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    TIA TSB-102 BBAA-2010 Project 25 Two-Slot TDMA Overview《项目25 双槽TDMA概述》.pdf

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    TIA TSB-102 BBAA-2010 Project 25 Two-Slot TDMA Overview《项目25 双槽TDMA概述》.pdf

    1、 TSB-102.BBAA March 2010 Project 25 Two-Slot TDMA Overview NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assistin

    2、g the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Standards and Publications shall not in any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Standards and P

    3、ublications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA members, either domestically or internationally. Standards and Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By suc

    4、h action, TIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties 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 resp

    5、onsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-0349, formulated under the cognizance of the TIA, TR-8 Mobile and Personal Private Radio Standards.

    6、 TR-8.12 Subcommittee onTwo Slot TDMA). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIO

    7、NS or call IHS USA and Canada (1-800-525-7052 ) International (303-790-0600) or search online at http:/www.tiaonline.org/standards/catalog/ All rights reserved Printed in U.S.A. NOTICE OF COPYRIGHT This document is copyrighted by the TIA. Reproduction of these documents either in hard copy or soft c

    8、opy (including posting on the web) is prohibited without copyright permission. For copyright permission to reproduce portions of this document, please contact TIA Standards Department or go to the TIA website (www.tiaonline.org) for details on how to request permission. Details are located at: http:

    9、/www.tiaonline.org/standards/catalog/info.cfm#copyright OR Telecommunications Industry Association Standards (b) there is no assurance that the Document will be approved by any Committee of TIA or any other body in its present or any other form; (c) the Document may be amended, modified or changed i

    10、n the standards development or any editing process. The use or practice of contents of this Document may involve the use of intellectual property rights (“IPR”), including pending or issued patents, or copyrights, owned by one or more parties. TIA makes no search or investigation for IPR. When IPR c

    11、onsisting of patents and published pending patent applications are claimed and called to TIAs attention, a statement from the holder thereof is requested, all in accordance with the Manual. TIA takes no position with reference to, and disclaims any obligation to investigate or inquire into, the scop

    12、e or validity of any claims of IPR. TIA will neither be a party to discussions of any licensing terms or conditions, which are instead left to the parties involved, nor will TIA opine or judge whether proposed licensing terms or conditions are reasonable or non-discriminatory. TIA does not warrant o

    13、r represent that procedures or practices suggested or provided in the Manual have been complied with as respects the Document or its contents. If the Document contains one or more Normative References to a document published by another organization (“other SSO”) engaged in the formulation, developme

    14、nt or publication of standards (whether designated as a standard, specification, recommendation or otherwise), whether such reference consists of mandatory, alternate or optional elements (as defined in the TIA Engineering Manual, 4thedition) then (i) TIA disclaims any duty or obligation to search o

    15、r investigate the records of any other SSO for IPR or letters of assurance relating to any such Normative Reference; (ii) TIAs policy of encouragement of voluntary disclosure (see Engineering Manual Section 6.5.1) of Essential Patent(s) and published pending patent applications shall apply; and (iii

    16、) Information as to claims of IPR in the records or publications of the other SSO shall not constitute identification to TIA of a claim of Essential Patent(s) or published pending patent applications. TIA does not enforce or monitor compliance with the contents of the Document. TIA does not certify,

    17、 inspect, test or otherwise investigate products, designs or services or any claims of compliance with the contents of the Document. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROP

    18、RIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NONINFRINGEMENT OF ANY THIRD PARTYS INTELLECTUAL PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE

    19、WITH ANY APPLICABLE STATUTE, RULE OR REGULATION, OR THE SAFETY OR HEALTH EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO

    20、 ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NE

    21、GLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TSB-102.BBAA Foreword This document

    22、has been submitted to PROJECT 25 by the Telecommunications Industry Association (TIA), as provided for in a Memorandum of Understanding (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

    23、TIA shall provide technical assistance in the development of documentation for the Standard. This document has been developed with inputs from the TIA Project 25 Interface Committee (APIC), the APIC TDMA Task Group, TR8.12, and TIA industry members. This document is being published because it is fel

