哪本协议描述了每一种DCI format 的每一个bit的意义啊。 就像下面的描述这样： information type bit number description Resource allocation header 1 Indicates whether resource allocation type 0 or 1 is used Resource block assignment N Indicates resource blocks to be assigned to the UE Modulation and coding scheme 5 Indicates modulation scheme and, together with the number of allocated physical resource blocks, the transport block size HARQ process number 4 (FDD), 3 (TDD) Identifies the HARQ process the packet is associated with New data indicator 1 Indicates whether the packet is a new transmission or a retransmission Redundancy version 2 Identifies the redundancy version used for coding the packet TPC command for PUCCH 2 Transmit power control (TPC) command for adapting the transmit power on the PUCCH Downlink assignment index (TDD only) 2 Number of downlink subframes for uplink ACK/NACK bundiling