LTE建网目标对频谱效率的要求是
A.峰值DL5bit/Hz和UL2.5bit/Hz
B.峰值DL4bit/Hz和UL3bit/Hz
C.峰值DL3bit/Hz和UL2.5bit/Hz
D.峰值DL2bit/Hz和UL4bit/Hz
正确答案是A