JP2001044893A - Radio wave method and radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with exchange of alarms and change-over signals between both indoor and outdoor units, to reduce a cable, to simplify arrangement work, to reduce cost and to facilitate maintenance by individually issuing alarm in each units, when a fault occurs and executing change-over into a reserve machine. SOLUTION: When a fault occurs in the modulating parts 3a and 3b of a transmission side indoor unit IDU, a fault detecting signal is generated, alarm is issued, a change-over control signal is generated, a change-over switch SW 4 is controlled and change-over is executed into the reserve machine. When a fault occurs in the transmission modulating parts 7a and 7b and/or the transmission high frequency parts 8a and 8b of the outdoor unit ODU, alarm is issued similarly, SW 9 is controlled and change-over is executed into a reserve machine side. In the meantime, when the fault occurs in the demodulating parts 18a, 18b of IDU at a reception side and the reception modulating parts 14a, 14b and the reception high frequency parts 13a and 13b of ODU, alarm is respectively issued similarly and change-over is made into the reserve machine side by controlling signal distributors (HYB) 17 and 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio method and a radio device, and more particularly to a radio method for switching radio from an active device to a standby device in a radio device having a redundant system.

[0002]

2. Description of the Related Art FIG. 19 is a block diagram showing a method of switching from working to standby in a conventional radio apparatus. The wireless device illustrated in FIG. 19 includes a modulation unit, a demodulation unit, a transmission frequency conversion unit, a reception frequency conversion unit, a transmission high-frequency unit, and a reception high-frequency unit. Indoor units (hereinafter referred to as
An "IDU") and an outdoor device (hereinafter, referred to as "ODU") are installed, and both devices are connected by a transmission cable. In FIG. 13, reference numeral 1 denotes a baseband (Ba)
se Band: BB) BB signal input terminal for inputting a signal,
Reference numeral 2 denotes a signal distributor HYB for distributing an input signal; 3a, an active modulator 1 and 3b for modulating an input signal; and a spare modulator used by switching when the active modulator 1 (3a) is out of order. The preliminary modulation unit 7a is a working transmission frequency conversion unit 1 that converts the frequency of the input signal into a carrier frequency band.
Reference numeral 7b denotes a spare backup transmission frequency conversion unit which is switched and used when the current transmission frequency conversion unit 1 (7a) fails, etc., and reference numeral 5a denotes a working modulation unit 1 (3a) and a current transmission frequency conversion unit 1 ( 7a), an active transmission cable 5b, a standby auxiliary transmission cable connecting the standby modulation unit 2 (3b) and the standby transmission frequency conversion unit 2 (7b), and 8a input. The active transmission high-frequency units 1 and 8b for amplifying the signal are used as spare standby transmission high-frequency units for switching when the active transmission high-frequency unit 1 (8a) is out of order, and 9 is used for inputting any of the input signals. The changeover switches SW 10 and 10 for switching and outputting are RF (Radio Frequenc)
y: RF) An RF output terminal for outputting a signal, 11 is an RF input terminal for inputting an RF signal, 12 is a signal distributor HYB for distributing the input signal, and 13a is an active reception high frequency unit 1 for amplifying the input signal. , 13b are spare standby receiving high-frequency units that are switched and used when the working receiving high-frequency unit 1 (13a) fails or the like, and 14a is a working standby high-frequency unit that converts an input signal into an intermediate frequency (IF) signal. The receiving frequency converters 1 and 14b are used as spare standby receiving frequency converters that are switched and used when the working receiving frequency converter 1 (14a) is out of order, and the working demodulator 1 18a demodulates an input signal. , 18b are backup spare demodulators which are used by switching when the working demodulator 1 (18a) fails or the like, and 16a is a working receiving frequency converter 1 (14a) and working spare demodulator 1 (14a). A working transmission cable for connection between the demodulator 1 (18a) and a spare transmission cable 16b for connecting between the spare standby receiving frequency converter 2 (14b) and the spare spare demodulator 2 (18b). A spare transmission cable 19, a switch SW for switching and outputting one of the input signals, and a BB output terminal 20 for outputting a BB signal.

Next, the operation of the transmitting side IDU and ODU will be described. As shown in FIG. 19, the BB signal input from the BB input terminal 1 is divided into two by a signal distributor HYB2, and is modulated into an IDU output signal by the working modulator 1 (3a). The IDU output signal is transmitted to the active transmission frequency converter 1 on the ODU side connected to the active transmission cable 5a.
The signal is converted into a carrier frequency band in (7a), and is further amplified in the working transmission high frequency unit 1 (8a). This working modulator 1 (3
The system from a) to the active transmission high frequency unit 1 (8a) is called a transmission active route. Similarly, the preliminary modulation unit 2 (3b)
The IDU output signal modulated by the auxiliary transmission cable 5b
ODU-side spare transmission frequency converter 2 (7
After b), the signal is amplified by the preliminary transmission high frequency unit 2 (8b).
From the preliminary modulation section 2 (3b) to the preliminary transmission high-frequency section 2 (8
The system up to b) is called a transmission reserve route. The changeover switch SW9 instantaneously automatically switches to the spare transmission route when the transmission working route is out of order. The RF output terminal 10 outputs either the signal of the working transmission route or the signal of the protection transmission route.

[0004] The procedure for automatic switching on the transmitting side will be described in detail. Modulation unit 1 (3a) or preliminary modulation unit 2
The failure detection signal output from (3b) and the transmission frequency converter 1 (7a) or the spare transmission frequency converter 2 (7b)
And the transmission high-frequency unit 1 (8
a) or the failure detection signal output from the preliminary transmission high-frequency unit 2 (8b) is collected by an alarm control processing unit (not shown) in either or both of the IDU and the ODU to transmit the alarm signal, A switching control signal is generated and transmitted to the switching switch SW9 to perform switching control.
Therefore, an alarm transmission cable (not shown) for transmitting the alarm signal and the switching control signal is provided between the IDU and the ODU. This alarm transmission cable is provided separately from the transmission cable 5a and the spare transmission cable 5b, or is shared with the transmission cable 5a and the like.

Next, the operation of the IDU and ODU on the receiving side will be described. The RF signal input from the RF input terminal 11 is divided into two by the signal distributor HYB12, amplified by the working reception high-frequency unit 1 (13a), and then amplified by the working reception frequency conversion unit 1 (14a). It is converted into a signal (ODU output signal). The ODU output signal is output to the active demodulation unit 1 (1) on the IDU side connected to the active transmission cable 16a.
8a) and demodulated into a BB signal. From the working reception high-frequency unit 1 (14a) to the working demodulation unit 1 (18)
The system up to a) is called a reception working route. Similarly,
ODU amplified by the preliminary receiving high frequency section 2 (13b) and converted into an IF band signal by the preliminary receiving frequency converting section 2 (14b)
The output signal is the ID connected to the spare transmission cable 16b.
The signal is transmitted to the U-side preliminary demodulation unit 2 (18b) and demodulated into a BB signal. The system from the preliminary reception high-frequency unit 2 (14b) to the preliminary demodulation unit 2 (18b) is called a reception preliminary route. The changeover switch SW19 instantaneously switches automatically to the standby reception route when the active reception route fails.
The BB output terminal outputs either the signal of the working reception route or the signal of the protection reception route.

The procedure for automatic switching of the receiving side will be described in detail. Failure detection signal output from reception high-frequency unit 1 (13a) or standby reception high-frequency unit 2 (13b), and failure detection signal output from reception frequency conversion unit 1 (14a) or standby reception frequency conversion unit 2 (14b) When,
The failure detection signal output from the demodulation unit 1 (18a) or the preliminary demodulation unit 2 (18b) is collected by an alarm control processing unit (not shown) in one or both of the ODU and the IDU, and an alarm signal is transmitted. At the same time, a switching control signal is generated and transmitted to the switching switch SW19 to perform switching control. Therefore, an alarm transmission cable (not shown) for transmitting the alarm signal and the switching control signal is connected to the IDU and the ODU.
DU. The alarm transmission cable is provided separately from the transmission cable 16a and the spare transmission cable 16b, or is shared with the transmission cable 16a and the like. As described above, between the IDU and the ODU in the conventional wireless device, the working transmission route and the protection transmission route are connected one-to-one by the transmission cable 5a and the protection transmission cable 5b on the transmission side, and The working reception route and the backup reception route are each connected to the transmission cable 16.
a and the transmission cable 16b.

FIG. 20 is a block diagram showing another conventional radio apparatus. The wireless device shown in FIG. 20 has components of only the active system in the wireless device shown in FIG. Specifically, in FIG. 19, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a transmission cable 5
b, the transmission conversion unit 2 (7b), the transmission high-frequency unit 2 (8b), and the changeover switch SW9 are eliminated from the constituent elements, and the reception side includes the signal distributor HYB12, the reception high-frequency unit 2 (13
b), the reception converter 2 (14b), the transmission cable 16b,
The demodulator 2 (18b) and the changeover switch SW19 are eliminated from the components.

[0008]

As described above, the IDU
A conventional wireless device having an IDU and an ODU
The active transmission / reception route and the standby transmission / reception route are also configured including the transmission cable between them. As a result, four transmission cables are required between the IDU and the ODU, which complicates installation work of the IDU, the ODU, etc., increases the cost of the entire equipment, and complicates maintenance of a large number of transmission cables. was there. Therefore, an object of the present invention is to solve the above-mentioned problem, and by using one or two transmission cables between the IDU and the ODU, the installation work of the IDU, ODU, etc. can be simplified. It is an object of the present invention to provide a wireless method and a wireless device that can reduce the cost of the entire equipment and simplify the maintenance of the transmission cable.

