Road vehicles - Vehicle to grid communication interface - Part 8: Physical layer and data link layer requirements for wireless communication (ISO 15118-8:2020)

This document specifies the requirements of the physical and data link layer of a wireless High Level
Communication (HLC) between Electric Vehicles (EV) and the Electric Vehicle Supply Equipment
(EVSE). The wireless communication technology is used as an alternative to the wired communication
technology as defined in ISO 15118-3.
It covers the overall information exchange between all actors involved in the electrical energy exchange.
ISO 15118 (all parts) are applicable for conductive charging as well as Wireless Power Transfer (WPT).
For conductive charging, only EVSEs compliant with “IEC 61851-1 modes 3 and 4” and supporting HLC
are covered by this document. For WPT, charging sites according to IEC 61980 (all parts) and vehicles
according to ISO 19363 are covered by this document.

Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation - Teil 8: Anforderungen an physikalische und Datenverarbeitungsschnittstelle für die drahtlose Kommunikation (ISO 15118-8:2020)

Véhicules routiers - Interface de communication entre véhicule et réseau électrique - Partie 8: Exigences relatives à la couche physique et à la couche de liaison entre les données pour la communication sans fil (ISO 15118-8:2020)

Le présent document définit les exigences de la couche physique et de la couche de liaison de données d'une communication sans fil de haute niveau (HLC) entre les véhicules électriques (VE) et les équipements d'alimentation des véhicules électriques (EVSE). La technologie de communication sans fil est utilisée comme alternative à la technologie de communication filaire telle que définie dans l'ISO 15118-3.
Il couvre l'échange global d'information entre tous les acteurs impliqués dans l'échange d'énergie électrique. L'ISO 15118 (toutes les parties) s'applique à la charge par conduction ainsi qu'au transfert d'énergie sans fil (WPT).
Concernant la charge conductive, seuls les EVSE conformes à «l'IEC 61851-1 modes 3 et 4» et supportant la HLC sont couverts par le présent document. Concernant le WPT, les sites de charge conformes à l'IEC 61980 (toutes les parties) et les véhicules conformes à l'ISO 19363 sont traités dans le présent document.

Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 8. del: Zahteve za fizične in podatkovne povezovalne plasti za brezžično komunikacijo (ISO 15118-8:2020)

General Information

Status
Published
Public Enquiry End Date
31-Jul-2020
Publication Date
11-Oct-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Oct-2020
Due Date
13-Dec-2020
Completion Date
12-Oct-2020

RELATIONS

Buy Standard

Standard
SIST EN ISO 15118-8:2020 - BARVE na PDF-str 32,33,34,35,36
English language
41 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 15118-8:2020
01-december-2020
Nadomešča:
SIST EN ISO 15118-8:2019
Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 8. del: Zahteve

za fizične in podatkovne povezovalne plasti za brezžično komunikacijo (ISO 15118-

8:2020)

Road vehicles - Vehicle to grid communication interface - Part 8: Physical layer and data

link layer requirements for wireless communication (ISO 15118-8:2020)

Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation -

Teil 8: Anforderungen an physikalische und Datenverarbeitungsschnittstelle für die

drahtlose Kommunikation (ISO 15118-8:2020)

Véhicules routiers - Interface de communication entre véhicule et réseau électrique -

Partie 8: Exigences relatives à la couche physique et à la couche de liaison entre les

données pour la communication sans fil (ISO 15118-8:2020)
Ta slovenski standard je istoveten z: EN ISO 15118-8:2020
ICS:
35.100.05 Večslojne uporabniške Multilayer applications
rešitve
43.040.15 Avtomobilska informatika. Car informatics. On board
Vgrajeni računalniški sistemi computer systems
SIST EN ISO 15118-8:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 15118-8:2020
---------------------- Page: 2 ----------------------
SIST EN ISO 15118-8:2020
EN ISO 15118-8
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 43.120 Supersedes EN ISO 15118-8:2019
English Version
Road vehicles - Vehicle to grid communication interface -
Part 8: Physical layer and data link layer requirements for
wireless communication (ISO 15118-8:2020)

Véhicules routiers - Interface de communication entre Straßenfahrzeuge - Kommunikationsschnittstelle

véhicule et réseau électrique - Partie 8: Exigences zwischen Fahrzeug und Ladestation - Teil 8:

relatives à la couche physique et à la couche de liaison Anforderungen an physikalische und

entre les données pour la communication sans fil (ISO Datenverbindungsschnittstelle für die drahtlose

15118-8:2020) Kommunikation (ISO 15118-8:2020)
This European Standard was approved by CEN on 20 September 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15118-8:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 15118-8:2020
EN ISO 15118-8:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 15118-8:2020
EN ISO 15118-8:2020 (E)
European foreword

