Patent ID: 8179783

Claim:
A method of modulation and coding scheme adjustment for a Long Term Evolution (LTE) shared Data Channel between a user equipment and a base station, wherein the shared Data Channel is a physical downlink shared channel (PDSCH), the method comprising the steps of: determining an actual number of orthogonal frequency division multiplexing (OFDM) symbols, N OS utilized for the shared Data Channel; determining a modulation and coding scheme field (I MCS ) of a downlink control information of the PDSCH by: increasing a modulation order for transmission of data on the shared Data Channel when the actual number of OFDM symbols N OS is less than 11; decreasing the modulation order when N OS is more than 11; determining if 0≦I MCS +11−N OS ≦28; and upon determining that 0≦I MCS +11−N OS ≦28, modifying the modulation order by utilizing a factor of (I MCS +11−N OS ) in a standardized modulation scheme.