1、 B U I L D I N G G L O B A L C O M M U N I C A T I O N S June 4, 2003 SUBJECT: Standards Proposal No. 3-4626-RV1, Proposed Revision of TIA/EIA-102.BAAC “Project 25 Common Air Interface Reserved Values” (if approved, to be published as TIA-102.BAAC-A) BACKGROUND: The attached material was prepared by
2、 the TIA TR-8.15 Subcommittee on Signaling and Data Transmission, and was approved by the Chairman of the Committee. SP-3-4626-RV1 is herewith submitted to TIA membership and others concerned as a step toward standardization. NOTE: On publication of TIA-102.BAAC-A as an ANSI approved standard, TIA/E
3、IA- 102.BAAC and TIA-102.BAAC-1 will be withdrawn unless comments are received indicating a need to retain them. Such comments must indicate the reason retention should be considered by the committee. Unless comments to consider retention are received, TIA/EIA-102.BAAC and TIA-102.BAAC-1 will be wit
4、hdrawn by the Standards Secretariat of TIA on publication of TIA- 102.BAAC-A. Please use the following format for comments: Company Name - Comment No. Type of Comment - Technical or Editorial Reference - Page No., Clause No., Line Suggested Change - Change From:. To:. Add:, Delete: Rationale for Tec
5、hnical Change COMMENT PERIOD EXPIRES: August 4, 2003 2500 Wilson BoulevardSuite 300Arlington, VA 22201-3834USA+1.703.907.7700FAX +1.703.907.7727The Telecommunications Industry Association represents the communications sector ofPrior to this date, comments may be submitted for consideration as noted
6、on page two of this form. Following the expiration of the comment period, and consideration by the relevant committee, this Proposal will be submitted to the TIA Technical Standards Subcommittee (TSSC) for final approval as to acceptance or rejection of this Standards Proposal. T# 7248Copyright Tele
7、communications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PLEASE FILL OUT AND SIGN THIS FORM AND RETURN IT WITH ANY COMMENTS TO: Billie Zidek-Conner SUBJECT: Standards Proposal No. 3-4626-RV1, Telecomm
8、unications Industry Assoc. Proposed Revision of TIA-102.BAAC “Project 25 - 2500 Wilson Blvd., Suite 300 Common Air Interface Reserved Values” (if Arlington, VA 22201-3834 approved, to be published as TIA-102.BAAC-A) (FAX: 703/907-7728) COMMENT PERIOD EXPIRES: JULY 21, 2003 USER PRODUCER USER/PRODUCE
9、R GENERAL INTEREST Please circle one only to indicate the most accurate description of the relevance of this Standards Proposal to your company. This information is required by ANSI to process your comments. DATE:_ NAME:_ Please Print TEL:_ NAME:_ Signature E-MAIL_ COMPANY:_ _ ADDRESS:_ _-page 2-Cop
10、yright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE This document is a TIA Engineering Standards Proposal, rather than an interim or final Standard. It is published for purposes
11、 of comment and is subject to further review and modification by the TIA Technical Standards Subcommittee (TSSC), which may accept or reject the Standards Proposal. Accordingly, readers of this Standards Proposal are cautioned against relying on information contained therein prior to the adoption of
12、 a final standard. TIA disclaims any liability or responsibility for the consequences of such reliance. Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2003 2500 Wilson Boulevard Arlington, VA 22201 All rights reserved Printed in U.S.A. PRICE: $43.00Copyright Telecommunications Industry Associa
13、tion Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA
14、 STANDARD Project 25 Common Air Interface Reserved Values Version 2.0 SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A 26 February, 2003 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reprodu
15、ction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A i Contents
16、 1. Scope .1 1.1 Conventions.1 1.2 Default Values .1 1.3 Revision History.2 1.4 References 2 2. Values 2 2.1 Network Access Code2 2.2 Link Control Format .3 2.3 Manufacturers ID.3 2.4 Source and Destination ID .3 2.5 Talk Group ID 4 2.6 Message Indicator4 2.7 Key ID4 2.8 Algorithm ID .4 2.9 Service
17、Access Point .5 2.10 Emergency Indicator5 2.11 Data Unit ID .5 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A iv Thi