This document (EN ISO 15118-8:2020) has been prepared by Technical Committee ISO/TC 22 "Road

vehicles" in collaboration with Technical Committee CEN/TC 301 “Road vehicles” the secretariat of

which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by March 2021, and conflicting national standards shall

be withdrawn at the latest by March 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 15118-8:2019.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 15118-8:2020 has been approved by CEN as EN ISO 15118-8:2020 without any

modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 15118-8:2020
---------------------- Page: 6 ----------------------
SIST EN ISO 15118-8:2020
INTERNATIONAL ISO
STANDARD 15118-8
Second edition
2020-09
Road vehicles — Vehicle to grid
communication interface —
Part 8:
Physical layer and data link
layer requirements for wireless
communication
Véhicules routiers — Interface de communication entre véhicule et
réseau électrique —
Partie 8: Exigences relatives à la couche physique et à la couche de
liaison entre les données pour la communication sans fil
Reference number
ISO 15118-8:2020(E)
ISO 2020
---------------------- Page: 7 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Abbreviated terms .............................................................................................................................................................................................. 2

5 Conventions ............................................................................................................................................................................................................... 3

5.1 Definition of OSI based services ............................................................................................................................................... 3

5.2 Requirement structure ..................................................................................................................................................................... 3

6 System architecture ........................................................................................................................................................................................... 3

7 Wireless communication requirements ...................................................................................................................................... 4

7.1 Overview ...................................................................................................................................................................................................... 4

7.2 SECC requirements .............................................................................................................................................................................. 5

7.2.1 General...................................................................................................................................................................................... 5

7.2.2 WLAN technology ........................................................................................................................................................... 5

7.2.3 WLAN frequency and channel .............................................................................................................................. 6

7.2.4 SECC channel scanning and selection ............................................................................................................ 8

7.2.5 Quality of service ............................................................................................................................................................. 9

7.2.6 Association support ...................................................................................................................................................10

7.2.7 Layer 2 interfaces .........................................................................................................................................................13

7.2.8 Pairing ....................................................................................................................................................................................14

7.3 EVCC requirements ..........................................................................................................................................................................14

7.3.1 General...................................................................................................................................................................................14

7.3.2 WLAN technology ........................................................................................................................................................14

7.3.3 WLAN frequency and channel ...........................................................................................................................15

7.3.4 Quality of service ..........................................................................................................................................................15

7.3.5 Association support ...................................................................................................................................................15

7.3.6 Layer 2 interfaces .........................................................................................................................................................17

7.4 Security .......................................................................................................................................................................................................18

Annex A (informative) Mounting location of wireless communication module and antenna ...............19

Annex B (informative) Interference scan and auto channel selection example ...................................................23

Annex C (informative) Introduction of service available area ................................................................................................26

Annex D (informative) National regulations in usage of U-NII bands .............................................................................28

Bibliography .............................................................................................................................................................................................................................33

© ISO 2020 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared jointly by Technical Committee ISO/TC 22, Road vehicles, Subcommittee

SC 31, Data communication, and Technical Committee IEC/TC 69, Electric road vehicles and electric

industrial trucks in collaboration with the European Committee for Standardization (CEN) Technical

Committee CEN/TC 301, Road vehicles, in accordance with the Agreement on technical cooperation

between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 15118-8:2018) of which it constitutes a

minor revision. The changes compared to the previous edition are as follows:
— DFS and/or TPC are now used instead of only DFS, see 7.2.3 and 7.3.3;
— correction of requirement V2G8-034;
— editorial corrections.
A list of all parts in the ISO 15118 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
Introduction

The pending energy crisis and necessity to reduce greenhouse gas emissions has led the vehicle

manufacturers to a very significant effort to reduce the energy consumption of their vehicles. They

are presently developing vehicles partly or completely propelled by electric energy. Those vehicles will

reduce the dependency on oil, improve the global energy efficiency and reduce the total CO emissions

for road transportation if the electricity is produced from renewable sources. To charge the batteries of

such vehicles, a specific charging infrastructure is required.

Much of the standardization work on dimensional and electrical specifications of the charging

infrastructure and the vehicle interface is already treated in the relevant ISO or IEC groups. However,

the question of information transfer between the EV and the EVSE has not been treated sufficiently.

Such communication is necessary for the optimization of energy resources and energy production

systems so that vehicles can recharge in the most economic or most energy efficient way. It is also

required to develop efficient and convenient billing systems in order to cover the resulting micro-

payments. The necessary communication channel may serve in the future to contribute to the

stabilization of the electrical grid, as well as to support additional information services required to

operate electric vehicles efficiently and economically.

