Bangladesh mobile telecommunications operator, GrameenPhone, has selected Anite’s Nemo Xynergy, Nemo Invex II and Nemo Walker Air for collection and analysis of wireless voice quality and broadband network data.
Cobham Wireless, a global leader in the provision of advanced wireless coverage and mobile communication systems, has announced that the industry-standard TM500 network test system now includes support for 256 QAM modulation – one of the key features of LTE-Advanced (LTE-A, also known as 4G) which is being introduced in 3GPP Release 12.
Alcatel-Lucent is helping AIS, Thailand’s leading mobile service provider, to improve cellular services for residents and the country’s substantial tourist economy with the country’s first deployment of small cells technology.
Alcatel-Lucent launched a new device for residential and business use that will allow operators to accelerate the deployment of ultra-broadband access in order to meet ever-growing demand for faster data speeds in homes and the workplace.
The global market for LTE capable antennas for wireless infrastructure, including passive and active types, is set to reach almost $4 billion in 2015, according to the latest forecast from ABI Research.
Skyworks Solutions Inc., an innovator of high performance analog semiconductors connecting people, places and things, announced it is opening a state-of-the-art design center and laboratory facility in San Diego, Calif. The design center will focus on the development of leading edge technologies targeting 4G/5G protocols and the Internet of Things.
Cobham Wireless announced the latest version of the industry-standard TM500 WCDMA network test system, with expanded capability to emulate four cells and hundreds of mobile terminals from a single benchtop unit.
Skyworks Solutions introduces a series of voltage-controlled variable attenuators (VVAs) which are designed to have excellent third order input intercept point and superb dynamic range. The devices cover operation from 1.45 to 5.0 GHz, and have control voltages ranging from 0 to 5.0 V.
Achieving sufficient capacity to meet the forecast backhaul needs over the next few years will be a major challenge. This white paper describes the technique of Air Division Duplexing (ADD), which makes use of MIMO and spatial multiplexing techniques to achieve simultaneous transmission and reception of data on each carrier frequency, and has been shown to achieve full duplex data rates1 in excess of 1 Gb/s in a 28 MHz channel
allocation2 in the microwave bands.
While LTE-Advanced brings the promise of higher data rates, designing devices for use in LTE-A offer new test challenges. This paper provides an overview of LTE MIMO and carrier aggregation technologies and describes different methodologies for testing these new capabilities including multi-antenna techniques, MIMO spatial multiplexing, beam steering, as well as the different carrier aggregation modes.
This white paper presents an overview of system level design for
wireless communications equipment. It will be useful not just to those involved in the development of new communications systems, but also to designers of new products using existing systems, or anybody seeking to develop new architectures and/or components to reduce product cost and/or size. It also describes the benefits and implications of developing highly integrated System on a Chip (SoC) solutions, which dominate in today's high volume communications products.
With many groups now beginning to consider the drivers for 5th Generation wireless networks, this timely document includes contributions from 20 IWPC member organizations from around the world and aims to advance certain understandings and concepts for adoption in wireless systems to be deployed beyond the year 2020. This 89 page document covers a broad range of 5G topics with emphasis on mm-wave.
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.
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.
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.
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.
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).
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.