JP2012089936A - Radio resource conversion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve utilization efficiency of system resources.SOLUTION: A radio communication system is composed of an object station that is a line control object, which performs communication by means of a radio channel dynamically allocated by a line control station, and a radio station provided with a non-object device that is a line control non-object, which performs communication by means of a radio channel semi-permanently allocated. A radio resource conversion device coping with dynamic radio channel allocation by connecting to the non-object device comprises: a line control unit which communicates with the line control station and receives dynamic allocation from the radio channels commonly used with the object station; a resource conversion unit which performs resource conversion processing for converting at least one of a frequency and a frequency band between a first radio communication signal that the non-object device transmits or receives and a second radio communication signal which is transmitted and received using the radio channel allocated by the line control station; and a transmitting and receiving unit which transmits and receives the second radio communication signal through the radio channel allocated by the line control station.

Description

  The present invention relates to a line control station that controls allocation of radio resources (hereinafter referred to as system resources) that can be used in the entire system, and a line control target that performs communication using a radio line dynamically allocated by the line control station. In a wireless communication system comprising a wireless station (hereinafter referred to as a target station) and a wireless station that is not subject to line control (hereinafter referred to as a non-target station) that performs communication using a fixedly assigned wireless channel. The present invention relates to a radio resource conversion apparatus that is connected to a station and supports dynamic radio line assignment.

FIG. 13 shows a configuration example of a wireless communication system that performs dynamic line assignment (Non-Patent Document 1).
In FIG. 13, the line control station 11 collectively manages system resources and dynamically assigns radio lines to the target stations 12-1 to 12-N. A target station that performs wireless communication generally operates while transitioning between two states, a state where communication is actually performed (during communication) and a state where communication is not being performed (during suspension). Therefore, in order to effectively use the system resources, the line control station 11 and the target station 12 cooperate to perform dynamic line assignment so that the radio line is not assigned to the target station that is in a dormant state. Need to be implemented. That is, the line control station 11 allocates a radio line used by the target station 12 from the available system resources when the target station 12 starts communication. On the other hand, when the communication of the target station 12 is completed, the wireless line assigned to the target station 12 is released, and the resources of the opened wireless line are added to the free resources of the system resources.

FIG. 14 shows a configuration example of the target station 12. FIG. 15 shows a communication processing procedure of the target station 12.
14 and 15, the target station 12 includes a transmission / reception unit 121, a line control unit 122, a communication signal processing unit 123, and a data terminal 124. At the start of communication, transmission data is output from the data terminal 124 to the communication signal processing unit 123, and the communication signal processing unit 123 outputs a communication start request to the line control unit 122. The line control unit 122 transmits a line request signal to the line control station 11 via the transmission / reception unit 121.

  The line control station 11 transmits a line assignment signal for notifying a radio line to be assigned to the target station in response to the line request signal. The line assignment signal is received by the transmission / reception unit 121 of the target station and notified to the line control unit 122. The line control unit 122 outputs a radio resource notification to the transmission / reception unit 121 and also outputs a communication start response to the communication signal processing unit 123 to start data communication. During communication, the transmission data output from the data terminal 124 is converted into a wireless communication signal via the communication signal processing unit 123 and the transmission / reception unit 121 and transmitted to the partner station. At the end of communication, a communication end notification is output from the communication signal processing unit 123 to the line control unit 122. The line control unit 122 transmits a line release signal to the line control station 11 via the transmission / reception unit 121 and notifies the transmission / reception unit 121 of the release of radio resources.

  On the other hand, the target station 12 of the other station has the same configuration, and receives a radio communication signal transmitted via a radio line assigned to the line control station 11, converts it into received data, and outputs it to a data terminal.

“Mechanism of Satellite Communication”, Local Satellite Communication Organization (http://www.lascom.or.jp/sat/system.html)

  In order for the target station to perform line assignment control with the line control station, a line control function for transmitting a line request signal and processing the line assignment signal is required. However, the target station having the line control function is expensive, and there is a problem that the equipment cost of the entire wireless communication system becomes large. On the other hand, a non-target station that does not have a line control function is inexpensive, so that it is possible to construct a wireless communication system with reduced facility costs. However, since the non-target station does not have a line control function, it is not subject to collective management of the line control stations.

