aubidamax
2011-12-22, 12:08 AM
hi
this is a Air Interface Dimensioning guideline from NSN ... i think is good doc...
Table of Contents
1. Introduction ....................................................................... 11
2. Air interface dimensioning process ................................... 12
3. Dimensioning Concept Details - Link budget ..................... 14
3.1 General parameters .................................................................................... 14
3.1.1 Operating band ........................................................................................... 14
3.1.2 Channel bandwidth ..................................................................................... 16
3.2 Tx/Rx Path Parameters .............................................................................. 18
3.2.1 eNodeB and UE transmission power .......................................................... 18
3.2.2 Power allocation ......................................................................................... 19
3.2.3 Antenna gain .............................................................................................. 20
3.2.4 Cable losses ............................................................................................... 20
3.2.5 Other losses ............................................................................................... 23
3.2.6 Receiver noise figure .................................................................................. 23
3.3 Frame structure .......................................................................................... 23
3.3.1 Frame structure for FD-LTE ........................................................................ 24
3.3.2 Frame structure for TD-LTE ........................................................................ 26
3.3.3 Frame synchronization for TD-LTE ............................................................. 27
3.4 Overhead Factors ....................................................................................... 28
3.4.1 Cyclic Prefix (CP) ....................................................................................... 29
3.4.2 Control data overhead ................................................................................ 30
3.4.3 Estimated overhead .................................................................................... 38
3.4.4 TD-LTE system overhead ........................................................................... 40
3.5 Link Adaptation ........................................................................................... 42
3.5.1 MCS selection in the link budget ................................................................. 43
3.6 Channel model ........................................................................................... 50
3.7 Multi-antenna systems ................................................................................ 51
3.8 Frequency scheduling gain ......................................................................... 53
3.9 Link Budget Margins ................................................................................... 56
3.9.1 Fading margin ............................................................................................ 57
3.9.2 Interference margin .................................................................................... 61
3.9.3 Gain against shadowing ............................................................................. 67
3.10 Maximum allowable path loss ..................................................................... 67
3.10.1 Equivalent Isotropic Radiated Power .......................................................... 68
3.10.2 Receiver sensitivity ..................................................................................... 68
3.11 Clutter types and simulation cases ............................................................. 70
3.12 Propagation models .................................................................................... 70
3.12.1 One slope model ........................................................................................ 71
3.12.2 Two slope model ........................................................................................ 72
3.12.3 Cell range estimation .................................................................................. 73
3.12.4 UL and DL balancing .................................................................................. 73
3.13 Radio network configuration ....................................................................... 73
3.13.1 Cell area, site area and site-to-site distance ............................................... 74
3.14 HARQ – Hybrid Automatic Repeat Request ................................................ 77
3.14.1 HARQ gain calculation................................................................................ 77
3.15 Data and VoIP dimensioning ...................................................................... 78
3.15.1 Data dimensioning ...................................................................................... 79
3.15.2 VoIP dimensioning ...................................................................................... 79
3.15.3 TTI Bundling ............................................................................................... 81
4. Site capacity ..................................................................... 84
4.1 Cell load impact .......................................................................................... 85
4.2 MIMO impact .............................................................................................. 87
4.3 Cell capacity estimation procedure ............................................................. 88
5. Traffic Model ..................................................................... 90
6. Site count computation ..................................................... 91
7. Baseband dimensioning .................................................... 92
7.1 Flexi Multiradio BTS ................................................................................... 93
7.2 HW Capacity dimensioning ......................................................................... 94
7.2.1 User Plane impact ...................................................................................... 94
7.2.2 Cell range impact ....................................................................................... 95
7.2.3 Number of sites calculation ......................................................................... 98
7.3 Exemplary baseband dimensioning ............................................................ 99
7.3.1 Assumptions: .............................................................................................. 99
7.3.2 Active users calculation (recommended) .................................................. 100
7.3.3 Active users calculation (aggressive) ........................................................ 100
7.3.4 Example summary .................................................................................... 101
8. RNT_LTE_Dim Quick User Guide ................................... 102
8.1 Structure ................................................................................................... 102
8.2 Link Budget Sheet .................................................................................... 102
8.2.1 FDD and TDD dimensioning Scenarios .................................................... 104
8.2.2 Allowed path loss for technology, configuration and clutter ....................... 105
8.2.3 Scenario Dependent Default Sets ............................................................. 124
8.2.4 Parameters for Clutter/Propagation specific MAPL calculation ................. 125
8.3 Cell Capacity Sheet .................................................................................. 130
8.4 Traffic Model Sheet .................................................................................. 131
8.5 Site Count Computation Sheet ................................................................. 134
8.5.1 Upper part of the Site Count Computation Sheet ...................................... 134
8.5.2 Lower part of the Site Count Computation Sheet ...................................... 135
http://www.4shared.com/rar/IA74r1ff/NSN_t.html
please add thanks and reputation
this is a Air Interface Dimensioning guideline from NSN ... i think is good doc...
