H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/38 (2006.01) H04B 7/005 (2006.01) H04B 7/26 (2006.01) H04Q 7/22 (2006.01) H04Q 7/36 (2006.01)
Patent
CA 2483186
In a radio communication system containing A-DPCH (Associated - Dedicated Physical Channel) to which soft handover is applied and HS-DPCCH (High Speed - Dedicated Physical Control Channel) to which hard handover is applied, it is possible to perform an appropriate transmission power control for the HS-DPCCH and maintain reception SIR of the HS-DPCCH at a predetermined SIR. An HO judgment section (30) judges whether the A-DPCH is in the soft handover state. When the A-DPCH is not in the soft handover state, a transmission radio section (42) sets the HS-DPCCH transmission power to power equal to the A-DPCH transmission power. When the A-DPCH is in the soft handover state, the transmission radio section (42) sets the HS-DPCCH transmission power to the A- DPCH transmission power added by an offset.
Dans un système de radiocommunications à canal A-DPCH (canal physique associé-spécialisé) auquel on applique un transfert souple, et à canal HS-DPCCH (canal de commande physique spécialisé grande vitesse) auquel on applique un transfert rigide, il est possible d'assurer une commande de puissance de transmission appropriée pour le canal HS-DPCCH et de maintenir un rapport signal/brouillage de réception à une valeur préétablie dans ce canal HS-DPCCH. Une unité d'évaluation HO (30) détermine si le canal A-DPCH est à l'état de transfert souple. Lorsque ce canal n'est pas à l'état de transfert souple, une unité de transmission (42) établit la puissance de transmission du canal HS-DPCCH à un niveau égal au niveau de puissance de transmission du canal A-DPCH. Lorsque ce canal est à l'état de transfert souple, l'unité en question (42) établit la puissance de transmission du canal HS-DPCCH à celle du canal A-DPCH complétée par un décalage.
Matsushita Electric Industrial Co. Ltd.
Osler Hoskin & Harcourt Llp
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