Patent · US Expired

Simulated air interface system for simulating radio communication

US5465393A · kind A · utility

25Cited by

7References

11Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Tore Frostrom · Stockholm, SE
Tomas J. Nilsson · Huddinge, SE
Yngve Andersson · Älta, SE
Michael Carlsson · Karlskoga, SE
Lars Sundell · Moss, NO
Jonas P. Uden · Gothenburg, SE

Key dates

Filing date	Apr 12, 1993
Grant date	Nov 7, 1995
Priority date	—
Expiry date	Apr 12, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH04W92/10
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A simulated air interface system repeatedly simulates a constant but variable open air environment. In the system, a plurality of mobile stations are connected to at least one base station by cables. The system separates the radio path at each mobile station's antenna into an uplink path and a downlink path so that frequency modulation and signal reflections are not introduced into the system. The conditions of the simulated open air environment can be varied by introducing attenuation, doppler shifts, and signal fading into the system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.