1、 TIA STANDARD Project 25 Trunking Control Channel Formats New Technology Standards Projects Digital Radio Technical Standards TIA-102.AABB-A (Revision of TIA-102.AABB) July 2005 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic In
2、dustries Alliance ANSI/TIA-102.AABB-A-2005 Approved: January 10, 2005 Copyright 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 Publications are desig
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6、 adopting the Standard or Publication. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the appl
7、icability of regulatory limitations before its use. (From Standards Proposal No. 3-4623-RV1, formulated under the cognizance of the TIA TR-8.10 Subcommittee on Trunking and Conventional Control.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2004 Standards and Technology Department 2500 Wilso
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21、 Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABB-A i Foreword (This foreword is not part of the standard.) This document has been submitted to APCO/NASTD/FED by the Telecommunications Industry Associati
22、on (TIA), as provided for in a Memorandum of Understanding (MoU) dated December 1993. That MoU provides that APCO/NASTD/FED will devise a Common System Standard for digital public safety communications (the Standard), and that TIA shall provide technical assistance in the development of documentatio
23、n for the Standard. This document has been developed with inputs from the TIA/APCO Project 25 Interface Committee (APIC), the APIC Trunking Task Group, and TIA Industry members. This document is being published because it is felt that there is an urgent need for technical information for the emergin
24、g digital systems for Land Mobile Radio Service. This document describes the general descriptions, packet structures, information block structures for both single and multiple block formats for trunked radios meeting the Project 25 requirements. These definitions are necessary to ensure interoperabi
25、lity of trunked radio units. Efforts have been made to ensure accuracy, but it should be understood that conformance tests remain to be developed and proven. This Standard presents a design for control channel bit structures which was recommended by TIA to APCO/NASTD/FED as being suitable for use as
26、 part of their standard for a digital public safety radio system (Project 25). TIA expects that APCO/NASTD/FED will establish and publish additional standards for trunking operation which will then provide the basis for additional TIA standards planned for the Project 25 system. There is one annex i
27、n this Standard. Annex A is informative and is not considered part of this Standard. Stan Hansen Chairman, TR-8.10, Trunking and Conventional Control Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without
28、license from IHS-,-,-TIA-102.AABB-A ii Contents 1 Introduction. 1 1.1 Scope. 1 1.2 Revision history . 1 1.3 References 2 1.3.1 Normative References 2 1.3.2 Informative References 2 2 Overview 3 3 General descriptions. 5 3.1 Control channel designation 5 3.2 Modes of control channel. 5 3.3 Inbound Co
29、ntrol Channel Access 6 4 Packet structure 7 4.1 Frame Sync Word 7 4.2 Network Identifier. 7 4.3 Status Symbols 8 4.4 Data Error Correction. 9 5 Information Block Structure - Single Block Packet 10 5.1 Trunking Signaling Block Format . 12 5.2 Protected TSBK description. 14 5.3 Example of protected TS
30、BKs - Unit to Unit call 14 5.3.1 Service Request Packet . 15 5.3.2 Service Response Packet 16 5.4 ISP timing 17 6 Information Block Structure Multiple Bloc Trunking Packet Format. 19 6.1 Trunking Control Packet Header Format . 22 6.2 Data Block Structure 23 6.3 Protected Multiple Block Trunking pack
31、et description 24 Annex A (Informative): Glossary of Terms . 25 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABB-A iii Figures Figure 5-1 Single Block ISP Format.10
32、Figure 5-2 Single Block OSP Formats 11 Figure 5.1-1 Single Block Packet Transactions12 Figure 5.3-1 ISP/OSP TSBKs for Unit to Unit call example .15 Figure 5.4-1 ISP Timing Relationships.17 Figure 6-1 Multiple Block ISP Formats.20 Figure 6-2 Multiple Block OSP Formats.21 Figure 6.1-1 Trunking Control
33、 Packet Header Block22 Figure 6.1-2 Alternative Trunking Control Packet Header Block23 Tables Table 4.3-1 OSP Status Symbol Codes.8 Table 4.3-2 ISP Status Symbol Codes.8 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networkin
