1、 TIA STANDARD Project 25 Identity Extensions to Link Control Word Formats TIA-102.AABF-A-2 (Addendum 2 to TIA-102.AABF-A) May 2007 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance TIA-102.AABF-A-2 Approved: Ma
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28、ose patents that are brought to its attention. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A-2 iii TABLE OF CONTENTS 1 INTRODUCTION 1 2 Scope . 1 3 Document Rev
29、ision History 1 4 Symbols, Abbreviations, Terms, Definitions and Mnemonics . 1 4.1.1 Symbols . 1 4.1.2 Abbreviations . 1 4.1.3 Terms . 1 4.1.4 Definitions 1 4.1.5 Mnemonics. 2 5 Normative References 2 6 Link Control Word Identity Overview 2 7 Link Control Word Formats. 3 7.1 Implicit MFID LC Message
30、 Basic Format 3 7.2 Explicit MFID LC Message Basic Format3 7.3 Link Control Word Formats .3 7.3.1 Group Voice Channel User 4 7.3.2 Group Voice Channel Update 4 7.3.3 Unit to Unit Voice Channel User 4 7.3.4 Group Voice Channel Update Explicit 4 7.3.5 Unit to Unit Answer Request 5 7.3.6 Telephone Inte
31、rconnect Voice Channel User 5 7.3.7 Telephone Interconnect Answer Request 5 7.3.8 Call Termination/Cancellation 5 7.3.9 Group Affiliation Query. 5 7.3.10 Unit Registration Command. 6 7.3.11 Unit Authentication Command . 6 7.3.12 Status Query 6 7.3.13 System Service Broadcast. 6 7.3.14 Secondary Cont
32、rol Channel Broadcast . 6 7.3.15 Adjacent Site Status Broadcast . 7 7.3.16 RFSS Status Broadcast. 7 7.3.17 Network Status Broadcast . 7 7.3.18 Status Update 7 7.3.19 Message Update 7 7.3.20 Call Alert. 7 7.3.21 Extended Function Command . 8 Copyright Telecommunications Industry Association Provided
33、by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A-2 iv 7.3.22 Channel Identifier Update 8 7.3.23 Protection Parameter Broadcast 8 7.3.24 Secondary Control Channel Broadcast Explicit 8 7.3.25 Adjacent Site Status Broadcast E
34、xplicit 8 7.3.26 Channel Identifier Update Explicit. 8 7.3.27 RFSS Status Broadcast Explicit 8 7.3.28 Network Status Broadcast Explicit 8 7.3.29 Unit to Unit Voice Channel User Extended. 9 7.3.30 Status Update Source ID Extension Required 9 7.3.31 Message Update Source ID Extension Required . 10 7.3
35、.32 Source ID Extension 10 7.4 Standard LC Field Definitions11 7.5 Link Control Word Usages 12 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A-2 1 1 INTRODUCTION
36、The purpose of this addendum is to update TIA-102AABF-A “Link Control Word Formats and Messages” (Ref. 1). These enhancements provide for extended identification of the source of a call, status update, message update or call alert in cases where implicit identification of the source is insufficient.
37、 The outline of the addendum is substantially the same as that of its parent, with Sections 2 and 3 describing the scope and revision history of the document, respectively; Section 4 defining extensions to terms and abbreviations and Section 5 detailing normative references. Section 6 overviews the
38、messages defined herein, and Section 7 defines the message formats. 2 Scope As an addendum, this document only includes information relevant to the addition of and changes to the referenced parent document. The reader is referred to Ref. 1 for all other information pertinent to any topic addressed h
39、erein. 3 Document Revision History Date Document No. Comments 11-Aug-04 N/A Initial Presentation to TR8.16 in resolution of certain identified problems raised by inter-system roaming with identity maintenance. May-05 N/A Incorporated changes for Motorola Comments to 8.10 (Mot comments on Prop Chgs t
40、o LCW 04.19.05.doc) Nov-06 N/A Incorporated final resolutions for Motorola comments to 8.10 4 Symbols, Abbreviations, Terms, Definitions and Mnemonics 4.1.1 Symbols This addendum uses the same nomenclature as Ref. 1. 4.1.2 Abbreviations This addendum introduces no abbreviations different from Ref. 1
41、. 4.1.3 Terms This addendum introduces no terms different from Ref. 1. 4.1.4 Definitions This addendum introduces no definitions different from Ref. 1. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted withou
42、t license from IHS-,-,-TIA-102.AABF-A-2 2 4.1.5 Mnemonics This addendum introduces no mnemonics different from Ref. 1. 5 Normative References 1 TIA-102.AABF-A APCO Project 25 Link Control Word Formats and Messages, December 16, 2004. 6 Link Control Word Identity Overview The Link Control Word is a p
43、ortion of the voice message as defined in Ref 1 and may be present in Logical Link Data Unit 1 (LDU1) and the Expanded Terminator Data Unit (ETDU) of the Common Air Interface. In Ref. 1, the term “Source Address” is equivalent to the Working Unit ID (WUID) of a subscriber unit originating a transact
44、ion. The WUID is assigned during registration, and therefore may change when registration changes. Generally, if the WACN and System ID match that of the particular system being used, the WUID is the 24-bit Unit ID portion of the SUID. Under these circumstances, the “Source Address” uniquely identif
45、ies a particular subscriber, because the SUID of the subscriber can be derived from the Source Address and knowledge of the WACN and System. When, however, the WUID is assigned to a subscriber from outside the current system, it may not, and generally does not, match the 24-bit Unit ID portion of th
46、e SUID. Therefore, an explicit identification of the unit is required for certain messages. In particular, in the outbound direction, an extended ID is required whenever the full APCO source identifier cannot be computed by concatenating the working id with the system and network IDs of the transmit
47、ting RFSS. Likewise, in the inbound direction, extended forms must be used whenever the full APCO destination identifier cannot be similarly derived. This addendum contains modifications to the LCW messages to provide for that extended identification when required. Copyright Telecommunications Indus
48、try Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.AABF-A-2 3 7 Link Control Word Formats 7.1 Implicit MFID LC Message Basic Format The implicit MFID format of the link control message shall be as defined in Ref. 1. 7.2 Explicit MFID LC Message Basic Format The explicit MFID format of the link control message shall be as defined in Ref. 1. 7.3 Link Control Word Formats The following sections contain definitions of LC messages that are present in Ref. 1 and are modified by this
