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Cellular 4G/LTE Channel

Cellular and mobile communications related topics

ARTICLES

Infineon Technologies supplies eight RF components for Samsung Galaxy S5

July 21, 2014

Infineon Technologies supports Samsung’s Galaxy S5 with a total of eight RF components, including LTE Low Noise Amplifiers (LNAs), Quad LNA banks, a GPS LNA and SPDT RF switches.


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Anritsu leads market in eMBMS as GCF validations begin

July 15, 2014

 Anritsu, a global leader in wireless telecommunications test equipment, announces that it is the market’s leading supplier of the first industry approved protocol conformance test cases for mobile devices capable of receiving evolved Multimedia Broadcast Multicast Services (eMBMS) broadcasts.  


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UK Broadband and Siklu backhaul London small cell traffic

July 4, 2014

UK Broadband is putting Siklu’s EtherHaul-1200 system to work in backhauling small cell traffic for its central London 4G network.


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Alcatel-Lucent partners with and invests in EBlink

June 23, 2014

Alcatel-Lucent has signed a commercial and technological partnership agreement with EBlink to expand its capabilities for 4G LTE ultra-broadband mobile access networks and small cells.


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Huawei hosts the Ireland Broadband Forum

June 16, 2014

Huawei hosted the Ireland Broadband Forum in Dublin– an event which brought together leading names from across the telecoms world to discuss the future of high-speed connectivity in Ireland.


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RFS enables wireless communications at Brazil’s Maracanã Stadium for FIFA World Cup 2014

June 10, 2014

The 80,000 fans expected per match at the legendary Maracanã Stadium in Rio de Janeiro during the 2014 FIFA World Cup will be able to share the experience with family and friends over a new multi-operator, multi-technology network infrastructure enabled by Radio Frequency Systems (RFS), the global wireless and broadcast infrastructure specialist.


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Ericsson enables Taiwan's FarEasTone to launch world's first LTE service on APT700 band

June 9, 2014

Taiwan's FarEasTone Telecommunications has become the first mobile operator to launch a commercial LTE service on the APT700 band, based on technologies provided by Ericsson.


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RFS enhances DAS portfolio with low PIM directional couplers & power dividers

June 5, 2014

Radio Frequency Systems (RFS), the global wireless and broadcast infrastructure specialist, announces the availability of new models of its low PIM directional couplers and power dividers. Designed to support in-building and in-tunnel wireless applications using DAS systems, the latest products from RFS provide a cost-effective way to divide and distribute power as needed.


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Component shortages stifle 1Q14 RAN revenues in spite of China LTE rollout

June 3, 2014

For the first quarter of 2014, vendors reported revenue affected by certain component shortages which are forecast to lift towards the end of the second quarter or the beginning of the third quarter this year.


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Expanding LTE coverage is priming VoLTE adoption and mobile devices shipments

June 3, 2014

By the end of 2013, global LTE-related cellular subscriptions surpassed 230.9 million, 3.3 percrent of mobile subs, and will continue to grow at a CAGR of 36.6 perent between 2014 and 2019, exceeding 2 billion. The extensive presence of LTE networks is also stimulating the deployment of VoLTE. By the end of 2014, there are expected to be 59.6 million VoLTE subscriptions in place, and it is expected that nearly 56 percent of LTE-related cellular subscriptions will be using VoLTE services by the end of 2019.


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IMAGE GALLERIES

Brooklyn 5G Summit 2014

NYU Wireless - Brooklyn, NY

DOCUMENTS AND FILES

Mobile Data Backhaul: The Need For E-Band

February 22, 2013

Now that the need for ultra high capacity radios has become an unofficial requirement with a potentially large market backing it, the call for more spectrum savvy radios is in order. Traditional wisdom would have us assume that the legacy pure-play millimeterwave equipment vendors have this market clenched; however, every time there is a technology shift, as is occurring with the E-Band market, it opens the field up to new market leaders and a new competitive landscape. Thus, we have seen traditional microwave vendors throw their hats into the millimeterwave ring with various levels of commitment from OEMing/private labeling traditional millimeterwave vendors’ radios to designing their own millimeterwave radios.

