The Canadian smartphone maker and its U.S. nemesis are among 15 companies named in a lawsuit filed before a Delaware court
Research in Motion (RIM), Apple Inc., and 13 other phone makers and wireless service providers are being sued for patent infringement by patent holding company over 3G and 4G technologies that figure in determining when devices can switch cells in a mobile network.
The patents in question includes a process for determining the manner in which handover is performed in a mobile radio network including plurality of cells, where each cell is associated with a base station supporting communication with a mobile device, the court document said.
The patent process, according to court documents, includes steps for monitoring the quality of a signal as a function of time transmitted between candidate base stations and the mobile phone.
A handover refers to the transfer of user connection from one access point to another.
“In mobile telephone, it is necessary to maintain established user connection even if the user is changing locations, or the radio access environment surrounding the user is changing, while the connections is still active,” said Steelhead in its filing.
IDC Analyst Connection – Unified Threat Management: Benefits of an Integrated Approach to Network Security
This IDC Analyst Connection looks at the the benefits of using a UTM platform integrated with network connectivity and how it will save the enterprise money, reduce the number of vendors' products needed to be purchased, improve the communications between devices, offer the opportunity for organizations to deploy more sophisticated capabilities, and vastly improve security.