TIA/EIAINTERIM STANDARD

Interoperability Specifications (IOS)For cdma2000 Access NetworkInterfaces

TIA/EIA/IS-2001

DECEMBER 2000

TELECOMMUNICATIONS INDUSTRY ASSOCIATION

The Telecommunications Industry Association represents the communications sector of

TIA

/EIA

/IS

-200

1

NOTICE

TIA/EIA Engineering Standards and Publications are designed to serve the public interest through eliminatingmisunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement ofproducts, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for hisparticular need. Existence of such Standards and Publications shall not in any respect preclude any member ornonmember of TIA/EIA from manufacturing or selling products not conforming to such Standards and Publications,nor shall the existence of such Standards and Publications preclude their voluntary use by those other than TIA/EIAmembers, whether the standard is to be used either domestically or internationally.

Standards and Publications are adopted by TIA/EIA in accordance with the American National Standards Institute(ANSI) patent policy. By such action, TIA/EIA does not assume any liability to any patent owner, nor does itassume any obligation whatever to parties adopting the Standard or Publication.

TIA/EIA INTERIM STANDARDS

TIA/EIA Interim Standards contain information deemed to be of technical value to the industry, and are published atthe request of the originating Committee without necessarily following the rigorous public review and resolution ofcomments which is a procedural part of the development of a TIA/EIA Standard.

TIA/EIA Interim Standards should be reviewed on an annual basis by the formulating Committee and a decisionmade on whether to proceed to develop a TIA/EIA Standard on this subject. TIA/EIA Interim Standards must becancelled by the Committee and removed from the TIA/EIA Standards Catalog before the end of their third year ofexistence.

Publication of this TIA/EIA Interim Standard for trial use and comment has been approved by theTelecommunications Industry Association. Distribution of this TIA/EIA Interim Standard for comment shall notcontinue beyond 36 months from the date of publication. It is expected that following this 36 month period, thisTIA/EIA Interim Standard, revised as necessary, will be submitted to the American National Standards Institute forapproval as an American National Standard. Suggestions for revision should be directed to: Standards &Technology Department, Telecommunications Industry Association, 2500 Wilson Boulevard, Arlington, VA 22201.

(From Project No. 4545, formulated under the cognizance of the TIA TR-45.4 Subcommittee on Radio to SwitchingTechnology.)

Published by

TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2000Standards & Technology Department

2500 Wilson BoulevardArlington, VA 22201

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Table of Contents1

FOREWORD............................................................................................................................................................ XXIV2

COPYRIGHT INFORMATION............................................................................................................................. XXIX3

1. FUNCTIONAL OVERVIEW................................................................................................................................. 14

1.1 PURPOSE............................................................................................................................................................151.2 SCOPE................................................................................................................................................................361.3 ORGANIZATION ...............................................................................................................................................47

1.3.1 Architectures Supported...................................................................................................................... 481.3.2 UNUSED SECTION .............................................................................................................................. 491.3.3 IOS V4.0 Layout .................................................................................................................................... 410

1.4 DOCUMENTATION CONVENTIONS...............................................................................................................5111.4.1 Procedural Descriptions..................................................................................................................... 612

1.5 REFERENCES.....................................................................................................................................................7131.5.1 Telecommunications Industry Association (TIA) / Electronics Industry Association (EIA) . 7141.5.3 International Telecommunications Union - Telecommunications Sector (ITU-T) ................... 9151.5.4 Other......................................................................................................................................................1016

1.6 TERMINOLOGY...............................................................................................................................................11171.6.1 Acronyms ..............................................................................................................................................11181.6.2 Definitions............................................................................................................................................1719

1.7 INTERFACE MODEL ......................................................................................................................................21201.7.1 Reference Points A, Ater, and Aquater...................................................................................................21211.7.2 Interface Reference Model.................................................................................................................22221.7.3 MSC BS Functional Partitioning.................................................................................................24231.7.4 Information Flows...............................................................................................................................25241.7.5 Protocol Reference Model.................................................................................................................2625

1.7.5.1 MSC-BS interface Channel Types ..........................................................................................................26261.7.5.2 Transport Protocols ................................................................................................................................26271.7.5.3 Layer 3 - A1 Interface: Base Station Application Part ...........................................................................2728

1.7.6 Packet Data Micro-Mobility and Macro-Mobility Concepts ....................................................2929

2. CALL PROCESSING AND SUPPLEMENTARY SERVICES ......................................................................3030

2.1 CALL CONTROL .............................................................................................................................................30312.1.1 Terrestrial Circuit Allocation ..........................................................................................................30322.1.2 Radio Channel Allocation ................................................................................................................30332.1.3 Traffic Channel Release.....................................................................................................................3034

2.2 A1 INTERFACE CALL SETUP FOR VOICE AND CIRCUIT DATA CALLS ................................................31352.2.1 Mobile Originated Calls ...................................................................................................................3136

2.2.1.1 Connection Management (CM) Service Request ....................................................................................31372.2.1.2 Complete Layer 3 Information................................................................................................................32382.2.1.3 UNUSED SECTION (Setup)..................................................................................................................33392.2.1.4 UNUSED SECTION...............................................................................................................................33402.2.1.5 Assignment Request................................................................................................................................33412.2.1.6 Assignment Complete.............................................................................................................................33422.2.1.7 Assignment Failure..................................................................................................................................33432.2.1.8 UNUSED SECTION...............................................................................................................................34442.2.1.9 Progress ...................................................................................................................................................34452.2.1.10 UNUSED SECTION ...........................................................................................................................34462.2.1.11 UNUSED SECTION 2.2.1.12 UNUSED SECTION..........................................................................34472.2.1.13 UNUSED SECTION ...........................................................................................................................34482.2.1.15 UNUSED SECTION ...........................................................................................................................3449

