1. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
19 March, 2002
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [TG3 Coexistence capabilities]
Date Submitted: [19 March 2002]
Source: [Pierre Gandolfo] Company [XtremeSpectrum Inc.] Address [1001 N Rengstorff Avenue, Suite 200, Mountain View, CA, 94043] Voice [(650) ], Fax [(650) ],
[James P. K. Gilb] Company: [Appairent Technologies]
Address: [9921 Carmel Mountain Rd. #247, San Diego, 92129]
Voice:[ ], FAX: [ ],
Re: []
Abstract: [ Overview – High Rate WPAN Standard.]
Purpose: [To present information about the draft standard for the March WWG interim meeting.]
Notice: 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
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies
<author>, <company>

2. HR WPAN (802.15.3) Value Proposal
19 March, 2002
HR WPAN ( ) Value Proposal
High Rate WPAN enables multimedia connectivity between portables devices within personal operating space
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

3. Ad-hoc network with Multimedia QoS provisions
19 March, 2002
Main Characteristics
High Rate WPAN:
Short Range (at least 10m)
High Data rates (currently up to 55Mb/s, to be increased by SG3a)
Dynamic Topology:
Mobile devices often join and leave piconet
Short connection time (<1s)
Ad-hoc network with Multimedia QoS provisions
TDMA for streams with time based allocations
Peer to peer connectivity
Multiple Power Management Modes:
Designed to support low power portable devices
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

4. Low price point, low complexity and small form factor Secure Network:
19 March, 2002
Main Characteristics
Low price point, low complexity and small form factor
Secure Network:
PK authentication
Shared Key encryption (AES 128) and integrity (data and commands, SHA-2)
Ease-of-use:
Dynamic coordinator selection and handover
Key distribution and management (PK)
Does not rely on a backbone network
Designed for relatively benign multipath environment:
Personal or home space (RMS delay spread <25ns)
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

5. 802.15.3 Main Applications Video and audio distribution:
19 March, 2002
Main Applications
Video and audio distribution:
High speed DV transfer from a digital camcorder to a TV screen
HD MPEG2 between video players/gateways and HD display
Home theater
Computer graphics
Interactive video gaming
High speed data transfer:
MP3 players
Personal home storage
Printers & scanners
Digital still cameras to/from kiosk
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

6. 19 March, 2002
Qualities of the MAC
Centralized and connection-oriented ad-hoc networking topology:
The coordinator (PNC) maintains network synchronization timing, performs admission control, assigns time for connection between devices (DEV), manages PS requests,…
DEV’s, which are not required to be coordinator capable
Communication is peer to peer
Support for multimedia QoS:
TDMA superframe architecture with Guaranteed Time Slots (GTS)
Authentication, encryption and integrity
Multiple power saving modes (asynchronous and synchronous)
Multiple ACK policies (No ACK, Imm-ACK, Del-ACK and implied ACK)
Simplicity:
All QoS negotiations and flow control handling are done at layer 3
PNC only handles channel time requests
Robustness:
Dynamic channel selection, TX power control per link
PNC handover
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

7. Scalable Security Capabilities
19 March, 2002
Scalable Security Capabilities
Mode 0 is no security
Mode 1 allows the user to restrict access to the piconet
Mode 2 provides cryptographic authentication and command integrity.
Mode 3 provides data protection, command and data integrity as well as authentication. This mode also allows the use of digital certificates.
The security modes above mode 0 are optional
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

8. 19 March, 2002
Superframe Structure
Time-slotted superframe structure consists of 3 sections:
Beacon:
transmits control information to the entire piconet, allocates resources (GTS) per stream ID for the current superframe and provides time synchronization
Optional 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
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

9. GTS and MTS Slots GTSs may have different persistence MTS
19 March, 2002
GTS and MTS Slots
GTSs 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 the GTS positions, but needs to communicate and confirm with both Tx and Rx DEVs
Variable 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
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

10. Channel Time Request Command
19 March, 2002
Channel Time Request Command
Octets: 1 1
Stream Index 1
Stream Request ID 1
SPS Set Index 1
Stream CTR Control 2
CTR Interval 2
CTR Time Unit 1
Minimum CTR Time Units 1
Desired CTR Time Units
Target DEVID
Command directly sent to the PNC for the 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
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

11. 2.4GHz PHY 5 selectable data rates: 15 MHz channel bandwidth
19 March, 2002
2.4GHz 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: approximately 8 dBm
Coexistence:
Compared to , an GHz PHY system causes less interference since it occupies a smaller bandwidth and transmits at lower power levels
Provides for dynamic channel selection
Per link dynamic power control
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

12. Alternate PHY Study Group (802.15.3a)
19 March, 2002
Alternate PHY Study Group ( a)
has created a Study Group to investigate the creation of an alternate PHY to address very high data rate applications
Goal of > 10 m, > m
1394a, USB2.0 HS cable replacement
DV50, DV100, HD DVD, High resolution printer and scanner, fast download speed for MP3 players, digital still cameras
Currently reviewing Application Presentations and developing requirements documents
Expect to establish a Task Group in July
UWB is a potential candidate for these VHR WPAN applications
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

13. 19 March, 2002
Wireless 1394 Bus
/a to interconnect multiple 1394 wireless devices within a room
HL2-DM or a/e as a bridge to interconnect multiple clusters located in different rooms
Living Room Cluster
Kids’ room Cluster
802.11a/e or HL2_DM Bridge
Isochronous resource Manager (selected PNC) will allocate bandwidth
The Wireless Cycle Master role within a cluster can be played by any DEV
CL may or may not support bridging
Will support Bus reset and allocation of 1394 Physical-ID for the piconet
Address Resolution Protocol will not be implemented in the MAC
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies

14. Wireless 1394 Implementation
19 March, 2002
Wireless 1394 Implementation
Applications
Configure & Error Control
Rd, Wr, lock
Video Codec
Transaction Layer
Serial Bus Mgmt (Bus Mnger, IRM, Node Controller)
Asynchronous Port FW
Synchronous Port
1394-SSCS
FW/HW
MAC CPS
MAC
PHY
The Convergence Sublayer (1394 SSCS) is needed 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 would transport wired-1394 asynchronous & isochronous packets over the wireless network and also provide 1394 clock distribution
Pierre Gandolfo, XtremeSpecturm Inc.
James P. K. Gilb, Appairent Technologies