FIG. 16 shows a configuration example of the non-target station 13. FIG. 17 shows a communication processing procedure of the non-target station 13.
16 and 17, the non-target station 13 includes a transmission / reception unit 131, a radio resource setting unit 132, and a data terminal 133. The radio resource setting unit 132 outputs a radio resource notification to the transmission / reception unit 131 at a predetermined time. The data terminal 133 converts the transmission data into a wireless communication signal via the transmission / reception unit 131 and transmits it to the partner station. The radio resource setting unit 132 outputs a radio resource release to the transmission / reception unit 131 at a predetermined time, and the series of operations ends.

FIG. 18 shows a configuration example of a wireless communication system in which the target station 12 and the non-target station 13 are mixed.
In FIG. 18, the line control station 11 collectively manages system resources and dynamically assigns radio lines to the target stations 12-1 to 12-N. The non-target stations 13-1 to 13-M are not managed by the line control station 11, and are semi-fixed regardless of the usage status of radio resources that are sequentially allocated / released to the target stations 12-1 to 12-N. A wireless line is assigned. For this reason, when the system resources are simply shared by both, they interfere with each other.

  Therefore, as shown in FIG. 19, system resources used by the target stations 12-1 to 12-N and the non-target stations 13-1 to 13-M in advance are classified into the target station section and the non-target station section, for example, in the frequency domain. Separate with. The target stations 12-1 to 12 -N perform communication according to the communication flow of FIG. 15 using radio resources that are dynamically allocated from the target station classification at the start of communication. On the other hand, the non-target stations 13-1 to 13-M perform communication according to the communication flow of FIG. 17 using radio resources fixedly allocated in the non-target section.

  In such a method, although interference does not occur between the target station and the non-target station, the target station cannot use the resources in the non-target station section, and the non-target station cannot use the resources in the target station section. . At this time, for example, when the communication states of the target station and the non-target station transition as shown in FIG. 20, management of system resources is performed as shown in FIG. In other words, the non-target stations 13-1 to 13-3 occupy radio resources in a fixed manner regardless of whether they are communicating or not, while the target stations 12-1 to 12-4 Three wireless lines will be shared.

  Here, at time A to C, any one of the target stations 12-1 to 12-4 is in a dormant state, but at time D, all the target stations attempt to transition during communication. Resources in the section are insufficient, and call loss occurs in the target station 12-2. On the other hand, at time D, the non-target stations 13-1 to 13-3 are all in a dormant state and there are free radio resources, but the radio resources cannot be assigned to the target station. As described above, the conventional technique has a problem in that the use efficiency of system resources is reduced and a call loss occurs even though there are available radio resources.

  The present invention provides a radio resource converter capable of improving system resource utilization efficiency by enabling dynamic line assignment by a line control station without changing the configuration of a non-target station that does not have a line control function. The purpose is to do.

  The present invention relates to a line control station that controls allocation of radio channels that can be used in the entire system, a target station that is subject to channel control that performs communication using a radio channel dynamically allocated by the line control station, In a wireless communication system including a wireless station having a wireless device that is not subject to line control (hereinafter referred to as a non-target device) that performs communication using a fixedly assigned wireless channel, the wireless communication system is connected to the non-target device and operates. A radio resource conversion device that supports general radio channel assignment, and a channel control unit that communicates with a channel control station and receives a dynamic allocation from a radio channel shared with a target station, and a non-target device transmits and receives A resource conversion process for converting at least one of a frequency and a frequency band between one wireless communication signal and a second wireless communication signal transmitted / received through a wireless line assigned by a line control station. Comprising a resource converting unit that performs, and a transceiver for transmitting and receiving second radio communication signals by wireless by assigning an network controller.

  In the radio resource conversion device of the present invention, the first radio communication signal is composed of one spectrum, the radio channel assigned by the channel control station is composed of a plurality of spectrums, and the resource conversion unit has one spectrum on the transmission side. A configuration in which processing for dividing a first wireless communication signal composed of a spectrum into a plurality of spectra is performed, and processing for synthesizing a plurality of spectra into a first wireless communication signal composed of one spectrum is performed on the receiving side It is.

