1、 ETSI TS 103 544-20 V1.3.0 (2017-10) Publicly Available Specification (PAS); Intelligent Transport Systems (ITS); MirrorLink; Part 20: Internet Accessibility CAUTION The present document has been submitted to ETSI as a PAS produced by CCC and approved by the ETSI Technical Committee Intelligent Tran
2、sport Systems (ITS). CCC is owner of the copyright of the document CCC-TS-053 and/or had all relevant rights and had assigned said rights to ETSI on an “as is basis“. Consequently, to the fullest extent permitted by law, ETSI disclaims all warranties whether express, implied, statutory or otherwise
3、including but not limited to merchantability, non-infringement of any intellectual property rights of third parties. No warranty is given about the accuracy and the completeness of the content of the present document. TECHNICAL SPECIFICATION ETSI ETSI TS 103 544-20 V1.3.0 (2017-10)2 Reference DTS/IT
4、S-88-20 Keywords interface, ITS, PAS, smartphone ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notic
5、e The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorizat
6、ion of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aw
7、are that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following s
8、ervices: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version
9、 shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2017. Car Connectivity Consortium 2011-2017. All rights reserved. ETSI logo is a Trade Mark of ETSI registered for the benefit of its Members. Mirro
10、rLink is a registered trademark of Car Connectivity Consortium LLC. RFB and VNC are registered trademarks of RealVNC Ltd. UPnP is a registered trademark of UPnP Forum. Other names or abbreviations used in the present document may be trademarks of their respective owners. DECTTM, PLUGTESTSTM, UMTSTMa
11、nd the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSM and the GSM logo are trademarks reg
12、istered and owned by the GSM Association. ETSI ETSI TS 103 544-20 V1.3.0 (2017-10)3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Abbreviations . 5g34 Internet Accessibility 6
13、g34.1 General . 6g34.2 Wi-Fi P2P Connection 6g34.2.1 General 6g34.2.2 MirrorLink Internet Accessibility information Exchange . 6g34.2.3 Managing Wi-Fi P2P connection using MirrorLink Service Discovery . 7g3Annex A (informative): Authors and Contributors . 10g3History 11g3ETSI ETSI TS 103 544-20 V1.3
14、.0 (2017-10)4 Intellectual Property Rights Essential patents IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR
15、 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no inve
16、stigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present docume
17、nt may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks i
18、n the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport Systems (ITS). The present document is part 20 of
19、a multi-part deliverable. Full details of the entire series can be found in part 1 i.1. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI
20、 Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 103 544-20 V1.3.0 (2017-10)5 1 Scope The present document is part of the MirrorLinkspecification which specifies an interface
21、for enabling remote user interaction of a mobile device via another device. The present document is written having a vehicle head-unit to interact with the mobile device in mind, but it will similarly apply for other devices, which provide a color display, audio input/output and user input mechanism
22、s. The present document specifies MirrorLink Device Discovery on Wi-Fi Direct. The procedure is used to provide MirrorLink Server and Clients Internet configuration prior to Wi-Fi P2P group formation. 2 References 2.1 Normative references References are either specific (identified by date of publica
23、tion and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in
24、the expected location might be found at https:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long-term validity. The following referenced documents are necessary for the application of the present docu
25、ment. 1 Wi-Fi Alliance Technical Committee, P2P Task Group, “Wi-Fi Peer-to-Peer (P2P) Technical Specification“, Revision 1.2, December 14, 2011. NOTE: Available at http:/csukuangfj.github.io/pdf/wifi/WiFi_P2P_Technical_Specification_v1.2.pdf. 2 ETSI TS 103 544-18 (V1.3.0): “Publicly Available Specif
26、ication (PAS); Intelligent Transport Systems (ITS); MirrorLink; Part 18: IEEE 802.11TMCar Connectivity Consortium (CCC) Information Element“. 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For spe
27、cific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long-term validity. T
28、he following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ETSI TS 103 544-1 (V1.3.0): “Publicly Available Specification (PAS); Intelligent Transport Systems (ITS); MirrorLink; Part 1: Connect
29、ivity“. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: AP Access Point DHCP Dynamic Host Configuration Protocol DNS Domain Name System ETSI ETSI TS 103 544-20 V1.3.0 (2017-10)6 GC P2P Group Client GO P2P Group Owner IE Information ElementP2P Peer-to-peer
30、 4 Internet Accessibility 4.1 General Both MirrorLink Server and Client can access the Internet, if all the following three conditions are true: 1) Either MirrorLink Server or Client shall have Internet connectivity with WAN interface. 2) The device that has Internet access shall be capable of shari
31、ng its connectivity to the other. 3) The device having Internet connectivity shall become an Access Point. 4.2 Wi-Fi P2P Connection 4.2.1 General If a MirrorLink Server and Client want Wi-Fi P2P connection, they shall proceed Wi-Fi connection setup as defined on the Wi-Fi P2P specification 1. If a M
