The 5g air interface framework is built upon two major concepts. Gsm europe and large parts of the world, cdmaone americas, damps americas, and pdc japan. Wireless broadband services at reliable high speed the ericsson w20 uses wcdma hsdpa radio access to provide high speed data capabilities to the local network. Spreading wcdma channels physical layer functions spreading. It can satisfy all the requirements listed by the itu to provide very effective highspeed data services and high quality voice and image services. Lte and wcdma air interface capacity analysis, uplink interference, new sites and carrier expansions. Because packet data is expected to have an increasingly important role, the scope of this article is mostly limited to packet data. In addition, the baseband boards in a radio base station perform the following functions. Ase air speech equivalent ase is a virtual capacity resource of air interface in wcdma network. The training focuses on physical layer operation and procedures and other functions closely related with the physical layer. In terms of air interface, it should be optimized in the way to support versatile application scenarios. In this article, the authors discuss ways of evolving the ericsson family of wcdma products. Asynchronous wideband cdma is not only considered in europe but also in korea and in japan for imt2000 air interface 9. Wcdma test automation workflow analysis and implementation.
In order to validate the performance of wideband air interface solutions, testbeds were developed within european companies 8. Wcdma air interface fundamentals telecommunications radio. The term wcdma also refers to one of the itus imt2000 standards, a type of 3g cellular network. Ericsson and qualcomm reached a series of agreements on the ipr and this act cleared way the obstacles from intellectual property rights for promoting a global cdma standard. Effective power control is essential in wcdma due to frequency reuse 1 open loop power control for initial power setting of the ms across the air interface. Uplink, downlink in separate frequency bands tdd time division duplex. Analysis of nodes software issues, nodes point of contact between remote teams and local customer. Ericsson confidential 11 20060502 d e s p r e a d i n g. Standards institute as candidates for umts air interface and itu imt2000 submission. Air interface fully hearing aid compatible number percent acoustic coupling compatible only number percent noncompliant handsets number percent total by air interface you have reported the following handset model summary information. More specifically, wcdma is a third generation wide area cellular communication technology. E ects of phase discontinuity due to power ampli ers on a.
Attempts were made to unify wcdma 3gpp and cdma1x 3gpp2 standards in order to provide a single framework. Testing and verification of baseband digital unit wcdma hardwaresoftware using test cases developed in labview wcdma 3g air interface physical layer testing using labview agile methodologykanban. This is a brochure subheadline on two rows extracted version new. Layer 2 consists of medium access control mac radio link control rlc the broadcast multicast control bmc packet data convergence protocol pdcp 3. It is a measure of how much of user of this service load the air interface. Lte l air interface student book lzt80912 r1a lzt80912 r1a rwce. Monica archilletti core engineering linkem linkedin. Wcdma air interface error detection and correction. Evolving wcdma for improved high speed mobile internet stefan. Pdf wcdma system standardization, interfaces and power. Hspa high speed packet access is a collection of mobile telephony. Wcdma is the most widely adopted air interface standard for third generation 3g mobile networks. Wcdma lte radio protocols and functionalities wcdma lte air interface wranlran radio procedures son good knowledge of temsnemo tools for ue tracing atm, tcpip protocols unix access transport network and pran wranlran troubleshooting kpi monitoring main projects and activities covered.
Below table shows some of the key parameters of w cdma air interface. As ntt docomo did not wait for the finalisation of the 3g release 99 specification. Additional air interface requirements for phase and time synchronization. Power for this option is provided via the rrus ret interface. W cdma wideband code division multiple access, umtsfdd, utrafdd, or imt2000 cdma direct spread is an air interface standard found in 3g mobile telecommunications networks. 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. Fabio donadio validation technical leader ericsson linkedin.
Download wcdma book pdf epub mobi tuebl and read online books. Evolving wcdma for improved high speed mobile internet. Uplink, downlink in the same frequency band and separated in time. Ericsson confidential 15 20060502 wcdma downlink fdd rel. The physical layer has interface to both mac and rrc sublayer. It is the basis of japans ntt docomos foma service and the mostcommonly used member of the umts family and sometimes used as a synonym for umts. As the change of the air interface is revolutionary, so is the evolution of the radio access network part. Wcdma air interface 4 ericsson ab 2004 lzt 123 7279 r4a multipath fading 65 the. View and download ericsson wcdmahsdpa user manual online. Insights about real wcdma systems were used in order to implement a realistic simulator. Wideband codedivision multiple access wcdma systems are designed to be serviceindependent, in order to accommo. Nokia and ericsson are also involved in ntt docomo wcdma trial network development in japan. In the process of evolution from gsm to wcdma, only the core network part is smoothly evolved. The contents of this document are subject to revision without notice due to ongoing progress in.
Wcdma automation workflow analysis and implementation chapter 1. Wcdma was selected as the air interface for umts, the 3g data part of gsm. The tta1 and tta2 air interface proposals later renamed global cdma 1 and 2 were based on synchronous and asynchronous wideband cdma technologies respectively. Download wcdma book pdf epub mobi tuebl and read online.
Korean standardization efforts were later moved to 3gpp and 3gpp2 to contribute to wcdma and cdma2000. Wcdma air interface fundamentals free download as powerpoint presentation. The chapter also discusses other key elements of the wcdma air interface such as power control and soft and softer handovers. The rrus 32a b66a is a synthesized transceiver designed for use in the 3gpp third generation partnership project for umts 3g universal mobile telephone system, lte long term evolution, and wcdma wideband code division multiple access. Network part the air interface adopts the wcdma technologies with the signal bandwidth of 5 mhz and the chip rate of 3. Tems investigation measures parameters, automatically detects wcdma network problems, and decodes air interface messages. Second level support for csfallback configuration for h3g operator. Matlab was used as the main simulation platform for all the com. Later, wcdma was selected as an air interface for umts. The thesis introduces the wcdma air interface and describes it in terms of the components that were used for the simulations. It is one of the air interface used with umts mobile communication standard which allows communication between ue and node b. Using a tems scanner wcdma and user equipment ue enhanced by ericsson s tems. Enlzt 123 7279 r4a 11 wcdma air interface 2g circuit switched voice. Tems investigation wcdmais an air interface test tool for troubleshooting, verification, optimization, and maintenance of wcdma networks.
For other wideband cdma proposals it can be written as w zeon pdf driver trialcdma. Orthogonal frequency division multiplexing is a modulation technique for transmission over a frequencyselective channel. The air interface is now commonly referred as wcdma. Air interface you have reported the following handset model summary information. Igor malianov ukraine professional profile linkedin. Ukecs79783120220 lte l air interface disclaimer this book is a training document and contains simplifications. In addition to wcdma, the other air interfaces that can be used to provide third. Wcdma air interface ericsson rome wcdma umts overview ericsson dublin. Ericsson assumes no legal responsibility for any error or damage resulting from. Rbs is connected to rnc via the iub interface and to user. A comparative study of umts wcdma and cdma2000 networks. Special focus will be on dual mode gsm and wcdma cellular phones with four gsm and three wcdma bands. Wcdma based system all users share the same frequency time domain. After submission and presentation during 1996 and early 1997, proposals for the umts terrestrial radio access utra air interface were grouped into five concept groups in etsi in june 1997.
In order to satisfy these future demands, the wcdma air interface is improved in release five r5 of the 3gpp specifications, which is to be finalized early 2002. One of the main air interface for 3g system is referred as wide band cdma wcdma. Wcdma air interface, ericsson training centre, moscow. Radio test report radiated emissions rrus 32a b66a. Therefore, it must not be considered as a specification of the system. Pdf basic principles of wcdma system wcdma system overview. Ericsson confidential 8 20060502 separate users through different codes large bandwidth continuous transmission and reception f code t ms 1 ms 2 ms 3 5 mhz wcdma 5 mhz is95 1. Ericsson wcdma p6 hspa system techniques, ericsson education center sweden, stockholm. Sony ericsson s500 sony ericsson handset model name fcc id s500 py7a1052041 air interfacesfrequency bands 850 mhz gsm 900 mhz gsm 1800 mhz gsm. Cellular mobile communication systems may 16, 2006 niclas wiberg, ericsson research. 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.
Pdf wcdma system standardization, interfaces and power control. Wcdma air interface course gives the detailed description of the wcdma fdd technology and its use in the umts network. Fixed wireless terminal for wcdma hsdpa mobile networks. Spreading means increasing the bandwidth of the signal. Cdma air interface proposals including wcdma in europe and japan, cdma2000 in the. It describes the need for power control and its implementation and. Pdf wcdma air interface student book lzt 123 7279 r4a. 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. It is also difficult to jam because its energy is spread over so wide a. Ericsson incubator wcdma air interface unix essentials tems application radio network design cello platforms rbs 3202, 3101, 3206, 3106, 3107, 3018, 3412, 6000 rnc 3810 rxi 820.
Etsi specifications for wcdma air interface suggest five actions to be taken respectively in the presence of congestion ericsson 2001, dahlman 1998, that is five actions to cope with link degradation. Qosaware power control and handoff prioritization in 3g. Ericsson has for a long time played a very active role in both itu and 3gpp and is a major contributor to wcdma and the fulfillment of the vision of a global mobile telecommunication system. Lte l air interface student book lzt80912 r1a lzt80912. The training presents functionality related with the use of r99 dedicated channels, as well as, hspa. In terms of radio access virtualization, it encompasses self. Lowest layer in this interface is physical layer, phy. Wideband codedivision multiple access, along with umtsfdd, utrafdd, or imt2000 cdma direct spread is an air interface standard found in 3g mobile telecommunications networks. Pdf architecture of the radio base station alex bar. Ericsson s ossrc for gsm and wcdma networks and rnm for cdma systems designed to meet any requirements regardles of network size analysis calculation and handling for large networks is optimized to secure good usability 22 tems making wireless better ericssonyyz wcdma traffic data input traffic demands in millierlangs for.
Wcdma air interface fundamentals telecommunications. The main advances of 3g systems compared with 2g systems are ht04. Radio network proposal tool rnpt ericsson for wcdma ran design. Wideband cdma wcdma wideband tdma wtdma tdmacdma ofdma odma. Summary air interface backward compatible wis95 gsm umts handover interoperability peak data rate 2 mbps 614 kbps asynchronous 3.
Integration, test, troubleshooting and rollout for ericsson epg on juniper m120 node for wind operator. Wcdma developed by ntt docomo as air interface for 3g foma freedom of. It supports conventional cellular voice, text and mms services, but can also carry data at high speeds, allowing mobile operators to deliver higher. Product overview the ericsson w20 fwt is an advanced small office and home router with wireless internet access.
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