Layer3 Message Dictionary a Interface_112030064_04

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LAYER 3 MESSAGE DICTIONARY - A INTERFACE

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SiteVELIZY MOBILE COMMUNICATION DIVISION

Originator(s)

S. BOURDEAUT / R. MAUGER

LAYER 3 MESSAGE DICTIONARY - A INTERFACEB7.2

Domain : Alcatel 900/BSS

Division : PRODUCT DEFINITION

Rubric : SYS-TLA

Type : SYSTEM FUNTIONAL BLOCKS

Distribution Codes Internal : External :

PREDISTRIBUTION:

ABSTRACT

This document describes the layer 3 messages for the A interface. It is a working document andsubject to change. It is invited that all comments are passed to the author for inclusion in futureiterations.

ApprovalsName

App.

J. ACHARDSYT CCM

S. BELLENSDPM BSC

R. MAUGERDPM SYT

Name

App.


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REVIEW

Not applicable.

HISTORYRelease B1 TLA/100

Version Date Author Reason for update1.1.0.0 29/05/91 RSG APPROVED. + 2 Phase 1 CRQ:

CRQ/689: Channel mode in ASSIGN CMDCRQ/696: Coding of MS power

Release B2 S/P2/3.4.2.1

Version Date Author Reason for update2.0.0.0 29/07/92 FIRST DRAFT FOR PHASE 2. This version includes

only the new or modified messages for phase 2.Messages which were already in TLA/100 V.1.1.0.0,but which were not implemented in phase 1 (e.g.ESTABLISH REQUEST) are not considered as newmessages for the dictionary. They are NOT includedhere if there is no modification.

Release B3 3BK 11202 0044 DSZZA

Version Date Author Reason for update3.0.0.0 A. Jarvis First draft for Release 3. This document has been

converted from All-in-one to winword format. Due to itssize the message dictionary has been split into three

separate document. Air and ABIS interface messagesare GSM phase 2. A interface messages are given forboth GSM phase 1 and 2.

3.1.0.0 01/08/94 A. Jarvis Updated according to review TLAr3#9 held in MilanMinutes SYS/067


Version Date Author Reason for update4.0.0.0 13/12/94 A. Jarvis First issue for this release based on V 3.1.0.04.1.0.0 25/01/95 A. Jarvis Updated according to comments received.4.1.0.1 20/04/95 C. Demarez Updated according to comments received and to

introduce half rate features.

4.2.0.0 23/05/95 C. Demarez Updated according to review TLAr4#13 as stated inSYS/182.CRQ/1060 is included.


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Version Date Author Reason for updateEd. 01Proposal P1

10/04/96 J.J. Roy First issue for this release. Based on V 4.2.0.0 (3BK11202 0075 DSZAA).CRQ/1431 : Introduction of the extended band

CRQ/1612 : Cell Identity format in HANDOVERREQUESTCRQ/2138 : Ciphering key length checkingCRQ/2305 : DCS 1900 operations

Ed. 01Released

19/08/96 J.J. Roy Updated after review TLAr5#17 as stated inTD/SAS/LCR/1527.96

Release B6.2 3BK 11202 0187 DSZZA

Version Date Author Reason for updateEd. 01Proposal P1

05/01/98 P. Fouilland First issue for this release based on B5 document.

Ed. 01

Released

02/02/98 P. Fouilland Document released according to minutes in

TD/SAS/pfo/0166.98 and including miscellaneousminor editorial corrections.

Ed. 02Released

19/10/99 M. Wu Updated including following approved CR:

3BKA20CBR035864, v2; 3BKA20CBR039129, v1;3BKA20CBR047389, v1.

Document checked by moderator B. Landais. Noreview report.

Release B7.2 3BK 11203 0064 DSZZA

Version Date Author Reason for update

Ed. 01

Proposal P1

26/01/01 M. W u First draft for Release B7:

1) Based on the B6 document (3BK 11202 0187DSZZA, Ed02);

2) Align with the 3GPP TS (GERAN#2, R99).

Ed. 01Proposal P2

07/02/01 M. Wu Document updated according to the minutes inMCD/JV/TD/R&T Europe/SYT/mwu /091.00/Ed.01.

Ed. 01Released

14/02/01 M. Wu Document updated according to the minutes inMCD/JV/TD/R&T Europe/SYT/mwu/116.01/Ed.1 andchecked by the moderator Raphalle MAUGER.

Ed. 02 P1 27/08/01 R. Mauger Takes into account following approved CRs :

20/098533, 20/089914.Correction of inconsistencies (Phase 1 DCS1900 MSdo not exist). Clarifications.

Ed. 02Released

18/09/01 R. Mauger Only editorial comments received. No review report.

Ed. 03 P1 30/10/01 S. Bourdeaut Inclusion of the following CRs: 3BKA20CBR097211 3BKA20CBR095617

Ed. 03Released

22/11/01 R. Mauger Document updated according to review reportTD/SYT/rma/0538.2001

Ed. 04 P1 29/05/02 M. Wu Remove B7.1:

Ed. 04Released

31/05/01 M. Wu Document released after reading cycle, checked bymoderator R. Mauger, no review report.


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INTERNAL REFERENCED DOCUMENTS

Not applicable

FOR INTERNAL USE ONLY

Not applicableEND OF DOCUMENT


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SYSTEM FUNCTIONAL BLOCKS

TABLE OF CONTENTS

INTERNAL REFERENCED DOCUMENTS....................................................................................... 4REFERENCED DOCUMENTS ......................................................................................................... 5

1. INTRODUCTION ...................................................................................................................... 61.1 Scope............................................................................................................................... 6

2. GENERAL PRESENTATION.................................................................................................... 62.1 Preliminaries ................................................................................................................... 62.2 Messages presentation................................................................................................... 6

2.2.1The general overview................................................................................................ 62.2.2The general description............................................................................................. 72.2.3The information element description.......................................................................... 7

3. LIST OF THE MESSAGES....................................................................................................... 8

4. CROSS REFERENCE ON 08.08 INFORMATION ELEMENTS ...............................................11

5. DESCRIPTION OF THE HEADER ON THE A INTERFACE (GSM PH1 & PH2) .....................15

6. A INTERFACE MESSAGES ....................................................................................................186.1 ASSIGNMENT COMPLETE ............................................................................................19

6.1.1GENERAL DESCRIPTION (Phase 2 format)............................................................206.1.2GENERAL DESCRIPTION (Phase 1 format)............................................................216.1.3RR CAUSE ..............................................................................................................226.1.4CELL IDENTIFIER (new cell) ...................................................................................236.1.5CHOSEN CHANNEL................................................................................................256.1.6CHOSEN ENCRYPTION ALGORITHM....................................................................266.1.7SPEECH VERSION .................................................................................................26

6.2 ASSIGNMENT FAILURE.................................................................................................276.2.1GENERAL DESCRIPTION.......................................................................................286.2.2CAUSE ....................................................................................................................296.2.3RR CAUSE ..............................................................................................................30

6.3 ASSIGNMENT REQUEST ...............................................................................................316.3.1GENERAL DESCRIPTION (Phase 2 format)............................................................326.3.2GENERAL DESCRIPTION (Phase 1 format)............................................................346.3.3CHANNEL TYPE......................................................................................................356.3.4LAYER 3 HEADER INFORMATION.........................................................................396.3.5PRIORITY................................................................................................................406.3.6CIRCUIT IDENTITY CODE ......................................................................................416.3.7DOWNLINK DTX FLAG ...........................................................................................416.3.8CLASSMARK INFORMATION TYPE 2 (GSM PHASE 1 MS)...................................426.3.9CLASSMARK INFORMATION TYPE 2 (GSM PHASE 2 MS)...................................43

6.4 BLOCK............................................................................................................................466.4.1GENERAL DESCRIPTION.......................................................................................476.4.2CIRCUIT IDENTITY CODE ......................................................................................476.4.3CAUSE ....................................................................................................................48

6.5 BLOCKING ACKNOWLEDGE.........................................................................................496.5.1GENERAL DESCRIPTION.......................................................................................506.5.2CIRCUIT IDENTITY CODE ......................................................................................50