[0009]

A wireless method according to the present invention comprises:
A modulator having a working modulator for modulating an input signal and a spare modulator for protection of the working modulator; a working transmission frequency converter for converting the frequency of the input signal into a carrier frequency band; and the working transmission frequency A transmission frequency conversion unit having a spare transmission frequency conversion unit as a spare for the conversion unit, a transmission high frequency unit having a working transmission high frequency unit for amplifying an input signal and a spare transmission high frequency unit serving as a standby for the current transmission high frequency unit A receiving high-frequency section having an active receiving high-frequency section for amplifying an input signal and a standby receiving high-frequency section for standby of the active receiving high-frequency section; an active receiving frequency converting section for converting an input signal to an IF signal; A reception frequency conversion unit having a standby reception frequency conversion unit serving as a standby for the reception frequency conversion unit; a working demodulation unit for demodulating an input signal; and a protection serving as a standby for the working demodulation unit A wireless method between working and spare in a radio apparatus having a demodulator and a contrast portion,
The transmitting side distributes the input baseband signal to a working modulator or a spare modulator, a baseband signal distribution step, and a working modulation step of modulating the signal distributed in the baseband signal distribution step by a working modulator. A pre-modulation step of modulating a signal distributed in the baseband signal distribution step by a pre-modulation unit; and a transmission signal selection step of selecting any one of the signals modulated in the modulation step and the pre-modulation step. A first connection step of connecting the signal selected in the transmission signal selection step to a transmission conversion unit via a transmission cable;
A working transmission frequency conversion step of converting the signal connected in the first connection step by a working transmission frequency conversion section; and a working transmission RF step of amplifying the signal converted in the working transmission frequency conversion step by a working transmission high frequency section. A preliminary transmission frequency conversion step of converting the signal connected in the first connection step by a preliminary transmission frequency conversion section, and a preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high frequency section. , The working transmission R
And a transmission output step of outputting a signal based on the signal amplified in the preliminary transmission RF step and the transmission signal selection step, in a case where the working modulation unit fails, the working modulation unit is replaced with the preliminary modulation unit. The transmission output step is to switch the working transmission frequency conversion unit and the working transmission high frequency unit to the spare transmission frequency conversion unit and the protection transmission high frequency unit when the working transmission frequency conversion unit or the working transmission high frequency unit fails. The receiving side includes a receiving signal distributing step of distributing a received RF signal to a working receiving high frequency unit or a standby receiving high frequency unit; and a working receiving RF unit for amplifying the signal distributed in the receiving signal distributing step by the working receiving high frequency unit. Current step of converting the signal amplified in the receiving RF step into an IF signal by a current receiving frequency conversion unit. A signal frequency conversion step, a standby receiving RF step the distributed signal by the reception signal distribution step of amplifying the preliminary receiving radio-frequency unit, the standby receiving RF
The signal amplified in the step is converted into I
A preliminary reception frequency conversion step of converting to an F signal; a reception signal selection step of selecting any one of the signals converted in the working reception frequency conversion step and the preliminary reception frequency conversion step; A second connection step of connecting the signal selected in the step to a demodulation unit via a reception cable, a working demodulation step of demodulating the signal connected in the second connection step in a working demodulation unit, and the second connection step A preliminary demodulation step of demodulating the signal connected by the preliminary demodulation unit with a preliminary demodulation unit; and a reception output selection step of selecting and outputting any one of the signals demodulated in the working demodulation step and the preliminary demodulation step. The receiving signal selecting step is performed when the working receiving high-frequency unit or the working receiving frequency conversion unit fails. The high frequency unit and the working reception frequency conversion unit are switched to a standby reception high frequency unit and a standby reception frequency conversion unit, and the reception output selecting step is to switch the working demodulation unit to the standby demodulation unit when the working demodulation unit fails. .

In the wireless communication method according to the present invention, the first connection step distributes the signal selected in the transmission signal selection step to a working transmission frequency conversion section and a standby transmission frequency conversion section, and the transmission output step Selects and outputs any one of the signals amplified in the working transmission RF step and the preliminary transmission RF step, and the second connection step includes selecting the signal selected in the reception signal selection step. Can be distributed to the demodulation unit and the preliminary demodulation unit.

Here, in the wireless method of the present invention, the first connection step switches and connects the signal selected in the transmission signal selection step to either an active transmission frequency conversion unit or a standby transmission frequency conversion unit. , The transmission output step includes the transmission RF step and the preliminary transmission R
Selecting and outputting any one of the signals amplified in the step F, and the second connecting step includes converting the signal selected in the received signal selecting step into one of a working demodulator and a spare demodulator. It can be switched to one and connected.

Here, in the wireless method of the present invention, the first connection step distributes the signal selected in the transmission signal selection step to a working transmission frequency conversion section and a standby transmission frequency conversion section, and the transmission output step Synthesizes and outputs the signals amplified in the working transmission RF step and the protection transmission RF step, and the second connection step includes a step of demodulating the signal selected in the reception signal selection step to a demodulation unit and a protection demodulation unit. Can be distributed to

According to the radio method of the present invention, a modulator having a working modulator for modulating an input signal and a spare modulator for protection of the working modulator converts a frequency of the input signal into a carrier frequency band. A transmission frequency conversion unit having an active transmission frequency conversion unit and a standby transmission frequency conversion unit that is a standby for the active transmission frequency conversion unit, an active transmission high frequency unit that amplifies an input signal, and a standby for the active transmission high frequency unit. A transmitting high-frequency unit having a certain preliminary transmitting high-frequency unit, a receiving high-frequency unit having an active receiving high-frequency unit for amplifying an input signal and a standby receiving high-frequency unit for standby of the active receiving high-frequency unit, and converting the input signal to an IF signal A reception frequency conversion unit having a working reception frequency conversion unit for conversion and a backup reception frequency conversion unit for backup of the current reception frequency conversion unit, and a current demodulation for demodulating an input signal A demodulation unit having a spare demodulation unit that is a backup of the working demodulation unit, an indoor unit having the modulation unit and the demodulation unit, and an outdoor unit having the transmission high-frequency unit and the reception high-frequency unit. A wireless method for switching between working and protection in the wireless device, wherein the indoor device-side transmission step is a baseband signal distribution step of distributing the input baseband signal to the working modulation unit and the protection modulation unit, A working modulation step of modulating the signal distributed in the baseband signal distribution step by the working modulation section; a preliminary modulation step of modulating the signal distributed in the baseband signal distribution step by the preliminary modulation section; and the working modulation step. If any one of the signals modulated in the preliminary modulation step is selected and the working modulation unit fails, the working modulation unit A transmission signal selection step of switching to a preliminary modulation unit, and a transmission-side transmission step of transmitting the signal selected in the transmission signal selection step to an outdoor device via a transmission cable, wherein the outdoor-device-side transmission step includes: A transmission signal distribution step of distributing the signal transmitted in the side transmission step to the transmission high-frequency unit side, a transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step, and the transmission side demultiplexing step. A transmitting side split signal distributing step of distributing the demultiplexed signal to a working transmitting frequency converting unit and a standby transmitting frequency converting unit; and converting the signal distributed in the transmitting side split signal distributing step by an active transmitting frequency converting unit. An active transmission RF step of amplifying a signal converted in the active transmission conversion step in an active transmission high frequency unit; A preliminary transmission conversion step of converting the signal distributed in the wave signal distribution step by a preliminary transmission frequency conversion section; a preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high frequency section; Send R
Selecting and outputting any one of the signals amplified in the F step and the preliminary transmission RF step;
A transmission output step of switching the active transmission frequency conversion unit or the active transmission high frequency unit to the standby transmission frequency conversion unit and the standby transmission high frequency unit when the active transmission frequency conversion unit or the active transmission high frequency unit fails; The receiving step is a receiving signal distributing step of distributing the received RF signal to the working receiving high-frequency unit and the standby receiving high-frequency unit;
A working reception RF step for amplifying a signal distributed in the reception signal distribution step by a working reception high frequency section, a protection reception RF step for amplifying a signal distributed in the reception signal distribution step in a protection reception high frequency section, One of the signals amplified by the reception frequency conversion unit and the standby reception frequency conversion unit is selected, and when the active reception high frequency unit fails, the active reception high frequency unit is switched to the standby reception high frequency unit. A signal selecting step, a receiving side transmitting step of transmitting the signal selected in the received signal selecting step to the indoor unit side via the transmission cable, and the indoor unit side receiving step is the receiving side transmitting step. A receiving signal distributing step of distributing the transmitted signal to the demodulation unit side, and demultiplexing the signal distributed in the receiving signal distributing step. A receiving-side demultiplexing step; a receiving-side demultiplexing signal distribution step of distributing the signal demultiplexed in the receiving-side demultiplexing step to a working reception frequency conversion unit and a standby reception frequency conversion unit; and A working reception frequency conversion step of converting the signal distributed in the distribution step into an IF signal in a working reception frequency conversion section, and a working demodulation step of demodulating the signal converted in the working reception frequency conversion step in a working demodulation section; A preliminary receiving frequency converting step of converting the signal distributed in the receiving side demultiplexed signal distributing step into an IF signal in a preliminary receiving frequency converting section, and demodulating the signal converted in the preliminary receiving frequency converting step in a preliminary demodulating section. Selecting and outputting one of the signals demodulated in the preliminary demodulation step, the working demodulation step and the preliminary demodulation step. And a receiving output selecting step of switching the working reception frequency conversion unit and the working demodulation unit to the standby reception frequency conversion unit and the standby demodulation unit when the working reception frequency conversion unit or the working demodulation unit fails. .

Here, in the wireless method of the present invention, the outdoor device-side receiving step includes, after the working reception RF step, converting the signal amplified by the working reception RF step into an IF signal by a working reception frequency conversion unit. A receiving frequency conversion step, and after the preliminary receiving RF step, a preliminary receiving frequency converting step of converting the signal amplified by the preliminary receiving RF step into an IF signal by a preliminary receiving frequency conversion unit, The signal selecting step is to select any one of the signals converted in the working receiving frequency converting step and the preliminary receiving frequency converting step, and the indoor device side receiving step includes the receiving side transmitting step. Distributing the signal transmitted in the step to the demodulation unit side; A reception-side demultiplexing step of demultiplexing the signal distributed in the distribution step, and a reception-side demultiplexing signal distribution step of distributing the signal demultiplexed in the reception-side demultiplexing step to a working demodulator and a backup demodulator; A working demodulation step of demodulating the signal distributed in the receiving side demultiplexed signal distribution step in a working demodulation section, and a preliminary demodulation step of demodulating the signal distributed in the reception side demultiplexed signal distribution step in a preliminary demodulation section; Selecting one of the signals demodulated in the working demodulation step and the protection demodulation step and outputting the selected signal, and when the working demodulation unit fails, the reception output selection for switching the working demodulation unit to the protection demodulation unit And steps.

