Wireless communication terminal and method for controlling power and using channel by adjusting channel bandwidth of wireless communication terminal
First Claim
1. A wireless communication terminal which generates a plurality of channels by dividing at least part of a frequency band for ultra-wideband communications into a plurality of frequency bands, the wireless communication terminal comprising:
- a transmission circuit and a reception circuit which respectively transmit and receive a chaotic signal having a plurality of frequency components in a channel of the plurality of channels channels, anda channel changing circuit which adjusts a frequency bandwidth which forms the channel when a certain condition is satisfied.
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Accused Products
Abstract
A wireless communication terminal and a method for controlling power and using a channel by adjusting a channel bandwidth of the wireless communication terminal. The wireless communication terminal generates a plurality of channels by dividing at least part of a frequency band for ultra-wideband communications to a plurality of frequency bands, receives a chaotic signal having a plurality of frequency components in the channels, and adjusts a frequency bandwidth which forms the channel when a certain condition is satisfied. Accordingly, since the chaotic carrier is transmitted and received in the narrow frequency band by adjusting the frequency bandwidth, the power consumption can be reduced drastically and the high-quality communications are feasible between the portable terminal and the wireless headset in the optimized channel environment. Furthermore, a greater number of portable terminals and wireless headsets can execute the radio communications in a certain wireless communication range.
16 Citations
28 Claims
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1. A wireless communication terminal which generates a plurality of channels by dividing at least part of a frequency band for ultra-wideband communications into a plurality of frequency bands, the wireless communication terminal comprising:
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a transmission circuit and a reception circuit which respectively transmit and receive a chaotic signal having a plurality of frequency components in a channel of the plurality of channels channels, and a channel changing circuit which adjusts a frequency bandwidth which forms the channel when a certain condition is satisfied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A channel bandwidth adjusting method of a wireless communication terminal, the method comprising:
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generating a plurality of channels by dividing at least part of a frequency band for ultra-wideband communications to a plurality of frequency bands, and transmitting a chaotic signal having a plurality of frequency components in a channel of the plurality of channels; determining communication state of the channel by detecting energy of the chaotic signal; determining whether to change a frequency bandwidth in the channel according to the channel communication state; and transmitting and receiving the chaotic signal in a certain frequency band of the channel. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification