H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/005 (2006.01)
Patent
CA 2527862
A method and apparatus provides for efficient data rate control and power control processes by transmitting a primary and a secondary pilot channel associated with a data channel. The primary and secondary pilot channels are used to improve the SNR-Signal to noise Ratio-, reference phase and amplitude estimates by combining them for the decoding of the data on the data channel. A ratio of power levels of the primary and secondary pilot channels is based on at least one of the data rate and payload size of the data channel. The power level of the primary pilot channel is maintained independent of at least one of data rate and payload size of the data channel. The power level of the secondary pilot channel may be adjusted based on at least one of data rate and payload size of the data channel. Based on the comparison between the calculated data rate of the data channel and a predetermined value, a determination is done, whether the transmission of the primary and the secondary common pilot channel is necessary.
L'invention concerne un procédé et un appareil permettant de régler efficacement le débit de données et les processus de réglage de la puissance par la transmission de canaux pilotes primaire et secondaire associés à un canal de données. Les canaux pilotes primaire et secondaire servent à décoder les données. Un rapport de niveaux de puissance des canaux pilotes primaire et secondaire est calculé sur la base du débit de données et/ou de la taille de la charge utile du canal de données. Le niveau de puissance du canal pilote primaire est maintenu indépendamment du débit de données et/ou de la taille de la charge utile du canal de données. Le niveau de puissance du canal pilote secondaire peut être réglé sur la base du débit de données et/ou de la taille de la charge utile du canal de données.
Lundby Stein A.
Odenwalder Joseph P.
Qualcomm Incorporated
Smart & Biggar
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