April 4, 2019


LTE;. Evolved Universal Terrestrial Radio Access (E-UTRA);. Packet Data Convergence Protocol (PDCP) specification. (3GPP TS version Release. PDCP is an abbreviation for Packet Data Convergence Protocol. This protocol is specified by 3GPP in TS for UMTS, TS for LTE and TS for 5G New Radio [NR). The PDCP is located in the Radio Protocol Stack in the UMTS/LTE/5G Air 3GPP TS Packet Data Convergence Protocol (PDCP ) specification. Packet Data Convergence Protocol (PDCP) specification. (Release 8). The present document has been developed within the 3rd Generation Partnership Project.

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The communication network is widely deployed to provide a variety of communication services such as voice and packet data.

The invention claimed is: A physical layer PHYwhich is the first layer L1provides an spce transmission service to an upper layer using a physical channel.

The method of claim 1further comprising if sequence numbers are assigned to the predetermined number of or more PDCP SDUs, returning to the determining step. As illustrated in FIG.

USB2 – PDCP packet transmission method – Google Patents

If not, how does PDCP layer send the bit map indications of the out-of-order packets. Such transmitting side and receiving side share a PDCP control unit Determination of acceptable sequence number ranges in a communications protocol.

Also, any words or phrases used herein in the singular may be interpreted to cover their plurality, unless clearly described to the contrary.

Also, certain aspects of the related or conventional art, which may be a basis for the present invention, may have not been explained but could be understood by those skilled in the art.


So, keep in mind while going through spec document. In one embodiment, the method further includes if sequence numbers are assigned to the predetermined number of or more PDCP SDUs, returning to the determining step. It means that Signaling Message does not go through this Header Compression. Interface to terminate PDCP contexts: First of all, the user data transmission and reception process according to the conventional art will be described below.

Pdcp sae bearer control ciphering and integrity protection of nas signaling. Also, if a technical term herein is not specifically defined in a different manner, such will be interpreted to have the meaning that one of ordinary skill in the art would understand, without an excessively broad or excessively narrow interpretation.

It is linking wireless technology with wired technology. This protocol sends and receives packets to and from UE and eNodeB over air interface. The WTRU entity of claim 6wherein the predetermined number is This PDCP entity consists of a transmitting side and a receiving side.

Mobile communication system and method for processing handover procedure thereof.

US8804742B2 – PDCP packet transmission method – Google Patents

So I will leave this to the readers to interpret the diagram. Reduced latency, higher user data rates, improved system capacity and coverage.

For example, the method of the present invention can be implemented as codes or commands of a software program that can be executed by a processor, and can be saved in a storage medium e. Accordingly, LastSucceededSN is set to Pdcp phy mme sgw s1 mac inter cell rrm radio admission control rlc eutran epc.


Now let’s follow through the diagram from left side. If ciphering is properly performed, no data loss occurs. Pdcp and rlc have less contribution to cplane overhead because these layers are involved only in transportation of dcch for nonaccess stratum nasevolved packet core epc access stratum asevolved packet core epc connection.

Note that there is no header compression for control plane data. Fourth-generation mobile communication is the fourth generation of wireless mobile communications standards.

Newer Post Older Post Home. But if you list up all the detailed functions of PDCP, you would get pretty long list as shown below. One thing to note is that these procedures are described from UE context.

PDCP is a layer sitting at the top most part of the radio stack. Some elements or steps may not need to be present, or additional elements or steps may also be present.

The left side depicts the transmitting side having a buffera header compressora security handling unitand a PDCP header attachment unitwhile the right side depicts the receiving side having a PDCP header removal unita security handling unita header decompressorand a buffer Posted by Srini at Hence this information from source eNB needs to be sent to the target eNB.

How enodeb pdcp layer aggregates data if rlc layer sends incorrect sequence in case of. LTE Long Term Evolution is one of the 4th generation wireless standards designed to increase the capacity and speed of mobile telephone networks.