WIRELESS COMMUNICATION APPARATUS
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless communication apparatus includes: a first local generator that generates a first local frequency arranged around a center frequency of a band group; a first down converter that receives a supply of a local signal from the first local generator; and a complex filter that quickly changes filter wave characteristics according to frequency hopping. A control to set the hopping complex filter to all-pass characteristics in wireless communication in a band crossing a local frequency among the bands for hopping and in wireless communication for simultaneously using the bands and to set the hopping complex filter to one side frequency suppression characteristics in other wireless communications is performed.
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Citations
32 Claims
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1-16. -16. (canceled)
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17. A wireless communication apparatus that is used in wireless communication and that comprises a band group formed by bands formed by a predetermined frequency band, said wireless communication apparatus handling both wireless communication for hopping the bands in said band group by a predetermined sequence and wireless communication for simultaneously using the bands in said band group, said wireless communication apparatus comprising:
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a local generator that generates a local signal equivalent to a center frequency of said band group; a first down converter that uses the local signal generated by said local generator to down-convert a wireless signal in said band group; and a hopping complex filter that treats said down-converted signal as an input to change a passband. - View Dependent Claims (18, 19, 20, 21, 22, 23, 31, 32)
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24. A wireless communication apparatus that is used in wireless communication and that comprises a band group formed by bands formed by a predetermined frequency band, said wireless communication apparatus handling both wireless communication for hopping the bands in said band group by a predetermined sequence and wireless communication for simultaneously using the bands in said band group, said wireless communication apparatus comprising:
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a local generator that generates a local signal equivalent to a center frequency of said band group; a first up converter that uses the local signal generated by said local generator to up-convert a wireless signal in said band group; and a hopping complex filter that treats said up-converted signal as an input to change a passband. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification