Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)

Transcription

1 Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Title: [Pre-proposals for IEEE ] Date Submitted: [7 May 2012] Source: [Qing Li, Chonggang Wang, Zongrui Ding, Hongkun Li, Paul Russell Jr.] Company [InterDigital Communications Corporation] Address [781 Third Avenue, King of Prussia, PA , USA] Voice:[ ], FAX: [ ], Re: [.] Abstract: [This document presents pre-proposals on the PHY and MAC system design for (PAC)] Purpose: [To discuss technical feasibility of proposed system design for (PAC)] tice: This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P Slide 1

2 Content 1. Overview 2. System Architecture 3. Frame Structure 4. Context Information Management Procedures 5. General Scan Procedures 6. Context-aware Fast Discovery Procedures 7. Context-aware Fast Association /Disassociation / Re-association Procedures 8. Context-aware Synchronization Procedures 9. Channel Management Procedures 10. Reliable Multicast Transmission Procedures 11. Context-aware Power Control Procedures 12. Measuring & Reporting Procedures 13. Cross Layer Function 14. Conclusion 15. Contributors Slide 2

3 Overview Peer Aware Communication Infrastructure or infrastructure-less communication among peers within proximity Peer-to-Peer Network (P2PNW) is formed for a desired service/application within proximity Many P2PNWs can coexist in proximity One peer can participate in multiple services or applications, i.e. multiple P2PNWs P2P communication: can be centralized or distributed within a P2PNW Context Services, applications, users, devices, proximity, security, etc. Context-aware All the peer-to-peer communications are formed for the desired services /applications /users /devices etc. in the proximity, i.e. Context-aware Peer-to-Peer Communications or Context-aware P2PNWs. Slide 3

4 Virtual Leader (VL): Overview (cont.) A peer defined to represent, manage, and coordinate the P2P communications among a group of peers sharing the same context-based service/application, or intra-p2pnw communications. A VL may be dynamically determined and/or changed within P2PNW. One VL for one application; one application can have only one VL. Super Virtual Leader (SuperVL): A peer defined to coordinate with all VLs, or inter-p2pnw communications. A super virtual leader may be dynamically determined and/or changed among the virtual leaders. The super virtual leader is the top leader of the VLs hierarchical structure. Only one SuperVL in the proximity. Sub-Virtual Leader (SubVL): A peer defined to extend coverage through multi-hop. A SubVL is a VL for the subgroup peers under; a peer under the VL or a SubVL. The SubVL may have a subset of VL s function. Slide 4

5 PAC Networks in Proximity Centralized Group Communication Peer2 Peer1 (VL) Peer6 Application2: Chat Peer7 Pair Communication Peer8 Distributed Group Communication Peer3 (SubVL) Peer3-1 Peer4 Peer3-2 Peer5-1 Application1: Advertisement Peer5(SubVL) Peer5-2 Peer5-3 Pair Communication Application3: Keep Alive Peer9 Peer10 Peer12 Peer11 Application4: Game Context-Aware Peer-to-Peer Communications Slide 5

6 Centralized Inter-P2PNW Control Scenario App1 Peer1 (VL1) (SuperVL for all P2PNWs) Control Data Peer2 Peer3 (SubVL) Peer4 App2 Peer1(VL2) App3 Peer1(VL3) App4 Peer1(VL4) Peer5 Peer3-1 Peer3-2 Peer2 Peer3 Peer4 Peer2 Peer3 Peer4 Inter-P2PNWs: virtually centralized control by SuperVL Intra-P2PNW: virtually centralized control by VL Slide 6

7 Hybrid Inter-P2PNW Control Scenario App1 Peer1 (VL1) Control Data Peer2 Peer3 (SubVL) Peer4 App3 Peer1(VL3) App2 Peer1(VL2) App4 Peer1(VL4) Peer5 Peer3-1 Peer3-2 Peer2 Peer3 Peer4 Peer2 Peer3 Peer4 Inter-P2PNWs: distributed control Intra-P2PNW: virtually centralized control by VL Slide 7

8 Distributed Inter-P2PNW Control Scenario App1 Peer1 Control Data Peer2 Peer3 Peer4 App2 Peer1 App3 Peer1 App4 Peer1 Peer5 Peer3-1 Peer3-2 Peer2 Peer3 Peer4 Peer2 Peer3 Peer4 Inter-P2PNWs: distributed control Intra-P2PNW: distributed control Slide 8

9 System Architecture Block diagram of system architecture Call flow of system procedures Flowchart of system operations Interfaces of system logic functions Slide 9

