EN 62827-2:2017

SLOVENSKI STANDARD
01-april-2018
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Wireless power transfer - Management - Part 2: Multiple device control management
(IEC 62827-2:2017)
Drahtlose Energieübertragung - Management - Teil 2: Mehrfachgeräte
Steuerungsmanagemen (IEC 62827-2:2017)
Transfert de puissance sans fil - Gestion - Partie 2: Gestion du contrôle de dispositifs
multiples (IEC 62827-2:2017)
Ta slovenski standard je istoveten z: EN 62827-2:2017
ICS:
29.240.99 'UXJDRSUHPDY]YH]L] Other equipment related to
RPUHåML]DSUHQRVLQ power transmission and
GLVWULEXFLMRHOHNWULþQHHQHUJLMH distribution networks
35.240.99 8SRUDEQLãNHUHãLWYH,7QD IT applications in other fields
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62827-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2017
ICS 29.240.99; 33.160.99; 35.100.01

English Version
Wireless power transfer - Management - Part 2: Multiple device
control management
(IEC 62827-2:2017)
Transfert de puissance sans fil - Gestion - Partie 2: Gestion Drahtlose Energieübertragung - Management - Teil 2:
du contrôle de dispositifs multiples Mehrfachgeräte Steuerungsmanagemen
(IEC 62827-2:2017) (IEC 62827-2:2017)
This European Standard was approved by CENELEC on 2017-07-24. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62827-2:2017 E
European foreword
The text of document 100/2900/FDIS, future edition 1 of IEC 62827-2, prepared by Technical
Area 15 "Wireless power transfer" of IEC/TC 100 "Audio, video and multimedia systems and
equipment" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be (dop) 2018-04-24
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-07-24
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62827-2:2017 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 62827-1 -  Wireless power transfer - Management - EN 62827-1 -
Part 1: Common components
IEC 62827-2 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
colour
inside
Wireless power transfer – Management –

Part 2: Multiple device control management

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.99; 33.160.99; 35.100.01 ISBN 978-2-8322-4445-6

– 2 – IEC 62827-2:2017 © IEC 2017

CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 9
3.1 Definitions. 9
3.2 Abbreviated terms . 11
4 Overview . 11
5 Functionalities . 13
5.1 General . 13
5.2 Compatibility . 13
5.2.1 General . 13
5.2.2 Indirect control . 14
5.2.3 Direct control . 14
5.3 Initialization . 14
5.3.1 General . 14
5.3.2 Frequency band scan . 14
5.3.3 Initiation power transfer . 14
5.4 Association . 14
5.4.1 General . 14
5.4.2 Communication connection . 14
5.4.3 WPT eligibility check . 14
5.5 General charging management . 15
5.5.1 General . 15
5.5.2 Simultaneous WPT . 15
5.5.3 Sequential WPT . 15
5.5.4 Foaming WPT . 15
5.5.5 Compound WPT . 15
5.6 Abnormal status management . 15
5.6.1 General . 15
5.6.2 Source status detection . 16
5.6.3 Device status detection . 16
5.7 Inter–device WPT management . 16
5.8 Termination . 17
6 Protocols . 17
6.1 General . 17
6.2 ID structure . 17
6.2.1 Unique coupler ID . 17
6.2.2 Group ID . 18
6.2.3 Wireless Power management system ID . 18
6.2.4 Device ID . 18
6.3 Frame format . 18
6.3.1 General . 18
6.3.2 Frame header . 19
6.3.3 Frame body . 19

