Patent ID: 7561509
Filing Date: 2009-07-14
Classification: H04L,H04W

Abstract:
1. A method comprising: storing information at a base transceiver station, the information comprising a plurality of modulation and coding methods which are selectable to transmit second data packets over a forward shared channel to a mobile station following transmission of first data packets over the forward shared channel to the mobile station, wherein the plurality of modulation and coding methods comprise a plurality of groups of selectable modulation and coding methods, and wherein the information comprises correlating information that correlates selectable modulation and coding methods of a first group with frame error rate and correlates a second group of selectable modulation and coding methods with throughput determined by the mobile station; receiving feedback from the mobile station at the base transceiver station based upon the transmission of the first data packets of a quality indication of transmission of the first data packets over the forward channel to the mobile station; and selecting a modulation and coding method from the plurality of modulation and coding methods to be used to transmit the second data packets on the forward channel dependent upon the received quality indication of the feedback of the first data packets and based upon the stored correlating information; and wherein the quality indication is processed at the base transceiver station to enable selection, from the plurality of groups of selectable modulation and coding methods, of a modulation and coding method to be used to transmit the second data packets from one of the groups with the modulation and coding method selected from each group optimizing a different characteristic of the transmission of the second data packets.