Method for transmit power control dependent on subband load

H - Electricity – 04 – B

Patent

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H04B 7/005 (2006.01) H04B 17/00 (2006.01)

Patent

CA 2667166

A system and method for inter-cell interference mitigation in FDM systems is provided. The system provides for increased efficiency with load metric data generated per subband for both serving and neighboring non-serving cells. The system robustly provides for sharing load metric date per subband through a backhaul channel as well as directly from cell to adjacent cell. Furthermore, a UE based communication system allows UE reduction of assigned load controls based on directly reading a neighboring cells' load metrics. The system thus robustly handles various cell types (e.g. synchronous or asynchronous) and a variety of UE capabilities while providing increased efficiency in managing inter-cell interference.

L'invention concerne un système et un procédé permettant d'atténuer de brouillage intercellulaire dans des systèmes FDM. Ce système permet d'améliorer l'efficacité avec des données métriques de charge générées par la sous bande pour les cellules de service et les cellules hors service voisines. Le système permet de partager des données métriques de charges par sous bande de manière robuste via un canal de liaison terrestre ainsi que de manière directe de cellule à cellule contiguë. Par ailleurs, un système de communication à base d'installations utilisateurs UE permet à l'UE de réduire les commandes de charge attribuée à partir d'une lecture directe de données métriques de charge des cellules voisines. Ainsi, le système gère de manières robuste divers types de cellules (par exemple synchrones ou asynchrones) et une variété de capacités d'UE et offre une efficacité accrue dans la gestion du brouillage intercellulaire.

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