2.2.2 Mobile Origination Examples ..........................................................................................................34502.2.2.1 Mobile Origination ..................................................................................................................................3551

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2.2.2.2 Mobile Origination with Access Probe Handoff, Access Handoff and Channel Assignment into1Soft/Softer Handoff...............................................................................................................................................3722.2.2.3 Mobile Origination with PACA Service..................................................................................................423

2.2.3 Mobile Terminated Voice and Circuit Data Calls .......................................................................4842.2.3.1 Paging Request.........................................................................................................................................4852.2.3.2 Paging Response......................................................................................................................................4962.2.3.3 UNUSED SECTION...............................................................................................................................4972.2.3.4 UNUSED SECTION...............................................................................................................................4982.2.3.5 UNUSED SECTION...............................................................................................................................4992.2.3.6 Assignment Request................................................................................................................................50102.2.3.7 Assignment Complete.............................................................................................................................50112.2.3.8 Assignment Failure..................................................................................................................................50122.2.3.9 UNUSED SECTION h............................................................................................................................50132.2.3.10 Connect ................................................................................................................................................50142.2.3.11 UNUSED SECTION ...........................................................................................................................50152.2.3.12 Alert With Information ........................................................................................................................5116

2.2.4 Mobile Termination Examples .........................................................................................................52172.2.4.1 Mobile Termination.................................................................................................................................52182.2.4.2 Mobile Termination, Assignment Retry .................................................................................................5519

2.2.5 Mobile to Mobile Calls......................................................................................................................58202.2.6 Emergency Calls .................................................................................................................................58212.2.7 Test Calls ..............................................................................................................................................58222.2.8 BS Initiated Call Setup ......................................................................................................................5823

2.2.8.1 BS Service Request..................................................................................................................................58242.2.8.2 BS Service Response...............................................................................................................................59252.2.8.3 BS Initiated Call Setup Example..............................................................................................................5926

2.3 A1 INTERFACE CALL CLEARING PROCEDURES........................................................................................61272.3.1 Call Clearing Initiated by the MS or BS........................................................................................6128

2.3.1.1 Successful Clear Scenarios.......................................................................................................................61292.3.1.2 Unsuccessful Call Clearing Procedures....................................................................................................61302.3.1.3 UNUSED SECTION...............................................................................................................................61312.3.1.4 UNUSED SECTION...............................................................................................................................61322.3.1.5 Clear Request...........................................................................................................................................61332.3.1.6 Clear Command .......................................................................................................................................62342.3.1.7 Clear Complete........................................................................................................................................6235

2.3.2 Call Clearing Initiated by the MSC................................................................................................63362.3.2.1 Scenario 1 - Clear from the Network.......................................................................................................63372.3.2.2 UNUSED SECTION...............................................................................................................................63382.3.2.3 Call clearing via Clear Command .............................................................................................................63392.3.2.4 Call Clearing when Tones/Announcements are Provided........................................................................6440

2.3.3 Call Clearing Collision.....................................................................................................................64412.3.4 Call Clearing for Handoff .................................................................................................................64422.3.5 Call Flow Diagrams for Call Clear Operation.............................................................................6443

2.3.5.1 Call Clear Initiated by MS.......................................................................................................................64442.3.5.2 Call Clear Initiated by BS........................................................................................................................66452.3.5.3 Call Clear Initiated by MSC ....................................................................................................................6746

2.4 TRAFFIC CHANNEL RADIO LINK SUPERVISION........................................................................................68472.5 SUPPORT OF SUPPLEMENTARY SERVICES...............................................................................................6848

2.5.1 Support of TIA/EIA 664 Wireless Features.....................................................................................68492.5.1.1 Flash with Information............................................................................................................................69502.5.1.2 Flash with Information Ack ....................................................................................................................69512.5.1.3 Feature Notification.................................................................................................................................70522.5.1.4 Feature Notification Ack.........................................................................................................................7053

2.5.2 DTMF Transmission Using In-band Tones.....................................................................................71542.5.3 Burst DTMF Transmission.................................................................................................................7155

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2.5.4 UNUSED SECTION ............................................................................................................................7112.5.5 Supplementary Services Flow Charts .............................................................................................722

2.5.5.1 UNUSED SECTION...............................................................................................................................7232.5.5.2 Call Waiting.............................................................................................................................................7242.5.5.3 UNUSED SECTION...............................................................................................................................7352.5.5.4 UNUSED SECTION...............................................................................................................................7362.5.5.5 Three-Way Calling (Method 1)............................................................................................................7372.5.5.6 Three-Way Calling - (Method 2).............................................................................................................7482.5.5.7 UNUSED SECTION...............................................................................................................................7492.5.5.8 UNUSED SECTION...............................................................................................................................74102.5.5.9 Message Waiting Notification on the Paging Channel.............................................................................75112.5.5.10 Message Waiting Notification on the Traffic Channel.........................................................................7612

2.6 SUPPORT OF SHORT MESSAGE SERVICE ...................................................................................................77132.6.1 SMS Procedures..................................................................................................................................7814

