LTE RLC Sub Layer Functions

LTE RLC Sub Layer Functions (Work of the RLC protocol in LTE): Main task of LTE RLC sub layer is transfer PDUs in three modes of LTE upper layer.

LTE RLC Sub Layer Functions (Work of the RLC protocol in LTE): Main task of LTE RLC sub layer is transfer PDUs in three modes of LTE upper layer.

RLC Sub Layer Functions

  1. Protocol Data Units (PDUs) Transfer in upper layer any of three modes: Acknowledged Mode (AM), Unacknowledged Mode (UM) and Transparent Mode (TM)
  1. For AM data transfer correction of Error through ARQ (automatic repeat request )
  1. In Unacknowledged Mode – UM and Acknowledged Mode – AM : RLC SDUs Concatenation, segmentation and reassembly.
  1. RLC data PDUs AM – Acknowledged Mode for Re-segmentation
  1. Reordering of RLC data PDUs in Unacknowledged Mode and Acknowledged Mode
  1. Duplicate detection in Unacknowledged Mode and Acknowledged Mode.
  1. RLC SDU discards in both Unacknowledged Mode and Acknowledged Mode.
  1. RLC re-establishment in LTE
  1. Protocol error detection and recovery in LTE

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