September 2010
doc.: IEEE 802.19-10/129r0
IEEE 802.19.1 System description
Date: 2010-09-14
Authors:
Name
Company
Address
Phone
Junho Jo
LG Electronics, Inc.
Jihyun Lee
LG Electronics, Inc.
LG R&D Complex 533,
+82-31-450-1911
Hogye-1dong, Dongan-Gu,
Anyang-Shi, Kyungki-Do,
431-749, Korea
LG R&D Complex 533,
+82-31-450-1911
Hogye-1dong, Dongan-Gu,
Anyang-Shi, Kyungki-Do,
431-749, Korea
email
junho.jo@lge.com
jihyun1220.lee@lge.com
Notice: This document has been prepared to assist IEEE 802.19. 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.
Submission
Slide 1
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Abstract
• This presentation based on LG Proposal on the system
description clause and reference model clause
• In this presentation, We suggest additional functional
roles of CDIS; Coexistence Whitespace Map(CWM),
Master CM Selection and its reference model
Submission
Slide 2
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Hierarchical topology
TVWS DB
CDIS
Packet based
network
CM
Core
network
Core
network
CM
Submission
AP
AP
CM
CM
CE
CE
AP
AP
CM
CE
CE
Slide 3
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
CDIS functionalities
• Centralized resource (spectrum) manager
– Control CMs/operators in management related to TVWS coexistence
• Get information from TVWS DB
– Available TVWS channel set at specific geological points
• Computes Coexistence contour
– Especially for neighbor discovery between different systems willing to
operate on TVWS
• Makes Coexistence Whitespace Map (CWM)
– For efficient frequency resource sharing between different systems
• Master CM Selection
– To solve coexistence problems and reduce communication overhead
between CMs
Submission
Slide 4
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Coexistence Contour
• To discover neighbor systems, computes coexistence
contour between different systems/networks willing to
operate on TVWS
• Calculated by CDIS identifying neighbor network
devices for coexistence
• Coexistence contour will be decided by its own each
network’s TX power, other physical parameters and
propagation models that might be considered
simultaneously
Submission
Slide 5
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Coexistence Whitespace Map(CWM)
• Channel allocation by CDIS
– Each representative of networks/devices is connected to CDIS
making the information of each open to public
• CWM from CDIS to each CM’s
TVWS DB
CDIS
CM1
CWM
CM2
Submission
Slide 6
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Master CM Selection
• To solve coexistence problems and reduce
communication overhead between CMs
• Master CM serves all the neighboring networks
• CDIS selects master CM and notifies information to
CMs
Submission
Slide 7
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Reference model
• COEX_NET_SAP
– Support COEX information and message with the remote 19.1
Entity. It may support interface B1, B2, B3, C, D
• COEX_LINK_SAP
– Media dependent interface of COEX function with the lower layers
of the media specific protocol stacks. It may support interface A
Submission
Slide 8
Junho Jo/Jihyun Lee, LG Electronics
September 2010
doc.: IEEE 802.19-10/129r0
Conclusion
• In this presentation, we review our proposal on system
description and reference model
• Our proposal focus on CDIS functionalities
– Coexistence Whitespace Map(CWM)
– Master CM Selection
• Design reference model
Submission
Slide 9
Junho Jo/Jihyun Lee, LG Electronics