19 March 2002 doc IEEE 802 15 02157

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Project: IEEE P 802. 15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [TG 3 Coexistence capabilities] Date Submitted: [19 March 2002] Source: [Pierre Gandolfo] Company [Xtreme. Spectrum Inc. ] Address [1001 N Rengstorff Avenue, Suite 200, Mountain View, CA, 94043] Voice [(650) 230 0494], Fax [(650) 938 -7071], E-mail [pgandolfo@xtremespectrum. com] [James P. K. Gilb] Company: [Appairent Technologies] Address: [9921 Carmel Mountain Rd. #247, San Diego, 92129] Voice: [1 -858 -538 -3903], FAX: [1 -858 -538 -3903], E-Mail: [gilb@ieee. org] Re: [] Abstract: [802. 15. 3 Overview – High Rate WPAN Standard. ] Purpose: [To present information about the 802. 15. 3 draft standard for the March 2002 1394 WWG interim meeting. ] Notice: This document has been prepared to assist the IEEE P 802. 15. 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 802. 15. Submission 1 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 HR WPAN (802. 15. 3) Value Proposal High Rate WPAN enables multimedia connectivity between portables devices within personal operating space Submission 2 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 802. 15. 3 Main Characteristics • High Rate WPAN: – Short Range (about 10 m) – High Data rates (up to 55 Mb/s) • Dynamic Topology: – Mobile devices often enter and exit piconet – Short connection time (<1 s) • • Ad-hoc network with Multimedia Qo. S provisions Multiple Power Management Modes: – Designed to support low power portable devices • • Low price point, low complexity and small form factor Secure Network: – PK authentication (still TBD) – Shared Key encryption (still TBD) and integrity • Ease-of-use: – Dynamic coordinator Selection and handover – Key distribution and management (PK) – Does not rely on a backbone network • Designed for benign multipath channels: – Personal or home Space (RMS delay spread<25 ns) Submission 3 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 HR WPAN (802. 15. 3) Value Proposal High Rate WPAN enables multimedia connectivity between portables devices within personal operating space Submission 4 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 802. 15. 3 Main Applications • Video and audio distribution: – – – High Speed DV transfer from a digital camcorder to a TV screen HD MPEG 2 between video players/gateways and HD display Home Theater Computer graphics Interactive video gaming • High Speed Data transfer: – – Submission MP 3 players Personal Home storage Printers & scanners Digital still cameras and Kiosk 5 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Qualities of the 802. 15. 3 MAC • Centralized and connection-oriented ad-hoc networking topology: – The coordinator (PNC) maintains network synchronization timing, performs admission control, assigns time for connection between 802. 15. 3 devices (DEV), manages PS requests, … – DEV’s • • Communication is Peer to Peer Support for MM Qo. S: – TDMA superframe architecture with Guaranteed Time Slots (GTS) • • Mutual Authentication, encryption and integrity Multiple PS Modes (Reduced PS, Extended or TIM PS) Multiple ACK policies (No ACK, Imm-ACK, Del-ACK and implied ACK) Simplicity: – All Qo. S negotiations and flow control handling are done at layer 3 – PNC only handles channel time requests • Robustness: – Dynamic Channel Selection, repeater service, Tx power control per link – PNC handover Submission 6 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Superframe Structure Time-slotted superframe structure made of 3 sections: • Beacon: transmits control information to the entire piconet (Max tx power, synchronization, allocation of resources (GTS) per stream ID for the incoming superframe • CAP (CSMA/CA): – used for authentication/association request/response, stream parameters negotiation, … (command frames) – PNC can replace the CAP with MTS slots using slotted Aloha access • CFP made of: – Unidirectional Guaranteed Time Slots (GTS) assigned by the PNC for isochronous or asynchronous