2.6.1.1 SMS - Mobile Originated Point-to-Point ................................................................................................78152.6.1.2 SMS - Mobile Terminated Point-to-Point ..............................................................................................78162.6.1.3 SMS - Broadcast......................................................................................................................................7817

2.6.2 SMS Delivery on the Control Channel ...........................................................................................79182.6.2.1 ADDS Page..............................................................................................................................................79192.6.2.2 ADDS Transfer .......................................................................................................................................79202.6.2.3 ADDS Page Ack......................................................................................................................................81212.6.2.4 SMS Message Flow Using ADDS, Control Channel..............................................................................8122

2.6.3 SMS Delivery on the Traffic Channel..............................................................................................89232.6.3.1 ADDS Deliver .........................................................................................................................................89242.6.3.2 ADDS Deliver Ack..................................................................................................................................89252.6.3.3 SMS Message Flow Using ADDS, Traffic Channel ...............................................................................9026

2.7 SUPPORT OF OVER-THE-AIR SERVICE PROVISIONING (OTASP) AND OVER THE AIR27PARAMETER ADMINISTRATION (OTAPA)............................................................................................................9228

2.7.1 OTASP Support ...................................................................................................................................92292.7.1.1 OTASP Call Setup ..................................................................................................................................93302.7.1.2 OTASP Data Exchanges ..........................................................................................................................93312.7.1.3 ADDS Deliver .........................................................................................................................................93322.7.1.4 ADDS Deliver ACK................................................................................................................................93332.7.1.5 SSD Update procedure............................................................................................................................93342.7.1.6 Privacy Mode procedure.........................................................................................................................93352.7.1.7 Rejection..................................................................................................................................................93362.7.1.8 OTASP Call Clear ...................................................................................................................................93372.7.1.9 OTASP Message Flow............................................................................................................................9438

2.7.2. OTAPA support .........................................................................................................................................96392.8 ERROR HANDLING .........................................................................................................................................9740

2.8.1 Rejection...............................................................................................................................................97412.8.1.1 Successful Operation...............................................................................................................................97422.8.1.2 Failure Operation.....................................................................................................................................9743

2.9 UNUSED SECTION.......................................................................................................................................97442.10 MOBILE ORIGINATED CALLS WITH PACA SERVICE .............................................................................9845

2.10.1 PACA Service Support .......................................................................................................................99462.10.1.1 PACA Command .................................................................................................................................99472.10.1.2 PACA Command Ack..........................................................................................................................99482.10.1.3 PACA Update....................................................................................................................................100492.10.1.4 PACA Update Ack............................................................................................................................10150

2.11 SUPPORT OF POSITION LOCATION SERVICE ..........................................................................................102512.12 USER ZONES..................................................................................................................................................10352

2.12.1 Invoking User Zone at Registration..............................................................................................103532.12.2 Use of User Zones During Call Setup............................................................................................104542.12.3 Changing User Zone During a Call ..............................................................................................10555

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2.12.3.1 User Zone Change ..............................................................................................................................10512.13 CIRCUIT DATA CALLS................................................................................................................................1062

2.13.1 Asynchronous Data and Group-3 Fax Services..........................................................................10632.13.1.1 Data Only...........................................................................................................................................1064

2.13.2 A5 Connections for Circuit Data Calls ........................................................................................10652.13.3 Support for Handoffs of Asynchronous Data and G3 Fax Calls ..............................................1076

2.14 PACKET DATA CALLS ................................................................................................................................10872.14.1 Packet Data Assumptions................................................................................................................10982.14.2 BS Initiated Call Setup....................................................................................................................1099

2.14.2.1 BS Service Request.............................................................................................................................110102.14.2.2 BS Service Response..........................................................................................................................110112.14.2.3 BS Initiated Call Setup Example ........................................................................................................11112

2.14.3 A8/A9 Interface Procedures............................................................................................................112132.14.4 A8/A9 Interface Setup Procedures And Messages......................................................................11214

2.14.4.1 A9-Setup-A8......................................................................................................................................112152.14.4.2 A9-Connect-A8..................................................................................................................................113162.14.4.3 A9-BS Service Request ......................................................................................................................114172.14.4.4 A9-BS Service Response....................................................................................................................11418

2.14.5 A8/A9 Interface Clearing Procedures and Messages ................................................................115192.14.5.1 Successful Clearing Scenarios.............................................................................................................115202.14.5.2 Unsuccessful A8 Interface Clearing Procedures.................................................................................116212.14.5.3 A9-Release-A8...................................................................................................................................117222.14.5.4 A9-Release-A8 Complete..................................................................................................................117232.14.5.5 A9-Disconnect-A8.............................................................................................................................11824

2.14.6 A8/A9 Interface Handoff Procedures and Messages ..................................................................119252.14.6.1 A9-Air Link (AL) Connected.............................................................................................................119262.14.6.2 A9-Air Link (AL) Connected Ack.....................................................................................................119272.14.6.3 A9-Air Link (AL) Disconnected........................................................................................................120282.14.6.4 A9-Air Link (AL) Disconnected Ack ................................................................................................12029

