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The Way to Cognitive Spectrum Management

The Way to Cognitive Spectrum Management. Contents. 1. The Current State of Spectrum Management. 2. The Challenge of Spectrum Management. Existing Scheme of Cognitive Spectrum Management. 3. 4. Some Views on TV White Space. 5. The Way to Cognitive Spectrum Management.

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The Way to Cognitive Spectrum Management

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  1. The Way to Cognitive Spectrum Management

  2. Contents 1 The Current State of Spectrum Management 2 The Challenge of Spectrum Management Existing Scheme of Cognitive Spectrum Management 3 4 Some Views on TV White Space 5 The Way to Cognitive Spectrum Management

  3. Fixed Spectrum Allocation • Source: http://www.baisi.net/viewthread.php?tid=1332118

  4. Spectrum Usage Measurements Averaged over Six Locations [American] • Source: Amir Ghasemi, et. al, Spectrum sensing in cognitive radio networks: requirements, challenges and design trade-offs, IEEE communications magazine, Apr. 2008,pp. 32-39 The relatively low utilization of the licensed spectrum suggest that spectrum scarcity is largely due to inefficient fixed frequency allocations rather than any physical shortage of spectrum

  5. Contents 1 The Current State of Spectrum Management 2 The Challenge of Spectrum Management Existing Scheme of Cognitive Spectrum Management 3 4 Some Views on TV White Space 5 The Way to Cognitive Spectrum Management

  6. Spectrum Opportunistic

  7. Cognitive Cycle • Source: Ian F. Akyildiz, et. al, NeXt generation/dynamic spectrum access/cognitive radio wireless networks: A survey, Elsevier Computer Networks, May. 2006, pp. 2127-2159

  8. Utilization of Spectrum Opportunistic • Overlay • Just utilize spectrum opportunistic which primary users is unused in temporal, frequency and spatial • Underlay • Limited transmit power to avoid interference to users including primary users or other secondary users.

  9. Contents 1 The Current State of Spectrum Management 2 The Challenge of Spectrum Management Existing Scheme of Cognitive Spectrum Management 3 4 Some Views on TV White Space 5 The Way to Cognitive Spectrum Management

  10. FP7 Project : E3 • design, develop, prototype and showcase solutions to guarantee interoperability, flexibility and scalability between existing legacy and future wireless systems • manage the overall system complexity • ensure convergence across access technologies, business domains, regulatory domains and geographical regions 商业与系统模型研究 认知系统的管理功能 原型验证 • Source: https://ict-e3.eu/

  11. IEEE SCC41 • OSM-Operator Spectrum Manager • NRM-Network Reconfiguration Manager • TRM-Terminal Reconfiguration Manager

  12. IEEE SCC41 Use Cases: Dynamic spectrum assignment Single Operator Scenario

  13. IEEE SCC41 Use Cases: Dynamic spectrum assignment Multiple Operator Scenario ( NRM is inside operators)

  14. IEEE SCC41 Use Cases: Dynamic spectrum assignment Multiple Operator Scenario ( NRM is outside operators)

  15. IEEE SCC41 Use Cases: Dynamic spectrum sharing

  16. IEEE SCC41 Use Cases: Distributed radio resource usage optimization

  17. Contents 1 The Current State of Spectrum Management 2 The Challenge of Spectrum Management Existing Scheme of Cognitive Spectrum Management 3 4 Some Views on TV White Space 5 The Way to Cognitive Spectrum Management

  18. FCC • On 4 November 2008, the FCC adopted a report setting out rules allowing license-exempt cognitive devices to operate in interleaved spectrum

  19. OFCOM • On 16 February 2009, OFCOM releases the document “Digital dividend: cognitive access-Consulation on licence-exempting cognitive devices using interleaved spectrum”. • Allow cognitive access as long as we were satisfied that it would not cause harmful interference to licensed uses

  20. Europe Commission • Task Group 4 of the European conference of Postal and Telecommunications administrations (CEPT) work on a pan-European specification for cognitive devices. • This work is currently at an early state. • The outcome of OFCOM will contribute to this work.

  21. Contents 1 The Current State of Spectrum Management 2 The Challenge of Spectrum Management Existing Scheme of Cognitive Spectrum Management 3 4 View from Some Regulators 5 The Way to Cognitive Spectrum Management

  22. Cognitive Spectrum Management To identify causal or correlative connections and makes rational decisions To observe the surrounding environment and recognize Deciding Cognitive Spectrum Management Cycle Observing Reacting To manipulate the knowledge from experience and lessons and augment the list available actions to the system To adapt the corresponding means Learning

  23. Cognitive Dimension Cognitive Dimension • Spectrum Resource • Licensed spectrum band • TV band • Cellular spectrum band • Etc • Unlicensed spectrum band • ISM band • Cognitive Access • Sensing • Geolocation Database • Beacon reception • Cognitive Parameter • Sensing parameters • Geolocation parameters • Etc. Cognitive Policy …

  24. Cognitive Access Spectrum Phase 1 Phase 2 Phase 3 • Spectrum allocation policy update • Reservation special spectrum band (such as military use) • Dynamic spectrum access for all band of business use Cognitive access to other White Space (except for special spectrum band such as military ) Cognitive access to the TV White Space

  25. Thank You www.huawei.com

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