Member
Reputation: 270
LTE RF Planning Guideline
Hi,
Please find the RF planning guidelines from Motorolla. I was reading through it and found it interesting read and someone of us has been looking for such a Guide.
Appreciate some reputation for it.
Nsn@12345678
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2011-10-09 01:12 AM
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Member
Reputation: 59
Re: LTE RF Planning Guideline
Originally Posted by
louvre
Hi,
Please find the RF planning guidelines from Motorolla. I was reading through it and found it interesting read and someone of us has been looking for such a Guide.
Appreciate some reputation for it.
Nsn@12345678
There is a error in the zip file. cannot extract
Member
Reputation: 270
Re: LTE RF Planning Guideline
I downloaded from here and check it!! it works fine.
If you think this has been useful adding to the Reputation is appreciated
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Member
Reputation: 187
Re: LTE RF Planning Guideline
Hi,
Could you please provide us more information about it, like contents, pag,...?
Thanks
Member
Reputation: 270
Re: LTE RF Planning Guideline
Here is the Table of content.
Table of Contents
1. HOW TO USE THIS GUIDE............................................................................... 21
1.1. INTRODUCTION ................................................................................................. 21
1.2. DOCUMENT SCOPE ........................................................................................... 22
1.3. QUICK GUIDE TO CONTENTS.............................................................................. 22
2. LTE AIR INTERFACE OVERVIEW AND BASIC SPECTRUM PLANNING........ 24
2.1. INTRODUCTION ................................................................................................. 24
2.2. AIR INTERFACE OVERVIEW ................................................................................ 24
2.2.1. OFDMA .................................................................................................... 24
2.2.2. Number of Subcarriers ............................................................................. 24
2.2.3. Symbol Size ............................................................................................. 25
2.2.4. Subcarrier Types ...................................................................................... 26
2.2.5. Frames ..................................................................................................... 26
2.2.5.1. FDD - Type 1 Frame............................................................................. 27
2.2.5.2. TDD - Type 2 Frame............................................................................. 29
2.2.5.3. FDD-TDD Frame Summary .................................................................. 31
2.2.6. UL Allocation (SC-FDMA)......................................................................... 32
2.2.7. Modulation Techniques ............................................................................ 33
2.2.8. Error Correction........................................................................................ 33
2.2.9. LTE Overview Summary........................................................................... 33
2.3. BASIC SPECTRUM PLANNING ............................................................................. 34
2.3.1. Operating Bands ...................................................................................... 34
2.3.2. Channel Bandwidths................................................................................. 36
2.3.3. Channel Spacing ...................................................................................... 38
2.3.4. Guard Band Considerations ..................................................................... 41
2.3.5. Additional Spectrum Information .............................................................. 42
2.3.5.1. United States ........................................................................................ 42
2.3.5.2. Outside of the United States................................................................. 47
2.4. REFERENCES ................................................................................................... 48
3. RF LINK BUDGET.............................................................................................. 49
3.1. INTRODUCTION ................................................................................................. 49
3.2. LTE RF LINK BUDGET....................................................................................... 52
3.2.1. Effective Radiated Power ......................................................................... 53
3.2.1.1. Transmit RF Power............................................................................... 54
3.2.1.2. Transmit Diversity Gain ........................................................................ 54
3.2.1.3. Tx RF Line Loss.................................................................................... 54
3.2.1.4. Transmit Antenna Gain......................................................................... 56
3.2.1.5. Transmit Adaptive Array Gain............................................................... 57
3.2.2. Effective Receiver Faded Sensitivity ........................................................ 58
3.2.2.1. Thermal Noise ...................................................................................... 59
3.2.2.2. Subcarrier ............................................................................................. 59
3.2.2.3. Noise Figure ......................................................................................... 60
3.2.2.4. Ambient Noise ...................................................................................... 63
3.2.2.5. SNR...................................................................................................... 63
3.2.2.6. Implementation Margin ......................................................................... 65
3.2.2.7. Fast Fading........................................................................................... 66
3.2.2.8. Receive Diversity Gain ......................................................................... 67
3.2.2.9. HARQ Gain........................................................................................... 68
3.2.2.10. Receive Antenna Gain........................................................................ 69
3.2.2.11. Rx RF Line Loss ................................................................................. 69
3.2.3. System Gain............................................................................................. 70
3.2.3.1. Building Loss ........................................................................................ 70
3.2.3.2. Vehicle Loss ......................................................................................... 81
3.2.3.3. Body Loss............................................................................................. 81
3.2.3.4. Foliage Loss ......................................................................................... 82
3.2.3.5. Interference Margin............................................................................... 83
