| 摘要 |
Disclosed are a method and a device for transmitting and receiving downlink data feedback information. The method and device are used for, when data transmission in a short time slot is utilized at the network side, making a user equipment (UE) give feedback of received data as soon as possible, thereby shortening a round trip time (RTT), reducing time delay at the user side, and improving the system performance. An embodiment of the present invention provides a method for transmitting feedback information of downlink data, said method comprising: a user equipment (UE) receives downlink data transmitted from the network using a time slot as a unit; the UE transmits to the network side feedback information of the downlink data using a sub-frame or the time slot as a unit, said time slot being a time unit having a length of less than 1 millisecond. |