6.6 BSS INVOKE TRACE......................................................................................................516.6.1GENERAL DESCRIPTION.......................................................................................526.6.2TRACE TYPE ..........................................................................................................53

6.6.3FORWARD INDICATOR..........................................................................................54


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6.6.4TRIGGERID.............................................................................................................546.6.5TRACE REFERENCE ..............................................................................................556.6.6TRANSACTIONID....................................................................................................556.6.7OMCID.....................................................................................................................56

6.7 CIPHER MODE COMMAND ............................................................................................576.7.1GENERAL DESCRIPTION (Phase 2 format)............................................................58

6.7.2GENERAL DESCRIPTION (Phase 1 format)............................................................586.7.3LAYER 3 HEADER INFORMATION.........................................................................596.7.4ENCRYPTION INFORMATION................................................................................606.7.5CIPHER RESPONSE MODE ...................................................................................61

6.8 CIPHER MODE COMPLETE ...........................................................................................626.8.1GENERAL DESCRIPTION (Phase 2 format)............................................................636.8.2GENERAL DESCRIPTION (Phase 1 format)............................................................636.8.3LAYER 3 MESSAGE CONTENTS ...........................................................................636.8.4CHOSEN ENCRYPTION ALGORITHM....................................................................64

6.9 CIPHER MODE REJECT.................................................................................................656.9.1GENERAL DESCRIPTION.......................................................................................666.9.2CAUSE ....................................................................................................................66

6.10 CIRCUIT GROUP BLOCK...............................................................................................67

6.10.1.........................................................................................GENERAL DESCRIPTION 686.10.2...................................................................................................................... CAUSE 686.10.3........................................................................................ CIRCUIT IDENTITY CODE 696.10.4................................................................................CIRCUIT IDENTITY CODE LIST 70

6.11 CIRCUIT GROUP BLOCKING ACKNOWLEDGE............................................................716.11.1.........................................................................................GENERAL DESCRIPTION 726.11.2........................................................................................ CIRCUIT IDENTITY CODE 726.11.3................................................................................CIRCUIT IDENTITY CODE LIST 73

6.12 CIRCUIT GROUP UNBLOCK..........................................................................................746.12.1.........................................................................................GENERAL DESCRIPTION 756.12.2........................................................................................ CIRCUIT IDENTITY CODE 756.12.3................................................................................CIRCUIT IDENTITY CODE LIST 76

6.13 CIRCUIT GROUP UNBLOCKING ACKNOWLEDGE.......................................................77

6.13.1.........................................................................................GENERAL DESCRIPTION 786.13.2........................................................................................ CIRCUIT IDENTITY CODE 786.13.3................................................................................CIRCUIT IDENTITY CODE LIST 79

6.14 CLASSMARK REQUEST ................................................................................................806.14.1.........................................................................................GENERAL DESCRIPTION 80

6.15 CLASSMARK UPDATE ...................................................................................................816.15.1...................................................................GENERAL DESCRIPTION (Phase 1 MS) 826.15.2................................GENERAL DESCRIPTION (Phase 2 MS, GSM Phase 2 format) 826.15.3................................GENERAL DESCRIPTION (Phase 2 MS, GSM Phase 1 format) 826.15.4.....................................CLASSMARK INFORMATION TYPE 2 (GSM PHASE 1 MS) 836.15.5.....................................CLASSMARK INFORMATION TYPE 2 (GSM PHASE 2 MS) 846.15.6...................................................................... CLASSMARK INFORMATION TYPE 3 87

6.16 CLEAR COMMAND.........................................................................................................946.16.1.........................................................................................GENERAL DESCRIPTION 956.16.2...........................................................................LAYER 3 HEADER INFORMATION 956.16.3...................................................................................................................... CAUSE 96

6.17 CLEAR COMPLETE........................................................................................................976.17.1.........................................................................................GENERAL DESCRIPTION 97

6.18 CLEAR REQUEST ..........................................................................................................986.18.1.........................................................................................GENERAL DESCRIPTION 996.18.2...................................................................................................................... CAUSE 99

6.19 COMPLETE LAYER 3 INFORMATION .........................................................................1006.19.1.........................................................................................GENERAL DESCRIPTION 1016.19.2..................................................................................................... CELL IDENTIFIER 1026.19.3.......................................................................................... LAYER 3 INFORMATION 104

6.20 HANDOVER COMMAND...............................................................................................105


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6.20.1.........................................................................................GENERAL DESCRIPTION 1066.20.2.......................................................................................... LAYER 3 INFORMATION 106

6.21 HANDOVER COMPLETE ..............................................................................................1076.21.1.........................................................................................GENERAL DESCRIPTION 1086.21.2................................................................................................................ RR CAUSE 108

6.22 HANDOVER DETECT ...................................................................................................109

6.22.1.........................................................................................GENERAL DESCRIPTION 1096.23 HANDOVER FAILURE ..................................................................................................110

6.23.1.........................................................................................GENERAL DESCRIPTION 1116.23.2...................................................................................................................... CAUSE 1126.23.3................................................................................................................ RR CAUSE 113

6.24 HANDOVER PERFORMED ...........................................................................................1146.24.1..................................................... GENERAL DESCRIPTION (GSM phase 2 format) 1156.24.2..................................................... GENERAL DESCRIPTION (GSM phase 1 format) 1166.24.3...................................................................................................................... CAUSE 1176.24.4..................................................................................................... CELL IDENTIFIER 1186.24.5..................................................................................................CHOSEN CHANNEL 1206.24.6......................................................................CHOSEN ENCRYPTION ALGORITHM 1216.24.7................................................................................................... SPEECH VERSION 121

6.25 HANDOVER REQUEST ................................................................................................1226.25.1..................................................... GENERAL DESCRIPTION (GSM phase 2 format) 1246.25.2..................................................... GENERAL DESCRIPTION (GSM phase 1 format) 1286.25.3........................................................................................................CHANNEL TYPE 1316.25.4.................................................................................. ENCRYPTION INFORMATION 1366.25.5...................................................................... CLASSMARK INFORMATION TYPE 1 1376.25.6.....................................CLASSMARK INFORMATION TYPE 2 (GSM PHASE 1 MS) 1386.25.7.....................................CLASSMARK INFORMATION TYPE 2 (GSM PHASE 2 MS) 1396.25.8...................................... CELL IDENTIFIER SERVING, CELL IDENTIFIER TARGET 1426.25.9..................................................................................................................PRIORITY 1446.25.10...................................................................................... CIRCUIT IDENTITY CODE 1456.25.11........................................................................................... DOWNLINK DTX FLAG 1456.25.12.................................................................................................................... CAUSE 146

6.25.13.................................................................... CLASSMARK INFORMATION TYPE 3 1476.25.14.................................................................................CURRENT CHANNEL TYPE 1 1546.25.15................................................................................................. SPEECH VERSION 1556.25.16.............................................................................Old BSS to New BSS information 156

6.26 HANDOVER REQUEST ACKNOWLEDGE ...................................................................1606.26.1..................................................... GENERAL DESCRIPTION (GSM phase 2 format) 1616.26.2..................................................... GENERAL DESCRIPTION (GSM phase 1 format) 1616.26.3.......................................................................................... LAYER 3 INFORMATION 1626.26.4..................................................................................................CHOSEN CHANNEL 1636.26.5......................................................................CHOSEN ENCRYPTION ALGORITHM 1646.26.6................................................................................................... SPEECH VERSION 164

6.27 HANDOVER REQUIRED ...............................................................................................1656.27.1..................................................... GENERAL DESCRIPTION (GSM phase 2 format) 1666.27.2..................................................... GENERAL DESCRIPTION (GSM phase 1 format) 1686.27.3...................................................................................................................... CAUSE 1696.27.4............................................................................................. RESPONSE REQUEST 1696.27.5...................................................................... CELL IDENTIFIER LIST PREFERRED 1706.27.6...................................................................................CURRENT CHANNEL TYPE 1 1736.27.7................................................................................................... SPEECH VERSION 1746.27.8...............................................................................Old BSS to New BSS information 175

