September 2010 doc IEEE 802 19 10129 r

September 2010 doc. : IEEE 802. 19 -10/129 r 0 IEEE 802. 19. 1 System description Date: 2010 -09 -14 Authors: 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 -10/129 r 0 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 -10/129 r 0 Hierarchical topology TVWS DB CDIS Packet based network CM 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 -10/129 r 0 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 -10/129 r 0 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 -10/129 r 0 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 CM 1 CWM CM 2 Submission Slide 6 Junho Jo/Jihyun Lee, LG Electronics

September 2010 doc. : IEEE 802. 19 -10/129 r 0 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 -10/129 r 0 Reference model • COEX_NET_SAP – Support COEX information and message with the remote 19. 1 Entity. It may support interface B 1, B 2, B 3, 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 -10/129 r 0 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