khurrambilal01
2012-07-18, 02:49 PM
CONTENTS
1. INTRODUCTION..........................................................................................................................5
1.1 GENERAL DESCRIPTION OF FREQUENCY HOPPING...........................................................................51.2 FREQUENCY HOPPING MODES ........................................................................................................61.3 CELL ALLOCATION ........................................................................................................................81.4 MOBILE ALLOCATION ....................................................................................................................91.5 HOPPING SEQUENCE NUMBER ........................................................................................................91.6 MOBILE ALLOCATION INDEX OFFSET .............................................................................................91.7 MAIO STEP................................................................................................................................10
2. THEORETICAL PERFORMANCE OF FREQUENCY HOPPING.........................................11
2.1 FREQUENCY DIVERSITY ...............................................................................................................11
2.1.1 Coherence Bandwidth..........................................................................................................112.1.2 Effect of Interleaving ...........................................................................................................132.1.3 Cyclic vs. Random Hopping Sequences................................................................................142.1.4 Simulated Frequency Diversity Gains..................................................................................142.1.5 Effect in Cell Coverage Area ...............................................................................................162.1.6 Effect of Mobile Speed.........................................................................................................16
2.2 INTERFERENCE DIVERSITY ...........................................................................................................162.3 EFFECT OF POWER CONTROL AND DTX........................................................................................18
3. NOKIA’S SUPPORT FOR FREQUENCY HOPPING IN GSM................................................20
3.1 BSS LEVEL IMPLEMENTATION .....................................................................................................203.2 THE 2ND GENERATION BASE STATION..........................................................................................203.3 TALK FAMILY BASE STATION.......................................................................................................213.4 PRIMESITE..................................................................................................................................223.5 BASE STATION CONTROLLER........................................................................................................233.6 NPS/X........................................................................................................................................233.7 MAXIMUM CONFIGURATIONS .......................................................................................................233.8 RADIO NETWORK FAULT MANAGEMENT ......................................................................................24
3.8.1 The 2nd Generation Base Station.........................................................................................253.8.2 Talk Family Base Stations and PrimeSite ............................................................................25
3.9 RESTRICTIONS ON THE USAGE OF FH............................................................................................25
3.9.1 DL Power Control with BB FH............................................................................................253.9.2 Downlink DTX.....................................................................................................................263.9.3 Extended Range Cell (DE34/DF34/DG35) ..........................................................................263.9.4 MS Speed Detection.............................................................................................................263.9.5 Half Rate............................................................................................................................263.9.6 Frequency Sharing ..............................................................................................................263.9.7 RTC Combiner ....................................................................................................................263.9.8 NPS/X.................................................................................................................................26
4. SELECTING THE RIGHT HOPPING STRATEGY.................................................................275. FREQUENCY PLANNING OF FREQUENCY HOPPING NETWORKS ...............................295.1 NETWORK PLANNING PROCEDURE................................................................................................29
5.2 FREQUENCY PLANNING PROCEDURE WITH NPS/X ........................................................................305.3 FREQUENCY REUSE ON FREQUENCY HOPPING NETWORK ..............................................................33
5.3.1 Effective Reuse ....................................................................................................................345.3.2 Frequency Allocation Reuse (RF FH only) ..........................................................................34
5.4 LOAD ON NETWORKS UTILISING FRACTIONAL LOADING (RF FH ONLY) ........................................35
5.4.1 Frequency Load...................................................................................................................355.4.2 Hard Blocking Load ............................................................................................................365.4.3 Fractional Load...................................................................................................................37
5.5 TRUNKING EFFECT AND EFFECTIVE REUSE ...................................................................................385.6 FREQUENCY ALLOCATION STRATEGIES ........................................................................................40
5.6.1 BCCH Allocation.................................................................................................................405.6.2 Selecting the Effective Reuse (BB FH) .................................................................................435.6.3 Selecting the Frequency Allocation Reuse and the Frequency Load (RF FH).......................445.6.4 Frequency Sharing by Using MAIO Management (RF FH only) ..........................................465.6.5 Frequency Sharing in the Single MA-list Scheme (RF FH only) ...........................................50
6. RADIO NETWORK PARAMETERS .........................................................................................52