34、g permitted without license from IHS-,-,-TIA-102.AABB-A iv Patent Identification The readers attention 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 res
35、pect to the validity of those claims or any patent rights in connection therewith. The patent holders 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 de
36、siring to obtain such licenses. Details may be obtained from APCO/NASTD/FED. The following patent holders and patents have been identified in accordance with the TIA intellectual property rights policy: TIA shall not be responsible for identifying patents for which licenses may be required by this d
37、ocument or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Ericsson Inc. - Patent Nos. US 5,574,788 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permit
38、ted without license from IHS-,-,-TIA-102.AABB-A 1 1 Introduction 1.1 Scope The intent of this document is to define the general control channel structures to be employed on the Project 25 trunking control channel. The 9600 b/s control channel scheme is designed to be compatible with ANSI/TIA/EIA 102
39、.BAAA, Project 25 FDMA Common Air Interface. 1.2 Revision history 930527 P25.TTG.(93)10 Unprotected Trunking Control Channel 930909 P25.TTG.(93)46, combined protected and unprotected formats 931020 This document is an integration of P25.TTG.(93)46 protected and unprotected formats and addendum P25.T
40、TG.(93)56, and supersedes P25.TTG.(93)10 original unprotected formats only. 931020 P25.TTG.(93)56 addendum to P25.TTG.(93)46 to address changes to: 1) terminology; 2) channel access scheme; 3) status symbol definition; and 4) ISP timing 941011 Incorporates modifications per the PN-3371 ballot commen
41、t summary. 950215 Incorporates modifications per discussions of the PN-3450 ballot comment summary of 941221. Additionally, the EF Johnson “unique TSBK DUID and Last Block Flag“ proposal of 950123 is incorporated appropriately. 960223 Incorporates modifications per ballot comment summary of 960216.
42、990712 Added Patent Identification. Updated for Standards Ballot. 991119 Updated for SP-4623 Ballot Resolution 030729 Cleaned up section 5.4 to align with Trunking Procedures document. Clarified section 4.2 and added Reference 6. 040727 Resolve editorial comments from the ballot closing 2004 January
43、 23. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABB-A 2 1.3 References The User is cautioned that the following references are the most current available at the ti
44、me of publication. The most current revision (including any addendum) of the following references should be used. 1.3.1 Normative References 1. ANSI/TIA 102.BAAA-A, Project 25 FDMA Common Air Interface, 2003 September - This document describes the basic over the air formats used on the Trunking cont
45、rol channel. 2. ANSI/TIA-102-AABA-A, APCO Project 25 Trunking Overview, 2004 June - This document describes the general offerings for the Trunking system. 3. ANSI/TIA-102.AABC-A, Project 25 Trunking Control Channel Messages, 2004 April - This is a separate companion document that describes the speci
46、fic use of the general Trunking control channel structures. 4 - TIA-102.BAAC-A Project 25 - Common Air Interface - Reserved Values. 2003 December 1.3.2 Informative References 5. TSB102.AABD, Project 25 Trunking Procedures, October 1997 - This companion document that addresses the specific service ne
47、eds, operations, and information content to satisfy the Trunking service need. 6. Project 25 Guidelines to Assign Wide Area Communication Network and System Identities, April 2001 This document provides guidelines which explain how to assign the WACN ID and System ID in a uniform manner (with and wi
48、thout an FCC Call Sign correlation) so that interoperability across diverse Project 25 systems is possible. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABB-A 3 2 Ov
49、erview The trunking control channel packet structure is based upon the data packet structure of the Common Air Interface (CAI). This allows the control channel transactions to both be usable on system channel resources supporting only control channel packets or system channel resources which support both control channel packets and other system packets (e.g. voice or data pac