In ISO 15118-3, the messages exchanged between the vehicle and the infrastructure are transported

by the cable used for power transfer. With the inception of wireless power transfer technologies and

the tremendous development of wireless communication in our societies, the need for a wireless

communication between vehicle and charging infrastructure becomes imperative. This is the main

focus of this document. The relevant information on use-case definitions and network and application

protocol requirements can be found in ISO 15118-1 and ISO 15118-2, respectively.
© ISO 2020 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 15118-8:2020
---------------------- Page: 12 ----------------------
SIST EN ISO 15118-8:2020
INTERNATIONAL STANDARD ISO 15118-8:2020(E)
Road vehicles — Vehicle to grid communication
interface —
Part 8:
Physical layer and data link layer requirements for
wireless communication
1 Scope

This document specifies the requirements of the physical and data link layer of a wireless High Level

Communication (HLC) between Electric Vehicles (EV) and the Electric Vehicle Supply Equipment

(EVSE). The wireless communication technology is used as an alternative to the wired communication

technology as defined in ISO 15118-3.

It covers the overall information exchange between all actors involved in the electrical energy exchange.

ISO 15118 (all parts) are applicable for conductive charging as well as Wireless Power Transfer (WPT).

For conductive charging, only EVSEs compliant with “IEC 61851-1 modes 3 and 4” and supporting HLC

are covered by this document. For WPT, charging sites according to IEC 61980 (all parts) and vehicles

according to ISO 19363 are covered by this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 15118-1, Road vehicles — Vehicle to grid communication interface — Part 1: General information and

use-case definition

ISO 15118-2:2014, Road vehicles — Vehicle-to-Grid Communication Interface — Part 2: Network and

application protocol requirements

ISO 15118-3:2015, Road vehicles — Vehicle to grid communication interface — Part 3: Physical and data

link layer requirements

ISO 19363, Electrically propelled road vehicles — Magnetic field wireless power transfer — Safety and

interoperability requirements

IEEE 802.11-2012, IEEE Standard for Information technology — Telecommunications and information

exchange between systems Local and metropolitan area networks — Specific requirements Part 11:

Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 15118-1, ISO 15118-2 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
© ISO 2020 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
3.1
access point

wireless communication device that allows the user to connect to other wireless or wired

communication devices
Note 1 to entry: See IEEE 802.11-2012.
3.2
charging site
area with one or more EVSEs controlled by one SECC
3.3
station
STA

logical entity that is a singly addressable instance of a medium access control and physical layer

interface to the wireless medium which does not act as an access point (3.1)
3.4
IEEE 802.11n
IEEE 802.11 where the instances are HT APs (3.1) or HT STAs (3.3)

Note 1 to entry: The features of an HT STA are summarized in IEEE 802.11-2012, 4.3.10. An HT AP is an access

point implementing the same set of features as an HT STA.
3.5
layer 2 link establishment

connection establishment indicated by a successful association/reassociation process as described in

IEEE 802.11-2012, 10.3.5.2 and 10.3.5.3
3.6
service available area

restricted area around a charging station in which an SECC provides a connecting service with an

ensured quality
4 Abbreviated terms
AP Access Point
AWC Automotive Wireless Communication
CS Charging Site
DFS Dynamic Frequency Selection
EDCA Enhanced Distributed Channel Access
EID Element Identifier
EMC Electromagnetic Compatibility
ETT Energy Transfer Type
EV Electric Vehicle
EVCC Electric Vehicle Communication Controller
EVSE Electric Vehicle Supply Equipment
2 © ISO 2020 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
HLC High Level Communication
HLE Higher Layer Entities
HT High Throughput
ISM Industrial, Scientific and Medical
MAC Medium Access Control
SAP Service Access Point
SECC Supply Equipment Communication Controller
SSID Service Set Identifier
TPC Transmit Power Control
U-NII Unlicensed National Information Infrastructure
VSE Vendor Specific Element
WLAN Wireless Local Area Network
WPT Wireless Power Transfer
5 Conventions
5.1 Definition of OSI based services

This document is based on the OSI service conventions (see ISO/IEC 10731) for the individual layers

specified in this document.
5.2 Requirement structure

Each individual requirement included in this document has a unique code, as follows:

“[V2G8-XXX] Requirement text”
— where “V2G8” represents this document,
— where XXX represents the individual requirement number, and
— where “requirement text” includes the actual text of the requirement.
EXAMPLE [V2G8-999] This shall be an example requirement.
6 System architecture

This document is organized along architectural lines, same as in ISO 15118-3 emphasizing the large-scale

separation of the system into two parts: the MAC sub layer of the data link layer and the physical layer.

These layers are intended to correspond closely to the lowest layers of the ISO/IEC model for open systems

(see ISO/IEC 7498-1). Figure 1 shows the relationship of this document to the OSI reference model.

