DD ENV 12795:1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Road traffic and transport telematics (RTTT). Dedicated short range communication (DSRC). DSRC data link layer. Medium access and logical link control
Hardcopy , PDF
30-05-2003
English
15-11-1997
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Contents
Title Page (Informative)
Foreword (Informative)
Document Change Control Record (Informative)
Contents (Informative)
Introduction (Informative)
Title (Normative)
1. Scope (Normative)
2. References (Normative)
3. Definitions and Abbreviations
3.1 Definitions
3.2 Abbreviations
4. Frame Format
4.1 Flag Sequence
4.2 Link Address Field
4.3 MAC Control Field
4.3.1 MAC Control Field of the Downlink
4.3.2 MAC Control Field of the Uplink
4.4 LPDU Format
4.5 Frame Check Sequence
4.6 Bit Order
4.7 Transparency
5. Address Establishment (Normative)
5.1 Broadcast SAP Establishment
5.2 Mobile Provate SAP Establishment
5.3 Fixed Private SAP Establishment
6. Medium Access Control (MAC) Sublayer (Normative)
6.1 Window Management
6.1.1 Downlink Windows
6.1.2 Uplink Windows
6.1.2.1 Private Uplink Windows
6.1.2.2 Public Uplink Windows
6.1.2.3 Public Uplink Window Selection
Mechanism
6.2 MAC Services and Primitives
6.2.1 Fixed MAC Sublayer Primitives
6.2.1.1 F-MA-DATA.request
6.2.1.2 F-MA-DATA.indication
6.2.2 Mobile MAC Sublayer Primitives
6.2.2.1 M-MA-DATA.request
6.2.2.2 M-MA-DATA.indication
6.3 MAC Elements of Procedure
6.3.1 The L bit
6.3.2 The D bit
6.3.3 The A bit
6.3.4 The R bit
6.3.5 The C/R bit
6.3.6 Medium Allocation State Variable V(A)
6.3.7 The S bit
6.3.8 Private Medium Response Timer
6.4 MAC Procedures
6.4.1 Fixed Equipment MAC Procedures
6.4.1.1 Frame Reception
6.4.1.1.1 Validity of frame
6.4.1.1.2 Information transfer
6.4.1.1.3 Private uplink window request
6.4.1.2 Frame transmission
6.4.1.2.1 Information transfer
6.4.1.2.2 Private uplink window allocation
. 6.4.1.2.3 Private uplink window
reallocation
6.4.1.2.4 Public uplink window allocation
6.4.2 Mobile Equipment MAC Procedures
6.4.2.1 Frame Reception
6.4.2.1.1 Validity of Frame
6.4.2.1.2 Information Transfer
6.4.2.1.3 Private Uplink Window Allocation
6.4.2.1.4 Public Uplink Window Allocation
6.4.2.2 Frame Transmission
6.4.2.2.1 Information Transfer
6.4.2.2.2 Private Uplink Window Request
7. Logical Link Control (LLC) Sublayer (Normative)
7.1 LLC Sublayer Service Specifications
7.1.1 Overview if Interactions
7.1.2 Detailed Service Specifications
7.1.2.1 DL-UNITDATA.request
7.1.2.2 DL-UNITDATA.indication
7.1.2.3 DL-DATA-ACK.request
7.1.2.4 DL-DATA-ACK.indication
7.1.2.5 DL-DATA-ACK-STATUS.indication
7.1.2.6 DL-REPLY.request
7.1.2.7 DL-REPLY.indication
7.1.2.8 DL-REPLY-STATUS.indication
7.1.2.9 DL-REPLY-UPDATE.request
7.1.2.10 DL-REPLY-UPDATE-STATUS.indication
7.2 LPDU Structure
7.2.1 LPDU Format
7.2.2 Elements of the LPDU
7.2.2.1 Address Field
7.2.2.2 Command/Response Bit
7.2.2.3 LLC Control Field
7.2.2.4 Information Field
7.2.2.5 Bit Order
7.2.2.6 Invalid LPDU
7.3 LLC Types of Procedure
7.4 LLC Elements of Procedure
7.4.1 Control Field Format
7.4.2 Control Field Parameters
7.4.2.1 Type 3 Operation Parameters
7.4.3 Commands and Responses
7.4.3.1 Type 1 Operation Commands
7.4.3.2 Type 3 Operation Commands and
Responses
7.4.3.3 Type 3 Operation Response
Information Field
7.5 LLC Description of the Procedures
7.5.1 Procedure for Addressing
7.5.1.1 Type 1 Procedure
7.5.1.2 Type 3 Procedure
7.5.2 Procedure for the Use of the P/F Bit
7.5.2.1 Type 1 Procedure
7.5.2.2 Type 3 Procedure
7.5.3 Procedures for Link Set-Up
7.5.4 Procedures for Information Transfer
7.5.4.1 Type 1 Procedure
7.5.4.2 Type 3 Procedures
7.5.4.2.1 Transmitting ACN Commands
7.5.4.2.2 Receiving ACN Commands
7.5.4.2.2.1 Non-duplicate ACN Command
7.5.4.2.2.2 Duplicate ACN Commands
7.5.4.2.3 Transmitting ACN Responses
7.5.4.2.4 Receiving Acknowledgement
7.5.5 List of Logical Data Link Parameters
7.5.5.1 Maximum Number of Octets in a
PDU, N10
7.5.5.2 Minimum Number of Octets in a PDU
7.5.5.3 Maximum Number of Transmissions,
N11
7.5.5.4 Acknowledgement Time, N13
7.5.6 Precise Description of Procedures
7.5.6.1 Type 1 Component
7.5.6.1.1 State Description
7.5.6.1.2 Event Description
7.5.6.1.3 Action Description
7.5.6.2 Type 3 Receiver Component Overview
7.5.6.2.1 State Description
7.5.6.2.2 Function Description
7.5.6.2.3 Event Description
7.5.6.2.4 Action Description
7.5.6.3 Type 3 Sender Component
7.5.6.3.1 State Description
7.5.6.3.2 Event Description
7.5.6.3.3 Action Description
Annex (Informative)
Annex A Interlayer Management
Annex A.1 Elements of Beacon Service Table
Annex B Link Layer Control
Annex B.1 LAYER 2 Link Overhead
Annex C Address Establishment
Caters for on-board units based on transponder as well as transceiver technologies. Allows for mixed time, frequency and space division multiple access approaches.
| Committee |
EPL/278
|
| DocumentType |
Standard
|
| Pages |
58
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ENV 12795 : 1997 | Identical |
| ISO/IEC 4335:1993 | Information technology —- Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Elements of procedures |
| ISO/IEC 3309:1993 | Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Frame structure |
| ISO/IEC 8802-2:1998 | Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Specific requirements — Part 2: Logical link control |
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