1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Description of USN services, USN middleware and use cases
6.1 Description of USN services
6.2 Description of USN middleware
6.3 Use cases of USN services
7 Functional model of USN middleware
7.1 Open application interface processing
7.2 Basic functions
7.3 Advanced functions
7.4 Sensor network common interface processing
7.5 Security service
8 Requirements for USN middleware
8.1 Interface requirements
8.2 Functional requirements
8.3 Security requirements
Bibliography