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W-CDMA news and hot articles

2010-02-19 Power amps support multiple W-CDMA bands
Skyworks Solutions Inc. is offering highly-integrated multimode power amplifier modules for next-generation smart phones and data cards requiring multiple W-CDMA bands.
2009-12-29 W-CDMA base stations pack RRE
NTT Docomo Inc. is deploying new W-CDMA base stations equipped with newly-developed remote radio equipment (RRE) units to provide both existing W-CDMA and forthcoming LTE service.
2009-11-24 Qualcomm, MediaTek share CDMA, W-CDMA patents
Qualcomm and MediaTek have made a patent arrangement to share each other's CDMA and W-CDMA IC technology.
2009-09-17 LT5528 W-CDMA ACPR, AltCPR and noise measurements
ACPR (adjacent channel power ratio), AltCPR (alternate channel power ratio) and noise are important performance metrics for digital communication systems that use, for example, W-CDMA modulation.
2009-09-16 RF transceiver targets W-CDMA handsets
Fujitsu Microelectronics is shipping a 3G SAW-less multimode, multiband UMTS/ GPRS/EDGE transceiver.
2009-03-30 Agilent concepts of HSDPA: Bringing increased throughput and efficiency to W-CDMA
This application note discusses the major changes that HSDPA introduces in the W-CDMA physical and transport layers, including new link adaptation techniques and modifications to the structure of the physical channels, modulation and coding.
2009-03-26 Designing and testing 3GPP W-CDMA base transceiver stations
This application note focuses on the PHY (layer 1) aspects of W-CDMA base transceiver stations (BTS).
2009-03-25 Ericsson to supply W-CDMA nets in China
China Unicom has selected Ericsson to supply W-CDMA networks and services for 15 provinces in China. The networks will enable high-speed 3G mobile communications.
2008-07-25 RF tool adds 5.7Mbit/s HSUPA data analysis
Agilent Technologies Inc. has announced a new 5.7Mbit/s HSUPA test capability for its W-CDMA/HSPA Test and Lab Applications, which run on the 8960 (E5515C) Wireless Communications Test Set
2008-07-24 ...Smallest' SAW duplexers, filters work with W-CDMA bands
Fujitsu Media Devices has unveiled what it touts to be smallest SAW duplexers for W-CDMA mobile phones and SAW filters for GSM technology, using a hermetic seal structure
2008-06-02 China's ZTE scores new 3G contract in Europe
Romania mobile operator Zapp has selected ZTE Corp. to roll out a W-CDMA/HSDPA commercial network
2008-05-27 Multicarrier W-CDMA feasibility
The goal of this application note by Brad Brannon and Bill Schofield for Analog Devices is to determine the feasibility of implementing a multicarrier 3G transceiver and what the major subsystem performances must be.
2008-05-15 Qualcomm, AsiaTelco forge 3G CDMA license deal
Qualcomm and AsiaTelco Technologies Holding have entered into a license agreement, under which AsiaTelco is granted rights to develop, manufacture and sell subscriber units and modem cards implementing the CDMA2000, W-CDMA and TD-SCDMA standards
2008-04-28 Power amp suits 3G handsets for W-CDMA network
Anadigics has released the AWT6281 HELP3 W-CDMA linear power amplifier engineered specifically for use in advanced 3G handsets for EGSM (Band 8) UMTS wireless networks
2008-03-31 Nokia Siemens nabs net expansion deal in Indonesia
Nokia Siemens Networks has signed a contract with Hutchison Telecom Indonesia to strengthen the latter's GSM/ W-CDMA network coverage in the islands of Java and Sumatra, and roll out GSM core networks in Kalimantan and Sulawesi
2008-02-21 Mobile spectrum analyzer tests WLAN, WiMAX, W-CDMA
The portable R&S FSL18 spectrum analyzer from Rohde & Schwarz meets the growing need for compact instruments in applications such WiMAX network installation and maintenance.
