Patent ID: 8780733
Filing Date: 2014-07-15
Classification: H04L

Abstract:
1. An apparatus for a transmitting end in a wireless communication system supporting Hybrid Automatic Repeat reQuest (HARQ), the apparatus comprising: a communication unit for transmitting a data packet to a mobile station (MS) and receiving feedback for the transmitted data packet; a parameter setting unit for determining a service class in a service flow of the data packet, and then setting a target Packet Error Rate (PER) according to the service class, wherein the target PER indicates a permissible rate of erroneous data packets; a PER calculation unit for calculating a current PER based on a proportion of a number of erroneous data packets to a total number of data packets transmitted to the MS during a pre-determined number of data packets or a pre-determined time period; and a re-transmission decision unit for detecting that the transmitted data packet is erroneous based on the feedback and determining a re-transmission of the data packet when the current PER exceeds the target PER.