LTE上行64QAM

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LTE上行64QAM

LTE 36.331

SIB2

enable64QAM

See TS 36.213 [23, 8.6.1].

lf enable64QAM(without sufix) is set to TRUE, it indicates that 64QAM is allowed for UEcategories  5 and 8  indicated in ue-Category while FALSE indicates that 64QAM is not allowed.

lf enable64QAM-v1270          is set to TRUE, it indicates that 64QAM is allowed for Ul categories 5 and 13 indicated in ue-CategoryUL.

E-UTRAN configures enable64QAM-v1270 only when enable64QAM(without suffx) is set to TRUE.

上行MCS已经到了24，但是调制阶数只能到16QAM，需要通过SIB2将UE的64QAM能力打开；

enable64QAM        TRUE --> Cat 5, Cat 8
enable64QAM-v1270  TRUE --> Cat 5, Cat 13

enable64QAM-v1270要配置为TRUE，需要将enable64QAM配置为TRUE