2.14.7 A8/A9 Call Flows.............................................................................................................................121302.14.7.1 Mobile Initiated Initial Call Setup and Mobile IP Registration Successful Operation ...................121312.14.72 BS Initiated Call Release to Dormant State...........................................................................................123322.14.7.3 MS Initiated Call Release to Dormant State......................................................................................125332.14.7.4 MS Power Down ...............................................................................................................................127342.14.7.5 PDSN Initiated Service Release..........................................................................................................129352.14.7.6 MS Initiated Call Re-Activation from Dormant State.......................................................................130362.14.7.7 Network Initiated Call Re-Activation from Dormant State...............................................................130372.14.7. Mobile Terminated Packet Data Rejection During a Voice Call............................................................133382.14.7.9 Dormant Handoff (Inter-BSC/Inter_PCF) - Mobile served by same PDSN .....................................134392.14.7.10 Dormant Handoff (Inter-BSC/Inter_PCF) - Mobile served by a different PDSN.............................136402.14.7.11 Soft / Softer Handoff..........................................................................................................................137412.14.7.12 Inter-BS Hard Handoff (within the same PCF) .................................................................................138422.14.7.13 Inter-PCF Hard Handoff (Within same PDSN).................................................................................141432.14.7.14 Inter-PCF Hard Handoff (Within same PDSN) With Return On Failure..........................................14444

2.15 A10/A11 INTERFACE PROCEDURES..........................................................................................................147452.15.1 A10 Interface Setup Procedures.....................................................................................................14846

2.15.1.1 A10 Connection Establishment..........................................................................................................148472.15.2 A10 Interface Operational Procedures.........................................................................................15048

2.15.2.1 A10 Connection Periodic Re-registration........................................................................................150492.15.3 A10 Interface Release Procedures.................................................................................................15050

2.15.3.1 A10 Connection Release PCF Requested ......................................................................................150512.15.3.2 A10 Connection Release PDSN Initiated.......................................................................................15152

2.15.4 A10 Interface Packet Accounting Procedures ............................................................................152532.15.5 A10/A11 Interface Call Flows........................................................................................................15254

2.15.5.1 Mobile Originated Packet Call Setup Successful Operation...........................................................15255

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2.15.5.2 Mobile Originated Packet Call Setup Failure Operation.................................................................15512.15.5.3 Mobile Originated Packet Call Setup With registration to alternate PDSN...................................15722.15.5.4 Packet Data Service Session Clearing-PDSN Initiated.......................................................................16032.15.5.5 Packet Data Service Session Clearing MSC Initiated......................................................................16242.15.5.6 Packet Data Service Session Clearing MS Initiated.........................................................................16352.15.5.7 Packet Data Service Session PDSN Initiated (Crossing A11-Registration Request and A11-6Registration Update)...........................................................................................................................................16472.15.5.8 Inter-PCF Dormant Handoff Mobile Continues to be Served by the Serving PDSN.....................16682.15.5.9 Inter-PCF Dormant Handoff Mobile Served by a New Target PDSN ...........................................17092.15.5.10 Inter-PCF Hard Handoff Mobile Continues to be Served by the Serving PDSN ...........................174102.15.5.11 Inter-BS Hard Handoff Mobile Served by a New Target PDSN ....................................................17811

3. RADIO RESOURCE MANAGEMENT............................................................................................................18212

3.1 RADIO CHANNEL SUPERVISION................................................................................................................182133.1.1 Traffic Channel Radio Link Supervision......................................................................................182143.1.2 Idle Channel Observation...............................................................................................................18215

3.2 RADIO CHANNEL MANAGEMENT ............................................................................................................182163.2.1 Radio Channel Configuration Management...............................................................................182173.2.2 Radio Traffic Channel Management .............................................................................................18318

3.2.2.1 Radio Channel Allocation......................................................................................................................183193.2.2.2 Radio Traffic Channel Release...............................................................................................................183203.2.2.3 Radio Traffic Channel Power Control...................................................................................................183213.2.2.4 UNUSED SECTION.............................................................................................................................183223.2.2.5 Channel Encoding and Decoding............................................................................................................18323

3.3 HANDOFF VIA MSC.....................................................................................................................................184243.3.1 Introduction.......................................................................................................................................18425

3.3.1.1 Recognition That a Handoff is Required by a BS..................................................................................184263.3.1.2 Recognition That a Handoff is Required by the MSC ..........................................................................184273.3.1.3 Concept of Designated Cell ...............................................................................................................18428

3.3.2 Inter-BS Hard Handoff .....................................................................................................................185293.3.2.1 Triggering Phase.....................................................................................................................................185303.3.2.2 Target Determination Phase..................................................................................................................185313.3.2.3 Resource Establishment.........................................................................................................................186323.3.2.4 Execution Phase.....................................................................................................................................187333.3.2.5 UNUSED SECTION.............................................................................................................................189343.3.2.6 Call Clearing...........................................................................................................................................189353.3.2.7 Handoff Failure Handling......................................................................................................................19036

3.3.3 Intra-BS Handoff ...............................................................................................................................192373.3.3.1 Handoff Performed................................................................................................................................19238

3.4 HANDOFF VIA DIRECT BS-TO-BS SIGNALING........................................................................................193393.4.1 A3 Interface Procedures and Messages........................................................................................19340

3.4.1.1 A3 Interface Setup Procedures and Messages.......................................................................................193413.4.1.2 A3 Interface Operational Procedures and Messages .............................................................................194423.4.1.3 A3 Interface Clearing Procedures and Messages ...................................................................................20143

3.4.2 UNUSED SECTION ..........................................................................................................................203443.4.3 A7 Interface Procedures and Messages........................................................................................20345

