A.MAC層, B.RLC層, C.MM層, D.PDCP層.
A.最佳的網(wǎng)絡(luò)性能, B.最匹配的天線間距, C.對現(xiàn)網(wǎng)影響最小, D.降低成本.
A.無縫業(yè)務(wù)提供, B.分組數(shù)據(jù)業(yè)務(wù), C.基于全I(xiàn)P核心網(wǎng), D.網(wǎng)絡(luò)融合與重用.