An adaptive time division duplexing method and apparatus for...

H - Electricity – 04 – Q

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Details

H04Q 7/20 (2006.01) H04B 7/26 (2006.01) H04Q 7/34 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2310696

An adaptive time division duplexing (ATDD) method and apparatus for duplexing transmissions on a communication link in wireless communication systems. Communication link efficiency is enhanced by dynamically adapting to the uplink and downlink bandwidth requirements of the communication channels. Time slots are flexibly and dynamically allocated for uplink (Ta) or downlink (Tb, Tc, Td) transmissions depending upon the bandwidth needs of a channel. Communication link bandwidth requirements are continuously monitored using sets of predetermined bandwidth requirement parameters. Communication channels configured to have either symmetric or asymmetric uplink/downlink bandwidths depending upon the needs of the channel.

La présente invention concerne un procédé et un appareil de duplexage temporel adaptatif permettant le duplexage de transmissions sur une liaison de communication dans des systèmes de communication sans fil. On améliore l'efficacité de la liaison de communication en effectuant une adaptation dynamique aux besoins en largeur de bande des voies de communication pour les liaisons descendantes et les liaisons ascendante. Les créneaux temporels sont attribués de manière flexible et dynamique aux transmissions ascendantes (Ta) ou descendantes (Tb, Tc, Td) selon les besoins en largeur de bande d'une voie. Les besoins en largeur de bande d'une liaison de communication sont constamment contrôlés grâce à des ensembles de paramètres de largeur de bande déterminés. Les voies de communication sont configurées pour disposer de largeurs de bande symétriques ou asymétriques pour les liaisons descendantes/ascendantes en fonction des besoins de la voie.

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