1、TIA-102.BACA-B November 2012Project 25 Inter-RF Subsystem InterfaceMessages and Procedures for Voice Services, Mobility Management, and RFSS Capability Polling Services NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings b
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22、 AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-102.BACA-B iForeword(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
23、(MOU) dated December, 1993. That MOU provides that 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 TR
24、8.19 (Wireline Interfaces) with inputs from the APCO Project 25 Interface Committee (APIC), the APIC ISSI Task Group, and TIA Industry members. The symbol “P25” or the wording “Project 25” appearing on the cover sheet of this document when published or in the title of any TIA-102 document or Telecom
25、munications Service Bulletin (TSB) referenced herein, that indicates the APCO/NASTD/FED Project 25 Steering Committee has adopted the document as part of the Standard. The appearance of the abbreviation “P25” or the wording “Project 25” on the cover sheet of this document or in the title of any docu
26、ment referenced herein does not limit the applicability of the information contained in this document to “P25” or “Project 25” implementations exclusively. This document is being published to provide technical information on the emerging digital techniques for Land Mobile Radio Service. This documen
27、t defines an Inter-RF Subsystem Interface (ISSI) supporting TIA-102 trunked voice, trunked mobility management, and RFSS capability polling services. The ISSI is the interface between Radio Frequency Subsystems (RFSSs) enabling relevant Project 25 user requirements to be satisfied (e.g., as describe
28、d in the Inter-RF Subsystem Interface Overview (TSB-102.BACC-B). Standardization efforts are planned to continue developing TIA standards defining compliance tests (e.g., measurement methods, performance recommendations, and interoperability tests) applicable to equipment implementing the TIA-102 IS
29、SI protocols defined in this and other related TIA standards.TIA-102.BACA-B iiPatent 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 positio
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32、r 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 standard is
33、not an endorsement by TIA. TIA-102.BACA-B iiiTABLE OF CONTENTS1. INTRODUCTION . 11.1 SCOPE 21.2 TERMINOLOGY . 31.3 DOCUMENT STRUCTURE . 31.4 DEFINITIONS . 41.5 ABBREVIATIONS . 81.6 REFERENCES . 111.6.1 Normative References 111.6.2 Informative References 132. OVERVIEW OF ARCHITECTURE AND PROTOCOL SUI
34、TE 152.1 ARCHITECTURE OVERVIEW 152.1.1 Call Models . 172.1.1.1 Call Models for LMR System 172.1.1.2 ISSI Call Models 192.1.2 Subsystem Topologies 212.1.3 Functional Model 242.1.3.1 Mobility Management 262.1.3.1.1 Unit Mobility Management 262.1.3.1.2 Group Mobility Management . 282.1.3.1.3 Mobility M
35、anagement for Supplementary Data . 302.1.3.1.4 Packet Data Mobility Management Function . 312.1.3.2 Call Control 332.1.3.2.1 Unit Call Control 342.1.3.2.1.1 Media Tree Topology for SU-to-SU Calls . 362.1.3.2.1.2 RTP resource management for SU-to-SU Calls . 372.1.3.2.1.3 RF resource management for SU
36、-to-SU Calls 372.1.3.2.1.4 Vocoder Mode Selection for SU-to-SU Calls . 372.1.3.2.2 Group Call Control . 372.1.3.2.2.1 Group Call Topology 392.1.3.2.2.2 Group Call RTP Resource Management 392.1.3.2.2.3 Group Call RF Resource Management . 402.1.3.2.2.4 Group Call Vocoder Mode Selection . 402.1.3.3 Med
37、ia processing . 402.1.3.3.1 Media Processing for SU-to-SU Calls 412.1.3.3.2 Media Processing for Group Calls 422.1.3.4 RFSS Service Capability Polling . 422.1.4 Service Access Point Model . 432.1.4.1 Mobility Management SAP 452.1.4.1.1 MM Registration Transaction . 482.1.4.1.2 MM Serving Deregistrat
