1、 TIA STANDARD Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services TIA-102.BACA (Upgrade/Revision of TSB-102.BACA)August 2006 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance Copy
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7、96-URV-1, formulated under the cognizance of the TIA, TR-8.19 Mobile andPersonal Private Radio standards/ Wireline System Interfaces ).Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to curr
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25、-102.BACA i Foreword (This foreword is not part of this standard.) 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
26、 Common System 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 by TR8.19 (Wireline Interfaces) with inputs from the APCO Project 25 Interface Commi
27、ttee (APIC), the APIC ISSI Task Group, and TIA Industry members. This document is being published to provide technical information on the emerging digital techniques for Land Mobile Radio Service. This document defines an Inter-RF Subsystem Interface (ISSI) for Project 25 supporting Project 25-defin
28、ed trunked voice services. The ISSI is the interface between Radio Frequency Subsystems (RFSSs) enabling relevant Project 25 user requirements to be satisfied (e.g., as described in the Inter-RF Subsystem Interface Overview (TSB-102.BACC-A). Future related standardization efforts are planned to deve
29、lop new TIA standards defining protocols for an ISSI supporting Project 25-defined conventional voice and data services. In addition, future associated standardization efforts are planned to develop new TIA standards defining compliance tests (e.g., measurement methods, performance recommendations,
30、and interoperability tests) applicable to equipment implementing the Project 25 ISSI protocols defined in this and future related TIA standards.Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without licens
31、e from IHS-,-,-TIA-102.BACA ii 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 publication of this document no position is taken with respect to the validity of thos
32、e 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 terms and conditions to applicants desiring to obtain such licenses. The following pa
33、tent 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 be required by this document or for conducting inquiries into the legal validity
34、or scope of those patents that are brought to its attention. Trademark Identification The following 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. Copyright Telecommuni
35、cations Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.BACA iii TABLE OF CONTENTS 1. INTRODUCTION .16 1.1 SCOPE 17 1.2 TERMINOLOGY .18 1.3 DOCUMENT STRUCTURE .18 1.4 DEFINITIONS .18 1.5 ABBREVIATIO
36、NS.21 1.6 REFERENCES.23 1.6.1 Normative References23 1.6.2 Informative References24 2. OVERVIEW OF ARCHITECTURE AND PROTOCOL SUITE 26 2.1 ARCHITECTURE OVERVIEW26 2.1.1 Call Models .27 2.1.1.1 Project 25 Call Models. 27 2.1.1.2 ISSI Call Models 29 2.1.2 Subsystem Topologies31 2.1.3 Functional Model 3
37、4 2.1.3.1 Mobility Management 36 2.1.3.1.1 Unit Mobility Management 36 2.1.3.1.2 Group Mobility Management . 37 2.1.3.2 Call Control 38 2.1.3.2.1 Unit Call Control 38 2.1.3.2.1.1 Media Tree Topology for SU-to-SU Calls . 40 2.1.3.2.1.2 RTP resource management for SU-to-SU Calls . 41 2.1.3.2.1.3 RF re
