1、 TIA-102.BAAC-D (Revision of TIA-102.BAAC-C) June 2017Project 25 Common Air Interface Reserved Values ANSI/TIA-102.BAAC-D-2017 APPROVED: JUNE 19, 2017 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacture
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23、S. TIA-102.BAAC-D i Foreword (This foreword is not part of this document.) This document has been created in response to a request by the Project 25 Steering Committee as provided for in a Memorandum of Understanding (MOU) dated April 1992 and amended December 1993. The MOU states that the Project 2
24、5 Steering Committee shall devise a Common System Standard for digital public safety communications (the Standard) commonly referred to as Project 25 or P25, and that TIA, as agreed to by the membership of the appropriate TIA Engineering Committee, will provide technical assistance in the developmen
25、t of documentation for the Standard. If the abbreviation “P25” or the wording “Project 25” appears on the cover sheet of this document when published that indicates the Project 25 Steering Committee has adopted this document as part of the Standard. The appearance of the abbreviation “P25” or the wo
26、rding “Project 25” on the cover sheet of this document or in the title of any document referenced herein should not be interpreted as limiting the applicability of the information contained in any document to “P25” or “Project 25” implementations exclusively. This document was developed by the TIA T
27、R-8.15 Common Air Interface Subcommittee and provides a specification of the Common Air Interface Reserved Values for TIA-102 Land Mobile Radio systems. The 5thedition (Revision D) of this document revised TIA-102.BAAC-C to address errata comments and align the content with current TR-8 practices. T
28、his document cancels and replaces TIA-102.BAAC-C. There are no annexes in this document. TIA does not evaluate, test, verify or investigate the information, accuracy, soundness, or credibility of the contents of the Document. In Publishing the Document, TIA disclaims any undertaking to perform any d
29、uty owed to or for anyone. Some aspects of the specifications contained in this document may not have been fully operationally tested; however, a great deal of time and good faith effort has been invested in the preparation of this document to ensure the accuracy of the information it contains. TIA-
30、102.BAAC-D ii 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 respect to the validity of those claims or any
31、patent rights in connection therewith. The patent holders so far identified have, we 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
32、 patents have been identified in accordance with the TIA intellectual property rights 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
33、 patents that are brought to its attention. TIA-102.BAAC-D iii Table of Contents 1. Introduction . 1 1.1 Scope . 1 1.2 References . 1 1.2.1 Normative References 1 1.2.2 Informative References 2 1.3 Acronyms and Abbreviations 2 1.4 Definitions . 2 1.5 Conventions . 3 1.5.1 Symbols 3 1.5.2 Default Val
34、ues 3 2. Values 4 2.1 Network Access Code 4 2.2 Link Control Format 4 2.3 Manufacturers ID . 4 2.4 Source and Destination ID 5 2.5 Talk Group ID . 5 2.6 Message Indicator 6 2.7 Key ID . 6 2.8 Algorithm ID 6 2.9 Service Access Point 7 2.10 Emergency Indicator . 7 2.11 Data Unit ID 8 List of Tables Ta
35、ble 1 Fields with Reserved Values . 1 Table 2 Standard NAC Values . 4 Table 3 Standard LCF Values 4 Table 4 Standard Source and Destination ID Values . 5 Table 5 Standard TGID Values 6 Table 6 Standard ALGID Values 6 Table 7 Standard SAP Values 7 Table 8 Emergency Indicator Values 7 Table 9 DUID Val
36、ues 8 TIA-102.BAAC-D iv Revision History Version Date Description Interim Standard 06/02/1994 Initial release of Common Air Interface Reserved Values document Original 04/15/2000 Added Algorithm ID, Service Access Point, and Talk Group ID values to the document; defined Network Access Codes $F7E and
