1、BSI Standards PublicationBS ISO/IEC 15149-2:2015Information technology Telecommunications andinformation exchange betweensystems Magnetic field areanetwork (MFAN)Part 2: In-band Control Protocol forWireless Power TransferBS ISO/IEC 15149-2:2015 BRITISH STANDARDNational forewordThis British Standard
2、is the UK implementation of ISO/IEC15149-2:2015.The UK participation in its preparation was entrusted to TechnicalCommittee IST/6, Data communications.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the
3、 necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 85217 6ICS 35.110Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard wa
4、s published under the authority of theStandards Policy and Strategy Committee on 31 May 2015.Amendments issued since publicationDate Text affectedBS ISO/IEC 15149-2:2015Information technology Telecommunications and information exchange between systems Magnetic field area network (MFAN) Part 2: In-ba
5、nd Control Protocol for Wireless Power TransferTechnologies de linformation Tlinformatique Rseau de zone de champ magntique (MFAN) Partie 2: Protocole de contrle dans la bande pour le transfert de puissance sans filINTERNATIONAL STANDARDISO/IEC15149-2Reference numberISO/IEC 15149-2:2015(E)First edit
6、ion2015-05-01 ISO/IEC 2015BS ISO/IEC 15149-2:2015ii ISO/IEC 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, ele
7、ctronic 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 ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Verni
8、er, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 15149-2:2015(E)BS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 24 Symbols and abbreviated terms . 25 Overview . 46 Ne
9、twork elements . 56.1 General . 56.2 Time element 56.2.1 General 56.2.2 Time element for MPAN . 66.3 Physical element 76.3.1 Coordinator 76.3.2 Node 76.4 Address element 86.4.1 MFAN ID . 86.4.2 UID . 86.4.3 Group ID 86.4.4 Node ID . 86.4.5 WPT ID 87 Network status 97.1 General . 97.2 Network status
10、for MPAN 97.2.1 Stabilization . 97.2.2 Invigoration 97.2.3 Revitalization 97.3 MPAN state . 97.3.1 Coordinator state 107.3.2 Node state . 118 Physical layer frame format .138.1 General 138.2 Preamble . 148.3 Header . 148.4 Payload 148.5 Frame check sequence 149 MAC layer frame format .149.1 General
11、149.2 Frame format for MPAN . 149.2.1 Frame header .159.2.2 Frame body 159.2.3 Frame type . 159.2.4 Payload format 169.3 Frame format for power status feedback 259.3.1 Frame header .259.3.2 Frame body 269.3.3 Frame type . 269.3.4 Payload format 2710 MAC layer function .2810.1 General 28 ISO/IEC 2015
12、 All rights reserved iiiContents PageBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)10.2 Stabilization 2810.3 Invigoration 2910.4 Revitalization . 3011 Air interface 3111.1 Frequency . 3111.2 Signal waveform for WPT . 31iv ISO/IEC 2015 All rights reservedBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)
13、ForewordISO (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 technic
14、al 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
15、in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.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 approv
16、al criteria needed for the different types of document 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
17、of patent rights. ISO and IEC 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 t
18、rade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the
19、Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information .The committee responsible for this document is ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems.ISO/IEC 15149 consists of the following p
20、arts, under the general title Information technology Telecommunications and information exchange between systems Magnetic field area network (MFAN): Part 1: Air interface Part 2: In-band control protocol for wireless power transfer Part 3: Relay protocol for extended range Part 4: Security protocol
21、for authorization ISO/IEC 2015 All rights reserved vBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)IntroductionThis International Standard provides protocols for magnetic field area network (MFAN). MFAN can support the service based on wireless communication and wireless power transfer in harsh envir
22、onment. MFAN is composed of four protocols; air interface, in-band control protocol, relay protocol, and security protocol.ISO/IEC 151491 specifies the physical layer and media access control layer protocols of wireless network over a magnetic field.ISO/IEC 151492 specifies the control protocol for
23、wireless power transfer based on magnetic field area network.ISO/IEC 151493 specifies the relay protocol to extend effective network coverage of magnetic field area network.ISO/IEC 151494 specifies the security protocol to authorize nodes to communicate in magnetic field area network.vi ISO/IEC 2015
24、 All rights reservedBS ISO/IEC 15149-2:2015Information technology Telecommunications and information exchange between systems Magnetic field area network (MFAN) Part 2: In-band Control Protocol for Wireless Power Transfer1 ScopeThis International Standard establishes a system for an in-band network,
25、 from which both wireless power transfer and data transmission are carried out simultaneously at the same frequency band. It provides technical solution for a remote and consistent power supply, along with a stable network.For the purpose of this International Standard, the system is designed based
26、on the principles described in ISO/IEC 15149 (Magnetic Field Area Network). In this way, it is expected to achieve superiority in control of devices, while managing wireless power transfer to multiple devices in request. The focus is on the physical and media access control layer protocol; it will n
27、ot discuss matters on the upper layer protocols. As together, the PHY and MAC layers have to be able to carry out the following tasks: data transmission, signal control, wireless power transfer.This International Standard is applicable in various situations and environments, but is expected to perfo
28、rm excellently in the following certain use cases: mobile phones: provide ubiquitous charging environments for portable devices; home appliances: allow unrestrained placement of appliances with the elimination of wire cables and plugs for power supply.The media access control layer protocol is desig