38、ion Transaction 492.1.4.1.3 MM Home Deregistration Transaction . 502.1.4.1.4 MM Query Transaction 502.1.4.2 Call Control SAP . 512.1.4.2.1 CC Call Segment Setup Transaction . 522.1.4.2.2 CC Call Segment Teardown Transaction 532.1.4.2.3 CC Call Segment Modification Transaction . 532.1.4.3 Transmissio
39、n Control SAP . 542.1.4.3.1 TC Context Management Transactions . 562.1.4.3.2 TC Spurt Request/Decision Transaction . 562.1.4.3.3 TC Spurt Start Transaction . 572.1.4.3.4 TC Unstoppable Request Transaction . 572.1.4.3.5 TC Decision Timeout Transaction 572.1.4.3.6 TC Mute Transaction 572.1.4.3.7 TC Se
40、t Losing Audio Transaction 57TIA-102.BACA-B iv2.1.4.3.8 TC Audio Transaction 582.1.4.3.9 TC Spurt End Transaction 582.1.4.3.10 TC_Error Transaction . 582.1.4.4 RFSS Service Capability Polling SAP. 582.1.4.4.1 RP Query Transaction . 592.2 ISSI INTERNET PROTOCOL SUITE . 592.2.1 Lower Layers . 602.2.2
41、Network Layer . 612.2.2.1 Internet Protocol Version 4 (IPv4) 612.2.2.1.1 IPv4 Header Format 612.2.2.1.2 Header Field Definitions . 622.2.2.2 Internet Protocol Version 6 (IPv6) 632.2.3 Transport Layer . 632.2.3.1 User Datagram Header Format 632.2.3.2 Header Field Definitions 642.2.4 Application Layer
42、 652.3 ISSI DATA TRANSMISSION ORDER . 653. SIP MESSAGES AND PARAMETERS DEFINITION FOR ISSI . 673.1 PREAMBLE:GRAMMAR . 673.2 SIP TRANSPORT 673.3 REQUEST LINE CONSTRUCTION . 683.4 SIP URI AND RELATED ADDRESSING LOGIC . 683.4.1 General Characteristics of SIP URIs 683.4.1.1 ISSI Domain Names . 683.4.1.2
43、 ISSI Radical Names . 693.4.1.3 ISSI Parameters 753.4.2 Request URI formatting Summary . 793.5 SIP HEADER ENCODING . 813.5.1 Accept 833.5.2 Allow 843.5.3 Call-ID . 843.5.4 Contact 853.5.5 Content-Disposition . 873.5.6 Content-Length 873.5.7 Content-Type . 873.5.8 Cseq . 913.5.9 Expires . 913.5.10 Fr
44、om . 913.5.10.1 From Header Field for REGISTER, INVITE, CANCEL, ACK, and BYE 923.5.10.2 From Header Field for OPTIONS 923.5.10.3 From Header Field for MESSAGE 933.5.11 Max-Forwards 933.5.12 MIME-Version 933.5.13 Priority 933.5.14 Record-Route 943.5.15 Route . 983.5.16 To 1023.5.16.1 To Header Field
45、for REGISTER 1033.5.16.1.1 To field for SUID (a(ii) and SGID registration . 1033.5.16.1.2 To field for Group Supplementary Data Interest (a(i) . 1033.5.16.1.3 To field for FNE Group Supplementary Data Interest (c(i) . 1043.5.16.1.4 To field for FNE Unit Supplementary Data Interest (c(ii),c(iii) 1043
46、.5.16.1.5 To field for Group SD Monitoring Interest (b(i.1) 1043.5.16.1.6 To field for FNE Group SD Monitoring Interest (b(i.2) 1053.5.16.1.7 To field for Unit SD Monitoring Interest (b(ii), b(iii) . 1053.5.16.1.8 To field for PD SN Context Registration 1053.5.16.2 To Header Field for INVITE, CANCEL
47、, ACK, and BYE . 1053.5.16.3 To Header Field for OPTIONS 106TIA-102.BACA-B v3.5.16.4 To Header Field for MESSAGE 1073.5.17 Via . 1073.5.18 Warning 1083.6 STATUS-CODE AND REASON-PHRASE . 1153.7 SDP ANNOUNCEMENTS . 1153.7.1 SDP offer/answer usage 1153.7.2 SDP parameters encoding . 1183.7.2.1 Session-l
48、evel part . 1183.7.2.1.1 The protocol version field . 1183.7.2.1.2 The origin field . 1193.7.2.1.3 The session name field 1193.7.2.1.4 The time field 1203.7.2.1.5 The connection field . 1203.7.2.2 Media description part . 1203.7.2.2.1 The media announcement field . 1203.7.2.2.2 Attributes fields 121
49、3.7.3 SDP examples 1223.7.3.1 SDP Offer with Mutiple Vocoder Modes Being Offered . 1223.7.3.2 SDP Offer in Older RFSS Implementations . 1233.8 X-TIA-P25-ISSI BODY PARAMETERS . 1233.8.1 Group Service Profile attributes 1243.8.1.1 Access Permission (g-access). 1253.8.1.2 Announcement Group (g-agroup) 1253.8.1.3 Priority (g-pri) 1253.8.1.4 Emergency Capable (g-ecap) . 1263.8.1.5 Emergency Preemption (g-eprempt) 1263.8.1.6 RF Hang Time (g-rfhangt) . 1263.8.1.7 Confirmed Call Setup Time (g-ccsetupT) 1273.8.1.8 Interrupt Mode (g-intmode) . 1273.8.1.9 Group Security Level
