1、 TIA-102.CACB-1-2008 APPROVED: DECEMBER 10, 2008 REAFFIRMED: JANUARY 29, 2013 TIA-102.CACB-1 (Addendum to TIA-102.CACB) December 2008Project 25 Inter-RF Subsystem Interface (ISSI) Performance Recommendations for Voice Services-Addendum 1 Trunked Console ISSI NOTICE TIA Engineering Standards and Publ
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22、F 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THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-102.CACB-1 iFOREWORD (This foreword is not part of this TIA standard.) This document has been published by the
23、Telecommunications Industry Association (TIA) in accordance with the terms and conditions provided for in a Memorandum of Understanding executed by and between the TIA, the Association of Public Safety Communications Officials (APCO), the National Association of State Telecommunications Directors, a
24、nd the various agencies of the Federal government. The TIA makes no claims as to the applicability of the information contained in this document for any purpose although it is believed that the information will prove to be invaluable to designers of Inter-Radio Frequency Subsystem Interface (ISSI) c
25、ompliant 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 invested in the preparation of this document to ensure the accuracy of the information it contains. This docume
26、nt specifies values for selected performance parameters defined in a companion TIA standard in the 102-series (Inter-RF Subsystem Interface (ISSI) Measurement Methods for Voice Services). Collectively, these two standards address performance assessment aspects of wide area voice services provided by
27、 Project 25 (P25) Radio Frequency Sub-Systems (RFSSs) interconnected with P25-standardized ISSI functional services and protocols defined by TIA-102.BACA (Inter-RF Subsystem Interface Messages and Procedures Definition for Voice Services). Future work is planned to specify recommended performance ob
28、jectives for P25-standardized wide area functional services and protocols involving the ISSI in the following areas: enhancement to the initial set of ISSI performance recommendations specified in this document, console interactions across the ISSI, ISSI support for supplementary data services (e.g.
29、, call alert); ISSI support for data services; ISSI support for network management of subscriber units and network elements, which is not considered part of the ISSI; ISSI support of telephone interconnect (including emergency services) by roamers back over their ISSI interconnected Home P25 system;
30、 ISSI support for emergency multimedia services; ISSI-related traffic engineering, traffic control, resource reservation, and service level agreements; and, interconnection of ISSI lower layers in an interoperable manner. TIA-102.CACB-1 ii Patent Identification The readers attention is called to the
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34、ollowing trademarks are referenced in this specification: IMBE is a trademark of Digital Voice Systems, Inc.*Use of the trademark identified in this standard is not an endorsement by TIA. TIA-102.CACB-1 iiiTABLE OF CONTENTS 1 INTRODUCTION 11.1 Scope 11.2 Document organization 12 REFERENCES 22.1 Norm
35、ative references 22.2 Informative references 23 DOCUMENT REVISION HISTORY 34 ABBREVIATIONS 35 TERMS AND DEFINITIONS 36 IVS PERFORMANCE MODELS 37 IVS PERFORMANCE SPECIFICATIONS 37.1 IVS call set-up delay 37.2 IVS call set-up failure ratio 67.3 IVS message transfer delay 67.4 IVS message loss ratio 8A
36、nnex A Performance Specification derivations for IVS-CSD and IVS-MTD Composite Parameters 9TIA-102.CACB-1 iv ADDENDUM INTRODUCTION The purpose of this addendum is to provide an update to TIA-102.CACB, April 2007, “Project 25 Inter-RF Subsystem Interface Performance Recommendations for Voice Services
37、“. This addendum specifies the technical and editorial changes required to include Trunked Console Subsystems as specified in TIA-102.BACA-2, April 2007, in the scope of this document. Addendum Scope This addendum introduces the required changes to TIA-102.CACB, April 2007, “Project 25 Inter-RF Subs
38、ystem Interface Performance Recommendations for Voice Services“ to add the Trunked Console Subsystem to its scope. In relation to its consoles, a Console Subsystem is considered to be a Serving RFSS or both a Serving and Home RFSS that connects to other RFSSs using the ISSI as defined in TIA-102.BAC
39、A and TIA-102.BACA-2. As defined in addendum 1 to TIA-102.CACA April 2007, “Project 25 Inter-RF Subsystem Interface Measurement Methods for Voice Services“, if approved to be published as TIA-102.CACA-1, some timing parameters do not apply when the source or destination SU is a console. This addendu
40、m identifies the areas where these changes affect the recommended performance parameters. This document will only include information relevant to the above-listed functionality. The reader is referred to TIA-102.CACB, April 2007 for all other pertinent information. The next complete revision of TIA-
41、102.CACB will incorporate the changes contained in this addendum. Care must be taken when incorporating changes in this addendum to avoid conflicts with any changes made by other addendums that are incorporated at the same time. TIA-102.CACB consistently describes the source and destination of a cal
42、l to be an SU (Subscriber Unit). With the addition of support for consoles, an SU participating in call can now be a console. No attempt has been made to modify the text every time the term SU is used. Changes to TIA-102.CACB for this feature are described in this document starting at Section I. Tex
43、t inside block parenthesis and italic font provide instructions on how to incorporate changes in a section. Note that if a section contains subsections, and neither the section nor its subsections change, only the section will be identified in this document. The headings of sections with changes are
44、 shown in bold font. Note that section numbers identified in this addendum directly translate to section numbers in the TIA-102.CACB, April 2007, Project 25 Inter-RF Subsystem Interface Performance Recommendations for Voice Services“ document. Addendum References The majority of the implementation o
45、f the Trunked Console ISSI is specified in: 102BACA-2 Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services Addendum 2 Trunked Console ISSI, TIA-TIA-102.CACB-1 v102.BACA-2, published April 2007. TIA-102.CACB-1 vi TIA-102.CACB-1 1PROJECT 25 INTER-RF SUBSYSTEM INTERFACE (I
46、SSI) PERFORMANCE RECOMMENDATIONS FOR VOICE SERVICES 1 INTRODUCTION Review of the existing text in this section of TIA-102.CACB, April 2007 identified no change for this addendum. 1.1 Scope Replace the text in this section of TIA-102.CACB, April 2007 with the following text. This document specifies v
47、alues for performance parameters defined in a companion TIA standard, Project 25 Inter-RF Subsystem Interface (ISSI) Measurement Methods for Voice Services 1 and 4. The scope of this document is limited to the specification of performance parameter values in the context of the measurement methods st
48、andardized by the normative references. The objective and purpose of this document are to specify minimum levels of performance for ISSI voice services (IVS) that are used in providing P25 wide area voice services.1The intended users of this document include P25 voice service providers, equipment ma
49、nufacturers, and end users. This document may be used (1) by service providers in the planning, development, and assessment of P25 voice services that meet end user performance needs, (2) by equipment manufacturers as performance metrics that will affect equipment design, and (3) by end users in evaluating performance. Note: The scope of these performance recommendations is limited to systems based on terrestrial IP backbone networks. The scope does not include systems that use satellite links within their IP backbone networks. The use of satellite links is lef
