1、 TIA STANDARD Wideband Air Interface Media Access Control Radio Link Adaptation (MAC/RLA) Layer Specification TIA-902.BAAC-A (Upgrade and Revision of TIA-902.BAAC) February 2007 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic In
2、dustries Alliance ANSI/TI A-902.BAAC-A Approved: February 12, 2007 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Publications are designed
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25、rking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-WAI MAC/RLA Layer Specification TIA-902.BAAC-A i Foreword (This foreword is not part
26、 of this standard.) This document has been published by the Telecommunications Industry Association (TIA) in accordance with the terms and conditions provided for in a Memorandum of Understanding (MoU) executed by and between the TIA, the Associated Public-Safety Communications Officials (APCO), the
27、 National Association of State Telecommunications Directors (NASTD), and the various agencies of the Federal government (FED). This TIA Standard is being promulgated and will be maintained by the TR-8.5 Signaling and Data Transmission committee, and working groups under the sponsorship of the Teleco
28、mmunications Industry Association. This document has been published as a TIA Standard because it contains useful technical information on emerging digital techniques for Land Mobile Radio Service. In particular, it describes the wideband air interface media access control layer technology. Generally
29、, the wideband air interface been developed by TIA TR-8.5 to be consistent with the Statement of Requirements adopted by the National Coordination Committees Interoperability Subcommittee, WG6 Wideband Data. This document references that the primary user needs document will be “APCO Project 25/34 St
30、atement of Requirements (P34SOR)”. This media access control / radio link adaptation layer specification provides a standard for the definition and control transmission high-speed digital information over 50, 100, and 150 kHz bandwidth physical radio media. The TIA makes no claims as to the applicab
31、ility of the information contained in this document for any purpose although it is believed that the information will prove to be invaluable to designers of wideband data compliant equipment. Some aspects of the specifications contained in this document may not have been fully operationally tested;
32、however, a great deal of time and good faith effort has been invested in the preparation of this document to ensure the accuracy of the information it contains. While all reasonable efforts have been made to ensure the accuracy of this document, it should be understood that significant work remains
33、in fully developing the standard series and this document will be updated as necessary. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-902.BAAC-A WAI MAC/RLA Layer Specific
34、ation 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 those claims or any paten
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36、nts have been identified in accordance with the TIA intellectual property rights policy: Motorola US 5,185,796; Encryption Synchronization Combined with Encryption Key Identification Motorola US 5,559,807; Power Amplifier Linearization in a TDMA Mobile Radio System TIA shall not be responsible for i
37、dentifying 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. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproductio
38、n or networking permitted without license from IHS-,-,-WAI MAC/RLA Layer Specification TIA-902.BAAC-A iii TABLE OF CONTENTS 1. SCOPE1 2. TERMS.3 3. GENERAL MAC DESCRIPTION 5 3.1 INTERFACE TO PHYSICAL LAYER.5 3.2 INTERFACE TO LOGICAL LINK CONTROL (LLC) LAYER5 3.3 INFORMATION FLOW THROUGH MAC/RLA6 3.4
39、 LOWER WAI LOGICAL PROTOCOL MODEL .7 3.5 TDM FRAME STRUCTURE .8 3.5.1 Slots .8 3.5.2 Frames.9 3.5.3 Multiframe.9 3.5.4 Hyperframe9 3.5.5 Superframe 9 3.6 SLOT BLOCKING STRUCTURE.9 3.6.1 MAC Slot Header Block (MHBK) .9 3.6.2 MAC Random Access Block (MRBK)9 3.6.3 MAC Address Access Block (MABK) 9 3.6.
