Method and apparatus for processing data for transmission in multi-channel communication system using selective channel transmission

一种选择用于数据传输的传输信道以及处理并发射选定的传输信道上的数据的技术。可用的传输信道被分为一个或多个组，且每个组内包括任何数量的信道。使用选择性信道传输，只有每个组中的"好"信道被选用(例如根据信道接收到的SNRs和SNR阀值)，"坏"信道不被使用，且组的总可用发射功率只在组内的好信道上分配(例如均匀地)。每个组还与相应的编码和调制方案相关，且每个组的数据可能根据为该组选择的方案而经编码和调制。通过只使用每个组内的好信道并将每个选定的信道的数据处理与信道可获得的容量相匹配而获得改善的性能。 Techniques to select transmission channels for use for data transmission and to process and transmit data over the selected transmission channels. Transmission channels available for use are segregated into one or more groups, with each group including any number of channels. With selective channel transmission, only "good" channels in each group are selected (e.g., based on the channels' received SNRs and an SNR threshold), "bad" channels are not used, and the total available transmit power for the group is (e.g., uniformly) distributed across only the good channels. Each group may also be associated with a respective coding and modulation scheme, and data for each group may be coded and modulated based on the scheme selected for the group. Improved performance is achieved by using only good channels in each group and matching the data processing for the selected channels to the capacity achievable by the channels.