This paper employs a simulation based approach to investigate the endtoend tcp performance over wcdma air interface for ftp traffic using common and dedicated transport channels dch. The mobile air interface has been already optimized for high bit rate packed data and, for this reason, it can be useful for fwaip applications. Every aircraft has at least one radio link to a utran access point node b on the ground. Transition from log file to network topology table. Provide tdmnative ethernet capacity to new and existing gsm wcdma wimax sites. 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. It supports conventional cellular voice, text and mms services, but can also carry data at high speeds, allowing mobile operators to deliver higher. Pdf wcdma air interface student book lzt 123 7279 r4a. Ukecs79783120220 lte l air interface disclaimer this book is a training document and contains simplifications. Ericsson wcdma hsdpa touch terminals pdf manual download. Lte l air interface student book lzt80912 r1a lzt80912 r1a rwce. 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.
Analysed sectorcable swap, overshooting neighbors, uldl throughput, rsrp, rsrq and sinr based on statistics and drivetest log files project overview. This is achieved by introducing a new mac medium access control entity, mace, in the node b, an approach similar to the one taken for hsdpa. In this article, the authors discuss ways of evolving the ericsson family of wcdma products. Indexterms wcdma, hospot areas, adaptive beamforming, monte carlo simulations. Pdf wcdma system standardization, interfaces and power control. However, about ip over umts many issues are still open up to now.
Pkzip, used to compress files in the computer industry uses a 32bit. One of the main air interface for 3g system is referred as wide band cdma wcdma. Uplink, downlink in the same frequency band and separated in time. Zahra sheikh technical support engineer hmd global. Unlike older systems 3g offers variety of services such as web browsing, email, video calls and multimedia. For third generation mobile system imt2000 wcdma technology will be used. Setup and status of the umts es experimental system in. Additional air interface requirements for phase and time synchronization.
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. Radio network tuning and optimization for wcdma presentation 115 ericsson internal phones and ues scanners pc cards and usb modems fixed wireless terminals aqm module inbuilding positioning gps receivers cell definition files logfiles tems investigation data collection sources of data. Swap and modernisation of 1200 bts sites with ericsson rbs6000 technology to launch 3glte services in mtns network and upgrade transport network to ipran. Wideband codedivision multiple access wcdma is a radio technology of. Therefore, it must not be considered as a specification of the system. Model for tcp we assume that each file transfer opens a new tcp connection.
Using a tems scanner wcdma and user equipment ue enhanced by ericsson s tems. Umts uses wideband code division multiple access wcdma as its radio air interface. Prerequisites a basic understanding of gsm architecture and procedures would be an. Download wcdma book pdf epub mobi tuebl and read online books. Enlzt 123 7279 r4a 11 wcdma air interface 2g circuit switched voice circuit. This paper describes a wideband code division multiple access test system developed by nokia.
Special attention is drawn to those features by which wcdma differs from gsm and is95. View adnan aftabs profile on linkedin, the worlds largest professional community. Uvm based verification of 3gpp chip rate processing unit. 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. Air interface you have reported the following handset model summary information. Layer 2 consists of medium access control mac radio link control rlc the broadcast multicast control bmc packet data convergence protocol pdcp 3. Comparison of frequency domain equalizers to time domain. Cellular mobile communication systems may 16, 2006 niclas wiberg, ericsson research. The term wcdma also refers to one of the itus imt2000 standards, a type of 3g cellular network. Here the first umts networks incorporating wcdma as air interface are specified. Ossrc 3g ericsson telecommunications information and. Pkzip, used to compress files in the computer industry uses a 32. Hspa high speed packet access is a collection of mobile telephony.
Tdcdma, tdscdma, or other 3gppapproved, air interface that uses. It is one of the air interface used with umts mobile communication standard which allows communication between ue and node b. Introduction the adoption of the wcdma air interface as the physical layer protocol for third generation 3g mobile networks led to higher transmission rates and more efficient spectrum utilization compared to second generation mobile networks. Wcdma and lte synchronization aspects chronos technology. The bts shall use a single frequency source of absolute accuracy better than 0. Wcdma based system all users share the same frequency time domain. Wideband codedivision multiple access wcdma systems are designed to be serviceindependent, in order to accommo. Supports both packetswitched and circuitswitched data services. The study was conducted at ericsson ab in gothenburg. Scalable ofdmbased 5g nr air interface 3gpp rel15 specifications aligned with qualcomm research whitepaper published nov 2015 link qualcomm research is a division of qualcomm technologies, inc. Simulations show that in a moderately loaded system, hspa can reduce the time it takes to download large files by a factor of 20 and to upload large files by a factor of 10. Umts, improving the load balancing and coverage footprint. It is developed by the 3g partnership program, which is composed of evolved core cellular networks that belong to the global system for mobile gsm communications networks worldwide.
Wcdma mobility troubleshooting studies and enhancements core. Wcdma 3g air interface physical layer testing using labview. In some cases, you have to make sure that your pc belongs to the same workgroup as the ericsson w20. Techopedia explains wideband code division multiple access wcdma the wcdma system is part of the umts.
Pdf analyzing wcdma call flow using tems wcdma l3 messages. The implementation of wcdma is a technical challenge because of its complexity and versatility. 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. The main advantage of this is its flexibility in resource management. Wcdma, radio network controller, handover, troubleshooting.
Endtoend latency which is the average time it takes for a small ip packet to travel from a ue user equipment through the hsdpa system to an internet server and. The same source shall be used for all carriers of the bts. Ericsson assumes no legal responsibility for any error or damage resulting from the. Special focus will be on dual mode gsm and wcdma cellular phones with four gsm and three wcdma bands. Mar 16, 2015 the wcdma ran consist of the following main parts.
