1. 1© Nokia Siemens Networks Confidential Realities of LTE Deployment Bill Payne Head of Innovation Team CTO Office

2. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: Agenda Expectations Deployment Case Study Challenges Conclusion Long Term Evolution (LTE) Performance

3. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / LTE Performance Exceeded early LTE Targets Results confirm LTE’s value and leadership Key Performance Metrics 1 – Infrastructure 20MHz TD-LTE Single User Peak Throughput Downlink (Mbps) 172.8 Single User Peak Throughput Uplink (Mbps) 85.6 Round Trip Time for a 32 byte Ping <10 ms Handover Interruption Time (inter-eNB) 279.5 ms Average Sector Throughput Downlink/Uplink (Mbps) 33.4/15.2 Connection Setup delay 11ms VOIP capacity (Max Simultaneous Users) – G.711 Codec 95 Users 1 – Achieved results from network trials

4. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / Operators expect 66% of delivered services will be video or video related applications 1 Capacity and Performance 1 Meet the demands of Mobile Broadband Over half of all mobile operators expect security to be a key component in their network Reliability and Security 2 Unify and deliver subscriber data across network and services Operators expect up to 20% TCO savings annually on their network by deploying LTE Total Cost of Ownership 3 Enable cost effective networks Commercial Expectations 1 – Cisco Virtual Networking index

5. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / Network Details 2.3GHz TD-LTE 20MHz Bandwidth (DL 2X2 MIMO & UL 1X2 SIMO) 9 Sectors @ 4W (36dBm) Dense Urban outdoor coverage Full Evolved Packet core with PCRF and HSS Test Cases RF Test Control Plane/User Plane Latencies & HARQ Mechanism Call Continuity and Handovers Applications LTE Manager Fail Safety and MME Switchover Network Case Study Trial Network Coverage Area - 1.87 by 1.42 Miles

6. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / Quality of Service functionality Handover Delay Interference Overall Performance Radio Access Network Deployment Challenge Examples User Equipment Network Management Planning & Optimization UL Tx Power Battery life End to End Management Configuration Management Performance Management Fault Management Network Configuration Performance – e.g., Handover Optimization DL Application throughput in the drive test route

7. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / Sample Test Case Findings RF Path Balance Challenges Significant interference between sectors resulting in very low througput (DL and UL) Position 1 - Sector 95 interfering with Sector 98 Position 2 – Sector 95 interfering with Sector 96 or 97 Possible Actions Multi-frequency Network with inter- frequency handoff features UE Power Class ICIC Techniques Smaller cells with lower DL Tx power - AWT-like solutions

8. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / Control Plane Latency Measuring average network registration time (ATTACH) under different RF conditions Possible Actions - Medium RF conditions for RSRP and SNIR Sample Test Case Findings Message Run #1Run #2Run #3Run #4 Av (ms) Time Delta (ms)Time Delta (ms)Time Delta (ms)Times Delta (ms) PDN Connection Request55:72731802:61130752:77328255:975312304.75 RRC Connection Request55:75528902:63927952:80125456:003284276.5 Attach Complete56:04402:91853:05556:287N/A Network Performance Determining download throughput performance as a function of the Signal to Interference ratio (SIR) measurement Table 1: Control Plane Latency UL Application Throughput as a function of SIR Measurement

9. R 255 G 211 B 8 R 255 G 175 B 0 R 127 G 16 B 162 R 163 G 166 B 173 R 104 G 113 B 122 R 234 G 234 B 234 R 175 G 0 B 51 R 0 G 0 B 0 R 255 G 255 B 255 Supporting colors: R 52 G 195 B 51 Primary colors: / User Equipment: Introducing additional UE Power Class with higher Max UL Tx power will allow better mobile devices performance in an urban environment (multi-path and/or indoor coverage) Planning & Optimization: Solutions such as SON can enable efficient deployments of 4G networks, and optimize them to deliver better performance Network Management: End-to-end network visibility and ability to check each UE activity status will offer operators tremendous value in service delivery Radio Access Network: Small cells and indoor solutions will play a big role in addressing network capacity & improved subscriber experience in densely populated area due to RF propagation and lack of low TX power radios Conclusions