What is PDCP in LTE?

Packet Data Convergence Protocol. PDCP fundamentally provides a compression service to higher layer data, which may be control plane or user plane (IP) traffic.

What is PDCP status report?

The PDCP status report is used to inform the transmitter PDCP entity about the PDCP PDUs which were received or not received by the receiver PDCP entity, such that non-received PDCP SDUs can be retransmitted and received PDCP SDUs need not be retransmitted.

What is PDCP sequence number?

The value of the PDCP sequence number ranges from 0 to 65535. The PDCP SN window size indicates the maximum number of PDCP SDUS, not confirmed to have been successfully transmitted to the peer entity by lower layer, that can be numbered at any given time. The PDCP SN window size is configured by upper layers.

What is the maximum size of PDCP SDU and PDCP PDU?

9000 bytes
Size of PDCP SDU and PDCP control PDU are maximum 9000 bytes. The length of PDCP SN is either 12 bits or 18 bits. It is configured by upper layers.

What is PDCP in LTE and what does it mean?

What is pdcp in lte: – PDCP means Packet Data Convergence Protocol means it convert data at protocol level let’s check its function at user plane and control plane in details. The main services provided by the Packet Data Convergence Protocol (PDCP) are:

What are the results of discard timer based PDCP?

TCP segment delay in downlink direction for different per bearer buffer capacity values. The figure shows the CDF curves of TCP segment delay for FTP downlink TABLE III shows several simulation result statistics including total PDCP packet drops due to buffer overflow.

When to discard PDCP SDU in RLC?

Once the discard timer expires the PDCP transmitter discard the PDCP SDU and indicate the RLC to discard the corresponding PDCP PDU if the PDU has already been delivered to RLC. Then the RLC layer will discard the PDCP PDU if no segment is transmitted to the receiver.