公开(公告)号：CA2666376C

公开(公告)日：2015-06-02

申请号：CA2666376

申请日：2006-10-19

Applicant: ERICSSON TELEFON AB L M

Inventor： GUSTAFSSON JORGEN ,  TAN XIANGCHUN ,  HEIKKILA GUNNAR ,  PETTERSSON MARTIN

IPC: H04N21/647 ,  H04N21/442

Abstract: A method and a device utilizing an algorithm using measurement data derived from parameters related to a video-streaming player and/or parameters related to data transport is disclosed. The data are used as input data in a model designed to generate a value corresponding to the quality of the multimedia sequence, such as for example a MOS score.

公开(公告)号：CA2666376A1

公开(公告)日：2008-04-24

申请号：CA2666376

申请日：2006-10-19

Applicant: ERICSSON TELEFON AB L M

Inventor： PETTERSSON MARTIN ,  HEIKKILA GUNNAR ,  GUSTAFSSON JORGEN ,  TAN XIANGCHUN

IPC: H04N7/26 ,  G06T7/00

Abstract: A method and a device utilizing an algorithm using measurement data deriv ed from parameters related to a video-streaming player and/or parameters rel ated to data transport is disclosed. The data are used as input data in a mo del designed to generate a value corresponding to the quality of the multime dia sequence, such as for example a MOS score.

公开(公告)号：CA2295084C

公开(公告)日：2007-05-15

申请号：CA2295084

申请日：1998-06-23

Applicant: ERICSSON TELEFON AB L M

Inventor： UVLIDEN ANDERS ,  KARLSSON ANDERS ,  MINDE TOR BJORN ,  HEIKKILA GUNNAR

IPC: H04W24/00

Abstract: An improved method and system of measuring the perceived speech quality in mobile telecommunications network are disclosed herein. In an embodiment of the invention, the method uses both radio link parameters and an objective measuring technique performed on received signals to estimate the speech quality perceived by the end-user. A radio link processing stage extracts temporal information from a set of available radio link parameters such as the BER, FER, RxLev, handover statistics, soft information, and speech energy. Concurrently, a speech processing stage is used to process a sequence of original signals and received signals, obtained from the output of a telecommunications system. The signal sequences are processed by an objective measuring technique such as Perceptual Speech Quality Measure (PSQM). The outputs from the radio link processing and speech processing stages are utilized to calculate an estimate for speech quality.

公开(公告)号：AU7950598A

公开(公告)日：1999-01-04

申请号：AU7950598

申请日：1998-06-23

Applicant: ERICSSON TELEFON AB L M

Inventor： MINDE TOR BJORN ,  KARLSSON ANDERS ,  UVLIDEN ANDERS ,  HEIKKILA GUNNAR

IPC: H04W24/00 ,  H04Q7/34