1、 TIA STANDARD Project 25 Inter-RF Subsystem Interface Messages and Procedures Addendum 1 Erratum 1 to Fix Errors and Omissions TIA-102.BACA-1 (Erratum for TIA-102.BACA) April 2007 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic
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7、. (From Standards Proposal No. 3-3796-AD1, formulated under the cognizance of the TIA, TR-8 Mobile and Personal Private Radio Standards. TR-8.19 Subcommittee on Wireline System Interfaces). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulevard
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25、thout license from IHS-,-,-TIA-102.BACA-1 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 t
26、hat APCO/NASTD/FED will devise a 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
27、 APCO Project 25 Interface Committee (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 is an ERRATA to TIA-102.BACA, August 2006, Project 25 Int
28、er-RF Subsystem Interface (ISSI) Messages and Procedures for 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 r
29、elated standardization efforts are planned to develop 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.,
30、measurement methods, performance recommendations, 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
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34、 or for conducting inquiries into the legal validity 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.11Use of the trademark identified in this standa
35、rd is not an endorsement by TIA. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.BACA-1 iii TABLE OF CONTENTS 1. INTRODUCTION 1 1.1 SCOPE . 1 1.2 TERMINOLOGY 2 1.3 DOCUM
36、ENT STRUCTURE 2 1.4 DEFINITIONS 2 1.5 ABBREVIATIONS 2 1.6 REFERENCES 2 2. OVERVIEW OF ARCHITECTURE AND PROTOCOL SUITE . 4 2.1 ARCHITECTURE OVERVIEW . 4 2.1.1 Call Models 4 2.1.2 Subsystem Topologies. 4 2.1.3 Functional Model . 4 2.1.3.1 Mobility Management 4 2.1.3.1.1 Unit Mobility Management 4 2.1.
37、3.1.2 Group Mobility Management . 6 2.1.3.2 Call Control 7 2.1.3.2.1 Unit Call Control 7 2.1.3.2.1.1 Media Tree Topology for SU-to-SU Calls . 9 2.1.3.2.1.2 RTP resource management for SU-to-SU Calls . 9 2.1.3.2.1.3 RF resource management for SU-to-SU Calls 9 2.1.3.2.2 Group Call Control . 9 2.1.3.2.
38、2.1 Group Call Topology 11 2.1.3.2.2.2 Group Call RTP Resource Management 11 2.1.3.2.2.3 Group Call RF Resource Management. 11 2.1.3.3 Media processing . 11 2.1.4 Service Access Point Model 11 2.1.4.1 Mobility Management SAP 13 2.1.4.2 Call Control SAP . 13 2.1.4.3 Transmission Control SAP. 14 2.2 I
39、SSI INTERNET PROTOCOL SUITE 14 3. SIP MESSAGES AND PARAMETERS DEFINITION FOR ISSI 15 3.1 PREAMBLE: GRAMMAR 15 3.2 SIP TRANSPORT . 16 3.3 REQUEST LINE CONSTRUCTION 16 3.4 SIP URI AND RELATED ADDRESSING LOGIC 16 3.5 SIP HEADER ENCODING 17 3.5.1 Accept . 19 3.5.2 Allow. 19 3.5.3 Call-ID 19 3.5.4 Contac
40、t . 20 3.5.5 Content-Disposition 20 3.5.6 Content-Length . 20 3.5.7 Content-Type 20 3.5.8 Cseq 23 3.5.9 Expires 23 3.5.10 From 23 3.5.11 Max-Forwards . 24 3.5.12 MIME-Version . 24 3.5.13 Priority. 25 3.5.14 Record-Route . 25 Copyright Telecommunications Industry Association Provided by IHS under lic
41、ense with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.BACA-1 iv 3.5.15 Route 25 3.5.16 To . 28 3.5.17 Via 29 3.5.18 Warning . 30 3.6 STATUS-CODE AND REASON-PHRASE 32 3.7 SDP ANNOUNCEMENTS 32 3.7.1 SDP offer/answer usage . 32 3.7.2 SDP parameters enco
42、ding 32 3.7.2.1 Session-level part . 32 3.7.2.1.1 The protocol version field. 32 3.7.2.1.2 The origin field . 32 3.7.2.1.3 The session name field33 3.7.2.1.4 The time field 34 3.7.2.1.5 The connection field . 34 3.7.2.2 Media description part . 34 3.7.3 SDP example 34 3.8 X-TIA-P25-ISSI BODY PARAMET
43、ERS 34 3.8.1 Group Service Profile attributes. 35 3.8.1.1 Access Permission (g-access). 36 3.8.1.2 Announcement Group (g-agroup) 37 3.8.1.3 Priority (g-pri) 37 3.8.1.4 Emergency Capable (g-ecap) . 37 3.8.1.5 Emergency Preemption (g-eprempt) 37 3.8.1.6 RF Hang Time (g-rfhangt) . 37 3.8.1.7 Confirmed
44、Call Setup Time (g-ccsetupT) 37 3.8.1.8 Interrupt Mode (g-intmode) . 38 3.8.1.9 Group Security Level (g-sec). 38 3.8.1.10 Interconnect Flag (g-ic) 38 3.8.1.11 Interconnect Security (g-icsecstart)38 3.8.1.12 Manufacturer Specific (g-man) 38 3.8.1.13 Example Group Service Profiles 38 3.8.1.13.1 Fully
45、Specified Example. 38 3.8.1.13.2 Minimum Group Service Profile 38 3.8.2 User Service Profile attributes . 38 3.8.2.1 System Access Permission (u-access) 39 3.8.2.2 Duplexity (u-dup). 39 3.8.2.3 Secure Capable (u-sec). 39 3.8.2.4 Group Call Permissions (u-gcall). 39 3.8.2.5 Unit-to-unit Call Permissi
46、ons (u-ucall) 39 3.8.2.6 Unit-to-unit Call Priority (u-upri) 39 3.8.2.7 Interconnect Permissions (u-iccall) 39 3.8.2.8 Interconnect Security (u-icsec) 39 3.8.2.9 Interconnect Call Priority (u-icpri). 40 3.8.2.10 Authentication Type/Capability (u-authtype) 40 3.8.2.11 Authentication Policy (u-authpol
47、) 40 3.8.2.12 Authentication Parameters (u-authparm) . 40 3.8.2.13 Availability Check Attribute (u-availcheck) 40 3.8.2.14 Call Set-Up Preference Attribute (u-prefsetup) 40 3.8.2.15 Manufacturer Specific Attributes (u-man) . 40 3.8.2.16 Example User Service Profiles.40 3.8.3 P25 specific register pa
48、rameter attributes . 40 3.8.3.1 Force Register 41 3.8.3.2 Confirm Register 41 3.8.3.3 SU Presence . 42 3.8.4 P25 specific call parameter attributes 42 3.8.4.1 Initial transmitter 43 3.8.4.2 RF Resource Availability. 43 3.8.4.3 Preference 44 3.8.4.4 Duplex Mode . 44 3.8.4.5 In-call roaming. 45 3.8.4.
49、6 Group Call Type 45 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.BACA-1 v 3.8.4.7 Protected . 45 3.9 EXAMPLES48 4. RTP MESSAGE VOCABULARY FOR ISSI 59 4.1 RTP FIXED HEADER FIELD DEFINITIONS 59 4.2 P25 PAYLOAD HEADER. 59
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