18、s page intentionally left blank. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A 1 1. Scope This document is a supple
19、ment to the Common Air Interface, reference 1, that lists all of the reserved values for the fields of information. This is intended to be interpreted with the Common Air Interface and is not intended to be understood by itself. 1.1 Conventions The Common Air Interface defines the following fields w
20、ith special reserved values. Name Abbrev. Size (bits) Network Access Code NAC 12 Data Unit ID DUID 4 Link Control Format LCF 8 Manufacturers 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 Some of th
21、ese fields have values that are reserved for future standard definitions. There are also some values that are defined for standard operation in this document. Throughout this document the values that are inserted into the fields are represented as hexadecimal numbers. This is done to make it conveni
22、ent to compare the value in a machine representation. The hexadecimal numbers are represented with a leading $ sign to signify the radix for the number. For some values a familiar form is also given in decimal. The familiar form is used as a displayed value in some applications while the hexadecimal
23、 representation is meant to represent the value within a computer process inside a radio. When a decimal representation is used it is given in the customary format, without a leading $ sign. 1.2 Default Values Many of the fields have default values defined for them. The purpose of a default value is
24、 to define a value that may be safely used in normal operation without explicit programming by the user of the radio equipment. Default values may be programmed at the time of manufacture and used until a particular value is assigned or programmed by the radio user. Copyright Telecommunications Indu
25、stry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A 2 1.3 Revision History January 25, 1993, P25.930125.1.0, contained original values for voice. April 8,
26、 1993, P25.930125.1.1, revised so that this is no longer an appendix to the Common Air Interface. July 12, 1993, P25.930125.1.2, revised to add SAP and ALGID values. December 13, 1993, P25.930125.1.3, revised to add more SAP values and 16-bit talk group IDs. June 2, 1994, final revision for publicat
27、ion. An MFID is assigned for Transcrypt. Version A, February 6, 1995, revised Algorithm IDs and SAP values. Also added definition of the Emergency bit. Version B, June 22, 1995, revised the MFID list to include more manufacturers, published as revision A. Version 1.0, 21 May, 1999, revised to remove
28、 references to analog carrier squelch, and add new access code definitions. Version 1.1, 24 June, 1999, defines NAC codes $F7E and $F7F. Version 1.2, addendum 1, 31 January 2001, defines SNDCP SAP value. Version 2.0, 26 March 2003, defines Data Unit ID values. 1.4 References The following documents
29、contain provisions which, through reference in this text, constitute provisions of this document. At the time of publication, 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 ap
30、plying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of currently valid national standards published by them. 1 Project 25 FDMA Common Air Interface, June 1999, TIA102.BAAA-A. 2 Project 25 DES Encryption Protocol , February 2001, TIA102.AAAA-A. 3 Project
31、25 OTAR Protocol, November 2002, TIA102.AACA-1. 4 Project 25 Packet Data Specification, August 2002, TIA102.BAEB-2. 5 Project 25 Circuit Data Specification, June 2000, TIA102.BAEC. 6 MFID Manufacturers Identification Number Assignment Guide and Procedures, August 1998, see the TIA web page, TR-8.15
32、committee. 7 Project 25 Link Control Word Formats and Messages, December 2001, TSB102.AABF-1. 2. Values 2.1 Network Access Code The default NAC is $293. The value of $F7E is defined to allow a receiver to open upon receipt of any NAC. The value of $F7F is defined to allow a repeater to receive and r
33、etransmit any NAC. All of these values are tabulated below. Standard NAC Values NAC Explanation $293 DEFAULT Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-3-4626-RV1 To be