Here, in the wireless method of the present invention, the indoor unit-side transmitting step includes, after the working modulation step, a working transmission frequency converting step of converting a signal modulated in the working modulation step; After the step, further comprising a preliminary transmission frequency conversion step of converting the signal modulated in the preliminary modulation step, wherein the transmission signal selection step is converted in the working transmission frequency conversion step and the preliminary transmission frequency conversion step Select and output any one of the signals,
When the working modulation unit or the working transmission frequency conversion unit fails, the working modulation unit and the working transmission frequency conversion unit are switched to a modulation unit and a spare transmission frequency conversion unit, and the outdoor device-side transmission step includes: A transmitting signal distributing step of distributing the signal transmitted in the transmitting side transmitting step to a transmitting high frequency unit, a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step, and the transmitting side demultiplexing step A transmitting-side split signal distributing step of distributing the signal demultiplexed in the active transmitting high-frequency unit and the standby transmitting high-frequency unit; and a current amplifying the signal distributed in the transmitting-side split signal distributing step in the active transmitting high-frequency unit. A transmitting RF step, a preliminary transmitting RF step of amplifying a signal distributed in the split signal distributing step by a preliminary transmitting high frequency section, and the active transmitting RF Step and said selecting any one signal among the amplified signal in a pre-transmission RF step outputs, when the working transmission frequency unit fails,
A transmission output step of switching the working transmission high-frequency unit to the standby transmission high-frequency unit.

According to the radio method of the present invention, a modulator having a working modulator for modulating an input signal and a spare modulator for protection of the working modulator converts a frequency of the input signal into a carrier frequency band. A transmission frequency conversion unit having an active transmission frequency conversion unit and a standby transmission frequency conversion unit that is a standby for the active transmission frequency conversion unit, an active transmission high frequency unit that amplifies an input signal, and a standby for the active transmission high frequency unit. A transmitting high-frequency unit having a certain preliminary transmitting high-frequency unit, a receiving high-frequency unit having an active receiving high-frequency unit for amplifying an input signal and a standby receiving high-frequency unit for standby of the active receiving high-frequency unit, and converting the input signal to an IF signal A reception frequency conversion unit having a working reception frequency conversion unit for conversion and a backup reception frequency conversion unit for backup of the current reception frequency conversion unit, and a current demodulation for demodulating an input signal A demodulation unit having a spare demodulation unit that is a backup of the working demodulation unit, an indoor unit having the modulation unit and the demodulation unit, and an outdoor unit having the transmission high-frequency unit and the reception high-frequency unit. A wireless method for switching between working and protection in the wireless device, wherein the indoor device-side transmission step is a baseband signal distribution step of distributing the input baseband signal to the working modulation unit and the protection modulation unit, A working modulation step of modulating the signal distributed in the baseband signal distribution step by the working modulation section; a preliminary modulation step of modulating the signal distributed in the baseband signal distribution step by the preliminary modulation section; and the working modulation step. If any one of the signals modulated in the preliminary modulation step is selected and the working modulation unit fails, the working modulation unit A transmission signal selection step of switching to a preliminary modulation unit, and a transmission-side transmission step of transmitting the signal selected in the transmission signal selection step to an outdoor device via a transmission cable, wherein the outdoor-device-side transmission step includes: A transmission signal distribution step of distributing the signal transmitted in the side transmission step to the transmission high-frequency unit side, a transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step, and the transmission side demultiplexing step. A transmitting-side demultiplexing signal switching step of switching the demultiplexed signal to either the working transmission frequency conversion unit or the standby transmission frequency conversion unit, and a signal switched in the transmission-side demultiplexing signal switching step is used as a working transmission frequency conversion unit. And a working transmission RF step of amplifying a signal converted in the working transmission conversion step in a working transmission high frequency unit. And a preliminary transmission conversion step of converting the signal switched in the transmission side demultiplexed signal switching step in a preliminary transmission frequency conversion section, and amplifying the signal converted in the preliminary transmission conversion step in a preliminary transmission high frequency section. The preliminary transmission RF step, and any one of the signals amplified in the current transmission RF step and the preliminary transmission RF step is selected and output, and the current transmission frequency conversion unit or the current transmission high frequency unit has failed. A transmission output step of switching the working transmission frequency conversion section and the working transmission high-frequency section to a standby transmission frequency conversion section and a standby transmission high-frequency section, wherein the outdoor device-side reception step converts the received RF signal into a current reception high-frequency section. And a receiving signal distributing step for distributing the signals to the standby receiving high frequency section; In the working reception RF step of amplifying by the high-frequency part, the protection reception RF step of amplifying the signal distributed in the reception signal distribution step by the protection reception high-frequency part, and the working reception frequency conversion part and the protection reception frequency conversion part If any one of the amplified signals is selected, and the active high-frequency unit fails, the active high-frequency unit is switched to the standby high-frequency unit. Receiving the transmitted signal to the indoor device side via the transmission cable, wherein the indoor device receiving step distributes the signal transmitted in the receiving side transmission step to the demodulation unit side. Step, a receiving-side demultiplexing step of demultiplexing the signal distributed in the received signal distributing step, and a receiving-side demultiplexing step. A receiving-side demultiplexing signal switching step of switching the wave-converted signal to either the working reception frequency conversion unit or the standby reception frequency conversion unit; and a working reception frequency conversion unit that switches the signal switched in the reception-side demultiplexing signal switching step. A current receiving frequency converting step of converting the signal converted in the working receiving frequency converting step into a working demodulating section for demodulating the signal converted in the working receiving frequency converting step, and a signal switched in the receiving side split signal switching step. A preliminary reception frequency conversion step of converting the signal converted in the preliminary reception frequency conversion step into an IF signal in a preliminary reception frequency conversion section, a preliminary demodulation step of demodulating the signal converted in the preliminary reception frequency conversion step in a preliminary demodulation section, the working demodulation step and the preliminary demodulation And selecting and outputting any one of the signals demodulated in the steps (a) and (b). A receiving output selecting step of switching the working reception frequency conversion unit and the working demodulation unit to the standby reception frequency conversion unit and the standby demodulation unit when the tuning unit fails.

Here, in the wireless method of the present invention, in the outdoor device-side receiving step, after the working reception RF step, the signal amplified by the working reception RF step is converted into an IF signal by a working reception frequency conversion unit. A receiving frequency conversion step, and after the preliminary receiving RF step, a preliminary receiving frequency converting step of converting the signal amplified by the preliminary receiving RF step into an IF signal by a preliminary receiving frequency conversion unit, The signal selecting step is to select any one of the signals converted in the working receiving frequency converting step and the preliminary receiving frequency converting step, and the indoor device side receiving step includes the receiving side transmitting step. Distributing the signal transmitted in the step to the demodulation unit side; A receiving-side demultiplexing step of demultiplexing the signal distributed in the distribution step, a receiving-side demultiplexed signal switching step of switching the signal demultiplexed in the receiving-side demultiplexing step to a working demodulator or a standby demodulator, A working demodulation step of demodulating the signal switched in the receiving-side demultiplexed signal switching step in the working demodulation section; a preliminary demodulation step of demodulating the signal switched in the receiving-side demultiplexed signal switching step in the preliminary demodulation section; Any one of the signals demodulated in the working demodulation step and the preliminary demodulation step
And selecting one of the signals and outputting the selected signal, and when the active demodulation unit fails, a reception output selection step of switching the active demodulation unit to the standby demodulation unit.

Here, in the wireless method of the present invention, the indoor unit side transmitting step includes: after the working modulation step, a working transmission frequency converting step of converting a signal modulated in the working modulation step; After the step, further comprising a preliminary transmission frequency conversion step of converting the signal modulated in the preliminary modulation step, wherein the transmission signal selection step is converted in the working transmission frequency conversion step and the preliminary transmission frequency conversion step Select and output any one of the signals,
When the working modulation unit or the working transmission frequency conversion unit fails, the working modulation unit and the working transmission frequency conversion unit are switched to a modulation unit and a spare transmission frequency conversion unit, and the outdoor device-side transmission step includes: A transmitting signal distributing step of distributing the signal transmitted in the transmitting side transmitting step to a transmitting high frequency unit, a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step, and the transmitting side demultiplexing step A transmitting-side demultiplexing signal switching step of switching the signal demultiplexed in either the active transmission high-frequency unit or the standby transmission high-frequency unit, and amplifying the signal switched in the transmission-side demultiplexed signal switching step by the active transmission high-frequency unit. An active transmission RF step to perform, and a preliminary transmission RF step of amplifying the signal switched in the transmission side demultiplexed signal switching step by a preliminary transmission high frequency unit. Any one of the signals amplified in the current transmission RF step and the preliminary transmission RF step is selected and output, and when the current transmission high frequency unit fails, the current transmission high frequency unit is replaced with the preliminary transmission high frequency unit. And a transmission output step of switching to

Here, in the wireless method of the present invention, the transmission cable is an optical fiber cable, and in the indoor unit side transmitting step, the transmitting side transmitting step converts the electric signal selected in the transmission signal selecting step into an optical signal. And transmitting the optical signal to the outdoor device side via the optical fiber cable. In the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electric signal. And then distributes the signal to the outdoor device side, and in the outdoor device-side receiving step, the receiving-side transmitting step converts the electric signal selected in the received signal selecting step into an optical signal and transmits the signal to the indoor device via the optical fiber cable. Transmitting, and in the indoor device side receiving step, the receiving signal distributing step includes the receiving side transmission step. The optical signal transmitted in-up is capable of distributing converted into an electric signal to the receiving indoor unit side.

