| 摘要 |
<p>The invention relates to data transmission in a telecommunication system. An information unit is asynchronously transmitted over a transmission link, such as a radio interface, in basic timing units, called radio frames in the case of a radio interface, of the transmission link. Information units (I1...I8) are placed in two or more successive radio frames such that each radio frame comprises at least one whole information unit and part of an information unit (I3) split (I31...I32) in two successive radio frames. This way the radio frames can be considered to contain asynchronous information units. One or more bits in a radio frame is reserved for phase indication (P1, P2), on the basis of which a receiver synchronizes to the asynchronous information units within the radio frames. Phase indication is modulo N, which defines a sequence of N successive radio frames and indicates for each radio frame which of the N possible radio frames in the frame sequence said frame is. The receiving unit indicates phasing between the radio frames and the asynchronous information units in the radio frames by synchronizing to said phase indication.</p> |