TU Dresden uses National Instruments Platform for 5G Research

December 13, 2012
Wireless consumer's insatiable demand for bandwidth has spurred unprecedented levels of investment from public and private sectors to explore new ways to increase network capacity. Service providers, now deploying fourth generation networks, are already beginning to look toward and plan for fifth generation networks (5G) to meet the escalating demand. Researchers at TU Dresden (TUD) have begun investigations into 5G technologies using a graphical system design approach and National Instruments' software defined radio platforms. Using the NI platform, TUD researchers significantly compressed the time to transition from concept to prototype.

Solutions for Enabling Fast, Accurate and Efficient Testing of Voice Quality in LTE User Equipment

September 18, 2012
This application note is designed to provide you with the latest insights on how to best address the long list of test requirements when testing the voice quality of LTE UE, with the right VoIP test building blocks. Successfully providing voice support on LTE will require UE developers to bring together a host of new features and capabilities. Many of these items have been around for a while but have not yet been applied to mobile networking. Others are completely new. Regardless, bringing them together will likely cause significant test pain, as they will need to be tested in conjunction with LTE and/or IMS to be fully exercised.

Small-Signal Intermodulation Distortion in OFDM Transmission Systems

August 13, 2012
A system that utilizes OFDM/OFDMA, such as the E-UTRA (LTE) downlink or the IEEE 802.11a/g and the IEEE 802.16 physical layers, transmits OFDM symbols, each comprising a number of modulated sub-carriers carrying data or pilot symbols, with inter-subcarrier spacing being equal to or an integer multiple of a fixed frequency. The channel bandwidth (B) is determined by the number of 'occupied' (modulated) subcarriers and the subcarrier spacing.

IMS Architecture: The LTE User Equipment Perspective

July 17, 2012
The IP Multimedia Subsystem (IMS) dates from 3GPP release 5 almost a decade ago, but is now becoming a reality with the rollout of IMS-based LTE networks. IMS enables convergence on multiple fronts, including access types (fixed, mobile), service types, application control functions and convergence between telephony and traditional data delivery. This paper presents a high-level technical view of the IMS architecture as seen by LTEcapable User Equipment (UE).

Voice and SMS in LTE

April 6, 2012
This white paper summarizes the technology options for supporting voice and short message service (SMS) in LTE, including circuit switched fallback (CSFB), SMS over SGs, and voice over LTE (VoLTE). It includes background information on the standardization process, and the commercial implications for the different options. The white paper also addresses test and measurement requirements resulting from the support of voice and SMS in LTE.

Minimizing PIM Generation From RF Cables and Connectors

March 9, 2012
Understanding mechanical tolerances, coaxial design details and connector materials used in cable assemblies helps produce communications equipment with the lowest levels of passive intermodulation (PIM).

Solutions for LTE-Advanced Physical Layer Design and Test

February 15, 2012
LTE-Advanced (LTE-A) is an emerging mobile communications standard that boasts a number of significant benefits, including the ability to take advantage of advanced topology networks and achieve target peak data rates of 1 Gbps in the downlink and 500 Mbps in the uplink. This white paper covers using signal generation and analysis to overcome challenges associated with carrier aggregation.

Electronically Scanned Arrays for Fast Testing of Large Antennas

February 12, 2012
This paper discuss the adaptation of the fast multi-probe technology to an existing classical planar near field facility through the manufacturing, installation and test of a partial demonstrator in Thales Alenia in Toulouse.

Leveraging OFDMA Technology for HLS Applications

February 12, 2012
In this paper we take a closer look at various OFDMA based Broadband Wireless Access (BWA) for Homeland Security (HLS) applications and their implementation. Our primary focus is to understand the capabilities required from these applications and to show how flexibility and controllability of system components can help address these requirements.

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