10 Super frame structure PHY & MAC frame structure Multiplex schemes: TDMA CDMA/DSS OFDMA Frame Structure Slide 10

11 Super Frame Structure Beacon1 SuperVL VL1 (App1) Beacon2 VL2 (App2) Beacon3 VL3 (App3) Beacon1 SuperVL VL1 (App1) Beacon2 VL2 (App2) Beacon3 VL3 (App3) CCDCH App1 (1 st i slots) DCDCH (1 st i 1 slots) Frame 1 (App1) App2 DCDCH (1 st i 2 slots) App3 DCDCH (1 st i 3 slots) Frame 2 (App2) Frame3(App3) Frame 1 (App1) Frame 2 (App2) Super Frame1 Super Frame2 CCDCH is defined for inter-p2pnws communications and shared by SuperVL, VLs, SubVL(s) or Peers of all services or applications or P2PNWs in proximity. DCDCH is defined for intra-p2pnw communications and shared by the VL, SubVLs and peers within a P2PNW. The CCDCH and/or DCDCH may be used for but not limited to the following, common control messages to inter-p2pnws in proximity or within the intra-p2pnw paging or broadcast messages to inter-p2pnws in proximity or within the intra-p2pnw short high priority data transmissions to inter-p2pnws in proximity or within intra-p2pnw Slide 11

12 Context item(s) Context Information and Context-aware ID User ID/Device ID Context item(s) Payload Data... Service Category (SCAT) Application ID Context aware Identifier PI User ID/ Group ID Application Values.. Context Level 1 ID Context Level 1 Peer Values Multi-hop Context Level 2 ID1 Context Level 2 ID2... Context Level 2 IDn Context Level 2 Frowarding Indication... Forwarder Context Level n IDn Context Level n IDn... Context Level n IDn Context Level n... Context Level 1 Context Level 2 Context Level 3 Slide 12

13 General Procedures General Scan Procedures Schemes Centralized control Hybrid control Distributed control Slide 13

14 Context-aware Discovery Procedures General context-aware discovery procedure Fast peer discovery scan procedure 1-to-N discovery procedure Multi-hop discovery procedure Slide 14

15 General Context-aware Discovery Procedure Slide 15

16 Fast Peer Discovery Scan Using Context-aware ID Context-aware Category (CACat) Emergency High Priority Connection Advertisement User Centric Activities Service ID (SID) War Fire Medical Flood watch Facebook Service x Product y Content exchange Service Based User ID (UID) Homeland Security Police Patient Weather forecast center Facebook User ID Agent or store Manufacture or store User ID AP Parameters (APParam) Region, broadcast/multi-cast Location, severity, help center Hospital, doctor, privacy level Region, time, severity, help center Chat, status update Price, discount, forward credit Price, club coupon, expiring date Content name, size, privacy Smart Environment Device Sync User ID Device list, items to synchronize Others Smart Transportation Traffic Traffic controller Location, time, status Network of Network Network name Network ID Context, load, parent network Context-aware Category (CACat) User ID (UID) User Based User Parameters (UParam) Gamer User ID or virtual User ID Games, game skill level Multi-hopper User ID Level of hops, number of peers behind Device Based Context-aware Category (CACat) Device ID (DID) Device Parameters (DParam) Tablet Device ID Manufacturer, operating system Monitoring System Device ID Manufacturer, model Others Others Slide 16

17 Fast Peer Discovery Scan Procedure Slide 17

18 Peer Association / Disassociation / Re-association Procedures Association Context Device/user/service-based Unified Association Procedure Includes: distributed association, disassociation, re-association Context-aware Peer and Virtual Leader Selection Context-aware Distributed Association Mutual, group-based, multi-hop Interactive association with discovery Association with channel switching Context-aware Association Update Mutual, group-based, multi-hop Context-aware Disassociation Mutual, group-based, multi-hop Context-aware Re-association Mutual, group-based, multi-hop Context-aware Hierarchical Association Association update When association is triggered, what to do? Which association procedure should be applied? When / why / how? Add block diagram? Slide 18

19 Association Identifier and Association Context Information Association Identifier (AID) DAID: Device-based Association Identifier SAID: Service-based Association Identifier UAID: User-based Association Identifier Association Context Information (ACI) An ACI contains properties and related information of an established association AID, Association Type, Creation Time, Association Duration, Association Priority, Current Status, etc SAID = 1 SAID = 2 Device-based Association (DAID=1) Peer B Peer A Peer B Device-based Association (Request & Response) Service-based Association (Request & Response) Peer A SAID = 1 SAID = 3 UAID = 5 UAID = 4 Peer C User-based Association (Request & Response) Device-based Association (DAID=2) Peer A Peer B UAID = 5 UAID = 6 Device-based Association (DAID=3) Peer D Device/Service/User-based Parallel Association (Request & Response) Slide 19

20 Context-Aware Peer Association Association Request: Requesting association (Approach 1 & 2) Association Request Info: device profile, service profile, user profile, association requirement, etc Association tification: Requesting mutual association (Approach 2) Association tification Info: device profile, service profile, user profile, communication configuration, etc Association Response: Responding association requests (Approach 1 &2) Association Response Info: device profile, service profile, user profile, communication configuration, etc Peer A Association Request (Association Request Info) Peer B Peer A Association Request (Association Request Info) Peer B Acknowledgement Association Response (Association Response Info) Acknowledgement Association tification (Association tification Info) Association Response (Association Response Info) Acknowledgement Acknowledgement Approach 1 Approach 2 Slide 20

