ETSI
TSI EN 300 744 V1.5.1 (2004
1)
Contents
Intellectual Property Rights................................................................................................................................5
Foreword.............................................................................................................................................................5
1 Scope........................................................................................................................................................6
2 References................................................................................................................................................6
3 Definitions, symbols and abbreviations ...................................................................................................7
3.1 Definitions..........................................................................................................................................................7
3.2 Symbols..............................................................................................................................................................7
3.3 Abbreviations .....................................................................................................................................................8
4 Baseline system........................................................................................................................................9
4.1 General considerations .......................................................................................................................................9
4.2 Interfacing ........................................................................................................................................................10
4.3 Channel coding and modulation.......................................................................................................................11
4.3.1 Transport multiplex adaptation and randomization for energy dispersal....................................................11
4.3.2 Outer coding and outer interleaving............................................................................................................11
4.3.3 Inner coding................................................................................................................................................14
4.3.4 Inner interleaving........................................................................................................................................14
4.3.4.1 Bit-wise interleaving.............................................................................................................................15
4.3.4.2 Symbol interleaver ................................................................................................................................19
4.3.5 Signal constellations and mapping..............................................................................................................21
4.4 OFDM frame structure.....................................................................................................................................25
4.5 Reference signals..............................................................................................................................................27
4.5.1 Functions and derivation.............................................................................................................................27
4.5.2 Definition of reference sequence ................................................................................................................27
4.5.3 Location of scattered pilot cells..................................................................................................................28
4.5.4 Location of continual pilot carriers.............................................................................................................29
4.5.5 Amplitudes of all reference information.....................................................................................................29
4.6 Transmission Parameter Signalling (TPS) .......................................................................................................29
4.6.1 Scope of the TPS ........................................................................................................................................30
4.6.2 TPS transmission format.............................................................................................................................31
4.6.2.1 Initialization ..........................................................................................................................................31
4.6.2.2 Synchronization ....................................................................................................................................31
4.6.2.3 TPS length indicator..............................................................................................................................31
4.6.2.4 Frame number .......................................................................................................................................32
4.6.2.5 Constellation .........................................................................................................................................32
4.6.2.6 Hierarchy information...........................................................................................................................32
4.6.2.7 Code rates..............................................................................................................................................32
4.6.2.8 Guard Intervals......................................................................................................................................33
4.6.2.9 Transmission mode ...............................................................................................................................33
4.6.2.10 Cell identifier ........................................................................................................................................34
4.6.2.11 Error protection of TPS.........................................................................................................................34
4.6.3 TPS modulation ..........................................................................................................................................34
4.7 Number of RS-packets per OFDM super-frame...............................................................................................35
4.8 Spectrum characteristics and spectrum mask ...................................................................................................35
4.8.1 Spectrum characteristics .............................................................................................................................35
4.8.2 Out-of-band spectrum mask (for 8 MHz channels) ....................................................................................36
4.8.3 Centre frequency of RF signal (for 8 MHz UHF channels)........................................................................39
Annex A (informative): Simulated system performance for 8 MHz channels..................................40
Annex B (informative): Definition of P
1
and F
1
...................................................................................42
Annex C (informative): Interleaving example .....................................................................................44
Annex D (informative): Guidelines to implementation of the emitted signal....................................45
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