data streams – Optional Management Time Slots (MTS) in lieu of the CAP for command frames Submission 7 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 GTS and MTS Slots • GTS may have different persistence – Dynamic GTS: position in superframe may change from superframe to superframe (Beacon CTA IE or broadcast channel time Grant command) – Pseudo-static GTS (isochronous streams): PNC may change position, but needs to communicate and confirm with both Tx and Rx DEVs – Guard times between adjacent slots to prevent collision (clock drift) • MTS – Open & Dedicated MTS: Used for PNC/DEV communication – Association MTS – Number of MTS per superframe is controlled by the PNC Submission 8 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Channel Time Request Command 8 8 8 16 16 8 8 Target DEVID Stream Index Stream Request SPS Set Index Stream CTR Control CTR Interval CTR Time Unit Minimum CTR Time Units Desired CTR Time Units ID • • Command directly sent to the PNC for Stream <source DEV-ID, Target DEV-ID, Stream index> Stream CTR Control: – Indicates if this is a request for the creation of a new stream or the modification of an existing stream, – Also contains the “CTR interval type” field that specifies the number of slots per superframe (0) or the number of superframes per slot (1), – Selects the GTS type (pseudo-static or dynamic) • • CTR time Unit: Unit of time used by the device. Ex: [frame, ACK, SIFS] Min Channel Time Request = CTR_Time_Unit * Min. CTR units Submission 9 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 2. 4 GHz PHY • 5 selectable data rates: – 11, 22, 33, 44, 55 Mb/s – 11 Msymbol/s – Modulation formats: BPSK, QPSK (no coding), 16, 32, 64 QAM (8 -state Trellis code) • • 15 MHz channel bandwidth 3 or 4 non-overlapping channel Transmit Power: 0 -4 d. Bm Coexistence: – Compared to 802. 11, an 802. 15. 3 2. 4 GHz PHY system causes less interference since it occupies a smaller bandwidth and transmits at lower power levels Submission 10 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Alternate PHY Study Group (802. 15. 3 a) • 802. 15. 3 has created a Study Group to investigate the creation of an alternate PHY to address very high data rate applications – (>> 100 Mbps) – 1394 a, USB 2. 0 HS cable replacement – DV 50, DV 100, HD DVD, High resolution printer and scanner, fast download speed for MP 3 players, digital still cameras • Currently reviewing Application Presentations and developing requirements documents • PAR and 5 C in May (TBR) • UWB could be a potential candidate for these VHR WPAN applications Submission 11 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Wireless 1394 Bus • • 802. 15. 3/a to interconnect multiple 1394 wireless devices within a room HL 2 -DM or 802. 11 a/e as a bridge to interconnect multiple clusters located in different rooms Living Room Cluster Kids’ room Cluster 802. 11 a/e or HL 2_DM Bridge • • • Isochronous resource Manager (selected PNC) will allocate bandwidth The Wireless Cycle Master role within a cluster can be played by any DEV 802. 15. 3 1394 CL will not support bridging Will support Bus reset and allocation of 1394 Physical-ID for the piconet Address Resolution Protocol will not be implemented Submission 12 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies

19 March, 2002 doc. : IEEE 802. 15 -02/157 r 0 Wireless 1394 Implementation Applications • • • Rd, Wr, lock Asynchronous Port 1394 -SSCS MAC CPS 802. 15. 3 MAC 802. 15. 3 PHY Video Codec Synchronous Port FW/HW Transaction Layer Controller) Serial Bus Mgmt (Bus Mnger, IRM, Node FW Configure & Error Control The Convergence Sublayer (1394 SSCS) need to mimic the functions provided by the 1394 link layer Services & Primitives provided by 1394 SSCS are a subset of those provided by the wired 1394 physical & link stacks (no cable environment) 1394 SSCS transports wired-1394 asynchronous & isochronous packets over the wireless network and also provides 1394 clock propagation Submission 13 Pierre Gandolfo, Xtreme. Specturm Inc. James P. K. Gilb, Appairent Technologies