29、ned for the following scope: variable superframe structure for wireless power transfer to multiple devices; simple and effective network topology for efficient wireless power transfer; dynamic address assignment for efficient timesharing among multiple devices.The physical layer protocol is designed
30、 for the following scope: one frequency band for both wireless power transfer and magnetic field communication; simple and robust modulation for low-cost implementation and minimized margin of error; variable coding and bandwidth for dynamic charging environment.2 Normative referencesThe following d
31、ocuments, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO/IEC 15149-1:2014, I
32、nformation technology Telecommunications and information exchange between systems Magnetic field area network (MFAN) Part 1: Air interfaceINTERNATIONAL STANDARD ISO/IEC 15149-2:2015(E) ISO/IEC 2015 All rights reserved 1BS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)3 Terms and definitionsFor the purp
33、oses of this document, the following terms and definitions apply.3.1wireless power transferWPTmethod of consistent and simultaneous power supply to multiple devices within a range without physical contact3.2magnetic field area networkMFANwireless network that provides reliable communication in harsh
34、 environments using magnetic field3.3magnetic power networkMPANin-band wireless power transfer network that incorporates magnetic field area network (MFAN) in its communication and wireless power transfer within a single frequency band3.4magnetic power area networkcoordinatorMPAN-Cdevice that carrie
35、s out integral operations for magnetic power area network; wireless power transfer, connection and release of devices, and time scheduling of power transfer and data3.5magnetic power area networknodeMPAN-Ndevices that comprises magnetic power area network and that is not a coordinator4 Symbols and a
36、bbreviated termsThe following acronyms are used in this document:ARq Association RequestARs Association ResponseARA Association Response AcknowledgementASC Association Status CheckASK Amplitude Shift KeyingASRq Association Status RequestASRs Association Status ResponseASRA Association Status Respons
37、e AcknowledgementBPSK Binary Phase Shift KeyingCRC Cyclic Redundancy CheckDA Data AcknowledgementDaRq Disassociation Request2 ISO/IEC 2015 All rights reservedBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)DaRs Disassociation ResponseDaRA Disassociation Response AcknowledgementDRq Data RequestDRs Data
38、 ResponseDRA Data Response AcknowledgementFCS Frame Check SequenceGSRq Group ID Set-up RequestGSRs Group ID Set-up ResponseGSRA Group ID Set-up Response AcknowledgementLSB Least Significant BitMAC Media Access ControlNRZ-L Non-Return-to-Zero LevelPHY Physical Layer ProtocolPLRC Power Level Request C
39、ommandPLRCA Power Level Request Command AcknowledgementPS Power StatusPSF Power Status FeedbackPSFI Power Status Feedback IntervalPT Power TransferPTBRq Power Transfer Beacon RequestPTEC Power Transfer Execution CommandPTECA Power Transfer Execution Command AcknowledgementPTPC Power Transfer Permiss
40、ion CommandPTRC Power Transfer Request CommandPTRq Power Transfer RequestPTRs Power Transfer ResponseRA Response AcknowledgementRR Response RequestSIFS Short Inter Frame SpaceTDMA Time Division Multiple AccessUID Unique Identifier ISO/IEC 2015 All rights reserved 3BS ISO/IEC 15149-2:2015ISO/IEC 1514
41、9-2:2015(E)5 OverviewMPAN is an in-band wireless network system that enables wireless communication and wireless power transfer within a single frequency band. Data and control commands are communicated according to the MFAN system; power is transferred wirelessly according to the consistent WPT sys
42、tem, both at the same frequency band. Due to the characteristics of magnetic field and legal regulations on the power level, the range of MFAN is wider than that of WPT. Within the MPAN, the maximum WPT efficiency is achieved with an MPAN-C taking in charge of every scheduling accordingly for device
43、s in most effective orders.The MFAN has a low carrier frequency bandwidth of 30 KHz to 300 KHz; the same frequency band is used for WPT. It uses a simple and robust modulation method like BPSK for low cost implementation and low error probability. Also dynamic coding methods like Manchester and NRZ-
44、L are considered in specific against noises. It can provide data transmission speed of several kbps within a distance of several meters. For WPT, unmodulated sine sinusoidal signal is used to enhance WPT efficiency. The MPAN uses a simple and efficient network topology like the star topology for low
45、 power consumption. It uses dynamic address assignment for small packet size, so to manage address efficiently as well. Also it incorporates an adaptive link quality control by using various transmission speeds, and coding methods suitable for various MPAN environments.There are two kinds of devices
46、 participating in an MPAN according to their functions: MPAN-C and MPAN-N. Only one MPAN-C may exist within an MPAN, where a number of MPAN-Ns may be registered to. As a base station of MPAN, MPAN-C manages connection and release of MPAN-Ns when there is response to its request. For the data transmi
47、ssion, MPAN uses TDMA method; When an MPAN-N joins MPAN managed by MPAN-C, MPAN-C allocates time-slots for the MPAN-N. WPT and data transmission would begin as MPAN-C requests for the responses of MPAN-Ns.As shown in Figure 1, MPAN-C and MPAN-Ns are to be located elsewhere within the network. If MPA
48、N-C receives relevant data for WPT ID, battery information, etc. from MPAN-Ns, it examines factors like power transfer sequences or the number of time slots for an appropriate WPT. MPAN-C then sends control data back to MPAN-Ns to manage overall WPT operations.Figure 1 Wireless Power Transfer System
49、MPAN can be applied to various industries. It may be applied to a situation where electric devices are in need of constant power supply to function properly. For some industries, significant improvement in efficiency is attainable simply by providing power wirelessly. In any cases, duration of battery life no longer becomes a problem; no need to spare broad space for spacious batteries and charging equipment.As for an example, there has always been a battery issue when it comes to using mobile dev
