Lte longterm evolution 4g significantly higher performance in a wide range of spectrum allocations downlink up to 300 mbits uplink up to 75 mbits reduced latency 10 ms rtt packetswitched services only studies spec s lte hsdpa hspa hspa evolution 2002 2004 2006 2008 requirements wcdma 2005 2007 stefan. Physical layer carries all information from the mac transport channels over the air interface. Technical specification ts initial planned release. Header compression and decompression of ip data flows using the rohc protocol transfer of data. The 5g architecture consists of all rans, aggregator, ip network, nanocore etc. Structure of the 3gpp nr 5g specification techplayon. Pdcp layer architecture varies the user plane and control plane, as shown in the below 2 figures. Pdcp provides its services to the rrc and user plane upper layers. The lte transport network is based on ip technology 5. The x2 interface is defined between two neighbour enbs. The userplane transport protocols are implemented for both the s1 interface i. This page describes 5g network architecture with its elements. Packet layer packet data convergence protocol pdcp. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g.
Lte nas,rrc,mac, pdcp and rlc at radio interface telco. In umts the radio protocols terminate in rnc, but these terminate in enodeb for lte. The physical layer itself maintains the continuous connection model, especially on the downlink, where there is continuous transmission. If you continue browsing the site, you agree to the use of cookies on this website. Rrc provides configuration for all layers which terminates at the eutran enodeb. The present document provides the description of the packet data convergence protocol pdcp. Review open access overview of enabling technologies for. In lte deployments, smooth handover support is required between 3g2g and lte networks, and evolved packet core epc is designed to be a common packet core for different access technologies. If you are looking the official versions as published by the 3gpp partners, see the official publications page. Insequence delivery of upper layer pdus at pdcp reestablishment procedure for rlc am. All 3gpp specifications are publicly available on the 3gpp server.
The reference sensitivity power level is the minimum mean power received at the antenna connector at which a throughput requirement shall be met for a specified reference measurement channel. Lte evolved universal terrestrial radio access eutra radio link control rlc protocol specification. References are either specific identified by date of publication, edition number, version number, etc. Pdcp is an abbreviation for packet data convergence protocol. Which provides a tremendous savings in the amount of header that would otherwise have to go over the air. Lte provides a packet switched model at the sap, but retains a circuit switched model at the phy. However, you may see the pdcp packet with dc field 0 i. Lets have a close look at all the layers available in eutran protocol stack which we have seen in previous chapter. Proceedingseusipcoeusipco2009contentspapers1569184698.
Rlc is just in between pdcp and mac and is controlled by rrc protocol. Lte advanced dual uplink interband carrier aggregation ca tr 36. Study on lte fdd in the bands 19802010 mhz and 21702200 mhz. Lte layer 2 user plane protocol stack in detail teletopix. This technical specification ts has been produced by etsi 3rd generation. Lte mac, rlc, and pdcp may 2012 bong youl brian cho. The lectures also cover channel mapping and ue categories. This means that no existing spec is ever missing from the latest folder, which now contains the latest available version of each spec in each release.
Pdcp removes ip header minimum 20 bytes from pdu, and adds token of 14 bytes. Lte now supports an intelligent enodeb which combines the functions of umtss nodeb and rnc. Functions and architecture of pdcp in lte teletopix. Jun 01, 2015 rlc is just in between pdcp and mac and is controlled by rrc protocol. This page provides guidance as to how to find the specifications you are seeking. There is a misconception among some of the industry followers that lte systems configured to operate in unpaired lte tdd or paired lte fdd spec. The pdcp is located in the radio protocol stack in the umts lte 5g air interface on top of the rlc layer. Takes care of the link adaptation amc, power control, cell search. Each one of the main functions is explained in the following subsections. Maci message authentication code integrity it is a special field added by the packet data convergence protocol pdcp layer to each rrc message for the purpose of integrity protection. Lte system performance optimization by red based pdcp buffer.
