CELL SEARCH METHOD FOR MULTI-MODE TELECOMMUNICATION APPARATUS, SUCH APPARATUS, AND COMPUTER PROGRAM FOR IMPLEMENTING THE METHOD
First Claim
1. A cell search method for a multi-mode telecommunication apparatus, the method comprising:
- receiving signals present in a frequency range;
transforming received signals into frequency domain;
estimating power spectral density from transformed signals;
estimating probability of different communication modes by correlating the estimated power spectral density with power spectral density signatures of said different communication modes; and
performing cell search according to estimated most probable communication mode.
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Abstract
A cell search method for a multi-mode telecommunication apparatus is disclosed. The method comprises receiving signals present in a frequency range; transforming received signals into frequency domain; estimating power spectral density from transformed signals; estimating probability of different communication modes by correlating the estimated power spectral density with power spectral density signatures of said different communication modes; and performing cell search according to estimated most probable communication mode. Such an apparatus and a computer program for performing the method are also disclosed.
27 Citations
17 Claims
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1. A cell search method for a multi-mode telecommunication apparatus, the method comprising:
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receiving signals present in a frequency range; transforming received signals into frequency domain; estimating power spectral density from transformed signals; estimating probability of different communication modes by correlating the estimated power spectral density with power spectral density signatures of said different communication modes; and performing cell search according to estimated most probable communication mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multi-mode telecommunication apparatus comprising:
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a radio receiver arranged to receive signals present in a frequency range; a transformer means arranged to transform signals received by the radio receiver into frequency domain; a power spectral density estimator arranged to estimate power spectral density of signals transformed by the transformer; a probability estimator arranged to estimate probability of different communication modes, said probability estimator comprising a correlator arranged to correlate the estimated power spectral density with power spectral density signatures of said different communication modes; a plurality of cell searchers, each arranged to perform cell searching for a communication mode; and a controller arranged to assign the one of said plurality of cell searchers to perform cell search according to the estimated most probable communication mode. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer readable storage medium having stored therein instructions, which when executed by a processor cause the processor to perform a cell search method for a multi-mode telecommunication apparatus, the method comprising:
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receiving signals present in a frequency range; transforming received signals into frequency domain; estimating power spectral density from transformed signals; estimating probability of different communication modes by correlating the estimated power spectral density with power spectral density signatures of said different communication modes; and performing cell search according to estimated most probable communication mode.
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Specification