3.2.3.6. Log Normal Margin ............................................................................... 84
3.2.3.7. Maximum Allowable Pathloss ............................................................... 90
3.3. LIMITING RF LINK.............................................................................................. 90
3.4. SUBSCRIBER TYPES.......................................................................................... 91
3.4.1. Fixed versus Mobile.................................................................................. 91
3.5. BASE STATION TYPES ....................................................................................... 92
3.5.1. Remote Radio Head................................................................................. 93
3.5.2. Frame Based............................................................................................ 94
3.6. REFERENCE ..................................................................................................... 95
3.6.1. Watts to dB Conversion............................................................................ 95
3.6.2. Log-Normal Fade Margin.......................................................................... 96
4. RF PROPAGATION MODELS ........................................................................... 97
4.1. INTRODUCTION ................................................................................................. 97
4.2. FREE SPACE .................................................................................................... 98
4.3. HATA ............................................................................................................. 100
4.3.1. Model Equations..................................................................................... 100
4.3.2. Example ................................................................................................. 101
4.3.3. References ............................................................................................. 102
4.4. COST-231 HATA ........................................................................................... 102
4.4.1. Model Equations..................................................................................... 103
4.4.2. Example ................................................................................................. 104
4.4.3. References ............................................................................................. 104
4.5. ERCEG-GREENSTEIN....................................................................................... 105
4.5.1. Model Equations..................................................................................... 105
4.5.2. Example ................................................................................................. 106
4.5.3. References ............................................................................................. 107
4.6. COMPARISON OF MODELS ............................................................................... 107
4.7. SEMI-DETERMINISTIC MODELS......................................................................... 110
4.8. RAY TRACING MODEL...................................................................................... 114
4.9. FACTORS IMPACTING PROPAGATION MODELS ................................................... 114
4.9.1. Frequency .............................................................................................. 114
4.9.2. Antenna Heights..................................................................................... 116
4.10. LIMITATIONS TO COVERAGE ............................................................................. 120
4.10.1. PRACH Constraints................................................................................ 120
4.10.2. Preamble Generation ............................................................................. 121
4.10.3. Uplink - Downlink Frame Timing............................................................. 123
5. LTE CAPACITY................................................................................................ 125
5.1. LTE FRAME STRUCTURES ............................................................................... 125
5.1.1. FDD Frame Structure ............................................................................. 125
5.1.2. TDD LTE Frame Structure...................................................................... 128
5.2. LAYER 1 OVERHEADS...................................................................................... 129
5.2.1. Downlink Throughput.............................................................................. 131
5.2.2. Uplink Throughput .................................................................................. 140
5.2.3. TDD Capacity ......................................................................................... 144
5.2.4. Other Overhead Messages .................................................................... 146
5.3. PEAK INSTANTANEOUS THROUGHPUT ............................................................... 149
5.4. MAXIMUM SUSTAINABLE THROUGHPUT & RETRANSMISSIONS ............................. 151
5.5. CAPACITY AND MPR AND CINR DISTRIBUTIONS................................................ 152
5.6. MAC SCHEDULER........................................................................................... 153
5.7. REFERENCE CAPACITY FIGURES ...................................................................... 156
5.8. ANTENNA SCHEMES ........................................................................................ 161
5.9. SYSTEM SPECTRAL EFFICIENCY (BPS/HZ)......................................................... 165
5.10. WORKLOAD MODELING.................................................................................... 166
5.11. REFERENCES ................................................................................................. 167
6. RF ANTENNA SYSTEMS ................................................................................ 168
6.1. INTRODUCTION ............................................................................................... 168
6.2. ANTENNA PARAMETERS................................................................................... 169
6.2.1. Antenna Gain ......................................................................................... 169
6.2.2. Physical Size .......................................................................................... 170
6.2.3. Voltage Standing Wave Ratio................................................................. 170
6.2.4. Power Rating.......................................................................................... 171
6.2.5. Antenna Polarization .............................................................................. 171
6.2.6. Antenna Beamwidth ............................................................................... 171
6.2.7. Front to Back Ratio................................................................................. 173
6.2.8. Side and Back Lobes.............................................................................. 174
6.2.9. Downtilt................................................................................................... 175
