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View Full Version : Inband Tandem Free Operation (TFO) of speech codecs



ninoy_122184
2011-12-09, 10:15 PM
1 Scope..............................................................................................................................10
2 References .....................................................................................................................10
3 Definitions and abbreviations..........................................................................................11
3.1 Definitions.....................................................................................................................11
3.2 Abbreviations ................................................................................................................12
4 General Description.........................................................................................................14
4.1 Background Information ..............................................................................................14
4.2 Principle of TFO Operation..........................................................................................15
4.2.1 Principle for TFO Operation for Narrow-Band speech codec types ...........................15
4.2.2 Principle for TFO Operation for Wide-Band speech codec types (i.e. AMR-W...........18
4.3 TFO Standard Version Handling................................................................................19
4.4 Document Content...................................................................................................20
5 TFO Frame Structure...................................................................................................21
5.1 General ........................................................................................................................21
5.2 TFO Frames for 16 kbit/s sub-multiplexing ...............................................................21
5.2.1 TFO Frames for GSM Full Rate and GSM Enhanced Full Rate ..............................21
5.2.2 TFO Frames for the Adaptive Multi Rate Family..........................
5.2.2.1 TFO Frame Format AMR_TFO_16k......................................................22
5.2.2.2 TFO Frame Format AMR_TFO_8+8k....................................................25
5.2.2.3 TFO Frame Format AMR_WB_TFO_16k and AMR_WB_TFO_32k............27
5.2.3 Transmission of the bits of 16 kbit/s TFO Frames...................................29
5.2.3a Transmission of the bits of 32 kbit/s TFO Frames.................................29
5.2.4 Transmission of the bits of AMR_TFO_8+8k Frames ................................30
5.2.5 Optional AMR_TRAU_8+8k Frames......................................................30
5.3 TFO Frames for 8 kbit/s sub-multiplexing .................................................31
5.3.1 TFO Frame for the GSM Half Rate .....................................................31
5.3.2 Transmission of the bits of 8 kbit/s TFO frames.................................31
5.4 Void...................................................................................................32
5.5 Determination of the TFO Frame format ......................................................32
5.6 Codec Types in TFO Frames.....................................................32
6 Elementary Procedures for TFO Operation.......................................................32
6.1 Pre-synchronisation of IPEs ...............................................................................32
6.2 TFO Negotiation ............................................................................................33
6.3 Codec Mismatch Resolution.............................................................................33
6.4 TFO Establishment...........................................................................................34
6.5 Codec Optimisation..........................................................................................34
6.6 TFO Termination..........................................................................................35
6.7 TFO Fast Establishment after Local Handover ..........................................35
7 TFO Messages...................................................................................................36
7.1 Extendibility..............................................................................................38
7.2 Regular and Embedded TFO Messages..............................................................38
7.3 Cyclic Redundancy Check ..................................................................................38
7.4 TFO_REQ Messages.............................................................................................39
7.4.1 Definition of the SIG_LUC Extension_Block .....................................................40
7.4.2 Definition of the Codec_x Extension_Block ..................................................40
7.4.3 Definition of the Codec_List_Extension_Block ..................................................41
7.4.4 Definition of the Codec_Attribute_Head Extension_Block..................................41
7.4.5 Definition of the TFO_Version Extension_Block .................................................42

[/URL]

[url]http://www.mediafire.com/download.php?7ty0sc14lacor4c (http://www.mediafire.com/?lvand9ek1e742dd)

pioneerelex
2011-12-10, 07:57 AM
Hi ninoy,

Showing the CONTENTS of the document is a very good idea:victory:

Many thanks

ninoy_122184
2011-12-10, 09:55 AM
Hi ninoy,

Showing the CONTENTS of the document is a very good idea:victory:

Many thanks

this is better,, read first the contents before download if the reader dont like it he can save save his credits.:D

hendral
2011-12-10, 01:54 PM
1 Scope..............................................................................................................................10
2 References .....................................................................................................................10
3 Definitions and abbreviations..........................................................................................11
3.1 Definitions.....................................................................................................................11
3.2 Abbreviations ................................................................................................................12
4 General Description.........................................................................................................14
4.1 Background Information ..............................................................................................14
4.2 Principle of TFO Operation..........................................................................................15
4.2.1 Principle for TFO Operation for Narrow-Band speech codec types ...........................15
4.2.2 Principle for TFO Operation for Wide-Band speech codec types (i.e. AMR-W...........18
4.3 TFO Standard Version Handling................................................................................19
4.4 Document Content...................................................................................................20
5 TFO Frame Structure...................................................................................................21
5.1 General ........................................................................................................................21
5.2 TFO Frames for 16 kbit/s sub-multiplexing ...............................................................21
5.2.1 TFO Frames for GSM Full Rate and GSM Enhanced Full Rate ..............................21
5.2.2 TFO Frames for the Adaptive Multi Rate Family..............................................................
5.2.2.1 TFO Frame Format AMR_TFO_16k....................................................................................................22
5.2.2.2 TFO Frame Format AMR_TFO_8+8k..................................................................................................25
5.2.2.3 TFO Frame Format AMR_WB_TFO_16k and AMR_WB_TFO_32k.................................................27
5.2.3 Transmission of the bits of 16 kbit/s TFO Frames......................................................................................29
5.2.3a Transmission of the bits of 32 kbit/s TFO Frames......................................................................................29
5.2.4 Transmission of the bits of AMR_TFO_8+8k Frames ...............................................................................30
5.2.5 Optional AMR_TRAU_8+8k Frames.........................................................................................................30
5.3 TFO Frames for 8 kbit/s sub-multiplexing .......................................................................................................31
5.3.1 TFO Frame for the GSM Half Rate ............................................................................................................31
5.3.2 Transmission of the bits of 8 kbit/s TFO frames.........................................................................................31
5.4 Void..................................................................................................................................................................32
5.5 Determination of the TFO Frame format .........................................................................................................32
5.6 Codec Types in TFO Frames............................................................................................................................32
6 Elementary Procedures for TFO Operation............................................................................................32
6.1 Pre-synchronisation of IPEs .............................................................................................................................32
6.2 TFO Negotiation ..............................................................................................................................................33
6.3 Codec Mismatch Resolution.............................................................................................................................33
6.4 TFO Establishment...........................................................................................................................................34
6.5 Codec Optimisation..........................................................................................................................................34
6.6 TFO Termination..............................................................................................................................................35
6.7 TFO Fast Establishment after Local Handover ................................................................................................35
7 TFO Messages........................................................................................................................................36
7.1 Extendibility.....................................................................................................................................................38
7.2 Regular and Embedded TFO Messages............................................................................................................38
7.3 Cyclic Redundancy Check ...............................................................................................................................38
7.4 TFO_REQ Messages........................................................................................................................................39
7.4.1 Definition of the SIG_LUC Extension_Block ............................................................................................40
7.4.2 Definition of the Codec_x Extension_Block ..............................................................................................40
7.4.3 Definition of the Codec_List_Extension_Block .........................................................................................41
7.4.4 Definition of the Codec_Attribute_Head Extension_Block........................................................................41
7.4.5 Definition of the TFO_Version Extension_Block ......................................................................................42

http://www.mediafire.com/?lvand9ek1e742dd


Please you check your file, Not same with its contents you write on above.

ninoy_122184
2011-12-10, 07:01 PM
Please you check your file, Not same with its contents you write on above.

sorry for that sir,, i copied the wrong link,,
http://www.mediafire.com/download.php?7ty0sc14lacor4c