COMMUNICATION SYSTEM, MAIN UNIT, RADIO ACCESS UNIT AND COMMUNICATION METHOD
First Claim
1. A communication system comprising a radio base station apparatus, a main unit connected to the radio base station apparatus and a network, and a plurality of radio access units connected to the main unit, wherein:
- the radio base station apparatus is configured to output a downlink signal of a first communication system to the main unit;
the main unit is configured to output the downlink signal of the first communication system received from the radio base station apparatus and a downlink signal of a second communication system received from the network to each of the plurality of radio access units; and
the plurality of radio access units are configured to define a single cell of the first communication system;
each of the plurality of radio access units is configured to define a multiple cell of the second communication system in the single cell, to transmit the downlink signal of the first communication system received from the main unit to a terminal that uses the first communication system in the single cell, to performs wired protocol signal processing and then wireless protocol signal processing on the downlink signal of the second communication system received from the main unit to generate a resultant signal, and to transmit the resultant signal to a terminal that uses the second communication system in the multiple cell.
2 Assignments
0 Petitions
Accused Products
Abstract
A plurality of radio access units (108-1 to 108-n) form the single cell (#120) of a first communication system, while forming respective individual multi-cells (#130-1 to #130-n) of a second communication system within the single cell (#120). The plurality of radio access units (108-1 to 108-n) transmit a downstream signal of the first communication system input from a main unit (107) to a terminal using the first communication system of the single cell (#120), while each transmitting a downstream signal of the second communication system input from the main unit (107) to a terminal using the second communication system of the corresponding respective one of the multi-cells (#130-1 to #130-n).
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Citations
20 Claims
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1. A communication system comprising a radio base station apparatus, a main unit connected to the radio base station apparatus and a network, and a plurality of radio access units connected to the main unit, wherein:
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the radio base station apparatus is configured to output a downlink signal of a first communication system to the main unit; the main unit is configured to output the downlink signal of the first communication system received from the radio base station apparatus and a downlink signal of a second communication system received from the network to each of the plurality of radio access units; and the plurality of radio access units are configured to define a single cell of the first communication system; each of the plurality of radio access units is configured to define a multiple cell of the second communication system in the single cell, to transmit the downlink signal of the first communication system received from the main unit to a terminal that uses the first communication system in the single cell, to performs wired protocol signal processing and then wireless protocol signal processing on the downlink signal of the second communication system received from the main unit to generate a resultant signal, and to transmit the resultant signal to a terminal that uses the second communication system in the multiple cell. - View Dependent Claims (2, 3)
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4. A communication system comprising a radio base station apparatus, a main unit connected to the radio base station apparatus and a network, and a plurality of radio access units connected to the main unit, wherein:
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the plurality of radio access units are further configured to define a single cell of a first communication system; each of the plurality of radio access units is further configured to define a multiple cell of a second communication system in the single cell, to output an uplink signal of the first communication system received from a terminal that uses the first communication system in the single cell to the main unit, to perform wireless protocol signal processing and then wired protocol signal processing on an uplink signal of the second communication system received from a terminal that uses the second communication system in the multiple cell to generate a resultant signal, and to output the resultant signal to the main unit; the main unit is further configured to synthesize the uplink signals of the first communication system received from the plurality of radio access units, to output the synthesized signal to the radio base station apparatus, and to output the uplink signals of the second communication system received from the plurality of radio access units to the network; and the radio base station apparatus configured to acquire the synthesized uplink signal of the first communication system from the main unit. - View Dependent Claims (5, 6)
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7. A main unit comprising:
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a splitting section configured to split a received downlink signal of a first communication system into a plurality of downlink signals of the first communication system; and a multiplexing section configured to multiplex each of the downlink signals of the first communication system split in the splitting section with a received downlink signal of a second communication system into a first multiplexed signal, and to output the first multiplexed signal. - View Dependent Claims (8, 9)
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10. A main unit comprising:
