Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.7(2016/7/6-最新版本)

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收录在CSDN专辑《WiFi相关技术资料》 Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.7(2016/7/6-最新版本)
Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc Table of contents Introduction 13 Overview 13 1.2 Scope 13 References 13 1.4 Definitions . 1.5 Abbreviations and acronyms 16 2 Architectural overview 19 2.1 P2P components .19 2.2 P2 P topology…… a1aaaaaaaaaaa:aa:aaaa:aaaaaaaaa1a aaa:a:aaaa“aaaa 19 Concurrent operation…….….….…….………………………21 2.4 Functions and services 22 2.4.1 Basic functions and services 22 P2 p specific functions and services…… 23 2.4.3P2 P Device addressing.……………………………23 3 Functional description and procedures........................25 3.1 P2P discovery 25 3.1.1 Introduction 25 3.1.2 evice Discovery procedures…… 25 3.1.3 Service Discovery procedures................... 38 3.1.4 Group Formation procedure 44 3.1.5 P2P Invitation procedure 54 3.2 P2P Group operation 58 3.2.1 P2P Group ID 59 3.2.2 Starting and maintaining a P2P Group session 59 3.2.3 Connecting to a p2P Group 61 3.2.4 P2P Group Owner services for P2P Client discovery 62 3.2.5 Persistent group operation 64 3.2.6 Communication in a P2P Group 66 3.2.7 Disconnecting from a P2P Group 69 3.2.8 Disconnecting a p2P client 69 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of wi-Fi Alliance under the terms as stated in this document Page 3 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc 3.2. 9 Ending a P2P Group session .70 3.3 P2P Power Management 70 3.3.1 ntroduction 70 3.3.2 Power Management and discovery 3.3.3 Power Management at a P2P Group Owner .72 3.3.4 Power Management at a P2P Client 79 3.4 Managed p2P Device operations 83 3.4.1 Managed p2P device capability 83 3.4.2 P2P Coexistence Parameters operations …84 3.4.3 WLAN Deauthentication/Disassociation 86 3.4.4 Managed P2P Device Summary ∴.87 4 Frame formats 89 4.1 P2P Information element 89 4.1.1 P2P E format 重面_自11 89 4.1.2 Status attribute .92 41.3 Minor reason code attribute 93 4.1. 4 P2P Capability attribute …94 4.1.5 P2P Device iD attribute 97 4.1.6 Group Owner Intent attribute 97 4.1.7 Configuration Timeout attribute 98 4.1.8 isten Channel attribute 98 4.1. 9 P2P Group BSSID attribute 99 4.1.10 EXtended Listen T iming attribute ..100 4.1.11 Intended p2p Interface address attribute .100 4.1.12 P2P Manageability attribute ..101 4.1.13 Channel list attribute 102 41.14 Notice of absence attribute .103 41.15 P2P Device Info attribute 105 4.1.16 P2P Group Info attribute .106 4.1.17 P2P Group ID attribute .107 41.18 P2P Interface attribute 1重m重1量量重能首1首自量量1量面量自首量面 108 4.1.19 Operating Channel attribute .............................108 4.1.20 Invitation Flags attribute .109 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of wi-Fi Alliance under the terms as stated in this document Page 4 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lame 4.1.21 Out-of-Band Group Owner Negotiation Channel attribute 110 41.22 Service hash attribute 111 4.1.23 Session Information data Info ..111 4.1.24 Connection Capability Info attribute………...…...112 41.25 Advertisement id Info attribute 112 41.26 Advertised service Info attribute wwwwwwwwww 113 41.27 Session id Info attribute 114 4.1.28 Feature Capability Info attribute…… 115 4.1.29 Persistent Group Info attribute 115 4.2 Management Frames 116 4.2.1 Beacon frame format.…… .116 4.2.2 Probe Request frame format 117 4.2.3 Probe Response frame format ∴118 4.2.4 Association/Reassociation Request frame format 19 4.2.5 Association/Reassociation Response frame format 120 4.2.6 Deauthentication frame format 120 4.2.7 Disassociation frame format 121 4.2. 8 P Address Allocation in EAPOL-Key Frames(4-Way Handshake ).......121 4.2.9 P2P public action frames 122 4.2.10 P2P action frames .132 4.2. 