Cdma 2000 1x architecture and feature computer network. Cdma, like gsm, has seen incremental improvements in. Its no secret that mobile network providers are sunsetting code division multiple access cdma. Wcdma network architecture wcdma including the ran radio access network and the cn core network. Cdma 2000 1x architecture and feature free download as powerpoint presentation. Gsm architecture and subsystems by standard the gsm network is divided into four 4 subsystems 1. At that time, ims was thought to be solely intended for wireless communications.
Easily clear job interviews and college exams after studying. The gsm base station subsystem bss and the wcdma radio access network ran are both connected to the gsm core network for providing a radio connection to the handset. The cdma development group cdg, founded in december 1993, is an international consortium of companies. Gsm network areas the gsm network is made up of geographic areas. The proprietary name for is95 is cdmaone it is a 2g mobile telecommunications standard that uses cdma, a multiple access scheme for digital radio, to send. It is the most secure mode of communication because of its spread spectrum property.
Pdf mobile positioning in cellular networks will provide several services. Contents o cellular communication multiple access method cdma introduction o cdma network architecture o call processing in cdma network 3. Cdma is the present and future of advanced wireless services code division multiple access cdma is a spread spectrum technology used in second and third generation wireless networks cdmaone identifies 2g and 2. The appropriate communication protocols and interfaces are required to warrant economic and ebcient networking. Umts works on wcdma, cdma2000 and tdscdma implementations by 3gpp and 3gpp2. It is used in cellular communication similar to gsm and is a second generation and third generation standard for mobile networks. Pdf architectural design of a code division multiple access. The cdma mobile system architecture wiley online library. Cdma, which stands for code division multiple access, is a competing cell phone service technology to gsm, on 2g and 3g networks that is gradually phasing out. This is a brief tutorial that describes all the technical terms in a simple language to make it understandable for all the interested readers. The hsgw ensures converged mobility and management between the hrpd and lte networks. Multiple users occupying the same band by having different codes is known as cdma code division multiple access system let w spread bandwidth in hz r 1tb date rate s received power of the desired signal in w j received power for undesired signals like multiple access users, multipath. Gsm and cdma are competing wireless technologies with gsm enjoying about an 82% market share globally.
Is interim standard 95 cdmaone network architecture. Pdf the ability to communicate with the people on move has expanded a lot by using cell phones. When deploying a 3g network, it is important to consider the implication on the networks 4g strategy. Gsm and cdma are two dominant technologies in the world of mobile communication. The radio access network changed considerably as a completely new radio interface was used based around the use of cdma. It is assigned to a single user and contains all the functions needed to access umts services. The new mccdma architecture that has a great potential for future mobile. Nikunj goel sde wll alttc ghaziabad 1 brief outline evolution of cdma. Umts network is called a third generation network 3g. Network architecture should not only be able to support vpn, but also to support the public network in internet mode. Wcdma including the ran radio access network and the cn core network. Nov 15, 2019 cdma networks allow for a greater number of users, meaning their capacity for communication is greater than that of gsm networks.
Interim standard 95 is95 was the first ever cdmabased digital cellular technology. Cdma network architecture consists of following elements mobile station ms. As ims evolved, it became clear that the original stated requirements such as voice transcoding, interconnection. Gsm and cdma spectrum frequencies the cdma network operates in the frequency spectrum of cdma 850 mhz and 1900 mhz while the gsm. It works together to lead the growth and evolution of advanced wireless telecommunication systems. At any rate, we recommend you look at the details of when youre guaranteed service through with your network provider. Radio base station ericsson is the world leader in the design of. The base station architecture is based on a universal platform that can support cdma and other cellular standards such as amps and tdma in the same base. Elements like the base station controller, msc, auc, hlr, vlr and the like. It is an alternative to frequencydivision and timedivision multiple access. This type of sim card mobility is analogous to terminal mobility, but provides a personalmobilitylike service within the gsm mobile network refer to chapter 11 for more details. Meet the needs of users with dedicated access line, and also need. Cdmabased mac protocol for wireless ad hoc networks. Sprints better buildings network efficiency strategy.
