P802.19.1 System Architecture

1. P802.19.1 System Architecture Authors: Date: 16-03-2010 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. Ruuska (Nokia), Tran (NICT) et al

2. This version contains the updates discussed in architecture ad hoc discussions. This contribution proposes P802.19.1 System Architecture It describes logical entities and their interfaces to enable coexistence on TVWS Three deployment examples are described Abstract Ruuska (Nokia), Tran (NICT) et al

3. Acronyms Used in the Presentation Ruuska (Nokia), Tran (NICT) et al

4. Logical entities • Coexistence Manager • Coexistence Enabler • Coexistence Discovery and Information Server • Interfaces • Interface A • Interface B1 • Interface B2 • Interface B3 • Interface C • Interface D • External element • TVWS database • TVBD network or device • Operator management entity (OME) System Architecture 802.19.1 Scope Interface C Coexistence Discovery and Information Server TVWS Database Interface B2 Interface C Interface B3 Coexistence Manager Coexistence Manager Operator Management Entity Interface D Interface B1 Coexistence Enabler Interface A TVBD network or device Ruuska (Nokia), Tran (NICT) et al

5. 802.19.1 logical entity • IEEE 802.19.1 logical entity is defined by its functional role(s) and interfaces with other IEEE 802.19.1 logical entities and with external elements • Three types of logical entities are defined • Coexistence Enabler (CE) • Coexistence Manager (CM) • Coexistence Discovery and Information Server (CDIS) Logical Entities Ruuska (Nokia), Tran (NICT) et al

6. Coexistence Enabler (CE) • Functions related to the functional role of the entity • Request and obtain information, required for coexistence, from TVBD network or device • Translate reconfiguration request/commands and control information received from the CM into TVBD-specific reconfiguration requests/commands and sends them to the TVBD network or device. Logical Entities Ruuska (Nokia), Tran (NICT) et al

7. Coexistence manager (CM) • Functions related to the functional role of the entity • Discovery of other CMs • To solve coexistence problems between the TVBD networks they serve • Coexistence decision making • This includes generating and providing corresponding coexistence requests/commands and control information to CE(s) • Support exchange of information required for coexistence among CMs. • This may include hierarchical and/or peer-to peer decision making capabilities in CM deployments • Assist network operators in management related to TVWS coexistence. Logical Entities Ruuska (Nokia), Tran (NICT) et al

8. Coexistence Discovery and Information Server (CDIS) • Functions related to the functional role of the entity • Support discovery of CMs • Facilitates opening interfaces between CMs • Collect, aggregate, and provide information facilitating coexistence • This includes data storage, data processing, etc Logical Entities Ruuska (Nokia), Tran (NICT) et al

9. 802.19.1 defines three groups of logical interfaces • Interface between 802.19.1 entities • Interface B1 • Interface B2 • Interface B3 • Interface between an 802.19.1 entity and TVWS network/devices • Interface A • Interface between 802.19.1 entities and TVWS database or OME • Interface C • Interface D • Different interfaces in each group are distinguished by their usage, types of information exchanged, and underlying protocols Logical Interfaces Ruuska (Nokia), Tran (NICT) et al

10. Interface between CE and TVBD network or device • From TVBD network or device to CE • Old: Information required for coexistence • New: Information requested for coexistence • New: Configuration/information requests for coexistence • From CE to TVBD network or device • Reconfiguration requests/commands and control information (corresponding to coexistence requests/commands and control information received from CM) • Requests/commands related to control of measurements performed by TVBD network or device Logical Interface A Ruuska (Nokia), Tran (NICT) et al

11. Interface between CE and CM • From CE to CM • Information required for coexistence (information obtained from TVBD network or device) • From CM to CE • Coexistence requests/commands and control information Logical Interface B1 Ruuska (Nokia), Tran (NICT) et al

12. Interface between CM and CDIS • From CM to CDIS • Information required for discovery (obtained by this CM) • Information required for coexistence (obtained by this CM) • From CDIS to CM • Information required for discovery (obtained by other CMs) • Information required for coexistence (obtained by other CMs) Logical Interface B2 Ruuska (Nokia), Tran (NICT) et al

13. Interface between CM and CM • From CM to CM • Information and messages required for discovery and coexistence Logical Interface B3 Ruuska (Nokia), Tran (NICT) et al

14. Interface between CM/CDIS and TVWS DB • From TVWS DB to CM/CDIS • Information required for coexistence (information on available TV channels) Logical Interface C Ruuska (Nokia), Tran (NICT) et al

15. Interface between CM and OME • From OME to CM: • Network operator related information e.g. spectrum policy/limitations concerning operator networks. Logical Interface D Ruuska (Nokia), Tran (NICT) et al

16. To illustrate the proposed System Architecture, three deployment scenarios are presented • Different TVBD networks operated by one operator • Centralized coexistence approach • Different and independently operated TVBD networks or devices (operated by users or some local operators) • Autonomous coexistence approach • Different and independently operated TVBD networks or devices in large-scale metropolitan area • Distributed coexistence approach • Deployment examples may be added as an appendix in SDD Illustration of System Architecture Ruuska (Nokia), Tran (NICT) et al

17. Deployment scenario 1 CDB OME CM TVWS DB TVBD CE TVBD CE TVBD network TVBD network Ruuska (Nokia), Tran (NICT) et al

18. Different TVBD networks operated by one operator: Centralized coexistence approach One CM is managing many CEs (i.e. TVBD networks or devices) CM is placed outside the TVBD devices and network OME provides coexistence policy to CM to assist TVDB devices or networks CDB helps CM in discovering other CM managing TVBD devices/networks in the area Deployment scenario 1 Ruuska (Nokia), Tran (NICT) et al

19. Deployment scenario 2 TVWS DB CDB TVBD TVBD CM CM CE CE TVBD network TVBD network Ruuska (Nokia), Tran (NICT) et al

20. Different and independently operated TVBD networks or devices (operated by users or some local operators): Autonomous coexistence approach CM is placed inside the TVBD devices CDB helps CM discovering other CM managing TVBD devices/networks in the area All CMs may not be connected to TVWS BD (e.g. in sensing only device) Deployment scenario 2 Ruuska (Nokia), Tran (NICT) et al

21. Deployment scenario 3 CM TVWS DB TVBD network cluster CDB TVBD TVBD TVBD TVBD CM CM CM CM CE CE CE CE TVBD network 1 TVBD network 2 Ruuska (Nokia), Tran (NICT) et al

22. Different and independently operated TVBD networks or devices in large-scale metropolitan area: Distributed coexistence approach • These networks are grouped into clusters where each cluster contains two or more networks • Two coexistence problems exist in this scenario • Coexistence problem between individual networks within each cluster due to the interference caused by adjacent networks (Intra-cluster) • Coexistence problem between clusters due to the aggregated interference of each cluster (inter-cluster) • The embedded CMs for decision making provide coexistence decision towards solving the “intra-cluster” coexistence problem • The central CM provides coexistence decision to solve the “inter-cluster” coexistence problem • Based on the previous decisions central CM provides coexistence guidelines, policies, or commands to embedded CMs Deployment scenario 3 Ruuska (Nokia), Tran (NICT) et al

23. This contribution proposed high level system architecture for 802.19.1 SDD • It described logical entities and their interfaces to provide coexistence for TVBD networks and devices • The architecture supports various coexistence deployments scenarios • Three illustrative examples were given Summary Ruuska (Nokia), Tran (NICT) et al