| 摘要 |
<p>The invention is directed to a method for transmitting control information such as acknowledgement messages in a cellular telecommunications network. According to the invention, the acknowledgement messages (ACK-PDU) are transmitted more protected by repeating the ACK-PDUs several times and using soft combining. The soft combining mechanism is preferably the same as for actual data. Preferably, the ACK-PDUs are not requested to be re-transmitted but are immediately repeated several times. The inventive method is most advantageous, if the soft combining of transmitted data units (PDUs) is performed on the basis of physical layer information such as physical layer frame numbers, since acknowledgment messages do not normally have a packet number as the data units, which the ACK messages refer to. The inventive method can be used for transmission of other control information as well, and is not limited to transmission of only ACK messages.</p> |
