Method and apparatus for enhancing rohc performance when...

H - Electricity – 04 – L

Patent

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H04L 29/06 (2006.01)

Patent

CA 2633896

Examples disclosed herein relate to methods and systems for enhancing performance of robust header compression (RoHC) compressor when encountering silence suppression. In one example, an RTP timestamp increment is calculated for successive packets, until a predetermined number of packets have a constant timestamp increment value. The constant RTP timestamp increment value is assigned as a timestamp stride (TS_STRIDE) value for compression, the value of each RTP timestamp (TS) is scaled by timestamp stride (TS_STRIDE) and the header is compressed using the assigned value.

Dans des modes de réalisation pris en exemple, l'invention concerne des procédés et des systèmes d'amélioration de performance d'un compresseur de compression d'en-tête robuste (RoHC) lorsque survient une suppression de silence. Dans un mode de réalisation pris en exemple, on calcule un incrément de temps de transit de RTP pour des paquets successifs jusqu'à ce qu'un nombre prédéterminé de paquets présente une valeur d'incrément constante de temps de transit. La valeur d'incrément constante de temps de transit est affectée comme valeur TS_STRIDE (timestamp stride) pour une compression, la valeur de chaque temps de transit (TS) de RTP étant mise à l'échelle par TS_STRIDE et l'en-tête étant compressé à l'aide de la valeur affectée.

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