This document provides a brief overview of the lte network architecture as the first technical document of lte area. This tutorial on umts covers protocol stack of umts system. Effect of network protocol and application behavior on performance junxian huang8 feng qian9 yihua guo8 yuanyuan zhou8 qiang xu8 z. Lte is a purely packetoriented technology developed in accordance with the 3gpps system architecture evolution sae effort. Aug 08, 2018 a protocol is a system of digital rules for message exchange between telecom nodes in order for one node to communicate with another. Lte protocols 16 tcpip sits on top of the cellular protocol stack. Is it possible to produce a copy without the mbms elements. Harrington, in ethernet networking for the small office and professional home office, 2007. Ng radio access network ng ran 61 figure 2 overall ngran architecture. Now lets take a close look at all the layers which are available in eutran protocol stack seen in previous chapter. Lte provides downlink peak rates of at least 100mbits, 50 mbits in the.
Interfaces and their protocol stacks lte and beyond tech. Tcpip sequence diagrams tcpip explained with sequence diagrams. Readies packets to be transferred over the air interface. The protocol stack or network stack is an implementation of a computer networking protocol suite or protocol family. Just take a brief look at the various figures diagrams shown in this page would be enough. Umts protocol stack consists of access stratumas and non access stratumnas.
For devices operating in remote locations, message queuing telemetry transport mqtt is often suggested as the preferred messaging protocol. Lte security, protocol exploits and location tracking. The user plane protocol stack between the enode b and ue consists of the following sublayers. All important functions of the layer2 and layer3 protocols can be verified in the virtual test environment of the cmw500, for example. The downlink direction from network to terminal is covered first. Most of the fundamental idea in this page comes from 3gpp 38. Figure 2 shows the user plane protocol stacks for the lte network reference model shown in figure 1. All these features make lte a very attractive technology for operators as well as the subscribers. This course therefore sets out to provide a detailed explanation of the lte protocols that can be found within the eutra, eutran and epc. An overview of telecom wireless protocol stack layers nutaq. Some of these terms are used interchangeably but strictly speaking, the suite is the definition of the communication protocols, and the stack is the software implementation of them individual protocols within a suite are often designed with a single. Lte protocol stack layers in lte tutorial 10 may 2020 learn. The figure1 depicts 5g protocol stack consisting of both user plane and control plane protocol layers.
A case study on protocol stack integration for 3gpp lte evolved node b. Realtime and embedded system articles realtime and embedded systems, call flows and. Great document and easiest visualisation of protocol stack. Know protocol stack of lteuu radio interface know the main physicalrrcnas layer procedure know protocol conformance testing of 4glte terminal. If you are already familiar with lte protocol stack or general concept of radio protocol stack, you would not need to spend too much time in reading this page. Pdcp packet data convergence protocol, rlc radio link control, and. Pdf a case study on protocol stack integration for 3gpp. It consists of phylayer 1, maclayer 2,rlclayer 2 and rrclayer 3. Besides these methodological contributions, we make the following insightful observations about lte network usage. The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown in figure 3 and figure 4. When we closely see both the protocol stack we could see many similarities between lte protocol stack and 5gnr protocol stack because lte protocol stack is being taken as the base line for the development 5gnr. As in lte wcdma, nr radio protocol stack has two different stack depending on the type of data that is processed by the stack.
Note that icmp is a layerthree protocol, but icmp packets are encapsulated in an ip packet similar to transportlayer packets. The physical layer is the protocols interface to the real world. Jan 08, 2012 protocol stack of s12 interface used to connect ue from 3g network to pdn where. Ueprose function control plane for pc3 interface the control plane stack consists of protocols for control and support of the user plane functions. Lte uu enodeb serving gw pdn gw prose function s1u s5s8 sgi figure 3. Enhancement of the utra optimisation of the utran architecture to ensure the continued competitiveness of the 3gpp technologies for the future lte was the first and only technology recognized by the next generation mobile network alliance to meet its broad requirements target deployment in 2010. S1, s3, s4, s5 or s8, s6a, s10, s11, s and x2 interfaces of the lte network. Our results suggest that the lte protocol stack can operate synchronously, thus. Look up protocol stack on wikipedia for a discussion of the basic concepts of a protocol stack.
Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. Pdf a case study on protocol stack integration for 3gpp lte. Gls lte protocol analyzer within packetscan all ip protocol analyzer is capable of capturing, decoding and performing various test measurements across various interfaces i. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. Lte protocol stack physicalrrcnas layer procedure of 4g lte terminal protocol conformance testing of 4g lte terminal.