6.28 HANDOVER REQUIRED REJECT ................................................................................1796.28.1.........................................................................................GENERAL DESCRIPTION 1806.28.2...................................................................................................................... CAUSE 180

6.29 MSC INVOKE TRACE ...................................................................................................1816.29.1.........................................................................................GENERAL DESCRIPTION 182

6.29.2............................................................................................................ TRACE TYPE 1836.29.3...............................................................................................................TRIGGERID 184


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6.29.4................................................................................................ TRACE REFERENCE 1846.29.5......................................................................................................TRANSACTIONID 1856.29.6.................................................................................................... MOBILE IDENTITY 1856.29.7.......................................................................................................................OMCID 186

6.30 OVERLOAD...................................................................................................................1876.30.1.........................................................................................GENERAL DESCRIPTION 188

6.30.2...................................................................................................................... CAUSE 1886.31 PAGING.........................................................................................................................189

6.31.1.........................................................................................GENERAL DESCRIPTION 1906.31.2........................................................................................................................... IMSI 1916.31.3..........................................................................................................................TMSI 1926.31.4.............................................................................................CELL IDENTIFIER LIST 1936.31.5...........................................................................................................eMLPP Priority 196

6.32 QUEUING INDICATION.................................................................................................1986.32.1.........................................................................................GENERAL DESCRIPTION 198

6.33 RESET...........................................................................................................................1996.33.1.........................................................................................GENERAL DESCRIPTION 2006.33.2...................................................................................................................... CAUSE 200

6.34 RESET ACKNOWLEDGE..............................................................................................201

6.34.1.........................................................................................GENERAL DESCRIPTION 2016.35 RESET CIRCUIT ...........................................................................................................202

6.35.1.........................................................................................GENERAL DESCRIPTION 2036.35.2........................................................................................ CIRCUIT IDENTITY CODE 2036.35.3...................................................................................................................... CAUSE 204

6.36 RESET CIRCUIT ACKNOWLEDGE ..............................................................................2056.36.1.........................................................................................GENERAL DESCRIPTION 2066.36.2........................................................................................ CIRCUIT IDENTITY CODE 206

6.37 SAPI "n" REJECT .........................................................................................................2076.37.1.........................................................................................GENERAL DESCRIPTION 2086.37.2.......................................................................................................................... DLCI 2086.37.3...................................................................................................................... CAUSE 209

6.38 TRACE INVOCATION ...................................................................................................2106.38.1..................................................... GENERAL DESCRIPTION (GSM phase 1 format) 2116.38.2...................................................................................................... TRACE NUMBER 211

6.39 UNBLOCK.....................................................................................................................2126.39.1.........................................................................................GENERAL DESCRIPTION 2136.39.2........................................................................................ CIRCUIT IDENTITY CODE 213

6.40 UNBLOCKING ACKNOWLEDGE..................................................................................2146.40.1.........................................................................................GENERAL DESCRIPTION 2156.40.2........................................................................................ CIRCUIT IDENTITY CODE 215

6.41 UNEQUIPPED CIRCUIT................................................................................................2166.41.1.........................................................................................GENERAL DESCRIPTION 2176.41.2........................................................................................ CIRCUIT IDENTITY CODE 217

7. GLOSSARY...........................................................................................................................218

04 31/05/02 MND/TD MND/TD/SYT

03 22/11/01 MND/TD MND/TD/SYT02 18/09/01 MCD/TD MCD/TD/SYT

ED DATE CHANGE NOTE APPRAISAL AUTHORITY ORIGINATOR


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HISTORY

Edition 01 14/02/2001 CreationEdition 02 18/09/2001 First updateEdition 03 22/11/2001 Update with B7.2 f eaturesEdition 04 31/05/2002 Remove B7.1

REFERENCED DOCUMENTS

Doctree references

[1] 3BK 11202 0323 DSZZA Paging and Access Grant control[2] 3BK 11202 0309 DSZZA Radio and Link Establishment[3] 3BK 11202 0286 DSZZA Normal Assignment[4] 3BK 11202 0156 DSZZA Ciphering procedure[5] 3BK 11202 0291 DSZZA Call Release[6] 3BK 11202 0287 DSZZA Channel Modification[7] 3BK 11202 0310 DSZZA Classmark Handling

[8] 3BK 11202 0164 DSZZA Transparent message routing[9] 3BK 11202 0165 DSZZA Short Message Point to Point

[10] 3BK 11202 0293 DSZZA Radio measurements[11] 3BK 11202 0296 DSZZA DTX functional specification[12] 3BK 11202 0295 DSZZA Power control and radiolink supervision[13] 3BK 11202 0292 DSZZA Resource Allocation and Management[14] 3BK 11202 0255 DSZZA Overload control[15] 3BK 11202 0173 DSZZA Protocol Error Handling[16] 3BK 11202 0069 DSZZA Trace invocation[17] 3BK 11202 0305 DSZZA BSS Initialisation of the Telecom Part[18] 3BK 11202 0176 DSZZA BSS Global Reset[19] 3BK 11202 0299 DSZZA Reset Circuit, Blocking and Unequipped Circuit[20] 3BK 11203 0066 DSZZA Layer 3 message dictionary - Air interface

[21] 3BK 11202 0290 DSZZA External channel change[22] 3BK 11202 0289 DSZZA Internal channel change[23] 3BK 11203 0043 DSZZA Alcatel BSS Application Document to GSM - General Overview

3GPP References

[24] 3GPP TS 04.18 Mobile radio interface layer 3 specification; Radio Resource ControlProtocol

[25] 3GPP TS 08.58 Base Station Controller - Base Transceiver Station (BSC-BTS) interface;Layer 3 specification

[26] 3GPP TS 08.08 Mobile-services Switching Centre - Base Station System (BSS-MSC)interface; Layer 3 specification

[27] 3GPP TS 24.008 Mobile Radio Interface Layer 3 specification; Core Network Protocols

Note the versions of the 3GPP Technical Specifications are given in reference [23].

RELATED DOCUMENTS

None.

PREFACE

None.


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1. INTRODUCTION

1.1 SCOPE

This volume of the message dictionary details the non-transparent messages handled by the AlcatelBSS over the A interface.As for this release both GSM phase 1 and phase 2 formats are supported, this document shows bothmessage formats where applicable.

2. GENERAL PRESENTATION

2.1 PRELIMINARIES

Each message is described in the same way :

- A general overview,- A general description, with a byte per byte description- A detailed description of all the Information Elements,

The messages dictionary includes also in this part :

- A summary of all the messages described in the dictionary,

- A cross reference of all the Information Elements. This allows to find all the messages inwhich one Information Element appears.

2.2 MESSAGES PRESENTATION

2.2.1 The general overview

It is the first page for each message. It includes :

NAME :The name of the message.

INTERFACE :The list of three Interfaces. Under each interface name, the two following fields giveinformation, if relevant.

CHANNEL/USAGE :According to the involved interface, it is the radio channel definition or the fact that themessage is transparent or not for the BTS.When the box is empty, the message is not used on this interface.

3GPP-REF. :According to the involved interface, it gives the reference to a 3GPP TS.

FUNCTION :It is the description of the function of the message. This is extracted from the 3GPP TSs.

DIRECTION :

It is the direction of the message from one entity of the BSS or MSC to another one.


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INFORMATION ELEMENT LIST :It is the list of all the Information Element. For each Information Element the followinginformation is given :

- Mandatory (M..) or Optional (O..),- Fixed (..F) or Variable length (..V),- Some short comments.

- The length in bytes,

IMPLEMENTATION MAXIMUM LENGTH :It is the total of all used information elements, mandatory or optional. When the length is fixedfor all parameters, a unique value is given. When not, a range is given ("minimum length" -"maximum length").

FOLLOWING EVENT :It is the description of following events (for specific procedure) for the normal and abnormalcases.

TIMER :It is the name of the Timers (started or stopped) associated with the message.

SPECIFICATION DOC. REF. :It is the reference of relevant ALCATEL document.

2.2.2 The general description

The General Description is an overview of the message as it is sent over the variousinterfaces. The message is described byte per byte.

2.2.3 The information element description

For each Information Element :

TYPE :This field is used to give the Mandatory or Optional information.