IEC 62827-2:2017 © IEC 2017 – 3 –
6.4 Frame type . 20
6.4.1 General . 20
6.4.2 Data frame . 20
6.4.3 Acknowledgement frame . 20
6.5 Payload format . 21
6.5.1 General . 21
6.5.2 Data frame . 21
6.6 Data block . 22
6.6.1 General . 22
6.6.2 Request block . 22
6.6.3 Response block . 24
6.6.4 Notification block . 25
7 Procedures . 27
7.1 General . 27
7.2 Association . 27
7.3 Group ID Set–up . 28
7.4 General WPT management . 28
7.4.1 Simultaneous WPT . 28
7.4.2 Sequential WPT . 29
7.4.3 Foaming WPT . 30
7.4.4 Compound WPT . 31
7.5 Abnormal situations management . 32
7.5.1 General . 32
7.5.2 Source status detection . 32
7.5.3 Device status detection . 33
7.6 Inter–device WPT management . 34
7.7 Termination . 35
Annex A (informative) Messages . 36
A.1 General . 36
A.2 API between application and APP block . 36
A.2.1 General . 36
A.2.2 ID display . 36
A.2.3 Power status display . 36
A.2.4 WPT mode selection display . 37
A.2.5 Scheduling information display . 38
A.2.6 Abnormal situations display . 39
A.3 Interface between MGMT and MGMT . 39
A.3.1 General . 39
A.3.2 WPMS–D identification . 40
A.3.3 WPT authentication . 40
A.3.4 Zone recognition . 42
A.3.5 WPT mode . 42
A.3.6 Scheduling information . 43
A.3.7 Abnormal situations management . 44
A.3.8 WPMS–D full charge notification . 44
A.3.9 WPT termination notification . 45
A.3.10 Inter–device WPT . 45
A.4 Interface between MGMT block and APP block . 46
A.4.1 General . 46

– 4 – IEC 62827-2:2017 © IEC 2017
A.4.2 Data request . 46
A.5 Interface between APP layer and MAC layer . 47
A.5.1 General . 47
A.5.2 MAC identification request . 48
A.6 Interface between MGMT block and Coupler Block . 48
A.6.1 General . 48
A.6.2 Scheduling control . 48
A.6.3 Current/voltage sensing . 49
A.6.4 Abnormal situation control . 49
A.6.5 WPT termination control . 50
A.6.6 Full charge . 50
A.6.7 Inter-device WPT . 51

Figure 1 – Usage examples of WPMS services . 12
Figure 2 – WPMS structure . 13
Figure 3 – Function of inter–device WPT management . 17
Figure 4 – UCID structure . 17
Figure 5 – Frame format . 19
Figure 6 – Data frame format . 20
Figure 7 – Acknowledgement frame format . 20
Figure 8 – Payload format of data frame . 21
Figure 9 – Block format of device status request . 23
Figure 10 – Block format of WPT request . 23
Figure 11 – Block format of coil control request . 23
Figure 12 – Block format of Group ID set–up request . 23
Figure 13 – Block format of inter–device WPT request . 24
Figure 14 – Block format of connection response . 24
Figure 15 – Block format of device status response . 24
Figure 16 – Block format of WPT response . 24
Figure 17 – Block format of coil control response . 25
Figure 18 – Block format of coil control response . 25
Figure 19 – Block format of inter–device WPT response . 25
Figure 20 – Block format of COM ID notification . 25
Figure 21 – Block format of WPT ID notification . 26
Figure 22 – Block format of WPT mode notification . 26
Figure 23 – Block format of WPT schedule notification . 26
Figure 24 – Block format of WPT termination request . 26
Figure 25 – Block format of full charge notification . 26
Figure 26 – Block format of discharge rate variation notification . 27
Figure 27 – Association . 27
Figure 28 – Group ID set–up . 28
Figure 29 – Simultaneous WPT . 29
Figure 30 – Sequential WPT . 30
Figure 31 – Foaming WPT . 31
Figure 32 – Compound WPT . 32

IEC 62827-2:2017 © IEC 2017 – 5 –
Figure 33 – Source status detection . 33
Figure 34 – Full charge detection . 34
Figure 35 – Discharge rate variation detection . 34
Figure 36 – Inter–device WPT . 35
Figure 37 – Termination . 35

