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3GPP LTE PDCP Layer Presentation

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LTE PDPCP Layer Presentation

The PDCP layer in LTE performs the following functions:

  • Transfer of upper layer PDUs;
  • Error correction through ARQ (only for AM data transfer)
  • Concatenation, segmentation and reassembly of RLC SDUs (UM and AM)
  • Re-segmentation of RLC data PDUs (AM)
  • Reordering of RLC data PDUs (UM and AM);
  • Duplicate detection (UM and AM);
  • RLC SDU discard (UM and AM)
  • RLC re-establishment
  • Protocol error detection and recovery

3GPP LTE PDCP presentation

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