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System and method for avoiding stall using timer for high-speed downlink packet access system

  • US 8,355,321 B2
  • Filed: 09/10/2009
  • Issued: 01/15/2013
  • Est. Priority Date: 01/05/2002
  • Status: Expired due to Term
First Claim
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1. A method of operating a timer for processing data blocks in a receiver of a mobile communications system, the method comprising:

  • if a timer is not active, starting the timer for a data block having a sequence number higher than a sequence number of another data block that was first expected to be received; and

    when the timer expires, re-starting the timer for a data block based on a highest sequence number among data blocks that cannot be delivered to a higher layer, wherein the highest sequence number corresponds to a sequence number of a last data block of a subset of data blocks among the data blocks that cannot be delivered to the higher layer, and wherein no additional timers are started when the timer is active at a given time.

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