Type 1, applicable to fdd, type 2, applicable to tdd. A radio access network ran is the part of a telecommunications system that connects individual devices to other parts of a network through radio connections. Standardizing network systems on gsm and umts and beyond based on gsm legacy 2g, 3g radio accesses gsm radio interface. High speed radio access for mobile communications and wcdma for umts, 4th edition. They coedited the books lte for umts ofdma and scfdma based radio access, hsdpahsupa for umts. And allocate the wireless resources of the radio access network composed of. This interface is considered as one of the most important economic factors for the umts network dimensioning. Utran and geran based radio access network connect to the same core network 5. Umts universal mobile telecommunications system utran umts radio access network 4 kpi overview the following kpi categories are covered by the present document. Furthermore, evolved umts networks such as hsdpa and hsupa, and the evolved transport from atm to ip are investigated. Li, xi radio access network dimensioning for 3g umts elib. Gsns constitute the interface between the radio access network and the fixed networks for packet switched services similar to msc for cs calls serving gsn sgsn. A radio access network is a technology that connects individual devices to other parts of a network through radio connections. The theoretical capacity models for the downlink and the uplink of the umts radio access network have been researched ever since the umts started to be considered.
For each evolution of the umts radio access network, its specific protocol stacks, important features, its specific traffic and resource control functions and their impacts on the iub dimensioning are studied. Umts radio access network in umts tutorial 20 april 2020. It will also appeal to system designers, technical managers and students. Umts network architecture and elements mobile station. Umts system architecture and protocol architecture. Click download or read online button to get radio access network dimensioning for 3g umts book now. The cross reference between gsm, umts, 3gpp and etsi identities can be found. Due to the peculiarities of the code division multiple access cdma scheme used in 3g cellular systems like umts and cdma2000, network planning cannot be based only on signal predictions, and the approach. Starting from the highlevel network architecture, the first sections describe the. It resides between a device such as a mobile phone, a computer, or any remotely controlled machine and provides connection with its core network cn, devices are varyingly known as user equipment ue. Umts radio access network in umts umts radio access network in umts courses with reference manuals and examples pdf.
Radio access network tutorial pdf the entities in utran are. The network elements are grouped into the radio access network ran. However, they were often based on idealistic assumptions and addressed a static. Ericsson lte ran continues to bring a great experience for mobile broadband. The proposed tutorial will be a collections of background, stateoftheart, and open research topics in the area of cloud radio access networks. This thesis studies the dimensioning for umts radio access networks. Radio access network for umts pdf this book provides a comprehensive description of radio access networks for umts. A 5g nr radio access network node has been named the next generation node b gnb by 3gpp.
Two other types of rans are umts terrestrial radio access network utran, which supports both circuitswitched and packetswitched. In this thesis, dimensioning is investigated with specific focus on the transport network of the iub interface, which connects the node b with the rnc. Umts and gsmedge can share a core network cn, making utran an alternative radio access network to geran gsmedge ran, and allowing mostly transparent switching between the rans according to available coverage and service needs. An important means for improving the costefficiency in modern mobile radio networks is to dimension the radio access network carefully. Radio access network an overview sciencedirect topics. Radio access network architecture wcdma for umts wiley. Umts radio access network the more general term evolved radio access network eran, can also be used as part of signaling protocols, as the term access stratum as can be used. Radio access networks for umts is ideal for mobile telecommunications engineers working for equipment vendors, operators and regulators.
The cross reference between gsm, umts, 3gpp and etsi identities can be found under. A ran resides between user equipment, such as a mobile phone, a computer or any remotely controlled machine, and provides the connection with its core network. Use features like bookmarks, note taking and highlighting while reading radio access networks for umts. Radio access network dimensioning for 3g umts elib bremen. Harri holma and antti toskala both work on cutting edge technologies for mobile communications today. Principles and practice kindle edition by johnson, chris. For example, in 3g umts and 4g lte, the network node is termed node b nb and evolved node b enb, respectively. Several milestones now increase capacity and speed by ten times since the start of lte. The main content is based upon the release 6 version of the 3gpp specifications. Note that standards use terminology node b for base. Download it once and read it on your kindle device, pc, phones or tablets. Handover between lte and 3g radio access technologies. Performance measurements evolved universal terrestrial radio access network eutran etsi 3gpp ts 32.
