Glass box models for predicting circuit switched speech quality in 3G telecommunications networks
申请公布号:EP2958360(A1)
申请号:EP20140172791
申请日期:2014.06.17
申请公布日期:2015.12.23
发明人:BEERENDS, JOHN;WIARDA, SJOERD-JAN;MEEUWISSEN, HENDRIK
分类号:H04W24/08
主分类号:H04W24/08
摘要:A method for predicting speech quality in a voice call between a mobile terminal and a mobile coupling node is disclosed. The method includes obtaining M values of a power parameter measured M times at different points in time over a first time interval of the duration of the call, where the power parameter is a parameter indicative of transmitted power in one of a first direction and a second direction of the call, the first direction being an uplink direction from the mobile terminal to the mobile coupling node, the second direction being a downlink direction from the mobile coupling node to the mobile terminal. The method also includes calculating a power factor for the call based on the M values of the power parameter, and, based on the calculated power factor, calculating a speech quality indicator for the other one of the first direction and the second direction.
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