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 Concept of universal communication module of mobile IoT devices
7 Universal communication module classification
7.1 Universal communication module characteristics
7.2 Universal communication module classification factors
8 Mechanical requirements
8.1 Mechanical requirements for small size universal communication
module
8.2 Mechanical requirements for normal size universal communication
module
9 Electrical requirements
9.1 Power supply interface
9.2 Module control and status interface
9.3 RF interface
9.4 SIM/USIM interface
9.5 Data input/output interfaces
9.6 Analogue interface
9.7 Audio interface
10 Software requirements
10.1 Universal communication module management
10.2 Debugging function
10.3 Minimum AT commands
11 Performance requirements
11.1 Storage
11.2 Temperature
Appendix I − Use cases for universal communication module of mobile IoT
devices
I.1 Smart utility metering
I.2 Smart home
Appendix II − Universal communication module reference types
II.1 Universal communication module reference Type 1
II.2 Universal communication module reference Type 2
II.3 Universal communication module reference Type 3
II.4 Universal communication module reference Type 4
Bibliography