Method and system for improved traffic management in...

H - Electricity – 04 – W

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H04W 16/04 (2009.01)

Patent

CA 2345236

A technique is disclosed for traffic management in spread spectrum wireless telecommunication systems using different admission control levels on different frequency layers. In an embodiment of the invention, the capacity on a first frequency, having a specific admission control level, is permitted to increase to the point where the development of coverage holes occurs due to the effects of cell breathing. This is compensated for by maintaining a designated frequency that is free from coverage problems by applying a stricter admission control relative to the first frequency. Thus calls or new access attempts affected by coverage problems on the first frequency are diverted to the designated frequency. The method improves overall network capacity and call quality in the network by more efficiently utilizing spectral resources.

L'invention concerne une technique de gestion de trafic dans des systèmes de télécommunications sans fil à spectre étalé au moyen de couches de fréquences différentes de niveaux de commande d'admission. Dans un mode de réalisation, la capacité d'une première fréquence possédant un niveau de commande d'admission spécifique, augmente jusqu'au point de développement de trous de couverture sous l'effet de la respiration des cellules. On corrige ce phénomène par maintien d'une fréquence déterminée exempte de problèmes de couverture au moyen de l'application d'une commande d'admission plus stricte par rapport à la première fréquence. Par conséquent, les appels ou de nouvelles tentatives de communication subissant des problèmes de couverture à la première fréquence sont déviés vers la fréquence déterminée. Ce procédé permet d'améliorer la capacité générale du réseau et la qualité des appels sur ce réseau au moyen d'une utilisation plus efficace des ressources spectrales.

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