Table of Contents
1. Introduction ....................................................................... 11
2. Air interface dimensioning process ................................... 12
3. Dimensioning Concept Details - Link budget ..................... 14
3.1 General parameters .................................................................................... 14
3.1.1 Operating band ........................................................................................... 14
3.1.2 Channel bandwidth ..................................................................................... 16
3.2 Tx/Rx Path Parameters .............................................................................. 18
3.2.1 eNodeB and UE transmission power .......................................................... 18
3.2.2 Power allocation ......................................................................................... 19
3.2.3 Antenna gain .............................................................................................. 20
3.2.4 Cable losses ............................................................................................... 20
3.2.5 Other losses ............................................................................................... 23
3.2.6 Receiver noise figure .................................................................................. 23
3.3 Frame structure .......................................................................................... 23
3.3.1 Frame structure for FD-LTE ........................................................................ 24
3.3.2 Frame structure for TD-LTE ........................................................................ 26
3.3.3 Frame synchronization for TD-LTE ............................................................. 27
3.4 Overhead Factors ....................................................................................... 28
3.4.1 Cyclic Prefix (CP) ....................................................................................... 29
3.4.2 Control data overhead ................................................................................ 30
3.4.3 Estimated overhead .................................................................................... 38
3.4.4 TD-LTE system overhead ........................................................................... 40
3.5 Link Adaptation ........................................................................................... 42
3.5.1 MCS selection in the link budget ................................................................. 43
3.6 Channel model ........................................................................................... 50
3.7 Multi-antenna systems ................................................................................ 51
3.8 Frequency scheduling gain ......................................................................... 53
3.9 Link Budget Margins ................................................................................... 56
3.9.1 Fading margin ............................................................................................ 57
3.9.2 Interference margin .................................................................................... 61
3.9.3 Gain against shadowing ............................................................................. 67
3.10 Maximum allowable path loss ..................................................................... 67
3.10.1 Equivalent Isotropic Radiated Power .......................................................... 68
3.10.2 Receiver sensitivity ..................................................................................... 68
3.11 Clutter types and simulation cases ............................................................. 70
3.12 Propagation models .................................................................................... 70
3.12.1 One slope model ........................................................................................ 71
3.12.2 Two slope model ........................................................................................ 72
3.12.3 Cell range estimation .................................................................................. 73
3.12.4 UL and DL balancing .................................................................................. 73
3.13 Radio network configuration ....................................................................... 73
3.13.1 Cell area, site area and site-to-site distance ............................................... 74
3.14 HARQ – Hybrid Automatic Repeat Request ................................................ 77
3.14.1 HARQ gain calculation................................................................................ 77
3.15 Data and VoIP dimensioning ...................................................................... 78
3.15.1 Data dimensioning ...................................................................................... 79
3.15.2 VoIP dimensioning ...................................................................................... 79
3.15.3 TTI Bundling ............................................................................................... 81
4. Site capacity ..................................................................... 84
4.1 Cell load impact .......................................................................................... 85
4.2 MIMO impact .............................................................................................. 87
4.3 Cell capacity estimation procedure ............................................................. 88
5. Traffic Model ..................................................................... 90
6. Site count computation ..................................................... 91
7. Baseband dimensioning .................................................... 92
7.1 Flexi Multiradio BTS ................................................................................... 93
7.2 HW Capacity dimensioning ......................................................................... 94
7.2.1 User Plane impact ...................................................................................... 94
7.2.2 Cell range impact ....................................................................................... 95
7.2.3 Number of sites calculation ......................................................................... 98
7.3 Exemplary baseband dimensioning ............................................................ 99
7.3.1 Assumptions: .............................................................................................. 99
7.3.2 Active users calculation (recommended) .................................................. 100
7.3.3 Active users calculation (aggressive) ........................................................ 100
7.3.4 Example summary .................................................................................... 101
8. RNT_LTE_Dim Quick User Guide ................................... 102
8.1 Structure ................................................................................................... 102
8.2 Link Budget Sheet .................................................................................... 102
8.2.1 FDD and TDD dimensioning Scenarios .................................................... 104
8.2.2 Allowed path loss for technology, configuration and clutter ....................... 105
8.2.3 Scenario Dependent Default Sets ............................................................. 124
8.2.4 Parameters for Clutter/Propagation specific MAPL calculation ................. 125
8.3 Cell Capacity Sheet .................................................................................. 130
8.4 Traffic Model Sheet .................................................................................. 131
8.5 Site Count Computation Sheet ................................................................. 134
8.5.1 Upper part of the Site Count Computation Sheet ...................................... 134
8.5.2 Lower part of the Site Count Computation Sheet ...................................... 135
http://www.4shared.com/rar/IA74r1ff/NSN_t.html
please add thanks and reputation