LTE LTE-Advanced is the evolution of the official name for Further Advancements for E-UTRA, 2008 began in March, in May 2008 to determine the needs. It meets the ITU-R IMT-Advanced technology collection needs, not only the formation of the European 3GPP proposal for IMT-Advanced technology is an important source, or a backward-compatible technology, fully compatible with LTE, the evolution rather than revolution.
RESEARCH AND ANALYSIS A new report from Eden Rock Communications: WiMAX 802.16m and LTE How and Why WiMAX Operators Will Migrate to LTE The increased customer demand for high bandwidth data services has accelerated the urgency for operators to deploy broadband 4G networks. From the perspective of a current WiMAX operator the leading evolution path candidates are WiMAX 802.16m and 3GPP Long‐Term Evolution (LTE). The battle for mindshare has been fierce between the two camps with each claiming the high ground. Now is the time for operators to reassess their strategies for network evolution in order to meet the rapidly www.edenrockcomm.com increasing network capacity demands presented by data‐centric mobile +1.425.318.1200 devices. This report provides operators with the vital information required firstname.lastname@example.org for assessing how each standard meets the goals set forth in their evolution strategy. A decision to proceed down the 3GPP path to LTE is an obvious choice for mainstream cellular vendors, but there are a number o E Feedback on Eden Rock Communications of greenfield operators and operators who have already “Eden Rock’s unique expertise in 4G wireless systems has deployed WiMAX technology who are now considering their proven to be of real benefit to Motorola.” network evolution plans. The best strategy will account for the ‐ Bruce Brda, Motorola SVP, Home & Networks Division technologies and their capabilities; the implications to the carrier’s current and future business; and each standard’s “Eden Rock provides Axtel with unique 4G technology ecosystem and future market projections. Eden Rock’s expertise spanning airlink technology, system/product conclusion is that the majority of WiMAX operators should design, network planning, and network deployment. Eden continue to deploy WiMAX in the short‐ to mid‐term and migrate Rock has demonstrated strong problem solving for even to LTE in the long term. This report explains why that is the case, the most complex issues that can arise in 4G and provides carriers with a starting point for discussions about deployments.” their own strategy and potential transition. ‐ Ivan Alonso Hernandez, Axtel Chief Technology Officer Questions answered in this report: “The Eden Rock team has a long‐standing, proven track • How do the 802.16e, 802.16m, LTE Release 8/9 and record of expertise and innovations in 4G wireless LTE Release 10 standards/technologies compare? technologies.” • How do new technologies impact the performance of ‐ Laurence Seifert, AT&T Wireless EVP (retired), Airbiquity 802.16e, 802.16m, LTE Release 8/9 and LTE Release Chairman 10? “Eden Rock possesses strong expertise in 4G wireless • What spectrum is identified for deployment of these systems and has proven to Elektrobit its capabilities in standards? embedded software development for wireless systems.” • What are 4G vendors planning to build? ‐ Jani Lyrintzis, Elektrobit VP & GM, Wireless Solutions • Which technology provides better backwards compatibility? About Eden Rock Communications • What is the best technology path for WiMAX The Eden Rock team has strong expertise in system design, operators? product development, innovation, and network deployment of • Is it viable for WiMAX operators to migrate from 4G (OFDM‐based, IP‐centric) technologies spanning a 15‐year 802.16e to LTE? period. Experienced in many disciplines—including Radio Resource Management, MIMO, software defined radio, packet data scheduling, and signal processing algorithm design and Pricing and Ordering Information implementation—Eden Rock’s engineering team has authored • $1,995 USD (single‐user license) more than 100 OFDM‐ and wireless‐related patents that find application today in base stations, subscriber equipment, and • $3,995 USD (corporate site license) network management tools around the world. Since 2007, Eden To obtain a copy of the report, contact us by Rock has provided strategic expert consulting services to email at 4g‐email@example.com or by industry‐leading WiMAX and LTE operators and OEM’s. Additionally, Eden Rock is developing highly‐innovative LTE Self phone at +1.425.318.1200 Organizing Network (SON) software solutions and has filed more than thirty patents with the USPTO in this space. 