The loss affects service availability for communication the user equipment, a method for detecting jamming source and / or non-operation state in particular, the evaluation unit has an interface to the user equipment and the user equipment

摘要

The invention relates to a method of detecting a jamming transmitter affecting a communication user equipment, wherein said communication user equipment and a number of base node stations (BNS) are components of a cellular code division multiple access based radio network (RN), comprising the following steps: measuring a set of power parameters in the communication link at a first earlier time (t1) and at a second later time (t2), the power parameters comprising: (i) the CPICH Ec/Io (ii) the CPICH RSCP (iii) the received wide band power (WBp) within the bandwidth of the communication user equipment receiver verifying the conditions, that (a) the CPICH Ec/lo and the CPICH RSCP are not detectable at the second later time (t2), and (b) received wide band power (WBp) at the second later time (t2) compared to the first earlier time (t1) has increased (c) the increased value of the received wide band power (WBp) exceeds a basic noise floor (NF) by more than a threshold amount (X).