A wireless device according to the present invention includes a transmitter indoor device,
A transmitting outdoor device, a transmission cable connecting between the transmitting indoor device and the transmitting outdoor device, a receiving outdoor device, a receiving indoor device, and a connection between the receiving outdoor device and the receiving indoor device. A wireless device having a receiving cable to be connected, wherein the transmitting-side indoor device includes a baseband signal distribution unit that distributes an input baseband signal, and a modulation unit that modulates a signal distributed by the baseband signal distribution unit. And a preliminary modulation unit that modulates the signal distributed by the baseband signal distribution unit, and selects one of the signals modulated by the modulation unit and the preliminary modulation unit, and the modulation unit fails. A transmission signal selection unit that switches the modulation unit to a spare modulation unit, wherein the transmission-side outdoor device connects the signal selected by the transmission signal selection unit via the transmission cable. A transmission frequency conversion unit that converts a frequency of a signal connected by the first connection unit to a carrier frequency band, a transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit, and the first connection unit A preliminary transmission conversion unit that converts the frequency of the signal connected in the carrier frequency band, a preliminary transmission high-frequency unit that amplifies the signal converted by the preliminary transmission conversion unit, the transmission high-frequency unit, and the preliminary transmission high-frequency unit And a transmission output unit that switches the transmission frequency conversion unit and the transmission high-frequency unit to the preliminary transmission frequency conversion unit and the preliminary transmission high-frequency unit when the transmission frequency conversion unit or the transmission high-frequency unit fails. Wherein the reception-side outdoor device includes: a reception signal distribution unit that distributes a received RF signal; a reception high-frequency unit that amplifies a signal distributed by the reception signal distribution unit; IF a reception frequency converter, and the spare receiver RF unit for amplifying the distributed signal by the reception signal distribution unit, the signal amplified by the preliminary receiving radio-frequency unit for converting the signal amplified by the wave section to the IF signal
A preliminary receiving frequency conversion unit for converting to a signal, selecting the signal converted by the receiving frequency converting unit and the preliminary receiving frequency converting unit, and when the receiving high frequency unit or the receiving frequency converting unit fails, the receiving high frequency unit And a reception signal selection unit that switches the reception frequency conversion unit to a standby reception high frequency unit and a standby reception frequency conversion unit, wherein the reception-side indoor device connects a signal selected by the reception signal selection unit to a second connection. A demodulator that demodulates the signal connected by the second connector, a preliminary demodulator that demodulates the signal connected by the second connector, and a demodulator that demodulates the signal by the demodulator and the preliminary demodulator. And a reception output selection unit that switches the demodulation unit to the standby demodulation unit when the demodulation unit fails.

[0021] A wireless device according to the present invention includes a transmitter indoor device,
A receiving indoor device, an indoor device including the transmitting indoor device and the receiving indoor device, a transmitting outdoor device, a receiving outdoor device,
An outdoor device including the transmitting-side outdoor device and the receiving-side outdoor device, a wireless device having a transmission cable connecting between the indoor device and the outdoor device, wherein the transmitting-side indoor device includes an input base. A baseband signal distribution unit that distributes a band signal; a modulation unit that modulates a signal distributed by the baseband signal distribution unit; a preliminary modulation unit that modulates a signal distributed by the baseband signal distribution unit; Selecting one of the signals modulated by the modulation unit and the preliminary modulation unit, and when the modulation unit fails, the transmission signal selection unit and the transmission signal selection unit switch the modulation unit to the preliminary modulation unit. A transmission-side transmission unit that transmits the selected signal to the outdoor device via the transmission cable, wherein the transmission-side outdoor device separates the signal transmitted from the transmission-side transmission unit to the transmission-side outdoor device. A transmitting signal splitting unit, a transmitting side splitting unit for splitting the signal split by the transmitting signal splitting unit, and a transmitting side split signal splitting unit for splitting the signal split by the transmitting side splitting unit. An active transmission frequency conversion unit that converts the frequency of the signal distributed by the transmission side split signal distribution unit to a carrier frequency band, and an active transmission high frequency unit that amplifies the signal converted by the active transmission frequency conversion unit. A preliminary transmission frequency conversion unit that converts the frequency of the signal distributed by the transmission side demultiplexed signal distribution unit to a carrier frequency band, and a preliminary transmission high frequency unit that amplifies the signal converted by the preliminary transmission frequency conversion unit, Any one of the signals amplified by the working transmission high-frequency unit and the spare transmission high-frequency unit is selected and output, and if the working transmission frequency conversion unit or the working transmission high-frequency unit fails, the working transmission frequency conversion unit And a transmission output unit for switching the active transmission high-frequency unit to a standby transmission frequency conversion unit and a standby transmission high-frequency unit, wherein the reception-side outdoor device distributes a received RF signal, and a reception signal distribution unit; A working reception high-frequency unit that amplifies the signal distributed by the distribution unit, a standby reception high-frequency unit that amplifies the signal distributed by the reception signal distribution unit, and the active reception high-frequency unit and the standby reception RF are amplified. If any of the signals is selected, and the working reception high-frequency unit fails, the reception signal selection unit that switches the working reception high-frequency unit to the standby reception high-frequency unit, and the signal selected by the reception signal selection unit A reception-side transmission unit that transmits the signal to the indoor unit via the transmission cable, wherein the reception-side indoor unit distributes a signal transmitted from the reception-side transmission unit to the reception-side indoor unit. A receiving signal distributing unit, a receiving side demultiplexing unit for demultiplexing the signal distributed by the receiving signal distributing unit, and a receiving side demultiplexing signal distributing unit for distributing the signal demultiplexed by the receiving side demultiplexing unit And the signal distributed by the reception-side demultiplexed signal distribution unit is IF
A working reception frequency conversion unit for converting the signal into a signal; a working demodulation unit for demodulating the signal converted by the working reception frequency conversion unit;
A preliminary reception frequency conversion unit that converts the signal into a signal, a preliminary demodulation unit that demodulates the signal converted by the preliminary reception frequency conversion unit, and any one of the signals demodulated by the demodulation unit and the preliminary demodulation unit. When a signal is selected and output, and the working reception frequency conversion unit or the working demodulation unit fails,
And a reception output selection unit for switching the working reception frequency conversion unit and the working demodulation unit to a standby reception frequency conversion unit and a standby demodulation unit.

[0022] A wireless device according to the present invention includes a transmitter indoor device,
A receiving indoor device, an indoor device including the transmitting indoor device and the receiving indoor device, a transmitting outdoor device, a receiving outdoor device,
An outdoor device including the transmitting-side outdoor device and the receiving-side outdoor device, a wireless device having a transmission cable connecting between the indoor device and the outdoor device, wherein the transmitting-side indoor device includes an input base. A baseband signal distribution unit that distributes a band signal; a modulation unit that modulates a signal distributed by the baseband signal distribution unit; a preliminary modulation unit that modulates a signal distributed by the baseband signal distribution unit; Selecting one of the signals modulated by the modulation unit and the preliminary modulation unit, and when the modulation unit fails, the transmission signal selection unit and the transmission signal selection unit switch the modulation unit to the preliminary modulation unit. A transmission-side transmission unit that transmits the selected signal to the outdoor device via the transmission cable, wherein the transmission-side outdoor device separates the signal transmitted from the transmission-side transmission unit to the transmission-side outdoor device. A transmission-side demultiplexing unit, a transmission-side demultiplexing unit that demultiplexes the signal distributed by the transmission-signal distribution unit, and a transmission-side demultiplexed signal switching unit that switches the signal demultiplexed by the transmission-side demultiplexing unit. An active transmission frequency conversion unit that converts the frequency of the signal switched by the transmission-side split signal switching unit to a carrier frequency band, and an active transmission high-frequency unit that amplifies the signal converted by the active transmission frequency conversion unit. A preliminary transmission frequency conversion unit that converts the frequency of the signal switched by the transmission side demultiplexed signal switching unit to a carrier frequency band, a preliminary transmission high frequency unit that amplifies the signal converted by the preliminary transmission frequency conversion unit, Any of the signals amplified by the working transmission high-frequency unit and the spare transmission high-frequency unit is selected and output, and if the working transmission frequency conversion unit or the working transmission high-frequency unit fails, the current transmission Wavenumber conversion unit and the the developing transmission frequency unit and a transmitting output unit for switching to a spare transmission frequency converter and the spare transmission frequency unit,
The reception-side outdoor device is a reception signal distribution unit that distributes a received RF signal, a working reception high-frequency unit that amplifies the signal distributed by the reception signal distribution unit, and a signal that is distributed by the reception signal distribution unit. A standby receiving high-frequency unit to be amplified, and any one of the signals amplified by the working receiving high-frequency unit and the standby receiving RF is selected. If the working receiving high-frequency unit fails, the working receiving high-frequency unit is set to the standby state. A reception signal selection unit that switches to a reception high-frequency unit, and a reception-side transmission unit that transmits the signal selected by the reception signal selection unit to the indoor device via the transmission cable, the reception-side indoor device includes: A reception signal distribution unit that distributes a signal transmitted from the reception-side transmission unit to a reception-side indoor device; a reception-side demultiplexing unit that demultiplexes a signal distributed by the reception-signal distribution unit; Minute in Namibe A receiving-side demultiplexed signal switching unit that switches the received signal, a working reception-frequency conversion unit that converts the signal switched by the reception-side demultiplexing signal switching unit into an IF signal, and a signal that is converted by the working reception frequency conversion unit. A working demodulator for demodulating a signal; a spare receiving frequency converter for converting a signal switched by the receiving-side demultiplexed signal switching unit into an IF signal; and a spare demodulator for demodulating the signal converted by the spare receiving frequency converter. A demodulation unit, and selects and outputs one of the signals demodulated by the demodulation unit and the backup demodulation unit. If the active reception frequency conversion unit or the active demodulation unit fails, the active reception A frequency conversion unit and a reception output selection unit that switches the working demodulation unit to a standby reception frequency conversion unit and a standby demodulation unit.

Here, in the wireless device of the present invention, the transmission cable is an optical fiber cable, and in the indoor device on the transmission side, the transmission unit on the transmission side converts the electric signal selected by the transmission signal selection unit into an optical signal. The optical signal is converted and transmitted to the outdoor device side via the optical fiber cable. In the transmitting outdoor device, the transmission signal distribution unit converts the optical signal transmitted from the transmission side transmission unit into an electric signal and transmits the electric signal. Distributed to the side outdoor device side, in the reception side outdoor device, the reception side transmission unit converts the electric signal selected by the reception signal selection unit to an optical signal and transmits it to the indoor unit via the optical fiber cable, In the reception-side indoor device, the reception signal distribution unit can convert an optical signal transmitted from the reception-side transmission unit into an electric signal and distribute the electric signal to the reception-side indoor device. Is shall.