    24、t that there is a need for Project 25 to set a standard for spectrum efficiency equivalent to 6.25 kHz as stated by the FCC. Technology choices for the TDMA Two-Slot Air Interface are based on Project 25 Steering Committee decisions regarding the vocoder, modulations, and overall bit rate made at th

    25、eir meeting of 27-April-2007. This document defines an overview of Two-Slot TDMA in a P25 system. iiTSB-102.BBAA 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 publ

    26、ication 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, we believe, filed statements of willingness to grant licenses under those rights on reasonable and nondiscriminatory ter

    27、ms 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 rights policy: No patents have been identified. TIA shall not be responsible for identifying patents for which licenses may

    28、 be required by this document or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention.iiiTSB-102.BBAA TABLE OF CONTENTS 1. Objectives of the Project 25 Two-Slot TDMA Standard 1 1.1 Abbreviations and Acronyms . 2 1.2 Revision History . 3 2. Scop

    29、e of the P25 Two-Slot TDMA Standard . 4 3. Informative References. 5 4. Documentation Suite for the P25 Phase 2 Two-Slot TDMA Standard 6 4.1 Project 25 Vocoder Description 8 4.2 Two-Slot TDMA Common Air Interface . 8 4.3 Additions to Phase 1 Trunking for Phase 2 9 4.4 Additions to Phase 1 Encryption

    30、 for Phase 2 10 4.5 Two-Slot TDMA CAI Measurement Methods. 10 4.6 Two-Slot TDMA CAI Performance Recommendations. 10 4.7 Two-Slot TDMA CAI Conformance Tests. 10 4.8 Two-Slot TDMA CAI Interoperability Tests . 10 4.9 Two-Slot TDMA Recommended Compliance Assessment Tests 11 4.10 Project 25 ISSI Messages

    31、 and Procedures 11 5. General Description of the P25 Two-Slot TDMA CAI 12 6. Bit Rate and Modulation for the P25 Two-Slot TDMA CAI . 13 7. Vocoder. 14 8. Trunking Control 15 9. Encryption. 16 10. Phase 1 Interoperability, Compatibility, and Migration . 17 11. Options Associated with the P25 Two-Slot

    32、 TDMA Standard 20 TABLE OF FIGURES Figure 5-1 Representative P25 Phase 2 System Model Illustrating Support of the New Phase 2 Two-Slot TDMA CAI (Um2) and the Phase 1 12.5 kHz FDMA CAI (Um) . 12 TABLE OF TABLES Table 4-1 P25 Two-Slot TDMA Standards Summary. 7 ivTSB-102.BBAA 1. Objectives of the Proje

    33、ct 25 Two-Slot TDMA Standard The objectives of the Project 25 Standard that were expressed in the APCO Project 25 System and Standards Definition bulletin, TSB-102-A 1, are as follows. Obtain maximum radio spectrum efficiency Ensure competition in system life cycle procurement Allow effective, effic

    34、ient and reliable intra-agency and inter-agency communications Provide user friendly equipment The APCO Project 25 Statement of Requirements 2 defines a key goal to achieve spectrum efficiency in Phase 2 equivalent to four-to-one spectrum utilization in a 25 kHz channel. The Project 25 (P25) Two-Slo

    35、t TDMA Standard for Phase 2 doubles the spectrum efficiency of the Phase 1 Standard for 12.5 kHz operation to contribute to the first objective of the Project 25 standard suite and a key goal of the Statement of Requirements. The Two-Slot TDMA Standard also maintains interoperability and compatibili

    36、ty with the Phase 1 Standard, including support for the Inter-RF Sub-System Interface (ISSI). The P25 Phase 2 Two-Slot TDMA Standard is based on the P25 Phase 2 12.5 kHz TDMA (i.e., Two-Slot TDMA) requirements defined in the P25 Statement of Requirements to preserve the achievement of the other thre

    37、e objectives. Section 2 provides an overview of the scope of the P25 Two-Slot TDMA Standard. Section 3 identifies the informative references cited in this document. Section 4 gives a brief description of the suite of standards associated with the P25 Two-Slot TDMA Standard. Section 5 provides a gene

    38、ral description of P25 Two-Slot TDMA Common Air Interface (CAI). Section 6 introduces the bit rate and modulation for the P25 Two-Slot TDMA CAI. Section 7 introduces the P25 vocoder associated with the P25 Two-Slot TDMA Standard. Section 8 introduces trunking control aspects of the P25 Two-Slot Stan

