The main features provided by wcdma physical layer are. A key feature of wcdma air interface is its ability of transport multiple parallel services with different quality requirement on one connection. Wideband code division multiple access wcdma is the physical layer used for universal terrestrial radio access utra fdd mode. View and download ericsson wcdmahsdpa user manual online. Tems investigation wcdmais an air interface test tool for troubleshooting, verification, optimization, and maintenance of wcdma networks. The wcdma specification has been created in 3gpp the 3 rd generation partnership project. The wtru supports one carrier and one to three sectors. Lucent technologies proprietary 24 physical channels uplink dedicated channels dedicated physical data channel dpdch dedicated physical control channel dpcch common channels physical random access channel prach physical common packet channel pcpch downlink dedicated channel dedicated physical channel dpch common channels common pilot channel cpich primary common. Wcdma was adopted as a standard by the itu under the name imt2000 direct spread.
Synchronization in the mobile standards wsts 20, san jose stefano ruffini, ericsson. The participants should be familiar with the operation of both ericsson wcdma radio and transport networks. Wcdma was specified in the 3gpp release 99 and 4 of the specification, while lte was specified in the 3gpp release 8 and 9. The call was performed in compliance with 3gpp release 15 specifications over the 2. Tems investigation measures parameters, automatically detects wcdma network problems, and decodes air interface messages. The packet scheduling in wcdma is described in detail in chapter 10. The physical layer has interface to both mac and rrc sublayer. Ericsson wcdmahsdpa touch terminals pdf manual download. The training presents functionality related with the. The thesis introduces the wcdma air interface and describes it in terms of the components that were used for the simulations. Wcdma air interface 18 enlzt 123 7279 r4a the next stage is to perform a 1. Sae, system architecture evolution is the core network architecture ofsystem architecture evolution is the core network architecture of 3gpps future lte wireless communication standard. The mobile user objective system muos is a geosatellite communications system derived from the terrestrial cellular wcdma air interface. Wcdma is based on cdma and is the technology used in umts.
Pdf wcdma system standardization, interfaces and power. Umts wcdma is a direct sequence cdma system where user data is multiplied with quasirandom bits derived from wcdma spreading codes. Understanding the wcdma radio interface is essential for engineers dealing with umts radio networks. Utrafdd, or imt2000 cdma direct spread is an air interface wikipedia. View and download sony ericsson w890 troubleshooting manual online. Oct 21, 2012 although wcdma is designed to operate on evolved gsm core networks, it uses code division multiple access cdma for its air interface.
Main unit remote radio units figure 5 mainremote concept rbs 3501. Ericsson assumes no legal responsibility for any error or damage resulting from the. Illustration of 5g air interfaces ais including evolved lte and nr. Since 3g long term evolution lte is launched by 3gpp recently, many multiple. Hspa high speed packet access is a collection of mobile telephony protocols that extend and improve the performance of wcdma. Cellular mobile communication systems may 16, 2006 niclas wiberg, ericsson research. Wcdma and cdma2000 the radio interfaces for future. A knowledge of the structure and usage of the physical channels in the downlink and uplink directions, together with a knowledge of spreading and modulation, provides a good background for understanding how the wcdma radio network works.
In both edgegsmgprs and wcdma air interface mode, the digital baseband controller controls the radio system through a 3wire serial bus. If the ssid broadcast option is enabled, your local wireless devices will find the network name when scanning the air. Wcdma ran w15 protocols and procedures 5 days, lzu1089950. Air interface technologies and performance by farooq khan.
Layer 2 consists of medium access control mac radio link control rlc the broadcast multicast control bmc packet data convergence protocol pdcp 3. Ericsson wcdma hsdpa touch terminals pdf manual download. The control information is only relevant for the ues about to receive the. Difference between wcdma and lte compare the difference. Qualcomm and zte have established 5genabled voice over new radio call. Umts through wcdma can be summarized like a revolution of the air interface accompanied by a revolution in the network of their architecture. In fact, the majority of the 3g systems in operation employ cdma, while the rest use time division multiple access tdma. The term wcdma also refers to one of the itus imt2000 standards, a type of 3g cellular network. Download product flyer is to download pdf in new tab. Sk telecom previously kmt, korea mobile telecom merged with other. This interface is the termination point for the rbs managed resources. Wcdma, radio network controller, handover, troubleshooting.