DEFINITION :It is an extract of 3GPP TS giving the usage of the Information Element.

BIT DESCRIPTION :It is a bit description of the element with all the needed information, including the subparameter definition.

SUB-PARAMETER DEFINITION :It is a description (if needed) of all the sub parameters defined in the bit description.

PARAMETER ORIGIN - ACTION ON PARAMETER :It is a description of the action to be performed when receiving or transmitting the message.


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3. LIST OF THE MESSAGES

A

ASSIGNMENT COMPLETE

ASSIGNMENT FAILUREASSIGNMENT REQUEST

B

BLOCK

BLOCKING ACKNOWLEDGE

BSS INVOKE TRACE

C

CHANGE CIRCUIT not used

CHANGE CIRCUIT ACKNOWLEDGE not used

CIPHER MODE COMMAND

CIPHER MODE COMPLETE

CIPHER MODE REJECT

CIRCUIT GROUP BLOCK

CIRCUIT GROUP BLOCKING ACKNOWLEDGE

CIRCUIT GROUP UNBLOCK

CIRCUIT GROUP UNBLOCKING ACKNOWLEDGE

CLASSMARK REQUEST

CLASSMARK UPDATE

CLEAR COMMAND

CLEAR COMPLETE

CLEAR REQUEST

COMPLETE LAYER 3 INFORMATION

COMMON ID not used

CONFUSION not used

CONNECTION ORIENTED INFORMATION not used

CONNECTIONLESS INFORMATION not used

H

HANDOVER CANDIDATE ENQUIRE not used

HANDOVER CANDIDATE RESPONSE not used

HANDOVER COMMANDHANDOVER COMPLETE

HANDOVER DETECT

HANDOVER FAILURE

HANDOVER PERFORMED

HANDOVER REQUEST

HANDOVER REQUEST ACKNOWLEDGE

HANDOVER REQUIRED

HANDOVER REQUIRED REJECT

HANDOVER SUCCEEDED not used


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L

LOAD INDICATION not used

LSA INFORMATION not used

M

MSC INVOKE TRACE

O

OVERLOAD

P

PAGING

PERFORM LOCATION ABORT not used

PERFORM LOCATION REQUEST not used

PERFORM LOCATION RESPONSE not used

Q

QUEUING INDICATION

R

RESET

RESET ACKNOWLEDGE

RESET CIRCUIT

RESET CIRCUIT ACKNOWLEDGE

RESOURCE INDICATION not used

RESOURCE REQUEST not used

RESUME not used

S

SAPI "n" CLEAR COMMAND not used

SAPI "n" CLEAR COMPLETE not used

SAPI "n" REJECT

SUSPEND not used

T

TRACE INVOCATION (GSM phase 1 message)

U

UNBLOCK

UNBLOCKING ACKNOWLEDGE

UNEQUIPPED CIRCUIT

UPLINK REJECT COMMAND not used

UPLINK RELEASE COMMAND not used

UPLINK RELEASE INDICATION not used

UPLINK REQUEST not used

UPLINK REQUEST ACKNOWLEDGE not used

UPLINK REQUEST CONFIRMATION not used

UPLINK SEIZED COMMAND not used


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V

VGCS/VBS SETUP not used

VGCS/VBS SETUP ACKNOWLEDGE not used

VGCS/VBS SETUP ASSIGNMENT REQUEST not used

VGCS/VBS SETUP ASSIGNMENT RESULT not used

VGCS/VBS SETUP ASSIGNMENT FAILURE not used

VGCS/VBS SETUP QUEUING INDICATION not used

VGCS/VBS SETUP REFUSE not used


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4. CROSS REFERENCE ON 08.08 INFORMATION ELEMENTS

Cause ASSIGNMENT FAILURE

BLOCK

CIPHER MODE REJECTCIRCUIT GROUP BLOCK

CLEAR COMMAND

CLEAR REQUEST

HANDOVER FAILURE

HANDOVER PERFORMED

HANDOVER REQUEST

HANDOVER REQUIRED

HANDOVER REQUIRED REJECT

OVERLOAD

RESET

RESET CIRCUIT

SAPI "n" REJECT

Cell Identifier ASSIGNMENT COMPLETE


HANDOVER COMMAND

HANDOVER PERFORMED

HANDOVER REQUEST

OVERLOAD

Cell Identifier list HANDOVER REQUIRED

PAGING

Channel needed PAGING

Channel Type ASSIGNMENT REQUEST

HANDOVER REQUEST

Chosen Channel ASSIGNMENT COMPLETE


HANDOVER PERFORMED


Chosen Encryption Algorithm ASSIGNMENT COMPLETE

CIPHER MODE COMPLETE

HANDOVER REQUEST


HANDOVER PERFORMED


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Circuit Identity Code ASSIGNMENT REQUEST

ASSIGNMENT COMPLETE

BLOCK

BLOCKING ACKNOWLEDGE

CIRCUIT GROUP BLOCK

CIRCUIT GROUP BLOCKING ACKNOWLEDGECIRCUIT GROUP UNBLOCK


HANDOVER REQUEST


RESET CIRCUIT

RESET CIRCUIT ACKNOWLEDGE

UNBLOCK

UNBLOCKING ACKNOWLEDGE

UNEQUIPPED CIRCUIT

Circuit Identity Code List CIRCUIT GROUP BLOCK

CIRCUIT GROUP BLOCKING ACKNOWLEDGE

CIRCUIT GROUP UNBLOCK


UNEQUIPPED CIRCUIT

Cipher Response Mode CIPHER MODE COMMAND

Classmark Information type 1 HANDOVER REQUEST

Classmark Information type 2 ASSIGNMENT REQUEST

CLASSMARK UPDATE

HANDOVER REQUEST

Classmark Information type 3 CLASSMARK UPDATE

HANDOVER REQUEST

Configuration Evolution Indication ASSIGNMENT REQUEST

HANDOVER REQUEST

Connection release requested BLOCK

Current channel type 1 HANDOVER REQUEST

HANDOVER REQUIRED

Current Radio Environment (phase 1 IE) HANDOVER REQUIRED

DLCI SAPI "n" REJECT


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Downlink DTX flag ASSIGNMENT REQUEST

HANDOVER REQUEST

eMLPP Priority PAGING

Encryption Information CIPHER MODE COMMANDHANDOVER REQUEST

Environment of BS "n" (phase 1 IE) HANDOVER REQUIRED

Forward indicator BSS INVOKE TRACE

Group call ref erence ASSIGNMENT REQUEST

HANDOVER REQUEST

IMSI PAGING

Interference band to be used ASSIGNMENT REQUEST

HANDOVER REQUEST

Layer 3 Header Information ASSIGNMENT REQUEST

CIPHER MODE COMMAND

CLEAR COMMAND

Layer 3 Information COMPLETE LAYER 3 INFORMATION

HANDOVER COMMANDHANDOVER REQUEST ACKNOWLEDGE

Layer 3 Message Contents CIPHER MODE COMPLETE

Mobile Identity MSC INVOKE TRACE

OMCId BSS INVOKE TRACE

MSC INVOKE TRACE

Old BSS to New BSS Information HANDOVER REQUESTHANDOVER REQUIRED

Priority ASSIGNMENT REQUEST

HANDOVER REQUEST

Radio Channel Identity (phase 1 IE) ASSIGNMENT COMPLETE

ASSIGNMENT REQUEST

HANDOVER PERFORMED

HANDOVER REQUEST


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Response Request HANDOVER REQUIRED

RR Cause ASSIGNMENT COMPLETE

ASSIGNMENT FAILURE

HANDOVER COMPLETEHANDOVER FAILURE

Speech version ASSIGNMENT COMPLETE

HANDOVER REQUEST


HANDOVER REQUIRED

HANDOVER PERFORMED

Talker flag ASSIGNMENT REQUEST

HANDOVER REQUEST

TMSI PAGING

Trace Number (phase 1 IE) TRACE INVOCATION (phase 1 message)

Trace Reference BSS INVOKE TRACE

MSC INVOKE TRACE

Trace Type BSS INVOKE TRACE

MSC INVOKE TRACE

TransactionId BSS INVOKE TRACE

MSC INVOKE TRACE

TriggerId BSS INVOKE TRACE

MSC INVOKE TRACE


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5. DESCRIPTION OF THE HEADER ON THE A INTERFACE (GSM PH1 & PH2)

- Only one parameter : message type

Message type uniquely identifies the message being sent. It is a single octet element, mandatory inall messages.