    39、dard. Section 9 introduces encryption and security aspects of the P25 Two-Slot Standard. Section 10 introduces aspects of interoperability, compatibility, and migration addressed by the P25 Two-Slot Standard. Section 11 introduces options associated with the P25 Two-Slot Standard. 1TSB-102.BBAA 1.1

    40、Abbreviations and Acronyms Abbreviations and acronyms used in this document include the following. 6.25e Equivalent to 6.25 kHz channel efficiency, i.e.,efficiency equivalent to one voice per 6.25 kHz of channel bandwidth A Mobile Data Terminal Interface ALGID Algorithm Identifier for an encryption

    41、algorithm APCO Association of Public-Safety Communications Officials C4FM Compatible 4 Level Frequency Modulation CAI Common Air Interface CAP Project 25 Compliance Assessment Program CCH Trunking Control Channel DCH Data channel EcConsole Interface EdData Host Network Interface EfFixed Station Conv

    42、entional Interface EnNetwork Management Interface ESS Encryption Synchronization Signaling, concatenates MI, ALGID, KID EtPSTN Interface FDMA Frequency Division Multiple Access G ISSI, Inter-RF SubSystem Interface H-CPM Harmonized Continuous Phase Modulation H-D8PSK Harmonized Differential 8 Phase S

    43、hift Keying, a proposed future modulation for TDMA for improved simulcast delay spread H-DQPSK Harmonized Differential Quadrature Phase Shift Keying ID Identifier ISCH Inter-slot Signaling Channel ISSI Inter-RF SubSystem Interface kb/s Kilobits per second kHz Kilohertz KID Key Identifier for an encr

    44、yption key LCW Link Control Word for trunking control MAC Media Access Control sublayer MI Message Indicator for encryption synchronization ms Milliseconds OTAR Over The Air Rekeying P25 Project 25, usually referring to the Project 25 standards P25 Phase 1 Refers in part to Project 25 FDMA and CQPSK

    45、 standards 2 P25 Phase 2 Refers in part to Project 25 TDMA standards 2 PDU Protocol Data Unit, a term used frequently in the MAC layer PHY Physical layer PSTN Public Switched Telephone Network RF Radio Frequency RTP Real-time Transport Protocol 2TSB-102.BBAA TCH Traffic channel TDMA Time Division Mu

    46、ltiple Access TIA Telecommunications Industry Association TSB Technical Systems Bulletin of the TIA TSBK Trunking Signaling Block for trunking control UmP25 Phase 1 FDMA Common Air Interface Um2P25 Phase 2 Two-Slot TDMA Common Air Interface 1.2 Revision History Version 0.4, 29-September-2008, revise

    47、d using comments from TR8.12, document 08-07-011 Version 0.5, 11-November-2008, revised using comments from TR8.12, documents 08-07-011-R1 through R3. Version 0.6, 20-November-2008, revised using comments from TR8.12, document 08-07-011-R4 Version 0.7, 2-December-2008, revised using comments from TR

    48、8.12, document 08-07-011-R5 Version 0.8, 10-December-2008, revised using comments from TR8.12, document 08-07-011-R6 APCO Project 25 System and Standards Definition; November 1995 2 APCO Project 25 Statement of Requirements; October 17, 2008 3 TIA-102.BABA-1; Project 25 Half Rate Vocoder Annex 4 TIA

    49、-102.AAAD; Project 25 Block Encryption Protocol; with Addendum for encryption protocol for a half rate vocoder 5 TIA-102.AABC-B-4; Project 25 Trunking Control Channel Messages Addendum for TDMA 6 TSB-102.BABE; Project 25 Vocoder Evaluation Mean Opinion Score Test; 2007 7 TIA-102.AACA; Project 25 Digital Over the Air Rekeying Protocol; 2003 8 TIA-102.BACA; Project 25 Inter RF Subsystem Interface Messages and Procedures for Voice Services; including addenda 1, 2, and 3; 2007 9 TIA-102.AABD; Project 25 Trunking Procedures; 2007 10 TIA-102.AAB


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