Earlier cdma technology was used in defense establishments. At first i will center the study in the objectives and main characteristic of this generation. In a cdma network, that includes the ability to support an hrpd serving gateway hsgw for evolved hrpd ehrpd networks. It allows cdma2000 cellular wireless service providers to offer bidirectional packet data services using the internet protocol. Also, know about frequency bands used in 3g networks. Technically gsm global system for mobile communications, originally from groupe special mobile is a specification of an entire wireless network infrastructure, while cdma relates. 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. But the big question on the minds of engineers, manufacturers, and anyone else involved in iot is. Network subsystem ns provides link between cellular network and pstns controls handoffs between cells in different bsss authenticates users and validates accounts enables worldwide roaming of mobile users central element of ns is the mobile switching center msc. Cn core network is responsible for transport functions such as switching and routing calls and data, tracking users usim me. Code division multiple access cdma linkedin slideshare.
Cdma2000 radio access network cdma2000 ran makes it possible to offer advanced mobile multimedia applications between user equipment mobile phones, terminals, personal digital assistants, and laptops and a packet core network linked to internet applications. This architecture is described in 3gpp2 recommendations and tia standards such as is835 and ts115. Cellular network organization use multiple lowpower transmitters 100. The stated plan was to build on an evolved gprs core network and wcdma and edge air interfaces. The network architecture is designed to deliver internet and advanced services seamlessly, and without the need to buildout a new packet network. We first introduce the network architectures and protocols for umts and cdma2000, and then elaborate on the ps service domains mobility management, session management, and iplevel mobility. Complete cdma protocol analysis visit cdma protocol analyzer page mobile switching centervisitors location register to gatewaymsc, service control point, home location register c, e, win interface. Comparison 1g 2g 3g 4g 5g period 1980 1990 1990 2000 2000 2010 2010 2020 2020 2030 bandwidth 150900mhz 900mhz 100mhz 100mhz x bw pr. Incremental progress 1g amps data capabilities 30 khz. In 2010, carriers worldwide switched to lte, a 4g network that supports simultaneous voice and data use. Logically, the cn is divided into the cs circuit switched domain and the ps packet switched. Technologies tdmafdma cdma gsm european standard is 6 u. Umts network is called a third generation network3g.
To much noise will cause interference leading to degraded service or dropped calls. Design of electrical meter reading system based on cdma network. Radio access network core network gsmgprsbased utran ue iu cs uu iur pstn bs rnc msc vlr gmsc hlr iub 3gpp rel. Cdmaone covers larger areas and consumes less power than the other figure describes the cdmaone architecture, with its corresponding interfaces. The additional of packet data with gprs required additional network entities to be added. Cdg is comprised of service providers, infrastructure manufacturers, device vendors, test equipment vendors, application developers, and. There were four main elements to the overall gsm network architecture and these could often be further split. Is95 is widely described as a threelayer stack, where l1 corresponds to the physical phy layer, l2 refers to the media access control mac and linkaccess control lac sublayers, and l3 to the call. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure. February, 28th 2005 overview in this document i make a study of third mobiles generation systems. The gsm network architecture provided a simple and yet effective architecture to provide the services needed for a 2g cellular or mobile communications system. Sep 27, 2019 the cellular mobile service is being used everywhere in the world today. Umts works on wcdma, cdma2000 and tdscdma implementations by 3gpp. The rnc, node b and ms together are called the serving radio network system srns.
