1、BSI Standards Publication BS ISO/IEC 15149-2:2015 Information technology Telecommunications and information exchange between systems Magnetic field area network (MFAN) Part 2: In-band Control Protocol for Wireless Power TransferBS ISO/IEC 15149-2:2015 BRITISH STANDARD National foreword This British
2、Standard is the UK implementation of ISO/IEC 15149-2:2015. The UK participation in its preparation was entrusted to Technical Committee IST/6, Data communications. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to
3、include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 85217 6 ICS 35.110 Compliance with a British Standard cannot confer immunity from legal obligations. T
4、his British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2015. Amendments issued since publication Date Text affectedBS ISO/IEC 15149-2:2015 Information technology Telecommunications and information exchange between systems Magnetic field area n
5、etwork (MFAN) Part 2: In-band Control Protocol for Wireless Power Transfer Technologies de linformation Tlinformatique Rseau de zone de champ magntique (MFAN) Partie 2: Protocole de contrle dans la bande pour le transfert de puissance sans fil INTERNATIONAL STANDARD ISO/IEC 15149-2 Reference number
6、ISO/IEC 15149-2:2015(E) First edition 2015-05-01 ISO/IEC 2015 BS ISO/IEC 15149-2:2015ii ISO/IEC 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized othe
7、rwise 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 ISOs member body in the country of the requester. ISO copyright office
8、 Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO/IEC 15149-2:2015(E)BS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)Foreword v Introduction vi 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 2 4
9、Symbols and abbreviated terms . 2 5 Overview . 4 6 Network elements . 5 6.1 General . 5 6.2 Time element 5 6.2.1 General 5 6.2.2 Time element for MPAN . 6 6.3 Physical element 7 6.3.1 Coordinator 7 6.3.2 Node 7 6.4 Address element 8 6.4.1 MFAN ID . 8 6.4.2 UID . 8 6.4.3 Group ID 8 6.4.4 Node ID . 8
10、6.4.5 WPT ID 8 7 Network status 9 7.1 General . 9 7.2 Network status for MPAN 9 7.2.1 Stabilization . 9 7.2.2 Invigoration 9 7.2.3 Revitalization 9 7.3 MPAN state . 9 7.3.1 Coordinator state 10 7.3.2 Node state .11 8 Physical layer frame format .13 8.1 General 13 8.2 Preamble .14 8.3 Header .14 8.4
11、Payload 14 8.5 Frame check sequence 14 9 MAC layer frame format .14 9.1 General 14 9.2 Frame format for MPAN .14 9.2.1 Frame header .15 9.2.2 Frame body 15 9.2.3 Frame type .15 9.2.4 Payload format 16 9.3 Frame format for power status feedback 25 9.3.1 Frame header .25 9.3.2 Frame body 26 9.3.3 Fram
12、e type .26 9.3.4 Payload format 27 10 MAC layer function .28 10.1 General 28 ISO/IEC 2015 All rights reserved iii Contents PageBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E)10.2 Stabilization 28 10.3 Invigoration 29 10.4 Revitalization .30 11 Air interface 31 11.1 Frequency .31 11.2 Signal waveform
13、for WPT .31 iv ISO/IEC 2015 All rights reservedBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are
14、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
15、 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. The procedures used to develop this document and those intended for its further
16、 maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval 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). Att
17、ention 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. Details of any patent rights identified during the development of the document will be in the In
18、troduction 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 on the meaning of ISO specific terms and expressions related
19、to conformity assessment, as well as information about ISOs adherence to the WTO principles in the 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, Te
20、lecommunications and information exchange between systems. ISO/IEC 15149 consists of the following parts, 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 proto
21、col for wireless power transfer Part 3: Relay protocol for extended range Part 4: Security protocol for authorization ISO/IEC 2015 All rights reserved vBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E) Introduction This International Standard provides protocols for magnetic field area network (MFAN). M
22、FAN can support the service based on wireless communication and wireless power transfer in harsh environment. 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
23、 protocols of wireless network over a magnetic field. ISO/IEC 151492 specifies the control protocol for 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 specif
24、ies the security protocol to authorize nodes to communicate in magnetic field area network.vi ISO/IEC 2015 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
25、for Wireless Power Transfer 1 Scope This International Standard establishes a system for an in-band network, 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 suppl
26、y, along with a stable network. For the purpose of this International Standard, the system is designed based 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
27、 multiple devices in request. The focus is on the physical and media access control layer protocol; it will not 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 transf