8 7 6 5 4 3 2 1

E Message type

Bit 8 is reserved for future extension of the code set

8 7 6 5 4 3 2 1 Hex

0 0 0 0 0 0 0 0 00 Reserved (not used)

ASSIGNMENT MESSAGES

0 0 0 0 0 0 0 1 01 ASSIGNMENT REQUEST

0 0 0 0 0 0 1 0 02 ASSIGNMENT COMPLETE

0 0 0 0 0 0 1 1 03 ASSIGNMENT FAILURE

HANDOVER MESSAGES

0 0 0 1 0 0 0 0 10 HANDOVER REQUEST

0 0 0 1 0 0 0 1 11 HANDOVER REQUIRED

0 0 0 1 0 0 1 0 12 HANDOVER REQUEST ACKNOWLEDGE

0 0 0 1 0 0 1 1 13 HANDOVER COMMAND

0 0 0 1 0 1 0 0 14 HANDOVER COMPLETE

0 0 0 1 0 1 0 1 15 HANDOVER SUCCEEDED (not used)

0 0 0 1 0 1 1 0 16 HANDOVER FAILURE

0 0 0 1 0 1 1 1 17 HANDOVER PERFORMED

0 0 0 1 1 0 0 0 18 HANDOVER CANDIDATE ENQUIRE (not used)

0 0 0 1 1 0 0 1 19 HANDOVER CANDIDATE RESPONSE (not used)

0 0 0 1 1 0 1 0 1A HANDOVER REQUIRED REJECT

0 0 0 1 1 0 1 1 1B HANDOVER DETECT


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RELEASE MESSAGES

0 0 1 0 0 0 0 0 20 CLEAR COMMAND

0 0 1 0 0 0 0 1 21 CLEAR COMPLETE

0 0 1 0 0 0 1 0 22 CLEAR REQUEST

0 0 1 0 0 0 1 1 23 RESERVED (not used)

0 0 1 0 0 1 0 0 24 RESERVED (not used)

0 0 1 0 0 1 0 1 25 SAPI "N" REJECT

0 0 1 0 0 1 1 0 26 CONFUSION (not used)

OTHER CONNECTION RELATED MESSAGES

0 0 1 0 1 0 0 0 28 SUSPEND (not used)

0 0 1 0 1 0 0 1 29 RESUME (not used)

0 0 1 0 1 0 1 0 2A CONNECTION ORIENTED INFORMATION (not used)

0 0 1 0 1 0 1 1 2B PERFORM LOCATION REQUEST (not used)

0 0 1 0 1 1 0 0 2C LSA INFORMATION (not used)0 0 1 0 1 1 0 1 2D PERFORM LOCATION RESPONSE (not used)

0 0 1 0 1 1 1 0 2E PERFORM LOCATION ABORT (not used)

0 0 1 0 1 1 1 1 2F COMMON ID (not used)

GENERAL MESSAGES

0 0 1 1 0 0 0 0 30 RESET

0 0 1 1 0 0 0 1 31 RESET ACKNOWLEDGE

0 0 1 1 0 0 1 0 32 OVERLOAD

0 0 1 1 0 0 1 1 33 TRACE INVOCATION (phase 1 only)

0 0 1 1 0 1 0 0 34 RESET CIRCUIT

0 0 1 1 0 1 0 1 35 RESET CIRCUIT ACKNOWLEDGE

0 0 1 1 0 1 1 0 36 MSC INVOKE TRACE

0 0 1 1 0 1 1 1 37 BSS INVOKE TRACE

0 0 1 1 1 0 1 0 3A CONNECTIONLESS INFORMATION (not used)

TERRESTRIAL RESOURCE MESSAGES

0 1 0 0 0 0 0 0 40 BLOCK

0 1 0 0 0 0 0 1 41 BLOCKING ACKNOWLEDGE

0 1 0 0 0 0 1 0 42 UNBLOCK0 1 0 0 0 0 1 1 43 UNBLOCKING ACKNOWLEDGE

0 1 0 0 0 1 0 0 44 CIRCUIT GROUP BLOCK

0 1 0 0 0 1 0 1 45 CIRCUIT GROUP BLOCKING ACKNOWLEDGE

0 1 0 0 0 1 1 0 46 CIRCUIT GROUP UNBLOCK

0 1 0 0 0 1 1 1 47 CIRCUIT GROUP UNBLOCKING ACKNOWLEDGE

0 1 0 0 1 0 0 0 48 UNEQUIPPED CIRCUIT

0 1 0 0 1 0 0 1 49 CHANGE CIRCUIT (not used)

0 1 0 0 1 0 1 0 4A CHANGE CIRCUIT ACKNOWLEDGE (not used)


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RADIO RESOURCE MESSAGES

0 1 0 1 0 0 0 0 50 RESOURCE REQUEST (not used)

0 1 0 1 0 0 0 1 51 RESOURCE INDICATION (not used)

0 1 0 1 0 0 1 0 52 PAGING

0 1 0 1 0 0 1 1 53 CIPHER MODE COMMAND

0 1 0 1 0 1 0 0 54 CLASSMARK UPDATE

0 1 0 1 0 1 0 1 55 CIPHER MODE COMPLETE

0 1 0 1 0 1 1 0 56 QUEUING INDICATION

0 1 0 1 0 1 1 1 57 COMPLETE LAYER 3 INFORMATION

0 1 0 1 1 0 0 0 58 CLASSMARK REQUEST

0 1 0 1 1 0 0 1 59 CIPHER MODE REJECT

0 1 0 1 1 0 1 0 5A LOAD INDICATION (not used)

VGCS/VBS

0 0 0 0 0 1 0 0 04 VGCS/VBS SETUP (not used)0 0 0 0 0 1 0 1 05 VGCS/VBS SETUP ACK (not used)

0 0 0 0 0 1 1 0 06 VGCS/VBS SETUP REFUSE (not used)

0 0 0 0 0 1 1 1 07 VGCS/VBS ASSIGNMENT REQUEST (notused)

0 0 0 1 1 1 0 0 1C VGCS/VBS ASSIGNMENT RESULT (not used)

0 0 0 1 1 1 0 1 1D VGCS/VBS ASSIGNMENT FAILURE (not used)

0 0 0 1 1 1 1 0 1E VGCS/VBS QUEUING INDICATION (not used)

0 0 0 1 1 1 1 1 1F UPLINK REQUEST (not used)

0 0 1 0 0 1 1 1 27 UPLINK REQUEST ACKNOWLEDGE (not used)

0 1 0 0 1 0 0 1 49 UPLINK REQUEST CONFIRMATION (not used)

0 1 0 0 1 0 1 0 4A UPLINK RELEASE INDICATION (not used)

0 1 0 0 1 0 1 1 4B UPLINK REJECT COMMAND (not used)

0 1 0 0 1 1 0 0 4C UPLINK RELEASE COMMAND (not used)

0 1 0 0 1 1 0 1 4D UPLINK SEIZED COMMAND (not used)


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6.1 ASSIGNMENT COMPLETE

NAME ASSIGNMENT COMPLETE -- A Interface

INTERFACE AIR ABIS A

CHANNEL/USAGE

SCCP Connection

3GPP-REF 08.083.2.1.2

FUNCTION This message is sent from BSC to MSC and indicates that the requestedassignment has been completed correctly.

DIRECTION BSC MSC

INFORMATION ELEMENT NAME TYPE COMMENT LENGTH

INFORMATIONELEMENT

LISTMessage typeRR CauseCircuit identityCell IdentifierChosen channelChosen encryption algorithmCircuit PoolSpeech version (chosen)LSA Identifier

MFOFOFOVOFOFOFOFOF

(1)not used

always sent(2)(3)

not used(4)

not used

123

7-1022227

IMPLEMENTATION MAXIMUM LENGTH 16-19

NORMAL SITUATION ABNORMAL SITUATION TIMER

FOLLOWINGEVENT Procedure to be continued on

allocated channel.Message replaced by

ASSIGNMENT FAILURE

SPECIF.DOC. REF.

