Patent ID: 7457314

Claim:
A method for improving a speech transmission quality via a radio interface in a communications network wherein the speech transmission is in the form of voice data packets, the method comprising: compressing a voice data packet; transmitting the compressed voice data packet via the radio interface by a sending device; receiving the transmitted voice data packet by a receiving device; storing the transmitted voice data packet by the receiving device; automatically re-transmitting the compressed voice data packet after a time delay from the transmission of the voice data packet; receiving the re-transmitted voice data packet by the receiving device; determining a measure of the quality of the voice data packets by the receiving device; and selecting the packet having a better speech transmission quality for use by the receiving device; wherein a compression ratio for the voice data packet is selected such that the voice data packet and the re-transmitted voice data packet occupy a bandwidth less than or equal to a bandwidth occupied by the voice data packet prior to the step of compressing, wherein if a compression ratio that permits the voice data packet and the re-transmitted voice data packet to occupy a bandwidth less than or equal to the bandwidth occupied by the voice data packet prior to the step of compressing is not available, then the step of transmitting the voice data packet further comprises transmitting the voice data packet on a first transmission channel or a first logical link of the radio interface and the step of re-transmitting the voice data packet further comprise re-transmitting the voice data packet on a second transmission channel or a second logical link of the radio interface.