Method and system for computing and sending resource requests and avoiding deadlock situations in mobile communication system

  • US 9,210,642 B2
  • Filed: 01/29/2010
  • Issued: 12/08/2015
  • Est. Priority Date: 01/29/2009
  • Status: Active Grant
First Claim
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1. A method for transmitting a buffer status report (BSR) by a user equipment (UE) performing a handover procedure from a first network element to a second network element in a mobile communication system, the method comprising:

  • identifying a data packet available for transmitting and packet data convergence protocol (PDCP) control information;

    generating a BSR based on the data packet and the PDCP control information, the PDCP control information including robust header compression (ROHC) feedback information associated with the data packet available for transmitting and a PDCP status report indicating whether reception of a PDCP protocol data unit (PDU) is successful;

    transmitting the generated BSR to the second network element,wherein the PDCP status report is transmitted to the second network element based on the BSR as a first PDCP PDU after the UE performs the handover procedure.

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