21 Synchronization Procedures General assumptions for the synchronization Pair synchronization for single and multi-application Multi-hop synchronization for single and multi-applications Distributed group based synchronization for single and multi-applications Slide 21

22 Channel Management Procedures Fast Inter-P2PNW Channel Accessing Procedure Fast Intra-P2PNW Channel Accessing Procedure Inter-P2PNWs Channel Allocation with P2PNW detection for centralized control for distributed control for hybrid control Inter-P2PNWs Channel Allocation with P2PNW cooperation. for centralized control for distributed control for hybrid control Intra-P2PNW Channel Allocation/Accessing with peer detection for centralized control for distributed control Intra-P2PNW Channel Allocation/Accessing with peer cooperation for centralized control for distributed control Slide 22

23 Fast Inter-P2PNW Channel Accessing Procedure Higher PA layer PD related related Start fast CCDCH accessing Is the channel occupied? Other triggers Scan CCDCH for tscanccdch Wait for tccdch tes 1. for centralized inter-p2pnws control. 2. Follow the DCDCH accessing scheme defined in Figure Parameters tscanccdch: time window for scanning CCDCH tccdch: initial waiting time before detecting the CCDCH again toutccdch: initial timeout for CCDCH accessing tvli: waiting time before detecting the CCDCH again by VLi of P2PNWi toutvli: timeout for CCDCH accessing by VLi tsubvlik: waiting time before detecting the CCDCH again by SubVLik of P2PNWi toutsubvlik: timeout for CCDCH accessing by SubVLik tpeerip: waiting time before detecting the CCDCH again by Peerip of P2PNWi toutpeerip: timeout for CCDCH accessing by Peerip of P2PNWi Is timed out toutccdch? Is SuperVL requesting? Is VLi requesting? Is SubVLik requesting? (Peerip is requesting) - Wait for tvli - Scan CCDCH - Wait for tsubvlik - Scan CCDCH - Wait for tpeerip - Scan CCDCH Is timed out toutvli? Is the channel occupied? Is timed out toutsubvlik? Is the channel occupied? Is timed out toutpeerip? Is the channel occupied? Access on its DCDCH if available 1 Request the VL on DCDCH 1 to access the CCDCH with higher priority. Request the VL on DCDCH 1 to access the CCDCH with higher priority. Access the CCDCH with the peer info & usage - Abort accessing CCDCH - Report to the function entity requesting the CCDCH accessing, i.e. higher layer, PD, PA, others. Slide 23 End CCDCH Accessing

24 Fast Intra-P2PNW Channel Accessing Procedure Higher PA layer PD related related Other triggers Start fast DCDCH i accessing Scan DCDCH i for t ScanDCDCHi Is DCDCH i occupied? Wait for t DCDCHi Is timed out t OutDCDCHi? Is VL i requesting? Is SubVL ik requesting? - Wait for t DSubVLik - Scan DCDCH i Is timed out t DOutSubVLik? Is the channel occupied? (Peer ip is requesting DCDCHi) - Wait for t DPeerip - Scan DCDCH i Is timed out t DPeerip? Is the channel occupied? te 1. For centralized intra-p2pnw control. 2. Parameters t DCDCHi: waiting time before detecting DCDCH i again t OutDCDCH: timeout for DCDCH i accessing t DSubVLik: waiting time before detecting DCDCH i again by SubVL ik t DOutSubVLik: timeout for DCDCH i accessing by SubVL ik t DPeerip: waiting time before detecting DCDCH i again by Peer ip t DOutPeerip: timeout for DCDCH i accessing by Peer ip Slide 24 Access the DCDCH i with peer info & usage End DCDCH i Accessing - Abort accessing DCDCH i - Report to the function entity requesting the DCDCH i accessing, i.e. higher layer, PD, PA, others.

25 Reliable MAC Multicast Transmissions MAC Multicast Scenarios: One-Hop & Multi-Hop Context-Aware Reliable MAC Multicast Flexible Reliability ACK Type (Contained in MAC Data Frame): Full ACK, Partial ACK, Any ACK, Location-based ACK, Context-based ACK, Information-based ACK ACK Collision Avoidance ACK Broadcast, ACK Alignment, ACK Aggregation Data ACK Peer 1 (Source) Peer 1.1 Peer 1.2 Peer 1.3 One-Hop Slide 25 P 2.1 P 2.2 P 2.3 Data ACK Peer 1 (Source) Peer 1.1 Peer P 3.1 P 3.2 Multi-Hop P 1.2 P 1.3 P 1.4

26 Context-aware Power Control Procedures TBD Slide 26

27 TBD Measuring and Reporting Procedures Slide 27

28 TBD Cross Layer Function Slide 28

29 Conclusion TBD Slide 29

30 Contributors InterDigital Communications Corporation Zongrui Ding Hongkun Li Qing Li Paul Russell, Jr. Chonggang Wang Slide 30

31 Thank You Any Questions? Slide 31