6.1 PARAMETERS FOR MA-LIST DEFINITIONS IN BSC .........................................................................526.2 BTS LEVEL FH RELATED PARAMETERS .......................................................................................546.3 POWER CONTROL........................................................................................................................566.4 HANDOVER.................................................................................................................................586.5 DTX...........................................................................................................................................59
6.5.1 Uplink DTX .........................................................................................................................596.5.2 Downlink DTX.....................................................................................................................59
7. OPTIMISATION.........................................................................................................................60
7.1 TOOLS FOR NETWORK MONITORING.............................................................................................607.2 KPIS FOR HOPPING NETWORK......................................................................................................607.3 RXQUAL IN FH NETWORKS .......................................................................................................617.4 IDLE CHANNEL INTERFERENCE MEASUREMENT ............................................................................657.5 CYCLIC AND RANDOM HOPPING SEQUENCES ................................................................................667.6 INTRACELL HANDOVER................................................................................................................697.7 POWER CONTROL........................................................................................................................69
7.7.1 Downlink Power Control with BB Hopping .........................................................................70
7.8 HANDOVER CONTROL ..................................................................................................................707.9 HSN PLANNING WITH RANDOM HOPPING.....................................................................................70
8. PLANNING CASES .....................................................................................................................71
8.1 PLANNING CASE 1: SINGLE MA-LIST............................................................................................71
8.1.1 Frequency Planning ............................................................................................................718.1.2 MAIO Planning ...................................................................................................................72
8.2 PLANNING CASE 2: RF FH WITH FRACTIONAL LOADING (FAR 3 – 5) ...........................................75
8.2.1 Defining the Frequency Band and the Number of Frequencies Needed in Each Cell ............758.2.2 Frequency Allocation and Analysis......................................................................................77
8.3 PLANNING CASE 3: RF FH WITH FREQUENCY SHARING................................................................78
8.3.1 Frequency Planning ............................................................................................................788.3.2 MAIO Planning ...................................................................................................................798.3.3 Analysis..............................................................................................................................80
1. INTRODUCTION..........................................................................................................................5
1.1 GENERAL DESCRIPTION OF FREQUENCY HOPPING...........................................................................51.2 FREQUENCY HOPPING MODES ........................................................................................................61.3 CELL ALLOCATION ........................................................................................................................81.4 MOBILE ALLOCATION ....................................................................................................................91.5 HOPPING SEQUENCE NUMBER ........................................................................................................91.6 MOBILE ALLOCATION INDEX OFFSET .............................................................................................91.7 MAIO STEP................................................................................................................................10
2. THEORETICAL PERFORMANCE OF FREQUENCY HOPPING.........................................11
2.1 FREQUENCY DIVERSITY ...............................................................................................................11
2.1.1 Coherence Bandwidth..........................................................................................................112.1.2 Effect of Interleaving ...........................................................................................................132.1.3 Cyclic vs. Random Hopping Sequences................................................................................142.1.4 Simulated Frequency Diversity Gains..................................................................................142.1.5 Effect in Cell Coverage Area ...............................................................................................162.1.6 Effect of Mobile Speed.........................................................................................................16
2.2 INTERFERENCE DIVERSITY ...........................................................................................................162.3 EFFECT OF POWER CONTROL AND DTX........................................................................................18
3. NOKIA’S SUPPORT FOR FREQUENCY HOPPING IN GSM................................................20
3.1 BSS LEVEL IMPLEMENTATION .....................................................................................................203.2 THE 2ND GENERATION BASE STATION..........................................................................................203.3 TALK FAMILY BASE STATION.......................................................................................................213.4 PRIMESITE..................................................................................................................................223.5 BASE STATION CONTROLLER........................................................................................................233.6 NPS/X........................................................................................................................................233.7 MAXIMUM CONFIGURATIONS .......................................................................................................233.8 RADIO NETWORK FAULT MANAGEMENT ......................................................................................24
3.8.1 The 2nd Generation Base Station.........................................................................................253.8.2 Talk Family Base Stations and PrimeSite ............................................................................25
