METHOD, DEVICE AND SYSTEM FOR ACQUIRING FEEDBACK DELAY

摘要

Embodiments of the present invention disclose a feedback delay obtaining method, apparatus, and system, which solve a problem that an additional delay is introduced due to compression/decompression and network transmission and causes timing sequence chaos for HARQ and unnecessary retransmission in a transmission process of uplink service data of a user end. The method includes: a processing node obtains a target time in a process from that a remote radio end receives uplink data to that the remote radio end sends feedback information of the uplink data to a user end corresponding to the processing node, and then the processing node obtains a feedback delay by adding the target time and an air interface transmission propagation delay. The present invention is applicable to the field of communication systems.