CDMA receiver, path search method and program

Details CDMA receiver, path search method and program CDMA receiver, path search method and program

2006-05-02

2006-05-02

Ghayour, Mohammed (Department: 2631)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S147000, C375S150000, C370S342000

Reexamination Certificate

active

07039097

ABSTRACT:
To perform path search processing by means of a smaller amount of calculation and less power consumption, region index calculator29decides, for each region resulting from subdividing the delay profile measurement range, whether or not it is a region in which there is a peak, and supplies the results of these decisions as index information. On the basis of this index information, region designation calculator27outputs information indicative of whether or not a given region is a region in which a path is present. On the basis of the information from region designation calculator27, data classifier24classifies data, after analogue-to-digital conversion, into data of regions in which there is a path and data of regions in which there is no path. Data integrator25integrates the data of the plurality of regions in which no path is present, making it into data of a single imaginary region, and data combiner26combines the data of the regions integrated by data integrator25, with the data of the regions in which there is a path. Delay profile measuring unit33forms a delay profile by calculating the correlation power of the combined data at each of a plurality of delays.

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patent: 2002/0003791 (2002-01-01), Hayata
patent: 2003/0026233 (2003-02-01), Ohsuge
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B. N. Vejlgaard et al., “Grouped Rake Finger Management Principle for Wideband CDMA,” 2000 IEEE 51st, Vehicular Technology Conference Proceedings, May 15-18, 2000, XP00979585, pp. 87-91.

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