Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ITU-R SM.2405-1:2020
• Năm ban hành / Publication date: 2001
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Spectrum management principles, challenges and issues related to dynamic access to frequency bands by means of radio systems employing cognitive capabilities
• Số trang / Page: 78
• Phạm vi áp dụng / Scope of standard: Policy on Intellectual Property Right (IPR) 1 Introduction 2 Definition 3 Related ITU-R Recommendations and Reports 4 General consideration for the use of dynamic spectrum access employing CRS 4.1 Available spectrum resources for the use of dynamic spectrum access employing 4.2 Technical and operational characteristics of CRSs 4.3 Cognitive capabilities of CRSs 5 General considerations on main network elements facilitating DSA 5.1 Geo-location with database access 5.2 Spectrum sensing 6 Issues and spectrum management challenges related to the use of DSA 6.1 General considerations on issues and spectrum management challenges related to the protection of incumbent services. 6.2 Issues and spectrum management challenges related to cross-border coordination 6.3 Issues and challenges related to sensing technology to measure spectrum occupancy 6.4 Issues and frequency spectrum challenges related to the implementation of a DSA‑based applicationAnnex 1 Model of a cognitive system based on geolocation databaseAnnex 2 Sensing technologies 1 Types of sensing technologies 2 Sensing technology using dynamic frequency selectionAnnex 3 Characteristics and/or protection criteria for radiocommunication services for which the allocated bands may be used by CRSs 1 Land mobile and fixed services 2 Mobile-satellite and radiodetermination-satellite services (MSS and RDSS) 3 Other servicesAnnex 4 Studies on Cognitive Radio Systems in EuropeAnnex 5 Studies conducted by the Russian Federation on temporarily unused/unoccupied spectrum in the bands allocated to the broadcasting serviceAnnex 6 Researches on dynamic spectrum access by cognitive radio in ChinaAnnex 7 ATDI experience for TVWS calculations 1 Introduction 2 Approach to build a WSD national database 3 Method overview for TVWS calculations 4 Implementation of TVWS calculation 4.1 TVWS calculation tool 4.1.1 Input data 4.1.2 Proposed calculation method 4.2 Database management tool WSDB 4.3 Online access 5 The regulation authority 6 ATDI TVSW calculation platform 6.1 Overview 6.2 SummaryAnnex 8 Case studies in Botswana 1 Introduction 2 Objectives and target beneficiaries 3 Geographic locations 4 Technical architecture 5 Financing 6 Regulatory components 7 ConclusionAnnex 9 Case studies in Philippines 1 Introduction 2 Strategies 3 Challenges 4 Outcomes 5 ConclusionAttachment to Annex 9Annex 10 Case studies in Korea (Republic of) 1 Introduction 2 Recent regulatory actions 3 TVWS Pilot Projects 4 ConclusionAnnex 11 Case studies in Colombia (Republic of) 1 Introduction 2 TVWS interference measurement 3 Field testing 4 TVWS regulation 5 TVWS deployments