Reconfigurable Radio Systems (RRS)

1. Reconfigurable Radio Systems (RRS) Dr. Gabrielle Owen ETSI TC ERM Chair

2. Overview • Role and Structure of ETSI RRS • Cognitive Radio Activities in RRS – deployments: • dedicated spectrum, • shared spectrum, • secondary usage in dedicated spectrum, and • spectrum dedicated for CRS. • Cognitive Radio in the context of Opportunistic Spectrum Usage • Cognitive Radio / Reconfigurable Radio in Heterogeneous Framework • Conclusions

3. Role and Structure of ETSI RRS • TC RRS’ main responsibility is to carry out standardization activities related to Reconfigurable Radio Systems encompassing both Software Defined Radio (SDR) and Cognitive Radio (CR). • TC RRS has the following Working Group structure: • WG1 focuses on “System Aspects” and develops proposals from a system aspects point of view for a common framework in TC RRS; • WG2 focuses on SDR technology with a particular interest in “Radio Equipment Architecture” and proposes common reference architectures for SDR/CR radio equipment; • WG3 focuses on "Cognitive Management and Control"; the group addresses functionalities for Reconfigurable Radio Systems which are related to the Spectrum Management and Joint Radio Resource Management across heterogeneous access technologies; • WG4 focuses on “Public Safety” and collects and defines the related RRS requirements from relevant stakeholders in the Public Safety and Defense domain.

4. RRS Cognitive Radio Approach • Objective: Provision of more efficient and flexible use of spectrum by • Obtaining knowledge of the radio operational environment and location, • Choosing modes of operation based on available information, • Learning from the results obtained. • Centralized and Decentralized CR System (CRS) Concepts • Four CRS deployment examples are being studied: • dedicated spectrum, • shared spectrum, • secondary usage in dedicated spectrum, • spectrum dedicated for CRS. • The ETSI RRS cognitive radio system concept is illustrated.

5. Cognitive Radio in the context of Opportunistic Spectrum Usage • Use Cases have been developed for TV White Space Usage, in ETSI TR 102 907. These comprise: • Mid-/long range wireless access over TV WS, • Short range wireless access over TV WS, • Ad-hoc networking over TVWS, • Combined Ad-hoc networking and wireless access, • Sporadic use of TV WS, • Backhaul link using TV WS, • MBMS operating in TV WS. • Normative System requirements are under development in TS 102 946 “White Space System requirements for Operation in UHF TV Band”

6. Cognitive Radio / Reconfigurable Radio in Heterogeneous Framework • RR in Mobile Devices: RRS has proposed the SDR BB architecture illustrated • BB Interface related work is in normative phase, system requirements are defined in TS 102 969 • Opportunity: R&TTE Directive (the basic regulatory framework in Europe for wireless communication) is currently under revision. The new revision is expected to allow for usage of “RadioApps”, i.e. SW components affecting radio characteristics of a MD. • A further key requirement is “Dynamic Re-Certificating” which is under development in TR 102 967

7. Conclusions • Cognitive Radio / Software Defined Radio Activities are well advanced within ETSI RRS; • RR work items focus on Mobile Device Architecture, a reconfigurable BB architecture & Interface definitions between distinct stakeholder domains (Device / Component Manufacturer, etc.); • CR work mainly focuses on opportunistic spectrum acces, devices operating in a heterogeneous context – exploiting opportunities related to revised R&TTE Directive; • Note that further activities are ongoing in STF386, related to a development of cognitive interference mitigation techniques for use by PMSE devices (Programme Making and Special Events)

8. Supplementary Slides

9. References / Further reading • ETSI Reconfigurable Radio Systems – Status and Future Directions on Software Defined Radio and Cognitive Radio Standards, Markus Mueck, Antti Piipponen, George Dimitrakopoulos, Kostas Tsagkaris, Fernando Casadevall, Panagiotis Demestichas, Jordi Pérez-Romero, Oriol Sallent, Gianmarco Baldini, Stanislav Filin, Hiroshi Harada, Merouane Debbah, Thomas Haustein, Jebns Gebert, Benoist Deschamps, Paul Bender, Michael Street, Kari Kalliojärvi, Sithamparanathan Kandeepan, Jaswinder Lota, Aawatif Hayar, IEEE Communications Magazine, September, 2010 • ETSI TR 102 802: “Reconfigurable Radio Systems (RRS); Cognitive Radio System Concept”, 2009 • ETSI TR 102 680: "Reconfigurable Radio Systems (RRS); SDR Reference Architecture for Mobile Device", 2009 • ETSI TR 102 681: " Reconfigurable Radio Systems (RRS)); Radio Base Station (RBS) Software Defined Radio (SDR) status, implementations and costs aspects, including future possibilities ", 2009 • ETSI TR 102 682: "Reconfigurable Radio Systems (RRS); Functional Architecture for Management and Control of Reconfigurable Radio Systems", 2009

10. References / Further reading, cont’d ETSI TR 102 683: “Reconfigurable Radio Systems (RRS); Cognitive Pilot Channel (CPC)”, 2009 ETSI TR 102 745: “Reconfigurable Radio Systems (RRS); User Requirements for Public Safety”, 2009 ETSI TR 102 733: “Reconfigurable Radio Systems (RRS); System Aspects for Public Safety”, 2009 ETSI TR 102 799: “Operation methods and principles for spectrum access systems and quality control of used spectrum for PMSE technologies and the guarantee of a high sound production quality on selected frequencies utilising cognitive interference mitigation techniques”, 2010. Draft ETSI TR 103 067 “Feasibility study on for Radio Frequency (RF) performances for Cognitive Radio Systems operating in UHF TV band WS” Draft ETSI TS 102 946 “System requirements for Operation in UHF TV Band White Spaces System requirements for Operation in UHF TV Band WS” Draft ETSI TR 102 947 “Use Cases for building and exploitation of Radio Environment Maps for intra-operator scenarios”

11. References / Further reading, cont’d Draft ETSI TS 102 968 “System requirements for Reconfigurable Radio Systems operating in IMT-Bands and GSM-Bands for intra-operator scenarios” Draft ETSI TR 102 967 “Use Cases for Dynamic Declaration of Conformity” Draft ETSI TS 102 908 “Coexistence Architecture for Cognitive Radio Networks on UHF White Space Frequency Bands” Draft ETSI TR 102 684 “Feasibility Study on Control Channels for Cognitive Radio Systems ” Draft ETSI TS 102 969 “Radio Reconfiguration related Requirements for Mobile