Method for transmitting status report of PDCP layer in mobile telecommunications system and receiver of mobile telecommunications

  • US 10,306,489 B2
  • Filed: 02/28/2018
  • Issued: 05/28/2019
  • Est. Priority Date: 09/11/2007
  • Status: Active Grant
First Claim
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1. Apparatus, comprising:

  • at least one processor;

    at least one memory including computer program code, the memory and the computer program code configured to, working with the at least one processor, cause the apparatus to perform at least the following;

    generate a packet data convergence protocol (PDCP) control packet data unit (PDU) to communicate a status report over a PDCP mobile communications protocol layer for one or more PDCP service data units (SDUs) received from a transmitting node,wherein the PDCP control PDU includes a data/control (D/C) bit field to indicate the PDCP control PDU is a control PDU, a control PDU type field to indicate a type of corresponding control information, a sequence number field to indicate a first missing PDCP SDU, and a bitmap field for a variable length bitmap,wherein a specific bit in the variable length bitmap indicates whether a corresponding one of the one or more PDCP SDUs has been successfully been received, anda transmitter to transmit the PDCP control PDU to the transmitting node.

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