TRANSMITTING APPARATUS, TRANSMITTING METHOD, AND TRANSMITTING PROGRAM

Abstract

To provide a transmitter, a transmission method, and a program for transmission that enable early start of transmission using a rated transmission power while reducing unnecessary radiation.SOLUTION: A transmitter 10 comprises: a power amplifier section 11 for amplifying power of an input signal; a distortion compensation section 12 for applying distortion compensation processing to the input signal based on an output signal from the power amplifier section 11; a relay section 13 for relaying the output signal output from the power amplifier section 11 to a destination; a control section 14 for, when frequency components without a transmission frequency band included in the output signal meet a predetermined condition, allowing the relay section 13 to start relaying the output signal to the destination.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a transmitting device, a transmitting method, and a transmitting program. [Background technology]

[0002] A transmitter that transmits broadcast waves amplifies the power of a transmission signal using a power amplifier, and transmits the amplified transmission signal from an antenna. The signal output from the power amplifier contains distortion caused by the characteristics of the power amplifier. The distortion is also called IM (Inter Modulation). Frequency components that occur outside the transmission frequency band of the broadcast waves transmitted by the transmitter due to this distortion are called unwanted radiation or out-of-band noise. Moreover, reducing the distortion of the signal output from the power amplifier is called distortion compensation.

[0003] One example of a distortion compensation method is Digital Pre-Distortion (DPD) (Patent Document 1). In this method, a DPD provided in a stage preceding a power amplifier performs distortion compensation on an input signal to the power amplifier based on feedback of the output signal of the power amplifier, thereby reducing distortion in the output signal from the power amplifier.

[0004] However, when the transmitter starts to output broadcast waves, the power of the output signal from the power amplifier increases suddenly, and the DPD cannot keep up with the increase in power, which can result in unwanted radiation. To reduce this unwanted radiation, for example, there is a method of controlling the power amplifier so that the transmission power increases slowly so that the DPD can keep up with the increase in power. Another method is to place a channel filter between the power amplifier and the antenna, which cuts off frequency components outside the transmission frequency band. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 05-244206 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when the transmission power is increased slowly, it takes time for the transmission power to reach the rated value. Also, when the transmission power is increased by a predetermined increment, it is unclear whether the unwanted radiation is actually reduced.

[0007] In addition, in portable devices such as FPUs (Field Pickup Units: wireless transmission repeater devices), the transmission frequency band is not fixed but may be variable. In such cases, the transmitter may not be provided with a channel filter.

[0008] An object of the present invention is to provide a transmitting device, a transmitting method, and a transmitting program that enable early start of transmission at rated transmission power while suppressing unnecessary radiation. [Means for solving the problem]

[0009] In one aspect of the present invention, a transmitting device includes a power amplifier unit that amplifies the power of an input signal, a distortion compensation unit that performs distortion compensation processing on the input signal based on an output signal from the power amplifier unit, a relay unit that relays the output signal output from the power amplifier unit to a destination, and a control unit that causes the relay unit to start relaying the output signal to the destination when a frequency component outside a transmission frequency band contained in the output signal satisfies a predetermined condition.

[0010] In another aspect of the present invention, a transmission method includes amplifying the power of an input signal, performing distortion compensation processing on the input signal based on an output signal from the power amplifier, and starting relaying the output signal to a destination when frequency components outside a transmission frequency band contained in the output signal output from the power amplifier satisfy predetermined conditions.

[0011] In another aspect of the present invention, the transmission program causes a computer to realize a determination function of determining whether or not a frequency component outside a transmission frequency band contained in an output signal output from a power amplifier unit that amplifies the power of an input signal and performs distortion compensation processing on the input signal based on the output signal from the power amplifier unit, and a control function of causing a relay unit that relays the output signal to a destination to start relaying when the frequency component outside the transmission frequency band contained in the output signal satisfies the condition. Effect of the Invention

