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23、C-A Foreword (This foreword is not part of this bulletin.) This document has been submitted to APCO/NASTD/FED by the Telecommunications Industry Association (TIA), as provided for in a Memorandum of Understanding (MOU) dated December 1993. That MOU provides that APCO/NASTD/FED will devise a Common S
24、ystem 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 inputs from the APCO/TIA Project 25 Interface Committee (APIC), the APIC Compliance Asse
25、ssment Process and Procedures Task Group, 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 Radio Service. This document describes a subset of tests appropriate for c
26、onsideration by the P25 Compliance Assessment Program Governance Board for inclusion in the Compliance Assessment Program testing associated with Transceiver Performance for a Conventional Mode Fixed Station transceiver. As other documents associated with compliance assessment are developed, this do
27、cument will be subject to change. The P25 Compliance Assessment Program uses a subset of published standard tests to “assess” compliance and is not intended to imply an exhaustive standard compliance verification. Standardized Measurement Methods and Performance Recommendations for the tests identif
28、ied here can be found in the normative references to this document. TSB-102.CBBC-A 1 Table of Contents 1 INTRODUCTION 2 1.1 Scope 2 1.2 Revision History 3 1.3 References 3 2 TESTS 4 List of Tables Table 1-1 Revision History 3 Table 2-1 Conventional Mode Fixed Station Receiver Tests 4 Table 2-2 Conve
29、ntional Mode Fixed Station Transmitter Tests 4 TSB-102.CBBC-A 2 1 Introduction The purpose of this Telecommunications Systems Bulletin is to identify the subset of tests appropriate for consideration by the P25 Compliance Assessment Program Governance Board for inclusion in the P25 Compliance Assess
30、ment Program testing of Performance for a Conventional Mode Fixed Station transceiver. The P25 Compliance Assessment Program intends to demonstrate that the equipment from different manufacturers will interoperate with respect to P25 defined features, services and interfaces. The P25 Compliance Asse
31、ssment Program uses a subset of published standard tests to “assess” compliance and is not intended to imply an exhaustive standard compliance verification. The full set of Transceiver Measurement Methods and Performance Recommendations published by TIA for P25 may be found in references 1 and 2. Th
32、is document does not substitute or override any of the tests in reference 1 or 2. This document identifies a subset of the full set of tests in references 1 and 2 appropriate for P25 Compliance Assessment performance testing for a base station transceiver operating in the Conventional mode. This doc
33、ument was drafted and reviewed within the APCO/TIA Project 25 Interface Committee (APIC), Compliance Assessment Process and Procedures Task Group (CAPPTG), and represents the consensus achieved within the CAPPTG once the comment review period was concluded. The draft was subsequently updated to refl
34、ect the CAPPTG agreements in preparation for publication. 1.1 Scope This Bulletin identifies the tests appropriate for consideration by the P25 Compliance Assessment Program Governance Board for Compliance Assessment testing in the area of Performance of a Conventional Mode Fixed Station transceiver
35、. These tests were deemed appropriate by the industry and user members participating in the work of the Compliance Assessment Process and Procedures Task Group (CAPPTG). The CAPPTG includes TIA members and representatives of Federal, State and Local Public Safety agencies and organizations. This gro
36、up, being familiar with the relevant published standards, available P25 equipment and test equipment and the general intentions of the P25 Compliance Assessment Program, reviewed all tests and performance recommendations described in references 1 and 2. The P25 Compliance Assessment Program confirms
37、 that the equipment of different manufacturers will interoperate with respect to the P25 defined features, services and interfaces. P25 Compliance Assessment testing of the Common Air Interface is expected to eventually include; Performance Tests ensuring the Common Air Interface endpoints are legit
38、imate P25 devices for Trunking mode operation, Conventional mode operation, or both. TSB-102.CBBC-A 3 Conformance Tests ensuring the Common Air Interface endpoints exchange the proper messages under the proper circumstances for Trunking mode operation, Conventional mode operation, or both. Interoper
39、ability Tests ensuring that Common Air Interface endpoints from different manufacturers do functionally interoperate for Trunking mode operation, Conventional mode operation, or both. In determining the tests appropriate for P25 Compliance Assessment Program testing in this area, the group considere
40、d whether tests in references 1 and 2 were important for achieving interoperability between equipment of different manufacturers versus tests important for product design and/or certification. In general, tests that were determined to be more oriented towards product design and/or certification (suc
41、h as but not limited to FCC certification) were deemed unnecessary for inclusion in this list. The resulting list therefore represents tests that are most important for or most likely to impact interoperability between manufacturers building to the same set of published standard documents. 1.2 Revis
42、ion History Version Date Description First Edition February, 2009 Approved for publication. Second Edition May, 2015 Approved for publication. Table 1-1 Revision History 1.3 References 1.3.1 Normative References 1 TIA-102.CAAA-D C4FM/CQPSK Transceiver Measurement Methods 2 TIA-102.CAAB-D C4FM/CQPSK
43、Transceiver Performance Recommendations TSB-102.CBBC-A 4 2 Tests The following tables are derived from references 1 and 2. These tables define the subset of tests determined appropriate for demonstrating compliance as part of the P25 Compliance Assessment Program. Each test is listed referencing its
44、 corresponding method of measurement from 1 and its corresponding performance recommendation from 2. Conventional Station Receiver Tests Method of Measurement 1 Performance Recommendation 2 Reference sensitivity 2.1.4 3.1.4 Faded Reference Sensitivity 2.1.5 3.1.5 Adjacent Channel Rejection 2.1.7 3.1
45、.7 Co-Channel Rejection 2.1.8 3.1.8 Spurious Response Rejection 2.1.9 3.1.9 Intermodulation Rejection 2.1.10 3.1.10 Signal Displacement Bandwidth 2.1.11 3.1.11 Late Entry Unsquelch Delay1 2.1.17 3.1.17 Receiver Throughput Delay1 2.1.18 3.1.18 Table 2-1 Conventional Mode Fixed Station Receiver Tests
46、1These tests apply to fixed stations which provide an audio (analog) output. Conventional Station Transmitter Tests Method of Measurement 1 Performance Recommendation 2 Unwanted Emissions: Adjacent Channel Power Ratio 2.2.8 3.2.8 Transmitter Throughput Delay2 2.2.14 3.2.14 Frequency Deviation for C4
47、FM 2.2.15 3.2.15 Modulation Fidelity 2.2.16 3.2.16 Transient Frequency Behavior 2.2.18 3.2.18 Table 2-2 Conventional Mode Fixed Station Transmitter Tests 2Applies to fixed stations which provide an audio (analog) input. THE TELECOMMUNICATIONS INDUSTRY ASSOCIATION TIA represents the global informatio
48、n and communications technology (ICT) industry through standards development, advocacy, tradeshows, business opportunities, market intelligence and world-wide environmental regulatory analysis. Since 1924, TIA has been enhancing the business environment for broadband, wireless, information technolog
49、y, cable, satellite, and unified communications. TIA members products and services empower communications in every industry and market, including healthcare, education, security, public safety, transportation, government, the utilities. TIA is accredited by the American National Standards Institute (ANSI).
