A.BPSK, B.QBSK, C.16QAM, D.64QAM.
A.硬切換, B.后向切換, C.終端輔助切換, D.軟切換.
A.時(shí)延長(zhǎng)度為0.5ms, B.對(duì)延遲要求低, C.FDD與TDD參數(shù)統(tǒng)一, D.對(duì)延遲要求高.