The use of whole kpi set will give more information on the performance of the wcdma radio network. At the receiver the voice can be resynthesized by combining the output of a. Pdf on dec 1, 2016, caner kilinc and others published new radio 5g user plane. Wcdma for umts radio access for third generation mobile communications. In addition to wcdma, the other air interfaces that can be used to provide third. Test measurement challenges and field environment test planning. Umtstdd is a mobile standard built upon the umts 3g standard, using a tdcdma, tdscdma, or other 3gppapproved, air interface that uses time division duppg lexing tdd. The wcdma air interface was selected for paired frequency bands fdd operation and tdcdma tdd operation for unpaired spectrum. Etsi in europe arib in japan tia and t1p1 in the usa tta in south korea arib and etsi have now harmonized their standards, and their air interface is now commonly referred as. Wcdma system standardization, interfaces and power control. Wcdma for umts radio access for third generation mobile communications third edition edited by harri holma and antti toskala both of nokia, finland. Third edition edited by harri holma and antti toskala both of nokia, finland.
The umts transport network is required to handle high data traffic. Network controller rnc and thus closer to the air interface. The wcdma infrastructure is compatible with gsm mobile radio communication system. Special attention is drawn to those features by which wcdma differs from gsm and is95. Issues and optimization of umts handover diva portal. Enhancing packet data access in wcdma 173 addition, lower layer control information, e. Wcdma technology has emerged as the most widely adopted third generation air interface. Review this text is an especially helpful as an accompaniment to the 3gpp specifications themselves, which offer. The wcdma specification has been created in 3gpp the 3 rd generation partnership project, which is the joint standardization project from europe, japan, korea, the usa and china. Wcdma air interface fundamentals telecommunications radio. Combining of mbms transmissions from multiple cells mbsfn is supported. Discover everything scribd has to offer, including books and audiobooks from major publishers. Pdf wcdma air interface student book lzt 123 7279 r4a.
Wcdma and cdma2000 the radio interfaces for future mobile multimedia communications part idecember 15, 2001 3 in the second part of the report, the main technical approaches to wcdma air interface technology are going to be discussed in detail as it will be mostly focused on physical. Pdf lte 10a air interface munteanu vitalie academia. Basic concepts of hspa february 2007 white paper hspa is a vital part of wcdma evolution and provides improved enduser experience as well as costefficient mobilewireless broadband. Wideband code division multiple access wcdma providing different signaling rate services with multi code modulation scheme and with effective multiplexing of user data is emerging as one of the important air interface for third generation 3g wireless communication systems.
Wcdma network performance optimisation based on analysis of. It supports conventional cellular voice, text and mms services, but can also carry data at high speeds, allowing mobile operators to deliver higher. What is wideband code division multiple access wcdma. This acronym designates protocols for allowing multiple users to the same radio channel. Proprietary a comparative study of umts wcdma and cdma2000 networks neerav dalal award solutions, inc. Evolving 3g, inclusion of basic principles in wcdma. This chapter introduces the principles of the wcdma air interface. An rnc may connect to several rncs through the iur interface. Ericsson radio system is designed to fit all site types and traffic scenarios, even as networks grow in scale and complexity, from 2g, 3g, 4g, and 5g delivering. Jun 19, 2015 wcdma wide band code division multiple access umts before we talk about 4g or gsm. Wcdma and cdma2000 the radio interfaces for future mobile multimedia communications part iiiaugust, 2001 2 7. Pdf wcdma system standardization, interfaces and power control. When the data rates are compared, lte provides massive downlink and uplink speeds than wcdma. Wcdma and cdma2000 the radio interfaces for future mobile.
The uu interface is the wcdma air interface between node b and mobile ues. The iucs, iups, iub, and iur interfaces are implemented on the atm network. Nokia, siemens, ericsson, france telecom, csempro telecom. Unlike wcdma, lte supports variable bandwidth from 1. Download and read free online lte for 4g mobile broadband. Mar 24, 2014 how wcdma uu interface posted on 24 march, 2014 wdma air interface or uu interface contains 3 layers which describe as follow, the wcdma layer 1 supports all functions required for the transmission of bit streams on the physical medium. Wcdma enhanced uplink principles and basic operation. Ericsson assumes no legal responsibility for any error or damage resulting from. Wcdma air interface as well as wcdma the other air interfaces that can be used are edge and cdma2000. Tcp transmission consists of sudden bursts of traffic.
