Method and apparatus for reordering uplink data packets using transmission sequence numbers and time stamps in a mobile communication system
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United States of America Patent
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Issued Date -
Dec 22, 2005
app pub date -
Jun 15, 2005
filing date -
Jun 16, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and apparatus for reordering data sent from a user equipment (UE). The UE assigns transmission sequence numbers (TSNs) to medium access control (MAC)-e protocol data units (PDUs) through an enhanced uplink dedicated channel (E-DCH). A Node B assigns, to received PDUs, time stamps (TSs) indicating time points when the PDUs are received. Using the TSNs and the TSs, a radio network controller (RNC) solves a problem of PDU disorder due to hybrid automatic retransmission request (HARQ) operations and transfer delay between the Node B and the RNC, and reorders the PDUs.
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