[0012] According to the present invention, it is possible to start transmission at rated transmission power early while suppressing unnecessary radiation. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a diagram illustrating an example of the configuration of a transmission device according to the first and second exemplary embodiments of the present invention. [Diagram 2] FIG. 4 is a diagram illustrating an example of the operation of the transmitting device according to the first and second exemplary embodiments of the present invention. [Diagram 3] FIG. 11 is a diagram illustrating an example of the configuration of a control unit of a transmitting device according to a second embodiment of the present invention. [Figure 4] FIG. 11 is a diagram illustrating an example of the configuration of a control unit of a transmitting device according to a second embodiment of the present invention. [Diagram 5] FIG. 11 is a diagram illustrating an example of the configuration of a control unit of a transmitting device according to a second embodiment of the present invention. [Figure 6] FIG. 11 is a diagram illustrating an example of the configuration of a transmitting device according to a second embodiment of the present invention. [Figure 7] FIG. 11 is a diagram illustrating an example of the configuration of a transmitting device according to a second embodiment of the present invention. [Figure 8] FIG. 11 is a diagram illustrating an example of the operation of a transmitting device according to the second embodiment of the present invention. [Figure 9] FIG. 11 is a diagram illustrating an example of the operation of a transmitting device according to the second embodiment of the present invention. [Figure 10] FIG. 11 is a diagram illustrating an example of the operation of a transmitting device according to the second embodiment of the present invention. [Figure 11]FIG. 2 is a diagram illustrating an example of a hardware configuration according to each embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] [First embodiment] A first embodiment of the present invention will be described.

[0015] 1 shows an example of the configuration of a transmission device 10 according to this embodiment. The transmission device 10 according to this embodiment includes a power amplifier 11, a distortion compensation unit 12, a relay unit 13, and a control unit .

[0016] The power amplifier 11 amplifies the power of the input signal. The distortion compensation unit 12 performs distortion compensation processing on the input signal based on the output signal from the power amplifier 11. The relay unit 13 relays the output signal output from the power amplifier 11 to a destination. The control unit 14 causes the relay unit 13 to start relaying the output signal to a destination when a frequency component outside the transmission frequency band contained in the output signal satisfies a predetermined condition.

[0017] By configuring the transmitting device 10 in this way, the transmitting device 10 starts relaying the output signal to the destination when the frequency components outside the transmission frequency band included in the output signal from the power amplifier satisfy a predetermined condition. This allows the transmitting device 10 to start relaying the output signal to the destination as soon as the unwanted radiation is suppressed. Therefore, it becomes possible to start transmission at the rated transmission power early while suppressing the unwanted radiation.

[0018] Next, an example of the operation of the transmitting device 10 of this embodiment is shown in FIG.

[0019] When a frequency component outside the transmission frequency band contained in the output signal output from the power amplifier 11 satisfies a predetermined condition, the control unit 14 causes the relay unit 13 to start relaying the output signal to a destination (step S101).

[0020] By operating in this manner, the transmitting device 10 starts relaying the output signal to the transmission destination when the frequency components outside the transmission frequency band included in the output signal from the power amplifier satisfy a predetermined condition. This allows the output signal to be quickly relayed to the transmission destination when the unwanted radiation is suppressed. Therefore, it becomes possible to quickly start transmission at the rated transmission power while suppressing the unwanted radiation.

[0021] As described above, in the first embodiment of the present invention, the transmitting device 10 starts relaying the output signal to the transmission destination when the frequency components outside the transmission frequency band included in the output signal from the power amplifier satisfy a predetermined condition. This allows the transmitting device 10 to start relaying the output signal to the transmission destination as soon as the unwanted radiation is suppressed. Therefore, it becomes possible to start transmission at the rated transmission power early while suppressing the unwanted radiation.

[0022] [Second embodiment] Next, the transmitting device 10 according to the second embodiment of the present invention will be specifically described.

[0023] First, a configuration example of a transmission device 10 according to the present embodiment will be described with reference to FIG.

[0024] The power amplifier 11 amplifies the power of the input signal and outputs the amplified signal to the relay unit. The input signal is, for example, a signal modulated to a signal in a predetermined transmission frequency band in order to be transmitted as a broadcast wave.

[0025] The distortion compensation unit 12 performs a distortion compensation process on the power amplifier 11. The distortion compensation unit 12 is, for example, a DPD. Note that the distortion compensation method is not limited to the DPD. The distortion compensation unit 12 performs a distortion compensation process on the input signal to the power amplifier 11 based on the output signal output from the power amplifier 11.

[0026] The relay unit 13 relays the output signal output from the power amplifier unit 11 to a destination. The relay unit 13 is, for example, a relay. The destination is, for example, an antenna (not shown). The output signal output from the power amplifier unit 11 is transmitted to the outside of the transmitting device 10 as a broadcast wave via the antenna.

[0027] When a frequency component (unwanted radiation) outside the transmission frequency band included in the output signal output from the power amplifier 11 satisfies a predetermined condition, the control unit 14 causes the relay unit 13 to start relaying the output signal to the destination. More specifically, when the unwanted radiation becomes smaller than a predetermined amount, the control unit 14 causes the relay unit 13 to start relaying the output signal output from the power amplifier 11 to the destination.