  In the radio resource conversion device of the present invention, the total frequency band of the radio channel assigned by the channel control station has a frequency band narrower than the frequency band of the first radio communication signal, and the resource conversion unit The frequency band of one radio communication signal is compressed according to the total frequency band of the radio channel assigned by the line control station, and on the receiving side, the frequency band of the radio channel assigned by the line control station is set to the first frequency band. It is the structure which performs the process expanded according to the frequency band of this radio | wireless communication signal.

  In the radio resource conversion device of the present invention, the resource conversion unit performs the second conversion according to the compression ratio of the frequency band in the compression when performing the resource conversion process of the second radio communication signal from the first radio communication signal. In this configuration, the power of the wireless communication signal is increased.

  In the radio resource conversion apparatus of the present invention, one or more of the frequency, frequency band, modulation scheme, modulation rate, coding scheme, and coding rate of the first radio communication signal are not targeted based on the allocation of the line control station. A device setting unit for setting the device is provided.

  The radio resource conversion apparatus according to the present invention can perform dynamic channel assignment of radio channels by a channel control station together with a target station. Thus, by connecting the radio resource conversion device of the present invention to a non-target device (non-target station) that does not have a line control function, it is possible to change the line without changing the configuration of the non-target device (non-target station). It is possible to deal with dynamic line assignment by the control station. Therefore, the radio communication system including the radio resource conversion apparatus can effectively use radio resources that can be used in the entire radio communication system by collective management by the line control station. In addition, since there are few restrictions on non-target stations, it is possible to construct an inexpensive wireless communication system with good expandability and convenience.

  Further, according to the present invention, since one spectrum transmitted / received by a non-target device can be divided and transmitted into a plurality of spectrums, radio resources can be effectively used even when free frequency bands are finely scattered. .

  Furthermore, according to the present invention, even when the vacant frequency band is narrower than the frequency band of the radio signal transmitted / received by the non-target device, the frequency band can be compressed and transmitted / received, so that radio resources can be used more effectively.

It is a figure which shows the structural example of the radio | wireless communications system using the radio | wireless resource conversion apparatus of this invention. It is a figure which shows the allocation radio | wireless line of a target station and a radio | wireless resource conversion apparatus (non-target apparatus). It is a figure which shows the structural example 1 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. FIG. It is a figure which shows the communication processing procedure 1 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. FIG. It is a figure which shows the communication processing procedure 2 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. It is a figure which shows the communication processing procedure 3 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. FIG. It is a figure which shows the structural example 2 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. It is a figure which shows the communication processing procedure 4 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. It is a figure which shows the structural example 3 of the non-target apparatus 130 and the radio | wireless resource conversion apparatus 14. It is a figure which shows the communication processing procedure 5 of the non-target apparatus 130 and the radio | wireless resource converter 14. It is a figure which shows the example of management of the system resource in this invention. 6 is a diagram illustrating an example of radio resource conversion in the radio resource conversion device 14. FIG. It is a figure which shows the structural example of the radio | wireless communications system which performs dynamic line allocation. 3 is a diagram illustrating a configuration example of a target station 12. FIG. It is a figure which shows the communication processing procedure of the object station. 3 is a diagram illustrating a configuration example of a non-target station 13. FIG. FIG. 6 is a diagram showing a communication processing procedure of a non-target station 13. It is a figure which shows the structural example of the radio | wireless communications system in which the target station 12 and the non-target station 13 are mixed. It is a figure which shows the allocation radio | wireless line of a target station and a non-target station. It is a figure which shows the communication state of a target station and a non-target station. It is a figure which shows the example of management of the conventional system resource.

FIG. 1 shows a configuration example of a radio communication system using the radio resource conversion apparatus of the present invention.
In FIG. 1, a line control station 11 collectively manages system resources, and dynamically assigns radio lines to target stations 12-1 to 12-N and radio resource converters 14-1 to 14-M. The radio resource conversion devices 14-1 to 14-M are connected to non-target devices 130-1 to 130-M to which semi-fixed radio channels are respectively assigned, and semi-fixed allocation radio channels and radios are assigned to the non-target devices. In this configuration, the resource conversion device performs a conversion process with a dynamically allocated radio channel. That is, as shown in FIG. 2, each non-target device is assigned a semi-fixed radio channel in the same manner as a conventional non-target station, while being converted into a dynamically allocated radio channel via a radio resource conversion device. Therefore, system resources can be shared between the target station and the non-target device.

