Radiocommunication systems and terminals with increased...

H - Electricity – 04 – B

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H04B 7/26 (2006.01) H04Q 7/36 (2006.01) H04Q 7/30 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2267992

Variances in bandwidth used by a radiocommunication connection are adapted to by changing the type of information being transmitted. For example, in a TDMA environment, a first downlink time slot associated with a double- or triple-rate connection may have a first format, while a second time slot associated with the same connection may have a second format different from the first format. Additional bits in the second (or third) time slot can be used to carry payload information which is not required to be transmitted at greater than full-rate. Moreover, FACCH information need only be transmitted in the master channel.

Il est possible d'adapter les différentes largeurs de bande utilisées par une connexion de radiocommunication en modifiant le type des données transmises. Dans un environnement AMRT par exemple, une première tranche horaire descendante associée à une connexion à double ou à triple débit peut avoir une première composition, tandis qu'une seconde tranche horaire associée à la même connexion peut avoir une composition différente de la première. Des bits supplémentaires de la seconde (ou troisième) tranche horaire peuvent être utilisés pour transporter des données utiles qui ne doivent pas obligatoirement être transmises à un débit supérieur au débit rapide. En outre, les données FACCH ne doivent être transmises qu'au canal principal.

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