22722 29th DR SE STE 150, Bothell, WA 98021 • T (425) 318.1200 • F (425) 481.4444 • www.edenrockcomm.com RESEARCH AND ANALYSIS Table of Contents 1. Introduction 6.6. Chipsets 1.1. Overview 7. Evolution Paths for Existing 802.16e Network Operators 1.2. About Eden Rock Communications™ 7.1. WiMAX Network Evolution Path 1.3. Scope 7.1.1. Radio Access Considerations 1.4. 4G Candidate Standards 7.1.2. 16e/16m Compatibility Mode Option 1.4.1. WiMAX 802.16e 7.1.3. 16m Overlay Option 1.4.2. WiMAX 802.16m 7.1.4. Core Network Evolution to 802.16m 1.4.3. 3GPP LTE (Rel‐8/9) 7.2. LTE Evolution Path 1.4.4. 3GPP LTE‐Advanced (Rel‐10) 7.2.1. LTE Radio Access Considerations 2. Executive Summary of Eden Rock Report Findings 7.2.2. LTE/WiMAX Overlay Option 3. Technology Comparison of 4G Standards 7.2.3. LTE/3GPP Overlay Option 3.1. Downlink Radio Technology 7.2.4. LTE Core Network Considerations 3.1.1. Orthogonal Frequency‐Division Multiplexing (OFDM) 7.2.5. WiMAX/LTE Mobility Considerations 3.1.2. OFDM Usage in 4G Standards 7.2.6. Roaming Architecture 3.2. UL Radio technology 7.2.7. TD‐LTE and 802.16e Coexistence Considerations 3.3. Channel duplexing A. References 3.4. Spectrum reuse B. About Eden Rock 3.5. Downlink MIMO List of Tables 3.5.1. MIMO Techniques 3.5.2. Downlink MIMO in LTE Table 1 ‐ Summary Comparison of 4G Technologies 3.5.3. DL MIMO in WiMAX/16e Table 2 ‐ WiMAX Service Flow QoS Parameter Summary 3.5.4. DL MIMO in WiMAX/16m Table 3 ‐ Standardized LTE QoS Classes 3.5.5. DL MIMO summary Table 4 ‐ IEEE 802.16m Latency Specifications 3.6. UL MIMO Table 5 ‐ LTE‐Advanced Latency Specifications 3.6.1. UL MIMO in LTE Table 6 ‐ 802.16e and LTE peak spectral efficiencies 3.6.2. UL MIMO in WiMAX/16e Table 7 ‐ LTE Advanced Target Spectral Efficiency 3.6.3. UL MIMO in WiMAX/16m Table 8 ‐ LTE RF bands (Rel‐9) 3.6.4. UL MIMO Summary Table 9 ‐ LTE‐Advanced RF bands 3.7. Adaptive Beam Forming Table 10 ‐ WiMAX Forum 802.16e RF bands 3.8. Quality of Service Table 11 ‐ 802.16m target bands 3.9. Multimedia Broadcast and Multicast Services Table 12 ‐ 3GPP Member Demographics 3.10. Relay Table 13 ‐ IEEE 802.16 Member Demographics 3.11. Mobility Table 14 ‐ 3GPP wireless market data 2Q09 3.12. Power saving Table 15 ‐ Other wireless market data 2Q09 3.13. Security in Mobile Wireless Network Table 16 ‐ TD‐LTE timing options 3.14. Backwards compatibility List of Figures 3.14.1. Backwards compatibility of 802.16m Figure 1 ‐ OFDM subcarriers, frequency domain 3.14.2. LTE Release 8/9/10 Compatibility Figure 2 ‐ Throughput vs. Probability of Coverage Comparison with 3.15. Core network architecture and without Fractional Frequency Reuse 3.16. Self Organizing Network (SON) Figure 3 ‐ IEEE 802.16m Compatibility Mode Frame Structure 3.16.1. Managing 4G Networks Figure 4 ‐ 16e Map Overhead Percentage With and Without 3.17. System Performance Persistent Allocations 3.17.1. Spectral efficiency Figure 5 ‐ WiMAX and LTE Network Logical Diagrams 3.17.2. Throughput Figure 6 ‐ Comparison of typical downlink spectral efficiencies 3.17.3. Channel latency Figure 7 ‐ Comparison of typical uplink spectral efficiencies 4. 4G Spectrum Figure 8 ‐ Average Throughput and Percentage of Subscribers as a 4.1. LTE Function of Distance from the Base Station 4.2. LTE‐Advanced Figure 9 ‐ User Protocol Stack Comparison 4.3. Mobile WiMAX (802.16e) Figure 10 ‐ 3GPP RAT Latency in Milliseconds 4.4. Next Generation Mobile WiMAX (802.16m) Figure 11 ‐ 3GPP Organization Structure 5. Standardization Figure 12 ‐ IEEE 802.16 Membership by Corporate Entity 5.1. IEEE 802.16 and the WiMAX Forum Figure 13 ‐ 3GPP Membership by Corporate Entity 5.2. LTE and 3GPP Figure 14 ‐ GDP by Country ($T) 5.3. Relative Participation Figure 15 ‐ 802.16 Attendance 6. Industry Ecosystem Figure 16 ‐ EPC / WiMAX Interworking Architecture 6.1. Wireless Subscriber Consumer Figure 17 ‐ Proposed Data Plane with Proxy‐Mobile IPv6 6.2. Traditional Cellular Operator Figure 18 ‐ Home Routed Roaming Reference Architecture 6.3. Greenfield Operator Figure 19 ‐ Home Routed (Relay) Roaming Reference Architecture 6.4. Infrastructure Equipment Figure 20 ‐ Alignment of IEEE 802.16m Frame and E‐UTRA Frame in 6.5. Subscriber Devices/More info TDD Mode 22722 29th DR SE STE 150, Bothell, WA 98021 • T (425) 318.1200 • F (425) 481.4444 • www.edenrockcomm.com
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