Arrangement plus method to emulate a multi-path environment in a radio network arranged in or extended into an environment that is free of multi-path effects

摘要

An arrangement (1) to emulate a multi-path environment in a wireless network, particularly in an UMTS or a CDMA network arranged in or extended into an environment that is free of multi-path effects like e.g. an environment inside of buildings, tunnels and the like is described, wherein said arrangement is characterized by at least two parallel Radio Frequency signal paths (AC, BC) showing different time delays, wherein said signal paths (AC, BC) on their first sides (C) are connected with each other and on their second sides (A, B) are connected with own antennas (4, 5) respectively. Furthermore a method to emulate a multi-path environment in a wireless network is described, said method comprising the steps of:- generating at least two substantially identical signals from one signal- individually delaying said substantially identical signals by different time delays,- combining said individually delayed signals in order to generate a new signal showing a behavior similar to a signal in a multi-path environment.