Patent ID: 9143958
Filing Date: 2015-09-22
Classification: H04L,H04W

Abstract:
1. A device comprising: a memory to store a plurality of instructions; and a processing unit configured to execute instructions in the memory to: determine whether power is limited in the device, determine whether the device is using a minimum usable enhanced dedicated channel, E-DCH, transport format combination, ETFC, receive consecutive negative acknowledgments, NACKs, determine whether the number of consecutive NACKs is greater than a predefined number, measure a downlink channel quality, determine whether the measured downlink channel quality is less than a predefined threshold, trigger autonomous retransmission, where a number of retransmissions are sent consecutively without waiting for receipt of a negative acknowledgement before starting the next retransmission, when power is limited in the device, when the device is using the minimum usable ETFC, and when one of: the number of consecutive NACKs is greater than the predefined number, or the measured downlink channel quality is less than the predefined threshold, receive a number of retransmissions for the autonomous retransmission calculated based on a signal-to-interference ratio required for a transport format, SIR