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Charting the Course for Mobile Broadband: Heading Towards HighPerformance All-IP with LTE/SAE


Network Evolution: Heading a more powerful Mobile Network with LTE/SAE

Executive Summary
Contents 02 03 03 05 06 08 09 Executive Summary Background Market drivers and expectations User benefits Operator expectations System approach Optimizing total value of ownership with Nokia SiemensNetworks` LTE/SAE Conclusions Abbreviations Nokia Siemens Networks expects five billion people to be connected to the web by 2015. Wireless access to the Internet will be in step with wireline access. Access via mobile phone supporting enhanced data applications will complement notebook based usage. Wireless networks will be used to extend broadband penetration beyond the reach of wirelinenetworks. More and more user communities will enjoy multimedia services, driving total bandwidth demand. This affords mobile network operators a business opportunity they can capitalize on by improving their networks’ performance and efficiency. With a view to taking the next step up the evolutionary ladder beyond HSPA, 3GPP Rel8 has standardized a technology called Long Term Evolution/System ArchitectureEvolution (LTE/SAE). It is designed to • Make the most of scarce spectrum resources: Deployable in paired spectrum allocations with bandwidths ranging from 1.4 MHz to 20 MHz, LTE/SAE provides up to four times the spectral efficiency of HSDPA Release 6 • Afford users an experience on par with today’s best residential broadband access: LTE/SAE delivers peak user data rates ranging up to 173 Mbpsand reduces latency to as low as 10 ms • Leverage flat all-IP network architecture and a new air interface to significantly cut per-Mbyte costs, with later product innovations potentially improving performance even further: For instance a 4x4 Multiple Input/ Multiple Output (MIMO) scheme will boost downlink rates up to 326 Mbps Nokia Siemens Networks takes a cost-effective approach to introducingLTE/SAE, enabling GSM-/WCDMA-, CDMA-, and greenfield network operators to grow their business and margins in the fast-approaching era of ubiquitous mobile broadband.

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Network Evolution: Heading a more powerful Mobile Network with LTE/SAE

The Internet has changed many people’s lives in the last decade. Services delivered across the web now supplant many offlineprocesses. The Internet has become a major delivery platform for text, music, video, and the like. All this has spurred broadband’s growth. With broadband adoption outpacing cellular voice, Nokia Siemens Networks predicts that five billion people will enjoy Internet access by 2015. What’s more, broadband is tracing mobile telephony’s trajectory, becoming a widespread service to be enjoyed by the useranywhere, anytime. More and more people are embracing mobile broadband and enjoying data-heavy video content. This coincidental development presents a promising business opportunity for network operators, who responded by launching HSDPA and flat rates in 2006, attracting many business users. And while this user segment may be small compared to the huge consumer market, overall mobile datatraffic grew tenfold in many networks. Mobile broadband users will expect services, data rates, VoIP and multimedia capabilities similar to those enjoyed by fixed broadband users today, at affordable prices. This is why NGMN Ltd., a group of globally active mobile operators determined to match DSL offerings’ performance and cost, has raised the bar for the next generation of mobile networks (NGMN).Seeking to satisfy these demands, Nokia Siemens Networks and its parent companies participated in the Long Term Evolution (LTE) and System Architecture Evolution (SAE) studies conducted by the Third Generation Partnership Project (3GPP). LTE/SAE aims to improve performance and cost-efficiency with a more efficient air interface, more flexible use of radio spectrum, and flat, packetbased network...
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