What is PDCP in LTE?
From Wikipedia, the free encyclopedia. Packet Data Convergence Protocol (PDCP) is specified by 3GPP in TS 25.323 for UMTS, TS 36.323 for LTE and TS 38.323 for 5G. PDCP is located in the Radio Protocol Stack in the UMTS/LTE/5G air interface on top of the RLC layer.
What are the various PDCP SN sizes possible?
According to 36.323 4.3. 1 Services provided to upper layers, the maximum size of a PDCP SDU is defined as follows….Maximu PDCP Packet Size.
| Type | Standard | Max Size (in Byte) |
|---|---|---|
| PDCP SDU | LTE | 8188 |
| LTE-NB | 1600 | |
| PDCP Control PDCU | LTE | 8188 |
| LTE-NB | 1600 |
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 aggregation?
The basic principle of split bearer in DC is that one PDCP with two RLC entities. One RLC entity for each of LTE & NR and the RLC SDUs from both of these RLC entities will aggregate at PDCP layer. This is called PDCP aggregation.
Is PDCP a Layer 2?
The layer 2 of NR is split into the following sub layers: Service Data Adaptation Protocol (SDAP) Packet Data Convergence Protocol (PDCP)
What is PDCP duplication?
Indicates whether or not uplink duplication status at the time of receiving this IE is configured and activated as specified in TS 38.323 [5]. The presence of this field indicates that duplication is configured. PDCP duplication is not configured for CA packet duplication of LTE RLC bearer.
What does PDCP stand for?
PDCP
| Acronym | Definition |
|---|---|
| PDCP | Packet Data Convergence Protocol (3GPP) |
| PDCP | Parallel and Distributed Computing Practices |
| PDCP | Process Decision Program Chart |
| PDCP | Project Design and Consultation Process |
What is PDCP discard timer?
A PDCP layer sets a timer and discards a PDCP SDU upon expiration of the timer. The timer may be set upon receiving the PDCP SDU from an upper layer or upon submitting the PDCP SDU to a lower layer for transmission. The timer and a radio link control (RLC) discard timer may be coordinated.
What is 5G architecture?
5G Architecture. 5G is effectively a dynamic, coherent and flexible framework of multiple advanced technologies supporting a variety of applications. 5G utilizes a more intelligent architecture, with Radio Access Networks (RANs) no longer constrained by base station proximity or complex infrastructure.
What is N2 handover in 5G?
1 Introduction. Handover procedures in 5GS are used to hand over a UE from a source NG-RAN node to a target NG-RAN node. The latter case is referred to as “N2-based” since the N2 interface between NG-RAN and AMF is used to manage the handover.
What is RLC and PDCP?
The RLC layer receives packets from the PDCP layer. These packets are called PDCP PDUs from a PDCP point of view and represent RLC SDUs from an RLC point of view. The RLC layer creates packets which are provided to the layer below, i.e. the MAC layer.
