Project 1 Understanding Mobile Network························································1Task1 Overview of5 G Mobile Networks·..........................................................·21.1.1 5G Overview················································································21.1.2 Key Technologies of5 G·.................................................................·41.1.3 5G Application Scenarios ..............................................................·10Task 2 A Brief Risto ry of Mobile Communication Developm ent .·.·.·.·.·.·.·.·.·.·.·.·.·.·.·15121 . . First-Generat10n Mobile Commumcat10n System ····················.··············161.2.2 Second Generation Mobile Communication System ································161.2.3 Third Generation Mobile Communication System .................................·171 2 4 . . Fourth-Generat10n Mobile Commun1catlon System····················.············18Task 3 5G Network Architecture .·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·191.3.1 Changes in 5G Network Architecture ·················································191.3.2 5G NetworkArchitectu re································································28Task 4 Division of Labor and Job Aw areness in 5G In dustr y--··································311.4.1 5G Industry Chain········································································321.4.2 Job Awareness of5 G Industry ·.......................................................·.33Project 2 Site Survey················································································35Task 1 Site Survey ......................................................................352.1.1 Base Station Construction Method·····················································36212 . . Reqmrements for Base Station Survey ················································382.1.3 Survey for Newly-Built Base Stations··································.··············422.1.4 fC Survey o o-Located Base Stat10n...................................................·44Task 2 Prepare for Site Construct10n.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·....·.·.·.·.·.·.·.·.·.··472.2.1 The Surrounding Environment of the Site Shall Meet Construction Conditions 482.2.2 The Equipment Room Should Meet Construction Conditions....................·492.2.3 Ante皿a Pole Shall Meet Construction Conditions.................................·512.2.4 Cable Trays Shall Meet Construction Conditions····································532.2.5 The Tower or Cable Tray Shall Have the Grounding Construction Conditions ·542.2.6 Record of Preparatory Work Before Construction····················.··············54Task 3 Engmeering Construct10n Management····················································542.3.1 Identification of Hazard Sources and Countermeasures on the Engineering Site 552.3.2 Construction Specification for 5G Mobile Network Engineering ················.572.3.3 Civil Engineering Construction Specifications ······································.642.3.4 Construction Specifications for Equipment Installation Engineering ············.66Task 4 Single Site Acceptance ······································································.702.4.1 Overview ·················································································.712.4.2 Engineering Acceptance ································································.722.4.3 Performance Acceptance ·······························································.85Project 3 Network Maintenance ·································································.88Task 1 Deploy and Connect Devices ·······························································.883.1.1 Installation Overview ···································································.893.1.2 Safety Matters ············································································.913.1.3 Preparations for Installation ····························································.923.1.4 Device Installation·······································································.943.1.5 Installation of Auxiliary Equipment ··················································.963.1.6 Cable Installation ········································································.983.1.7 Finishing Work ··········································································.102Task 2 Parameter Planning ·········································································.1033.2.1 Significance of Parameter Planning ··················································.1033.2.2 Network Planning Process ····························································.1073.2.3 Parameter Planning Principles ························································.110Task 3 5G Parameters Setting ······································································.1143.3.1 Preparations ·············································································.1153.3.2 Setting Global Parameters ·····························································.1163.3.3 Setting Device Parameters ····························································.1173.3.4 Setting Transmission Parameters ·····················································.118Task 4 Cell Parameter C