3.9 RESTRICTIONS ON THE USAGE OF FH............................................................................................25
3.9.1 DL Power Control with BB FH............................................................................................253.9.2 Downlink DTX.....................................................................................................................263.9.3 Extended Range Cell (DE34/DF34/DG35) ..........................................................................263.9.4 MS Speed Detection.............................................................................................................263.9.5 Half Rate............................................................................................................................263.9.6 Frequency Sharing ..............................................................................................................263.9.7 RTC Combiner ....................................................................................................................263.9.8 NPS/X.................................................................................................................................26
4. SELECTING THE RIGHT HOPPING STRATEGY.................................................................275. FREQUENCY PLANNING OF FREQUENCY HOPPING NETWORKS ...............................295.1 NETWORK PLANNING PROCEDURE................................................................................................29
5.2 FREQUENCY PLANNING PROCEDURE WITH NPS/X ........................................................................305.3 FREQUENCY REUSE ON FREQUENCY HOPPING NETWORK ..............................................................33
5.3.1 Effective Reuse ....................................................................................................................345.3.2 Frequency Allocation Reuse (RF FH only) ..........................................................................34
5.4 LOAD ON NETWORKS UTILISING FRACTIONAL LOADING (RF FH ONLY) ........................................35
5.4.1 Frequency Load...................................................................................................................355.4.2 Hard Blocking Load ............................................................................................................365.4.3 Fractional Load...................................................................................................................37
5.5 TRUNKING EFFECT AND EFFECTIVE REUSE ...................................................................................385.6 FREQUENCY ALLOCATION STRATEGIES ........................................................................................40
5.6.1 BCCH Allocation.................................................................................................................405.6.2 Selecting the Effective Reuse (BB FH) .................................................................................435.6.3 Selecting the Frequency Allocation Reuse and the Frequency Load (RF FH).......................445.6.4 Frequency Sharing by Using MAIO Management (RF FH only) ..........................................465.6.5 Frequency Sharing in the Single MA-list Scheme (RF FH only) ...........................................50
6. RADIO NETWORK PARAMETERS .........................................................................................52
6.1 PARAMETERS FOR MA-LIST DEFINITIONS IN BSC .........................................................................526.2 BTS LEVEL FH RELATED PARAMETERS .......................................................................................546.3 POWER CONTROL........................................................................................................................566.4 HANDOVER.................................................................................................................................586.5 DTX...........................................................................................................................................59
6.5.1 Uplink DTX .........................................................................................................................596.5.2 Downlink DTX.....................................................................................................................59
7. OPTIMISATION.........................................................................................................................60
7.1 TOOLS FOR NETWORK MONITORING.............................................................................................607.2 KPIS FOR HOPPING NETWORK......................................................................................................607.3 RXQUAL IN FH NETWORKS .......................................................................................................617.4 IDLE CHANNEL INTERFERENCE MEASUREMENT ............................................................................657.5 CYCLIC AND RANDOM HOPPING SEQUENCES ................................................................................667.6 INTRACELL HANDOVER................................................................................................................697.7 POWER CONTROL........................................................................................................................69
7.7.1 Downlink Power Control with BB Hopping .........................................................................70
7.8 HANDOVER CONTROL ..................................................................................................................707.9 HSN PLANNING WITH RANDOM HOPPING.....................................................................................70
8. PLANNING CASES .....................................................................................................................71
8.1 PLANNING CASE 1: SINGLE MA-LIST............................................................................................71
8.1.1 Frequency Planning ............................................................................................................718.1.2 MAIO Planning ...................................................................................................................72
8.2 PLANNING CASE 2: RF FH WITH FRACTIONAL LOADING (FAR 3 – 5) ...........................................75
8.2.1 Defining the Frequency Band and the Number of Frequencies Needed in Each Cell ............758.2.2 Frequency Allocation and Analysis......................................................................................77
8.3 PLANNING CASE 3: RF FH WITH FREQUENCY SHARING................................................................78
8.3.1 Frequency Planning ............................................................................................................788.3.2 MAIO Planning ...................................................................................................................798.3.3 Analysis..............................................................................................................................80