Method and system for performing a handoff in a wireless...

Details Method and system for performing a handoff in a wireless... Method and system for performing a handoff in a wireless...

H - Electricity

04

W

H04W 52/28 (2009.01) H04W 52/38 (2009.01) H04B 7/005 (2006.01)

Patent

CA 2380368

A mobile station (102) transmits a plurality of channels including a pilot channel and at least one information channel. In the exemplary embodiment, the base station (106) determines the adequacy of the transmission energy of the reverse link signal in accordance with the received energy of the reverse link pilot signal. In the present invention, the pilot channel transmission power is retained at the level it was prior to the frequency search excursion, while increasing the transmission energy of at least one other channel transmitted by the mobile station. In addition, when the mobile station (102) is not capable of increasing the transmission energy of all of the information channels, the mobile station (102) generates a ranking of the importance of the different information channels and selectively increases the transmission power of those channels.

Selon l'invention, un poste mobile (102) émet sur plusieurs canaux, notamment sur un canal pilote et au moins sur un canal d'informations. Dans un mode de réalisation de l'invention, une station de base (106) détermine la conformité de la puissance d'émission du signal de liaison retour, avec la puissance reçue du signal pilote de la liaison retour. Dans l'invention, on maintient la puissance d'émission de la voie pilote au niveau auquel elle était préalablement à l'excursion de recherche de fréquence, tout en augmentant la puissance d'émission d'au moins un autre canal sur lequel le poste mobile émet. En outre, lorsque le poste mobile (102) ne peut pas augmenter sa puissance d'émission sur tous les canaux d'informations, il produit un classement de l'importance des différents canaux d'informations et augmente de manière sélective sa puissance d'émission sur ces canaux.

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