Omid farzan expert rf optimization engineer nokia linkedin. Then we model the rest of the path in a simplified way. The physical layer has interface to both mac and rrc sublayer. However, wcdma air interface is specifically designed with envision to support real time multimedia services.
Wcdma can be viewed as a successor of the 2g cdma system. Lowest layer in this interface is physical layer, phy. Each transport channel has an associated transport format indicator tfi and the in. Upgrades the radio network with dataoptimized air interface protocols full flexibility. What is wideband code division multiple access wcdma. This is the hardware that is connected to the mobile phone network that communicates directly with mobile handsets. Below table shows some of the key parameters of wcdma air interface. Insights about real wcdma systems were used in order to implement a realistic simulator. Matlab was used as the main simulation platform for all the com.
Wcdma enhanced uplink principles and basic operation. Analyzing wcdma call flow using tems wcdma l3 messages log files analysis objectives understand the functions of tems investigation for l3 messages analysis in wcdma. In contrast with gsm base stations, node b uses wcdma tdscdma as the air interface technology. Billions of dollars have been spent procuring these air. E ects of phase discontinuity due to power ampli ers on a. Each element and air interface of the utran is briefly. Explain how amosemcli handle fault management and log files. Download wcdma book pdf epub mobi tuebl and read online. Feasibility study of a wcdma direct airtoground link in the. Wcdma air interface error detection and correction.
Industryleading air interface test tool intelligent user interface. Tems investigation measures parameters, automatically detects wcdma network problems, and decodes air interface messages. The mace is responsible for scheduling and hybrid arq. Such as weighted overlap add wola utilized in lte systems today. Pdf wcdma system standardization, interfaces and power. 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. Because packet data is expected to have an increasingly important role, the scope of this article is mostly limited to packet data.
Wcdma air interface free download as powerpoint presentation. Endtoend latency which is the average time it takes for a small ip packet to travel. 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. 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. It is characterized by using a radio interface based on. In addition to wcdma, the other air interfaces that can be used to provide third generation services. For other wideband cdma proposals it can be written as w zeon pdf driver trialcdma. 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. Pdf congestion control in wcdma with respect to different. See the complete profile on linkedin and discover adnans connections and jobs at similar companies. Unlike 3, our simulator incorporates the impact of core network and internet to endtoend tcp performance. Wcdma air interface ms wbts 1 ms ms wos ws wos wos wos ws ws ws gps dgps ws wos ws wos wos gps wos ws wos wos file server gps dgps gps dgps iwf ericsson gsm msc tmobil mannesmann mobilfunk ericsson tmobil mannesmann mobilfunk internet router external interfaces external interfaces hub 10baset100baset router hub 10 base t firewall router. Uplink, downlink in separate frequency bands tdd time division duplex. This chapter introduces the principles of the wcdma air interface.
Highly regarded as the book on the air interface of 3g cellular systems wcdma for umts has again been fully revised and updated. The air interface is designed in a way that allows advanced cdma receiver concepts. Sony ericsson s500 sony ericsson handset model name fcc id s500 py7a1052041 air interfacesfrequency bands 850 mhz gsm 900 mhz gsm 1800 mhz gsm. Network part the air interface adopts the wcdma technologies with the signal bandwidth of 5 mhz and the chip rate of 3. 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 in the universal mobile telecommunications system umts the radio. The actual transfer process consists of two periods. Wcdma wideband code division multiple access, umtsfdd, utrafdd, or imt2000 cdma direct spread is an air interface standard found in 3g mobile telecommunications networks.
The contents of this document are subject to revision without notice due to ongoing progress in. In fact, many wcdma technologies can be traced back to the 2g cdma system. Radio network tuning and optimization for wcdma presentation 115 ericsson internal phones and ues scanners pc cards and usb modems fixed wireless terminals aqm module inbuilding positioning gps receivers cell definition files logfiles tems investigation data collection sources of. Provides complete interfaces to network infrastructure, including ericsson s ossrc for gsm and wcdma networks and rnm for cdma systems designed to meet any requirements regardles of network size. Wcdma air interface ms wbts 1 ms ms wos ws wos wos wos ws ws ws gps dgps ws wos ws wos wos gps wos ws wos wos file server gps dgps gps dgps iwf ericsson gsm msc tmobil mannesmann mobilfunk ericsson tmobil mannesmann mobilfunk internet router external interfaces external. 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. Evolving wcdma for improved high speed mobile internet stefan. Capacity management and load balancing for 3g wireless access. In this thesis, an equalizer based on fast fourier transforming fft the input signal, cancelling the propagation channel in frequency domain, and finally reverting to time domain using an ifft would be devised for wcdma. Describe the interfaces in radio access network architecture.
Address wireless lan settings siting the wireless pc installing the wireless lan interface configuring pc access to the ericsson w20 file and printer sharing settings accessing a shared device checking. An adaptive beamshaping strategy for wcdma multicellular. Evolving wcdma for improved high speed mobile internet. Know call flows analysis for wcdma moc, mtc, pdp context activation, handover. The majority of these will be served by wcdmahspa and lte. The thesis introduces the wcdma air interface and describes it in terms of the components that were used for the simulations. Page 8 tems introduction tems investigation is an air interface test tool for cellular networks, supporting all of the following technologies. As in all cellular systems, such as umts and gsm, the node b contains radio frequency transmitters and the receivers used to communicate directly with mobile devices. Wideband code division multiple access wcdma is air interface standard adopted for 3g in europe, asia and africa. Lte l air interface student book lzt80912 r1a lzt80912. Sync requirements mainly related to the frequency accuracy on the air interface etsi ts 145 010, radio subsystem synchronization. Tems investigation wcdmais an air interface test tool for troubleshooting, verification, optimization, and maintenance of wcdma networks.
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