PAS/iPAS無線接入系統

　　UT斯達康公司的PAS/iPAS無線市話解決方案為電信運營商開展新業務、增加營運收入，更為有效地為眾多電信消費者服務創造了良好條件。

　　PAS/iPAS無線市話系統是固定電話的補充及延伸，是新一代無線通信方式。它將固定電話網路的傳輸交換與無線接入技術有機結合，以固定電話網路為基礎，以無線接入方式在本地網或本地網內局部地區範圍內提供無線語音、數據及多種增值服務。

PAS/iPAS系統的特點和優勢：

 　　 大容量的無線系統，能滿足人口密集區大話務量要求；
 　　 新一代iPAS系統的核心網採用IP軟交換技術，已經成功地融合到UT斯達康公司的下一代網路系統中；
  　　利用現有資源，建設週期短；
  　　系統成本低，投資回收快；
 　　 動態頻率分配，無需複雜的網路規劃，系統擴容簡單；
 　　 話音品質高，採用32K ADPCM編碼方式，音質可與固定電話媲美；
 　　 基站和手機輻射低，健康環保，可長時間通話；
  　　具有強大的數據業務功能（高達64Kbps無線數據傳輸速度），讓消費者通過PAS手機終端可以享受到拇指短信、拇指郵件、拇指資訊、拇指定位、無線上網等多種豐富多彩的無線增值業務。

　　UT斯達康在不斷提高PAS/iPAS無線市話系統性能的同時，也致力開發和提供更多種類的手機終端，並提供多種形式的增值業務，為消費者提供更為多樣的選擇豐富的服務。並且，在滿足目前業務需求的同時，UT斯達康的iPAS系統已經採用了IP軟交換技術的核心網路，支援向下一代網路技術和業務的過渡，更大程度保護現有投資。

mSwitch軟交換系統

　　UT斯達康公司是全球最早進行軟交換研究的公司之一，其mSwitch軟交換系統是基於IP，面向語音、數據、移動和多媒體的多業務交換系統。它為運營商提供了一個靈活多樣、低成本、高效率的網路，包括統一的業務平臺、統一的網路管理系統，並能夠在接入層提供豐富的語音、數據、視頻、VOIP、Internet接入以及多種寬頻業務，為運營商提供了全面、有效、經濟的解決方案。由於mSwitch軟交換系統是基於IP包交換設計，並且具有先進的體系架構，因而能夠為傳統電路交換網路向下一代網路的演進提供現實、完整和平滑的過渡方案。

　　目前該系統已經獲得資訊産業部軟交換入網許可，並正在部分城市進行商業網路試運作。其中基於軟交換架構的iPAS系統已經得到了大規模的商用，位列世界商用軟交換系統市場份額第一。

寬頻接入系統

　　 UT斯達康的寬頻接入系統提供綜合的接入方式，滿足不同市場的需求。UT斯達康是在中國最早推出V5接入系統的公司之一，其AN2000接入網系統在中國的接入網中取得了大規模應用，為公司取得了良好的聲譽。

　　目前，UT斯達康純IP內核的ADSL DSLAM設備銷量名列2002年全球第二，産品廣泛應用於美國、日本、歐洲等國際市場。此外，公司針對城域網接入市場推出了完整的基於IP的解決方案，提供從IP骨幹網、城域網、接入網的端到端解決方案。主要産品有：AN2000B系列寬頻接入系統，NetEdge系列接入層交換機．iAN系列IP寬頻綜合接入平臺，豐富的WLAN系列無線接入網産品，並可以和小靈通用戶捆綁提供無所不在的數據業務．豐富的CPE用戶端産品系列，還有非常有特色的多媒體用戶端設備TrioBox、QBox,其中TrioBox在日本YahooBB網路中得到成功的應用。UT斯達康提供的寬頻接入産品可以提供豐富的接入方式，如POTS、BRI、PRI、V5、E1、ADSL、VDSL、EDSL、G.SHDSL、10/100MEthernet、FTTH等多種接入技術。

　　UT斯達康提供的寬頻接入系列産品既實現了窄帶向寬頻的平滑過渡，保護已有投資，又保證網路將來的擴充和升級．並且方便運營商開展各種增值業務。目前各類産品已經被國際多家運營商大量應用，其高性能、迅速靈活的組網能力，以及可運營、可管理性模式，得到了廣大用戶的充分認可。

　　UT斯達康豐富的寬頻接入系列産品結合UT斯達康公司的mSwitch軟交換平臺，可以為運營商提供端到端的解決方案。實現綜合語音、視頻、數據、無線接入的真正的多媒體通信。
 
第三代行動通訊端到端解決方案

　　作為全球WCDMA行動通訊系統的積極推動者，UT斯達康公司成功開發研製了全套WCDMA商用系統MovingMedia8000.UT斯達康可以提供端到端的3G行動通訊系統解決方案，嚴格遵循3GPP的體系結構及各項標準與規範，並在方案中增強與其他廠商設備的相容性。UT斯達康公司在3G開發之初，就利用先進的IP技術實現了UMTS所要求的核心網．並採用統一的硬體與軟體平臺和具有QoS保障的線速IP交換機，因而可以方便引入新業務，提高組網的靈活性，可充分利用運營商IP骨幹網路資源，降低運營商3G建網成本。UT斯達康的3G系統設備解決方案可以提供滿足不同應用環境的W—CDMA基站，其核心網還支援TD—SCDMA和GSM與GPRS無線技術，並提供MSC，GSN HLR、OMC、NMS等等。

　　 UT斯達康公司在“ 2001年中國國際通信設備技術展覽會”上首次推出了第三代行動通訊産品，現場開通了WCDMA網路，提供WCDMA端到端解決方案，向公眾展示了3G話音、圖像、數據業務，其高速率、多媒體的特性．讓觀眾實實在在地體會到了3G網路的優越性。
 
