Femtocell developer Airvana is charging Ericsson with breaching their contract over femtocell technology, in a lawsuit filed in the Supreme Court of the State of New York.

Technology companies are not just making their products less carbon-intensive; they are also increasingly designing products to improve energy efficiency in the industries that they serve, according to the latest in a series of Greenpeace ratings of the sector's energy practices.

Qualcomm this week revealed a key step in enabling voice calls over LTE handsets. Working with Ericsson, the chipmaker says it recently completed the first voice call handover between LTE and 3G networks, and will showcase the achievement later this month at Mobile World Congress in Barcelona.

The top U.S. carriers over the past year have stepped up their efforts to grab more spectrum for 4G wireless data services needed to accommodate a seemingly insatiable and exploding population of iPhone, iPad and other mobile device users.

Ericsson veteran Ulf Ewaldsson will replace Hakan Eriksson as chief technology officer of the Swedish mobile equipment company but won't take his place at its Silicon Valley development center.

Telecommunications vendors Ericsson and ZTE have signed a global cross-licensing agreement and both parties have also agreed to drop all pending litigation, Ericsson said on Friday.

LAS VEGAS -- Sony showed off its new Xperia Ion smartphone in the middle of its massive booth at CES here, drawing attention to its multimedia features and sleek styling.

As wireless access is added to new types of devices, Ericsson is reorganizing its licensing department in an effort to make more money from its patents, the company said on Thursday.

Using more spectrum and advanced antennas, vendors and operators plan to increase mobile speeds. But the key to increasing speeds as researchers look at future networks, which will someday be dubbed 5G by marketers, is to shorten the distance between users and base stations, and allowing them to automatically be reconfigured.

Security researchers have shown that carefully crafted text messages sent to cell phones via short message service (SMS) can cause them to shutdown without the knowledge of the owner.

A number of different technologies are being developed or improved to offer higher speeds for fixed and mobile broadband networks, as operators are preparing to compete with each other and carry video traffic in 3D and at higher resolutions, which is expected to happen in the coming year.