The x2 interface is defined between two neighbour enbs. Lte test scenarios then verify the behavior of the protocol stack on the wireless device end. However, as mentioned in the preceding section, the osi protocol stack is a theoretical model that provides a convenient framework for discussing. Interfaces and their protocol stacks lte and beyond. Lte s6as6d interface description 9106857001 revision a 10 2. First, the lte network reference model is defined and its basic evolved packet system eps entities and the functions of each entity are described. These architecture options are depicted in the subsections below. Some of these terms are used interchangeably but strictly speaking, the suite is the definition of the communication protocols, and the stack is the software implementation of them. This protocol tunnels user data between utran and the s gw as well as between the s gw and the p gw in the backbone network. Nr radio protocol stack architecture is almost same as lte radio protocol stack architecture. The state oftheart lte protocol design is the result of a careful crosslayer approach where the protocols interact with each other efficiently. Transport channels are located between the physical layer and mac layer.
Furthermore, to enhance the explanations, the course incorporates real use cases and examples through the use of. Also see the osi model, which is a standard example. The goals for lte include improving spectral efficiency, lowering costs, improving services, making use of new spectrum and reformed spectrum opportunities, and better integration with other open standards. As defined by 3gpp, lte layer 2 structure consists of pdcprlcmac layers.
Currently the most advanced open source implementation of the lte stack. At user plane side, the application creates data packets that are processed by protocols such as tcp, udp and ip, while in the control plane, the radio resource. Evolved universal terrestrial radio access network eutran. Based on the eps entities and interfaces defined in chapter ii, the lte protocol stacks for the user plane and control plane are described in chapter iii. These layers are implemented differently in each wireless protocol. Lte is a system defined by 3gpp, which is an international partnership of interested companies. For umts cs user plane stack nas part do not include cm and mm layers but it includes application data layer protocol end to end between uenodebrncmscremote user. Below diagram is a more ellaborated explaining eutran protocol stack. How to verify your lte protocol and rf interactions. The protocols used in the air interface, from the viewpoint of the mobile.
The purpose of this page is to provide you with some big picture or intuitive understanding of the radio protocol stack. A unified protocol stack solution for lte and wlan in future mobile converged networks article pdf available in ieee wireless communications 216. The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown below at user plane side, the application creates data packets that are processed by protocols such as tcp, udp and ip, while in the control plane, the radio resource control rrc protocol writes the signalling messages that are exchanged between the base station and. Lte protocol stack layers lets have a close look at all the layers available in eutran protocol stack which we have seen in previous chapter. A protocol is a system of digital rules for message exchange between telecom nodes in order for one node to communicate with another. Pdf a unified protocol stack solution for lte and wlan. The main lte open source implementations being actively developed can be summarized as follows1. Pdf a unified protocol stack solution for lte and wlan in. This article provides a thorough overview of this protocol stack, including the sublayers and corresponding interactions in between them, in a manner that is more intuitive than in the respective. Jun 01, 2008 lte test scenarios then verify the behavior of the protocol stack on the wireless device end. In this blog post, i describe gsm and lte in order to illustrate the differences and similarities between protocol stack implementations. The protocol architecture of lte the 3gpp is completely reworking the network and protocol architecture of umts so lte can support high data rates and short latency times. Optimized iot applications, however, require a specialized applicationlevel data transport protocol and an iotcentric communications stack.
The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown below. The appletalk protocol stack and novell netwares protocols are based on the osi protocol stack. These scenarios can include a simple connection setup or more complex reconfigurations. Protocol stack of s12 interface used to connect ue from 3g network to pdn where. Ng radio access network ng ran balazs bertenyi1, richard burbidge2, gino masini3, sasha sirotkin4 andyin gao5 1chairman of 3gpp tsgran, hungary 2chairman of 3gpp ran2, senior wireless systems architect at intel corporation, shrivenham, oxfordshire, uk 3chairman of 3gpp ran3, systems manager concepts and standards, at lm ericsson ab, stockholm, sweden. An uplink packet is then described, highlighting any differences. For ps functions if consists of smsession management and gmmgprs mobility management layers. Next, the interfaces between the eps entities and the protocol stack. Long term evolution protocol overview nxp semiconductors. It provide very detail of lte protocol stacks on ue side.
Ble protocol stack corresponds to multiple profiles. Lte protocol stack layers in lte tutorial 10 may 2020. Ble protocol stack profiles page 10 ble protocol stack has the functionality to communicate data in accordance with the gattbased profile adopted by bluetooth sig such as the follows. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown below at user plane side, the application creates data packets that are processed by protocols such as tcp, udp and ip, while in the control plane, the radio resource control rrc protocol writes the signalling messages that are exchanged between the base. The 5g layer3 is rrc layer as shown in 5g protocol stack. Fmpfind me, pxpproximity, htphealth thermometer, hrpheart rate, blpblood pressure, glpglucose.
Lte protocol stack figure 2 depicts the lte protocol stack in cooperation with imp4g imp4g thelte. Three lower layer stacks consists of 1st layer as physical layer followed by mac or data. Controlling the configuration of prose enabled ues controlling prose direct discovery. Mac multiplexes rlc links and manages scheduling and priority handling via logical channels.
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