The ue the ue is the terminal of the ims architecture, and resides with the user. Lte evolved universal terrestrial radio access eutra packet data convergence protocol pdcp specification. Pdcp layer submits pdcp pdus rlc sdus to rlc layer. The pdcp layer in lte performs the following functions. Most of the lte pdcp pdu you woud see would be the data pdu. This technical specification ts has been produced by etsi 3rd generation partnership project 3gpp. Lte technology is a based on a 3gpp standard that provides for a downlink speed of up to 150 megabits per second mbps and an uplink speed of up to 50. From theory to practice provides the reader with a comprehensive systemlevel understanding of lte, built on explanations of the theories which underlie it. This document defines the volte service description and implementation guidelines in. The pdcp is located in the radio protocol stack in the umtslte5g air interface on top of the rlc layer. Lte evolved universal terrestrial radio access e utra packet data convergence protocol pdcp specification.
Long term evolution protocol overview nxp semiconductors. Initially the dual connectivity solution with lte as the master and nr as salve prioritize, later on nr can be the master or an nr gnb serves as a standalone base station. Lte advanced dual uplink interband carrier aggregation ca specification withdrawn. Below is a more ellaborated diagram of eutran protocol stack. Download implementation aspects of 3gpp tdlte complete project report.
Packet data convergence protocol pdcp in the lte radio protocol stack, the pdcp layer is located above the rlc layer and below the ip layer in the user plane or the rrc layer in the control plane. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. The 3rd generation partnership project 3gpps long term evolution lte standards. Gprs tunnelling protocol for the user plane gtpu tunnels user data between enodeb and the sgw as well as between the sgw and the pgw in the backbone network. A simulation implementation of the lteuu interface datalink layer. Aug 01, 2015 telecommunication design systems engineering realtime and embedded systems pdcp pdu fields 2 0 control pdu. There are now no gaps representing anticipated new versions of specs. According to 1 the desired lte signal will be raised to 70. Lte system performance optimization by red based pdcp. Etsi ts 1 evolved universal t packet data converg 3gpp ts 36. Implementation aspects of 3gpp tdlte complete project report pdf free download.
Rel8 lte 3g long term evolution evolved packet system ran part. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. Below the list of future 5g specifications can be seen that will be created in the process of standardizing the new 5g radio. Nov 27, 2011 presentation on long term evolution lte from a 3gpp standard perspective slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Most of the lteadvanced specifications are set to meet or exceed the imtadvanced requirements, which makes the lteadvanced a strong candidate for the imtadvanced system. Pdcp data pdus are used for data plane both the control and the user.
Rest reserved pdu type 3 bit pdcp sn of the first missing pdcp sdu fms 12 bit the msb of the first octet of. Packet data convergence protocol pdcp in pdcp, specification, lte. Presentation on long term evolution lte from a 3gpp standard perspective slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Two different types of pdu pdcp are defined in lte.
Real world conditions affecting lteltea device performance channel and network factors that impact mobile device performance multipath link loss fading conditions doppler speed degree of spatial diversity noise and interference conditions transmission mode used influence of retransmissions and adaptive modulation and coding. Lte layer 2 user plane protocol stack in detail lte user layer 2 protocol stackthe plan is composed of three substrates, as shown in the figure. The pdcp is located in the radio protocol stack in the umts lte 5g air 3gpp ts packet data convergence protocol. The main services and functions of the pdcp sublayer for the user plane include.
Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. This is followed by lectures that cover lte frequency bands, ofdm, ofdma, scfdma and lte signaling. Volte roaming is defined in the lte roaming guidelines gsma prd ir. Packet data convergence protocol pdcp specification. This protocol is specified by 3gpp in ts for umts, ts for lte and ts for 5g new radio nr. Dynamic range test case for a 5 mhz lte signal the following example describes a dynamic range test case for a 5 mhz lte signal. On another side, the control plane of 5gnr is identical to lte, here mme equivalent node named as amf access and management mobility function. Volte service description and implementation guidelines. Overview long term evolution lte is the next step forward in cellular 3g services. Review open access overview of enabling technologies for 3gpp. Following two data structure is a kind of pdcp layer control packet.
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