[0028] Furthermore, when a relay stop instruction is input to instruct the transmission device 10 to stop outputting a signal, the control unit 14 causes the relay unit 13 to stop relaying the output signal output from the power amplifier 11 to the destination. The relay stop instruction is input, for example, in response to a user's operation on the transmission device 10 or from an alarm detection device.

[0029] The control unit 14 can detect that the unwanted radiation has become smaller than a predetermined amount, for example, by the following method.

[0030] The first method is to use a band pass filter. Fig. 3 shows a configuration example of the control unit 14 when a band pass filter is used. In the example shown in Fig. 3, the control unit 14 includes a BPF (Band Pass Filter) 41 and an out-of-band detection unit 42.

[0031] The BPF 41 is a filter that passes frequency components outside the transmission frequency band of the transmitter 10. The BPF 41 passes frequency components outside the transmission frequency band of the output signal output from the power amplifier 11. When the level of the frequency components that have passed the BPF 41 falls below a predetermined value, the out-of-band detector 42 determines that the unwanted radiation has become smaller than a predetermined amount.

[0032] The second method is to use a frequency domain representation of the output signal. For example, FFT (Fast Fourier Transform) can be used to convert the output signal into a frequency domain representation. FIG. 4 shows an example of the configuration of the control unit 14 when the frequency domain representation is used. In the example shown in FIG. 4, the control unit 14 includes an A / D 43, an FFT 44, and a level detection unit 45.

[0033] The A / D 43 converts the output signal output from the power amplifier 11, which is an analog signal, into a digital signal. The FFT 44 converts the output signal converted into a digital signal into a frequency domain representation. The level detector 45 calculates the total value (integral value) or maximum value of the levels of frequency components outside the transmission frequency band of the transmitter 10 from the frequency domain representation of the output signal output from the power amplifier 11 converted by the FFT 44. The level detector 45 determines that the unwanted radiation has become smaller than a predetermined amount when the total value or maximum value of the levels of frequency components outside the transmission frequency band falls below a predetermined value.

[0034] The third method is to demodulate the output signal output from the power amplifier 11, which is a modulated signal, and use an index indicating the quality of the demodulated output signal. Fig. 5 shows an example of the configuration of the control unit 14 when an index indicating the quality of the demodulated output signal is used. In the example shown in Fig. 5, the control unit 14 includes an A / D 46, a demodulator 47, and an index calculator 48.

[0035] The A / D 43 converts the output signal output from the power amplifier 11, which is an analog signal, into a digital signal. The demodulator 47 demodulates the output signal converted into a digital signal. The index calculator 48 calculates an index indicating the quality of the demodulated output signal based on the demodulated output signal. The index indicating the quality is, for example, MER (modulation error ratio) or C / N (carrier to noise ratio). Then, when the index indicating the quality is a value indicating better quality than a predetermined value, the index calculator 48 determines that the unwanted radiation has become smaller than a predetermined amount. For example, when the MER is smaller than a predetermined value or the C / N is larger than a predetermined value, the index calculator 48 determines that the unwanted radiation has become smaller than a predetermined amount.

[0036] In this way, the control unit 14 can detect that the unwanted radiation has been reduced. As a result, the control unit 14 can promptly cause the relay unit 13 to start relaying after the unwanted radiation has been reduced, so that the time until the relay unit 13 starts relaying can be shortened.

[0037] 6, the transmitting device 20 may include an isolator 25. The isolator 25 insulates the DC signal between the power amplifier 11 and the relay unit 13. In this case, it is possible to reduce the possibility that the output signal from the power amplifier 11 is reflected at the relay unit 13 and the power amplifier 11 is damaged while the relay unit 13 stops relaying.

[0038] 7, the transmitting device 30 may use a relay (relay unit 33) that switches between the active system and the standby system, instead of the relay unit 13. The transmitting device 30 shown in FIG. 7 includes a distortion compensation unit 12A and a power amplification unit 11A as the active system A. The transmitting device 30 also includes a distortion compensation unit 12B and a power amplification unit 11B as the standby system B. The transmitting device 30 also includes a control unit 34 instead of the control unit 14.

[0039] The relay unit 33 relays either the output signal of the power amplifier 11A or the output signal of the power amplifier 11B to the destination.

