Wcdma network architecture pdf

The basic difference between the cdma and wcdma is bandwidth,cdma uses 1. 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. Global system for mobile communication technology mobile device investigations program technical operations division. The wcdma infrastructure is compatible with gsm mobile radio communication system. The rnc, node b and ms together are called the serving radio network system srns. Radio access network gsmgprs core network bss pstn, isdn bts bsc msc vlr. 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. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure. What is the technical difference between selecting gsm and selecting wcdma in network mode settings menu. You can easily clear job interviews and college exams after taking this test. Difference between wcdma and lte compare the difference. Take this free onlinetest or quiz or trivia on the 3g umts mobile network architecture and interfaces. This keeps information about the users phone number, home network identity and security keys etc.

Also, know about frequency bands used in 3g networks. 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. All the usual functions enabling access toth e network, roaming and the like are also supported. Wcdma including the ran radio access network and the cn core network. The open architecture of the wcdma core network wideband code division multiple access wcdma is a 3rd generation mobile. What is the difference between bitrate and chip rate.

Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. The umts world is an 3g mobile system news and information provider. Easily clear job interviews and college exams after studying these multiple choice. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. This corresponds to the second level in the diagram. Umts network is called a third generation network3g. The user equipment or ue is a major element of the overall 3g umts network architecture. By standard the gsm network is divided into four 4 subsystems 1. 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. The highlevel network architecture of lte is comprised of following three main components. Evolution of the 3gpp network architecture, the evolved packet core dr. 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.

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. Evolution types evolution contains not only technical evolution but also expansion to network architecture and services. One example is handover between the new wcdma network and the existing gsm network, which can be triggered by coverage, capacity or service requirements. Again cdma is 2g telecommunication standard and provide very less data rates compared to wcdma which is third g.

Lte provides much simpler and flat network architecture than that of the wcdma. Both the ue and the utran are composed of different layers. In this paper, we investigated the interference on wcdma system. Wcdma was adopted as a standard by the international mobile telecommunications. What is wideband code division multiple access wcdma. Wcdma for umts download ebook pdf, epub, tuebl, mobi. Request pdf an introduction to 3g core network architecture. The interference on wcdma system in 3g coexistence network. 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. Wcdma ran planning and optimization huawei book1 wrnpo basics. Cs core network part of wcdma, which includes mgw and msc server is completely replaced.

The coexistence network of different 3g technologies wcdma and cdma2000 requires analysis of its adjacent channel interference. Cdma architecture soft handoff cdma systems requires a. Evolutionary analysis of gsm, umts and lte mobile network architectures paschal a. Umts works on wcdma, cdma2000 and tdscdma implementations by 3gpp. A usim stores userspecific data very similar to 3g sim card.

Base level umts networks are generally capable of downlink speeds as 384 kbps. This lecture of the concept of spreading in wideband cdma wcdma or umts networks. Umts makes use of wcdma, a technology that shares much with cdma networks used throughout the world, though it is not compatible with them. Also, the spectral efficiency is much higher in lte than that of the wcdma. 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. Core network is composed of circuit switched and packet switched functional modules. Pdf wcdma ran planning and optimization huawei book1. You must know wcdma which stands for wide band code division multiple access. Architecture elements, data flow power control fast, slow. 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. Radio access network architecture wcdma for umts wiley. It is a third generation network developed by ntt docomo and from 2g network cdma. The network elements are grouped into the radio access network ran.

Study these interview mcq questions and answers on 3g umts wcdma network architecture and interfaces. Code division multiple access technology mobile device investigations program technical operations division. 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. 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.

A high speed 3g mobile wireless technology with capacity to offer higher data rate than cdma. 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. They coedited the books lte for umts ofdma and scfdma based radio access, hsdpahsupa for umts. Wcdma has the capacity to easily handle bandwidthintensive applications such as video, data, and image transmission necessary for mobile internet services. The ms is the mobile subscriber equipment, which can originate and receive calls and communicate with the bts. Click download or read online button to get wcdma for umts book now. Wcdmahspa basics for umts kari aho project and business development manager kari. Multilevel simulation of wcdma systems for thirdgeneration wireless applications dr.

Wcdma wide band code division multiple access umts before we talk about 4g or gsm. 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. A umts network may work on wcdma, cdma2000 and tdscdma implementations. Cdma network architecture consists of following elements mobile station ms. Cn core network is responsible for transport functions such as switching and routing calls and data, tracking users usim me. The advantage is one core network supporting multiple access technologies. What is the difference between cdma and wcdma networksim. 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. User equipment the 3g system consists of two main parts. Harri holma and antti toskala both work on cutting edge technologies for mobile communications today. 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. As shown in the figure there are three main components in umts network architecture, user equipments is composed of mobile equipment me and usim. Harri holma, principal engineer at nokia siemens networks, finland antti toskala, head of 3gpp radio standardization, nokia siemens networks, finland.

118 23 413 640 92 4 22 1265 963 543 335 1640 1618 208 1132 854 1158 1572 648 112 257 550 1139 176 285 1579 1528 1292 1344 1060 1644 792 923 1478 1250 1086 1359 480 356 1261 1028 578