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a demultiplexing section configured to acquire a plurality of first multiplexed signals in each of which an uplink signal of a first communication system and an uplink signal of a second communication system are multiplexed, to demultiplex each of the acquired first multiplexed signals into the uplink signal of the first communication system and the uplink signal of the second communication system, and to output the demultiplexed uplink signal of the second communication system; and a synthesis section configured to synthesize the uplink signals of the first communication system demultiplexed in the demultiplexing section, and to output the synthesized signal. - View Dependent Claims (11, 12)
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13. A radio access unit comprising:
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an acquiring section configured to acquire a downlink signal of a first communication system and a downlink signal of a second communication system; a protocol processing section configured to perform wired protocol signal processing and then wireless protocol signal processing on the downlink signal of the second communication system acquired in the acquiring section; and a transmitting section configured to transmit the downlink signal of the first communication system acquired in the acquiring section to a terminal that uses the first communication system in a single cell of the first communication system, the single cell being defined by the radio access unit and the other radio access units, and to transmit the downlink signal of the second communication system which is subjected to the wireless protocol signal processing in the protocol processing section, to a terminal that uses the second communication system in a multiple cell of the second communication system, the multiple cell being defined in the single cell. - View Dependent Claims (14, 15)
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16. A radio access unit comprising:
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a receiving section configured to receive an uplink signal of a first communication system from a terminal that uses the first communication system in a single cell of the first communication system, the single cell being defined by the radio access unit and the other radio access units, and to receive an uplink signal of a second communication system from a terminal that uses the second communication system in a multiple cell of the second communication system, the multiple cell being defined in the single cell; a protocol processing section configured to perform wireless protocol signal processing and then wired protocol signal processing on the uplink signal of the second communication system received in the receiving section; and an outputting section configured to output the uplink signal of the first communication system received in the receiving section and the uplink signal of the second communication system which is subjected to the wired protocol signal processing in the protocol processing section. - View Dependent Claims (17, 18)
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19. A communication method in a communication system comprising a radio base station apparatus, a main unit connected to the radio base station apparatus and a network, and a plurality of radio access units connected to the main unit, the method comprising the steps of:
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outputting, from the radio base station apparatus, a downlink signal of a first communication system to the main unit; outputting, from the main unit, the downlink signal of the first communication system received from the radio base station apparatus and a downlink signal of a second communication system received from the network to each of the plurality of radio access units; defining a single cell of the first communication system by the plurality of radio access units, each of the plurality of radio access units defining a multiple cell of the second communication system in the single cell; transmitting, from each of the radio access units, the downlink signal of the first communication system received from the main unit to a terminal that uses the first communication system in the single cell; performing, by each of the radio access units, wired protocol signal processing and then wireless protocol signal processing on the downlink signal of the second communication system received from the main unit, to generate a resultant signal; and transmitting, from each of the radio access units, the resultant signal, to a terminal that uses the second communication system in the multiple cell.
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20. A communication method in a communication system comprising a radio base station apparatus, a main unit connected to the radio base station apparatus and a network, and a plurality of radio access units connected to the main unit, the method comprising the steps of:
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defining a single cell of a first communication system by the plurality of radio access units, each of the plurality of radio access units defining a multiple cell of a second communication system in the single cell; outputting, from each of the radio access units, an uplink signal of the first communication system received from a terminal that uses the first communication system in the single cell to the main unit; performing, by each of the radio access units, wired protocol signal processing and then wireless protocol signal processing on an uplink signal of the second communication system received from a terminal that uses the second communication system in the multiple cell, to generate a resultant signal; outputting, from each of the radio access units, the resultant signal to the main unit; synsethizing, by the main unit, the uplink signals of the first communication system received from the plurality of radio access units, outputting, from the main unit, the synthesized signal to the radio base station apparatus, outputting, from the main unit, the uplink signals of the second communication system received from the plurality of radio access units to the network; and acquiring the synthesized uplink signal of the first communication system from the main unit by the radio base station apparatus.
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Specification