37、 $F7F; defined Emergency Indicator Revision A 12/18/2003 This revision add a Service Access Point value for Sub-Network Dependent Convergence Protocol and defined Data Unit ID values Revision B 05/08/2009 This revision added Service Access Point values for Location Services and Conventional Packet D
38、ata Registration, was modified to specify 16-bit Talk Group ID to 24-bit Conventional Talk Group ID mapping for Message Update and Status Update messages, and added URL for informational reference to the MFID Guide and Assignments Revision C 04/08/2011 This revision modified the Algorithm ID values
39、to provide separate values for 128-bit AES and 256-bit AES Revision D 06/01/2017 This revision addresses errata comments and aligns the document with current TR-8 practices TIA-102.BAAC-D 1 1. Introduction This document is a supplement to the FDMA Common Air Interface 1 and the Two Slot TDMA Common
40、Air Interface 4 that lists the reserved values for information fields. 1.1 Scope The Common Air Interface defines the fields listed in Table 1 below with special reserved values. Table 1 Fields with Reserved Values Name Acronym Size (bits) Network Access Code NAC 12 Link Control Format LCF 8 Manufac
41、turers ID MFID 8 Source ID 24 Destination ID 24 Talk Group ID TGID 16 Message Indicator MI 72 Key ID KID 16 Algorithm ID ALGID 8 Service Access Point SAP 6 Emergency Indicator E 1 Data Unit ID DUID 4 Some of these fields have values that are reserved for future standard definitions. There are also s
42、ome values that are defined for standard operation. 1.2 References The appearance of “Project 25” in references below indicates the TIA document has been adopted by the Project 25 Steering Committee as part of its Project 25 standard, i.e. “the Standard.” 1.2.1 Normative References The following doc
43、uments contain provisions that, through reference in this text, constitute provisions of this document. At the time of publication, the editions indicated were valid. All documents are subject to revision, and parties to agreements based on this document are encouraged to investigate the possibility
44、 of applying the most recent editions of the documents indicated below. ANSI and TIA maintain registers of currently valid national standards published by them. 1 TIA-102.BAAA-B, Project 25 FDMA Common Air Interface, ANSI/TIA, June 2017 2 TIA-102.AABC-D, Project 25 Trunking Control Channel Messages,
45、 ANSI/TIA, April 2015 TIA-102.BAAC-D 2 1.2.2 Informative References 3 TIA-102.AABF-D, Project 25 Link Control Word Formats and Messages, ANSI/TIA, April 2015 4 TSB-102.BBAA, Project 25 Two-Slot TDMA Overview, TIA, March 2010 5 TSB-102-C, Project 25 TIA-102 Documentation Suite Overview, TIA, March 20
46、16 6 MFID Assignments, TIA TR-8.15 Subcommittee, January 2016 7 ALGID Value Assignment Guide, TIA TR-8.15 Subcommittee, April 2015 1.3 Acronyms and Abbreviations AES Advanced Encryption Standard ALGID Algorithm ID ANSI American National Standards Institute ARP Address Resolution Protocol DES Data En
47、cryption Standard DUID Data Unit ID E Emergency Indicator FDMA Frequency Division Multiple Access KID Key Identifier LC Link Control LCF Link Control Format MFID Manufacturers ID MI Message Indicator NAC Network Access Code SAP Service Access Point SNDCP Sub-Network Dependent Convergence Protocol SU
48、 Subscriber Unit TDMA Time Division Multiple Access TGID Talk Group ID TIA Telecommunications Industry Association 1.4 Definitions SU See definition in 5 TIA-102.BAAC-D 3 1.5 Conventions The following conventions are utilized in this document. 1.5.1 Symbols If a number is preceded by a “%“, the numb
49、er is interpreted as a binary representation with the appropriate number of symbols. If a number is preceded by a “$“, the number is interpreted as a hexadecimal representation with the appropriate number of symbols. If a number is presented with neither a “%“ or “$“ preceding it, the number is considered as a decimal representation with the appropriate number of symbols. Representative examples follow: %1010 is 4 symbol binary for decimal 10 $0A is 2 symbol hexadecimal for decimal 10 15 is decimal 15 1.5.2 Default Values Some of the f