Table 1 – Group ID . 18
Table 2 – ID structure . 18
Table 3 – Frame type value . 20
Table 4 – Data codes . 22
Table A.1 – Values for ID display . 36
Table A.2 – Values for power status display . 37
Table A.3 – Values for WPT mode selection display. 38
Table A.4 – Values for scheduling information display . 38
Table A.5 – Values for abnormal situation display . 39
Table A.6 – Values for WPMS–D identification . 40
Table A.7 – Values for WPT authentication . 41
Table A.8 – Values for WPMS–D power status information . 41
Table A.9 – Values for zone recognition . 42
Table A.10 – Values for WPT mode . 43
Table A.11 – Values for scheduling information . 43
Table A.12 – Values for abnormal situations management . 44
Table A.13 – Values for WPMS–D full charge notification . 45
Table A.14 – Values for WPT termination notification . 45
Table A.15 – Values for inter-device WPT . 46
Table A.16 – Values for data request . 47
Table A.17 – Values of MAC identification . 47
Table A.18 – Mac Type code. 48
Table A.19 – Values for scheduling control . 48
Table A.20 – Values for current/voltage sensing . 49
Table A.21 – Values for abnormal situation control . 50
Table A.22 – Values for WPT termination control . 50
Table A.23 – Value for full charge notification . 51
Table A.24 – Values for inter-device WPT . 51

– 6 – IEC 62827-2:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WIRELESS POWER TRANSFER – MANAGEMENT –

Part 2: Multiple device control management

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62827-2 has been prepared by technical area 15: Wireless power
transfer, of IEC technical committee 100: Audio, video and multimedia systems and
equipment.
The text of this International Standard is based on the following documents:
FDIS Report on voting
100/2900/FDIS 100/2939/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

IEC 62827-2:2017 © IEC 2017 – 7 –
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 8 – IEC 62827-2:2017 © IEC 2017
INTRODUCTION
The IEC 62827 (Wireless Power Transfer – Management) series provides the management
protocol for a wireless power transfer system in which power sources can deliver power to
receivers at a distance. The IEC 62827 series consists of the following parts:
• Part 1: Common components
• Part 2: Multiple device control management
• Part 3: Multiple source control management
Part 1 of IEC 62827 defines the definition and functionality for wireless power transfer
systems.
Part 2 of IEC 62827 specifies the management protocol of wireless power transfer for multiple
devices.
Part 3 of IEC 62827 specifies the management protocol of wireless power transfer for multiple
sources.
IEC 62827-2:2017 © IEC 2017 – 9 –
WIRELESS POWER TRANSFER – MANAGEMENT –

