Patent ID: 8411583
Filing Date: 2013-04-02
Classification: H04L,H04W

Abstract:
1. A method for performing a polling procedure in a protocol layer performing a data retransmission function in a wireless communication system, the method comprising: in a radio link control (RLC) layer of a sender, setting a polling field of a data block to be transmitted to a receiver, wherein a value of the polling field is set according to a status of a transmission buffer and a retransmission buffer of the sender, and wherein the polling field is set further in consideration of a counter value; wherein the polling field is set to a value for triggering the receiver to transmit a status report to the sender if both the transmission buffer and the retransmission buffer of the sender are empty of data; and increasing the counter value per one byte of a data field of the data block, wherein the polling field is set to the value for triggering a polling if the counter value exceeds a predetermined threshold; and transmitting the data block to the receiver.