eMTC协议介绍.pdfVIP

eMTC Introduction BL/CE: Bandwidth-reduced Low-complexity and Coverage Enhanced, R13 中对CAT.M(eMTC) UE 的代称； 1 物联网几个标准的对比  3GPP物联网标准包括：  Cat. 1 ：R8 就已经发布  Cat. 0(MTC) ：R12 发布  Cat. M(eMTC) ：R13 发布  NB-IOT ：R13 与eMTC 同版本发布  Cost reduction CAT.0 和CAT.M 的数据有效带宽是相同的(都是6 个RB 带宽)，在36.306 协议中定义的 一个子帧内上下行最大传输数据量也是相同的。但是CAT.0 是按照小区带宽来接收的，因 此收发过程中不需要接收发送频点的retuning。CAT.0 是一个过渡协议，是在CAT.M 没有 release 的时候的过渡标准。 Table 4.1A-1: Downlink physical layer parametervalues set by the field ue-CategoryDL UE DL Maximum number Maximum Total number of Maximum number Category of DL-SCH transport number of bits of soft channel of supported block bits received a DL-SCH bits layers for spatial within a TTI (Note 1) transport block multiplexing in received within a DL TTI DL Category M1 1000 1000 25344 1 DL Category 0 1000 1000 25344 1 (Note 2) Category 1 10296 10296 250368 1 Table 4.1A-2: Uplink physical layer parametervalues set by the field ue-CategoryUL UE UL Category Maximum number of Maximum number Support for UL-SCH transport of bits of an UL- 64QAM in UL block bits transmitted SCH transport within a TTI block transmitted within a TTI UL Category M1 1000 1000 No UL Category 0 1000 1000 No Category 1 5160 5160 No