6.2.10. CPE Antenna Variations......................................................................... 184
6.3. SMART ANTENNAS .......................................................................................... 185
7. FREQUENCY REUSE ..................................................................................... 186
7.1. INTRODUCTION ............................................................................................... 186
7.1.1. Resource Block Group Reuse Sub-Pattern ............................................ 186
7.2. REUSE PATTERNS........................................................................................... 187
7.2.1. 1x3x1...................................................................................................... 187
7.2.2. 1x3x3...................................................................................................... 188
7.3. CARRIER TO INTERFERENCE PLUS NOISE RATIO ................................................ 190
7.4. LTE METHODS FOR REDUCING LOW CINR IMPACT ........................................... 191
7.4.1. Resource Block Group Assignments...................................................... 191
7.4.2. Frequency Selective Scheduling ............................................................ 191
7.4.3. Inter-Cell Interference Coordination (ICIC) ............................................. 191
7.5. METHODS TO REDUCE CO-CHANNEL INTERFERENCE ......................................... 193
8. INTER SYSTEM INTERFERENCE.................................................................. 195
8.1. INTRODUCTION ............................................................................................... 195
8.1.1. Background ............................................................................................ 195
8.1.2. Controlling Inter-System Interference..................................................... 196
8.1.3. Interference Mechanism: OOBE and Overload ...................................... 196
8.1.4. Coexistence with WiMAX ....................................................................... 197
8.2. REFERENCES ................................................................................................. 203
9. INTER-TECHNOLOGY ANTENNA SHARING................................................. 204
9.1. INTRODUCTION ............................................................................................... 204
9.2. INTER-MODULATION......................................................................................... 206
9.2.1. Nonlinear Junctions ................................................................................ 207
9.2.2. Harmonics .............................................................................................. 207
9.2.3. Inter-modulation mixing products ........................................................... 208
9.3. GATHERING CUSTOMER INFORMATION.............................................................. 211
9.3.1. Legacy Technology Configuration .......................................................... 212
9.3.2. LTE Requirements.................................................................................. 212
9.4. DETERMINE GEOGRAPHICAL REGION................................................................ 213
9.4.1. EMEA – Europe-Middle East - Africa...................................................... 213
9.4.2. NA/SA – North America – South America .............................................. 214
9.4.3. APAC – Asia - Pacific ............................................................................. 214
9.4.4. Antenna Sharing Configuration Repository ............................................ 215
9.5. INTER-SYSTEM FREQUENCY COMPATIBILITY ...................................................... 215
9.5.1. Known Potential Frequency Conflicts ..................................................... 216
9.5.1.1. Between LTE Upper 700 MHz (E-UTRA Band 12) and Lower 700 MHz
(E-UTRA Band 14) ............................................................................................. 216
9.5.1.2. Between 850 MHz Cellular (E-UTRA Band 5) and AWS (E-UTRA Band
4) 216
9.5.1.3. Between PCS Bands (E-UTRA Band 2) and AWS (E-UTRA Band 4) 216
9.5.1.4. Between a Legacy system and LTE within certain PCS blocks .......... 217
9.6. SELECTING OPTIMAL ANTENNA SHARING GOALS............................................... 217
9.7. RE-MINING SPECTRUM .................................................................................... 218
9.7.1. Separate Base Station Transmitters....................................................... 218
9.7.2. Common Base Station Equipment ......................................................... 219
9.8. TDD WITH FDD.............................................................................................. 221
9.9. FINE TUNING ANTENNA CONFIGURATIONS......................................................... 222
9.9.1. Tower Top Amplifiers.............................................................................. 222
9.9.2. Antenna Downtilt .................................................................................... 223
9.10. TECHNICAL COMPATIBILITY TOPICS FOR REFERENCE......................................... 224
9.10.1. Combining Loss...................................................................................... 224
9.10.2. Guard Bands .......................................................................................... 224
9.10.3. Duo-Band / Wide Band Antennas........................................................... 224
9.10.4. Splitters / Combiners / Filters ................................................................. 225
9.10.5. Transmit Sideband Noise ....................................................................... 225
10. OTHER RF RELATED PLANNING ITEMS ...................................................... 227
10.1. PHYSICAL CELL IDENTITY................................................................................. 227
10.2. ROOT SEQUENCE ........................................................................................... 228
AAAAhhh. Thats a very long list.
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Member
Reputation: 205
Re: LTE RF Planning Guideline
I'm sorry to say it, but me to I have an error on decompression.
Member
Reputation: 270
1 out of 1 members found this post helpful.
Re: LTE RF Planning Guideline
Bummer,
I am re uploading the files now. Sorry if caused you guys problem. hope this work.
Attached Files
If you think this has been useful adding to the Reputation is appreciated
Default Pass: Nsn@12345678
Member
Reputation: 205
Re: LTE RF Planning Guideline
Thank you very much for your effort. I tryed to decompress the file in osx and in winxp, both do fail. (unkowen compression methode)
Originally Posted by
louvre
Bummer,
I am re uploading the files now. Sorry if caused you guys problem. hope this work.
Member
Reputation: 181
Re: LTE RF Planning Guideline
use 7-zip freeware. fyi
Originally Posted by
pathloss
Thank you very much for your effort. I tryed to decompress the file in osx and in winxp, both do fail. (unkowen compression methode)
Member
Reputation: 16
Re: LTE RF Planning Guideline
Theres an error extracting the file sir,is there any way we can get this useful guide?
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