Table of Contents
1 LTE/SAE OVERVIEW........................................................................7
1 INTRODUCTION ...............................................................................8
1.1 LTE REQUIREMENTS .................................................................14
1.2 LTE RADIO INTERFACE..............................................................19
2 SUMMARY.......................................................................................42
2 LTE L13 AIR INTERFACE...............................................................43
1 INTRODUCTION .............................................................................44
1.1 MEDIUM ACCESS CONTROL (MAC)..........................................46
2 CHANNEL STRUCTURE.................................................................50
2.1 LOGICAL CHANNELS..................................................................50
2.2 TRANSPORT CHANNELS ...........................................................52
2.3 PHYSICAL CHANNELS................................................................53
3 TIME-DOMAIN STRUCTURE..........................................................55
4 DOWNLINK TRANSMISSION TECHNIQUE ...................................60
4.1 LOCALIZED AND DISTRIBUTED VIRTUAL RESOURCE
BLOCKS ................................................................................................65
4.2 CELL SPECIFIC REFERENCE SIGNAL FREQUENCY
SHIFTING ..............................................................................................69
4.3 UE SPECIFIC REFERENCE SIGNALS........................................70
5 DOWNLINK TRANSPORT-CHANNEL PROCESSING ...................72
6 DOWNLINK L1/L2 CONTROL SIGNALING ....................................75
6.1 PCFICH – PHYSICAL CONTROL FORMAT INDICATOR
CHANNEL..............................................................................................77
6.2 PDCCH – PHYSICAL DOWNLINK CONTROL CHANNEL ..........78
6.3 DRX IN ACTIVE MODE ................................................................92
6.4 SERVICE SPECIFIC DRX............................................................93
7 DOWNLINK PHYSICAL-LAYER PROCEDURE..............................97
7.1 POWER CONTROL......................................................................97
7.2 LINK ADAPTATION ......................................................................98
7.3 PAGING – PHYSICAL LAYER ASPECTS....................................98Table of Contents
1 LTE/SAE OVERVIEW........................................................................7
1 INTRODUCTION ...............................................................................8
1.1 LTE REQUIREMENTS .................................................................14
1.2 LTE RADIO INTERFACE..............................................................19
2 SUMMARY.......................................................................................42
2 LTE L13 AIR INTERFACE...............................................................43
1 INTRODUCTION .............................................................................44
1.1 MEDIUM ACCESS CONTROL (MAC)..........................................46
2 CHANNEL STRUCTURE.................................................................50
2.1 LOGICAL CHANNELS..................................................................50
2.2 TRANSPORT CHANNELS ...........................................................52
2.3 PHYSICAL CHANNELS................................................................53
3 TIME-DOMAIN STRUCTURE..........................................................55
4 DOWNLINK TRANSMISSION TECHNIQUE ...................................60
4.1 LOCALIZED AND DISTRIBUTED VIRTUAL RESOURCE
BLOCKS ................................................................................................65
4.2 CELL SPECIFIC REFERENCE SIGNAL FREQUENCY
SHIFTING ..............................................................................................69
4.3 UE SPECIFIC REFERENCE SIGNALS........................................70
5 DOWNLINK TRANSPORT-CHANNEL PROCESSING ...................72
6 DOWNLINK L1/L2 CONTROL SIGNALING ....................................75
6.1 PCFICH – PHYSICAL CONTROL FORMAT INDICATOR
CHANNEL..............................................................................................77
6.2 PDCCH – PHYSICAL DOWNLINK CONTROL CHANNEL ..........78
6.3 DRX IN ACTIVE MODE ................................................................92
6.4 SERVICE SPECIFIC DRX............................................................93
7 DOWNLINK PHYSICAL-LAYER PROCEDURE..............................97
7.1 POWER CONTROL......................................................................97
7.2 LINK ADAPTATION ......................................................................98
7.3 PAGING – PHYSICAL LAYER ASPECTS....................................98
7.4 CELL SEARCH...........................................................................100
8 SYSTEM INFORMATION..............................................................104
9 PUBLIC WARNING SYSTEM........................................................108
9.1 EARTHQUAKE AND TSUNAMI WARNING SYSTEM ...............109
9.2 COMMERCIAL MOBILE ALERT SYSTEM.................................112
10 MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) ........................115
11 QUAD ANTENNA CONFIGURATIONS.......................................129
12 UPLINK RADIO ACCESS............................................................134
12.1 THE UPLINK PHYSICAL RESOURCE.....................................134
12.2 UPLINK REFERENCE SIGNALS .............................................137
13 UPLINK TRANSPORT-CHANNEL PROCESSING......................140
13.1 CRC INSERTION......................................................................140
13.2 CHANNEL CODING .................................................................140
13.3 PHYSICAL-LAYER HYBRID-ARQ FUNCTIONALITY ..............140
13.4 BIT-LEVEL SCRAMBLING .......................................................141
13.5 DATA MODULATION ...............................................................141
14 UPLINK L1/L2 CONTROL SIGNALING.......................................141
14.1 CONTROL SIGNALING ON PUCCH........................................142
14.2 CONTROL SIGNALING ON PUSCH........................................146
15 UPLINK PHYSICAL-LAYER PROCEDURES..............................150
15.1 POWER CONTROL..................................................................150
15.2 LINK ADAPTATION ..................................................................151
15.3 RANDOM ACCESS- PHYSICAL-LAYER ASPECTS................151
15.4 UPLINK TRANSMIT-TIMING CONTROL .................................159
15.5 TTI BUNDLING.........................................................................161
16 SUMMARY...................................................................................170
3 RADIO RESOURCE & MOBILITY MANAGEMENT......................171
1 INTRODUCTION ...........................................................................172
2 SCHEDULING ...............................................................................172
2.1 SCHEDULING DETAILS ............................................................175
2.2 DOWNLINK SCHEDULING FRAMEWORK ...............................179
2.3 UPLINK SCHEDULING FRAMEWORK......................................182
3 LINK ADAPTATION .......................................................................186
4 SEMI-PERSISTENT SCHEDULING..............................................187
5 INTER-CELL INTERFERENCE COORDINATION (ICIC)..............188
6 INTERFERENCE REJECTION COMBINING................................189
7 LOAD BALANCING (LB)................................................................189
8 RRM RELATED MEASUREMENTS IN LTE..................................190
9 ENB MEASUREMENTS ................................................................190
10 MOBILITY: INTRODUCTION.......................................................192
11 IDLE MODE MOBILITY ...............................................................193
11.1 NORMAL TAU ..........................................................................195
11.2 PERIODIC TAU ........................................................................195
12 CONNECTED MODE MOBILITY.................................................196
12.1 A3 EVENT.................................................................................198
12.2 INTRA-LTE HANDOVER..........................................................199
12.3 A2 EVENT.................................................................................200
12.4 EVENTS A5 AND B2 ................................................................200
12.5 EVENT A1.................................................................................202
12.6 SESSION CONTINUITY, INTER-FREQUENCY AND IRAT
HANDOVER.........................................................................................202
13 CS FALLBACK.............................................................................204
13.1 EMERGENCY CALL HANDLING .............................................206
14 INTERFREQUENCY LOAD BALANCING ...................................206
15 SUMMARY...................................................................................209
4 ACRONYMS & ABBREVIATIONS ................................................211
5 INDEX ............................................................................................221
6 TABLE OF FIGURES.....................................................................225