| 摘要 |
The present invention provides a method and a device for transmitting and receiving control signaling. The method includes: determining an original size of a DCI format which is in a first group and is the format of DCI to be transmitted; determining, according to a current transmission configuration, a second group of DCI formats that can be used under the current transmission configuration; comparing a size of the DCI format in the second group with the original size of the DCI format in the first group, and if the second group includes a DCI format that has a same size as a DCI format in the first group, appending a bit to the DCI format which is in the first group of DCI formats and has the same size as the DCI format in the second group, so that size of the DCI format in the first group after the bit appending is different from that of the DCI format in the second group; and transmitting, according to the DCI format with the appended bit in the first group, the DCI to be transmitted. According to embodiments of the present invention, DCI formats under a current configuration may be easily distinguished with a relative small overhead. |