Part 2: Multiple device control management

1 Scope
This part of IEC 62827 defines a wireless power management protocol for wireless power
transfer to multiple devices in a wireless power management system. Various functions of
wireless power management systems are justified. The wireless power management frames
and messages that work between the management block of a power source and the
management block or the coupler block of a device, or the coupler block of a power source,
are defined as well to execute various functions. Also, the procedures for each functionality
are described based on its frames and messages.
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.
IEC 62827-1, Wireless power transfer – Management – Part 1: Common components
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms and definitions given in IEC 62827-1 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Definitions
3.1.1
COM ID
ID which is allocated to power a receiver within the wireless data communication zone of the
wireless power source
3.1.2
wireless data communication zone
area where a wireless power source can transfer data to wireless power receivers without
physical contact
3.1.3
wireless power management frame
format of the data which is exchanged between a wireless power source and a wireless power
receiver
– 10 – IEC 62827-2:2017 © IEC 2017
3.1.4
wireless power management message
data which is exchanged between a wireless power source and a wireless power receiver
3.1.5
wireless power management protocol
set of rules which determines how a wireless power source communicates with wireless power
receivers in the wireless power management system
3.1.6
wireless power management system
management system that is capable of transferring electric power from either one or multiple
wireless power source(s) to either one or multiple wireless power device(s) with wireless
communication
Note 1 to entry: In the event that areas or regions, where both data and power can be transferred, are
emphasized, the term “Wireless Power Transfer Network” may be used.
3.1.7
wireless power management system
wireless power receiver that can receive electric power from wireless power sources
3.1.8
wireless power management system
wireless power relay transmitter that can transfer electric power from one or
multiple wireless power source(s) to one or multiple wireless power receiver(s)
3.1.9
wireless power management system
wireless power source that can transfer electric power to a number of wireless
power receivers or relay transmitters
3.1.10
wireless power receiver
device that receives electric power wirelessly
3.1.11
wireless power source
transmitter that delivers electric power to power receiver
3.1.12
wireless power transfer
transfer of electric power without the physical contact of electrodes
3.1.13
wireless power transfer system
system that wirelessly transfers electric power from a wireless power source to a wireless
power receiver
3.1.14
wireless power transfer zone
area where a wireless power source can transfer electric power to wireless power receivers
without physical contact
3.1.15
WPT ID
ID which is allocated to the device within the wireless power transfer zone of wireless power
source
IEC 62827-2:2017 © IEC 2017 – 11 –
3.2 Abbreviated terms
For the purposes of this document, the following abbreviated terms apply:
ABNR abnormal
API application programming interface
APP application
DMTC device management to coupler
DST destination
ELGB eligibility
MAC medium access control
MFAN magnetic field area network
MGMT management
MTM MGMT to MGMT
NFC near field communication
PHY physical
RFID radio frequency identification
RSSI received signal strength indicator
RX receiving
RxPower received power
SCHDL scheduling
SMTA source management to application
SRC source
UCID unique coupler ID
WDCZ wireless data communication zone
WPMS wireless power management system
WPMS–D wireless power management system – device
WPMS ID wireless power management system identification
WPMS–R wireless power management system – repeater
WPMS–S wireless power management system – source
WPT wireless power transfer
WPTS wireless power transfer system
WPTZ wireless power transfer zone
4 Overview
WPMS, which is defined in IEC 62827-1, is a management protocol system for wireless power
transfer to a number of WPMS–Ds. WPT is a technology that replaces the conventional wired
charging method with wireless charging. It utilizes the characteristics of magnetic fields and
electric fields to deliver power wirelessly. In the market, there are a large number of wireless
charging devices, designed under various kinds of protocols, which are not interoperable. The
inconvenience it causes to users could cost an unnecessary large sum of money, and
uneconomical expenditure. WPMS aims to provide consumers of wireless charging devices an
option to be able to fully utilize a system that is compatible with a number of existing
technologies. Also, to break away from conventional 1:1 wireless charging (1:1 WPT), WPMS
will be managing power transfer to multiple WPMS–Ds at a time (1:N WPT), using various
WPT modes.
– 12 – IEC 62827-2:2017 © IEC 2017

IEC
Figure 1 – Usage examples of WPMS services
• The WPMS technology can be applied to the following industry fields, and others that
require a constant power supply. WPMS services can be provided as shown in Figure
1.Mobile terminals: charging services can be provided within mobile terminals anytime and
anywhere.
• Home appliances: to make entangled cable mess neat and convenient, the use of WPMS
technology can offer the benefits of minimal wiring and freedom of furniture arrangement.
In order to provide effective WPT to multiple WPMS–Ds, a proper management protocol shall
be thoroughly structured as shown in Figure 2. This protocol enables WPMS–S or WPMS–R
to control WPMS–Ds for efficient WPT process, regardless of MAC and PHY types. Under the
structure of WPMS, it will be able to incorporate both out-band WPT systems, which use Wi-Fi,
Bluetooth, ZigBee, NFC, RFID etc., and in-band WPT systems, which use MFAN etc. The
WPMS can exchange the messages between such blocks as APP block, MGMT block and
coupler block. See Annex A for additional information. It shall have the system structure
shown in Figure 2.
IEC 62827-2:2017 © IEC 2017 – 13 –
WPMS-S TPnneling WPMS-D
APP block APP block
APP APP
MAC MAC
MGMT MGMT
Layer Layer
PHY PHY
Coupler Coupler
Coupler Coupler
block block
OPt of
Scope
IEC
Figure 2 – WPMS structure
In order to efficiently provide WPT services to multiple WPMS–Ds, a proper signalling system
is required; it shall be incorporated for the exchange of WPT data and control signals. For the
compatibility of the WPT, users may select various frequency bands for the WPT as well.
Within the WPMS's range, WPMS–Ss or WPMS–Rs can provide WPTs with several watts to
several hundred watts. The closer the distance between WPMS–Ss and WPMS–Ds, the
greater the efficiency becomes. As shown in Figure 1, provided that enough infrastructure is
installed, an omnipresent charging environment is created.
Functions like optimal WPT mode selection are included for the best WPT efficiency. Also, the
WPMS includes emergency controls that provide counter-measures to contingencies, such as
sudden WPMS–D detection and disappearance. General WPT environments are controlled by
WPMS–Ss, which manage connection, separation, and release of WPMS–Ds. In order to
increase the efficiency of WPMS, WPTS can use in band communication which utilizes the
frequency to transfer data as well as power.
5 Functionalities
5.1 General
In order to design a management protocol that can construct reliable and efficient WPTS for
multiple WPMS–Ds, it needs to include all the fundamental functions, yet not repetitively. In
WPMSs, there are two ways of controlling compatibility: indirect control and direct control.
Also, functions are categorized into six distinctive functions. They are initialization,
association, general WPT management, abnormal WPT management, inter–device WPT
management, and termination.
5.2 Compatibility
5.2.1 General
There are two ways of control, depending on the compatibility with WPTS and WPMS. If
WPTS does not support WPMS, WPMS will control indirectly; otherwise, it will control directly.

