ISO/IEC 17417:2011

INTERNATIONAL ISO/IEC
STANDARD 17417
First edition
2011-12-01
Information technology —
Telecommunications and information
exchange between systems — Short
Distance Visible Light Communication
(SDVLC)
Technologies de l'information — Téléinformatique — Communication à
courte distance utilisant la lumière visible (SDVLC)

Reference number
©
ISO/IEC 2011
©  ISO/IEC 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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Published in Switzerland
ii © ISO/IEC 2011 – All rights reserved

Contents Page
Foreword . v
Introduction . vi
1  Scope . 1
2  Conformance . 1
3  Normative references . 1
4  Terms,definitions and abbreviations . 2
5  Conventions and notations . 6
6  General . 6
7  Physical Layer . 6
8  Transmitter and Receiver Block Diagram . 7
8.1  Transmitter to Receiver Link . 7
8.2  Data Encoding . 7
8.2.1  8B10 Data Encoding . 8
8.2.2  2B4B Data Encoding . 8
8.3  Modulation . 8
8.4  Bit Order . 8
9  Frame Formats . 8
9.1  Frame Structure overview . 9
9.2  Frame Structure Detail . 10
9.2.1  Start Indicator Structure . 10
9.2.2  Control Header Structure. 11
9.3  MAC PDU Structure . 13
9.3.1  MAC Header . 13
9.3.2  Payload . 14
9.3.3  Payload CRC . 15
9.4  Visible Frame . 15
9.4.1  Visible Pattern . 15
9.5  Cyclic Redundancy Check (CRC) . 16
10  Connection Procedure . 16
11  Association Operation Messages . 17
11.1  Association Request (AS-REQ) . 17
11.2  Association Response (AS-RSP) . 18
11.3  Association Acknowledge (AS-ACK) . 18
11.4  Disassociation Request (DAS-REQ) . 19
11.5  Disassociation Response (DAS-RSP) . 19
11.6  Disassociation Acknowledge (DAS-ACK) . 20
12  Data Burst Modes Operation . 20
12.1  Periodic Burst Mode . 20
12.1.1  Burst Request Message (BR-REQ) . 21
12.1.2  Burst Response Message (BR-RSP) . 23
12.2  Aperiodic Burst Mode . 24
12.2.1  Aperiodic Burst Request Message (ABR-REQ) . 25
12.2.2  Aperiodic Burst Response Message (ABR-RSP) . 26
13  Data Encoding Change . 28
13.1  ENC-REQ (Data Encoding Change Request) . 28
© ISO/IEC 2011 – All rights reserved iii

13.2  ENC-RSP (Data Encoding Change Response) .28

iv © ISO/IEC 2011 – All rights reserved

Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 17417 was prepared by Ecma International (as ECMA-397) and was adopted, under a special “fast-
track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its
approval by national bodies of ISO and IEC.
© ISO/IEC 2011 – All rights reserved v

Introduction
Short Distance Visible Light Communication (SDVLC) uses visible light LEDs for data communication. In most
cases, LEDs with the primary purpose of illumination will take on the secondary purpose of acting as a digital
data communication source; in other cases the LED’s primary purpose will be data communication while the
secondary purpose will be to communicate visible status to the user. With the extension of the application of
LEDs from the primary purpose of illumination to the secondary purpose of data communication, VLC can be
also applied to short range data communication.
With SDVLC, “what you see is what you send”. One possible application of SDVLC is high speed
mobile-to-mobile communication.

vi © ISO/IEC 2011 – All rights reserved

INTERNATIONAL STANDARD ISO/IEC 17417:2011(E)

Information technology — Telecommunications and information
exchange between systems — Short Distance Visible Light
Communication (SDVLC)
1 Scope
This International Standard specifies a phsical layer (PHY) and medium access control (MAC) for
communication of up to 10 cm distance with an f of 120 MHz using visual light with the wavelength between
m
380 nm and 780 nm.
In addition it specifies human-detectable brightness control that is independent of the modulation for the data
transfer.
2 Conformance
Conformant implementations:
 have both a Transmitter and a Receiver;
 use 8B10B encoding and may use 2B4B encoding;
 use an f of 120 MHz as specified in 8.3.
m
3 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO/IEC 18092:2004, Information technology — Telecommunications and information exchange between
systems — Near Field Communication — Interface and Protocol (NFCIP-1)
ISO/IEC 7498-1, Information technology — Open Systems Interconnection — Basic Reference Model: The
Basic Model
ISO/IEC 14165-251, Information technology — Fibre Channel — Part 251: Framing and Signaling (FC-FS)
ITU-T Z.100, Specification and Description Language (SDL)
RFC 791, Internet Protocol — DARPA Internet Program — Protocol Specification
© ISO/IEC 2011 – All rights reserved 1

4 Terms,definitions and abbreviations
For the purposes of this document, the terms, definitions and abbreviations given in ISO/IEC 7498-1 and the
following apply.
4.1
Ack
Acknowledge
4.2
AK
Ack/Nack
4.3
ABR-REQ
Aperiodic Burst Request
4.4
ABR-RSP
Aperiodic Burst Response
4.5
AS-ACK
Association Acknowledge
4.6
AS-REQ
Association Request
4.7
AS-RSP
Association Response
4.8
Burst Master
Burst scheduler
4.9
Burst Slave
Burst schedule follower
4.10
BR-REQ
Burst Request
4.11
BR-RSP
Burst Response
4.12
BS
Burst Start
4.13
BWS
Burst Window Size
2 © ISO/IEC 2011 – All rights reserved

4.14
CHC
Control Header CRC
4.15
CRC
Cyclic Redundancy Check
4.16
DAS-ACK
Disassociation Acknowledge
4.17
DAS-REQ
Disassociation Request
4.18
DAS-RSP
Disassociation Response
4.19
DCC-REQ
Duty Cycle Change Request
4.20
DCC-RSP
Duty Cycle Change Response
4.21
dectet
group of 10 bits (cf. octet)
4.22
DER
Data Encoding Response
4.23
Disassociatee
recipient of a DAS-REQ
4.24
Disassociator
initiator of a disassociation
4.25
DQWS
Data Quiet Window Size
4.26
ENC
Data Encoding
4.27
FL
Frame Length
4.28
f
m
Frequency of modulation clock that changes the optical output signal
© ISO/IEC 2011 – All rights reserved 3

4.29
FT
Frame Type
4.30
Initiator
initiator of an association
4.31
LEN
Length
4.32
MF
MAC Flag
4.33
MHC
MAC Header CRC
4.34
MM
Management Message
4.35
Nack
Negative Acknowledge
4.36
OOK
On-Off Keying
4.37
OP
Operation
4.38
PL
Payload Length
4.39
PDU
Protocol Data Unit
[ISO/IEC 7498-1]
4.40
PSN
PDU Sequence Number
4.41
RC
Response Code
4.42
Recipient
receiver of a frame
4 © ISO/IEC 2011 – All rights reserved

4.43
RFU
Reserved for Future Use
4.44
RID
Recipient ID
4.45
RVF
Recipient VF
4.46
SDL
Specification and Description Language (ITU-T Z.100)
4.47
SDU
Service Data Unit
[ISO/IEC 7498-1]
4.48
SDVLC
Short Distance Visible Light Communication
4.49
Sender
sender of a frame
4.50
SI
Start Indicator
4.51
SID
Sender ID
4.52
SMF
Supported Modulation Frequencies
4.53
Target
recipient of an AS-REQ
4.54
VF
Visible Fra
...