Normal Assignment (ref. [3])Internal Channel Change (ref. [22])

(1) Only sent if received from the MS.

(2) Only sent when the channel type in the assignment request had requested a "Full or Halfrate' code point.

(3) This will only be included if the MSC indicates that more than one ciphering algorithm ispermitted. This possibility would have been indicated to the BSC in the EncryptionInformation IE contained in the last received HANDOVER REQUEST or CIPHER MODECOMMAND messages.

(4) Included at least when the speech version choice was done by the BSS.


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6.1.1 GENERAL DESCRIPTION (Phase 2 format)

8 7 6 5 4 3 2 1

0 0 0 0 0 0 1 0

RR 0 0 0 1 0 1 0 1 optional

Cause RR Cause

Cell 0 0 0 0 0 1 0 1 optional

Identifier Length (value = 8 or 5)

option

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

MCC digit 2 MCC digit 1 LAC

MNC digit 3 (Note) MCC digit 3 LAC cont.

MNC digit 2 MNC digit 1 CI value

LAC CI value cont.

LAC cont.

CI value

CI value cont.

Chosen 0 0 1 0 0 0 0 1 optional

Channel Channel mode Channel

Chosen 0 0 1 0 1 1 0 0 optional

Encrypt.Algo.

Algorithm Identifier

Speech version 0 1 0 0 0 0 0 0 optional

(chosen) spare Speech version Identifier

Note 3 digits MNC is supported. Note that in case where only two digits MNC is used, the fieldMNC digit 3 shall be filled in with 1111.


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For Cell Identifier Discriminator = 0 or 1

8 7 6 5 4 3 2 1

0 0 0 0 0 0 1 0

RR 0 0 0 1 0 1 0 1

Cause RR Cause optional

Cell 0 0 0 0 0 1 0 1 optional

Identifier Length (value = 8 or 5)

option

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

MCC digit 2 MCC digit 1 LAC

MNC digit 3 (Note 3) MCC digit 3 LAC cont.

MNC digit 2 MNC digit 1 CI value

LAC CI value cont.

LAC cont.

CI value

CI value cont.

Note 1: Specific phase 1 IEs :

Note 2: Radio channel identity : not used.

Note 3: Three digits MNC is supported. Note that in case where only two digits MNC is used, the fieldMNC digit 3 shall be filled in with 1111.


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6.1.4 CELL IDENTIFIER (new cell)

TYPE : O

DEFINITIONIdentification of a cell within the BSS.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 0 0 1 0 1 1

Length 2

spare Cell Identif. Discriminator 3

Cell Identification 4 - 10

SUB PARAMETER DEFINITION

Cell identification discriminator

0000 The whole cell global Identification, CGI used

0001 Location Area Code, LAC, and Cell Identity, CI used

0010 Cell Identity, CI not used

0011 No cell is associated with the transaction not used

1000 PLMN-ID, LAC and RNC-ID not used

1001 RNC-ID not used

1010 LAC and RNC-ID not used

1011 SAI (Serving Area Identity) of UE not used

All other values are reserved.

Only the discriminator value 0 and 1 are used :

Discriminator 0 : Discriminator 1 :

4 MCC digit 2 MCC digit 1 4 LAC

5 MNC digit 3(Note)

MCC digit 3 5 LAC cont.

6 MNC digit 2 MNC digit 1 6 CI value

7 LAC 7 CI value cont.8 LAC cont.9 CI value

10 CI value cont.

Note 3 digits MNC is supported. In case where only two digits MNC is used, the field MNCdigit 3 shall be filled in with 1111.

MCC, MNC :See 3GPP 24.008

LAC, Location area code :

See 3GPP 24.008


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CI value, Cell Identity value :See 3GPP 24.008

PARAMETER ORIGIN - ACTION ON PARAMETERThe MSC requires the information from a specific cell controlled by the BSC. This info element

is included even in case of mono-cell configuration.

The choice between the use of cell discriminator 0 or 1 depends on the value of a BSSparameter.


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6.1.5 CHOSEN CHANNEL

TYPE : O

DEFINITIONDescription of the channel allocated to the MS.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 1 0 0 0 0 1 1

Channel mode Channel 2


Channel mode

Bit 8 7 6 5

0 0 0 0 No channel mode indication0 0 0 1 data, 29.0 kbit/s radio interface rate (not implemented)

0 0 1 0 data, 32.0 kbit/s radio interface rate (not implemented)

0 0 1 1 data, 43.5 kbit/s radio interface rate (not implemented)

0 1 0 0 data, 43.5 kbit/s downlink and 14.5 kbit/s uplink (not implemented)




1 0 0 0 Signalling only

1 0 0 1 Speech (FR or HR)


1 0 1 1 Data 12.0 kbit/s (radio interface rate)1 1 0 0 Data 6.0 kbit/s (radio interface rate)

1 1 0 1 Data 3.6 kbit/s (radio interface rate)

1 1 1 0 Data 14.5 kbit/s (radio interface rate)


All other values reserved

Channel

Bit 4 3 2 1

0 0 0 0 None (not used)

0 0 0 1 SDCCH

0 1 0 0 8 Full rate TCHs (not used)1 0 0 0 1 Full rate TCH

1 0 0 1 1 Half rate TCH

1 0 1 0 2 Full rate TCHs (not used)








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PARAMETER ORIGIN - ACTION ON PARAMETERThis is a phase 2 IE. If GSM_PHASE = "GSM Phase 1", this IE is not sent.

6.1.6 CHOSEN ENCRYPTION ALGORITHM

TYPE : O

DEFINITIONDescription of the encryption algorithm allocated to the MS.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 1 0 1 1 0 0 1

Algorithm Identifier 2


Bit 8 7 6 5 4 3 2 10 0 0 0 0 0 0 1 No encryption used0 0 0 0 0 0 1 0 GSM A5/10 0 0 0 0 0 1 1 GSM A5/20 0 0 0 0 1 0 0 GSM A5/3 Not Supported0 0 0 0 0 1 0 1 GSM A5/4 Not Supported0 0 0 0 0 1 1 0 GSM A5/5 Not Supported0 0 0 0 0 1 1 1 GSM A5/6 Not Supported0 0 0 0 1 0 0 0 GSM A5/7 Not Supported


PARAMETER ORIGIN - ACTION ON PARAMETEROnly included in the case of internal directed retry.This is a phase 2 IE. If GSM_PHASE = "GSM Phase 1", this IE is not sent.

6.1.7 SPEECH VERSION

TYPE : O


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DEFINITIONSpeech version being used by the BSS.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 1 0 0 0 0 0 0 1

spare Speech version identifier 2


Speech version identifier is coded in the same way as the permitted speech version identifierin the Channel type information element.

PARAMETER ORIGIN - ACTION ON PARAMETERThis is a phase 2 IE. It is only included if the choice of the speech version was done by theBSC.


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6.2 ASSIGNMENT FAILURE

NAME ASSIGNMENT FAILURE -- A Interface


CHANNEL/USAGE

SCCP Connection

3GPP-REF 08.083.2.1.3

FUNCTION Used by BSC to report failure of the assignment procedure.

DIRECTION BSC MSC


INFORMATIONELEMENT

LISTMessage typeCauseRR CauseCircuit poolCircuit pool list

MFMFOFOFOV

not usednot used

1322

n+2 (*)

IMPLEMENTATION MAXIMUM LENGTH 6


FOLLOWINGEVENT MSC decides to cancel the

procedure or to reallocate a newchannel.

SPECIF.DOC. REF.

Normal Assignment (ref. [3])Internal Channel Change (ref. [22])Channel Modification (ref. [6])

(*) : n is the number of circuit pools.


