Data transmission method and apparatus

Abstract

The embodiment of the invention provides a data transmission method and apparatus. The method comprises the following steps: generating a configuration message, wherein the configuration message is used for configuring a receiving function of downlink binding data to user equipment UE, and the downlink binding data are downlink data subjected to at least two repeated transmissions; and sending theconfiguration message to the UE and sending the downlink binding data to the UE. According to the data transmission method and apparatus provided by the embodiment of the invention, the downlink dataare sent the user equipment in a downlink binding manner, thereby shortening the time delay of downlink data transmission; if the downlink data are PDCCH control signaling, the timeliness of the operation indicated by the PDCCH control signaling can also be improved; and by further configuring the receiving function of downlink binding data to the UE, the UE is prevented from receiving the downlink data in the manner of receiving the downlink binding data in all scenes.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a data transmission method and device. Background technique [0002] Currently, a Long Term Evolution (LTE for short) system is widely used in the communication field. In the LTE system, the downlink data sent by the base station to the user equipment (User Equipment, hereinafter referred to as UE) may include PDSCH data transmitted on a physical downlink shared channel (Physical Downlink Shared Channel, hereinafter referred to as PDSCH), and physical downlink control channel (Physical Downlink Control Channel, hereinafter referred to as PDCCH) control signaling transmitted on the PDCCH. The PDCCH control signaling may include a scheduling command, a power control command, a measurement report command, and the like. [0003] The foregoing downlink data sent by the base station may not be correctly received by the UE. If the base station does not receive c...

AI Technical Summary

Problems solved by technology

This method of repeatedly retransmitting downlink data often leads to a long delay in downlink data transmission

If the repeatedly retransmitted downlink data is a scheduling command for scheduling uplink / downlink data, it will also cause the delay of the scheduled uplink / downlink data transmission to be too long; if the repeatedly retransmitted downlink data is a power control command or measurement report command, it will also cause problems such as untimely UE power adjustment and untimely measurement report

Images