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Sprint Network Vision

Sprint Network Vision. IEEE Santa Clara Michael Finegan Manager, ESG Solutions Engineering. What is Sprint’s Network Evolution Plan. Customer Benefits Expected improvement in coverage and capacity ( In-building coverage gets significant boost)

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Sprint Network Vision

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  1. Sprint Network Vision IEEE Santa Clara Michael Finegan Manager, ESG Solutions Engineering

  2. What is Sprint’s Network Evolution Plan • Customer Benefits • Expected improvement in coverage and capacity (In-building coverage gets significant boost) • Simplicity (device & network automatically chooses best service type and frequency) • Rapid network deployment and coverage expansion • Key Plan Elements • Replacement of multiple platforms (CDMA, iDEN, WiMAX) with a single multi-modal platform • Integrated chipset on devices making services seamless to end users • Harnesses technology advancements improve the reach and overall of performance of our radio signals • Optimization and improved utilization of vast spectrum holdings across 800MHz, 1.9GHz, and 2.5GHz • Move from hardware solutions to software solutions • Integral support for next generation Push-To-Talk network • Sprint Benefits • Lower cost for Sprint • Improved operational efficiency and reliability • Future technology protection • Environmental sustainability (via reduction in power consumption)

  3. Sprint’s Wireless Networks Today A Simplified View The Sprint wireless network is made up of CDMA and iDEN technologies. These networks are deployed independently, but in some cases can share network hardware. In addition, the 4G network being builtby Clearwire shares some network hardware. Network Spectrum Network Use Towers Backhaul iDEN Towers PTT Voice Some data iDEN 800/ 900 MHz T-1 • T-1 or many T-1’s depending on # of carriers and data consumption • Significant OpEx • Revenue to Vz & ATT CDMA & iDEN Co-located T-1 Voice 1xRTT Data Rev A CDMA PTT CDMA Towers CDMA 1.9 GHz T-1 • Microwave rings between towers with dark or leased fiber at one to three centers • Connections to Internet (Sprint link) bandwidth changes depending on # of channels and data consumption • Lower CapEx Cell sites dedicated to WiMAX WiMAX 2.5GHz IP Data only Microwave

  4. Vision: Building Blocks to Evolution Capacity Increase Implement 1x Advanced Push-To-Talk Modernization Expand CDMA PTT platform, operate on 1x, enhanced features, iDEN migration RF Performance Enhancement Reduce intra-footprint roaming Site Modernization Single Cell Site Platform Spectrum Redeployment Effectively reuse spectrum to support current & future technologies Backhaul Deploy microwave infrastructure Core Network Modernization Consolidate MSC’s / Update Infrastructure

  5. Evolution: A Single Site • Today: • Separate networks with a technology and spectrum linkage: • iDEN at 800MHz, CDMA at 1.9GHz, 4G in 2.5GHz • Future: • Decouple network/ frequencies relationship • Multi-modal platform utilizes all frequencies for any technologyand any purpose (voice/data) 1.9GHz 2.5GHz 1.9GHz 800MHz 2.5GHz 800MHz • Technology advancements mean greater reach and efficiency for each frequency • Utilization of all frequencies means more efficient use of capacity (e.g. 2.5GHz) and reach (e.g. 800MHz)

  6. Evolution Dramatically Reduces OpEx Cell Site (Future State) Cell Site (Current state) Evolving to the site of tomorrow, network technologies are consolidated into a single hardware element, each technology becoming a blade or card instead of its own unique infrastructure Separate boxes for each technology Power & HVAC Power & HVAC iDEN 1xRTT EVDO WiMAX 4G 2.0 WiMAX Blades or cards in a single box for each technology EVDO CDMA Voice PTT OPEN

  7. Sprint’s Wireless Networks in The Future Network Spectrum Network Use Towers Backhaul • Consolidate traditional T-1 backhaul to microwave where feasible • Use traditional wireline backhaul on a site by site basis • Leverages Sprint’s core IP network for transport • Little or no capital expenses over traditional methods • All towers use all spectrum • All towers support all network uses • Able to reduce number of sites by one third and provide more services CDMA Voice PTT CDMA EVDO WiMAX 4G 2.0 Microwave 800/ 900 MHz 1900 MHz 2.5GHz T-1 Customer Value Enhanced service levels means higher customer satisfaction Microwave backhaul provides fast network growth flexibility Broader coverage Better in-building coverage Sustainability - Network footprint for the future Greener network design

  8. Conclusion • A significant customer benefit of a multi-mode network infrastructure is improved coverage and quality. • A major contributing factor to this improvement is the planned deployment of CDMA 1X Advanced. This CDMA upgrade is expected to improve the reach and overall performance of CDMA radio signals, while providing landline quality voice service. • In-building coverage should improve as a result of repurposing a portion of iDEN spectrum (800 MHz) for CDMA services, giving customers the benefit better coverage and quality inherent with 800 MHz spectrum. • The transition to a multi-mode platform provides the opportunity to offer devices with integrated chipsets that can receive radio signals from multiple frequencies.

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