– 14 – IEC 62827-2:2017 © IEC 2017
5.2.2 Indirect control
Under indirect control, a WPMS-S detects nearby a WPMS-D through a frequency scan. Once
detected, a WPMS-S will at least acknowledge the number and type of WPMS-Ds within its
range. WPMS-S will manage WPMS-Ds only as they are defined in each WPTS specification.
5.2.3 Direct control
If WPMS application is compatible with WPTS, direct control can be used. In this case, the
application can communicate with WPTS to receive various pieces of information from it. As a
consequence, a WPMS-S can manage the entire WPMS more effectively. In order to fully
utilize direct control, there shall be appropriate adjustments to each WPTS specification.
5.3 Initialization
5.3.1 General
Before a WPMS-S can initiate a WPT service to multiple WPMS–Ds, establishing
communication with WPMS-Ds should precede.
5.3.2 Frequency band scan
To identify WPMS-Ds within the WPTZ, the WPMS-S periodically broadcasts connection
requests to match with all WPMS-Ds of diverse frequency bands. The broadcasting is
processed in in-band and out-band scans in order to support diverse types of WPMS-Ds.
5.3.3 Initiation power transfer
When there is not a single WPMS-D detected from the frequency band scan, the WPMS-S
considers the possibility of a powered down WPMS-D. To wake up powered down WPMS-Ds
if there are any, the WPMS-S periodically transfers initiation power in several frequencies,
when there is no WPMS-D associated to the WPMS-S. When there are WPMS-Ds in the
WPMS that is currently receiving the WPT, the ongoing WPT may wake up powered down
WPMS-Ds.
5.4 Association
5.4.1 General
Once WPMS-Ds have been initiated, they need to be associated by WPMS-S to be properly
scheduled for efficient WPT.
5.4.2 Communication connection
Once WPMS–Ds are detected from frequency band scans, the WPMS–S sends connection
requests to WPMS–Ds. WPMS–Ds that have received a connection request will reply back to
WPMS–S with their addresses. The WPMS–S will check on the received device address, and
register the address. Accordingly, the WPMS–S will allocate a COM ID to each WPMS–D.
5.4.3 WPT eligibility check
As a WPMS–D is connected to the WPMS–S and allocated a COM ID, the WPMS–S will
request it’s the device status of the WPMS–D – frequency, battery information, received
signal strength, and so on. The WPMS–D will return information in response data. With the
data, the WPMS–D calculates eligibility with various factors, such as the distance to WPMS–
Ds. Consequently, the WPMS–S will inform
...