© ISO 2020 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)
Figure 1 — Overview of ISO 15118-1, ISO 15118-2, and this document in the
ISO/IEC OSI reference model

This document defines requirements applicable to layer 1 and 2, including the V2G standardized service

primitive interface for wireless communication, according to the OSI layered architecture. Layers 3 to 7

are specified in ISO 15118-2.

This document covers both conductive charging and WPT use-cases using wireless communication. If

not defined differently, requirements apply for both conductive charging and WPT.

7 Wireless communication requirements
7.1 Overview

This clause gives requirements for the wireless communication module on both the EVCC and the SECC

side. EVCC and SECC make use of wireless local area network (WLAN) as specified in IEEE 802.11-

2012 for wireless communication. More specifically, they implement the feature set of an HT STA or

HT AP (which were originally specified in IEEE 802.11n-2009 and are thus commonly referred to as

IEEE 802.11n), and operate in the 2,4 GHz and 5 GHz bands.
4 © ISO 2020 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)

These frequency bands are ISM and U-NII bands where both other wireless communication technologies

®1) ®2)

(e.g. Bluetooth , ZigBee , baby phone), and non-communication systems (e.g. microwave ovens,

radar systems) can cause interference with the WLAN communication channels. Therefore, the

requirements in this document are designed in a way where not only system interoperability is ensured,

but also the communication robustness is hardened. In addition, manufacturers and operators need to

make sure that the system is configured for robustness. For example, particular care has to be given to

selecting an appropriate operating channel to avoid the above-mentioned interference.

This document covers various use-cases in relationship to wireless communication for conductive

charging and WPT, considering different range requirements for the communication channel.

— Discovery: the EVCC has entered the communication range of the SECC(s), then associates to an

appropriate SECC to start HLC for further steps (typically 5 m to 30 m range).

— Fine positioning: alignment of the primary and secondary devices for efficient power transfer in

case of WPT and alignment of the connectors of EV and EVSE for power transfer in case of automatic

connection for conductive charging (typically 10 cm to 5 m range).

— Charging control: for example, power request from vehicle to EVSE (typically 5 cm to 5 m range).

Use-case details are given in ISO 15118-1.

The distance between EVCC and SECC for charging control depends on the installation location of

the wireless communication modules and antennae. This is out of scope of this document and vendor

specific. As the distance influences the reliability of the communication link, manufacturers are

encouraged to pay particular attention to the choice of mounting location. Additional parameters to be

considered and some example setups are given in Annex A.

For testing and evaluating an installed system, a concept of service available area has been developed

and detailed in Annex C.
7.2 SECC requirements
7.2.1 General

The wireless communication module of the SECC shall fulfil the requirements described in this

subclause to ensure interoperability between the SECC and EVCC with adequate communication

robustness for V2G applications.
7.2.2 WLAN technology
[V2G8-001] The wireless communication module of the SECC shall use IEEE 802.11
(see IEEE 802.11-2012) compliant wireless communication technology.
[V2G8-002] The wireless communication module of the SECC shall be configured as
access point (AP) according to IEEE 802.11.

[V2G8-003] The wireless communication module of the SECC shall support the mandatory

feature set of an HT AP according to IEEE 802.11-2012 on all the channels that it

supports.

NOTE 1 An HT AP is an access point implementing the same set of features as an HT STA (see IEEE 802.11-

2012, 4.3.10).

1) Bluetooth is the trademark of a product supplied by Bluetooth Special Interest Group. This information is

given for the convenience of users of this document and does not constitute an endorsement by ISO of the product

named. Equivalent products may be used if they can be shown to lead to the same results.

2) ZigBee is the trademark of a product supplied by Zigbee alliance. This information is given for the convenience

of users of this document and does not constitute an endorsement by ISO of the product named. Equivalent products

may be used if they can be shown to lead to the same results.
© ISO 2020 – All rights reserved 5
---------------------- Page: 17 ----------------------
SIST EN ISO 15118-8:2020
ISO 15118-8:2020(E)

The SECC may support other variants of IEEE 802.11 technology, as long as EVCCs can always establish

connections via IEEE 802.11n. An example of such a technology is the very high throughput PHY

(see IEEE 802.11ac-2013).
[V2G8-004] The beacon period of the SECC shall not exceed T_beacon = 105 ms.

NOTE 2 The beacon period is the time between two successive transmissions of the beacon frame. It is

measured in time units (1 TU = 1 024 µs). A typical value would be T_beacon = 100 TU.

NOTE 3 T_beacon is the value of the beacon interval field as described in IEEE 802.11-2012, 8.4.1.3.

7.2.3 WLAN frequency and channel
There are two frequency bands with
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.