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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But putting all together the following diagram from 3GPP If there are any pending DL packets, they get retransmitted with new cipher context. I also had some confusion on PDCP discard for some time. 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.
Seemless handover is typically used for radio bearers carrying control plane data and user plane data that is mapped to RLC UM Unacknowledged mode.
In the steps and may be reversed in order or processed in parallel. In the case of using an ciphering algorithm other than Null, if or more PDCP SDUs with sequence numbers SNs assigned thereto are discarded, the HFN value used by the transmitting side and the HFN value used by the receiving side are different from each other, which is an invalid deciphering result, and therefore data loss may occur at the application end.
In one embodiment, the predetermined number is based on the size of a reordering window. I have written this description based on my understanding of PDCP specifications.
The technical terms and phrases used herein are used to describe features in particular embodiments, and are not meant to limit the concepts of the present invention. As illustrated in FIG.
Packet Data Convergence Protocol .pdf
Lte a pdxp primarily designed to help support and accelerate the overall development and test program. Interface to inform SRB data indications: The method of claim 1wherein the receiving step, the determining step, and the assigning step are implemented by a PDCP entity.
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.
If not take a log and debug message exchange make edits as required with message editor ul nas rrc pdcp rlc mac phy ip ue nas rrc pdcp rlc mac pvcp ip rf slide This PDCP entity consists of a transmitting side and a receiving side. The first diagram is as follows.
USA1 – Pdcp packet transmission method – Google Patents
LTE Long Term Evolution is one of the 4th generation wireless standards designed to increase the capacity and speed of mobile telephone networks. Pte and apparatus for supporting configuration and control of the rlc and pdcp sub-layers. Using this interface point, PDCP informs the content of status transfer message to the control plane.
Data is also transferred via a physical channel between a physical layer of a transmission side and a physical layer pdvp a reception side.
Lte pdcp spec pdf files
Multiple packets can be given at one time. So for any process, I usually tries to define what is the inputs and out is the final outputs.
For RBs for which the Discard Timer is to set to ms50, ms, ms, ms, ms, ms, and ms, rather than to infinity, upon receipt of data from upper layers, the PDCP layer starts the Discard Timer of the corresponding data. It is present in UE and eNodeB. The eNB 20 provides end points of a user plane and a control plane to the UE SN – Bin72 Dec. ppdcp
Hi Sakthibalan, Since it is linking two different technologies, I think it is called convergence protocol. PDCP is user plane protocol. Method for reordering a packet data convergence protocol packet data unit at a user equipment in a dual connectivity systme and device therefor. Sequence number is used to detect anti replays. In one embodiment, the predetermined number is based on the size of a reordering window.
Because the step of FIG. Some elements or steps may not need to be present, or additional elements or steps may also be present. According to 3g patent platform 3gpp release 8, lte was introduced providing spce access ppdcp.
In addition to the integrity protection function, the security handling unit also has a ciphering function that maintains data security, and such ciphering function applies to both U-plane data and C-plane data. Fourth-generation mobile communication is the kte generation of wireless mobile communications standards. One subframe includes a plurality of resource blocks, each of which includes a plurality of symbols and a plurality of subcarriers. The invention claimed is: If any terms herein spfc been erroneously used or not completely technically accurate, then such terms may be clarified or interpreted as those skilled in the art would deem appropriate.
A radio resource control RRC layer located at the lowest portion of the third layer L3 is defined only in the control plane and controls logical channels, transport channels and the physical channels in relation to the configuration, reconfiguration, and release of radio bearers RBs. As such, various modifications, changes, equivalents and replacements are part of the inventive features described throughout this description.
Packet Data Convergence Protocol (PDCP)
If somebody finds any inconsistency or if i had made any mistakes, please drop a comment or send an email. In addition, one subframe includes a plurality of symbols e. Method for reordering a packet data convergence protocol packet data unit at a user equipment in a dual connectivity system and device therefor.