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1、 TIA DOCUMENT Project 25 Interoperability Test Procedures Over-the-Air Rekeying (OTAR) TIA-102.CABB AUGUST 2003 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Association represents the communications sector of Copyright Telecommunications Industry Association Provided by IH
2、S under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating m
3、isunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Publications shall not in any respect prec
4、lude any member or non-member of TIA from manufacturing or selling products not conforming to such Publications. Neither shall the existence of such Documents preclude their voluntary use by non-TIA members, either domestically or internationally. TIA DOCUMENTS TIA Documents contain information deem
5、ed to be of technical value to the industry, and are published at the request of the originating Committee without necessarily following the rigorous public review and resolution of comments which is a procedural part of the development of a American National Standard (ANS). Further details of the d
6、evelopment process are available in the TIA Engineering Manual, located at http:/www.tiaonline.org/standards/sfg/engineering_manual.cfm TIA Documents shall be reviewed on a five year cycle by the formulating Committee and a decision made on whether to reaffirm, revise, withdraw, or proceed to develo
7、p an American National Standard on this subject. Suggestions for revision should be directed to: Standards therefore, interoperability testing of all possible combinations of settings is not performed. The functional capability, OTAR, as tested in this document is considered a standard option - mean
8、ing that, while a manufacturer is not required to provide the function, if they do provide the function, it must be compliant with the TIA102 standards; therefore, because a functionality is listed within the requirements for interoperability testing, it does not imply that it is a required service.
9、 Only those services that are provided by the device and/or services that are mandatory need be tested. The reader is referred to pp38-40 of the System and Standards Definition document 1 (TSB102-A) for further discussion. In a similar light, there are certain services for which the implementation m
10、ay depend upon the needs of the user and the choices made by the manufacturer. However, whatever the choice for implementation, it must meet the requirements as defined in the TIA102 standards. 1.4 Revision History Version Date Document No. Comments A. June 22, 2000 P25.XXX Initial version B. August
11、 2001 P25010801.1.0 Approved by P25 Steering Committee C. February 2002 PN-3-0060 Ballot D. August 2002 PN-3-0060 Ballot Resolution E. December 4, 2002 PN-3-0060 Ballot Resolution v2 F. March 24, 2003 PN-3-0060 Ballot Resolution v3 G. March 27, 2003 PN-3-0060 Ballot Resolution v4 1.5 References The
12、following documents contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate t
13、he possibility of applying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of currently valid national standards published by them. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, Us
14、er=Wing, Bernie Not for Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-102.CABB 3 1 TSB102-A, APCO Project 25 System and Standards Definition, Nov. 1995. 2 TSB102.BAAD, APCO Project 25 Common Air Interface Operational Description for Convent
15、ional Channels, Oct. 1994. 3 ANSI/TIA/EIA 102.BAAA, Project 25 FDMA Common Air Interface, May 1998. 4 ANSI/TIA/EIA-102.BAAC, Project 25 Common Air Interface Reserved Values, May 2000. 5 TSB-102.AABF, APCO Project 25 Link Control Word Formats and Messages, May 1996. 6 TIA/EIA-102.AACA, Project 25 Dig
16、ital Radio Over-the-Air-Rekeying (OTAR) Protocol, April 2001. 7 TIA/EIA-102.AACB, Project 25 - Over-The-Air-Rekeying (OTAR) Operational Description, November 2002. 8 TIA/EIA-102.AACC, Conformance Tests for the Project 25 Over-The-Air- Rekeying (OTAR) Protocol, July 2002. 9 P25.940811.2.3, Lock Down
17、Overview, Sections 3 and 4, Jan. 20, 1998. 10 TSB-88A Wireless Communications Systems Performance in Noise and Interference-Limited Situations Recommended Methods for Technology- Independent Modeling, Simulation, and Verification, Jan. 1999. 11 EIA-603, Land Mobile FM or PM Communications Equipment
18、Measurement and Performance Standards, Feb 1993. 12 ANSI/TIA/EIA/IS-102.AAAA-A, DES Encryption Protocol, February 2000. 13 TIA/EIA-102.AAAD, Project 25 Block Encryption Protocol, July 2002. 14 TSB-102.CABA, Interoperability Test Procedures, Conventional Voice, February 2002. 15 Draft to be published
19、 as TIA/EIA 102.AACA-A. Addendum A, Key Management Security Requirements for Type 3 Block Encryption Algorithms, TBD. 16 Draft to be published TSB-102.CABx, Interoperability Test Procedures, Trunked Voice, TBD. Normative Informative 1.6 Definitions Algorithm ID An 8-bit identifier for an encryption
20、algorithm. Base Station A land station in the land mobile services. The base station is comprised of a base radio and optionally, a base audio (or base console). Repeater capabilities are also optional. Base Radio The base radio functional group includes only the functions of modulation and demodula
21、tion of the radio frequency energy. Elements within the BR include the power amplifier (PA), RF front end, IF selectivity, and end-IF detection device. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
22、 Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-102.CABB 4 Base Audio The base radio audio and routing functional group includes the functions of frequency, level shaping and signal processing associated with the transmitted and received sig
23、nals coupled to the BR. Channel A channel consists of the transmit frequency, receive frequency and associated radio parameters (scan mode, squelch, etc.). The channel may optionally include an algorithm ID and key ID to be used when the channel is in use. (Transmit and receive frequencies only appl
24、ies to conventional systems.) Control Station Fixed subscriber that interfaces with the user through a wireline audio connection and has only simplex or half- duplex operation. At the CAI, the control station operates identical to a mobile unit. Cryptographic Variable A parameter used in conjunction
25、 with a cryptographic algorithm that is used to perform a cryptographic transformation. “Key“ may be used for short. Crypto Group A grouping of one or more keysets consisting of the same type of keys. Only one keyset within a Crypto Group is active at any given time. Crypto Groups help facilitate ke
26、y management when the MR contains multiple algorithms or when keysets have different crypto periods. Cryptoperiod The time span during which an encryption key remains valid for use. Destination ID Identifier used to designate the individual address of the unit to receive an individual call. Fixed Tr
27、ansceiver A radio unit which can operate as a simplex, half-duplex, or full-duplex base station, or a full-duplex repeater. Additionally, a transceiver may have a wireline input for: console audio, local audio, telephony audio, or audio routed from another fixed transceiver Full Duplex Operation Ope
28、rating method in which transmission is possible simultaneously, in both directions of a telecommunication channel. The inbound signal is a different frequency from the outbound signal. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111
29、111001, User=Wing, Bernie Not for Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-102.CABB 5 Group A group refers to any logical grouping of radio equipment, the membership of which is determined based on shared encryption-related attributes.