[0024] According to the radio method of the present invention, a modulation section for modulating an input signal, a transmission frequency conversion section for converting the frequency of the input signal into a carrier frequency band, a transmission high frequency section for amplifying the input signal, A receiving high-frequency unit that amplifies, a receiving frequency converting unit that converts an input signal into an IF signal, and a demodulation unit that demodulates the input signal; an indoor device having the modulation unit and the demodulation unit; A wireless method in a wireless device including an outdoor device having a reception high-frequency unit, the indoor device-side transmission step,
A modulation step of modulating the input baseband signal by a modulator, and a transmission-side transmission step of transmitting the signal modulated in the modulation step to the outdoor device side via a transmission cable, the outdoor-device-side transmission step includes: A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to a transmission high-frequency unit, a transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step, and the transmission side demultiplexing. A transmitting frequency converting section for converting the signal demultiplexed in the step in a transmitting frequency converting section, and a transmitting RF for amplifying in a transmitting high frequency section the signal converted in the transmitting converting step
And a transmission output step of outputting the signal amplified in the transmission RF step. The outdoor device side reception step includes a reception RF step of amplifying a received RF signal by a reception high frequency unit, and a reception RF step. Receiving the amplified signal to the indoor device side via the transmission cable, wherein the indoor device receiving step distributes the signal transmitted in the receiving side transmission step to the demodulation unit side. Receiving signal distribution step;
A reception-side demultiplexing step of demultiplexing the signal distributed in the reception signal distribution step, and a reception frequency conversion step of converting the signal demultiplexed in the reception-side demultiplexing step into an IF signal in a reception frequency conversion unit, A demodulation step of demodulating the signal converted in the reception frequency conversion step by a demodulation unit;
And a reception output step of outputting a signal demodulated in the demodulation step.

Here, in the wireless method of the present invention, the outdoor device-side receiving step includes, after the receiving RF step, a receiving frequency for converting a signal amplified by the receiving RF step into an IF signal by a receiving frequency conversion unit. Further comprising a conversion step, the indoor device side receiving step,
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side; a reception side demultiplexing step of demultiplexing the signal distributed in the reception signal distribution step; and the reception side demultiplexing step And a receiving output step of outputting the signal demodulated in the demodulation step.

Here, in the wireless method of the present invention, the indoor device-side transmitting step further includes, after the modulating step, a transmitting frequency converting step of converting a signal modulated in the modulating step; The transmitting step is a transmitting signal distributing step of distributing the signal transmitted in the transmitting side transmitting step to a transmitting high frequency unit, a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step, The transmission RF step may include a transmission RF step of amplifying the signal demultiplexed in the transmission-side demultiplexing step by a transmission high-frequency unit, and a transmission output step of outputting the signal amplified in the transmission RF step.

Here, in the wireless method of the present invention, the transmission cable is an optical fiber cable, and in the indoor device side transmission step, the transmission side transmission step converts the electric signal selected in the transmission signal selection step into an optical signal. And transmitting the optical signal to the outdoor device side via the optical fiber cable. In the outdoor device side transmitting step, the transmission signal distribution step converts the optical signal transmitted in the transmitting side transmission step into an electric signal. And distributes the signal to the outdoor device side on the transmitting side, and in the receiving step on the outdoor device side, the receiving side transmitting step converts the electric signal selected in the received signal selecting step into an optical signal and transmits the converted signal to the indoor unit via the optical fiber cable. Transmitting, and in the indoor device side receiving step, the receiving signal distributing step includes the receiving side transmission step. The optical signal transmitted in-up is capable of distributing converted into an electric signal to the receiving indoor unit side.

A wireless device according to the present invention comprises: a transmitting indoor device;
A receiving indoor device, an indoor device including the transmitting indoor device and the receiving indoor device, a transmitting outdoor device, a receiving outdoor device,
An outdoor device including the transmitting-side outdoor device and the receiving-side outdoor device, a wireless device having a transmission cable connecting between the indoor device and the outdoor device, wherein the transmitting-side indoor device includes an input base. A modulation unit that modulates a band signal; and a transmission-side transmission unit that transmits a signal modulated by the modulation unit to the outdoor device via the transmission cable. The transmission-side outdoor device includes the transmission-side transmission unit. A transmission signal distribution unit that distributes the signal transmitted from the transmission side outdoor device side, a transmission side demultiplexer that demultiplexes the signal distributed by the transmission signal distribution unit, and a demultiplexer that demultiplexes the transmission side demultiplexer. A transmission frequency conversion unit that converts the frequency of the obtained signal into a carrier frequency band, a transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit, and a transmission output that outputs the signal amplified by the transmission high-frequency unit. Parts The reception-side outdoor device includes a reception high-frequency unit that amplifies a received RF signal, and a reception-side transmission unit that transmits the signal amplified by the reception high-frequency unit to the indoor device via the transmission cable. A receiving-side indoor device, a receiving-signal distributing unit that distributes a signal transmitted from the receiving-side transmitting unit to the receiving-side indoor device, and a receiving-side demultiplexing unit that demultiplexes the signal distributed by the receiving signal distributing unit. A reception frequency conversion unit that converts the signal demultiplexed by the reception-side demultiplexing unit into an IF signal, a demodulation unit that demodulates the signal converted by the reception frequency conversion unit, and a demodulation unit that demodulates the signal. And a reception output section for outputting a signal.

Here, in the wireless device of the present invention, the transmission cable is an optical fiber cable, and in the indoor device on the transmission side, the transmission side transmission unit converts the electric signal selected by the transmission signal selection unit into an optical signal. The optical signal is converted and transmitted to the outdoor device via the optical fiber cable. In the transmitting outdoor device, the transmission signal distribution unit converts the optical signal transmitted from the transmission side transmission unit into an electric signal and transmits the electric signal. Distributed to the side outdoor device side, in the reception side outdoor device, the reception side transmission unit converts the electric signal selected by the reception signal selection unit to an optical signal and transmits it to the indoor unit via the optical fiber cable, In the reception-side indoor device, the reception signal distribution unit can convert an optical signal transmitted from the reception-side transmission unit into an electric signal and distribute the electric signal to the reception-side indoor device. Is shall.

[0030]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Embodiment 1 FIG. 1 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 1 of the present invention. The wireless device illustrated in FIG. 1 includes a modulation unit, a demodulation unit, a transmission frequency conversion unit, a reception frequency conversion unit, a transmission high-frequency unit, and a reception high-frequency unit, and is separated into two locations: an indoor location and an outdoor location. The IDU and the ODU are installed, and the IDU and the ODU are connected by a transmission cable. In FIG.
Is a BB signal input terminal for inputting a BB signal, 2 is a signal distributor HYB for distributing the input signal, 3a is an active modulator 1 for modulating the input signal, and 3b is an active modulator 1 for the active modulator.
(3a) A spare spare modulation unit that is switched and used when a failure or the like occurs, 4 is a switch SW that switches and outputs one of the input signals, and 6 is a signal distributor HYB that distributes the input signal. 5 is a changeover switch SW4
Transmission cable connecting between the signal distributor HYB6 and
Reference numeral 7a denotes an active transmission frequency converter 1 for converting the frequency of an input signal into a carrier frequency band, and 7b denotes an auxiliary standby transmission frequency which is switched and used when the active transmission frequency converter 1 (7a) is out of order. The conversion section 8a is a working transmission high-frequency section 1 for amplifying an input signal, and the working transmission high-frequency section 1 and 8b are protection spare transmission high-frequency sections that are switched and used when the working transmission high-frequency section 1 (8a) breaks down. Switch SW, which switches and outputs one of the output signals
0 is an RF output terminal for outputting an RF signal, 11 is an RF input terminal for inputting an RF signal, 12 is a signal distributor HYB for distributing an input signal, 13a is an active reception high-frequency unit 1 for amplifying the input signal, 13b is the active receiving high frequency unit 1
(13a) a spare standby high-frequency unit for switching which is used in the event of a failure or the like;
The active receiving frequency converters 1 and 14b for converting signals are used as spare standby receiving frequency converters that are switched and used when the active receiving frequency converter 1 (14a) fails or the like.
15 is a switch SW for switching and outputting any of the input signals, 17 is a signal distributor HYB for distributing the input signal, 16 is a transmission cable connecting between the switch SW15 and the signal distributor HYB17, 18a
Is a working demodulator 1 for demodulating an input signal, 18b is a spare spare demodulator used for switching when the working demodulator 1 (18a) is out of order, and 19 is any one of the input signals. A changeover switch SW for switching and outputting,
Reference numeral 20 denotes a BB output terminal that outputs a BB signal.

Next, the operation of the IDU and ODU on the transmitting side will be described. As shown in FIG. 1, BB input terminal 1
The input BB signal is divided into two signals by the signal distributor HYB2.
And is modulated by the working modulator 1 (3a). The other signal distributed by the signal distributor HYB2 is modulated by the preliminary modulator 2 (3b). One of the working modulator 1 (3a) and the spare modulator 2 (3b) is selected as an IDU output signal by the changeover switch SW4.
The selected IDU output signal is split into two by the ODU-side signal distributor 6 connected to the transmission cable 5, and is conveyed by the working transmission frequency converter 1 (7a) and the spare transmission frequency converter 2 (7b). It is converted into a frequency band, and is amplified by the active transmitting high frequency unit 1 (8a) and the standby transmitting high frequency unit 2 (8b). Either the active transmission high-frequency unit 1 (8a) or the standby transmission high-frequency unit 2 (8b) is selected by the switch SW9 and output to the RF output terminal 10. The changeover switch SW4 automatically switches instantaneously when the modulation unit 1 (3a) has a failure, and switches the spare modulation unit 2 (3b).
Make a selection. The change-over switch SW9 automatically switches instantaneously when the transmission frequency conversion unit 1 (7a) or the transmission high-frequency unit 1 (8a) is out of order.
(7b) or the preliminary transmission high frequency unit 2 (8b) is selected.