11 Service Discovery action frames 重日重日m1日1日m日D日 134 4.212 FSt action frames …137 4.3 DMG Frames ..137 4.3.1 DMG Beacon and announce frame format 137 4.3.2 Information request frame format 138 4.3.3 Information response frame format a.aaaa日:a:a日:aa日a日 139 4.4 Frame Usage 139 4.5 NFC NDEF Structure 142 4.5.1NFCP2 P Handover Request Message…… ..142 4.5.2 NFC P2P Handover Select Message 45 Appendix a p2P State Machine 148 Appendix b p2P Specific WSC lE Attributes........................157 B.1 Requested Device Type…….…..….…….….…………. 157 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of Wi-Fi Alliance under the terms as stated in this document Page 5 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc B.2 Primary Device Type.… 日m日_1日m日自11量1面11面面面 158 Appendix gas frame Field value 159 C.1 GAS Initial Request action frame…… .159 C.2 GAS Initial Response Action Frame 161 C.3 GAS Fragmentation 163 Appendix d p2 P Discovery Diagrams…...…………167 Appendix E Recommended Practices for Bonjour using Wi-Fi P2P Service Discovery 184 E.1 Example for Apple File Sharing over TCP 186 E.2 Example for iP printing over TCP 189 E.3 DNS Name Compression 192 E,4 Supported service T ype Hash(SSTH)…………………193 Appendix F Recommended Practices for UPnP using Wi-Fi P2P Service Discovery. 195 F.1 Example 1--Search for UPnP internet gateway devices 197 F.2 Example 2-search for all UPnP root devices 198 F3 Example 3-Search for a specific device by its UUID 198 F, 4 Example 4--Search for all instances of a uPnP Media server content Directory Service 199 Appendix G Recommended Practices for Peer-to-Peer Services(P2Ps)using P2P Service Discovery .200 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of wi-Fi Alliance under the terms as stated in this document Page 6 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc gures Figure 1--P2P components and topology when operating outside DMG 20 Figure2-P2 P components and topology when operating within DMG………………20 Figure 3-A subset of P2P 1 n topology(n=1) Figure 4-P2P Concurrent device.........................21 Figure 5--EXample In-band Device Discovery procedures for a P2P Device operating outside dmg Figure 6-EXample In-band Device Discovery procedures for a P2P Device operating within dmg 32 Figure 7-Out-of-Band Device Discovery (NFC Negotiated Handover)........ 36 Figure 8-Out-of-Band Device Discovery(NFC Static Handover) 38 Figure 9-EXample of Service Discovery procedure when operating outside DMG.. 43 Figure 10-Example of Service Discovery procedure when operating within DMG... 44 Figure 11-Group Owner Negotiation message exchange 47 Figure12- Group Owner determination flowchart......………48 Figure 13-EXample of Group Formation using NfC out-of-Band Device Discovery.. 54 Figure 14--EXample of P2P Group Owner Opportunistic Power Save 73 igure 15-P2P Group Owner Notice of Absence 75 Figure 16-P2P Group Owner Notice of absence with Opportunistic Power Save..77 Figure 17-Illustration of P2P group Owner power save state precedence rules .........78 igure 18--EXample P2P WMM-Ps operation with P2P Group Owner NoA 80 Figure 19--Shortening of P2P WMM-PS USPs by P2P Group Owner absence....81 Figure 20-P2P Presence Request-Response procedure 82 Figure 21-Managed P2P Device that is a p2P Concurrent Device 84 Figure 22-Example of P2P attributes carried in two P2P lEs 92 Figure 23-NFC P2P Handover Request Message...............143 Figure 24-NFC P2P Handover select Message 46 Figure A1-P2P State Machine 149 Figure C1-GAS Initial Request Action Frame Format 159 Figure C2--Advertisement Protocol Information Element .159 Figure C3-ANQP Query Request Field 160 Figure C4--ANQP Query Request Frame Vendor-specific Content ..160 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of Wi-Fi Alliance under the terms as stated in this document Page 7 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc Figure C5-GAs Initial Response Action Frame Format 161 Figure C6-Advertisement Protocol Information Element 162 Figure C7ANQP Query Response Field Format 162 Figure C8- ANQP Query Response Frame Vendor- specific Content Field…………163 igure C9--GAS Comeback Request Frame Format 164 Figure C10--GAS Comeback Response Frame Format 164 Figure C11-Advertisement Protocol IE .165 Figure C12-EXample GAs Fragmentation