| 摘要 |
<p>In a wireless data network, such as a General Packet Radio Service (GPRS) network, a transmitter uses one of k coding/modulation schemes for transmitting data. The transmitter initially selects a coding/modulation scheme, C , as a function of carrier-to-interference ratio ( C / I ) measurements. The transmitter then calculates the number of blocks, B , required to transmit a number of data packets, D , using the coding/modulation scheme C . In addition, the transmitter calculates the number of blocks required to transmit the number of data packets, D , for each coding/modulation scheme that is stronger than the selected coding/modulation scheme C . The transmitter finally selects that coding/modulation scheme that results in transmitting the number of data packets D in B blocks using the strongest coding/modulation scheme. As a result, each block is transmitted using the strongest coding/modulation scheme available.</p> |