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6.2.1 GENERAL DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 0 0 0 1 1

0 0 0 0 0 1 0 0

CAUSE Length (value = 1)

0 Cause value

RR 0 0 0 1 0 1 0 1

CAUSE RR Cause optional


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6.2.2 CAUSE

TYPE : M

DEFINITIONTo indicate the reason for a particular event to have occurred.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 0 0 1 0 0

Length

0 Cause value


Used causes :765 4321

Class 000 : Normal event

- Radio Interface message failure 000 0000

- Radio Interface failure 000 0001

- O&M intervention 000 0111

- Radio interface failure, reversion to old channel 000 1010

Class 010 : Resource unavailable

- Equipment failure 010 0000

- No Radio resource available 010 0001

- Requested terrestrial resources unavailable 010 0010

- BSS not equipped 010 0101

Class 011 : Service or option not available

- Requested transcoding/rate adaption unavailable 011 0000

- Circuit pool mismatch 011 0001

- Requested speech version unavailable 011 0011

Class 100 : Service or option not implemented

- Ciphering Algorithm not supported 100 0000

Class 101 : Invalid message

- Terrestrial resource already allocated 101 0000

Class 110 : Protocol error

- Protocol error between BSC and MSC 110 0000

PARAMETER ORIGIN - ACTION ON PARAMETEROnly this format is used (no extension).


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6.2.3 RR CAUSE

TYPE : O

DEFINITIONThis element is passed from the air interface to the MSC transparently, when received from

the MS.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 1 0 1 0 1

RR Cause


RR Cause same value (and same meaning) as Assignment Failure on the Air Interface.

PARAMETER ORIGIN - ACTION ON PARAMETERThe RR Cause information, received from MS (in the "assignment failure" message), has beenstored, and is given to the MSC.

This element is optional because the BSC may send the "assignment failure" message withouthaving received the same message from the MS.


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6.3 ASSIGNMENT REQUEST

NAME ASSIGNMENT REQUEST


CHANNEL/USAGE

SCCP Connection

3GPP-REF 08.083.2.1.1

FUNCTION Used by the MSC to the BSC in order to request the BSS to assign radioresource, the attributes of which are defined within the message.

DIRECTION BSC MSC


INFORMATIONELEMENT

LISTMessage typeChannel TypeLayer 3 Header InfoPriorityCircuit Identity CodeDownlink DTX FlagInterf. band to be usedClassmark info 2Group call reference

Talker flagConfiguration Evolution IndicationLSA Access Control SuppressionService Handover

MFMVOFOFOFOFOFOVOF

OFOFOFOF

not used

not used

not usednot usednot usednot used

15-10

43322

4-55

1223

IMPLEMENTATION MAXIMUM LENGTH 22-28


FOLLOWINGEVENT Assignment command sent to

the MS after the Channel

Allocation

ASSIGNMENT FAILURE sent tothe MSC

SPECIFDOC. REF.

Radio Link Establishment (ref. [2])Normal Assignment Procedure (ref. [3])Internal Channel Change (ref. [22])


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8 7 6 5 4 3 2 1

0 0 0 0 0 0 0 1

0 0 0 0 1 0 1 1

Length

Channel spare Speech or data indicator

Type Channel rate and type

option

DataSpeech

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Ext Permitted speech version identifier Ext T/NT Rate

Ext Permitted speech version identifier Ext spare allowed r i/f rate

Ext Permitted speech version identifier



0 Permitted speech version identifier

0 0 0 0 0 1 1 1

Layer 3 Length (value=2) optional

Header 0 0 0 0 Proto. Discrim

Information 0 0 0 0 Transac. Identifier

0 0 0 0 0 1 1 0

Priority Length (value=1) optional

spare pci Priority Level qa pvi

Circuit 0 0 0 0 0 0 0 1

Identity PCM Multiplex in use (high part) optional

Code (low part) TS in use

Downlink DTX 0 0 0 1 1 0 0 1 optional

Flag 0 0 0 0 0 0 0 DTXFlag


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EITHER (Phase 1 MS)

0 0 0 1 0 0 1 0

Classmark Length = 2

Information Revisionlevel

EncryptionAlgorithm

RF powerCapability

optional

Type 2 0spare

0spare

0spare

0spare

SM.cap

Frequency capability

OR (Phase 2 MS)

0 0 0 1 0 0 1 0

Length = 3

ClassmarkInformation

0spare

Revisionlevel

ES-IND

A5/1 RF powerCapability optional

Type 2 0spare

PSCapa

SS ScreenIndicator

SM.cap

VBS VGCS

FC

CM30

spareLCSVA

CAPUCS2 SoLSA CMSP A5/3 A5/2


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8 7 6 5 4 3 2 1

0 0 0 0 0 0 0 1

0 0 0 0 1 0 1 1

Length

Channel spare Speech or data indicator

Type Channel Rate and type

option

DataSpeech

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Ext Permitted speech version identifier Ext T/NT Rate





0 Permitted speech version identifier

0 0 0 0 0 1 1 1

Layer 3 Length (value=2) optional

Header 0 0 0 0 Proto. Discrim

Information 0 0 0 0 Transac. Identifier

0 0 0 0 0 1 1 0

Priority Length (value=1) optional

Spare Priority Level qa pe

Circuit 0 0 0 0 0 0 0 1

Identity PCM Multiplex in use (high part) optional

Code (low part) TS in use

Downlink DTX 0 0 0 1 1 0 0 1 optional

Flag 0 0 0 0 0 0 0 DTXFlag


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Channel rate and type (octet 4) :If octet 3 indicates signalling then octet 4 shall be coded as :0000 0000 SDCCH or Full rate TCH channel Bm or Half rate TCH channel Lm0000 0001 SDCCH0000 0010 SDCCH or Full rate TCH channel Bm0000 0011 SDCCH or Half rate TCH channel Lm

0000 1000 Full rate TCH channel Bm (not used)0000 1001 Half rate TCH channel Lm (not used)0000 1010 Full or Half rate TCH, FR preferred, changes allowed (not used)0000 1011 Full or Half rate TCH, HR preferred, changes allowed (not used)0001 1010 Full or Half rate TCH, FR preferred, changes not allowed (not used)0001 1011 Full or Half rate TCH, HR preferred, changes not allowed (not used)All other values are reserved.

If octet 3 indicates speech then octet 4 shall be coded as:0000 1000 Full rate TCH channel Bm. Preference between permitted speech versions or

full rate TCH as indicated in octet 5, 5a ...0000 1001 Half rate TCH channel Lm. Preference between permitted speech versions

or half rate TCH as indicated in octet 5, 5a ...

0000 1010 Full or Half rate TCH channel, Full rate preferred, changes allowed...Preference between permitted speech versions for the respective channelrates as indicated in octet 5, 5a ...

0000 1011 Full or Half rate TCH channel, Half rate preferred, changes allowed...Preference between permitted speech versions for the respective channelrates as indicated in octet 5, 5a ...

0000 1111 Full or Half rate TCH channel, changes allowed ...Preference between permitted speech versions as indicated in octet 5, 5a ...

0001 1010 Full or Half rate TCH channel, Full rate preferred, changes not allowed...Preference between permitted speech versions for the respective channelrates as indicated in octet 5, 5a ...

0001 1011 Full or Half rate TCH channel. Half rate preferred, changes not allowed...Preference between permitted speech versions for the respective channel

rates as indicated in octet 5, 5a ...0001 1111 Full or Half rate TCH channel, changes not allowed ...

Preference between permitted speech versions as indicated in octet 5, 5a ...All other values are reserved.

