A high speed 3g mobile wireless technology with capacity to offer higher data rate than cdma. Wcdma including the ran radio access network and the cn core network. Code division multiple access technology mobile device investigations program technical operations division. Also, know about frequency bands used in 3g networks. Wcdma has the capacity to easily handle bandwidthintensive applications such as video, data, and image transmission necessary for mobile internet services. You can easily clear job interviews and college exams after taking this test.
Itu imt2000 compliant 3g standards included edge, tdscdma, and wimax. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. Cdma architecture soft handoff cdma systems requires a. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. The basic difference between the cdma and wcdma is bandwidth,cdma uses 1. Global system for mobile communication technology mobile device investigations program technical operations division. Harri holma, principal engineer at nokia siemens networks, finland antti toskala, head of 3gpp radio standardization, nokia siemens networks, finland. Cs core network part of wcdma, which includes mgw and msc server is completely replaced.
What is wideband code division multiple access wcdma. Again cdma is 2g telecommunication standard and provide very less data rates compared to wcdma which is third g. Both the ue and the utran are composed of different layers. The coexistence network of different 3g technologies wcdma and cdma2000 requires analysis of its adjacent channel interference. Difference between wcdma and lte compare the difference. Easily clear job interviews and college exams after studying these multiple choice. Click download or read online button to get wcdma for umts book now. Study these interview mcq questions and answers on 3g umts wcdma network architecture and interfaces. Wcdma was adopted as a standard by the international mobile telecommunications. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure. The ms is the mobile subscriber equipment, which can originate and receive calls and communicate with the bts. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station highlevel functions umts domains and strata umtsgprs protocol architecture references. Wcdma ran planning and optimization huawei book1 wrnpo basics. Cn core network is responsible for transport functions such as switching and routing calls and data, tracking users usim me.
This corresponds to the second level in the diagram. Umts works on wcdma, cdma2000 and tdscdma implementations by 3gpp. Umts system architecture ue user equipment that interfaces with the user utran umts terrestrial radio access network handles all radio related functionality wcdma is radio interface standard here. Lte provides much simpler and flat network architecture than that of the wcdma. Evolution of the 3gpp network architecture, the evolved packet core dr. All the usual functions enabling access toth e network, roaming and the like are also supported. Wcdmahspa basics for umts kari aho project and business development manager kari. Wcdma wide band code division multiple access umts before we talk about 4g or gsm. Also, the spectral efficiency is much higher in lte than that of the wcdma. By standard the gsm network is divided into four 4 subsystems 1.
Architecture elements, data flow power control fast, slow. The wcdma infrastructure is compatible with gsm mobile radio communication system. Evolution types evolution contains not only technical evolution but also expansion to network architecture and services. Evolutionary analysis of gsm, umts and lte mobile network. Base level umts networks are generally capable of downlink speeds as 384 kbps. In this paper, we investigated the interference on wcdma system. Radio access network gsmgprs core network bss pstn, isdn bts bsc msc vlr. The rnc, node b and ms together are called the serving radio network system srns. Wcdma system overview ran architecture the main purpose of the wcdma radio access network is to provide a connection between the handset and the core network and to isolate all the radio issues from the core network. Pdf wcdma ran planning and optimization huawei book1. What is the difference between bitrate and chip rate. The umts world is an 3g mobile system news and information provider. They coedited the books lte for umts ofdma and scfdma based radio access, hsdpahsupa for umts.
What is the difference between cdma and wcdma networksim. You must know wcdma which stands for wide band code division multiple access. The ran is used to process all the radiorelated functions, while the cn is used to process all voice calls and data connections within the umts system, and implements the function of external network switching and routing. Cdma2000 and wcdma were the most commercially successful. In 2008, australian telco telstra replaced its existing cdma network with a national umtsbased 3g network, branded as nextg, operating in the 850 mhz band.
This keeps information about the users phone number, home network identity and security keys etc. Wideband code division multiple access wcdma is a thirdgeneration 3g standard that employs the directsequence code division multiple access dscdma channel access method and the frequencydivision duplexing fdd method to provide highspeed and highcapacity service. This site is like a library, use search box in the widget to get ebook that you want. A usim stores userspecific data very similar to 3g sim card. The ue is the mobile phone and the utran is the base station and the network intelligence. Evolutionary analysis of gsm, umts and lte mobile network architectures paschal a. The user equipment or ue is a major element of the overall 3g umts network architecture. Wcdma is a third generation mobile communication system that uses cdma technology over a wide frequency band to provide highspeed multimedia and efficient voice services. Cdma network architecture consists of following elements mobile station ms. Umts networks andreas mitschelethiel, jens muckenheim oct12 1 umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station highlevel functions umts domains and strata umtsgprs protocol architecture references. Umts system architecture usim me node b node b node b rnc rnc mscvlr hlr gmsc pstn internet telcom 2720 ue user equipment that interfaces with the user utran umts terrestrial radio access network handles all radio related functionality wcdma is radio interface standard here. Core network is composed of circuit switched and packet switched functional modules. To save battery life, im planning to switch from the automatic to the manual mode, and i want to know what happens if i stick to gsm or wcdma.
Radio access network architecture wcdma for umts wiley. Telstra currently provides umts service on this network, and also on the 2100 mhz umts network, through a coownership of the owning and administrating company 3gis. This lecture of the concept of spreading in wideband cdma wcdma or umts networks. The advantage is one core network supporting multiple access technologies. Wcdma for umts download ebook pdf, epub, tuebl, mobi. Umts makes use of wcdma, a technology that shares much with cdma networks used throughout the world, though it is not compatible with them. The network elements are grouped into the radio access network ran. Request pdf an introduction to 3g core network architecture. The open architecture of the wcdma core network wideband code division multiple access wcdma is a 3rd generation mobile.
What is the technical difference between selecting gsm and selecting wcdma in network mode settings menu. User equipment the 3g system consists of two main parts. As a result, sae calls for a transition to a flat, allip core network, called the evolved packet core epc, that features a simplified architecture and open interfaces as defined by the 3gpp standards body. The architecture for a umts network was designed to enable packet data to be carried over the network, whilst still enabling it to support circuit switched voice. World scientific news 54 2016 2739 29 the gsm architecture is made up of majorly three subsystems which include the mobile station, network and switching subsystem nns, and the base station.
Multilevel simulation of wcdma systems for thirdgeneration wireless applications dr. Umts network is called a third generation network3g. Summarizes and surveys current lte technical specifications and implementation options for engineers and newly qualified support staff concentrating on three mobile communication technologies, gsm, 3gwcdma, and ltewhile majorly focusing on radio access network ran technologythis book describes principles of mobile radio technologies that are used in mobile phones. The interference on wcdma system in 3g coexistence network. It is a third generation network developed by ntt docomo and from 2g network cdma.