[0040] When a relay stop instruction is input to instruct the relay unit 33 to stop relaying the output signal to the destination, the control unit 34 causes the power amplifier 11B of the standby system B to stop outputting the output signal. Next, the control unit 34 causes the relay unit 33 to switch the signal that the relay unit 33 relays to the destination from the output signal output from the power amplifier 11A of the active system A to the output signal output from the power amplifier 11B of the standby system B. The control unit 34 also causes the power amplifier 11A of the active system A to stop outputting the output signal. In this way, the control unit 34 stops outputting the output signal from the power amplifier 11B of the standby system B, and then switches the signal that the relay unit 33 relays from the output signal of the active system A to the output signal of the standby system B. Therefore, the relay unit 33 is in a state where it is not relaying the signal, similar to when relaying of the signal is stopped.

[0041] Also, when an output start instruction is input from the transmitting device 10 to instruct the start of signal output, the control unit 34 causes the power amplifier 11A of the active system A to start outputting an output signal. Then, when the unwanted radiation of the output signal output from the power amplifier 11A becomes smaller than a predetermined amount, the control unit 34 causes the relay unit 33 to switch the signal relayed by the relay unit 33 to the output signal output from the power amplifier 11A of the active system A. Thereafter, the control unit 34 causes the power amplifier 11B of the standby system B to start outputting an output signal. In this way, when the unwanted radiation of the output signal output from the power amplifier 11A becomes smaller than a predetermined amount, the control unit 34 causes the relay unit 33 to start relaying the output signal output from the power amplifier 11A.

[0042] By configuring the transmitting device (10, 20, 30) in this way, the transmitting device starts relaying the output signal to the destination when the frequency components outside the transmission frequency band included in the output signal from the power amplifier satisfy a predetermined condition. This makes it possible to start relaying the output signal to the destination as soon as the unwanted radiation is suppressed. Therefore, it becomes possible to start transmission at the rated transmission power early while suppressing the unwanted radiation.

[0043] Next, an example of the operation of the transmission device 10 of this embodiment will be described with reference to Fig. 2 and Fig. 8. Fig. 8 is a diagram showing an example of the operation of the transmission device 10 of this embodiment.

[0044] When an output start instruction is input to the transmitting device 10 to instruct the start of signal output from the transmitting device 10, the transmitting device 10 starts outputting an output signal from the power amplifier 11. The output start instruction is input to the transmitting device 10, for example, in response to a user's operation on the transmitting device 10. At this point, the relay unit 13 has not relayed the output signal output from the power amplifier 11 to the destination. The power amplifier 11 amplifies and outputs the input signal that has been input. The distortion compensation unit 12 performs distortion compensation processing on the power amplifier 11.

[0045] When an output start instruction is input, the control unit 14 performs the operation shown in Fig. 2. When a frequency component outside the transmission frequency band included in the output signal output from the power amplifier 11 satisfies a predetermined condition, the control unit 14 causes the relay unit 13 to start relaying the output signal to the destination (step S101).

[0046] Furthermore, when a relay stop instruction is input, the control unit 14 causes the relay unit 13 to stop relaying the output signal output from the power amplifier 11 to the transmission destination (step S201 in FIG. 8).

[0047] 9 and 10 show an example of the operation of the transmission device 30 when a standby system is included. It is assumed that the configuration of the transmission device 30 is the configuration shown in FIG.

[0048] When the relay stop instruction is input, the control unit 34 causes the power amplifier 11B of the standby system B to stop outputting the output signal (step S301 in FIG. 9). Next, the control unit 34 causes the relay unit 33 to switch the signal relayed to the destination from the output signal output from the power amplifier 11A of the active system A to the output signal output from the power amplifier 11B of the standby system B (step S302). The control unit 34 also causes the power amplifier 11A of the active system A to stop outputting the output signal (step S303).

[0049] Furthermore, when an output start instruction is input, the control unit 34 causes the power amplifier 11A of the active system A to start outputting an output signal (step S304). Then, when the unwanted radiation of the output signal output from the power amplifier 11A becomes smaller than a predetermined amount, the control unit 34 causes the relay unit 33 to switch the signal relayed by the relay unit 33 to the output signal output from the power amplifier 11A of the active system A (step S305). After that, the control unit 34 causes the power amplifier 11B of the standby system B to start outputting an output signal (step S306).

[0050] By operating in this manner, the transmitting device starts relaying the output signal to the destination when the frequency components outside the transmission frequency band included in the output signal from the power amplifier satisfy a predetermined condition. This allows the transmitting device to start relaying the output signal to the destination as soon as the unwanted radiation is suppressed. Therefore, it becomes possible to start transmission at the rated transmission power early while suppressing the unwanted radiation.