新一代光網路解決方案

　　UT斯達康公司憑藉多年提供多種電信解決方案的經驗和對電信發展趨勢的準確把握，針對城域網的業務特點，採用創新的體系結構和先進的晶片技術，成功開發了基於SDH的第三代MSTP多業務光傳輸産品NetRing系列，涵蓋了從STM-1、STM-4、STM-16到STM-64的所有産品。NetRing在實現強大的TDM、IP和ATM等多業務傳輸能力的同時。極大提高了設備整合度，具有很好的性能價格比，能為城域傳送網建設的三個層面，即核心層、匯聚層和接入層提供完整解決方案。

Wireless Access Solution

UTStarcom's PAS/iPAS Wireless Access provides telecom operators with an excellent opportunity to develop new services and increase revenues by extending service to a new customer category-wireless subscribers.

PAS/iPAS seamlessly integrates with an operator's existing wireline network by combining the transmission and switching technologies of the wireline network with UTStarcom's wireless access technology.PAS/iPAS provides city-wide,wireless,voice,date and value-added service.

PAS/iPAS has the following characteristics and advantages:
  High capacity wireless system suitable for densely populated areas
  Enables smooth migration to nest generation networks
  Seamless integration into existed network allows a short construction cycle
  Low system cost and quick return on investment
  Dynamic frequency allocation and easy capacity expansion
  High voice quality,comparable to that of fixed telephony,with 32k ADPCM encoding used
  Low radiation power from the base station and the handset,to ensure health of the user for long call duration
  Fast Data transmission up to 64kbps supports value-added services
  Creates new sources of income with value-added services

While continuing to improve the performance of its PAS/iPAS wireless systems,UTStarcom is also committed to developing and offering more handsets and value-added services to meet the diversified needs of customers.Additionally,besides satisfying the current business demand,UTStarcom's iPAS solution has already adopted IP-based softswitch technology in the core netowrk to support smooth migration to the next generation network technology and service and better protect existing investment.

Wireless,Broadband and IP-New ideas New communications

IP Softswitch

As a leading innovator of softswitch technology,UTStarcom developed its IP-based softswitch platform,mSwitch,as an integrated solution capable of handing various services such as voice,data and multimedia.It provides operators with a flexible cost-efficient network,consisting of a centralized service platform and a network management system.The softswitch architecture of mSwitch,offers on the access layer voice,data,VOIP,internet access and various broadband services.It also integrates various functions such as switching,access,network management and maintenance,providing operators with an overall,effective and economical MAN solution.Since softswitch is based on packet switching,it furnishes a realistic,complete and smooth migration strategy for the evolution of the traditional circuit-switched network to a next generation network.

Currently,this system has involved several tests conducted by the MLL authority and major operators,and used in a trial operations over commercial networks.The iPAS system,which is based on mSwitch softswitch functionality has already found wide commercial applications.

Broadband Access Solution

The broadband access solution offered by UTStarcom meets a variety of market demands by providing an integrated access platform.UTStarcom is one of the world's first companies to introduce V5 access technology in China accesss networks.

So far,UTStarcom is ranked the secong largest provider of IP-based ADSL DSLAM equipment worldwide.The company has rolled out a complete IP-based solution targeted at MAN access market offering an end-to-end solution fou IP backbones,MANs and other access network.Major products include AN2000B series broadband access system,NetEdge series access layer switch,iAN series IP-based broadband integrated access platform,the WLAN product portfolio which can be bundled with PAS,varied CPE user end products,and multi-media user end equipment TrioBox and Qbox.TrioBox was successfully deployed in Yahoo BB networks.these broadband access products provide a variety of access technologies such as POTS,BRL,E1,ADSL,VDSL,EDSL,G.SHDSL,10/100M Ethernet and FTTH.

The broadband access products of UTStsrcom not only enable smooth migration from narrowband to broadband and protect existing investment,but also allow for future expansion and rpgrade and the convenient deloyment of various value-added services.So far,these products have been widely adopted by a number of international operators and their excellent performance,fast and flexible networking capability and operable and manageable mode have been fully recognized by the large number of customers.

End-to-end 3G Solutions

UTStarcom offers end-to-end solutions for the 3G mobile communications system,stringently complying with the 3GPP architecture,standards and specifications and interoperability with other vendors.In the early stage of 3G development,UTStarcom adopted advanced IP technology to implement the core network required by UMTS.It also used the unified HW and SW platform and the line speed IP switch with QoS assurance.In this way operators can rapidly introduce new services,increase network flexibility,maximize unused bandwidth and lower the cost of the 3G network.UTStarcom's 3G solutions can provide W-CDMA base stations in different application environments.The core network also supports TD-SCDMA,GSM and GPRS technologies and provides MSCs,GSNs,OMCs and NMSs.

UTStarcom's end-to-end 3G W-CDMA solution made its debut at PT/WIRELESS NETWORKS COMM 2001 in Beijing,Oct.2001.The company gave the visitors an opportunity to actually experience the advantages of the 3G network by demonstrating the performance of 3G　voice,image,data and high-speed multimedia services.

New Generation Optical Network Solution

Leveraging on its long-time experience of telecom solution provision and precise identification of telecom development trend,UTStarcom has adopted innovative architecture and advanced chip technology,successfully developed the NetRing series SDH-base MSTP optical transmission products that address the business characteristics of MAN.The NetRing series cover all products from STM-1,STM-4,STM-16 to STM-64.While offering strong multi-service transmission capability such as TDM,IP and ATM,NetRing greatly improves the equipment integration and offers extraordinary cost/performance ratio,and is able to provide a complete solution for the three laters of MAN construction,namely the core layer,the convergence layer and the access layer.