40、4 MAC Basic Block (MBBK) 10 3.6.5 MAC Signaling Block (MSBK) 10 3.6.6 MAC Data Block (MDBK).10 3.7 LOGICAL CHANNEL DESCRIPTIONS .11 3.7.1 Packet Data Channel (PDCH) 11 3.7.2 Random Access Channel (RACH) .11 3.7.3 Slot Information Channel (SICH)11 3.7.4 Slot Signaling Channels (SSCH) .12 3.7.5 Broadc
41、ast Control Channel (BCCH) 12 3.7.6 Mapping of Logical Channels to MAC Blocks 13 3.8 MAC BLOCK STRUCTURE .14 3.8.1 MAC Data Blocks (MDBKs) .14 3.8.2 MAC Random & Address Access Blocks (MRBK & MABK).14 3.8.3 Outbound FNE Block Sizing15 3.8.4 Inbound FNE Reserved Access Block Sizing.15 3.8.5 Random Ac
42、cess Block Sizing.16 3.8.6 Direct Configuration Block Sizing 16 3.9 ADDRESSING MODES AND STRUCTURE 17 3.9.1 FNE Configurations 17 3.9.2 Repeated Configurations.17 3.9.3 Direct Configurations17 3.10 SYNCHRONIZATION .17 3.11 ENCRYPTION.17 3.12 LINEARIZATION18 3.12.1 FNE Configurations .18 3.12.2 Direc
43、t Configurations.18 3.13 ENERGY CONSERVATION 18 3.14 TRANSMIT POWER CONTROL .18 3.15 TIME ADVANCE 19 3.16 RADIO LINK ADAPTATION 19 3.17 SCRAMBLING 19 3.17.1 FNE Configuration .19 3.17.2 Direct Configurations.20 3.18 CHANNEL ACCESS20 Copyright Telecommunications Industry Association Provided by IHS u
44、nder license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-902.BAAC-A WAI MAC/RLA Layer Specification iv 4. MAC OPERATION FOR FNE CONFIGURATIONS . 21 4.1 SYNCHRONIZATION. 21 4.1.1 TDM Synchronization. 21 4.1.2 Encryption Synchronization 21 4.1.3 BCCH
45、Operation 21 4.2 SCRAMBLING . 22 4.2.1 BCCH Slot Scrambling. 22 4.2.2 Normal Slot Scrambling . 22 4.3 MAC LAYER STATES. 23 4.3.1 Closed State 25 4.3.2 Link Management (Link_Mgmt) State 25 4.3.3 Open-Idle State. 25 4.3.4 Open-RACH Reservation (Open-RACH_RSVN) State . 26 4.3.5 Open-Active Inbound (Ope
46、n-Active_IB) State 26 4.3.6 Open-SSCH Reservation (Open-SSCH_RSVN) State . 27 4.3.7 Open-Automatic Reservation (Open-Auto_RSVN) State 27 4.3.8 MRC MAC State Procedures and Sub-States . 27 4.3.9 MRC MAC State Event Matrix 33 4.3.10 FNE MAC State Event Matrix 34 4.3.11 Outbound Transmissions . 36 4.4
47、RANDOM ACCESS PROCEDURE (RAP) 37 4.4.1 Definition of Random Access Parameters 37 4.5 SAC ALLOCATION AND TIME ADVANCE PROCEDURES . 38 4.5.1 MRC Actions. 38 4.5.2 FNE Actions 38 4.6 RESOURCE MANAGEMENT PROCEDURES. 40 4.6.1 Slot Based Resource Management Operation 40 4.6.2 Block Based Reservation Manag
48、ement Operation . 43 4.7 POWER CONTROL PROCEDURES 46 4.7.1 Open Loop Power Control (OLPC) 46 4.7.2 Closed Loop Power Control (CLPC) 46 4.8 MRC TO FNE TRANSMISSION PROCEDURES 47 4.8.1 MAC PDCH/SSCH Transmission Example 47 4.9 FNE TO MRC TRANSMISSION PROCEDURES 48 4.9.1 MAC PDCH/SSCH Transmission Exam
49、ple 48 5. MAC OPERATION FOR DIRECT CONFIGURATIONS 49 5.1 CHANNEL ACCESS. 49 5.1.1 CSMA for LLC Data and Signaling Transmission . 49 5.1.2 Random Back off “U” 50 5.1.3 Reserved Access for LLC Response Transmission 50 5.2 ADDRESS ALLOCATION 50 5.3 ENCRYPTION SYNCHRONIZATION. 50 5.4 MRC TO MRC TRANSMISSION PROCEDURES. 51 5.4.1 MAC PDCH Transmission Examp
