Radio communications system, radio communications method and radio communications device used in a radio communications system
First Claim
Patent Images
1. A radio communications system, including a plurality of radio communications devices, each of the radio communications devices comprising:
- a receiving unit receiving a radio signal;
a detector detecting a difference between a predetermined reference level and a receiving level of the radio signal received by said receiving unit; and
a transmitting unit outputting a radio signal, which is same signal as that received by said receiving unit, at a transmitting level such that the difference detected by said detector is zero.
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Abstract
A radio network is composed of a plurality of communications chips. The communications areas of the communications chips overlap one another. A gateway connects the radio network to another network and manages the radio network. When a radio signal is transmitted from a terminal device, each communications chip generates and outputs a corresponding radio signal in order that the signal level of the radio signal becomes a prescribed level. In this way, radio signals transmitted from a terminal device are propagated all over the area of the radio network.
41 Citations
33 Claims
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1. A radio communications system, including a plurality of radio communications devices, each of the radio communications devices comprising:
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a receiving unit receiving a radio signal;
a detector detecting a difference between a predetermined reference level and a receiving level of the radio signal received by said receiving unit; and
a transmitting unit outputting a radio signal, which is same signal as that received by said receiving unit, at a transmitting level such that the difference detected by said detector is zero. - View Dependent Claims (2)
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3. A radio communications system including a plurality of radio communications devices, wherein
each of the radio communications devices compensates for a signal level of a radio signal, and wherein the plurality of radio communications devices provides a radio space-shared bus to propagate a radio signal from a terminal device all over a communications area established by the plurality of radio communications devices.
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4. A radio communications system for establishing a high-speed radio access network, wherein
a plurality of pico-nets are provided, and wherein transmitting power of each of the pico-nets is reduced to a level where no interference occurs between the plurality of pico-nets, and wherein communication band of each of the pico-nets is broadened.
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11. A radio communications method for transmitting data using a radio communications system including a plurality of radio communications devices, comprising:
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transmitting a radio signal from a first terminal device;
detecting by each of the radio communications device a receiving level of the radio signal;
outputting by each of the radio communication device a radio signal, which is same signal as the received signal, at a transmitting level such that the difference level detected by said detector is zero; and
receiving by a second terminal the radio signal from one or more radio communications devices among the plurality of radio communications devices.
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12. A radio communications device used in a radio communications system including a plurality of radio communications devices, comprising:
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a receiving unit receiving a radio signal;
a detector detecting a difference between a predetermined reference level and a receiving level of the radio signal received by said receiving unit; and
a transmitting unit outputting a radio signal, which is same signal as that received by said receiving unit, at a transmitting level such that the difference detected by said detector is zero. - View Dependent Claims (13, 14, 15, 16)
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17. A radio communications device used in a radio communications system including a plurality of radio communications devices, comprising:
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a receiving unit receiving a radio signal;
a pair of a signal line processing unit and a ground line processing unit that have the same configuration for processing the signal received by said receiving unit;
a differential circuit outputting a difference between output of the signal line processing unit and output of the ground line processing unit;
a detector detecting a difference between a predetermined reference level and an output of said differential circuit; and
a transmitting unit outputting a radio signal, which is same signal as that received by said receiving unit, at a transmitting level such that the output of said detector is zero.
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- 18. A communications device, which is provided with a receiving antenna and a transmitting antenna, and outputs a signal via the transmitting antenna, a phase of which being same as that of a received signal, in order to compensate for a signal level in such a way that a receiving power of a received signal received via the receiving antenna becomes a predetermined reference value.
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24. A communications system including a plurality of communications devices, wherein
each of the communications device, provided with a receiving antenna and a transmitting antenna, outputs a signal via the transmitting antenna, a phase of which being same as that of a received signal, in order to compensate for a signal level in such a way that a receiving power of a received signal received via the receiving antenna becomes a predetermined reference value, and wherein a space-shared bus is established by installing the plurality of communication chips at intervals of 10 meters or less.
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33. A fluorescent lamp in which a radio communications device is installed, the radio communication device being used in a system including a plurality of radio communications devices, the radio communication device comprising:
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a receiving unit receiving a radio signal;
a detector detecting a difference between a predetermined reference level and a receiving level of the radio signal received by said receiving unit; and
a transmitting unit outputting a radio signal, which is same signal as that received by said receiving unit, at a transmitting level such that the difference detected by said detector is zero.
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Specification