Patent ID: 8588100

Claim:
A method for data retransmission in an enhanced multimedia broadcast and multicast service, the method comprising: dividing all user terminals into different user groups according to service priorities of the user terminals, and setting retransmission parameters for each of the different user groups; and in a particular time period, if the number of times of data retransmission requests received from the user terminals in one of the different user groups by a base station is not less than a preset value of the set retransmission parameter parameters, performing data retransmission for the user terminals in the user group and retiming; otherwise, when the particular time period expires, performing the data retransmission for the user terminals in the user group and retiming, wherein the retransmission parameters comprise: a data retransmission triggering period, a burst-mode data retransmission triggering threshold, and a data retransmission policy, wherein the particular time period is the data retransmission triggering period; and the preset value is the burst-mode data retransmission triggering threshold.