Frame EXchange Sequence 166 Figure E1- Query Request Vendor- specific Content……… 184 Figure E2-Bonjour Query Data 184 Figure E3- Query Response Vendor- specific Content………………,185 Figure E4-Response Data .185 Figure E5--AFP Over T CP Query Data(human readable) 186 Figure E6- AFP Over TCP Query Data( encoded and compressed)…………187 Figure E7-AFP over TCP Response Data(human readable) 187 Figure E8-AFP over TCP Response Data(encoded and compressed) 187 Figure E9-AFP Over TCP Query Data for Example(human readable)......188 Figure E10-AFP Over TCP Query Data for EXample(encoded and compressed).188 Figure E11--AFP over TCP Response Data for Example(human readable) 188 Figure E12-AFP over TCP Response Data for Example(encoded and compressed 189 Figure E13- IPP Over TCP Query Data( human readable)………,…,…,………,189 Figure E14- IPP Over TCP Query Data( encoded and compressed)……………189 Figure E15-IPP over TCP Response Data(human readable)..........190 Figure E16-IPP over TCP Response Data(encoded and compressed) 190 Figure E17-IPP Over TCP Query Data for MyPrinter(human readable .191 Figure E18-IPP Over TCP Query Data for My Printer (encoded and compressed).191 Figure E19-IPP over TCP Response Data for MyPrinter(human readable)....191 Figure E20-IPP over TCP Response Data for MyPrinter(encoded and compressed 192 Figure F1-Vendor-specific Content in ANQP Query Request 196 Figure F2-Vendor-specific content in ANQP Query Response ..196 Figure F3--Query Data 196 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of wi-Fi Alliance under the terms as stated in this document Page 8 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc Figure F4-Response data 196 Figure F5--Query Request for UPnP Internet Gateway Devices 198 Figure F6--Query Response for UPnP Internet Gateway Devices ..198 Figure F7- Query Request for all UPnP root devices……….….…..….………198 igure F8--Query Response for all UPnP root devices 198 Figure F9--Query Request for a UPnP device by its UUID n 199 Figure F10-Query Response for a UPnP device by its UUID..........199 Figure F11-Query Request for all instances of a UPnP Media Server CDS .199 Figure F12Query Response for all instances of a UPnP Media Server CDs..199 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of wi-Fi Alliance under the terms as stated in this document Page 9 of 201 Wi-Fi Peer-to-Peer(P2P) Technical Specification v1.7 lhmc Tables Table 1-Summary of Wsc config Methods and Device Password iD usage ...........46 Table 2--P2P Coexistence Parameters setting 85 Table 3-Summary of requirements on managed p2P Devices 87 Table 4-P2P lE format 重D面 89 Table 5-general format of p2p attribute 90 Tabe6P2 P Attribute| d definitions.….……90 Table 7-Status attribute format 量1量1面1重 .92 Table8-status code definitions 3 Table 9-Minor reason code attribute format 93 Tabe10— Minor reason code definitions… 94 Table 11--P2P Capability attribute format 94 Table 12-Device Capability Bitmap definition 95 Table 13--Group Capability Bitmap definition 95 Table14-p2pDeviceidattributeformatwwww.97 Table 15-Group Owner Intent attribute format 97 Table 16--Go Intent field definition .98 Table17— Configuration Timeout attribute format….… 98 Table 18-Listen Channel attribute format 99 Table 19-P2P Group BSSID attribute format 99 Table 20-Extended Listen Timing attribute format. .....................................100 Table 21-Intended p2p interface address attribute format 100 Table 22-P2P Manageability attribute format 101 Table 23-Manageability Bitmap field format..........101 Tabe24— Channe| List attribute format.… 102 Table 25-Channel Entry field format 102 Table 26--notice of absence attribute format 103 Tabe27— CTWindow and OppPS Parameters field format………………………104 Table 28-Notice of Absence Descriptor format .104 Table 29-Device Info attribute format 105 Table 30-P2P Group Info attribute format 106 c 2016 Wi-Fi Alliance. All Rights Reserved Used with the permission of wi-Fi Alliance under the terms as stated in this document Page 10 of 20

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