30、 For example, a group may be a collection of MRs that hold one or more identical keysets (i.e., TEKs). A group may be managed as a single subscriber by the KMF. A group may be a subset of a Key Management Group. Group Service A key management service which is provided to a Key Management Group. Half
31、-duplex Operation Operating method in which communication between two terminals occurs in either direction, but in only one direction at a time. The inbound signal is a different frequency from the outbound signal. Hang-time Period of time for which the repeater will transmit the idle status symbol
32、prior to base station dekey. Individual Call A transmission addressed to a specific subscriber unit whose address is designated by the destination ID. Key A parameter used in conjunction with a cryptographic algorithm that is used to perform a cryptographic transformation. Also called a cryptographi
33、c variable. Key Encryption Key A key only used to encrypt other keys, a KEK. Key ID The Key ID is a 16-bit identifier for an encryption key. The combination of a Key ID and an Algorithm ID will uniquely identify a key within the KMF or subscriber units. Key Management Facility A Key Management Facil
34、ity is responsible for providing Over-The-Air-Rekeying and related management services to the subscriber units. Key Management Group A Key Management Group is two or more MRs that respond to the same Radio Set Identifier. The members of a Key Management Group have one or more keysets in common and a
35、re managed as a single subscriber by the KMF. Keyset A keyset is a group of keys that will be used within a subscriber unit for the same algorithm and cryptoperiod. This allows the group of keys to be managed as a single Copyright Telecommunications Industry Association Provided by IHS under license
36、 with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-102.CABB 6 entity (i.e., they can be rekeyed, updated and deleted at the same time with a single command). Manufacturer ID (
37、MFID) An eight-BIT field identifying the manufacturer of the radio. The value $00 is the standard value used to denote conformance to the standard. A value other than the standard value designates a proprietary call for which the standards need not be adhered to. Mobile Radio Mobile radio is a gener
38、al term that applies to any type of mobile radio; however, when the term MR is used in this document it refers to MRs which are compliant with Project 25 standards. Monitor Squelch Enables the receiver to unmute on any recognizable voice signal. Network Access Code (NAC) A network address which allo
39、ws multiple repeaters to occupy the same channel and remain separate and distinct. Normal Squelch Enables the receiver to unmute on any voice signal that has the correct network access code. Procedure A Procedure is a sequence of key management messages provided in succession. Rekey Rekey is the pro
40、cess of preparing, sending (if necessary) and loading of encryption keys into a unit for use in the current or future cryptoperiod. The process may be done over the air or by a direct physical connection to a key loader. Response Kind The response kind field of a message determines the kind of respo
41、nse that the message is required to have. A message many have no response, a response after a delay or an immediate response. Selective Squelch Enables the radio receiver to unmute only upon receiving a transmission with a NAC equal to the receivers NAC and specifically addressed to the unit, either
42、 through the proper destination ID for an individual call, or a proper talk-group ID for a talk-group call. Simplex Operation Operating method in which transmission is made possible alternately in each direction of a communication Copyright Telecommunications Industry Association Provided by IHS und
43、er license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-102.CABB 7 channel, for example by means of manual control. The inbound signal is the same frequency as the outbou
44、nd signal. Source ID Identifier used to designate the unit address of a radio originating a call. Subscriber A radio unit which can terminate voice or data messages in a system. Talkaround Communication directly between two subscribers without the use of a repeater or trunking device. Talk-group ID
45、16-BIT Identifier used to specify a talk-group Talk-group Call A transmission addressed to a group of subscriber units whose address is designated by the talk-group ID. System Wide Talk-group Call A transmission addressed to all subscribers in the system using the all-call talkgroup ID ($FFFF). Traf
46、fic Encryption Key A key used to encrypt voice or data traffic, a TEK. Update A cryptographic process which deterministically but irreversibly modifies a key. Vocoder A type of voice coder, usually consisting of a speech analyzer and a speech synthesizer which convert analog speech into digital sign
47、als for transmission and digital signals back into artificial speech sounds for reception. 1.7 Abbreviations ACK Acknowledgement ALGID Algorithm ID to indicate the type of encryption algorithm ARQ Automatic Repeat Request bps bits per second BR Base Radio C4FM Compatible 4-level FM (version of QPSK-
48、c modulation) CAI Common Air Interface CBC Cipher Block Chaining CDCSS Continuous-Digital-Coded-Squelch-System CFB Cipher Feedback CON Console CP Cryptoperiod CQPSK Compatible QPSK (version of QPSK-c modulation) Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/28/2007 22:05:25 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-102.CABB 8 CRC Cyclic Redu