Whendesigningthecoverageareaforhighcallcapacity,whattwoactionsshouldbedonewithdata ratesandchannels?（）

A.AvoidchannelswithhighAPco-channelinterference.
B.UsechannelswithhighAPco-channelinterferencetoavoidchannelroams.
C.Setthe2.4-GHzdatarateof5.5Mb/storequired.
D.Use5-GHzchannelswhenpossible.
E.Use2.4-GHzchannelswhenpossible.

【参考答案】

A, D