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WIRELESS BASESTATIONS: Overview
Cellular communication systems have gone through a few generations of development. The latest technology migration was from 2.5G to 3G networks, enabling info-entertainment and other multimedia applications. Beyond 3G, new standards such as high-speed downlink packet access (HSDPA) and cdma2000 1x EV DV standards have been ratified. These 3G+ standards are based on the principal of a shared channel where users are dynamically assigned codes on packet-by-packet bases. This approach to radio resource sharing is optimal for data services that tend to have bursts of data. The 3G+ standards, therefore, lower the cost of delivering data services for the operators. Also, 3G+ standards employ fast rescheduling algorithms that reduce the variance in downlink transmission delay. This enhances the experience with delay-sensitive applications such as interactive games. Beyond 3G+, work has already begun on fourth-generation (4G) technology, with the goal of achieving data rates up to 100 Mbps.
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WIRELESS BASESTATIONS: News
Linear Technology Corporation announces the LTC2285, a 14-bit 125Msps dual high-speed Analog to Digital Converter (ADC) with low power dissipation of just 395mW per channel. This high speed device...
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Hifn announced the SentryXL family of security processors, an addition to its Applied Services Processors (ASPs), delivering high-performance data encryption, compression, and hashing.
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IDT™ unveiled its 10G serial buffer, the industry’s first Serial RapidIO®-based memory solution. When coupled with the previously announced IDT pre-processing switch (PPS), this...
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Analog Devices introduced the ADF4602-1 transceiver for 3G femtocell base stations that support the UMTS wireless interface standard for home and office wireless infrastructure equipment.
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ANADIGICS has announced its AWB7220 power amplifier (PA), targeted at the 3G and 4G femtocell markets and for use in customer premises equipment (CPE) worldwide.
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[MORE NEWS ABOUT WIRELESS BASESTATIONS]
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WIRELESS BASESTATIONS: Blogs
By Tom Flanagan, Texas Instruments For communications equipment manufacturers, selecting the right technology can make it easier to reach the growing small and medium-sized business (SMB)...
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[MORE BLOGS ABOUT WIRELESS BASESTATIONS]
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WIRELESS BASESTATIONS: Semiconductor Solutions
Our Base Station products include amplifiers, filters, down converters, passive components, transmitters, and more.
[from TriQuint] >>
National Semiconductor offers a wide range of high performance signal path solutions for wireless basestation (BTS) and wireless infrastructure applications in 2G, 2.5G, 3G and 4G mobile telephony,...
[from National Semiconductor] >>
Providing end-to-end wireless coverage, virtually every wireless call made today passes through Analog Devices' silicon. Our comprehensive portfolio of signal processing ICs, chipsets, reference...
[from Analog Devices] >>
Freescale has developed four next-generation PowerQUICC™ III processors based on the scalable e500 system-on-chip (SoC) platform and Power Architecture processor core. These PowerQUICC III...
[from Freescale] >>
Maxim has over 120 RF IC and high-speed data-converter products designed specifically for wireless-infrastructure applications. All devices are engineered to deliver the highest dynamic range, the...
[from Maxim] >>
High linearity RF components, low distortion filters and high speed data converters enable today's high performance cellular base stations
[from Linear Technology] >>
[MORE SEMICONDUCTOR SOLUTIONS ABOUT WIRELESS BASESTATIONS]
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WIRELESS BASESTATIONS: Application Resources
ACPR (adjacent channel power ratio), AltCPR (alternate channel power ratio), and noise are important performance metrics for digital communication systems that use, for example, WCDMA (wideband...
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A basic design decision facing an operator of a WCDMA network is the nature and level of synchronization
between base stations in the network. The WCDMA standard allows asynchronous operation in...
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This document describes how to implement a maximum a posteriori (MAP) decoding algorithm for wireless turbo codes on a TMS320C62x(tm) digital signal processing (DSP) device. The max-log-MAP...
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The number of wireless standards and their potential single-chip combinations raises many questions about the right process technology for implementing next-generation products.
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National Semiconductors offers a wide range of high performance signal path solutions for wireless basestation (BTS) and wireless infrastructure applications in 2G, 2.5G, 3G and 4G mobile...
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Mobile Communication Base Stations - Crystal oscillators used in equipment in base stations need to be more compact wiuth a more stable operation.
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This paper identifies common fundamental techniques underlying cdmaOneTM, CDMA2000® and WCDMA technologies, as well as their family of standards. Furthermore, this paper demonstrates that these...
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BASESTATIONS / WIRELESS INFRASTRUCTURE
* Ethernet/Backhaul
* High-Speed ADCs
* High-Speed DACs
* High-Speed Signal Distribution
* Wireless and RF System Design
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This application note describes a reference design of multi-channel digital up converters(DUCs) and digital down converters (DDCs) for CDMA2000 and UMTS base stations. The provided DSP algorithms...
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Digital tools add special capability for the trends impacting wireless design
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[MORE APPLICATION RESOURCES ABOUT WIRELESS BASESTATIONS]
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WIRELESS BASESTATIONS: Reference Designs
The Searcher function found with W-CDMA Baseband processing demands significant signal processing, which makes it ideal for implementation in a Xilinx FPGA. The inherent flexibility of the FPGA...
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IDT™ announced achievement of full interoperability between the IDT pre-processing switch (PPS) and the highest performance digital signal processors (DSP) from Texas Instruments (TI)....
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Freescale Semiconductor introduces a development platform designed to speed and simplify creation of networking equipment for 3G Long Term Evolution (LTE) and other emerging broadband wireless...
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RACH detection forms a key part of the WCDMA base-band functionality, and demands significant levels of signal processing, making it ideal for implementation in a Xilinx FPGA that can leverage...
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Applied Micro Circuits will demonstrate advanced technology for more power-efficient basestations.
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[MORE REFERENCE DESIGNS ABOUT WIRELESS BASESTATIONS]
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WIRELESS BASESTATIONS: Related Articles
Suited for 3G basestaion, the IAM-93516 E-pHEMT MMIC mixer operates with RF and LO frequency inputs from 400 to 3,000 MHz and an IF output extending from 70 to 300 MHz. The device provides greater...
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Fast and precise production of current and future wireless devices, all-in-one architecture with integrated vector signal generator and analyzer are the prerequisites for state-of-the-art...
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The LT5557, a new high linearity, 3.3V, downconverting active RF mixer from Linear Technology. It elevates receiver dynamic range performance while extending bandwidth capability to cover 3G and...
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Linear Technology's LTC6103 contains two independent, high side current sense amplifiers with exceptional precision and response time. As a dual, the LTC6103 is ideal for multiple current sensing...
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The LT5528 direct I-Q modulator enables more-compact lower-cost cellular base-station transmitter designs by incorporating a matched pair of double-balanced mixers that form a carrier-suppressed...
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TI’s new UCC28070 and UCC28060 are the industry’s first single-chip, interleaved power factor correction control circuits. These ICs...
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[MORE RELATED ARTICLES ABOUT WIRELESS BASESTATIONS]
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