CTA Communications CONSULTANTS FINAL System Alternatives and Recommendations Report Pima County Wireless Integrated Network (PCWIN) Arizona June 26, 2007 Pima County Wireless Integrated Network (PCWIN) FINAL System Alternatives and Recommendations Report June 26, 2007 TABLE OF CONTENTS 1.0 INTRODUCTION .................................................................................................. 6 1.1 PCWIN Project Goals and Objectives .................................................................... 6 1.2 Business Architecture Planning Overview ............................................................. 9 1.3 System Alternatives and Recommendations........................................................... 9 2.0 REGULATORY ISSUES..................................................................................... 12 2.1 Migration to Digital Technology .......................................................................... 12 2.1.1 Digital Communications Techniques.................................................................... 13 2.1.2 Advantages of Digital Technology ....................................................................... 13 2.1.2.1 Increased Capacity............................................................................................... 13 2.1.2.2 Signal Recovery................................................................................................... 14 2.1.2.3 Encryption............................................................................................................ 14 2.1.2.4 Mobile Data ......................................................................................................... 14 2.1.3 Disadvantages of Digital Technology................................................................... 15 2.1.3.1 Cost...................................................................................................................... 15 2.1.3.2 Interoperability..................................................................................................... 15 2.1.4 Project 25.............................................................................................................. 16 2.1.5 TSB-88.................................................................................................................. 17 2.2 Narrowbanding of LMR Spectrum below 512 MHz ............................................ 19 2.2.1 New Narrowband Channels .................................................................................. 19 2.2.2 Narrowband Equipment Requirements................................................................. 19 2.2.3 Deadline for Wideband Equipment Manufacture................................................. 20 2.2.4 Deadline for Migration ......................................................................................... 20 2.2.5 Deadline for Wideband Applications.................................................................... 20 2.2.6 Trunking in the VHF and UHF Bands.................................................................. 20 2.2.7 Impact of Narrowbanding on Agencies’ Communications .................................. 21 2.3 The 700-MHz Public Safety Band........................................................................ 21 2.3.1 Congressional Action............................................................................................ 21 2.3.2 Objectives ............................................................................................................. 22 2.3.3 State Licenses........................................................................................................23 2.3.4 Regional Planning Committees............................................................................. 23 2.3.5 Availability ........................................................................................................... 24 2.4 The 800-MHz Rebanding Plan ............................................................................. 24 2.4.1 The Current Situation............................................................................................ 24 2.4.1.1 Existing Frequency Allocations at 800-MHz ...................................................... 24 2.4.1.2 Interference mechanisms ..................................................................................... 26 2.4.2 The FCC Rebanding Plan ..................................................................................... 27 Table of Contents Page 1 of 146 Pima County Wireless Integrated Network (PCWIN) FINAL System Alternatives and Recommendations Report June 26, 2007 2.4.3 Rebanding Management ....................................................................................... 29 2.4.4 Timetable .............................................................................................................. 29 2.4.5 Regional Timetable............................................................................................... 30 2.4.6 Application Freeze................................................................................................ 30 2.4.7 Conclusion ............................................................................................................ 31 2.5 Fixed Microwave Services Relocation ................................................................. 32 2.5.1 The Lower 2-GHz Band........................................................................................ 32 2.5.2 The Upper 2-GHz Band........................................................................................ 32 2.5.2.1 Relocations by AWS Licensees........................................................................... 33 2.5.2.2 Relocations by MSS Licensees............................................................................ 33 2.5.3 Conclusion ............................................................................................................ 33 2.6 The 4.9 GHz Band ................................................................................................ 34 2.6.1 Band Plan.............................................................................................................. 34 2.6.2 Licensing and Coordination.................................................................................. 34 3.0 VOICE RADIO TECHNOLOGIES ..................................................................... 35 3.1 Voice Radio System Alternatives ......................................................................... 35 3.1.1 Trunked Radio – Project 25 Technology.............................................................. 35 3.1.2 Trunked Radio – Proprietary Technology ............................................................ 40 3.1.3 Conventional Radio – Project 25 Technology...................................................... 46 3.1.4 Conventional Radio – Analog Technology........................................................... 48 3.1.5 Commercial Wireless............................................................................................ 50 3.1.6 TETRA Professional Mobile Radio...................................................................... 52 3.2 Frequency Band Considerations........................................................................... 52 3.2.1 Frequency Band.................................................................................................... 52 3.2.1.1 700 MHz Band..................................................................................................... 53 3.2.1.2 800 MHz Band..................................................................................................... 54 3.2.1.3 VHF and UHF Bands........................................................................................... 54 3.2.1.4 Frequency Coordination with Mexico ................................................................. 55 3.3 Impact Analysis.................................................................................................... 56 3.4 Impact Results - Voice Radio Systems................................................................. 58 TABLE 3-1 TRUNKED P25 SERVICES ............................................................ 61 TABLE 3-2 CONVENTIONAL P25 SERVICES................................................ 63 TABLE 3-3 IMPACT ANALYSIS RESULTS – VOICE SYSTEM TECHNOLOGIES – COMBINED LAW AND FIRE...................... 64 TABLE 3-4 IMPACT ANALYSIS RESULTS – VOICE SYSTEM TECHNOLOGIES – LAW ENFORCEMENT................................. 65 TABLE 3-5 IMPACT ANALYSIS RESULTS – VOICE SYSTEM TECHNOLOGIES – FIRE DEPARTMENTS.................................. 66 Table of Contents Page 2 of 146 Pima County Wireless Integrated Network (PCWIN) FINAL System Alternatives and Recommendations Report June 26, 2007 FIGURE 3-1 IMPACT BLOCK DIAGRAM.................................................... 67 4.0 MOBILE DATA SYSTEM TECHNOLOGIES................................................... 68 4.1 Mobile Data System Alternatives ......................................................................... 68 4.1.1 Stand-Alone Mobile Data Systems....................................................................... 69 4.1.2 Integrated Mobile Data and Voice Systems.......................................................... 71 4.1.3 Commercial Wireless............................................................................................ 73 4.2 Impact Analysis.................................................................................................... 75 4.3