Your SlideShare is downloading. ×

CMD2011 - Joachim Horn - Network operations

3,491

Published on

0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
3,491
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
113
Comments
0
Likes
2
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • What is the difference between WCDMA and LTE?WCDMA was specified in the 3GPP release 99 and 4 of the specification, while LTE was specified in the 3GPP release 8 and 9. Unlike WCDMA, LTE supports variable bandwidth from 1.25MHz to 20MHz. When the data rates are compared, LTE provides massive downlink and uplink speeds than WCDMA. Also, the spectral efficiency is much higher in LTE than that of the WCDMA. LTE provides much simpler and flat network architecture than that of the WCDMA. CS core network part of WCDMA, which includes MGW and MSC Server is completely replaced by PS core in LTE using the SAE-GW and MME. Also, the PS core nodes of WCDMA that consists of GGSN and SGSN are replaced by the same SAE-GW and MME respectively. RNC and Node-B nodes in WCDMA architecture are completely replaced by more flat architecture with only eNode-B in LTE. New interface between eNode-B’s are introduced in LTE, which is not available under WCDMA. LTE is more optimized for IP packet based services; there is no circuit switch core with the WCDMA. LTE provides more flexibility than that of WCDMA when comes to network topology and scalability. In general, WCDMA is considered as 3G technology while LTE is considered as 4G technology.LTE provides higher data rates than WCDMA by achieving higher spectral efficiency. Also, LTE technology provide more flat architecture that is mainly focused on IP packet based services than that of the WCDMA. LTE topology is much more flexible and scalable than of the WCDMA due to the flat nature of architecture.
  • Growth regardsfrom 2010 to 2015!
  • Today’s state-of-the-art EDGE networks typically offer user speeds of 200kbps, with end-to-end round-trip time (latency) of 150ms.Features like advanced link quality control and persistent scheduling have improved performance significantly over standard GPRS and the first implementations of EDGE. For example, the time it takes to download a web page is about one-quarter of that taken with standard GPRS. Network efficiency also impacts end-user performance. Compared with basic implementations, the latest EDGE systems have greatly improved resource utilization, multiplexing capabilities for several users and other capabilities that maximize network efficiency.
  • The QoS and policy control in LTE are much richer and flexible.LTE is much better optimized for short packet transmission.What is the difference between WCDMA and LTE?WCDMA was specified in the 3GPP release 99 and 4 of the specification, while LTE was specified in the 3GPP release 8 and 9. Unlike WCDMA, LTE supports variable bandwidth from 1.25MHz to 20MHz. When the data rates are compared, LTE provides massive downlink and uplink speeds than WCDMA. Also, the spectral efficiency is much higher in LTE than that of the WCDMA. LTE provides much simpler and flat network architecture than that of the WCDMA. CS core network part of WCDMA, which includes MGW and MSC Server is completely replaced by PS core in LTE using the SAE-GW and MME. Also, the PS core nodes of WCDMA that consists of GGSN and SGSN are replaced by the same SAE-GW and MME respectively. RNC and Node-B nodes in WCDMA architecture are completely replaced by more flat architecture with only eNode-B in LTE. New interface between eNode-B’s are introduced in LTE, which is not available under WCDMA. LTE is more optimized for IP packet based services; there is no circuit switch core with the WCDMA. LTE provides more flexibility than that of WCDMA when comes to network topology and scalability. In general, WCDMA is considered as 3G technology while LTE is considered as 4G technology.LTE provides higher data rates than WCDMA by achieving higher spectral efficiency. Also, LTE technology provide more flat architecture that is mainly focused on IP packet based services than that of the WCDMA. LTE topology is much more flexible and scalable than of the WCDMA due to the flat nature of architecture.
  • Transcript