You must know wcdma which stands for wide band code division multiple access. Hspa high speed packet access is a collection of mobile telephony. If the option is disabled, the network name is hidden and has to be manually provided to the wireless devices. Fma2 is a singlecarrier wideband cdma solution using a 4. Wcdma air interface fundamentals free download as powerpoint presentation. Nov 12, 2017 we use your linkedin profile and activity data to personalize ads and to show you more relevant ads. Overview of umts wcdma technology 31 air interface procedures cell search downlink scrambling code and common channel frame synchronization of that cell will be determined during cell search all common physical channel timings are related to the timing of pccpch, so only the timing of pccpch need to be found out. It is also difficult to jam because its energy is spread over so wide a. 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.
Wcdma air interface wcdma air interface course gives the detailed description of the wcdma fdd technology and its use in the umts network. Wideband code division and multiplication access souhaibe barkat. Korean standardization efforts were later moved to 3gpp and 3gpp2 to contribute to wcdma and cdma2000. Lte introduces an enhanced air interface as well as a flat, allip. The iub interface is the l2 to l1 interface between a node b and the rnc.
This is an important feature of 3g system and is not found in 2g system. The wideband codedivision multiple access wcdma standard has been evolved to further improve. Spreading wcdma channels physical layer functions spreading. The tta1 and tta2 air interface proposals later renamed global cdma 1 and 2 were based on synchronous and asynchronous wideband cdma technologies respectively. Uses lte spectrum air interface for backhaul transport self backhauling main usage scenario. Wcdma open loop power control in wcdma attempt to make a rough estimation of path loss by measuring downlink beacon signal problem far too inaccurate fast fading is essentially uncorrelated between uplink and downlink due to large frequency separation of uplink and downlink band of wcdma fdd mode. Upgrading from release 99 wcdma to hsdpa is smooth since from an air interface perspective.
Using a tems scanner wcdma and user equipment ue enhanced by ericsson s tems. Radio access wide band cdma technology was selected to for utran air interface. Lucent technologies unleashing the cdma advantage in wcdma page 2unleashing the cdma advantage in wcdma the air interface selected for umts is wideband code division multiple access wcdma. The wcdma technology provides the umts system some of the new functionalities on the air interface. Lucent technologies proprietary 24 physical channels uplink dedicated channels dedicated physical data channel dpdch dedicated physical control channel dpcch common channels physical random access channel prach physical common packet channel pcpch downlink dedicated channel dedicated physical channel dpch common channels. E ects of phase discontinuity due to power ampli ers on a. Handover between lte and 3g radio access technologies. This is the wcdma radio interface, which is the subject of the main part of this book. The wtru can be installed in any ericsson rbs 2000 macro cabinet. Wcdma air interface course gives the detailed description of the wcdma fdd technology and its use in the umts network. Wcdma air interface error detection and correction. Wcdma is a wideband directsequence code division multiple access dscdma system.
Wcdma power control with the long geosatellite round. The physical layer processing in the rbs is encapsulated between the iub and the uu interfaces. Every rnc is connected to sgsn through the iups interface, and to an msc through the iucs interface. For other wideband cdma proposals it can be written as w zeon pdf driver trialcdma. The same air interface wcdma is to be used in europe and asia including japan and korea using the frequency bands around 2 ghz. Enlzt 123 7279 r4a 11 wcdma air interface 2g circuit switched voice. Lowest layer in this interface is physical layer, phy. April 24, 2001 ece371vv wcdma 5 standardization of 3g various standards bodies are in the process of making standards for imt2000. Australia has worked within the telecommunications industry for 15 years for such major mobile network vendors as ericsson, lucent, nokia, nokia siemens. 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. Within imt2000, several different air interfaces are defined for third generation systems based on either wideband code division multiple access wcdma or tdma technology. Test methodologies must evolve as gsm and wcdma combine with. Wcdma for umts principles u introduction u cdma background history ucode division multiple access cdma u why cdma. Idealy they should have attended the following courses.
Spreading means increasing the bandwidth of the signal. 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. The study was conducted at ericsson ab in gothenburg. This presentation discusses about the wcdma air interface used in 3g. E ects of phase discontinuity due to power ampli ers on a wcdma uplink masters thesis in communication engineering. The training presents functionality related with the use of r99 dedicated channels, as well as, hspa. This solution offers operators a number of significant advantages over alternative technologies. Fixed wireless terminal for wcdmahsdpa mobile networks. Gsm wcdma hspa tdscdma cdma one evdo rev a evolution of mobile. Does not differentiate the usertonetwork interface from the networktonetwork interface unlike bicc and h. Short for wideband cdma codedivision multiple access, a 3g technology that increases data transmission rates in gsm systems by using the cdma air interface instead of tdma.
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