B5G 衛星通訊頻譜規劃 6G 頻譜規劃 B5G 電信服務模式 新興無線通訊使用頻譜規劃 無線電頻率整備及供應 5G DNS 物聯網設備互聯 網路切片 網際網路分裂 電信編碼 Network 2030 電信資源國際標準組織 B5G satellite communication test frequency assign and spectrum allocation, 6G spectrum prepare, B5G telecommunication service model new radio frequency supply planning, radio frequency prepare and supply 5G DNS IoT Equipment Interconnection Network Slicing Fragment of Internet Internet Engineering Task Force Network 2030