INFORMATION TRANSMISSION METHOD AND DEVICE
FIG2 is a schematic diagram of a to-be-coded information bit sequence formed by a terminal device
In this application, based on the resolution of transmission, on a PUCCH resource, of aperiodic CSI triggered by DCI, further, when the aperiodic CSI is transmitted, the aperiodic CSI is triggered by the DCI, and the PUCCH resource is also allocated by the DCI that triggers the CSI. For example, DCIO triggers the aperiodic CSI and downlink data packet scheduling, and after DCI0, DCI1 triggers downlink data scheduling for the second time, and DCIO and DCI1 indicate that CSI, A/N0, and A/N1 are reported by using a same PUCCH resource at a moment n+2. According to the prior art, the terminal device may determine, based on the used PUCCH resource and according to a predefined rule, a length K of an information bit sequence of the UCI when the UCI is transmitted by using the PUCCH resource, where K is a positive integer. Then, the terminal device forms an information bit sequence in a mapping manner that an information bit sequence of an A/N is in front of an information bit sequence of CSI, and determines, based on a comparison between a length X of the information bit sequence and K, whether to pad K-X dummy bits behind the sequence, so that a length of a to-be-coded information bit sequence reaches K. Then, the terminal device performs operations such as coding and modulation on the to-be-coded information bit sequence with the length of K, and then adds the information bit sequence to the PUCCH resource for reporting to the network device. In this manner, FIG2 is a schematic diagram of the to-be-coded information bit sequence formed by the terminal device. In FIG2, it is assumed that the length K is exactly equal to X. Certainly, K may be alternatively greater than X, provided that the terminal device pads dummy bits in predefined positions. After performing operations such as demodulation and channel decoding, the network device obtains the information bit sequence with the length of K, and sequentially obtains A/N0, A/N1, and CSI based on a sequence in FIG2.
schematic diagram
3
not described herein again.
2
No.
['2. The method according to claim 1, wherein the PUCCH resources indicated by the plurality of pieces of DCI are a same PUCCH resource, and the sending, by the terminal device, target UCI on a target PUCCH resource comprises: sending, by the terminal device, the target UCI and indication information on the target PUCCH resource, wherein the indication information is used to indicate a type of the target UCI, the type of the target UCI comprises a first type and a second type, UCI of the first type comprises channel state information CSI, and UCI of the second type does not comprise CSI, or, a quantity of bits of UCI of the first type is within a first preset range, and a quantity of bits of UCI of the second type is within a second preset range.']