1. P802.19.1 System Architecture Date: 16-03-2010 Authors: March 2010
Month Year
doc.: IEEE yy/xxxxr0
March 2010
P System Architecture
Date:
Authors:
Name
Company
Address
Phone
Päivi Ruuska
Nokia
Itämerenkatu 11-13, Helsinki, Finland
Ha Nguyen Tran
NICT
3-4, Hikarino-oka, Yokosuka, Kanagawa, Japan,
Mika Kasslin
Stanislav Filin
Juha Salokannel
Chen Sun
Aziz Rahman
Yohannes D. Alemseged
Gabriel Villardi
Tuncer Baykas
Hiroshi Harada
Notice: This document has been prepared to assist IEEE 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
Chen SUN, NICT

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

3. Acronyms Used in the PresentationAP
Access Point
CDB
Coexistence Database CE
Coexistence Enabler CM
Coexistence Manager
TVBD
Television Band Device WS
White Space
OME
Operator Management Entity
Ruuska (Nokia), Tran (NICT) et al

4. Coexistence Discovery and Information Server
System Architecture
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)
Scope
Interface C
Coexistence Discovery and Information Server
TVWS Database
Interface C
Interface B2
Coexistence Manager
Interface B3
Coexistence Manager
Operator Management Entity
Interface D
Interface B1
Coexistence Enabler
Interface A
TVBD network or device
Ruuska (Nokia), Tran (NICT) et al

5. Logical Entities 802.19.1 logical entity
IEEE logical entity is defined by its functional role(s) and interfaces with other IEEE 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)
Ruuska (Nokia), Tran (NICT) et al

6. Logical Entities 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.
Ruuska (Nokia), Tran (NICT) et al

7. Logical Entities 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.
Ruuska (Nokia), Tran (NICT) et al

8. Logical Entities 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
Ruuska (Nokia), Tran (NICT) et al

9. Logical Interfaces 802.19.1 defines three groups of logical interfaces
Interface between entities
Interface B1
Interface B2
Interface B3
Interface between an entity and TVWS network/devices
Interface A
Interface between 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
Ruuska (Nokia), Tran (NICT) et al

10. Logical Interface A 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
Ruuska (Nokia), Tran (NICT) et al

11. Logical Interface B1 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
Ruuska (Nokia), Tran (NICT) et al

12. Logical Interface B2 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)
Ruuska (Nokia), Tran (NICT) et al

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

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

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

16. Illustration of System Architecture
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
Ruuska (Nokia), Tran (NICT) et al

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

18. Deployment scenario 1
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
Ruuska (Nokia), Tran (NICT) et al

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

20. Deployment scenario 2
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)
Ruuska (Nokia), Tran (NICT) et al

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

22. Deployment scenario 3
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
Ruuska (Nokia), Tran (NICT) et al

23. Summary
This contribution proposed high level system architecture for 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
Ruuska (Nokia), Tran (NICT) et al