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SYSTEM AND METHOD FOR AVOIDING STALL USING TIMER FOR HIGH-SPEED DOWNLINK PACKET ACCESS SYSTEM

  • US 20090175222A1
  • Filed: 03/12/2009
  • Published: 07/09/2009
  • Est. Priority Date: 01/05/2002
  • Status: Active Grant
First Claim
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1. A method of controlling a stall avoidance in a reordering buffer of a receiving communication device using a timer, comprising:

  • if no timer is active, starting the timer when a MAC-hs protocol data unit (PDU) with a transmission sequence number (TSN) higher than next expected TSN is correctly received;

    stopping the timer if the MAC-hs PDU with the TSN for which the timer was started can be delivered to a higher entity before the timer expires; and

    when the timer is stopped, and there exists some received MAC-hs PDUs that cannot be delivered to the higher entity, starting the timer for a highest TSN among those of the MAC-hs PDUs that cannot be delivered to the higher layer.

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