[0051] As described above, in the second embodiment of the present invention, the transmitting device starts relaying the output signal to the destination when the frequency components outside the transmission frequency band included in the output signal from the power amplifier satisfy a predetermined condition. This allows the transmitting device to start relaying the output signal to the destination as soon as the unwanted radiation is suppressed. Therefore, it becomes possible to start transmission at the rated transmission power early while suppressing the unwanted radiation.

[0052] [Hardware configuration example] An example of the configuration of hardware resources for implementing the transmitting device (10, 20, 30) in each of the above-mentioned embodiments of the present invention using one information processing device (computer) will be described. The transmitting device may be implemented physically or functionally using at least two or more information processing devices. The transmitting device may be implemented as a dedicated device, or a general-purpose device. Only some of the functions of the transmitting device may be implemented using an information processing device.

[0053] 11 is a diagram illustrating an example of a hardware configuration of an information processing device capable of realizing the transmission device of each embodiment of the present invention. The information processing device 90 includes a communication interface 91, an input / output interface 92, a calculation device 93, a storage device 94, a non-volatile storage device 95, and a drive device 96.

[0054] For example, the control unit 14 in FIG.

[0055] The communication interface 91 is a communication means for the transmitting device of each embodiment to communicate with an external device at least in a wired or wireless manner. When the transmitting device is realized using at least two information processing devices, the devices may be connected to each other via the communication interface 91 so as to be able to communicate with each other.

[0056] The input / output interface 92 is a man-machine interface including a keyboard as an example of an input device and a display as an output device.

[0057] The arithmetic device 93 is realized by, for example, an arithmetic processing device such as a CPU (Central Processing Unit) or a microprocessor, and a plurality of electric circuits. The arithmetic device 93 can read various programs stored in, for example, a non-volatile storage device 95 into the storage device 94 and execute processing according to the read programs.

[0058] The storage device 94 is a memory device such as a RAM (Random Access Memory) that can be referenced by the arithmetic device 93, and stores programs, various data, etc. The storage device 94 may be a volatile memory device.

[0059] The non-volatile storage device 95 is, for example, a non-volatile storage device such as a ROM (Read Only Memory) or a flash memory, and is capable of storing various programs, data, and the like.

[0060] The drive device 96 is, for example, a device that processes reading and writing of data recorded on a recording medium 97, which will be described later.

[0061] The recording medium 97 is any recording medium capable of recording data, such as an optical disk, a magneto-optical disk, or a semiconductor flash memory.

[0062] Each embodiment of the present invention may be realized, for example, by configuring a transmitting device using an information processing device 90 illustrated in FIG. 11 and supplying a program capable of realizing the functions described in each of the above embodiments to this transmitting device.

[0063] In this case, the embodiment can be realized by having the arithmetic device 93 execute the program supplied to the transmitting device. Also, it is possible to configure some, but not all, of the functions of the transmitting device in the information processing device 90.

[0064] Furthermore, the program may be recorded in a recording medium 97, and may be appropriately stored in the non-volatile storage device 95 at the shipping stage or operation stage of the transmitting device. In this case, the program may be supplied by installing the program in the transmitting device using an appropriate tool at the manufacturing stage before shipping or at the operation stage. The program may also be supplied by a general procedure such as downloading the program from an external source via a communication line such as the Internet.

[0065] It should be noted that the above-described embodiments are preferred embodiments of the present invention, and various modifications can be made without departing from the spirit and scope of the present invention.

[0066] A part or all of the above-described embodiments can be described as, but is not limited to, the following supplementary notes.

[0067] (Appendix 1) a power amplifier that amplifies the power of an input signal; a distortion compensation unit that performs distortion compensation processing on the input signal based on an output signal from the power amplification unit; a relay unit that relays the output signal output from the power amplifier unit to a destination; a control unit that causes the relay unit to start relaying the output signal to the transmission destination when a frequency component outside a transmission frequency band included in the output signal satisfies a predetermined condition; A transmitting device comprising:

[0068] (Appendix 2) An isolator that isolates a DC signal between the power amplifier and the relay unit The transmitting device according to claim 1, further comprising:

[0069] (Appendix 3) The control unit causes the relay unit to start the relaying when a level of the frequency component outside the transmission frequency band of the output signal falls below a predetermined value. 3. The transmitting device according to claim 1 or 2.