If octet 3 indicates data then octet 4 shall be coded as:0000 1000 Full rate TCH channel Bm0000 1001 Half rate TCH channel Lm (not used)0000 1010 Full or Half rate TCH channel, Full rate preferred, changes allowed0000 1011 Full or Half rate TCH channel, Half rate preferred, changes allowed0001 1010 Full or Half rate TCH channel, Full rate preferred, changes not allowed0001 1011 Full or Half rate TCH channel. Half rate preferred, changes not allowed0010 0xxx FR multislot, changes allowed (not used)

0011 0xxx FR multislot, changes not allowed (not used)with : xxx

000 1 TCH001 2 TCHs010 3 TCHs011 4 TCHs100 5 TCHs101 6 TCHs110 7 TCHs111 8 TCHs



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For speech : octets 5, 5a, ... :Ext 0 No extension (last octet )

1 Extension, additional octet(s)

765 4321000 0001 GSM speech full rate version 1

001 0001 GSM speech full rate version 2010 0001 GSM speech full rate version 3000 0101 GSM speech half rate version 1001 0101 GSM speech half rate version 2 (not used)010 0101 GSM speech half rate version 3

All other values are reserved

For a data call : octet 5, 5a :Ext 0 No extension (last octet )

1 extension, additional octet(s)

T/NT 0 Transparent Serv ice1 Non transparent Service

Non multislot, non-transparent service : bits 6-1 indicate the radio interface data rate;65 432100 0000 12 kbits/s for TCH FR

6 kbits/s for TCH HR (not used)01 0000 12 kbits/s01 0001 6 kbits/s (not used)01 1000 14.5 kbit/s (not used)11 0001 29 kbits/s (not used)11 0100 43.5 kbit/s (not used)


Non multislot, transparent service : bits 6-1 indicate the data rate;

65 432101 0000 9.6 kbits/s01 0001 4.8 kbits/s01 0010 2.4 kbits/s01 0011 1.2 kbits/s01 0100 600 bits/s01 0101 1200/75 bit/s (1200 downlink, 75 uplink) (not used)01 1000 14.4 kbit/s (not used)11 1001 28.8 kbit/s (not used)11 1010 32.0 kbit/s (not used)


Multislot, non-transparent service : bits 6-1 (octet 5) indicate the radio interface data rate;65 432101 0110 58 / 58 kbit/s (4x14.5 kbit/s or 2 x29.0 kbit/s), not used01 0100 48.0 / 43.5 / 43.5 kbit/s (4x12 kbit/s or 3x14.5 kbit/s or 1x43.5 kbit/s), not

used01 0011 36 / 29 / 29 kbit/s (3x12 kbit/s or 2x14.5 kbit/s or 1 x 29.0 kbit/s), not used01 0010 24.0 / 24.0 kbit/s (4x6 kbit/s or 2x12 kbit/s), not used01 0001 18.0 / 14.5 kbit/s (3x6 kbit/s or 1x14.5 kbit/s), not used01 0000 12.0 / 12.0 kbits/s (2x6 kbit/s or 1x12 kbit/s), not used



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Multislot, transparent service bits 6-1 (octet 5) indicate the data rate;65 432101 1111 64 kbit/s, bit transp. (not used)01 1110 56 kbit/s, bit transp. (not used)01 1101 56 kbit/s (not used)01 1100 48 kbit/s (not used)

01 1011 38.4 kbit/s (not used)01 1010 28.8 kbit/s (not used)01 1001 19.2 kbit/s (not used)01 1000 14.4 kbit/s (not used)01 0001 32 kbit/s (not used)01 0000 9.6 kbit/s (not used)


Octet 5a :Bit 8 reserved for extension, set to value 0 (= no extension) for this message.

Allowed radio interface data rate :

Bit 7 : 0 14.5/14.4 kbit/s not allowed (not used)1 43.5 kbit/s (TCH/F43.2) allowed (not used)

Bit 6 : 0 32.0 kbit/s (TCH/F32.0) not allowed (not used)1 32.0 kbit/s (TCH/F32.0) allowed (not used)

Bit 5 : 0 29.0 kbit/s (TCH/F28.8) not allowed (not used)1 29.0 kbit/s (TCH/F28.8) allowed (not used)

Bit 4 : 0 14.5/14.4 kbit/s (TCH/F14.4) not allowed (not used)1 14.5/14.4 kbit/s (TCH/F14.4) allowed (not used)

Bit 3 : 0 SpareBit 2 : 0 12.0/9.6 kbit/s not allowed (not used)

1 12.0/9.6 kbit/s allowed (not used)Bit 1 : 0 6.0/4.8 kbit/s not allowed (not used)

1 6.0/4.8 kbit/s allowed (not used)

PARAMETER ORIGIN - ACTION ON PARAMETERStored in order to be able to allocate the required channel. Use for the sending of the "ChannelActivation" message to the BTS and the "Assignment Command" message to the MS.


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6.3.4 LAYER 3 HEADER INFORMATION

TYPE : O

DEFINITIONThis element is used to supply the BSS with information that needs to be included in the

header of layer 3 messages over the radio interface.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 0 0 1 1 1

Length (value = 2)

0 0 0 0 Protocol Discriminator

0 0 0 0 Transaction Identifier


Protocol Discriminator and Transaction Identifier are used in order to have information for thesending of the "Assignment Command" message to the MS. Refer to the general part at thebeginning of this dictionary.

PARAMETER ORIGIN - ACTION ON PARAMETER3GPP TS 08.08 states that this IE has no useful purpose. Thus contents of this informationelement will be ignored by the BSC.


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6.3.5 PRIORITY

TYPE : O

DEFINITIONDefinition of the priority of the request for traffic channels only.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 0 0 1 1 0

Length

spare pci Priority level qa pvi


pci = Preemption Capability indicator0 this allocation request shall not pre-empt an existing connection1 this allocation request may preempt an existing connection

priority level:6 5 4 30 0 0 0 spare0 0 0 1 priority level 1 = highest priority0 0 1 0 priority level 2 = second highest priority: : : :1 1 1 0 priority level 14 = lowest priority1 1 1 1 priority not used

if queuing is allowed (qa =1) and priority =1111 then lowest priority is assigned.if queuing is allowed (qa =1) and priority =0000 then lowest priority is assigned.

qa = queuing allowed indicator0 queuing not allowed1 queuing allowed

pvi = Preemption Vulnerability Indicator0 this connection shall not be pre-empted by another allocation request1 this connection might be pre-empted by another allocation request

PARAMETER ORIGIN - ACTION ON PARAMETER- Taken into account in order to queue, if needed, the message.

- pvi and pci bits are taken into account by the BSC for resource pre-emption when theeMLPP feature is activated.


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6.3.6 CIRCUIT IDENTITY CODE

TYPE : O

DEFINITIONDefines the terrestrial channel over which the call will pass.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 0 0 0 0 1

PCM multiplex in use (high part)

(low part) TS in use


PCM Multiplex defines the terrestrial channel

TS in use

PARAMETER ORIGIN - ACTION ON PARAMETERStored for further usage. Control if terrestrial channel is already in use.

In case of Signalling Channel type, the BSC reacts at the reception of this parameter with anASSIGNMENT FAILURE (cause protocol error).

6.3.7 DOWNLINK DTX FLAG

TYPE : O

DEFINITIONThis flag indicates if the DTX function in the BSS is to be disabled on a particular radiochannel.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 1 1 0 0 1

0 0 0 0 0 0 0 DTXFlag

Bits 2 to 8 spare are set to 0.

Bit 1 = 1 : DTX disabled in downlink direction0 : DTX enabled in downlink direction

PARAMETER ORIGIN - ACTION ON PARAMETER

It has to be included only for speech and not for signalling. In case of speech, the DTX is sentto the BTS in the "CHANNEL ACTIVATION" message. From the B7.2, the BSC does not takeinto account the value of the DTXd flag coming from the MSC, but only the flag coming fromthe OMC.


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6.3.8 CLASSMARK INFORMATION TYPE 2 (GSM PHASE 1 MS)

TYPE : O

DEFINITION :Defines certain attributes of the Mobile Station equipment in use on a particular transaction as

given by a MS supporting GSM phase 1.

BIT DESCRIPTION

8 7 6 5 4 3 2 1

0 0 0 1 0 0 1 0 1

Length 2

Revisionlevel

EncryptionAlgorithm

RF powerCapability

3

0 0 0 0 SM.cap

Frequency capabili ty 4


Revision level :0 0 0 Reserved for phase 1.All other values reserved

Encryption Algorithm :0 0 Algorithm A5/1All other values reserved.

RF Power capability :BCCH = GSM900

0 0 0 class 10 0 1 class 20 1 0 class 30 1 1 class 41 0 0 class 5


BCCH = DCS18000 0 0 class 10 0 1 class 2


SM Capability :0 short message capability not present1 short message capability present

FC Freq

Layer3 Message Dictionary a Interface_112030064_04

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