    • 1. Capital Markets Day 2011
      Network OperationsJoachim Horn
    • 2. Tele2’s Infrastructure across Europe and Eurasia
      • + 16 000 GSM (2G) sites
      • 3. + 9 000 UMTS (3G) sites
      • 4. + 700 LTE (4G) sites
      • 5. 70 Mobile switches
      • 6. 50 Fixed switches
      • 7. + 20 000 km fiber
      • 8. + 20 000 Transmission Equipment
      • 9. + 30 000 Routers
    • Strategy
      2600 Mhz
      2100 Mhz
      1800 Mhz
      900 Mhz
      800 Mhz
      Sweden *
      Estonia
      Latvia
      Lithuania
      Croatia
      Norway
      Russia
      Kazakhstan
      Netherlands
      Tele2’s Frequency Portfolio
      20
      20
      20
      40
      20
      2G, 3G, 4G
      11
      15**
      20
      16
      2G, 3G, 4G
      11
      24,8
      20
      2G, 3G, 4G
      11,2
      24,2
      20
      2G, 3G, 4G
      Tech neutral
      15
      5
      12
      2G, 3G, 4G
      5
      15
      4G
      2G, 3G, 4G
      ***
      1-2
      15-20
      2G, 4G
      3G
      11
      5
      20
      2G, 3G
      2G
      20
      4G
      * Share portfolio in Joint Ventures with Telia 900/2100 and Telenor 800/1800/2600
      ** Estonia also has 5 Mhz TDD
      *** some regions
    • 10. Mobile Data Evolution Progressing for All Standards
      013
      EDGE
      DL: 474 kbpsUL: 474 kbps
      Evolved EdgeDL: 1,89 MbpsUL:947 kbps
      2G
      HSPA
      DL: 14.4 MbpsUL:5.76Mbps
      In 5 MHz
      Rel 7 HSPA+
      DL: 28 MbpsUL:11.5Mbps
      In 5 MHz
      Rel 8 HSPA+
      DL: 42 MbpsUL:11.5Mbps
      In 5 MHz
      Rel 8 HSPA+
      DL: 84 MbpsUL:23Mbps
      In 10 MHz
      3G
      LTE
      DL: 326 Mbps
      UL: 86 Mbps
      In 20 MHz
      LTE(Rel 9)
      LTE advancedDL: > 1 Gbps
      4G
    • 11. 2G Data Grows More than 5x in One Year
      Throughput Sweden 2G (Mbit/s)
      >5x
    • 12. GSM Traffic to Grow by 2.6x in Five Years
      • Data traffic is expected to exceed voice traffic by 2013.
      • 13. 6x data traffic growth dominated by smart devices.
      • 14. 40% increase in voice traffic driven by end user pricing.
      • 15. Subscription growth is driven by M2M segment.
      Global GSM Traffic
      GSM Subscriptions by Technology
      Source: Nokia Siemens Networks GSM traffic forecast, June 2011
      Billions
      Exa Bytes / Annual
    • 16. Current EDGE Systems have Greatly Improved End-User Performance and Network Efficiency
      Typical live network performance indicators and application performance
      Source: Ericsson
      GPRS
      EDGE
      1st release
      EDGE
      State of the art
    • 17. There is still Potential: EDGE Evolution
      • Downlink Dual Carrier (DLDC) can be achieved with SW upgrade to legacy EDGE BTS’s
      • 18. Further improvements might need HW upgrade in legacy BTS’s
      Peak bit-rates (kbps)
      Source: Ericsson, Nokia Siemens Networks
    • 19. Data Consumption in Sweden Grows Substantially
      300
      200
      Terabyte (TB)
      100
      20
    • 20. HSPA: Continuous Evolution of Peak Data Rates ahead
      336 – 672 Mbps
      Release 10
      Release 11+
      168 Mbps
      Release 9
      40 MHz
      2x2 / 4x4 MIMO
      84 Mbps
      Release 8
      42 Mbps
      20 MHz
      2x2 MIMO
      Release 7
      28 Mbps
      Release 5
      10 MHz
      2x2 MIMO
      14 Mbps
      Downlink
      10 MHz
      No MIMO
      5 MHz
      2x2 MIMO
      Release 11+
      5 MHz
      No MIMO
      70 Mbps
      Release 9
      23 Mbps
      Release 7
      11.52 Mbps
      Release 6
      10 MHz