[0070] (Appendix 4) The control unit causes the relay unit to start the relaying when a level of the frequency component outside the transmission frequency band in the frequency domain representation of the output signal falls below a predetermined value. 3. The transmitting device according to claim 1 or 2.

[0071] (Appendix 5) The control unit causes the relay unit to start the relaying when an index indicating a quality of the demodulated output signal becomes a value indicating that the quality is better than a predetermined value. 3. The transmitting device according to claim 1 or 2.

[0072] (Appendix 6) The control unit causes the relay unit to stop relaying the output signal to the destination when a relay stop instruction for instructing the relay to stop is input. 6. A transmitting device according to any one of claims 1 to 5.

[0073] (Appendix 7) The control unit causes the power amplifier unit to start outputting the output signal when an output start instruction for instructing the transmission device to start outputting the signal is input. 7. The transmitting device according to claim 1,

[0074] (Appendix 8) the transmitting device includes the power amplifier unit of an active system and the distortion compensation unit of an active system, and the power amplifier unit of a standby system and the distortion compensation unit of a standby system; The control unit is when a relay stop instruction for instructing to stop the relay is input, causing the power amplifier unit of the standby system to stop outputting the output signal, and causing the relay unit to switch the output signal to be relayed to the destination from the output signal output from the power amplifier unit of the working system to the output signal output from the power amplifier unit of the standby system; When an output start instruction for instructing the start of signal output from the transmitting device is input, the power amplifier unit in the active system starts outputting the output signal; When the frequency component outside the transmission frequency band included in the output signal output from the power amplifier of the working system satisfies the condition, the relay unit is caused to start relaying the output signal of the working system to the transmission destination. 6. A transmitting device according to any one of claims 1 to 5.

[0075] (Appendix 9) performing distortion compensation processing on the input signal based on an output signal from a power amplifier that amplifies the power of the input signal; When a frequency component outside a transmission frequency band included in the output signal output from the power amplifier satisfies a predetermined condition, relay of the output signal to a transmission destination is started. Transmission method.

[0076] (Appendix 10) A DC signal between the power amplifier unit and a relay unit that performs the relay is insulated. 10. The transmission method according to claim 9,

[0077] (Appendix 11) When the level of the frequency component outside the transmission frequency band of the output signal falls below a predetermined value, the relay is started. The transmission method according to claim 9 or 10,

[0078] (Appendix 12) When the level of the frequency component outside the transmission frequency band in the frequency domain representation of the output signal falls below a predetermined value, the relay is started. The transmission method according to claim 9 or 10,

[0079] (Appendix 13) When an index indicating the quality of the demodulated output signal becomes a value indicating that the quality is better than a predetermined value, the relay is started. The transmission method according to claim 9 or 10,

[0080] (Appendix 14) When a relay stop instruction for instructing the stop of the relay is input, the relay of the output signal to the transmission destination is stopped. The transmission method according to any one of Supplementary Note 9 to Supplementary Note 13,

[0081] (Appendix 15) When an output start instruction for instructing the start of signal output from a transmitting device is input, the power amplifier starts outputting the output signal. The transmission method according to any one of Supplementary Note 9 to Supplementary Note 14,

[0082] (Appendix 16) the transmitting device includes the power amplifier unit of a working system and the power amplifier unit of a standby system; when a relay stop instruction for instructing to stop the relay is input, causing the power amplifier unit of a standby system to stop outputting the output signal, and switching the output signal to be relayed to the destination from the output signal output from the power amplifier unit of a working system to the output signal output from the power amplifier unit of a standby system; When an output start instruction for instructing the start of signal output from the transmitting device is input, the power amplifier unit in the active system starts outputting the output signal; When the frequency component outside the transmission frequency band included in the output signal output from the power amplifier of the working system satisfies the condition, the relay of the output signal of the working system to the transmission destination is started. The transmission method according to any one of Supplementary Note 9 to Supplementary Note 13,

[0083] (Appendix 17) On the computer, a determination function for determining whether or not a frequency component outside a transmission frequency band included in an output signal output from a power amplifier that amplifies the power of an input signal and performs distortion compensation processing on the input signal based on the output signal from the power amplifier; and a control function of causing a relay unit that relays the output signal to a destination to start relaying when the frequency component outside the transmission frequency band included in the output signal satisfies the condition; A transmission program that realizes this.

[0084] (Appendix 18) The control function causes the relay unit to start the relaying when a level of the frequency component outside the transmission frequency band of the output signal falls below a predetermined value. 18. The transmission program according to claim 17,

[0085] (Appendix 19) The control function causes the relay unit to start the relaying when a level of the frequency component outside the transmission frequency band in the frequency domain representation of the output signal falls below a predetermined value. 19. The transmission program according to claim 17 or 18.

