1、 TIA TELECOMMUNICATIONS SYSTEMS BULLETIN Project 25 Inter-RF Subsystem Interface Overview New Technology Standards Project Digital Radio Technical Standards TSB-102.BACC-A (Revision of TIA.EIA/TSB-102.BACC) DECEMBER 2003 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Associa
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26、S under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A iForeword (This foreword is not part of this standard.) This document has been published by the Telecommunications Industry Association (TIA) in accordance with the terms and con
27、ditions provided for in a Memorandum of Understanding (MoU) executed by and between the TIA, the Association of Public Safety Communications Officials (APCO), the National Association of State Telecommunications Directors (NASTD), and the various agencies of the Federal government (FED). This docume
28、nt contains an overview of the APCO Project 25 (P25) ISSI and includes basic Inter-Radio Frequency Subsystem Interface (ISSI) requirements as defined by the User Needs ISSI Statement of Requirements (SoR). The TIA makes no claims as to the applicability of the information contained in this document
29、for any purpose although it is believed that the information will prove to be invaluable to designers of ISSI-compliant equipment. 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
30、invested in the preparation of this document to ensure the accuracy of the information it contains. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A iiPatent Identification
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34、ght Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A iiiTABLE OF CONTENTS 1. INTRODUCTION .7 1.1 SCOPE 7 1.2 ORGANIZATION 8 1.3 DOCUMENT REVISION HISTORY.9 2. ACRONYMS AND ABBREVIATI
35、ONS10 3. INFORMATIVE REFERENCES 11 4. ISSI REQUIREMENTS12 4.1 BACKGROUND 12 4.2 ISSI CONNECTIVITY REQUIREMENTS 14 4.3 ISSI SERVICES REQUIREMENTS15 4.4 ISSI INTERFACE REQUIREMENTS .17 4.4.1 Control Element 18 4.4.2 Traffic Element18 5. ISSI STANDARDS CONSIDERATIONS.19 5.1 ISSI FUNCTIONAL SERVICES.19
36、5.1.1 Basic Call Control and Services Support19 5.1.2 Voice Payload Presentation 20 5.1.3 Mobility Management20 5.1.4 Security Services22 5.1.5 Directory Services .22 5.1.6 Compression Services22 5.1.7 Subscriber Unit Management23 5.2 ISSI PROTOCOLS.23 5.2.1 Lower Layers.24 5.2.2 Network Layer .24 5
37、2.3 Transport Layer.26 5.2.4 Application Layer26 5.3 FUTURE ISSI STANDARDS CONSIDERATIONS.26 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A ivTable of Figures FIGURE 1 -
38、 TYPICAL SYSTEM MODEL DEPICTING ISSI (G INTERFACE) 14 FIGURE 2 - INTERNET ARCHITECTURE LAYERS VIS-A-VIS OSI LAYERS . 24 FIGURE 3 - ISSI INTERNET PROTOCOL SUITE (FOR VOICE CALLS) . 25 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or netwo
39、rking permitted without license from IHS-,-,-TSB-102.BACC-A vList of Tables TABLE 1 - BEARER SERVICES 15 TABLE 2 - TELESERVICES.16 TABLE 3 - SUPPLEMENTARY SERVICES 16 TABLE 4 - SERVICES TO THE SUBSCRIBER .17 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for Resal
40、eNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A viCopyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A 71. Introduction The purpose of this
41、 document is to provide an informative overview of key technical requirements and standards considerations supporting specification of the Inter-RF Subsystem Interface (ISSI). Integral to the Project 25 (P25) system architecture, technical specification of the ISSI as an open interface is required t
42、o realize extended coverage areas for subscribers of P25 services through the interconnection, on an interoperable and non-proprietary basis, of P25 Radio Frequency Subsystems (RFSSs). This document is, therefore, primarily intended to facilitate the development of technical standards defining the s
43、ervice and protocol aspects of the ISSI. In addition, the document may facilitate development of technical standards concerning definition of measurement methods, performance recommendations, conformance tests, and interoperability test methods involving the ISSI. 1.1 Scope The scope of this documen
44、t is restricted initially to the provision of information relevant to the development of standards supporting wide area voice services involving the ISSI via interconnection of multi-vendor P25 Phase 1 and Phase 2 RFSSs over IP-based networks. The scope of this document in specifying the ISSI for su
45、pport of wide area voice services includes the following: ISSI interoperability complementing the air interface interoperability standards for voice calls involving the Umand Efinterfaces; End-to-end encrypted voice services supporting Subscriber Units (SUs) spanning multiple RFSSs; Mandatory and st
46、andard option services as specified in TSB102A, although there may be P25 Phase 1 signaling related service limitations between conventional P25 systems, and between conventional and trunked, which are not detailed in TSB102A. For example, with conventional P25 systems using abbreviated addressing f
47、ormat AABC BAAA for SU-to-SU voice calls, subscriber unit A on a conventional P25 system cannot establish a voice call directly (over the ISSI) with subscriber unit B on a trunked P25 system or on another conventional P25 system; operator intervention would be required to establish the call. Within
48、this scope (i.e., focus on ISSI support of wide area voice service), the planned suite of ISSI-related documents consists of (in addition to this document): ISSI Messages Definition for Voice Services; ISSI Measurement Methods for Voice Services; ISSI Performance Recommendations for Voice Services;
49、ISSI Conformance Tests for Voice Services; Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TSB-102.BACC-A 8 ISSI Interoperability Test Methods for Voice Services. The ISSI Messages Definition for Voice Services document, which will provide detailed
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