      64 QAM
      MIMO
      5,76 Mbps
      Uplink
      10 MHz
      16QAM
      5 MHz
      16QAM
      Source: Nokia Siemens Networks
      5 MHz
      QPSK
    • 21. Transition to LTE Offers Improved Customer Experience, Scale & Economy
      LTE’s strengths (vs. HSPA+)
      • Freq. span 700 MHz-> 2.6 GHz
      - 87%
      Peak Throughput (Mbps)
      Source: Capgemini TME Strategy Lab Analysis; Motorola Whitepaper, Upgrade Strategies for Mass Market Mobile Broadband, 2009;
      3G Americas, HSPA to LTE Advanced, September 2009; Morgan Stanley Research
      Latency (ms)
    • 22. Much Higher Efficiencies will be Achieved:
      Downlink Spectral Efficiency (bits/sec/Hz/sector)
      Source: Capgemini TME Strategy Lab Analysis; Motorola Whitepaper, Upgrade Strategies for Mass Market Mobile Broadband, 2009;
      3G Americas, HSPA to LTE Advanced, September 2009; Morgan Stanley Research
      Relative Cost per bit of Transmitted Data
    • 23. 800-900 MHz Offer Significant Coverage Advantages
      DL power
      800 MHz
      UL power (typical limitation for coverage)
      2.6 GHz
      Source: Kim Kyllesbech Larsen, 4G World China 2011, May 20th, 2011, Beijing
      Large
      Very small
      Coverage area
      x9x6 x4.5x1
      2.6 GHz 2.1 GHz 1.8 GHz 900 MHz – 800 MHz
    • 24. Current Technologies Give Maximum Flexibility in Broadband Upgrade Path
      LTE Refarming Example for 1800 MHz
      Example of Refarming Strategies
      10 MHz
      LTE = 1.2 MHz
      = 6 GSM carriers
      LTE = 2.8 MHz
      = 14 GSM carriers
      LTE = 4.6 MHz
      = 23 GSM carriers
      • Choice of GSM/HSPA/LTE defined by software download (same frequency band)
      • 25. Scalable bandwidth of LTE allows spectrum migration in line with capacity requirements
    • Technology Roadmap – 3G and 4G
      Tele2 Sweden
      H1 2010
      H2 2010
      2012
      H1 2011
      H2 2011
      2013
      3G Network
      3G 2100
      28 Mbps
      3G 2100
      42 Mbps*
      4G Network
      4G 2600
      160 Mbps
      Coverage & capacityroll-out
      4G 900
      80 Mbps
      Coverage & capacityroll-out
      4G
      300 Mbps
      3G Devices
      3G 2100
      28 Mbps
      3G 2100
      42 Mbps
      4G 2600
      Pre release
      modems
      4G 2600
      Commercial
      modems
      4G 900
      Commercial modems
      4G 900/2600
      Commercial routers
      4G Devices
      4G
      Commercial handsets
      4G
      300 Mbps
      Available
      Planned
      Indicative
    • 26. High Level Tele2 IT Road Map Leveraging Group Synergies
      2011
      2012
      2014
      2013
      2015
      Market Area Nordic:
      • Overhaul of billing systems
      • 27. Converged CRM solution
      SWE: prepaid
      Buckets data& mms
      SWE: MBB
      SWE:
      Residential
      mobile
      SWE:
      Business
      mobile
      SWE: Fixed
      SWE:
      Online charging
      Market Area Russia:
      • B2B CRM solution
      • 28. B2B Billing system
      basis for group wide use
      B2B billing
      Financial System
      Market Area Central:
      • Converged CRM
      • 29. Billing system
      Croatia:
      CRM only
      Estonia
      Croatia
      Latvia
      Lithuania
      LV&EE
      HR&LT
      Prepaidbuckets
      data & MMS
      Netherlands:
      • CRM Solution
      NL: Fixedresidential
      NL: Mobile residential
      NL: Business
      Tele2 Group:
      • New enterprise data warehouse platform
      • 30. Global HR system
      HR solution
      Enterprise
      Data Warehouse

    ×