The procedure for automatic switching on the transmitting side will be described in detail. Modulation unit 1 (3a) or preliminary modulation unit 2
The failure detection signal output from (3b) is collected by an alarm control processing unit (not shown) on the IDU side to transmit an alarm signal, and at the same time, generates a switching control signal and is transmitted to the changeover switch SW4 to perform the changeover control. Done. Similarly, the failure detection signal output from the transmission frequency conversion unit 1 (7a) or the standby transmission frequency conversion unit 2 (7b) and the failure detection signal output from the transmission high frequency unit 1 (8a) or the standby transmission high frequency unit 2 (8b). The failure detection signal is collected by an alarm control processing unit (not shown) on the ODU side to send out an alarm signal, and at the same time, generates a switching control signal and transmits it to the switch SW9 to perform switching control. This eliminates the need to exchange the alarm signal and the switching control signal between the IDU and the ODU as described in the related art, and eliminates the need for the IDU.
It is possible to control the generation and switching of an independent alarm within the ODU, and to control the generation and switching of the independent alarm within the ODU.

Next, the operation of the IDU and ODU on the receiving side will be described. The RF signal input from the RF input terminal 11 is divided into two signals by the signal distributor HYB12, amplified by the active receiving high-frequency unit 1 (13a), and then amplified by the active receiving frequency conversion unit 1 (14a) to the IF band. Converted to a signal. The other signal distributed by the signal distributor HYB12 is amplified by the preliminary receiving high-frequency unit 2 (13b), and then converted into an IF band signal by the preliminary receiving frequency conversion unit 2 (14b). The receiving frequency converter 1 is switched by the changeover switch SW15.
Either (14a) or the reception frequency converter 2 (14b) is selected as the ODU output signal. The selected ODU output signal is divided into two by an IDU-side signal distributor HYB17 connected to the transmission cable 16, and transmitted to the demodulation unit 1 (18a) and the preliminary demodulation unit 2 (18b) to be converted into a BB signal. Demodulated. Changeover switch 19
Is the demodulation unit 1 (18a) or the preliminary demodulation unit 2 (18b)
Is selected, and the selected BB signal is selected.
The signal is output to the BB output terminal 20. Changeover switch S
W15 is automatically switched instantaneously when the reception high frequency unit 1 (13a) or the reception frequency conversion unit 1 (14a) is out of order, and the standby reception high frequency unit 2 (13a) or the standby reception frequency conversion unit 2 (14a). Make a selection. Changeover switch SW
Reference numeral 19 automatically switches instantaneously when the demodulation unit 1 (18a) has a failure, and selects the spare demodulation unit 2 (18b).

The procedure for automatic switching on the transmitting side will be described in detail. Failure detection signal output from reception high-frequency unit 1 (13a) or standby reception high-frequency unit 2 (13b), and failure detection signal output from reception frequency conversion unit 1 (14a) or standby reception frequency conversion unit 2 (14b) Means that the alarm control processing unit (not shown) on the ODU side collects and sends an alarm signal, generates a switching control signal, transmits the generated switching control signal to the switch SW15, and performs switching control. Similarly, a failure detection signal output from the demodulation unit 1 (18a) or the standby demodulation unit 2 (18b) is collected by an alarm control processing unit (not shown) on the IDU side to transmit an alarm signal and to switch the alarm signal. A control signal is generated and transmitted to the changeover switch SW19 to perform changeover control. This eliminates the need to exchange an alarm signal and a switching control signal between the ODU and the IDU as described in the related art, and controls the generation and switching of an independent alarm within the ODU and the switching within the IDU. Independent alarm generation and switching control.

As described above, according to the first embodiment, the IDU
Eliminates the need to exchange alarm signals and switching control signals between the ODU and the ODU, and enables independent alarm generation and switching control at each of the IDU and ODU,
By using two transmission cables between the IDU and the ODU, it is possible to simplify the installation work of the IDU, the ODU, etc., reduce the cost of the entire equipment, and simplify the maintenance of the transmission cable.

Embodiment 2 FIG. 2 is a block diagram showing a radio method for switching a radio apparatus from working to standby according to a second embodiment of the present invention. 2 that have the same reference numerals as those in FIG. 1 have the same functions, and a description thereof will be omitted. FIG.
, A switch SW 170 for transmitting the IDU output signal transmitted by the transmission cable 5 to one of the transmission frequency converter 1 (7a) and the spare transmission frequency converter 2 (7b); Transmission cable 5
The ODU output signal transmitted by the demodulation unit 1 (18)
a) or a switch SW for transmitting a signal to one of the preliminary demodulation units 2 (18b).

In the first embodiment, the ODU on the transmitting side is
Although the signal distributor 6 is used in the input unit, a switch SW60 may be used instead of the signal distributor 6. As a result,
When a failure occurs in the active transmission route such as the transmission frequency conversion unit 1 (7a), the ODU input unit on the transmitting side can switch to the backup transmission route such as the backup transmission frequency conversion unit 2 (7b). Further, although the signal distributor 17 is used at the IDU input unit on the receiving side, a switch SW170 may be used instead of the signal distributor 17. As a result, the demodulation unit 1 (1
If a failure occurs in 8a), it is possible to switch to the preliminary demodulation unit 2 (18b) at the IDU input unit on the receiving side.

As described above, according to the second embodiment, a failure can be dealt with in the ODU input unit on the transmitting side by using the changeover switch SW60 in the ODU input unit on the transmitting side. By using the changeover switch SW170, a failure can be dealt with in the IDU input unit on the receiving side.

Embodiment 3 FIG. 3 is a block diagram showing a wireless method for switching a wireless device from working to standby according to a third embodiment of the present invention. 3 that have the same reference numerals as those in FIG. 1 have the same functions, and a description thereof will be omitted. FIG.
In the figure, reference numeral 90 denotes a signal synthesizing unit for synthesizing the signals of the transmitting high frequency unit 1 (8a) and the preliminary transmitting high frequency unit 2 (8b).

In the first embodiment, the ODU on the transmitting side is
Although the changeover switch SW9 is used in the output unit, local synchronization is performed by the transmission frequency conversion unit 1 (7a) and the spare transmission frequency conversion unit 2 (7b), and the signal synthesizer 90 is used instead of the changeover switch SW9. Can be. By using the local oscillation signal whose frequency is synchronized between the transmission frequency conversion unit 1 (7a) and the transmission frequency conversion unit 2 (7b), the output signal of each transmission frequency conversion unit can be synchronized. Therefore, signals can be combined as a single wave even after being amplified in each transmission high-frequency unit.

As described above, according to the third embodiment, the transmission frequency converter 1 (7a) and the spare transmission frequency converter 2 (7
In b), local synchronization is performed, and a signal combined as a single wave by the combining unit 90 can be obtained.

Embodiment 4 FIG. 4 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 4 of the present invention. 4 that have the same reference numerals as those in FIG. 1 have the same functions, and a description thereof will be omitted. FIG.
, An interface unit 21 for transmitting a transmission signal selected by the changeover switch SW4 to an interface unit INT22 described below, and transmitting a reception signal transmitted from the interface unit INT22 to a reception-side IDU input unit;
Reference numeral 22 denotes an interface unit for transmitting the reception signal selected by the changeover switch SW15 to the interface unit INT21 and transmitting the transmission signal transmitted from the interface unit INT21 to the transmission-side ODU input unit. Reference numeral 23 denotes an ODU for demultiplexing the input signal. A demultiplexing unit 24 is a demultiplexing unit on the IDU side for demultiplexing the input signal. The signal distributor H17 has the same function as the signal distributor HYB17.

In the first embodiment, the output signal of the modulation unit 1 (3a) or the preliminary modulation unit 2 (3b) is selected by the switch SW4 at the transmission-side IDU output unit, and then the transmission signal is transmitted via the transmission cable 5. The transmission ODU input was connected to the signal distributor HYB6. In the fourth embodiment, the transmission signal from the transmission-side IDU and the reception signal from the reception-side ODU output unit are combined together in the interface unit INT21, and the transmission signal is transmitted from the interface unit INT21 to the interface unit by the single transmission cable 5. Transmit to INT22. In the transmitting ODU, the transmission signal transmitted by the interface INT22 is distributed, and the divided transmission signal is demultiplexed by the demultiplexer 23, and then transmitted by the signal distributor HYB6 to the transmission frequency converter 1 (7a) and the preliminary transmission. The signal is distributed to the frequency converter 2 (7b).

On the other hand, the changeover switch S
W15 switches and selects the output of the reception high-frequency unit 1 (13a) or the reception high-frequency unit 2 (13b), and the interface unit I
The receiving signal from the receiving ODU and the transmitting IDU in NT22
The transmission signal from the output unit is synthesized together, and the reception signal is transmitted from the interface unit INT22 to the interface unit INT21 via one transmission cable 5. Receiver ID
In U, the received signal transmitted by the interface INT21 is distributed, and the distributed received signal is divided by the demultiplexer 2
4, the signal is distributed by the signal distributor H17, and the reception frequency conversion unit 1 (14a) and the preliminary reception frequency conversion unit 2 (1
4b).

As described above, according to the fourth embodiment, the IDU
An interface unit for combining a transmission signal and a reception signal is provided on each of the ODU side and the ODU side, so that the IDU and the OD
U and one transmission cable.
It is possible to further simplify the installation work of U, ODU, etc., reduce the cost of the entire equipment, and simplify the maintenance of the transmission cable.

Fifth Embodiment FIG. 5 is a block diagram showing a wireless method for switching a wireless device from working to standby according to a fifth embodiment of the present invention. 5 that have the same reference numerals as those in FIG. 4 have the same functions, and a description thereof will be omitted. In Embodiment 4 described above, the demultiplexing unit 2
4 is divided by the signal distributor H17 into the reception frequency converter 1 (14a) and the spare reception frequency converter 2 (14).
b), in the fifth embodiment, the reception frequency conversion unit 1 (14a) and the preliminary reception frequency conversion unit 2
(14b) can be transferred from the receiving IDU to the receiving ODU. Therefore, the output of the reception high frequency unit 1 (13a) is converted by the reception frequency conversion unit 1 (14a), and the output of the standby reception high frequency unit 2 (13b) is converted to the standby reception frequency conversion unit 2
(14b), and by the changeover switch SW15,
The output of any one of the reception frequency conversion units can be selected.

