1、 TIA-102.AABA-B (Revision of TIA-102.AABA-A) April 2011 Project 25 Trunking Overview Digital Radio Technical Standards ANSI/TIA-102.AABA-B 2011 APPROVED: APRIL 22, 2011 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings b
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6、3370-RV2, formulated under the cognizance of the TIA TR-8 Mobile and Personal Private Radio, TR-8.10 Subcommittee on Trunking and Conventional Control . Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Pl
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22、EREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-102.AABA-B Foreword (This foreword is not part of this standard.) This document will be submitted to PROJECT 25 by the Telecommunications Industry Association (TIA), as provided for in a Memorandum of Understanding
23、 (MOU) dated December 1993. That MOU provides that PROJECT 25 will devise a Common System Standard for digital public safety communications (the Standard), and that TIA shall provide technical assistance in the development of documentation for the Standard. This document has been developed with inpu
24、ts from the TIA Project 25 Interface Committee (APIC), the TR-8.10 Trunking and Conventional Control Subcommittee, and TIA industry members. This document is being published because it is felt that there is an urgent need for technical information on the emerging digital techniques for Land Mobile R
25、adio Service. This document provides an overview of functionality necessary to enable interoperability of trunked radio units with trunked infrastructure. This TIA standard presents an overview of trunking operation that was recommended by TIA to PROJECT 25 as being suitable for use as part of their
26、 standard for a digital public safety radio system (Project 25). TIA expects that PROJECT 25 will establish and publish one or more standards for trunking operation that will then provide the basis for numerous TIA standards planned for the Project 25 system. TIA-102.AABA-B i CONTENTS 1.0 Introducti
27、on 1 1.1 Scope 1 1.2 Document Description . 1 1.3 Document Revision History New Section . 1 1.4 Terms 1 1.5 References 2 1.5.1 Normative References 2 2.0 Trunking Overview 3 2.1 User Requirements . 3 2.2 Commonality with Conventional Systems . 3 2.3 Channel Access Methodologies . 4 2.4 System Access
28、 Control 4 2.5 Transmission and Message Trunking 4 2.6 Site Registration and Roaming 4 2.7 Supplementary Control 5 2.8 Interoperability and Migration . 5 3.0 Services 6 3.1 Teleservices 6 3.1.1 Group Voice Call . 6 3.1.2 Individual Voice Call . 6 3.2 Bearer Services. 6 3.2.1 CAI Confirmed Data Packe
29、t Delivery . 7 3.2.2 CAI Unconfirmed Data Packet Delivery . 7 3.3 Supplementary Services . 7 3.3.1 Voice Telephone Interconnect Call 7 3.3.2 Pre-programmed Data Messaging 7 4.0 Composite Control Channel (CCC) . 8 TIA-102.AABA-B ii Patent Identification The readers attention is called to the possibil
30、ity 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 holders so far identified have, w
31、e believe, filed statements of willingness to grant licenses under those rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such licenses. The following patent holders and patents have been identified in accordance with the TIA intellectual property righ
32、ts policy: No patents have been identified TIA shall not be responsible 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. TIA-102.AABA-B 1 1.0 Introduction The T
33、IA 102 series standard defines and describes the support of a trunking mode of operation. Functional requirements for enabling interoperability, migration, and compatibility are described in the families of TIA 102 series of standards and bulletins. The purpose of this revision TIA-102.AABA-B is to
34、(1) update information contained in TIA-102.AABA-A “Project 25 Trunking Overview” and (2) to incorporate provisions for TDMA operation. This revision also transfers information pertaining to security services into the relevant security services documentation suite. The relevant security services sta
35、ndard documents define protection of FDMA and TDMA trunked air interfaces. The relevant data services standard documents define data services on FDMA and TDMA trunked air interfaces. 1.1 Scope This document provides an overview of the essential attributes of the trunking mode of operation for trunke
36、d voice and data services that operate in accordance with the TIA-102 standards: 1.2 Document Description This document establishes general principles for a trunked air interface, designed for the family of Project 25 systems. Clause 1 defines new terms, definitions, and acronyms. Clause 2 provides
37、a general overview of Project 25 trunking operation. Clause 3 provides an overview of trunked system Services. Clause 4 addresses the composite control channel. 1.3 Document Revision History Revision date Revision comments April 1995 Issue A Published by TIA April 2011 Issue B approved to publicatio
38、n 1.4 Terms For the purposes of this document, the following new specific definitions apply. Other global Project 25 definitions may be found in the TIA-102 series of documents. TIA-102.AABA-B 2 The following terms are used in this document with the noted connotation. Term Definition FDMA Frequency
39、Division Multiple Access ID Identity ISSI Inter SubSystem Interface IP Internet Protocol Message trunking A trunking resource allocation method Protected General term for shielding information or operation PSTN Public Switched Telephone Network RF Subsystem The RF infrastructure which is bounded by
40、the open Project 25 interfaces and standard computer network gateway interfaces. It is the RF equipment and related nonstandard peripheral equipment which provides a standardized RF communication channel. System access control A methodology by which a subscriber unit requests services of a trunked s
41、ystem and is granted or denied such services. TDMA Time Division Multiple Access Transmission trunking A trunking resource allocation method 1.5 References The following standards contain provisions, which, through reference in this text, constitute provisions of this document. At the time of public
42、ation, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this document are encouraged to investigate the possibility of applying the most recent editions of the standard indicated below. ANSI and TIA maintain registers of currently valid nat
43、ional standards published by them. 1.5.1 Normative References 1. BAEB “Packet Data Specification”, ANSI/TIA-102.BAEB-A, March 2005. 2. AABB “Trunking Control Channel Formats”, ANSI/TIA-102.AABB-A, July 2005. 3. AABC “Trunking Control Channel Messages”, ANSI/TIA-102.AABC-C, November 2009. 4. AABD “Tr
44、unking Procedures”, TIA-102.AABD-A, December 2008. 5. AABD-1 “Trunking Procedures Addendum”, TIA-102.AABD-A-1, PN-3-3629-RV1-AD1, when approved to be published as TIA-102.AABD-A-1 6. AABF “Link Control Word Formats and Messages”, ANSI/TIA-102.AABF-B, July 2009. 7. TIA102 “Project 25 System and Stand
45、ards Definition”, PN-3-3591-UGRV1, when approved to be published as TIA-102. . TIA-102.AABA-B 3 2.0 Trunking Overview The TIA-102 series documents define interfaces for digital land mobile radio operation. The trunking interface standard supports services such as data, voice, protected data, protect
46、ed voice, flexible group structures, and telephone interconnect. Trunking is the mutual sharing of a finite number of RF channels among a population of radio subscribers. Access control over system resources, ranging from a single station at a single site, to multiple stations at multiple sites, is
47、a key differentiator between trunking and conventional system operation. Trunked systems use FDMA and TDMA channel access methodologies. FDMA can be used for trunking control, voice, and data channels, while TDMA currently can only be used for trunking voice channels. 2.1 User Requirements The Proje
48、ct 25 Statement of Requirements, maintained by the User Needs Subcommittee of the Project 25 Steering Committee, provides the baseline requirements for Project 25 trunking systems. TIA-102 series documents are intended to enable implementation of interoperable functionality identified by the P25 SoR
49、 and a consistent test methodology to verify implementations based on the TIA-102 series of standards. 2.2 Commonality with Conventional Systems Conventional systems and trunked systems have historically used different signaling methods. This historical background changed with Project 25 FDMA standardization. Both the trunked system and the digital conventional system may be represented as single channel, single site configurations, with identical FDMA channel modulation, bit rate, formats, and control messages for various features, including voice, data, status, mess
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