Method of performing polling procedure in a wireless communication system

摘要

A method of generating a data block for performing a polling procedure in a wireless communication system, a method of transmitting data and a method of performing a polling procedure are disclosed. A protocol layer performs the polling procedure for requesting a receiving side to transmit status report if there are no data to be transmitted to the receiving side in both a transmission buffer and a retransmission buffer. When determining whether there are no data to be transmitted to the receiving side in the retransmission buffer, it is preferable that a data block for which retransmission request information is not received from the receiving side is excluded.

主权项

1. A method for performing a polling procedure in a protocol layer of a transmitting side in a wireless communication system, the method comprising:
generating a first data block which contains a header and a data field, the header comprising a polling field; setting a polling field of the first 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 transmitting side, and wherein the polling field is set further in consideration of a counter value; increasing the counter value per one byte of data included in the data field of the first data block; wherein the polling field of the first data block is set with a value for triggering a polling either if both the transmission buffer and the retransmission buffer of the transmitting side are empty of data or if the counter value exceeds a predetermined threshold, and wherein a second data block present in the retransmission buffer, and awaiting acknowledgement from a receiving side, is excluded in determining whether the retransmission buffer is empty of data for transmitting to the receiving side; and transmitting the first data block to the receiving side.