3.4.3.1 A7 Interface Messages ..........................................................................................................................203463.4.4 Soft/Softer Handoff Addition...........................................................................................................211473.4.5 Soft/softer Handoff Removal............................................................................................................211483.4.6 Cell Removal by a Target BS..........................................................................................................211493.4.7 Call Clearing.....................................................................................................................................212503.4.8 Handoff Performed............................................................................................................................212513.4.9 Access Handoff and Channel Assignment into Soft Handoff.....................................................212523.4.10 Soft/Softer Handoff of High Speed Packet Data..........................................................................21353

3.4.10.1 Soft/Softer Handoff of Forward Link Bursts of Data........................................................................21354

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3.4.10.2 Soft/Softer Handoff of Reverse Link Bursts of Data.........................................................................21413.5 HANDOFF CALL FLOWS..............................................................................................................................2152

3.5.1 UNUSED SECTION ..........................................................................................................................21533.5.2 Handoff Call Flows...........................................................................................................................2154

3.5.2.1 Hard Handoff (via MSC).......................................................................................................................21553.5.2.3 Soft/softer Handoff Using Direct BS to BS (A3 and A7) Connections ................................................2236

4. MOBILITY MANAGEMENT, AUTHENTICATION, AND PRIVACY.......................................................2337

4.1 MOBILITY MANAGEMENT ........................................................................................................................23384.1.1 Paging.................................................................................................................................................23394.1.2 Registration and Deregistration....................................................................................................23310

4.1.2.1 Network Initiated Registration Procedures ...........................................................................................233114.1.2.2 Mobile Initiated Registration.................................................................................................................234124.1.2.3 Location Updating Request...................................................................................................................235134.1.2.4 Location Updating Accept ....................................................................................................................235144.1.2.5 Location Updating Reject ......................................................................................................................236154.1.2.6 Power Down Registration at the End of a Call......................................................................................23616

4.1.3 UNUSED SECTION ..........................................................................................................................236174.1.4 UNUSED SECTION ..........................................................................................................................23618

4.2 AUTHENTICATION AND PRIVACY ...........................................................................................................237194.2.1 Shared Secret Data Procedures.....................................................................................................23920

4.2.1.1 SSD Update Procedure - Successful Case.............................................................................................240214.2.1.2 SSD Update Request.............................................................................................................................241224.2.1.3 Base Station Challenge...........................................................................................................................241234.2.1.4 Base Station Challenge Response..........................................................................................................242244.2.1.5 SSD Update Response..........................................................................................................................24225

4.2.2 Terminal Authentication .................................................................................................................243264.2.2.1 Authentication Request.........................................................................................................................244274.2.2.2 Authentication Response......................................................................................................................24428

4.2.3 Parameter Update.............................................................................................................................245294.2.3.1 Parameter Update Request....................................................................................................................245304.2.3.2 Parameter Update Confirm....................................................................................................................24631

4.2.4 Signaling Message Encryption......................................................................................................247324.2.5 Voice Privacy.....................................................................................................................................24733

4.2.5.1 Privacy Mode Procedure.......................................................................................................................247344.2.5.2 UNUSED SECTION.............................................................................................................................248354.2.5.3 Privacy Mode Command.......................................................................................................................248364.2.5.4 Privacy Mode Complete.......................................................................................................................24937

4.3 PACKET DATA SECURITY CONSIDERATIONS ........................................................................................250384.3.1 PCF-PDSN Security Association...................................................................................................25039

4.3.1.1 Computing Registration Authentication Extension Values ...................................................................25040

5. LAYERS 1 & 2 AND TERRESTRIAL FACILITY MANAGEMENT..........................................................25241

5.1 PHYSICAL LAYER SPECIFICATION (LAYER 1) ........................................................................................252425.2 ANSI SS7 TRANSPORT SPECIFICATION (LAYER 2)...............................................................................25243

5.2.1 Field of Application .........................................................................................................................253445.2.2 Message Transfer Part (MTP) Functions.....................................................................................25345

5.2.2.1 General...................................................................................................................................................253465.2.2.2 Level 1 (T1.111.2).................................................................................................................................253475.2.2.3 Level 2 (T1.111.3).................................................................................................................................254485.2.2.4 Level 3 (T1.111.4).................................................................................................................................254495.2.2.5 Testing and Maintenance (T1.111.7) ....................................................................................................256505.2.2.6 Interface Functions................................................................................................................................256515.2.2.7 Overload Control (Message Throughput Congestion)..........................................................................25752

5.2.3 SCCP Transport Layer Specification (SCCP Functions) .........................................................25853

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5.2.3.1 Overview ...............................................................................................................................................25815.2.3.2 Primitives (T1.112.1) ............................................................................................................................25825.2.3.3 SCCP Messages (T1.112.2) ..................................................................................................................25935.2.3.4 SCCP Formats and Codes (T1.112.3)...................................................................................................26045.2.3.5 SCCP Procedures (T1.112.4) ................................................................................................................2605

5.2.4 Use of the SCCP ................................................................................................................................26265.2.4.1 The Direct Transfer Application Part ...................................................................................................26275.2.4.2 The BS Management Application Part .................................................................................................26285.2.4.3 Connection Establishment .....................................................................................................................26295.2.4.4 Connection Release................................................................................................................................266105.2.4.5 Abnormal SCCP Release .......................................................................................................................266115.2.4.6 SCCP Reference Generation Philosophy ..............................................................................................269125.2.4.7 SCCP Transfer of DTAP and BSMAP Messages ................................................................................26913