As described above, according to the fifth embodiment, reception frequency conversion section 1 (14a) and preliminary reception frequency conversion section 2
By moving (14b) from the receiving-side IDU to the receiving-side ODU, the receiving-side ODU can perform frequency conversion of the received signal.

Embodiment 6 FIG. 6 is a block diagram showing a wireless method for switching a wireless device from working to standby according to a sixth embodiment of the present invention. 6 that have the same reference numerals as those in FIG. 4 have the same functions, and a description thereof will be omitted. In the above-described fourth embodiment, in the transmission-side ODU, the transmission signal is converted by the signal distributor HYB6 into the transmission frequency conversion unit 1 (7
a) and the spare transmission frequency conversion unit 2 (7b), but in the sixth embodiment, the transmission frequency conversion unit 1 (7b)
a) and the spare transmission frequency converter 2 (7b)
It can be transferred from the DU to the sending IDU. Therefore, the output of the modulation unit 1 (3a) is transmitted to the transmission frequency conversion unit 1 (7
a), the output of the preliminary modulation unit 2 (3b) is converted by the preliminary transmission frequency conversion unit 2 (7b), and the changeover switch SW
According to 4, the output of one of the transmission frequency converters can be selected.

As described above, according to the sixth embodiment, transmission frequency converter 1 (7a) and spare transmission frequency converter 2
By moving (7b) from the transmitting-side ODU to the transmitting-side IDU, the transmitting-side IDU can perform frequency conversion of a transmission signal.

Embodiment 7 FIG. 7 is a block diagram showing a wireless method for switching a wireless device from working to standby according to a seventh embodiment of the present invention. 7 that have the same reference numerals as those in FIG. 4 have the same functions, and a description thereof will be omitted. FIG.
In the figure, reference numeral 60 denotes a changeover switch SW 170 for transmitting the transmission signal demultiplexed by the demultiplexer 23 to either the transmission frequency converter 1 (7a) or the spare transmission frequency converter 2 (7b). Is a changeover switch SW that transmits the received signal demultiplexed by the demultiplexing unit 24 to either the reception frequency conversion unit 1 (14a) or the standby reception frequency conversion unit 2 (14b).

In the fourth embodiment, the ODU on the transmitting side is
Although the signal distributor HYB6 is used at the input unit, the signal distributor H
A changeover switch SW60 may be used instead of YB6. As a result, when a failure occurs in the active transmission route such as the transmission frequency conversion unit 1 (7a), the transmission side ODU input unit can switch to the backup transmission route such as the backup transmission frequency conversion unit 2 (7b). Further, although the signal distributor H17 is used at the IDU input unit on the receiving side, a switch SW170 may be used instead of the signal distributor H17. As a result, when a failure occurs in the active reception route of the demodulation unit 1 (18a) or the like, the standby demodulation unit 2 is input to the IDU input unit on the receiving side.
It is also possible to switch to a preliminary reception route such as (18b).

As described above, according to the seventh embodiment, by using the changeover switch SW60 in the ODU input unit on the transmitting side, a failure can be dealt with in the ODU input unit on the transmitting side, and the IDU input unit on the receiving side can be dealt with. By using the changeover switch SW170, a failure can be dealt with in the IDU input unit on the receiving side.

Eighth Embodiment FIG. 8 is a block diagram showing a wireless method for switching a wireless device from working to standby according to an eighth embodiment of the present invention. 8 that have the same reference numerals as those in FIG. 5 have the same functions, and a description thereof will be omitted. FIG.
In the figure, reference numeral 60 denotes a changeover switch SW 170 for transmitting the transmission signal demultiplexed by the demultiplexer 23 to either the transmission frequency converter 1 (7a) or the spare transmission frequency converter 2 (7b). Is a changeover switch SW that transmits the received signal demultiplexed by the demultiplexing unit 24 to either the reception frequency conversion unit 1 (14a) or the standby reception frequency conversion unit 2 (14b).

In the fifth embodiment, the ODU on the transmitting side is
Although the signal distributor HYB6 is used at the input unit, the signal distributor H
A changeover switch SW60 may be used instead of YB6. As a result, when a failure occurs in the active transmission route such as the transmission frequency conversion unit 1 (7a), the transmission side ODU input unit can switch to the backup transmission route such as the backup transmission frequency conversion unit 2 (7b). Further, although the signal distributor H17 is used at the IDU input unit on the receiving side, a switch SW170 may be used instead of the signal distributor H17. As a result, when a failure occurs in the active reception route of the demodulation unit 1 (18a) or the like, the standby demodulation unit 2 is input to the IDU input unit on the receiving side.
It is also possible to switch to a preliminary reception route such as (18b).

As described above, according to the eighth embodiment, by using the changeover switch SW60 in the ODU input unit on the transmitting side, a failure can be dealt with in the ODU input unit on the transmitting side, and the IDU input unit on the receiving side can be dealt with. By using the changeover switch SW170, a failure can be dealt with in the IDU input unit on the receiving side.

Embodiment 9 FIG. 9 is a block diagram showing a wireless method for switching a wireless device from working to standby according to a ninth embodiment of the present invention. 9 that have the same reference numerals as those in FIG. 6 have the same functions, and a description thereof is omitted. FIG.
In the figure, reference numeral 60 denotes a changeover switch SW that transmits the transmission signal demultiplexed by the demultiplexing unit 23 to one of the transmission high-frequency unit 1 (8a) and the preliminary transmission high-frequency unit 2 (8b). A changeover switch SW that transmits the received signal split by the wave unit 24 to either the reception frequency conversion unit 1 (14a) or the standby reception frequency conversion unit 2 (14b).

In the sixth embodiment, the ODU on the transmitting side is
Although the signal distributor HYB6 is used at the input unit, the signal distributor H
A changeover switch SW60 may be used instead of YB6. As a result, when a failure occurs in the transmission high frequency unit 1 (8a), the backup high frequency unit 2 (8
It is also possible to switch to b). Further, the IDU of the receiving side
Although the signal distributor H17 was used at the input unit, the signal distributor H1 was used.
7, a changeover switch SW170 may be used.
As a result, if a failure occurs in the active reception route such as the demodulation unit 1 (18a), the IDU input unit on the receiving side can switch to the standby reception route such as the auxiliary demodulation unit 2 (18b).

As described above, according to the ninth embodiment, by using the changeover switch SW60 in the ODU input unit on the transmitting side, it is possible to cope with a failure in the ODU input unit on the transmitting side, and the IDU input unit on the receiving side. By using the changeover switch SW170, a failure can be dealt with in the IDU input unit on the receiving side.

Embodiment 10 FIG. 10 is a block diagram showing a wireless method for switching a wireless device from working to standby according to an embodiment 10 of the present invention. 10 having the same reference numerals as those in FIG. 4 have the same functions, and the description thereof will be omitted. In FIG. 10, reference numeral 50 denotes an optical fiber cable for transmitting an optical signal.

In the fourth embodiment, the transmission cable 5
In the tenth embodiment, an optical fiber cable for transmitting an optical signal can be used instead of the transmission cable 5 in the tenth embodiment. When transmitting, the interface section IN
At T21, the transmission signal from the IDU side is converted from an electric signal into an optical signal, and the converted optical signal is transmitted to the interface unit INT22 on the ODU side via the optical fiber cable 50 for transmission and reception. Interface part I
In the NT22, the optical signal transmitted from the IDU is converted from an optical signal into an electric signal. Similarly, when receiving, the interface unit INT22 converts the transmission signal from the ODU side from an electrical signal to an optical signal, and converts the converted optical signal to the IDU side by the optical fiber cable 50 for transmission and reception. Interface part INT2
Transmit to 1. ODU in the interface part INT21
The optical signal transmitted from the side is converted from an optical signal into an electric signal.

As described above, according to the tenth embodiment, an optical fiber cable for transmitting an optical signal can be used instead of a transmission cable for transmitting an electric signal. Can be facilitated.

Eleventh Embodiment FIG. 11 is a block diagram showing a radio method for switching a radio apparatus from working to standby according to an eleventh embodiment of the present invention. 11 that have the same reference numerals as those in FIG. 5 have the same functions, and a description thereof will be omitted. In FIG. 11, reference numeral 50 denotes an optical fiber cable for transmitting an optical signal.

In the fifth embodiment, the transmission cable 5
Although the electric signal is transmitted between the IDU side and the ODU side by using the above, an optical fiber cable for transmitting an optical signal can be used instead of the transmission cable 5 in the eleventh embodiment. When transmitting, the interface section IN
At T21, the transmission signal from the IDU side is converted from an electric signal into an optical signal, and the converted optical signal is transmitted to the interface unit INT22 on the ODU side via the optical fiber cable 50 for transmission and reception. Interface part I
In the NT22, the optical signal transmitted from the IDU is converted from an optical signal into an electric signal. Similarly, when receiving, the interface unit INT22 converts the transmission signal from the ODU side from an electrical signal to an optical signal, and converts the converted optical signal to the IDU side by the optical fiber cable 50 for transmission and reception. Interface part INT2
Transmit to 1. ODU in the interface part INT21
The optical signal transmitted from the side is converted from an optical signal into an electric signal.

As described above, according to the eleventh embodiment, an optical fiber cable for transmitting an optical signal can be used instead of a transmission cable for transmitting an electric signal. Can be facilitated.

Embodiment 12 FIG. 12 is a block diagram showing a radio method for switching a radio apparatus from working to standby according to a twelfth embodiment of the present invention. 12 having the same reference numerals as those in FIG. 6 have the same functions, and the description will be omitted. In FIG. 12, reference numeral 50 denotes an optical fiber cable for transmitting an optical signal.

In the sixth embodiment, the transmission cable 5
Although the electric signal is transmitted between the IDU side and the ODU side using the above, an optical fiber cable for transmitting an optical signal can be used instead of the transmission cable 5 in the twelfth embodiment. When transmitting, the interface section IN
At T21, the transmission signal from the IDU side is converted from an electric signal into an optical signal, and the converted optical signal is transmitted to the interface unit INT22 on the ODU side via the optical fiber cable 50 for transmission and reception. Interface part I
In the NT22, the optical signal transmitted from the IDU is converted from an optical signal into an electric signal. Similarly, when receiving, the interface unit INT22 converts the transmission signal from the ODU side from an electrical signal to an optical signal, and converts the converted optical signal to the IDU side by the optical fiber cable 50 for transmission and reception. Interface part INT2
Transmit to 1. ODU in the interface part INT21
The optical signal transmitted from the side is converted from an optical signal into an electric signal.