[0086] (Appendix 20) The control function causes the relay unit to start the relay when an index indicating a quality of the demodulated output signal becomes a value indicating that the quality is better than a predetermined value. 19. The transmission program according to claim 17 or 18.

[0087] (Appendix 21) The control function causes the relay unit to stop relaying the output signal to the destination when a relay stop instruction for instructing the relay to stop is input. 21. The transmission program according to claim 17,

[0088] (Appendix 22) The control function causes the power amplifier to start outputting the output signal when an output start instruction for instructing the start of signal output from a transmitting device is input. 22. The transmission program according to claim 17,

[0089] (Appendix 23) the transmitting device includes the power amplifier unit of a working system and the power amplifier unit of a standby system; The control function is when a relay stop instruction for instructing to stop the relay is input, causing the power amplifier unit of the standby system to stop outputting the output signal, and causing the relay unit to switch the output signal to be relayed to the destination from the output signal output from the power amplifier unit of the working system to the output signal output from the power amplifier unit of the standby system; When an output start instruction for instructing the start of signal output from the transmitting device is input, the power amplifier unit in the active system starts outputting the output signal; When the frequency component outside the transmission frequency band included in the output signal output from the power amplifier of the working system satisfies the condition, the relay unit is caused to start relaying the output signal of the working system to the transmission destination. 21. The transmission program according to claim 17, [Explanation of symbols]

[0090] 10, 20, 30 Transmitting device 11, 11A, 11B Power amplifier section 12, 12A, 12B Distortion compensation section 13, 33 Relay Section 14, 34 Control section 25 Isolator 90 Information processing equipment 91 Communication Interface 92 Input / Output Interface 93 Arithmetic unit 94 Storage device 95 Non-volatile storage devices 96 Drive device 97 Recording media

Claims

1. a power amplifier that amplifies the power of an input signal; a distortion compensation unit that performs distortion compensation processing on the input signal based on an output signal from the power amplification unit; a relay unit that relays the output signal output from the power amplifier unit to a destination; a control unit that causes the relay unit to start relaying the output signal to the transmission destination when a frequency component outside a transmission frequency band included in the output signal satisfies a predetermined condition; Equipped with The control unit causes the relay unit to stop relaying the output signal to the destination when a relay stop instruction for instructing the relay to stop is input. Transmitting device.

2. The control unit, when an output start instruction instructing the start of signal output from the transmission device is input, causes the power amplifier unit to start outputting the output signal.

2. The transmitting device according to claim 1 .

3. A power amplifier unit that amplifies the power of an input signal; a distortion compensation unit that performs distortion compensation processing on the input signal based on an output signal from the power amplification unit; a relay unit that relays the output signal output from the power amplifier unit to a destination; a control unit that causes the relay unit to start relaying the output signal to the transmission destination when a frequency component outside a transmission frequency band included in the output signal satisfies a predetermined condition; Equipped with The control unit causes the power amplifier unit to start outputting the output signal when an output start instruction for instructing a transmitter to start outputting a signal is input. Transmitting device.

4. A power amplifier section for amplifying the power of an input signal; a distortion compensation unit that performs distortion compensation processing on the input signal based on an output signal from the power amplification unit; a relay unit that relays the output signal output from the power amplifier unit to a destination; a control unit that causes the relay unit to start relaying the output signal to the transmission destination when a frequency component outside a transmission frequency band included in the output signal satisfies a predetermined condition; Equipped with a power amplifier unit for an active system and a distortion compensation unit for an active system, and a power amplifier unit for a standby system and a distortion compensation unit for a standby system, The control unit is when a relay stop instruction for instructing to stop the relay is input, causing the power amplifier unit of the standby system to stop outputting the output signal, and causing the relay unit to switch the output signal to be relayed to the destination from the output signal output from the power amplifier unit of the working system to the output signal output from the power amplifier unit of the standby system; When an output start instruction for instructing a start of signal output from a transmitting device is input, the power amplifier unit in the active system starts outputting the output signal; When the frequency component outside the transmission frequency band included in the output signal output from the power amplifier of the working system satisfies the condition, the relay unit is caused to start relaying the output signal of the working system to the transmission destination. Transmitting device.

5. An isolator that isolates a DC signal between the power amplifier and the relay unit The transmitting device according to claim 1 , further comprising:

6. The control unit causes the relay unit to start the relaying when a level of the frequency component outside the transmission frequency band of the output signal falls below a predetermined value.

