1 Status of Professional Portable Terminals 7

1.1 Core Concepts 7

1.1.1 Portable Terminals on Private Network 7

1.1.2 Portable Terminals on Public Network 7

1.1.3 Hybrid Portable Terminals on Private-Public Network 7

1.2 Visions 8

2 Performance of 5G Professional Portable Terminals 10

2.1 Large bandwidth 10

2.2 High reliability and low latency 10

2.3 Cloud-based office 11

2.4 Trunking services 11

2.5 Classification of 5G Industrial Handheld Terminals 11

3 Ability demanded 5G Professional Portable Terminals 13

3.1 Basic cellular communication capability 13

3.1.1 mode and frequency band 13

3.1.2 Network access capability 13

3.1.3 antenna 14

3.1.4 Transmitting power 14

3.1.5 Reception sensitivity 14

3.1.6 rate 14

3.1.7 The time delay 16

3.1.8 Text messages 16

3.1.9 Slice 16

3.2 Hardware and reliability requirements 16

3.2.1 Processor 16

3.2.2 Built-in storage 16

3.2.3 Electromagnetic compatibility 16

3.2.4 SIM/USIM card 16

3.2.5 USB 17

3.2.6 Memory card 17

3.2.7 Upgrade function 17

3.2.8 WLAN function 17

3.2.9 Positioning ability 17

3.3. Enhanced Functions 17

3.3.1 NFC 17

3.3.2 Trunking functions 17

3.3.3 Three Preventions 18

3.3.4 Explosion Protection 18

3.3.5 Security Functions 18

4. Applications and Tests on 5G Industrial Handheld Terminals 19

4.1 5G Industrial Handheld Terminals and Their Applications 19

4.1.1 Standard 5G Industrial Handheld Terminals 19

4.1.2 Professional 5G Industrial Handheld Terminals 21

4.2 Test Requirements of 5G Industrial Handheld Terminals 25

4.2.1 Communication capability testing requirements 25

4.2.2 Test Requirements on Service Capability 27

5 Appendix 30

5.1 Appendix 1 Adaptability Test in Mechanical Environment 30