1、 TIA STANDARD PROJECT 25 LINK CONTROL WORD FORMATS AND MESSAGES NEW TECHNOLOGY STANDARDS PROJECT - DIGITAL RADIO TECHNICAL STANDARDS TIA-102.AABF-A (Merger of TSB-102.AABF and AABF-1) DECEMBER 2004 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association wi
2、th the Electronic Industries Alliance ANSI/TIA-102.AABF-A-2004Approved: December 16, 2004Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Pub
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7、 determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-3603-UGRV1, formulated under the cognizance of the TIATR-8.10 Subcommittee on Trunking and Conventional Control.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2004 Standards and Technology D
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21、munications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A Page i Foreword (This foreword is not part of this bulletin.) This document has been submitted to APCO/NASTD/FED by the Telecommuni
22、cations Industry Association (TIA), as provided for in a Memorandum of Understanding (MOU) dated December 1993. That MOU provides that the APCO/NASTD/FED will devise a Common System Standard for digital public safety communications (the Standard), and that TIA shall provide technical assistance in t
23、he development of documentation for the Standard. This document has been developed with inputs from the APCO/TIA Project 25 Interface Committee (APIC), the APIC Trunking Task Group, the APIC Format Task Group, and the TIA Industry members. This document is being published because it is felt that the
24、re is an urgent need for technical information on the emerging digital techniques for Land Mobile Radio Service. This document describes the link control formats and messages for conventional and trunked systems utilizing the Common Air Interface meeting the Project 25 requirements. These definition
25、s are necessary to insure interoperability of radio units. As other documents describing the conventional and trunking protocols are developed, this document will be subject to change. All reasonable efforts have been made to ensure accuracy, but it should be understood that conformance test remain
26、to be developed and proven. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A Page ii Table of Contents 1 INTRODUCTION1 2 SCOPE .1 3 DOCUMENT REVISION HISTORY .2 4
27、SYMBOLS, ABBREVIATIONS, TERMS, DEFINITIONS, MNEMONICS .2 4.1.1 Symbols.2 4.1.2 Abbreviations.2 4.1.3 Terms 3 4.1.4 Definitions3 4.1.5 Mnemonics 3 5 REFERENCES.4 5.1 NORMATIVE REFERENCES4 5.2 INFORMATIVE REFERENCES .4 6 LINK CONTROL WORD OVERVIEW .5 7 LINK CONTROL WORD FORMATS.5 7.1 IMPLICIT MFID LC
28、MESSAGE BASIC FORMAT 5 7.2 EXPLICIT MFID LC MESSAGE BASIC FORMAT6 7.3 LC MESSAGES.7 7.3.1 Group Voice Channel User .7 7.3.2 Group Voice Channel Update .8 7.3.3 Unit to Unit Voice Channel User .8 7.3.4 Group Voice Channel Update - Explicit.9 7.3.5 Unit to Unit Answer Request .9 7.3.6 Telephone Interc
29、onnect Voice Channel User .10 7.3.7 Telephone Interconnect Answer Request.10 7.3.8 Call Termination/Cancellation .11 7.3.9 Group Affiliation Query11 7.3.10 Unit Registration Command12 7.3.11 Unit Authentication Command 12 7.3.12 Status Query .13 7.3.13 System Service Broadcast13 7.3.14 Secondary Con
30、trol Channel Broadcast 14 7.3.15 Adjacent Site Status Broadcast 14 7.3.16 RFSS Status Broadcast15 7.3.17 Network Status Broadcast 15 7.3.18 Status Update .16 7.3.19 Message Update.16 7.3.20 Call Alert17 7.3.21 Extended Function Command 17 7.3.22 Channel Identifier Update .18 7.3.23 Protection Parame
31、ter Broadcast.18 7.3.24 Secondary Control Channel Broadcast - Explicit (LCSCBX)19 7.3.25 Adjacent Site Status Broadcast Explicit (LCASBX) .20 7.3.26 Channel Identifier Update Explicit (LCCIUX).20 7.3.27 RFSS Status Broadcast Explicit (LCRSBX).21 7.3.28 Network Status Broadcast Explicit (LCNSBX).21 7
32、.4 STANDARD LC FIELD DEFINITIONS.22 7.5 LINK CONTROL WORD USAGES 31 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A Page iii Patent Identification The readers att
33、ention is called to the possibility that compliance with this document may require the use of one or more inventions covered by patent rights. By publication of this document no position is taken with respect to the validity of those claims or any patent rights in connection therewith. The patent ho
34、lders so far identified have, we believe, filed with APCO/NASTD/FED statements of willingness to grant licenses under those rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such licenses. Details may be obtained from APCO/NASTD/FED. TIA shall not be re
