摘要 |
A communication method performed in a mobile communication device of a telecommunication system includes receiving Service Data Units, SDUs, for transmission to a source node of the telecommunication system, storing a copy of the SDUs in an SDU management buffer, passing the SDUs to a concatenation and segmentation unit to generate Protocol Data Units, PDUs, storing the PDUs in a transmit buffer for transmission to the source node, sending a feedback message to the SDU management buffer identifying an SDU that can be removed from the SDU management buffer, receiving a handover command from the source node after receiving the status report, and after completing handover to a target node, using the received status report to control which SDUs are passed to the concatenation and segmentation unit to form PDUs for transmission to the target node.
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