Large scale measurement of subjective quality in mobile...

H - Electricity – 04 – W

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H04W 24/00 (2009.01)

Patent

CA 2595255

Large scale subjective signal quality measurements for a mobile radio communications system are made using a large number of handheld subscriber radio communication units moving at various positions in the mobile radio communications system. Each handheld subscriber unit stores a copy of a test voice or video signal stream as does a quality management network node. An uplink subjective signal quality for each such handheld subscriber unit is determined based on a comparison of the stored test signal and the received test signal from the handheld subscriber unit. A downlink subjective signal quality to each handheld unit is based on the returned test signal stream received from the handheld subscriber unit and the stored test signal stream. Because the handheld units do not perform the subjective quality comparison calculations, ordinary subscriber units that do not require significant extra data processing resources associated with those calculations may be used.

Des mesures à grande échelle de qualité subjective du signal pour un système de radiocommunications de mobiles sont faites au moyen d'un grand nombre d'unité de radiocommunications d'abonné tenues à la main se déplaçant en divers endroits du système de radiocommunications de mobiles. Chaque unité d'abonné tenue à la main conserve un exemplaire d'un signal vocal ou vidéo test, ainsi qu'un noeud de réseau de gestion de qualité. Une qualité du signal subjectif remontant pour chaque unité d'abonné tenue à la main est déterminé sur la base d'une comparaison du signal de test conservé et du signal de test reçu de l'unité d'abonné tenue à la main. Une qualité du signal subjectif descendant pour chaque unité d'abonné tenue à la main se base sur le flux de signal de test de retour reçu depuis l'unité d'abonné tenue à la main et le flux de signal test conservé. Etant donné que les unités tenues à la main ne font pas les calculs de comparaison de qualité subjective, on peut utiliser les unités d'abonnés ordinaires qui ne nécessitent pas de ressources supplémentaires de données significatives associées à ces calculs.

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