FIG. 3 shows a configuration example 1 of the non-target device 130 and the radio resource conversion device 14. FIG. 4 shows a communication processing procedure of the non-target device 130 and the radio resource conversion device 14.
3 and 4, the non-target device 130 includes a transmission / reception unit 131 and a radio resource setting unit 132 that do not include a radio antenna in the conventional non-target station 13. The radio resource conversion device 14 includes a transmission / reception unit 141, a line control unit 142, a resource conversion unit 143, and an interface unit 144.

(1) Communication start The radio resource setting unit 132 of the non-target device 130 sends one or more of frequency, frequency band, modulation method, coding method, coding rate, and modulation rate to the transmission / reception unit 131 at a predetermined time. The radio resource notification is output. Transmission data output from the data terminal 133 is converted into a wireless communication signal via the transmission / reception unit 131 and output to the interface unit 144 of the wireless resource conversion device 14. When receiving the first wireless communication signal from the non-target device 130, the interface unit 144 of the wireless resource conversion device 14 outputs a communication start request to the line control unit 142. The line control unit 142 transmits a line request signal to the line control station 11 via the transmission / reception unit 141.

  The line control station 11 transmits a line assignment signal for notifying a radio line to be assigned to the radio resource conversion device according to the line request signal. The line assignment signal is received by the transmission / reception unit 141 of the radio resource conversion device 14 and notified to the line control unit 142. The line control unit 142 notifies the resource conversion unit 143 of the radio resource notification of the allocated line, and notifies the interface unit 144 of a communication start response. Thereafter, the non-target device 130 starts communication on the radio channel set by the radio resource setting unit 132, but converts to a radio channel assigned by the channel control station 11 via the radio resource conversion device 14 and communicates. Will start.

(2) During communication Transmission data output from the data terminal 134 is converted into a wireless communication signal via the transmission / reception unit 131 and input to the interface unit 144 of the wireless resource conversion device 14. The resource conversion unit 143 of the radio resource conversion device 14 converts the radio communication signal input to the interface unit 144 into a radio channel assigned to the channel control station 11 and transmits the radio channel to the partner station via the transmission / reception unit 141. By such radio resource conversion, the non-target device 130 can perform communication by converting to a radio line assigned by the line control station 11 regardless of which radio line is used.

(3) Communication end When the interface unit 144 of the wireless resource conversion device 14 does not receive a wireless communication signal from the non-target device 130 for a certain period, it transmits a communication end notification to the line control unit 142. The line control unit 142 transmits a line release signal to the line control station 11 via the transmission / reception unit 141 and notifies the resource conversion unit 143 of the radio resource release. In addition, the radio resource setting unit 132 of the non-target device 130 outputs a radio resource release to the transmission / reception unit 131 at a predetermined time, and a series of operations ends.

  As described above, according to the present invention, the radio resource conversion device 14 performs all functions necessary for dynamic line allocation without changing the configurations of the transmission / reception unit 131 and the radio resource setting unit 132 of the non-target device 130. In the communication flow described above, in response to transmission data generation of the non-target device 130, the line control unit 142 of the radio resource conversion device 14 performs (i) transmission of a line request signal, (ii) reception of a line assignment signal, (iii) A radio resource notification to the resource conversion unit 143 is automatically performed. On the other hand, as shown in FIG. 5, the present invention may be a method in which (i) and (ii) are not performed and (iii) is performed manually. In this case, radio resource release is also performed manually. Further, as shown in FIG. 6, a method of performing (iii) according to an instruction from the line control station 11 may be used.

  In addition, as shown in FIG. 7, instead of the radio resource setting unit 132 of the non-target device 130, the radio resource conversion device 14 includes a non-target device setting unit 145. As shown in FIG. The line control unit 142 that has received the line assignment signal may notify the non-target device setting unit 145 of the radio resource used by the non-target device, and the non-target device setting unit 145 may notify the transmission / reception unit 131 of the radio resource. In this case, the line control unit 142 also performs the radio resource release of the transmission / reception unit 131 through the non-target device setting unit 145.

  As shown in FIG. 9, the line control unit 142 monitors transmission data transmitted from the data terminal 133. As shown in FIG. A method of notifying a radio resource to the transmission / reception unit 131 via the non-target device setting unit 145 may be used.

