Jot Automation Oy

Elektrobit Wireless Communications Oy

Elektrobit Testing Oy

Bittium Wireless Oy

Juha Kemppainen

Torsti Poutanen

Jussi Harju

Tommi Jämsä

Ari Seppälä

Juha Meinilä

Marko Holappa

An Internet Protocol (IP) terminal, comprises communication means for communicating via an IP network, a processor and memory. The memory contains an operating software for the IP terminal and the processor is configured to execute the operating software. The operating software comprises a normal mode logic for implementing a normal mode operation and a restricted mode logic for implementing a restricted mode operation. The normal mode logic comprises program code for initiating a call of a first type under control of instructions from one or more dedicated servers. The restricted mode logic comprises program code for collecting connection information of other IP terminals and for initiating a call of a second type without instructions from the one or more dedicated servers.

Methods and equipment for fault tolerant IP service

A radio channel simulator configured to read radio channel data describing a radio channel and user data including at least one user signal, and to simulate the radio channel using a FIR filter comprising one or more FIR blocks for filtering the user data read based on radio channel data in connection with the simulation. The radio channel simulator is configured to transfer at least one FIR block at a delay level depicting a radio channel delay during simulation.

Method and apparatus for simulating radio channel

The invention relates to a method and device for performing channel simulation, the device comprising a set of channel simulation units (to) for simulating a radio channel, each unit comprising radio frequency parts (A toA) and baseband parts (B toB). In the solution of the invention, the baseband parts of several different units (to) are arranged to simulate the same channel.

Method and device for simulating radio channel

Growing community of inventors

Oulu, Finland

Juha Kemppainen