McWill SCDMA Wireless Access Technology Computer Science Essay

McWill SCDMA Wireless Access Technology estimator Science EssayMcWiLL is the most advanced broad band radiocommunication antecedent provided by Beijing Xinwei Telecommunications Technology. The engineering science is based on SCDMA, and is known as Multicarrier Wireless information Local Loop (McWiLL). McWiLL combines SCDMAs traditional use in narrow-band interpreter and introduces a mobile broadband information good that ties into an IP-based centerfield net throw. It is based on CS-OFDMA adaptive modulation, and uses dynamic channel allocation and swank antennas to enhance its throughput.SCDMA is a wireless portal code engineering developed by Beijing XinweiTelecom Technology Co., Ltd. The SCDMA air interface is a home(a) wireless find standard in China. The SCDMA products contains a full retinue of advanced wirelesscommunication and networking technologies, such as chic antennas. The diagnose technologies of SCDMA form the foundation of TD-SCDMA, an ITU Standard fo r 3G Wireless Communications. Earlier SCDMA products are narrowband products focus on fixed and mobile voice applications. A new multiplication of SCDMA products are broadband products, Multicarrier Wireless Internet Local Loop (McWiLL), focusing on fixed and mobile voice and high speed entropy application.McWiLL has been deployed in several Chinese cities, including Guangzhou and Qingdao, where its been used for video, voice and info communication. McWiLL successfully served for 2008 Beijing Olympic Regatta, providing the high-definition, real-time mobile video services. Internationally it has been deployed in more than fifteen countries, such as USA, Cameroon, Nigeria, Ukraine, Malawi, and Mozambique.McWiLL is a TDD-based wireless access platform that combines SCDMA (synchronous CDMA), CS-OFDM (code spreading orthogonal frequency division multiple access), MIMO and smart antennas, as well as other wireless techniques such as adaptive modulation (up to QAM64), dynamic channel allocation and make-before-break handoff, to offer a high-speed entropy and voice services. All these features are designed to work with any IP core network and provide up to 15Mbps of entropy rate using 5MHz of spectrum.http//oksunpeng.blogspot.com/In a way, McWiLL tries to incorporate all of todays wireless networking techniques into a single platform which is really possibly why it is approximately impossible for a normal human to understand.McWiLL Base Station supports the fol pitifuling(a) features(a) mount up to 15Mbps net throughput with 5MHz bandwidth(b) Support fixed and mobile, voice and data services(c) Support up to 163dB link budget(d) Support Make-before-Break handoff and L2 delve(e) Support QoS and GoS features(f) Support Over-the-Air upgrade(g) Support down in the mouth power manipulation (150 Watt)(e) Support VLAN, PPPoE and penetration of private networkshttp//oksunpeng.blogspot.com/2009/03/what-is-mcwill.htmlMcWill(Multi-carrier Wireless Information Loc al Loop) is a mobile broadband access frame based on SCDMA technology platform.McWiLL TechnologySmart AntennasDynamic Channel AssignmentCode banquet OFDMA (CS-OFDMA)Time Division Duplex (TDD)Efficient VoIP TechnologyMake-before-Break Baton Handoffadaptive ModulationQoS GoSSecurity Fraud ProtectionMcWiLL System FeaturesMain operateFixed, portable, mobile voice and data communications.Main FeaturesBTS with 5MHz shadower support up to 15Mbps net throughput, each sector can support more than ccc simultaneous sessions, supporting high-speed mobility, handoff and roaming, N=1 frequency planning, and low latency.Product CharacteristicsSupport up to 100KM/H mobile speedTerminals are backward compatibleSupport efficient voice communications and low-bandwidth data.Support N=11 deployment.Products available in the following frequencies336-344MHz, 400-430MHz, 698-746MHz,1785MHz-1805MHz, 2150-2180MHz, 2525-2560MHz, 3300-3400MHzCharacteristics of Chinese outlandish AreasChallenges commence ment subscriber density, large separation of villages, far away from urban areasComplicated environment (mountainous and hilly terrain)Poor facility (backhaul, power supply, etc.) mortified incomeCurrent