Data delivery in conjunction with a hybrid automatic retransmission mechanism in CDMA communication systems
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United States of America Patent
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Sep 9, 2014
Grant Date -
Sep 4, 2008
app pub date -
May 8, 2008
filing date -
May 13, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Techniques for delivering data recovered by a HARQ entity in proper order to higher layers in a CDMA system. In a method, packets are received from the HARQ entity by the re-ordering entity and missing packets among the received packets are detected. Packets may be transmitted in a sequential order based on transmission sequence numbers (TSNs) assigned to the packets, and missing packets may be detected based on the TSNs of the received packets. Delivery of received packets later than the missing packets are stalled because higher layers expect data in-order. A determination is thereafter made whether each missing packet is (1) subsequently received from the HARQ entity or (2) lost, by successively eliminating HARQ channels that may be used to send the missing packet. Received packets previously stalled by each missing packet are delivered after the missing packet is determined to be lost or received.
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