| US 7,450,630 B2 | ||
| Mobile radio telephone receiver | ||
| Markus Doetsch, Schliern (Switzerland); Tideya Kella, München (Germany); Peter Schmidt, Erpolzheim (Germany); Peter Jung, Otterberg (Germany); Jörg Plechinger, München (Germany); and Michael Schneider, München (Germany) | ||
| Assigned to Infineon Technologies AG, Munich (Germany) | ||
| Filed on Mar. 16, 2001, as Appl. No. 9/809,788. | ||
| Claims priority of application No. 100 12 875 (DE), filed on Mar. 16, 2000. | ||
| Prior Publication US 2001/0036222 A1, Nov. 01, 2001 | ||
| Int. Cl. H04B 1/00 (2006.01) | ||
| U.S. Cl. 375—148 [375/285; 375/316; 375/340] | 4 Claims |
| 1. A device for processing a data signal that is transmitted over time variant paths of an air interface in a mobile radio
receiver, the device comprising:
a rake receiver portion having a number of fingers;
a path search and evaluation device for finding paths of the air interface which must be allocated to said fingers and for
estimating at least a path energy with respect to each detected path, said path search and evaluation device connected to
said rake receiver portion;
a rake finger selection and power consumption reduction device for selecting at least one of said fingers and to carry out
a reduction of power consumption in a selected finger of said fingers, said rake finger selection and power consumption reduction
device connected to said rake receiver portion and said path search and evaluation device; and
said rake finger selection and power consumption reduction device selecting a finger of said fingers if an estimated path
energy of a path that is allocated to said finger is less than a threshold value that is a function of a mean value of estimated
path energies and a variance of the estimated path energies of said fingers, said threshold value being based on the difference
between the mean value of the estimated path energies and the square root of the variance of the estimated path energies of
said fingers.
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