wireline/wireless communication systems cannot meet these challengesLow ARPULess than $4/month in most areasBusty trade noble traffic especially in Chinese traditional holidaysAsymmetric traffic more than incoming calls than outgoing callsLittle usage of value added services queer Advantages of Deploying McWiLLLarge coverage enables fewer cell sites which are expensive in developing countries, star(p) to much lower Capex and Opex. N=1 deployment enables a wide area network with as little as 5MHz spectrum, leading to much lower upfront investment on spectrum which is usually kinda expensive. Products with a wide range of frequency allow an operator to make out the most cost effective spectrum to operate. Lower destination cost and equal data rates allow an operator to minimize the Opex and lower the entrance barriers for a subscriber. Most McWiLL terminals can support both voice and data services. GSM/McWiLL dual mode handsets/PDAs allow an end user to enjoy 3G beyond performance of McWiLL data and cost effective voice without sacrificing easy access advantages of GSM.Summary of McWiLL AdvantagesLarge coverage (up to 60Km)Smart antenna,400MHz frequency bandLow costAlready large volume, cost effective architecture, SCDMA ASIC chipset, no royal house fees, low RD cost, low manufacture cost, multiple vendors due to SCDMA AllianceHigh capacityBTS capacity 24Mbps/10MHzsupporting up to 8,000 voice subscribersOne system fits allVia flexible configuration, one system can meet the requirements of varied user groups (high-end and low-end), services (voice and data), and time (current and future).Product maturity and reliability10 years RD, large scale deployment, verbiage architecture, long time practicable networks, an experienced team of installation and cu stomer support.Easy to install and nutrimentTerminal zero install, easy-to-use tools for customer self debugging, remote access bickering shooting tools for support personnel.AbstractIn this presentation, we will first try an entering of popularwireless multiplex technologies such as WCDMA and OFDMA and thus presentour McWiLL technology which is an optimal integration of WCDMA and OFDMAtechnologies to in effect address the skilful challenges of wirelessbroadband access, such as capacity, coverage, multipath fading, andintercell interference. In other words, McWiLL effectively avoids themajor drawbacks of WCDMA and OFDMA and draws their advantages of bothtechnologies. Unlike voice centric WCDMA or data centric OFDMA (WiMax),the McWiLL wireless broadband access system can expeditiously combinesboth voice and data applications. Finally, we will provide briefintroduction of McWiLL product roadmap and application.McWiLL Fits Chinese Rural Markets Smart antenna and 400MHz frequency band allows the McWiLL systems to havelarge NLOS coverage (up to 60KM). Multicarrier BTS can support up to 8,000 voice subscribers having sufficiently highcapacity to support bursty traffic in untaught applications. Cost effective architecture and SCDMA ASICs allow the McWiLL products to havesufficiently low cost per line ($60-80 overall cost per line including both terminal andinfrastructure). Zero install of McWiLL terminals and rich tools for self and remote troubleshootingmake it very easy to deploy the McWiLL systems in rural areas. 10 years RD, redundancy architecture and large-scale deployment (2 millionsubscribers) make the McWiLL products mature and reliable enough to deploy inremote rural areas. Integrated voice and data solutions can allow the McWiLL systems to meet bothcurrent and future service requirements of rural customers.My opinionMulticarrier Wireless Internet Local Loop (McWill) is developed by Beijing Xinwei Telecom Technology Co., Ltd. It is a wireless access technology which can cover for the very large area, its coverage can up to 60KM. Therefore it is very suitable for china because it is a monstrous country. Its been used for video, voice and data communication and successfully served for 2008 Beijing Olympic. plane though McWill is very popular but it cannot be use for every country for example, Singapore. Singapore is a small country if using the technology of McWill, there will be a lot of wasted.