TIA-102 BACA-B-1-2013 Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services Mobility Management and RFSS Capability Polling Services- Addendum 1 - Grou.pdf

1、 TIA-102.BACA-B-1 (Addendum to TIA-102.BACA-B) July 2013Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services, Mobility Management, and RFSS Capability Polling Services- Addendum 1- Group Emergency Behaviors NOTICE TIA Engineering Standards and Publications are designed

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19、AGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS.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.BACA-B-1 i Foreword (This foreword is not part of this standard.) This document has been created to further the objectives outlined in a Memorandum of U

20、nderstanding (MOU) dated December, 1993 between APCO/NASTD/FED and the Telecommunications Industry Association (TIA). The MOU provides that APCO/NASTD/FED will devise a Common System Standard for digital public safety communications (the Standard), and that TIA shall, to the extent TIA members are w

21、illing, provide technical assistance in the development of documentation for the Standard. This document has been developed by TR8.19 (Wire-line Interfaces) with inputs from the APCO Project 25 Interface Committee (APIC), the APIC ISSI Task Group, and TIA Industry members. The appearance of the abbr

22、eviation “P25” or the phrase “Project 25” on the cover sheet of this document when published or in the title of any TIA-102 document or Telecommunications Service Bulletin (TSB) referenced herein, indicates the APCO/NASTD/FED Project 25 Steering Committee has adopted the document as part of the Stan

23、dard. The appearance of the abbreviation “P25” or the phrase “Project 25” on the cover sheet of this document or in the title of any document referenced herein does not limit the applicability of the information contained in the document to “P25” or “Project 25” implementations exclusively. This doc

24、ument is an Addendum to 102BACA. The ISSI is the interface between Radio Frequency Subsystems (RFSSs) satisfying relevant user requirements as described in 102BACC.TIA-102.BACA-B-1 ii Patent Identification The readers attention is called to the possibility that compliance with this document may requ

25、ire 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 those claims or any patent rights in connection therewith. The patent holders so far identified have, we believe, filed statements of willingness to gr

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27、shall not be responsible for identifying patents for which licenses may be required by this document 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

28、: IMBE is a trademark of Digital Voice Systems, Inc.11Use of the trademark identified in this standard is not an endorsement by TIA. TIA-102.BACA-B-1 iii TABLE OF CONTENTS A. ADDENDUM INTRODUCTION . 1 B. ADDENDUM SCOPE . 1 C. ADDENDUM REFERENCES 2 1. NORMATIVE REFERENCES 2 1. INTRODUCTION . 3 1.1 SC

29、OPE . 3 1.2 TERMINOLOGY 3 1.3 DOCUMENT STRUCTURE 3 1.4 DEFINITIONS 3 1.5 ABBREVIATIONS . 3 1.6 REFERENCES 3 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 6 2.1.3.2

30、 Call Control 6 2.1.3.2.1 Unit Call Control 6 2.1.3.2.2 Group Call Control . 6 2.1.3.2.2.1 Group Call Topology 8 2.1.3.2.2.2 Group Call RTP Resource Management . 8 2.1.3.2.2.3 Group Call RF Resource Management . 8 2.1.3.2.2.4 Group Call Vocoder Mode Selection 9 2.1.3.2.2.5 Group Emergency Signaling

31、. 9 2.1.3.3 Media processing . 9 2.1.3.4 RFSS Service Capability Polling . 9 2.1.4 Service Access Point Model . 9 2.1.4.1 Mobility Management SAP 9 2.1.4.2 Call Control SAP . 9 2.1.4.2.1 CC Call Segment Setup Transaction . 11 2.1.4.2.2 CC Call Segment Teardown Transaction 11 2.1.4.2.3 CC Call Segmen

32、t Modification Transaction . 11 2.1.4.2.4 CC Group Emergency Cancel Transaction . 11 2.1.4.3 Transmission Control SAP . 12 2.2 ISSI INTERNET PROTOCOL SUITE 12 2.3 ISSI DATA TRANSMISSION ORDER . 12 3. SIP MESSAGES AND PARAMETERS DEFINITION FOR ISSI . 13 3.1 PREAMBLE: GRAMMAR 13 3.2 SIP TRANSPORT . 13

33、 3.3 REQUEST LINE CONSTRUCTION 13 3.4 SIP URI AND RELATED ADDRESSING LOGIC . 13 3.5 SIP HEADER ENCODING . 13 3.6 STATUS-CODE AND REASON-PHRASE 13 3.7 SDP ANNOUNCEMENTS 13 3.8 X-TIA-P25-ISSI BODY PARAMETERS 13 3.8.1 Group Service Profile attributes . 13 TIA-102.BACA-B-1 iv 3.8.2 User Service Profile

34、attributes . 13 3.8.3 RFSS Service Capability Profile attributes . 13 3.8.4 ISSI specific register parameter attributes . 13 3.8.5 ISSI specific call parameter attributes 13 3.8.5.1 Initial transmitter . 13 3.8.5.2 RF Resource Availability . 13 3.8.5.3 Preference 14 3.8.5.4 Duplex Mode . 14 3.8.5.5

35、In-call roaming . 14 3.8.5.6 Group Call Type 14 3.8.5.7 Protected 15 3.8.5.8 Console Transmit Request Priority 15 3.9 X-TIA-P25-SNDCP BODY PARAMETERS . 15 3.10 EXAMPLES 15 4. RTP MESSAGE VOCABULARY FOR ISSI . 15 5. MOBILITY MANAGEMENT . 15 6. CALL CONTROL 16 6.1 CC-SAP 16 6.2 SIP TRANSACTIONS 16 6.3