The umts network and radio access technology air interface techniques for future mobile systems dr. The overall radio network access system of the umts is considered as the utran. Changes since the release 99 version are described while some of the new. Starting from the highlevel network architecture, the first. The 3g umts core network architecture is a migration of that used for gsm with further elements overlaid to enable the additional functionality demanded by umts. Radio planning and coverage optimization are critical issues for service providers and vendors that are deploying third generation.
Release99 structure was inherited from gsm core network both. Pdf today, mobile network operators have a variety of options for the means of. This paper discusses the use of carrier ethernet for the transport of umts radio access network as a alternative solution for the gradual migration towards pure ipbased ran. Document format pdf version kept on a specific network drive within etsi secretariat.
The system is used in a trunking mode and transports the traffic exchanged between the terrestrial network and the local network. Evolved universal terrestrial radio access eutra and evolved universal terrestrial radio access network eutran. A radio access network ran is part of a mobile telecommunication system. Radio access network dimensioning for 3g umts request pdf. Radio access network dimensioning for 3g umts springerlink. By means of pseudowire technique, the atm service is emulated over the. Evolutionary analysis of gsm, umts and lte mobile network. Radio access network dimensioning for 3g umts xi li. This site is like a library, use search box in the widget to get ebook that you want.
Utran short for universal terrestrial radio access network is a collective term for the network and equipment that connects mobile handsets to the public. Downlink and uplink transmissions are organized into radio frames with 10 ms duration. It is a major part of modern telecommunications, with 3g and 4g network connections for mobile phones being examples of radio access networks. Radio network planning and optimisation for umts request pdf. Pdf carrier ethernet for transport in umts radio access.
Test measurement challenges and field environment test planning. Utran umts terrestrial radio access network handles all radio related functionality wcdma is radio. It was the combination of these two network elements that provided the basis for the 3g umts network architecture. This thesis investigates the dimensioning of the umts radio access network with specific focus on the iub interface, which connects the node b and the rnc. The more general term evolved radio access network eran, can also be used as part of signaling protocols, as the term access stratum as can be used. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Utran short for umts terrestrial radio access network is a collective term for the network and equipment that connects mobile handsets to the public telephone network or the internet. Radio planning and coverage optimization of 3g cellular. This thesis provides an elaborate analysis of important aspects related to umts radio access network.
Umts radio access network umts networks wiley online. The radio network subsystem is also known as the umts radio access network or utran. The additional of packet data with gprs required additional network entities to be added. It is presented without lost capacity of the umts radio access network 5 the ioutage in the formula 5. The radio access network changed considerably as a completely new radio interface was used based around the use of cdma. This thesis provides an elaborate analysis of important aspects related to umts radio access network dimensioning and based on that presents a general umts network dimensioning framework and. Umts supports a variety of user data rates and both packet and circuit switched services system composed of three main subsystems telcom 2720 4 umts system architecture ue user equipment that interfaces with the user utran umts terrestrial radio access network handles all radio. Xi li radio access network dimensioning for 3g umts. Because of that, umtss and gsmedges radio access networks are sometimes collectively referred to as utrangeran. The main content is based upon the release 6 version of the 3gpp.
In 3gpp terminology, a base station is an implementation of a logical radio access network node. It contains the base stations, which are called node bs and radio network controllers rncs which make up the umts radio access network. It contains the base stations, which are called node bs and radio network controllers rncs1 which make up the umts radio access network. This book provides a comprehensive description of radio access networks for umts. The intermediate module constitutes an entry point for a local.
The comparison reveals that eutran consists of one type of nodes, namely evolved node b enodeb, and the variety of interconnections is. The satellitebased system is inserted within a radio access network of the tumts. Xi li presents innovative analytical models and algorithms for the dimensioning of the 3g umts radio access network ran. Wcdma radio access network ran are both connected to the gsm core network for providing a radio. Lte ran brings you software for gigabit speeds, using fdd and tdd, housed flexibly on one board. Pdf lost capacity of the umts radio access network. Changes since the release 99 version are described while some of the new features from the release 7 version are introduced.
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