  Alternatively, a method may be used in which information on the requested speed of the line is given to the line request signal, the radio resource satisfying the requested speed is determined by the line control station 11, and the radio resource is stored in the line assignment signal. The request speed at this time may be a method of automatically deriving from the transmission data generation amount of the non-target device 130.

  Further, in the above communication flow, the data transmission from the non-target device 130 toward the partner station is described for simplicity. However, in the case of data reception in the reverse direction, the wireless communication signal of the partner station received by the transceiver 141 Is converted to a wireless line of the non-target device 130 by the resource conversion unit 143 and then transmitted to the transmission / reception unit 131 of the non-target device 130 via the interface unit 144.

  Or in this invention, the radio | wireless resource converter which implements the data transmission from the non-target apparatus 130 to a partner station direction, or the radio | wireless resource converter which performs the data reception from the partner station to the non-target apparatus 130 may be sufficient. In this case, the former can be used as a transmitting station in broadcast communication, and the latter can be used as a receiving station in broadcast communication.

  The radio resource conversion device 14 connected to the non-target device 130 of the counterpart station also has the same configuration, and receives a radio communication signal transmitted via a radio channel assigned to the channel control station 11 and The communication signal is converted into a wireless line of the non-target device 130 and transmitted, and the non-target device 130 receives the wireless communication signal and outputs received data to the data terminal.

FIG. 11 shows an example of management of system resources in the present invention.
In the radio communication system using the radio resource conversion device 14 of the present invention, fixed radio resources used in the non-target devices 130-1 to 130-3 are converted by the radio resource conversion devices 14-1 to 14-M, and the target The four radio lines are shared with the stations 12-1 to 12-4. Here, although an example corresponding to the conventional FIG. 21 is shown, the non-target device 130-2 communicates via the radio resource conversion device 14-2 with the radio resource free at time B, and the radio resource free at time C Then, the target station 12-4 can communicate, and the target station 12-2 can communicate with the radio resources that are vacant at time D. That is, in the radio resource conversion apparatus 14 connected to the target station 12 and the non-target apparatus 130, radio resources are dynamically allocated only during communication, so that there are fewer free resources in the system resources and the system resources themselves. Can be reduced, and resource utilization efficiency can be improved.

FIG. 12 shows a radio resource conversion example (on the transmission side) in the radio resource conversion device 14. Note that the receiving side performs reverse resource conversion processing.
FIG. 12 (1) shows an example in which a fixed radio signal used by the non-target device 130 is frequency-converted and resource-converted to a radio channel having a different frequency assigned to the radio resource converter 14.

  FIG. 12 (2) shows an example in which a fixed radio signal used by the non-target device 130 is divided into a plurality of frequency bands and frequency-converted, and resource conversion is performed to a radio channel assigned to the radio resource conversion device 14. Indicates.

  FIG. 12 (3) shows an example in which a fixed radio signal used by the non-target device 130 is subjected to frequency conversion and frequency band compression, and resource conversion is performed to a radio channel assigned to the radio resource conversion device 14. Since the frequency band assigned to the radio resource conversion device 14 is smaller than the frequency band of the fixed radio signal used by the non-target device 130, a part of the frequency band is deleted and converted. At this time, by amplifying the power, it is possible to mitigate signal quality degradation accompanying frequency band reduction.

  FIG. 12 (4) combines FIG. 12 (2) and FIG. 12 (3), performs division into a plurality of frequency bands, compression of frequency bands, and frequency conversion, and a radio line assigned to the radio resource conversion apparatus 14 Shows an example of resource conversion and power increase.

  As a technology for realizing FIG. 12 (2), the literature (Junichi Abe, Fumihiro Yamashita, Kiyoshi Kobayashi, proposal of spectrum-editing band-distributed transmission to achieve high frequency utilization efficiency, IEICE Satellite Communications Research Group SAT2009 As shown in -48), it is preferable to directly divide the spectrum of the signal with a filter in the frequency domain. In addition, as a technology for realizing FIG. 12 (3), literature (Junichi Abe, Satoshi Masuno, Fumihiro Yamashita, Katsuya Nakahira, Kiyoshi Kobayashi, a study of the occupied bandwidth reduction method in spectrum-edited band dispersion transmission, electronic information communication A method of directly dividing a signal spectrum by a frequency domain filter and removing a part thereof is also preferable, as shown in Academic Society Society B-3-26).