36、 STATE MODELS FOR ISSI VOICE SERVICES 16 6.4 BASIC ISSI SIP CONTROL PROCEDURES 16 6.5 CALL CONTROL PROCEDURES FOR ISSI SU-TO-SU VOICE SERVICES . 16 6.6 CALL CONTROL PROCEDURES FOR ISSI GROUP VOICE SERVICES 16 6.6.1 ISSI Group Voice Call Setup 17 6.6.1.1 General . 17 6.6.1.2 Group Voice Call Setup In

37、itiated by Serving RFSS 18 6.6.1.2.1 Actions Required at Serving RFSS . 18 6.6.1.2.2 Actions Required at Home RFSS . 19 6.6.1.3 Call Segment Setup Initiated by Home RFSS 21 6.6.1.3.1 Actions Required at Home RFSS . 22 6.6.1.3.2 Actions Required at Serving RFSS . 24 6.6.2 Subsequent Modification of I

38、SSI SIP Session Characteristics . 26 6.6.3 Handling (re-)INVITE Request Collisions 26 6.6.4 ISSI SIP Heartbeat 26 6.6.5 ISSI SIP Session Termination by Home RFSS 26 6.6.6 ISSI SIP Session Termination by Serving RFSS . 26 6.6.7 ISSI Group Voice Call Release . 26 6.6.8 ISSI Group Emergency Cancellatio

39、n 26 6.6.8.1 Group Emergency Cancellation Initiated by Serving RFSS 26 6.6.8.2 Group Emergency Cancellation Initiated by Home RFSS . 26 7. PUSH-TO-TALK (PTT) MANAGEMENT 28 8. RFSS SERVICE CAPABILITY POLLING . 28 ANNEX A (NORMATIVE) GENERIC SIP RESPONSES OVER THE ISSI . 29 ANNEX B (NORMATIVE) TABLE O

40、F TIMERS AND CONSTANTS 29 ANNEX C (NORMATIVE) TIA-102 VOCODER ERROR MITIGATION DATA . 29 ANNEX D (NORMATIVE) SU-TO-SU CALL FLOWS . 29 ANNEX E (NORMATIVE) GROUP CALL FLOWS . 29 TIA-102.BACA-B-1 v ANNEX F (INFORMATIVE) SU-TO-SU CALL FLOWS INVOLVING MULTIPLE VOCODER MODES 29 ANNEX G (INFORMATIVE) GROUP

41、 CALL FLOWS INVOLVING MULTIPLE VOCODER MODES 29 ANNEX H (INFORMATIVE) FUTURE CONSIDERATIONS 29 ANNEX I (INFORMATIVE) CONSOLE FUNCTIONALITY . 29 TIA-102.BACA-B-1 vi DOCUMENT REVISION HISTORY Version Date Description Rev 0 June, 2013 Approved for TIA publication. TIA-102.BACA-B-1 1 A. Addendum Introdu

42、ction The purpose of this addendum is to update information contained in 102BACA, to include procedural changes to support consistent group emergency behaviors between RFSSs that may implement different group emergency tracking behaviors per 102AABD. B. Addendum Scope This addendum provides the foll

43、owing changes to the ISSI: (1) Enhanced Group Emergency procedures This document will only include information relevant to the aforesaid scope. The reader is referred to 102BACA for all other pertinent information. The next complete revision of 102BACA will incorporate the changes contained in this

44、addendum. Care must be taken when incorporating changes in this addendum to avoid conflicts with the changes made by other addendum(s) that are incorporated at the same time. Changes to 102BACA are described in this document starting at Section 1.0. Italic text between square brackets provides instr

45、uctions on how to incorporate changes in a section. If a section contains subsections, and neither the section nor subsections thereof change, only the section will be identified in this document. Note that section numbers identified in this addendum correspond to the same section numbers in 102BACA

46、. Also note that new or modified text is tracked in blue in order to assist the reader. TIA-102.BACA-B-1 2 C. Addendum References This addendum references the following TIA documents. 1. Normative References 102BACA Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services,

47、Mobility Management, and RFSS Capability Polling Services, TIA-102.BACA-B, TIA, November 2012 102BACC Project 25 Inter-RF Subsystem Interface Overview, TIA-102.BACC-B, TIA, November 2011 102BACD Project 25 Inter-RF Subsystem Interface - Messages and Procedures for Supplementary Data, TIA-102.BACD-B,

48、 TIA, July 2011 102AABD Trunking Procedures, TIA-102.AABD-A, TIA, December 2008 102AABC Project 25 Trunking Control Channel Messages, TIA-102.AABC-C, TIA, October 2009 TIA-102.BACA-B-1 3 1. Introduction No change from existing text in this section of 102BACA, except for subsection 1.4 below. 1.1 Sco

49、pe No change from existing text in this section of 102BACA. 1.2 Terminology No change from existing text in this section of 102BACA. 1.3 Document Structure No change from existing text in this section of 102BACA. 1.4 Definitions Add the following new definitions in this section of 102BACA. Non-Tracking RFSS: This term is used to denote an RF Subsystem that does not track the emergency state of groups per 102AABD. A non-tracking RFSS can consider some or all SUs “sufficiently privileged” with regards to the Emergency