Patent ID: 7768950

Claim:
A non-transitory computer readable storage medium having recorded thereon a transmission packet for transmitting uncompressed audio or video (AV) data, the transmission packet comprising: a payload comprising multiple Transmission Data Units (TDUs) error-correction coded at a predetermined coding rate, the payload being classified according to importance of bits constituting the uncompressed AV data; a medium access control (MAC) header comprising information for medium access control; and a physical layer (PHY) header comprising information about the predetermined coding rate, wherein a mode index is recorded in the PHY header, and denotes two groups comprising: a first group including four upper bit levels; and a second group including four lower bit levels, wherein the two groups are included in each of the multiple TDUs, and a coding rate and a modulation method are applied to each group, and when the mode index has a value of 0, the first group and the second group are coded at a coding rate of 1/3 with a quadrature phase shift keying (QPSK) modulation method, and when the mode index has a value of 1, the first group and the second group are coded at a coding rate of 2/3 with a QPSK modulation method, and when the mode index has a value of 2, the first group and the second group are coded at a coding rate of 2/3 with a 16-quadrature amplitude modulation (16-QAM) modulation method, and when the mode index has a value of 3, the first group and the second group are coded at a coding rate of 4/7 and 4/5, respectively, with a QPSK modulation method, and when the mode index has a value of 4, the first group and the second group are coded at a coding rate of 4/7 and 4/5, respectively, with a 16 QAM modulation method, and when the mode index has a value of 5, the first group is coded at a coding rate of 1/3 with a QPSK modulation method.