35、sponsible for identifying patents for which licenses may be required by this document or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Ericsson Inc.-Patent Nos. US 4,939,746 Copyright Telecommunications Industry Association Provided by
36、IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A Page iv This Page Intentionally Left Blank Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking p
37、ermitted without license from IHS-,-,-TIA-102.AABF-A Page 1 1 Introduction This document shall provide information that is necessary to define the formats and messages for the Link Control Words for both conventional and trunking operation. Link Control Words are code words that encode 9 octets of i
38、nformation. They may be embedded within voice messages or separated into voice terminators, as defined in the Project 25 FDMA Common Air Interface, reference 1. This document also incorporates information originally published as an addendum (TSB-102.AABF-1) to TSB-102.AABF. This addendum was publish
39、ed to optimize the capabilities of a Project 25 digital trunked radio system. The addendum provided information integral to the Link Control Word message formats for trunking operation only. 2 Scope The CAI Link Control Word Formats and messages document is part of an intended suite of standards nec
40、essary for interoperability of Project 25 systems. A general overview of the Project 25 standard is in the Project 25 System and Standard Definition given as reference 7. The reader should have familiarity with this document. Included in this reference are the Project 25 General System Model, Standa
41、rds Organization, Glossary, and the Statement of Requirements. This specification is to define the formats and messages of the Link Control Words that are to be used in the APCO Project 25 systems, both conventional and trunked. Not all of the Link Control words would apply to conventional systems.
42、Not all of them apply to trunked systems. Some Link Control words apply to both. Collectively the definitions cover the needs for both trunked and conventional systems. The Link Control words carry identification information and/or control information necessary and useful for notifying listeners on
43、a voice call of system events and status. Information being incorporated from TSB-102AABF-1 introduces VHF/UHF Multi Band Operations support for each of the following messages: Secondary Control Channel Broadcast Adjacent Site Status Broadcast RFSS Status Broadcast Network Status Broadcast Channel I
44、dentifier Update. The incorporated material defines the format for an “Explicit” version of each broadcast message and a VHF/UHF specific version of the Channel Identifier Update message. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reprodu
45、ction or networking permitted without license from IHS-,-,-TIA-102.AABF-A Page 2 This document does not define the error correction for the Link Control words, nor the details of the modulation on the radio channel. This is covered in the APCO 25 Common Air Interface, reference 1. This document make
46、s use of the fields defined in other documents, such as the APCO 25 Common Air Interface, reference 1, APCO 25 Common Air Interface Reserved Values, reference 2, and Project 25 - Trunking Control Channel Messages, reference 5. Among these definitions are the MFID, individual and group addresses, cha
47、nnel numbers, reserved bits, etc. 3 Document Revision History Table 1: Revision History Version Date Description ISSUE A 1-OCT-2003 Initial Draft. Merger of TSB-102.BAAF and Multi-Band Addendum, TSB-102-AABF-1. ISSUE B 7-JAN-2004 Updated based on comments received to Issue A ISSUE C 25-Mar-2004 Upda
48、ted based on comments received to Issue B. Update for non-zero standard MFID, 4 Symbols, Abbreviations, Terms, Definitions, Mnemonics The following sections provide a listing of phrases used throughout the rest of the document for which the reader may appreciate a little extra interpretive assistanc
49、e. 4.1.1 Symbols For the purposes of this Standard, the following symbols apply: The following numbering conventions will be used in this document. Decimal Hexadecimal Binary 13 $D %1101 The $ represents a number that is hexadecimal. The % represents a number that is binary. 4.1.2 Abbreviations For the purposes of this document, the following abbreviations apply: kb/s kilo bits per second