  Here, when the radio resource conversion as shown in FIGS. 12 (2), (3), and (4) occurs, a large number of terminal stations (target stations and non-target devices) existing in the radio communication system are separated. An FDMA (Frequency Division multiple access) system in which a frequency is used for this purpose and one line is composed of a plurality of carriers will be described as an example.

When line allocation and line release are repeated in the FDMA system, the system resource vacant bands are discontinuously arranged on the frequency axis. In satellite communication and cellular communication in which all terminal stations communicate via a single node station, system resources are limited by the upper limit band and upper limit power of the node station. Therefore, the line control station of the FDMA system makes effective use of system resources by adjusting and assigning the number of carriers for each line, the frequency band for each carrier, the center frequency for each carrier, and the power for each carrier. Also in the radio resource converter in the present invention,
(1) Frequency conversion of one spectrum (Fig. 12 (1))
(2) Frequency conversion by dividing one spectrum into two or more (Fig. 12 (2), Fig. 12 (4))
(3) Frequency conversion by deleting a part of one spectrum (Fig. 12 (3), Fig. 12 (4))
Can respond.

  Further, the present invention provides a CDMA (Code Division Multiple Access) system if information that is a combination of frequency, spreading code, and time is used as a terminal-specific allocation element instead of the above-mentioned frequency. , TDMA (Time Division Multiple Access) system, or a combination of these.

DESCRIPTION OF SYMBOLS 11 Line control station 12 Target station 121 Transmission / reception part 122 Line control part 123 Communication signal processing part 124 Data terminal 13 Non-target station 130 Non-target apparatus 131 Transmission / reception part 132 Radio resource setting part 133 Data terminal 14 Radio resource conversion apparatus 141 Transmission / reception part 142 Line control unit 143 Resource conversion unit 144 Interface unit 145 Non-target device setting unit

Claims (5)

A line control station that controls allocation of radio channels that can be used in the entire system, and a radio station that is subject to line control (hereinafter referred to as a target station) that performs communication using a radio channel dynamically allocated by the channel control station. In a wireless communication system including a wireless station including a wireless device that is not subject to line control (hereinafter referred to as a non-target device) that performs communication using a semi- fixedly assigned wireless line,
A radio resource conversion device that is connected to the non-target device and supports dynamic radio line assignment,
A line control unit that communicates with the line control station and receives a dynamic assignment from a radio line shared with the target station;
Resource conversion for converting at least one of a frequency and a frequency band between a first wireless communication signal transmitted / received by the non-target device and a second wireless communication signal transmitted / received by a wireless line assigned by the line control station A resource conversion unit for processing;
A radio resource conversion apparatus comprising: a transmission / reception unit configured to transmit / receive the second radio communication signal through a radio channel assigned by the channel control station. In the radio | wireless resource converter of Claim 1,
The first wireless communication signal is composed of one spectrum,
The radio line assigned by the line control station is composed of a plurality of spectrums,
The resource conversion unit performs a process of dividing the first wireless communication signal configured by the one spectrum into the plurality of spectrums on the transmission side, and converts the plurality of spectra into the one spectrum on the reception side. A radio resource conversion device, characterized in that it is configured to perform a process of combining with a configured first radio communication signal. In the radio | wireless resource converter of Claim 1 or Claim 2,
The total frequency band of the radio line by the assignment of the line control station has a frequency band narrower than the frequency band of the first radio communication signal,
The resource conversion unit performs a process of compressing the frequency band of the first radio communication signal on the transmission side according to the total frequency band of the radio line assigned by the line control station, and on the reception side, the line A radio resource conversion device, characterized in that it is configured to perform a process of extending a frequency band of a radio channel assigned by a control station in accordance with a frequency band of the first radio communication signal. In the radio | wireless resource conversion apparatus of Claim 3,
The resource conversion unit performs resource conversion processing of the second wireless communication signal from the first wireless communication signal according to the compression ratio of the frequency band in the compression. A radio resource conversion device characterized by being configured to increase power. In the radio | wireless resource converter in any one of Claims 1-4,
Based on the assignment of the line control station, one or more of the frequency, frequency band, modulation scheme, modulation rate, coding scheme, and coding rate of the first wireless communication signal is set for the non-target device. A radio resource conversion device comprising a device setting unit.

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