2007-11-29 Tiny duplexer handles W-CDMA Bands V/VI
EPCOS AG is shipping in production quantities a UMTS duplexer for the W-CDMA bands V/VI, which features a footprint of 2.5mm x 2mm and a flat insertion height of 0.5mm
2007-11-15 Chipsets cut cost of W-CDMA broadband handsets
Qualcomm has introduced new MSM MSM6246 HSDPA and MSM6290 HSUPA chipsets, which the company claims will reduce the cost of W-CDMA mobile broadband handsets
2007-11-01 ZTE claims 'first' W-CDMA commercial femtocell
ZTE claims its ZXWR H8901 product is the world's first W-CDMA commercial Home NodeB, also known as femtocell
2007-10-11 Tiny W-CDMA duplexer extends handset talk time
Optimized for the UMTS Band 1 frequency band, Avago's FBAR-based W-CDMA duplexer improves talk time and handset sensitivity in a miniature 3mm x 2.5mm x 1.2mm package
2007-10-08 Pentaband antenna handles all cellular bands
Pulse has introduced a multihybrid, pentaband internal cellular band antenna that combines 4-band GSM and W-CDMA 2100 to receive and transmit signals in all cellular bands
2007-10-01 Evaluating data transfer in HSDPA/ W-CDMA nets
Testing mobile phones under real HSDPA/ W-CDMA network conditions poses several challenges. A network simulator can serve as a platform for comparing the throughput of different user equipment by providing a stable and reproducible network environment
2007-08-29 Fujitsu unrolls transmitter modules for W-CDMA cellphones
Fujitsu Media Devices has developed the T0311QZ1950 (Band I), T0311QZ0836 (Band V), and T0312QZ1880 (Band II) compact, high-performance transmitter modules for W-CDMA cellphones
2007-08-01 One-box RF tester handles HSPA measurements
Agilent has launched the 7.2/2Mbps HSPA IP data connection and HSUPA RF measurement capabilities for its Wireless Communications Test Set running the Special High Data Rate W-CDMA/HSDPA Lab Application
2007-07-18 China MII releases 3G videophone standard
China's Ministry of Information Industry (MII) has issued an industry standard for 3G videophone services, which involves both TD-SCDMA and W-CDMA
2007-07-16 3G LSI chip combines advanced low-power techs
NEC Electronics' M2 system LSI chip integrates 3G to 3.5G W-CDMA and HSDPA communications technologies with advanced low power technologies optimized for mobile handsets
2007-07-13 Adcore-Tech ships samples of W-CDMA baseband processor
Adcore-Tech has started shipping samples of the W-CDMA baseband processor it was set up to develop
2007-07-10 Adcore-Tech unveils 3.5G W-CDMA mobile tech
Adcore-Tech, a joint venture of NEC, NEC Electronics, Matsushita, Panasonic and Texas Instruments, has succeeded in developing a new W-CDMA 3.5G digital baseband technology
2007-06-28 Dual-baseband phone calls multiple standards
The LG SH-100 is a multitasking handset that can operate on an array of networking standards, including W-CDMA, EGPRS, CDMA2000 1x and 1x EV-DO while featuring a data rate of 1.8Mps
2007-05-14 W-CDMA handsets to drive DSP growth till 2011
Forward Concepts predict that a pickup in the W-CDMA/UMTS handset shipments will drive a 12 percent CAGR in DSP chips till 2011
2007-05-09 Qualcomm, Lenovo Mobile enter W-CDMA license agreement
Qualcomm Inc. and Lenovo Mobile Communications Technology Ltd have entered into a subscriber unit license agreement to cover W-CDMA subscriber products
2007-05-01 Buck converter suits W-CDMA/N-CDMA PAs
Maxim introduced the MAX8805Y/MAX8805Z 600mA, PWM step-down converters in 2-by-2mm WLPs for W-CDMA/N-CDMA power amplifiers
2007-04-23 W-CDMA 2.3GHz VCO using BFR360F and BBY58-02V
The BFR360F is a 14GHz transition-frequency device which takes advantage of the latest manufacturing techniques requiring fewer processing steps than other devices in its class.