32、irrorLink Client is setup to connect in this mode and the MirrorLink Server is set to operate in the same mode, the two devices find each other over Wi-Fi technology and negotiate the AP and client role in autonomous way by conducting Group Owner negotiation procedure defined in the Wi-Fi P2P specif
33、ication. The AP role negotiation is performed as following, as defined in 1: 1) The Wi-Fi interface is turned on at both MirrorLink Server and Client. 2) If the Wi-Fi mode is set to P2P mode, it proceeds to Wi-Fi Device discovery as defined in 1. 3) During the device discovery, a MirrorLink device s
34、hall include CCC IE (Information Element) which is defined in 2. 4) By referring the information included in the Internet Accessibility sub-element in the CCC IE, defined in 2, the MirrorLink Server and the Client exchange Group Owner negotiation messages to negotiate AP role by checking GO Intent V
35、alue in the message. 5) A device sends higher GO Intent Value will take Group Ownership and starts AP mode. 4.2.2 MirrorLink Internet Accessibility information Exchange To inform the configuration information of internet accessibility of both sides, an Internet Accessibility sub-element shall be inc
36、luded into the CCC Information Element, as defined in 2 prior to a group formation. The Internet Accessibility entry provides the following information: MirrorLink Type, i.e. whether the device is a Server or a Client device, and in case of a client device, whether it supports a single or multiple M
37、irrorLink servers. Internet Access Support, i.e. whether the device is able to provide internet access for the connected device. Internet Access Required, i.e. whether the device requires access to the Internet. MirrorLink Client Preference, i.e. in case there is a contradiction, the MirrorLink Clie
38、nts informs about its preference to resolve it. ETSI ETSI TS 103 544-20 V1.3.0 (2017-10)7 4.2.3 Managing Wi-Fi P2P connection using MirrorLink Service Discovery MirrorLink Server or Client wants to become Group Owner when its configuration or service needs P2P Group Owner role to operate correctly.
39、For example, MirrorLink Client shall become Group Owner to support more than one MirrorLink Servers, while MirrorLink Server shall play Group Owner role to offer Internet connectivity sharing to the other. By setting its Intent Value to 15, MirrorLink Server or Client shall be the P2P Group Owner. I
40、n the case where both the MirrorLink Server and the Client want to become Group Owner and both of them set their Intent Values to 15, the P2P connection fails. To prevent such P2P connection failure, MirrorLink Server and Client shall exchange Internet Accessibility information at Device Discovery p
41、rocedure prior to a group formation. Based on MirrorLink Service Configurations of the MirrorLink Server and the Client, the following Group Owner and Group Client role can be distinguished as shown in Table 1. Table 1: MirrorLink Service Configuration for Group Owner Selection MirrorLink Service Co
42、nfiguration Group Ownership Selection Internet Access Internet Access Required Multiple ML Servers Support ML Client Preference GO Role Conflict Device offering Cross Connection P2P Role ML Server ML Client ML Server ML Client ML Server ML Client Yes Yes Yes Yes Yes N/A No ML Client GC GO No Both Bo
43、th BothYes No Yes ML Client GC GONo Both Both BothNo Yes Yes ML Client GC GONo Both Both BothNo No Yes N/A GC GONo N/A Both BothYes No Yes Yes Yes Internet Access Yes ML Server GO GC Multiple ML Servers Yes N/A (Concurrent Operation) GC GO No N/A No ML Server GO GC Yes No Yes N/A No N/A (Concurrent
44、Operation) GC GO No N/A No N/A GC GO ML Server GO GC No Yes Yes Internet Access Yes ML Server GO GC Multiple ML Servers Yes N/A GC GO No N/A No ML Server GO GC No No Yes N/A No N/A GC GO No N/A No N/A GC GO ML Server GO GC No Yes Yes Yes Yes N/A No ML Client GC GO No Yes No Yes No No Yes Yes No No N
45、o Yes N/A GC GO ETSI ETSI TS 103 544-20 V1.3.0 (2017-10)8 MirrorLink Service Configuration Group Ownership Selection Internet Access Internet Access Required Multiple ML Servers Support ML Client Preference GO Role Conflict Device offering Cross Connection P2P Role ML Server ML Client ML Server ML C
46、lient ML Server ML Client No Both BothNo No Yes Yes Yes N/A No N/A GC GO No Both BothYes No Yes GC GONo Both BothNo Yes Yes GC GONo Both BothNo No Yes GC GONo Both BothNOTE 1: If P2P Device cannot provide Internet Access properties to the other, its Internet Access will be regarded as not available.
47、 NOTE 2: Both mean that Group Owner can be decided on secondary factors. If both device can be GO, then MirrorLink Client is recommended to become GO. NOTE 3: Concurrent operation mean that the MirrorLink Server uses its own Internet connectivity and does not offer Cross Connection, and the MirrorLi
48、nk Client cannot access the Internet After exchanging MirrorLink Internet Accessibility Service Configuration, MirrorLink Server and Client acknowledge which device will be the P2P Group Owner to operate MirrorLink correctly. MirrorLink Server and Client shall proceed Group Formation Procedure to fo
49、rm P2P group as specified in 1. During Group Negotiation phase, both the MirrorLink Server and the Client can begin Group Owner Negotiation by sending a GO Negotiation Request frame. The device receiving a GO Negotiation Request frame shall examine the received information and respond with a GO Negotiation Response frame. If the device has to be the Group Owner but its default Intent Value is lower than the Intent Value in the GO Negotiation Request, the device shall set the value higher than the received Intent Value. If the device ha
