IEEE 802.15.3c <subject>

1
Project IEEE P802.15 Working Group for Wireless
Personal Area Networks (WPANs) Submission Title
CFA Response Ad-hoc information distribution
with P-P network extension Date Submitted 17
March, 2005 Source Yozo Shoji and Hiroyo
Ogawa Company National Institute of
Information and Communications Technology,
I.A.A. Address 3-4, Hikarino-Oka, Yokosuka,
Kanagawa, 234-0051, Japan Voice81.46.847.5070
, FAX [phone], E-Mail
hogawa_at_nict.go.jp Re IEEE P802.15.SG3c Call
For Applications, IEEE P802.15-04/240r2, 12 May,
2004 Abstract Description of an application
for mmW WPANs Purpose Proposal of an
application for mmW WPANs. Notice This document
has been prepared to assist the IEEE P802.15. 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 P802.15.
2
Ad-hoc information distribution with P-P network
extension
Proposal of Channel allocation and Frame format
concept for mmW WPAN application
3
Requirements for mmW WPAN channel allocation and
frame format

• Support of very broadband transmission in
  selective channels
• Support of various applications whose required
  data rate is changed widely
• Coexistence of digital communication channels and
  through repeated channels

4
Concept of channel allocation for mmW WPAN

• Multiple sub-carrier channels based on FDMA/TDMA
  coexistence format
• Common standardized access channels based on
  time-synchronized multi-carrier TDMA
• Optional FDM/FDMA extension channels, in which
  digital channels and through-repeated channels
  coexist

5
Frame format of common standardized channel

• Frame format of Common Standardized access
  channels is basically based on 802.15 MAC frame
• PNC allocates not only contention free time slot
  but also optional FDM/FDMA extension channel to
  DEV on demand
• All the information about channel allocation is
  broadcasted in the initiation of contention free
  period

6
Frame format of optional FDM/FDMA extension
channel
Not Specified

• Frame format of digital modulated channels in the
  optional extension channels are the same as that
  of contention free period in 802.15.3 MAC frame,
  but occupied by only one specific DEV
• Frame format of through-repeated channels in the
  optional extension channels are not specified

7
Broadband ad-hoc meeting in a office-room

• Particular case when one PNC exists and occupies
  a large number of optional FDMA channels for data
  broadcasting
• Common standardized band uses TDMA based channels
  working on 802.15.3MAC, and is used for joining
  and leaving the piconet control, allocating
  optional FDMA channels, and relatively low-rate
  data communications

Common Standardized Band
Optional FDMA Band
8
Broadband ad-hoc meeting in a office-room (cont)
Data rate requirement
Sharing of PNCs display 1 Gbps (? uncoded RGB data)
Contents sharing among DEVs Over 100 Mbps / DEV
Frequency channel allocation plan1
Common Standardized Band 700 MHz (4 subcarrier channels)
Optional FDMA Band 1.2 GHz (8 subcarrier channels used by PNC at maximum) 700 MHz (4 subcarrier channels for DEV)
1) 156 Mbps QPSK subcarrier with 0.5 roll off
index and additional 50 guard band is assumed
9
Contents distribution to DEVs with P-P link
extension in an exhibition hall or other public
places

• Uncoded real time video data channels included in
  optional FDMA band
• Optional FDMA band is dynamically divided into
  some group channels corresponding to the piconet

Common Standardized Band
Optional FDMA Band
10
Contents distribution to DEVs with P-P link
extension in an exhibition hall or other public
places (cont)
Data rate requirement
Contents download/distribution (USB2.0 based) 480 Mbps
Contents download/distribution (IEEE1394S3200 based) 3.2 Gbps
Frequency channel allocation plan1
Common Standardized Band 700 MHz (4 subcarrier channels)
Optional FDMA Band 3.5 GHz for data (The maximum number of allowable data channels is 20)
1) 156 Mbps QPSK subcarrier with 0.5 roll off
index and additional 50 guard band is assumed
11
On-demand transmission or/and re-broadcasting of
video/data signal for ad-hoc terminals

• Re-broadcasting and relay of hundreds channels of
  broadcast coded video signals occupies most of
  the optional FDMA band
• Coexistence of broadcast video channels,
  on-demand video channels, and broadband data
  communications channels in optional FDMA band

Common Standardized Band
Optional FDMA Band
12
On-demand transmission or/and re-broadcasting of
video and data signal for ad-hoc terminals (cont)
Data rate requirement
Internet / control 100 Mbps
Broadcast Video 1 GHz (BS/110CS)2GHz (CS) 800 MHz (Terrestrial)
Common Standardized Band
Optional FDMA Band
Frequency channel allocation plan1
Common Standardized Band 700 MHz (4 subcarrier channels)
Optional FDMA Band 3.8 GHz (The maximum bandwidth for broadcast video channels)
1) 156 Mbps QPSK subcarrier with 0.5 roll off
index and additional 50 guard band is assumed
13
Conclusions

• Concept of dynamic optional FDM/FDMA channel
  extension for mmW WPAN is proposed for mmW WPAN
  applications
• Subcarrier based multi-channel signal format
• Common standardized TDMA channels working on
  802.15.3MAC
• Optional FDM/FDMA channels are used for
  broadcast/multicast in proposed applications