

  30. AROMA Algorithms

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