1、 IEC 62481-10 Edition 1.0 2017-07 INTERNATIONAL STANDARD Digital living network ALLIANCE (DLNA) home networked device interoperability guidelines Part 10: Low-power mode IEC 62481-10:2017-07(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights
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11、guidelines Part 10: Low-power mode INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.160; 35.100.05; 35.110 ISBN 978-2-8322-4551-4 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside
12、2 IEC 62481-10:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms, definitions and conventions 6 3.1 Terms and definitions 6 3.2 Conventions 7 4 Networking architecture and guideline conventions 7 4.1 DLNA home networking architecture . 7 4.2 Document con
13、ventions 7 4.3 Guideline structure and layout 7 5 DLNA Device Model. 7 5.1 General . 7 5.2 Device Functions 7 5.3 Device Capabilities . 8 5.4 System usage . 8 5.5 System usage for Low-Power Controller and Low-Power Endpoint 8 5.6 System usage for Low-Power Proxy 9 6 Low-power mode guidelines 10 6.1
14、General . 10 6.2 Device discovery any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the In
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21、 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 t
22、he 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 62481-10 has been prepared under technical area 8: Multimedia home systems and application
23、s for end-user network, of IEC technical committee 100: Audio, video and multimedia systems and equipment. The text of this International Standard is based on the following documents: CDV Report on voting 100/2750/CDV 100/2892/RVC Full information on the voting for the approval of this International
24、 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. 4 IEC 62481-10:2017 IEC 2017 A list of all parts of IEC 62481 series, published under the general title Digital Living Network Alliance (DLNA
25、) home networked device interoperability guidelines, can be found on the IEC website. 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. A
26、t 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 t
27、o be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. IEC 62481-10:2017 IEC 2017 5 INTRODUCTION Consumers are acquiring, viewing, and managing an increasing amount of digital media (photos, music, and video) on devices in the co
28、nsumer electronics (CE), mobile, and personal computer (PC) domains. As such, they want to conveniently enjoy the content, regardless of the source, across different devices and locations in the home. The digital home vision integrates the Internet, mobile, and broadcast networks through a seamless,
29、 interoperable network, which will provide a unique opportunity for manufacturers and consumers alike. In order to deliver on this vision, a common set of industry design guidelines is needed that allows vendors to participate in a growing marketplace, leading to more innovation, simplicity, and val
30、ue for consumers. This document serves that purpose and provides vendors with the information needed to build interoperable networked platforms and devices for the digital home. 6 IEC 62481-10:2017 IEC 2017 DIGITAL LIVING NETWORK ALLIANCE (DLNA) HOME NETWORKED DEVICE INTEROPERABILITY GUIDELINES Part
31、 10: Low-power mode 1 Scope This part of IEC 62481 specifies guidelines for low-power mode management. Power saving is modular within a physical device. In the context of DLNA networked devices, each physical network interface can have various power modes, some of which can allow Layer 2 or Layer 3
32、connectivity to still be present, even when many of the other components of the device are powered down. Other physical components, such as screens, hard drives, and similar resources, can also support different power modes. 2 Normative references The following documents are referred to in the text
33、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 62481-1-1:2017, Digital living network allian
34、ce (DLNA) home networked device interoperability guidelines Part 1-1: Architecture and protocols ISO/IEC 29341-31-1, Information technology UPnP Device Architecture Part 31-1: Energy management device control protocol Energy management service 3 Terms, definitions and conventions For the purposes of
35、 this document, the terms, definitions and abbreviated terms given in IEC 62481-1-1:2017 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 platfo
36、rm: available at http:/www.iso.org/obp 3.1 Terms and definitions 3.1.1 Network Interface Mode operation mode of a network interface, the set of modes includes: “up“ for IP traffic, “down“ but wakeable either internally or externally, or unwakeable Note 1 to entry: See ISO/IEC 29341-31-1 3.1.2 Networ
37、k Interface Information information related to a physical device and its network interface(s) IEC 62481-10:2017 IEC 2017 7 3.1.3 EMS EnergyManagement Service UPnP service that provides information relating to network interfaces and capabilities for resource subscription Note 1 to entry: The EnergyMa
38、nagement Service specification is a standard UPnP DCP. 3.2 Conventions In IEC 62481-1-1:2017 and this document, a number of terms, conditions, mechanisms, sequences, parameters, events, states, or similar terms are printed with the first letter of each word in uppercase and the rest lowercase (e.g.,
39、 Move). Any lowercase uses of these words have the normal technical English meanings. 4 Networking architecture and guideline conventions 4.1 DLNA home networking architecture This specification extends the DLNA home networking architecture that is defined in Clause 4 of IEC 62481-1-1:2017. 4.2 Docu
40、ment conventions See Clause 6 of IEC 62481-1-1:2017, for a description of the DLNA document structure and conventions. 4.3 Guideline structure and layout See 7.1 of IEC 62481-1-1:2017, for guideline and attribute table layout descriptions. 5 DLNA Device Model 5.1 General Refer to Clause 5 of IEC 624
41、81-1-1:2017, for a description of the existing DLNA Device Model. This document extends the existing DLNA devices and system usages. 5.2 Device Functions Power saving is modular within a physical device. In the context of DLNA networked devices, each physical network interface can have various power
42、 modes, some of which can allow Layer 2 or Layer 3 connectivity to still be present, even when many of the other components of the device are powered down. Other physical components, such as screens, hard drives, and similar resources, can also support different power modes. UPnP EnergyManagement Se
43、rvice: a UPnP EnergyManagement Service makes available information about the description and Network Interface Mode of a physical devices network interface(s). It can also allow other devices to indicate when they are interested in ensuring the availability of the functionality in a DLNA Device Clas
44、s, and to reserve use of the needed resources at that time. UPnP EnergyManagement Control Point: a UPnP EnergyManagement Control Point issues action requests to a UPnP EnergyManagement Service to get information about the description and Network Interface Mode of a physical devices Network Interface
45、s. It can also issue action requests to indicate when it is interested in ensuring the availability of functionality in a DLNA Device Class, and to reserve use of the needed resources at that time. 8 IEC 62481-10:2017 IEC 2017 WakeOnPattern Signaler: a Wake-on Pattern Signaler transmits a bit patter
46、n intended to cause a Network Interface on another device to change its Network Interface Mode to “IP- up“ (active). 5.3 Device Capabilities For the low-power mode interoperability guidelines and system usages, the following Device Capabilities are defined. A Low-Power Controller (+LPC+) with the ro
47、le of providing a control point for issuing action requests to a Low-Power Endpoint or a Low-Power Proxy. A Low-Power Endpoint (+LPE+) with the role of responding to actions requests to provide information on Network Interface Mode and access to services based on subscriptions. A Low-Power Proxy (+L
48、PPRX+) with the role of tracking the availability of network interfaces and providing the information to the Low-Power Controller on behalf of other DLNA Low-Power Endpoints. 5.4 System usage The low-power mode feature does not impact existing DLNA system usages pertaining to content sharing, but pr
49、ovides mechanisms and protocols between networked devices so that awareness of the availability of DLNA functionality, even in the presence of power saving modes of operation, can exist in the DLNA network. The introduction of networked devices in low power modes can introduce some latency and longer response time in DLNA operation. This specification does not provide guidelines nor recommendations on the user interface but it is expected that a Low-Power Controller could give some feedback to the