38、source management for SU-to-SU Calls 41 2.1.3.2.2 Group Call Control . 41 2.1.3.2.2.1 Group Call Topology . 42 2.1.3.2.2.2 Group Call RTP Resource Management 43 2.1.3.2.2.3 Group Call RF Resource Management. 43 2.1.3.3 Media processing . 44 2.1.3.3.1 Media Processing for SU-to-SU Calls 45 2.1.3.3.2
39、Media Processing for Group Calls 46 2.1.4 Service Access Point Model.46 2.1.4.1 Mobility Management SAP 48 2.1.4.1.1 MM Registration Transaction. 49 2.1.4.1.2 MM Deregistration Transaction 50 2.1.4.1.3 MM Roamed Transaction . 51 2.1.4.1.4 MM Query Transaction 51 2.1.4.2 Call Control SAP . 52 2.1.4.2
40、.1 CC Call Segment Setup Transaction. 53 2.1.4.2.2 CC Call Segment Teardown Transaction 54 2.1.4.2.3 CC Call Segment Modification Transaction. 54 2.1.4.3 Transmission Control SAP. 55 2.1.4.3.1 TC Context Management Transactions. 57 2.1.4.3.2 TC Spurt Request/Decision Transaction. 57 2.1.4.3.3 TC Spu
41、rt Start Transaction . 58 2.1.4.3.4 TC Unstoppable Request Transaction. 58 2.1.4.3.5 TC Decision Timeout Transaction 58 2.1.4.3.6 TC Mute Transaction 58 2.1.4.3.7 TC Set Losing Audio Transaction 58 2.1.4.3.8 TC Audio Transaction 59 2.1.4.3.9 TC Spurt End Transaction 59 2.1.4.3.10 TC_Error Transactio
42、n. 59 2.2 ISSI INTERNET PROTOCOL SUITE.59 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.BACA iv 2.2.1 Lower Layers 60 2.2.2 Network Layer 61 2.2.2.1 Internet Protocol
43、Version 4 (IPv4) 61 2.2.2.1.1 IPv4 Header Format61 2.2.2.1.2 Header Field Definitions 62 2.2.2.2 Internet Protocol Version 6 (IPv6) 63 2.2.3 Transport Layer 63 2.2.3.1 User Datagram Header Format 63 2.2.3.2 Header Field Definitions 64 2.2.4 Application Layer . 65 2.3 ISSI DATA TRANSMISSION ORDER 65
44、3. SIP MESSAGES AND PARAMETERS DEFINITION FOR ISSI 67 3.1 PREAMBLE: GRAMMAR 67 3.2 SIP TRANSPORT . 67 3.3 REQUEST LINE CONSTRUCTION. 68 3.4 SIP URI AND RELATED ADDRESSING LOGIC 68 3.4.1 General Characteristics of SIP URIs 68 3.4.1.1 P25 Domain Names . 68 3.4.1.2 P25 Radical Names 70 3.4.1.3 P25 Para
45、meters 73 3.4.2 Request URI formatting Summary 75 3.5 SIP HEADER ENCODING 77 3.5.1 Accept . 78 3.5.2 Allow. 79 3.5.3 Call-ID 79 3.5.4 Contact 80 3.5.5 Content-Disposition 81 3.5.6 Content-Length . 82 3.5.7 Content-Type 82 3.5.8 Cseq 85 3.5.9 Expires 85 3.5.10 From. 85 3.5.11 Max-Forwards . 86 3.5.12
46、 MIME-Version . 86 3.5.13 Priority. 87 3.5.14 Record-Route . 87 3.5.15 Route 91 3.5.16 To . 94 3.5.17 Via 94 3.5.18 Warning . 95 3.6 STATUS-CODE AND REASON-PHRASE. 97 3.7 SDP ANNOUNCEMENTS 97 3.7.1 SDP offer/answer usage . 97 3.7.2 SDP parameters encoding 98 3.7.2.1 Session-level part. 99 3.7.2.1.1
47、The protocol version field. 99 3.7.2.1.2 The origin field. 99 3.7.2.1.3 The session name field . 100 3.7.2.1.4 The time field . 100 3.7.2.1.5 The connection field . 100 3.7.2.2 Media description part . 100 3.7.2.2.1 The media announcement field. 100 3.7.2.2.2 Attributes fields 101 3.7.3 SDP example.
48、 101 3.8 X-TIA-P25-ISSI BODY PARAMETERS 102 3.8.1 Group Service Profile attributes. 102 3.8.1.1 Access Permission (g-access) 103 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
49、TIA-102.BACA v 3.8.1.2 Announcement Group (g-agroup) 104 3.8.1.3 Priority (g-pri) 104 3.8.1.4 Emergency Capable (g-ecap) . 104 3.8.1.5 Emergency Preemption (g-eprempt) 105 3.8.1.6 RF Hang Time (g-rfhangt) . 105 3.8.1.7 Confirmed Call Setup Time (g-ccsetupT) 105 3.8.1.8 Interrupt Mode (g-intmode) . 106 3.8.1.9 Group Security Level (g-sec). 106 3.8.1.10 In