6. The transmitting device according to claim 1, wherein the first and second inputs are connected to the first and second inputs.

7. The control unit causes the relay unit to start the relaying when a level of the frequency component outside the transmission frequency band in the frequency domain representation of the output signal falls below a predetermined value.

6. The transmitting device according to claim 1, wherein the first and second inputs are connected to the first and second inputs.

8. The control unit causes the relay unit to start the relaying when an index indicating a quality of the demodulated output signal becomes a value indicating that the quality is better than a predetermined value.

6. The transmitting device according to claim 1, wherein the first and second inputs are connected to the first and second inputs.

9. performing distortion compensation processing on the input signal based on an output signal from a power amplifier that amplifies the power of the input signal; when a frequency component outside a transmission frequency band included in the output signal output from the power amplifier satisfies a predetermined condition, relaying the output signal to a destination is started; When a relay stop instruction for instructing the stop of the relay is input, the relay of the output signal to the transmission destination is stopped. Transmission method.

10. A distortion compensation process is performed on the input signal based on an output signal from a power amplifier that amplifies the power of the input signal, when a frequency component outside a transmission frequency band included in the output signal output from the power amplifier satisfies a predetermined condition, relaying the output signal to a destination is started; When an output start instruction for instructing the start of signal output from a transmitting device is input, the power amplifier starts outputting the output signal. Transmission method.

11. A distortion compensation process is performed on the input signal based on an output signal from a power amplifier that amplifies the power of the input signal, when a frequency component outside a transmission frequency band included in the output signal output from the power amplifier satisfies a predetermined condition, relaying the output signal to a destination is started; the transmitting device includes the power amplifier unit of a working system and the power amplifier unit of a standby system; when a relay stop instruction for instructing to stop the relay is input, causing the power amplifier unit of a standby system to stop outputting the output signal, and switching the output signal to be relayed to the destination from the output signal output from the power amplifier unit of a working system to the output signal output from the power amplifier unit of a standby system; When an output start instruction for instructing the start of signal output from the transmitting device is input, the power amplifier unit in the active system starts outputting the output signal; When the frequency component outside the transmission frequency band included in the output signal output from the power amplifier of the working system satisfies the condition, the relay of the output signal of the working system to the transmission destination is started. Transmission method.

12. On the computer, a determination function for determining whether or not a frequency component outside a transmission frequency band included in an output signal output from a power amplifier that amplifies the power of an input signal and performs distortion compensation processing on the input signal based on the output signal from the power amplifier; and a control function of causing a relay unit that relays the output signal to a destination to start relaying when the frequency component outside the transmission frequency band included in the output signal satisfies the condition; Realize this, The control function causes the relay unit to stop relaying the output signal to the destination when a relay stop instruction for instructing the relay to stop is input. Sending program.

13. A computer comprising: a determination function for determining whether or not a frequency component outside a transmission frequency band included in an output signal output from a power amplifier that amplifies the power of an input signal and performs distortion compensation processing on the input signal based on the output signal from the power amplifier; and a control function of causing a relay unit that relays the output signal to a destination to start relaying when the frequency component outside the transmission frequency band included in the output signal satisfies the condition; Realize this, The control function causes the power amplifier to start outputting the output signal when an output start instruction for instructing the start of signal output from a transmitting device is input. Sending program.

14. A computer comprising: a determination function for determining whether or not a frequency component outside a transmission frequency band included in an output signal output from a power amplifier that amplifies the power of an input signal and performs distortion compensation processing on the input signal based on the output signal from the power amplifier; and a control function of causing a relay unit that relays the output signal to a destination to start relaying when the frequency component outside the transmission frequency band included in the output signal satisfies the condition; Realize this, the transmitting device includes the power amplifier unit of a working system and the power amplifier unit of a standby system; The control function is when a relay stop instruction for instructing to stop the relay is input, causing the power amplifier unit of the standby system to stop outputting the output signal, and causing the relay unit to switch the output signal to be relayed to the destination from the output signal output from the power amplifier unit of the working system to the output signal output from the power amplifier unit of the standby system; When an output start instruction for instructing the start of signal output from the transmitting device is input, the power amplifier unit in the active system starts outputting the output signal; When the frequency component outside the transmission frequency band included in the output signal output from the power amplifier of the working system satisfies the condition, the relay unit is caused to start relaying the output signal of the working system to the transmission destination. Sending program.

Images