Wireless transmission system, wireless communication device and wireless transmission method
First Claim
1. A wireless transmission system, comprising:
- a plurality of antenna pairs each formed from a combination of a transmission antenna and a reception antenna which correspond to each other and arranged such that a wireless signal transmitted from the transmission antenna of one of the plural antenna pairs directly arrives as a desired wave at the reception antenna of the one antenna pair and a wireless signal transmitted from the transmission antenna of a different one of the plural antenna pairs different from the one antenna pair directly arrives as an unnecessary wave at the reception antenna of the one antenna pair;
a demodulation functional unit provided corresponding to each of the antenna pairs for demodulating a modulation signal received by the reception antenna; and
a transmission characteristic correction unit for carrying out correction calculation based on a transmission characteristic of a transmission space between the transmission antennae and the reception antennae based on demodulation signals demodulated by the demodulation functional units corresponding to the reception antennae to acquire an output signal corresponding to a transmission subject signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein is a wireless transmission system including a plurality of antenna pairs; a demodulation functional unit; and a transmission characteristic correction unit. The plurality of antenna pairs each including a transmission antenna and a reception antenna. A wireless signal transmitted from a transmission antenna directly arrives as a desired wave at a corresponding reception antenna. Meanwhile, a wireless signal transmitted from a different transmission antenna directly arrives as an unnecessary wave at the reception antenna. The demodulation functional unit corresponding to each antenna pair demodulates a modulation signal received by the reception antenna. The transmission characteristic correction unit carries out correction calculation based on a transmission characteristic of a transmission space between the transmission and reception antennae based on demodulation signals demodulated by the demodulation functional units to acquire an output signal corresponding to a transmission subject signal.
54 Citations
20 Claims
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1. A wireless transmission system, comprising:
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a plurality of antenna pairs each formed from a combination of a transmission antenna and a reception antenna which correspond to each other and arranged such that a wireless signal transmitted from the transmission antenna of one of the plural antenna pairs directly arrives as a desired wave at the reception antenna of the one antenna pair and a wireless signal transmitted from the transmission antenna of a different one of the plural antenna pairs different from the one antenna pair directly arrives as an unnecessary wave at the reception antenna of the one antenna pair; a demodulation functional unit provided corresponding to each of the antenna pairs for demodulating a modulation signal received by the reception antenna; and a transmission characteristic correction unit for carrying out correction calculation based on a transmission characteristic of a transmission space between the transmission antennae and the reception antennae based on demodulation signals demodulated by the demodulation functional units corresponding to the reception antennae to acquire an output signal corresponding to a transmission subject signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A wireless communication device for a system which includes a plurality of antenna pairs each formed from a combination of a transmission antenna and a reception antenna which correspond to each other, comprising:
a transmission characteristic correction unit for carrying out, based on demodulation signals individually corresponding to the reception antennae configured such that a wireless signal transmitted from the transmission antenna of one of the plural antenna pairs directly arrives as a desired wave at the reception antenna of the one antenna pair and a wireless signal transmitted from the transmission antenna of a different one of the plural antenna pairs different from the one antenna pair directly arrives as an unnecessary wave at the reception antenna of the one antenna pair, correction calculation based on a transmission characteristic of a transmission space between the transmission antennae and the reception antennae to acquire an output signal corresponding to a transmission subject signal. - View Dependent Claims (18, 19)
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20. A wireless transmission method for a system which includes a plurality of antenna pairs each formed from a combination of a transmission antenna and a reception antenna which correspond to each other and arranged such that a wireless signal transmitted from the transmission antenna of one of the plural antenna pairs directly arrives as a desired wave at the reception antenna of the one antenna pair and a wireless signal transmitted from the transmission antenna of a different one of the plural antenna pairs different from the one antenna pair directly arrives as an unnecessary wave at the reception antenna of the one antenna pair, the wireless transmission method comprising the steps of:
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carrying out wireless transmission of modulation signals by space division multiplexing from the transmission antennae; and carried out by a wireless communication apparatus on the reception side, receiving the modulation signals by means of the reception antennae, demodulating the received modulation signals and carrying out correction calculation based on a transmission characteristic of a transmission space between the transmission antennae and the reception antennae based on the demodulated signals corresponding to the reception antennae to acquire an output signal corresponding to a transmission subject signal.
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Specification