5.3 USE OF ATM (LAYER 2) .............................................................................................................................274145.3.1 Field of Application .........................................................................................................................274155.3.2 ATM Layer..........................................................................................................................................274165.3.3 ATM Adaptation Layer ....................................................................................................................27417

5.4 NETWORK AND TRANSPORT PROTOCOLS..............................................................................................275185.4.1 Signaling Connection Transport Protocol Options ..................................................................275195.4.2 User Traffic Connection Transport Protocol Options...............................................................277205.4.3 TCP Transport Protocol Usage......................................................................................................27821

5.4.3.1 General Use of TCP ..............................................................................................................................278225.4.3.2 Use of TCP for the A3 and A7 Interfaces.............................................................................................280235.4.3.3 Use of TCP for the A9 Interface...........................................................................................................28024

5.4.4 IP Network Protocol Usage............................................................................................................281255.4.5 UDP Transport Protocol Usage.....................................................................................................28126

5.4.5.1 UDP Transport Protocol Usage for the A11 Interface .........................................................................281275.4.5.2 UDP Transport Protocol Usage for the A9 Interface ...........................................................................28128

5.4.6 Mobile IP Protocol Usage...............................................................................................................282295.4.6.1 Mobile IP Based Tunneling Protocol ....................................................................................................28230

5.4.7 GRE Protocol Usage ........................................................................................................................284315.5 TERRESTRIAL CIRCUIT MANAGEMENT PROCEDURES.........................................................................28632

5.5.1 Terrestrial Circuit Allocation/Deallocation...............................................................................286335.5.1.1 A2 Terrestrial Circuit Allocation...........................................................................................................286345.5.1.2 A3 Connection Establishment ...............................................................................................................28635

5.5.2 Blocking/Unblocking ......................................................................................................................287365.5.2.1 A2 Terrestrial Circuit Blocking/Unblocking..........................................................................................28737

5.5.3 Reset Circuit Procedure ..................................................................................................................290385.5.3.1 A1 Reset Circuit (at the BS)..................................................................................................................290395.5.3.2 A1 Reset Circuit Acknowledge (from MSC) ........................................................................................291405.5.3.3 A1 Reset Circuit (at the MSC)..............................................................................................................292415.5.3.4 A1 Reset Circuit Acknowledge (from BS) ............................................................................................29242

5.5.4 Global System Reset .........................................................................................................................294435.5.4.1 A1 Reset ................................................................................................................................................294445.5.4.2 A1 Reset Acknowledge .........................................................................................................................295455.5.4.3 A1 Global Reset Examples ....................................................................................................................296465.5.4.4 UNUSED SECTION.............................................................................................................................301475.5.4.5 UNUSED SECTION.............................................................................................................................301485.5.4.6 UNUSED SECTION.............................................................................................................................301495.5.4.7 A7-Reset................................................................................................................................................301505.5.4.8 A7-Reset Acknowledge .........................................................................................................................301515.5.4.9 A7 Global Reset Examples ....................................................................................................................30252

5.5.5 Tandem Free Operation...................................................................................................................306535.5.5.1 Transcoder Control Request..................................................................................................................306545.5.5.2 Transcoder Control Acknowledge .........................................................................................................30755

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5.5.6 UNUSED SECTION ..........................................................................................................................3071

6. MESSAGES, INFORMATION ELEMENTS, AND TIMER DEFINITIONS ..............................................3082

6.1 MESSAGE DEFINITIONS ..............................................................................................................................30836.1.1 Generic Message Formats...............................................................................................................3084

6.1.1.1 A1 Message Header...............................................................................................................................30856.1.1.2 Message Body, Coding, and Ordering of Elements...............................................................................31166.1.1.3 Forward Compatibility Guidelines........................................................................................................3127

6.1.2 Call Processing Message Formats ................................................................................................31686.1.2.1 Complete Layer 3 Information..............................................................................................................31696.1.2.2 CM Service Request..............................................................................................................................317106.1.2.3 Paging Request.......................................................................................................................................327116.1.2.4 Paging Response....................................................................................................................................331126.1.2.5 UNUSED SECTION.............................................................................................................................339136.1.2.6 UNUSED SECTION.............................................................................................................................339146.1.2.7 UNUSED SECTION.............................................................................................................................339156.1.2.8 UNUSED SECTION.............................................................................................................................339166.1.2.9 UNUSED SECTION.............................................................................................................................339176.1.2.10 Connect ..............................................................................................................................................340186.1.2.11 UNUSED SECTION .........................................................................................................................340196.1.2.12 Progress..............................................................................................................................................341206.1.2.13 UNUSED SECTION .........................................................................................................................342216.1.2.14 UNUSED SECTION .........................................................................................................................342226.1.2.15 Assignment Request...........................................................................................................................343236.1.2.16 Assignment Complete........................................................................................................................349246.1.2.17 Assignment Failure.............................................................................................................................351256.1.2.18 UNUSED SECTION .........................................................................................................................351266.1.2.19 UNUSED SECTION .........................................................................................................................352276.1.2.20 Clear Request .....................................................................................................................................353286.1.2.21 Clear Command..................................................................................................................................355296.1.2.22 Clear Complete...................................................................................................................................357306.1.2.23 UNUSED SECTION .........................................................................................................................357316.1.2.24 Alert With Information ......................................................................................................................358326.1.2.25 UNUSED SECTION .........................................................................................................................359336.1.2.26 UNUSED SECTION .........................................................................................................................359346.1.2.27 UNUSED SECTION .........................................................................................................................359356.1.2.28 BS Service Request.............................................................................................................................359366.1.2.29 BS Service Response..........................................................................................................................36137

6.1.3 Supplementary Services Message Formats..................................................................................363386.1.3.1 UNUSED SECTION.............................................................................................................................363396.1.3.2 UNUSED SECTION.............................................................................................................................363406.1.3.3 UNUSED SECTION.............................................................................................................................363416.1.3.4 UNUSED SECTION.............................................................................................................................363426.1.3.5 UNUSED SECTION.............................................................................................................................363436.1.3.6 UNUSED SECTION.............................................................................................................................363446.1.3.7 Flash with Information..........................................................................................................................364456.1.3.8 Flash with Information Ack ..................................................................................................................367466.1.3.9 Feature Notification...............................................................................................................................368476.1.3.10 Feature Notification Ack....................................................................................................................372486.1.3.11 PACA Command ...............................................................................................................................373496.1.3.12 PACA Command Ack........................................................................................................................374506.1.3.13 PACA Update....................................................................................................................................375516.1.3.14 PACA Update Ack............................................................................................................................37852

6.1.4 Mobility Management Message Formats .....................................................................................379536.1.4.1 Authentication Request.........................................................................................................................37954

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6.1.4.2 Authentication Response......................................................................................................................38316.1.4.3 User Zone Update................................................................................................................................38626.1.4.4 SSD Update Request.............................................................................................................................38736.1.4.5 Base Station Challenge...........................................................................................................................38846.1.4.6 Base Station Challenge Response..........................................................................................................38956.1.4.7 SSD Update Response..........................................................................................................................39066.1.4.8 Location Updating Request...................................................................................................................39176.1.4.9 Location Updating Accept ....................................................................................................................39786.1.4.10 Location Updating Reject...................................................................................................................39896.1.4.11 Parameter Update Request.................................................................................................................399106.1.4.12 Parameter Update Confirm ................................................................................................................399116.1.4.13 UNUSED SECTION .........................................................................................................................400126.1.4.14 UNUSED SECTION .........................................................................................................................400136.1.4.15 UNUSED SECTION .........................................................................................................................400146.1.4.16 UNUSED SECTION .........................................................................................................................400156.1.4.17 UNUSED SECTION .........................................................................................................................400166.1.4.18 Privacy Mode Command ...................................................................................................................400176.1.4.19 Privacy Mode Complete....................................................................................................................40218

6.1.5 Handoff Message Formats...............................................................................................................403196.1.5.1 UNUSED SECTION.............................................................................................................................403206.1.5.2 UNUSED SECTION.............................................................................................................................403216.1.5.3 UNUSED SECTION.............................................................................................................................403226.1.5.4 Handoff Required ..................................................................................................................................404236.1.5.5 Handoff Request....................................................................................................................................414246.1.5.6 Handoff Request Acknowledge .............................................................................................................425256.1.5.7 Handoff Failure......................................................................................................................................430266.1.5.8 Handoff Command ................................................................................................................................431276.1.5.9 Handoff Required Reject .......................................................................................................................439286.1.5.10 Handoff Commenced..........................................................................................................................440296.1.5.11 Handoff Complete..............................................................................................................................441306.1.5.12 Handoff Performed.............................................................................................................................442316.1.5.13 UNUSED SECTION .........................................................................................................................443326.1.5.14 UNUSED SECTION .........................................................................................................................44333

6.1.6 Facility Management Message Formats ......................................................................................444346.1.6.1 UNUSED SECTION.............................................................................................................................444356.1.6.2 Block......................................................................................................................................................444366.1.6.3 Block Acknowledge ...............................................................................................................................446376.1.6.4 Unblock .................................................................................................................................................446386.1.6.5 Unblock Acknowledge...........................................................................................................................448396.1.6.6 Reset ......................................................................................................................................................449406.1.6.7 Reset Acknowledge ...............................................................................................................................450416.1.6.8 Reset Circuit ..........................................................................................................................................451426.1.6.9 Reset Circuit Acknowledge ...................................................................................................................453436.1.6.10 Transcoder Control Request .............................................................................................................454446.1.6.11 Transcoder Control Acknowledge.....................................................................................................454456.1.6.12 UNUSED SECTION .........................................................................................................................455466.1.6.13 UNUSED SECTION .........................................................................................................................455476.1.6.14 UNUSED SECTION .........................................................................................................................45548

6.1.7 Application Data Delivery Service (ADDS) Message Formats................................................456496.1.7.1 ADDS Page............................................................................................................................................456506.1.7.2 ADDS Transfer .....................................................................................................................................460516.1.7.3 ADDS Deliver .......................................................................................................................................465526.1.7.4 ADDS Page Ack....................................................................................................................................468536.1.7.5 ADDS Deliver Ack................................................................................................................................47154

6.1.8 Error Handling Messages ...............................................................................................................47255

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6.1.8.1 Rejection................................................................................................................................................47216.1.9 A3 Interface Message Formats .......................................................................................................4752

