| 摘要 |
PROBLEM TO BE SOLVED: To improve re-transmission of a data frame in a distributed transmission apparatus that is a transmission apparatus comprised of individual CCU and PCU units. SOLUTION: The present invention relates to a distributed transmission apparatus and method thereof in a communication system wherein re-transmission of a data frame can be requested by a receiver MS. According to the present invention, a transmission unit CCU in the distributed transmission apparatus transmits a data frame to the receiver MS and the transmitted data frame is stored. Further, the apparatus also comprises a control unit PCU for transmitting the data frame to the transmission unit CCU for transmission to the receiver MS and transmitting control data to the transmission unit CCU for controlling the re-transmission of the data frame, and this control unit PCU controls the transmission unit CCU to re-transmit, to the receiver MS, the data frame stored in the transmission unit CCU. Thus, necessity of communication between the PCU and the CCU is reduced, namely, in the case of re-transmission, capacity of a secondary link is not wasted. COPYRIGHT: (C)2006,JPO&NCIPI
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