2007-03-20 WEDGE transmit modules streamline 3G design
Anadigics has launched a new family of multichip front-end modules that promises to help streamline 3G designs by providing a complete transmit chain for W-CDMA/EDGE mobile handsets
2007-02-21 W-CDMA PA promises 25% more talk time
Leveraging Anadigics' HELP3 technology, the AWT6221 W-CDMA power amplifier reduces average current consumption by 75 percent, which translates to up to 25 percent increase in talk-time
2007-02-19 Broadcom's HEDGE mobile processor targets HSDPA, W-CDMA
Broadcom announced its BCM2153 HEDGE baseband processor for mobile phones operating on HSDPA and W-CDMA networks
2007-02-15 ADI touts 'tightest' integrated 3G transceivers
ADI says its new Othello-3 CMOS RF radio chip is the tightest integrated transceiver for 3G phones using the W-CDMA air interface
2007-02-14 TI offers multicore DSP for wireless apps
Texas Instruments Inc. is introducing a W-CDMA baseband device using use three 1GHz DSP cores, and a gateway processor with six DSPs rated at 500MHz each
2007-02-14 W-CDMA protocol analyzer tests partial designs
Unlike using radio test sets on conformance test systems, the Aeroflex W-CDMA ACE 3G protocol analysis test system supports the early development of protocol test scenarios through its ability to test partial and incomplete designs
2007-02-07 LNAs suit GSM, W-CDMA, WiMAX base stations
Avago's MGA-631P8 and -632P8 LNAs are designed for the receiver chain of GSM, CDMA2000, W-CDMA and WiMAX base station and repeater designs
2006-12-29 CDRS devt platform rolls for W-CDMA, WiMAX
Xilinx and AXIS Network have partnered in the development of a CDRS platform for W-CDMA and WiMAX base stations
2006-12-20 4W power amp rolls for W-CDMA systems
WJ Communications has announced a 4W power amp module for W-CDMA infrastructure systems
2006-11-07 Radio card platform rolls for W-CDMA, WiMAX
Xilinx and AXIS Network Technology have announced the CDRSX, a common digital radio system development platform for W-CDMA and WiMAX base stations
2006-08-22 Skyworks unrolls GaAs attenuators WiMAX, WLAN apps
Skyworks has introduced GaAs attenuators with distortion performance for various types of linear applications including UMTS, W-CDMA, WiMAX and WLAN
2006-07-14 Anadigics PAs deliver performance, reliability to ZTE handset
Anadigics announced that it is supplying indium gallium phosphide heterojunction bipolar transistor power amplifiers to ZTE's F866 W-CDMA handset
2006-06-14 Infineon introduces first BAW filters using WLP tech
Infineon Technologies announced the extension of its Bulk Acoustic Wave filter product portfolio for UMTS/ W-CDMA cell phones at the MTT International Microwave Symposium
2006-04-19 HSDPA chipset improves transmission
Agere Systems developed a receiver technology that aims to improve data connectivity and call quality for mobile handsets operating over HSDPA-capable 3G/ W-CDMA networks
2006-04-10 Solution for 3G, WiMAX base stations suits Freescale RF transistors
TelASIC announced the availability of transmit subsystems for HSDPA/ W-CDMA, EVDO/CDMA2000 and WiMAX base station radios
2006-01-26 Regulator delivers up to 400mA
Linear Technology announced the LTC3444, a synchronous buck-boost regulator, which has been designed for use in 3G W-CDMA cellphone applications
2005-12-30 NJR LNA IC targets W-CDMA cellphones
New Japan Radio's NJG1122 device is a dual band LNA IC designed for W-CDMA cellphones of 2.1GHz and 800MHz band
2005-09-15 Anadigics' W-CDMA PAs extend battery life of mobile handsets
Anadigics Inc. unveiled three new W-CDMA power amplifiers (PAs) that promise industry-leading power efficiency to extend battery life in mobile handsets and W-CDMA-enabled notebook PC cards
2005-09-09 NEC HSDPA base station adopts Altera low-cost solutions
Tokyo-based NEC Corp. will use Altera Corp.'s Cyclone FPGAs and MAX 3000 CPLDs in their 3rd Generation Partnership Project (3GPP) W-CDMA macro base stations that support high-speed downlink packet access (HSDPA
2005-08-01 Cutting RF power in W-CDMA phones
Power dissipation problems in W-CDMA phones can be solved by adjusting power amplifier efficiency and voltage requirements
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