CMD2011 - Joachim Horn - Network operations
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  • 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.

CMD2011 - Joachim Horn - Network operations CMD2011 - Joachim Horn - Network operations Presentation Transcript

  • Capital Markets Day 2011
    Network OperationsJoachim Horn
  • Tele2’s Infrastructure across Europe and Eurasia
    • + 16 000 GSM (2G) sites
    • + 9 000 UMTS (3G) sites
    • + 700 LTE (4G) sites
    • 70 Mobile switches
    • 50 Fixed switches
    • + 20 000 km fiber
    • + 20 000 Transmission Equipment
    • + 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
  • 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
  • 2G Data Grows More than 5x in One Year
    Throughput Sweden 2G (Mbit/s)
    >5x
  • GSM Traffic to Grow by 2.6x in Five Years
    • Data traffic is expected to exceed voice traffic by 2013.
    • 6x data traffic growth dominated by smart devices.
    • 40% increase in voice traffic driven by end user pricing.
    • 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
  • 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
  • There is still Potential: EDGE Evolution
    • Downlink Dual Carrier (DLDC) can be achieved with SW upgrade to legacy EDGE BTS’s
    • Further improvements might need HW upgrade in legacy BTS’s
    Peak bit-rates (kbps)
    Source: Ericsson, Nokia Siemens Networks
  • Data Consumption in Sweden Grows Substantially
    300
    200
    Terabyte (TB)
    100
    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
  • 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)
  • 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
  • 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
  • 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)
    • 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
  • High Level Tele2 IT Road Map Leveraging Group Synergies
    2011
    2012
    2014
    2013
    2015
    Market Area Nordic:
    • Overhaul of billing systems
    • 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
    • B2B Billing system
    basis for group wide use
    B2B billing
    Financial System
    Market Area Central:
    • Converged CRM
    • 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
    • Global HR system
    HR solution
    Enterprise
    Data Warehouse