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July Tutorial – Possible Solutions

July Tutorial – Possible Solutions. Authors:. Date: 2010-06-30.

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July Tutorial – Possible Solutions

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  1. July Tutorial – Possible Solutions Authors: Date: 2010-06-30 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. Mika Kasslin, Nokia

  2. Introduction • This slide set contains draft material for 802.19 tutorial on possible solutions to different aspects of the architecture • The slide set is intended to be discussed in the TG1 and reviewed by the group • The slide set will be updated as needed Mika Kasslin, Nokia

  3. Disclaimer “At lectures, symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position, explanation, or interpretation of the IEEE.” IEEE-SA Standards Board Operation Manual (subclause 5.9.3) Mika Kasslin, Nokia

  4. Possible Approach • TVBD networks and devices have mechanisms that are designed for e.g. interference management purposes • CM and CE can and should use those mechanisms for coexistence purposes • 802.19.1 builds upon existing mechanisms in the radio systems and has control functions for that purpose Mika Kasslin, Nokia

  5. Possible Control Parameters • Possible reconfiguration parameters in the TVBD networks • Operating channel • Maximum transmit power • Modulation and coding rate • Bandwidth • OFDMA uplink client sub-band • Transmit scheduling • CSMA parameters • Transmit duty cycle limit • Antenna configurations Mika Kasslin, Nokia

  6. Possible Control Functions • CM’s tool box in coexistence management comprises of tools in three main domains that form the main control functions • Time domain control • Recommendations, commands related to e.g. Transmit scheduling, Transmit duty cycle limit, Modulation and coding rate • Frequency domain control • Recommendations, commands related to e.g. Operating channel, Bandwidth, OFDMA uplink client sub-band • Spatial control • Recommendations, commands related to e.g. Antenna configuration, Maximum transmit power • The 802.19.1 system uses those tools to configure TVBD operations Mika Kasslin, Nokia

  7. Possible Decision Making Topologies • Not sure whether we can rely on one decision making model that can be applied in all the situations and deployments • We need to be prepared to provide means for all three topologies • Centralized • One CM serves all the neighboring networks and provides coexistence services for them • Distributed • Neighboring networks are served by different CMs • Autonomous • Information related to coexistence management is exchanged but that’s all Mika Kasslin, Nokia

  8. Possible Decision Making Topologies (cont.) • All the topologies have common solution elements • Information exchange between entities is needed • We need to provide security and trust • The few main differences are • Is there information exchange between CMs? • In centralized case the CMs have less need if any to exchange information while in the other two cases it is essential for the CMs to exchange information about environment, resource usage, etc. • What is the role of CM? • Centralized and Distributed • CMs are true coexistence managers that run coexistence control functions • In a distributed case the CM may have power over a CM of a neighboring network • Distributed vs. Autonomous • In autonomous case the CM may be only facilitating communication between CEs Mika Kasslin, Nokia

  9. Guiding Questions for the System Development • CE as defined in the SDD • Request and obtain information, required for coexistence, from TVBD network or device • What information we need from TVBD networks and devices? • How do we get the information? • Translate reconfiguration requests/commands and control information received from the CM into TVBD-specific reconfiguration requests/commands and send them to the TVBD network or device • What are the possible coexistence mechanisms? • How they are used in various TVBD networks? • How do we interface to various TVBD networks? Mika Kasslin, Nokia

  10. Guiding Questions for the System Development (cont.) • CM as defined in the SDD • Coexistence decision making • What are the control functions? • What’s needed to support different decision making topologies? • Support exchange of information required for coexistence among CMs • How to exchange coexistence information between decision making entities? Mika Kasslin, Nokia

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