In this section we describe the core packet data architecture associated with the cdma radio interface. Tdma time division multiple access and cdma code division multiple access. Developed and maintained by the 3gpp 3rd generation partnership project, umts is a component of the international telecommunications union imt2000 standard set and compares with the cdma2000 standard set for networks based on the competing cdmaone. It was the combination of these two network elements that provided the basis for the 3g umts network architecture. The umts terrestrial radio access network utran consists in bs node the 3g term for bts and radio network controllers rncs connected by atm network. With the help of the cdma wireless technology, the system can acquire a rather low cost of deployment and a great convenience in management. Rium based cdma phones using optical fiber network. The inherent flexibility of this architecture enables sprint to diversify network resources and place them at locations which make the most efficient use of available building and network resources. 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. Cdma tutorial pdf version quick guide resources job search discussion code division multiple access cdma is a channel access method normally used by 3g radio communication technology as well as in some other technologies. Pdf mobile positioning in cdma cellular networks researchgate. Cdma established the foundation for 3g technologies is95 cdmaone initial cdma standard from qualcomm may 1995 mobile 3g evolved into two competing standards both based on cdma cdma2000 uses 1. A cdma network architecture using optimized sectoring article pdf available in ieee transactions on vehicular technology 5. It was developed by qualcomm and later adopted as a standard by the telecommunications industry association in tiaeiais95 release published in 1995.
It involves three main subsystems, each containing functional units and interconnected with the others through a series of standard interfaces. Umts is evolved from gprs to replace the radio access network. A design of the codedivision multiple access cdma cellular system architecture is presented. Transmit voice data via ip over the cdma2000 1x evdo network. Study these interview mcq questions and answers on 3g umts cdma2000 cdma network architecture and interfaces. A 3g mobile network offers good download and upload speeds. Study these interview mcq questions and answers on 3g umts wcdma network architecture and interfaces. Gprs network in 3g is similar to that of the 2g gsm network. Cellular networks khoury college of computer sciences. Wideband code division multiple access, along with umtsfdd, utrafdd, or imt2000 cdma direct spread is an air interface standard found in 3g mobile telecommunications networks. These two technologies differ the way in which the calls and data transfer takes place over a network and mobile. Cdma architecture cell breathing cdma is a noisegenerated technology.
Design of electrical meter reading system based on cdma. Iur can be conveyed over physical direct connection between rncs or via any suitable transport network. The mobile station interacts with the access network to. Cdma is the present and future of advanced wireless services code division multiple access cdma is a spread spectrum. It supports conventional cellular voice, text and mms services, but can also carry data at high speeds, allowing mobile operators to deliver higher bandwidth applications including streaming and. In this section we describe the core packet data architecture associated with the cdma2000 radio interface. Delivering on 3g cdma development group cdma worldwide. We here present a new means of communication for remote meter reading system that takes advantages of the cdma network service. The universal mobile telecommunications system umts is a third generation mobile cellular system for networks based on the gsm standard. The technicality of cdma technology has given significant advantages over other parallel technologies in terms of spectrum efficiency and overall performance. Network architecture based on the dualstack solution. Moreover, cdma is the infrastructure on which all 3g networks are. Network areas the cell is the area given radio coverage by one base transceiver station.
What does the cdma phaseout mean for my companys iot strategy in the longterm. The ms is the mobile subscriber equipment, which can originate and receive calls and communicate with the bts. Easily clear job interviews and college exams after studying these multiple choice. Radio access network architecture wideband cdma systems. The structure of a gsm network relies on several functional entities, which have been specified in terms of functions and interfaces. As shown in figure 3, these areas include cells, location areas las, mscvlr service areas, and public land mobile network plmn areas. Nov 15, 2019 cdmaone covers larger areas and consumes less power than the other figure describes the cdmaone architecture, with its corresponding interfaces. Design of electrical meter reading system based on cdma network yan yang. Pdf architectural design of a code division multiple. No new applications for cdma service are accepted after 7 november 2018. Pdf a cdma network architecture using optimized sectoring. Cdma systems are equipment with a protocol that allows the system to adjust in these situations. The effectiveness of power control determines the capacity of the network. An ms has a number of identities including the international mobile.