6.1.9.1 A3-Connect ...........................................................................................................................................47536.1.9.2 A3-Connect Ack....................................................................................................................................47946.1.9.3 A3-Remove............................................................................................................................................48156.1.9.4 A3-Remove Ack....................................................................................................................................48466.1.9.5 A3-Drop ................................................................................................................................................48676.1.9.6 A3-Propagation Delay Measurement Report .......................................................................................48886.1.9.7 A3-IS-95 FCH Forward ........................................................................................................................49096.1.9.8 A3-IS-95 FCH Reverse.........................................................................................................................491106.1.9.9 A3-IS-2000 FCH Forward ....................................................................................................................492116.1.9.10 A3-IS-2000 FCH Reverse.................................................................................................................493126.1.9.11 A3-Physical Transition Directive ......................................................................................................494136.1.9.12 A3-PhysicalTransition Directive Ack................................................................................................497146.1.9.13 A3-IS-2000 DCCH Forward..............................................................................................................500156.1.9.14 A3-IS-2000 DCCH Reverse..............................................................................................................501166.1.9.15 A3-Traffic Channel Status .................................................................................................................502176.1.9.16 A3-IS-2000 SCH Forward .................................................................................................................505186.1.9.17 A3-IS-2000 SCH Reverse.................................................................................................................50619

6.1.10 A9 Interface Message Formats .......................................................................................................507206.1.10.1 A9-Setup-A8......................................................................................................................................507216.1.10.2 A9-Connect-A8..................................................................................................................................511226.1.10.3 A9-Disconnect-A8.............................................................................................................................514236.1.10.4 A9-Release-A8...................................................................................................................................517246.1.10.5 A9-Release-A8 Complete..................................................................................................................520256.1.10.6 A9-BS Service Request ......................................................................................................................521266.1.10.7 A9-BS Service Response....................................................................................................................523276.1.10.8 A9-AL Connected..............................................................................................................................524286.1.10.9 A9-AL Connected Ack ......................................................................................................................526296.1.10.10 A9-AL Disconnected .........................................................................................................................527306.1.10.11 A9-AL Disconnected Ack..................................................................................................................52931

6.1.11 A11 Interface Message Formats.....................................................................................................530326.1.11.1 A11-Registration Request..................................................................................................................530336.1.11.2 A11-Registration Reply .....................................................................................................................534346.1.11.3 A11-Registration Update...................................................................................................................538356.1.11.4 A11-Registration Acknowledge .........................................................................................................54136

6.1.12 A7 Interface Message Formats .......................................................................................................544376.1.12.1 A7-Handoff Request..........................................................................................................................544386.1.12.2 A7-Handoff Request Ack ..................................................................................................................554396.1.12.3 A7-Drop Target .................................................................................................................................559406.1.12.4 A7-Drop Target Ack..........................................................................................................................561416.1.12.5 A7-Target Removal Request..............................................................................................................563426.1.12.6 A7-Target Removal Response...........................................................................................................566436.1.12.7 UNUSED SECTION .........................................................................................................................568446.1.12.8 UNUSED SECTION .........................................................................................................................568456.1.12.9 UNUSED SECTION .........................................................................................................................568466.1.12.10 A7- Source Transfer Performed .........................................................................................................569476.1.12.11 A7-Reset ............................................................................................................................................571486.1.12.12 A7-Reset Acknowledge......................................................................................................................572496.1.12.13 A7-Paging Channel Message Transfer ...............................................................................................573506.1.12.14 A7-Paging Channel Message Transfer Ack........................................................................................576516.1.12.15 A7-Access Channel Message Transfer ..............................................................................................577526.1.12.16 A7-Access Channel Message Transfer Ack.......................................................................................579536.1.12.17 A7-Burst Request ..............................................................................................................................580546.1.12.18 A7-Burst Response............................................................................................................................58655

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6.1.12.19 A7-Burst Commit ..............................................................................................................................59016.2 INFORMATION ELEMENT DEFINITIONS..................................................................................................5942

6.2.1 Generic Information Element Encoding.......................................................................................59436.2.1.1 Conventions...........................................................................................................................................59446.2.1.2 Information Element Identifiers.............................................................................................................59556.2.1.3 A1 Interface Information Element Types .............................................................................................61066.2.1.4 A3 and A7 Interface Information Elements...........................................................................................61376.2.1.5 Additional Coding and Interpretation Rules for Information Elements ................................................61386.2.1.6 Cross Reference of Information Elements With Messages ...................................................................6159

6.2.2 Information Elements .......................................................................................................................636106.2.2.1 Message Discrimination ........................................................................................................................636116.2.2.2 Data Link Connection Identifier (DLCI)...............................................................................................637126.2.2.3 Length Indicator (LI) .............................................................................................................................637136.2.2.4 Message Type.......................................................................................................................................638146.2.2.5 Message Type II ...................................................................................................................................642156.2.2.6 Channel Number....................................................................................................................................644166.2.2.7 Channel Type........................................................................................................................................645176.2.2.8 RF Channel Identity..............................................................................................................................647186.2.2.9 SID.........................................................................................................................................................649196.2.2.10 IS-95 Channel Identity.......................................................................................................................650206.2.2.11 UNUSED SECTION .........................................................................................................................651216.2.2.12 Encryption Information .....................................................................................................................652226.2.2.13 Voice Privacy Request .......................................................................................................................654236.2.2.14 Physical Channel Info ........................................................................................................................655246.2.2.15 Classmark Information Type 2..........................................................................................................657256.2.2.16 Mobile Identity..................................................................................................................................661266.2.2.17 Slot Cycle Index.................................................................................................................................664276.2.2.18 Priority...............................................................................................................................................664286.2.2.19 Cause..................................................................................................................................................66