Patent ID: 8769366
Filing Date: 2014-07-01
Classification: H04L

Abstract:
1. A method in a mobile station for handling an acknowledgement (ACK)/negative acknowledgement (NACK) procedure, comprising: transmitting data blocks over a radio channel to a base station; receiving from the base station an acknowledgment status of the transmitted data blocks provided with a piggy-backed ACK/NACK (PAN) field carrying an array of first and second PAN values, wherein the status of each data block is represented with a PAN value, and wherein correctly received data blocks do not modify a current PAN value in the array and data blocks not correctly received by the base station are given the second PAN value in the array; setting the data blocks represented by the second PAN value in the array as NACKed, wherein setting of which data blocks to re-transmit is independent of a broadcasted parameter representing round trip time; and re-transmitting to the base station the data blocks set as NACKed.