34、published if approved as TIA-102.BAAC-A 3 $F7E Receiver to open on any NAC $F7F Repeater to receive and retransmit any NAC This document advises implementations not to transmit the NAC values $F7E or $F7F. These values are intended for use in receivers. 2.2 Link Control Format The LCF shown in the C
35、ommon Air Interface document, reference 1, uses four values tabulated below. Other values are also defined for this field in the Link Control Word Formats document, reference 7. Standard LCF Values LCF Meaning $00 Defines the format for Group Calls. The LC contains an Emergency bit, TGID, and a Sour
36、ce ID. $03 Defines the format for Individual Calls. The LC contains a Source ID and a Destination ID. $80 Encrypted LC information, with same contents as $00. $83 Encrypted LC information, with same contents as $03. 2.3 Manufacturers ID The MFID uses a Standard Value of $00 or a Standard Value of $0
37、1 to represent operation in conformance to the standard. Other values are defined in reference 6. 2.4 Source and Destination ID The identifier numbers for individual radio units are placed in the fields for Source ID and Destination ID. Data packets have an analogous field called the Logical Link ID
38、, which also contains the identifier numbers for individual radio units. There is one standardized value that is used to signify no one, i.e., no radio in a system is assigned to this reserved value. There are also standardized values to signify group addresses. These addresses may be used as destin
39、ation addresses for data packets, but never as source addresses unless anonymity is required. The standardized values are given below. Standard Source ID and Destination ID Values Destination ID Source ID Familiar Decimal Meaning $000000 0 No one This value is never assigned to a radio unit $000001
40、- 1 - For general use. $98967F 999 9999 $989680 - 1000 0000 - For talk group use or $FFFFFE 1677 7214 other special purposes. $FFFFFF 1677 7215 Designates Everyone Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking perm
41、itted without license from IHS-,-,-SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A 4 2.5 Talk Group ID The TGID has one reserved value to denote no one just as the source and destination ID. There is also a reserved value to denote everyone in the radio network. There is also a default T
42、GID to be used in cases where no other talk groups are specifically defined. The default value is used in systems which do not intend to provide any significant talk group partitioning. Standard TGID Values TGID Familiar Decimal Meaning $0000 0 No one $0001 1 Default Talk Group $FFFF 65535 Everyone
43、2.6 Message Indicator The MI has only one standardized value, which is used for unencrypted messages. This is the null ($000000.0) value. The null value is never used for encrypted messages. 2.7 Key ID The KID has only one standardized value, which is used for either unencrypted messages, or as a de
44、fault value for encrypted messages. This value is the null ($0000) value. The reader is referred to the DES Encryption Protocol document, reference 2, for further explanation of the operation of KID. 2.8 Algorithm ID The ALGID has a standard value for unencrypted messages, which is $80. This value m
45、ay be used as a default for equipment which is not equipped with encryption. The ALGID also has a standard value to signify the DES algorithm for encryption, as specified in the DES Encryption Protocol document, reference 2. Other ALGID values are defined for Type 1 algorithms. Standard ALGID Values
46、 ALGID # Meaning $00 0 ACCORDION 1.3 $01 1 BATON (Auto Even) $02 2 FIREFLY Type 1 $03 3 MAYFLY Type 1 $04 4 SAVILLE $41 65 BATON (Auto Odd) $80 128 Unencrypted message (no encryption algorithm) $81 129 DES encryption algorithm $82 130 2-key triple DES encryption algorithm $83 131 3-key triple DES en
47、cryption algorithm $84 132 AES encryption algorithm Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-3-4626-RV1 To be published if approved as TIA-102.BAAC-A 5 2.9 Service Acc
48、ess Point The standard SAP values are used by the data system to distinguish services for different data packets. Standard SAP Values SAP # Meaning $00 0 Unencrypted User Data $01 1 Encrypted User Data $02 2 Circuit Data $03 3 Circuit Data Control $04 4 Packet Data $05 5 Address Resolution Protocol (ARP) $06 6 SNDCP Packet Data Control $1
