A.降低鄰區(qū)干擾, B.提升小區(qū)邊緣數(shù)據(jù)吞吐量, C.改善小區(qū)邊緣用戶體驗, D.提高小區(qū)周邊的覆蓋面積.
A.1ms, B.2ms, C.3ms, D.0.5ms.
A.OFDM, B.16QAM, C.64QAM, D.QPSK.