28、er. This International Standard is applicable in various situations and environments, but is expected to perform excellently in the following certain use cases: mobile phones: provide ubiquitous charging environments for portable devices; home appliances: allow unrestrained placement of appliances w
29、ith the elimination of wire cables and plugs for power supply. The media access control layer protocol is designed for the following scope: variable superframe structure for wireless power transfer to multiple devices; simple and effective network topology for efficient wireless power transfer; dyna
30、mic address assignment for efficient timesharing among multiple devices. The physical layer protocol is designed 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 margi
31、n of error; variable coding and bandwidth for dynamic charging environment. 2 Normative references The following documents, 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 re
32、ferences, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 15149-1:2014, Information technology Telecommunications and information exchange between systems Magnetic field area network (MFAN) Part 1: Air interface INTERNATIONAL ST ANDARD ISO/IEC 15149-2:2015(E
33、) ISO/IEC 2015 All rights reserved 1BS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 wireless power transfer WPT method of consistent and simultaneous power supply to multiple devices within a ran
34、ge without physical contact 3.2 magnetic field area network MFAN wireless network that provides reliable communication in harsh environments using magnetic field 3.3 magnetic power network MPAN in-band wireless power transfer network that incorporates magnetic field area network (MFAN) in its commun
35、ication and wireless power transfer within a single frequency band 3.4 magnetic power area networkcoordinator MPAN-C device that carries out integral operations for magnetic power area network; wireless power transfer, connection and release of devices, and time scheduling of power transfer and data
36、 3.5 magnetic power area networknode MPAN-N devices that comprises magnetic power area network and that is not a coordinator 4 Symbols and abbreviated terms The following acronyms are used in this document: ARq Association Request ARs Association Response ARA Association Response Acknowledgement ASC
37、 Association Status Check ASK Amplitude Shift Keying ASRq Association Status Request ASRs Association Status Response ASRA Association Status Response Acknowledgement BPSK Binary Phase Shift Keying CRC Cyclic Redundancy Check DA Data Acknowledgement DaRq Disassociation Request2 ISO/IEC 2015 All righ
38、ts reservedBS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E) DaRs Disassociation Response DaRA Disassociation Response Acknowledgement DRq Data Request DRs Data Response DRA Data Response Acknowledgement FCS Frame Check Sequence GSRq Group ID Set-up Request GSRs Group ID Set-up Response GSRA Group ID S
39、et-up Response Acknowledgement LSB Least Significant Bit MAC Media Access Control NRZ-L Non-Return-to-Zero Level PHY Physical Layer Protocol PLRC Power Level Request Command PLRCA Power Level Request Command Acknowledgement PS Power Status PSF Power Status Feedback PSFI Power Status Feedback Interva
40、l PT Power Transfer PTBRq Power Transfer Beacon Request PTEC Power Transfer Execution Command PTECA Power Transfer Execution Command Acknowledgement PTPC Power Transfer Permission Command PTRC Power Transfer Request Command PTRq Power Transfer Request PTRs Power Transfer Response RA Response Acknowl
41、edgement RR Response Request SIFS Short Inter Frame Space TDMA Time Division Multiple Access UID Unique Identifier ISO/IEC 2015 All rights reserved 3BS ISO/IEC 15149-2:2015ISO/IEC 15149-2:2015(E) 5 Overview MPAN is an in-band wireless network system that enables wireless communication and wireless p
42、ower 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 system, both at the same frequency band. Due to the characteristics of magnetic field and legal regulations on the po
43、wer 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 devices in most effective orders. The MFAN has a low carrier frequency bandwidth of 30 KHz to 300 KHz; the same frequenc
44、y 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-L are considered in specific against noises. It can provide data transmission speed of several kbps within a dist
45、ance 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 power consumption. It uses dynamic address assignment for small packet size, so to manage address efficiently as
46、 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 participating in an MPAN according to their functions: MPAN-C and MPAN-N. Only one MPAN-C may exist within an M
47、PAN, 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 transmission, MPAN uses TDMA method; When an MPAN-N joins MPAN managed by MPAN-C, MPAN-C allocates time-slots for the M
48、PAN-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 MPAN-C receives relevant data for WPT ID, battery information, etc. from MPAN-Ns, it examines factors like power t
49、ransfer 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 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