As described above, according to the twelfth embodiment, an optical fiber cable for transmitting an optical signal can be used in place of a transmission cable for transmitting an electric signal. Can be facilitated.

Embodiment 13 FIG. 13 shows a radio apparatus according to Embodiment 13 of the present invention. 13 that have the same reference numerals as those in FIG. 4 have the same functions, and a description thereof will be omitted. The thirteenth embodiment has a configuration in which only the working system is provided in the fourth embodiment described above. Specifically, in FIG. 4, the transmitting side is a signal distributor HYB
2, modulation section 2 (3b), changeover switch SW4, signal distributor HYB6, transmission conversion section 2 (7b), transmission high-frequency section 2
(8b) and the changeover switch SW9 are eliminated from the components. On the receiving side, the signal distributor HYB12, the reception high frequency unit 2 (13b), the changeover switch SW15, the signal distributor HY
B17, reception conversion unit 2 (14b), demodulation unit 2 (18b)
And the changeover switch SW19 is eliminated from the components.

As described above, according to the thirteenth embodiment, in the fourth embodiment, the wireless device including only the active system is used, so that the installation work of the IDU, the ODU, etc. can be further simplified, and the cost of the entire equipment can be reduced. Can be realized.

Embodiment 14 FIG. 14 shows a radio apparatus according to Embodiment 14 of the present invention. 14 that have the same reference numerals as those in FIG. 5 have the same functions, and a description thereof will be omitted. The fourteenth embodiment has a configuration in which only the working system is provided in the fifth embodiment described above. Specifically, in FIG. 5, the transmitting side is a signal distributor HYB
2, modulation section 2 (3b), changeover switch SW4, signal distributor HYB6, transmission conversion section 2 (7b), transmission high-frequency section 2
(8b) and the changeover switch SW9 are eliminated from the components. On the receiving side, the signal distributor HYB12, the reception high frequency unit 2 (13b), the reception converter 2 (14b), the changeover switch SW15, the signal distributor HYB17, and the demodulator 2 (18b)
And the changeover switch SW19 is eliminated from the components.

As described above, according to the fourteenth embodiment, the wireless device consisting of only the active system in the fifth embodiment can further simplify the installation work for IDUs and ODUs and reduce the cost of the entire equipment. Can be realized.

Embodiment 15 FIG. 15 shows a radio apparatus according to Embodiment 15 of the present invention. 15 having the same reference numerals as those in FIG. 6 have the same functions, and the description thereof will be omitted. The fifteenth embodiment has a configuration in which only the working system is provided in the sixth embodiment described above. Specifically, in FIG. 6, the transmitting side is a signal distributor HYB
2, modulation section 2 (3b), transmission conversion section 2 (7b), changeover switch SW4, signal distributor HYB6, transmission high-frequency section 2
(8b) and the changeover switch SW9 are eliminated from the components. On the receiving side, the signal distributor HYB12, the reception high frequency unit 2 (13b), the changeover switch SW15, the signal distributor HY
B17, reception conversion unit 2 (14b), demodulation unit 2 (18b)
And the changeover switch SW19 is eliminated from the components.

As described above, according to the fifteenth embodiment, in the sixth embodiment, the wireless device including only the active system is used, thereby further simplifying the installation work of the IDU, ODU, etc., and reducing the cost of the entire equipment. Can be realized.

Embodiment 16 FIG. 16 shows a radio apparatus according to Embodiment 16 of the present invention. 16 that have the same reference numerals as those in FIG. 10 have the same functions, and a description thereof will be omitted. The sixteenth embodiment is different from the tenth embodiment described above.
Has a configuration provided with only the working system. Specifically, in FIG. 10, the transmitting side includes a signal distributor HYB2, a modulator 2 (3b), a changeover switch SW4, a signal distributor HYB6, a transmission converter 2 (7b), a transmission high frequency unit 2 (8b), and a changeover switch. SW9 is no longer a component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the changeover switch SW15, the signal distributor HYB17, the reception converter 2 (14b), and the demodulator 2 (18)
b) and the changeover switch SW19 are eliminated from the components.

As described above, according to the sixteenth embodiment, a wireless device consisting of only the active system is used in the tenth embodiment, thereby further simplifying installation work for IDUs and ODUs, and reducing the cost of the entire equipment. Can be realized.

Seventeenth Embodiment FIG. 17 shows a wireless device according to a seventeenth embodiment of the present invention. 17 having the same reference numerals as those in FIG. 11 have the same functions, and thus the description thereof will be omitted. Embodiment 17 is different from Embodiment 11 described above.
Has a configuration provided with only the working system. Specifically, in FIG. 11, the transmitting side includes a signal distributor HYB2, a modulator 2 (3b), a switch SW4, a signal distributor HYB6, a transmission converter 2 (7b), a transmission high frequency unit 2 (8b), and a switch. SW9 is no longer a component. On the receiving side, the signal distributor HYB12, the reception high frequency unit 2 (13b), the reception conversion unit 2 (14b), the changeover switch SW15, the signal distributor HYB17, and the demodulation unit 2 (18)
b) and the changeover switch SW19 are eliminated from the components.

As described above, according to the seventeenth embodiment, by using the wireless device consisting only of the active system in the eleventh embodiment, it is possible to further simplify the installation work for IDUs, ODUs, etc. and reduce the cost of the entire equipment. Can be realized.

Embodiment 18 FIG. 18 shows a radio apparatus according to Embodiment 18 of the present invention. 18 that have the same reference numerals as those in FIG. 12 have the same functions, and a description thereof will be omitted. Embodiment 18 is different from Embodiment 12 described above.
Has a configuration provided with only the working system. Specifically, in FIG. 12, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a transmission conversion unit 2 (7b),
The changeover switch SW4, the signal distributor HYB6, the transmission high frequency unit 2 (8b), and the changeover switch SW9 are eliminated from the components. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the changeover switch SW15, the signal distributor HYB17, the reception converter 2 (14b), and the demodulator 2 (18)
b) and the changeover switch SW19 are eliminated from the components.

As described above, according to the eighteenth embodiment, a wireless device consisting of only the active system is used in the twelfth embodiment, thereby further simplifying installation work for IDUs and ODUs, and reducing the cost of the entire equipment. Can be realized.

[0081]

As described above, according to the wireless method and the wireless device of the present invention, by using one or two transmission cables between the IDU and the ODU, the IDU,
It is possible to provide a wireless method and a wireless device that can simplify installation work of an ODU or the like, reduce the cost of the entire facility, and simplify maintenance of a transmission cable.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a wireless method for switching a wireless device from working to standby according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram illustrating a wireless method for switching a wireless device from working to standby according to Embodiment 2 of the present invention.

FIG. 3 is a block diagram illustrating a wireless method for switching a wireless device from working to standby according to Embodiment 3 of the present invention.

FIG. 4 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 4 of the present invention.

FIG. 5 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 5 of the present invention.

FIG. 6 is a block diagram illustrating a wireless method for switching a wireless device from working to standby according to a sixth embodiment of the present invention.

FIG. 7 is a block diagram showing a wireless method for switching a wireless device from working to standby according to a seventh embodiment of the present invention.

FIG. 8 is a block diagram illustrating a wireless method for switching a wireless device from working to standby according to Embodiment 8 of the present invention.

FIG. 9 is a block diagram illustrating a wireless method for switching a wireless device from working to standby according to Embodiment 9 of the present invention.

FIG. 10 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 10 of the present invention.

FIG. 11 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 11 of the present invention.

FIG. 12 is a block diagram showing a wireless method for switching a wireless device from working to standby according to Embodiment 12 of the present invention.

FIG. 13 is a block diagram showing a wireless device according to Embodiment 13 of the present invention.

FIG. 14 is a block diagram showing a wireless device according to Embodiment 14 of the present invention.

FIG. 15 is a block diagram showing a wireless device according to Embodiment 15 of the present invention.

FIG. 16 is a block diagram showing a wireless device according to Embodiment 16 of the present invention.

FIG. 17 is a block diagram showing a wireless device according to Embodiment 17 of the present invention.

FIG. 18 is a block diagram showing a wireless device according to Embodiment 18 of the present invention.

FIG. 19 is a block diagram showing a wireless method for switching from working to standby in a conventional wireless device.

FIG. 20 is a block diagram illustrating a wireless method of only a working system in a conventional wireless device.

[Explanation of symbols]

1 BB input terminal, 2, 6, 12 signal distributor HY
B, 3a modulation section, 3b preliminary modulation section, 4, 9, 1
5, 19, 170 changeover switch, 5, 5a transmission cable, 5b preliminary transmission cable, 7a transmission frequency conversion unit, 7b preliminary transmission frequency conversion unit, 8a transmission high frequency unit, 8b preliminary transmission high frequency unit, 10 RF output terminal, 11 RF Input terminal, 13a reception high frequency section, 13b preliminary reception high frequency section, 14a reception frequency conversion section, 14b preliminary reception frequency conversion section, 16, 1
6a transmission cable, 16b spare transmission cable, 1
7 Signal distributor H, 18a demodulation unit, 18b preliminary demodulation unit, 20 BB output terminal, 21, 22 interface unit, 23, 24 demultiplexer, 90 signal synthesis unit.

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 5K021 AA05 CC01 CC02 CC03 CC04 DD02 FF04 FF11 5K059 CC06 DD01 DD24 DD25 DD27 5K060 CC04 CC11 CC17 CC19 HH01 HH06 HH09 HH35 HH39 JJ23 5K062 AB10 AD04 AE03 AE04 AE01 BA01

Claims (21)

[Claims] 1. A modulator comprising: a working modulator for modulating an input signal; and a spare modulator for protection of the working modulator. A working transmission frequency converter for converting a frequency of the input signal into a carrier frequency band. A transmission frequency conversion unit having a standby transmission frequency conversion unit that is a backup of the current transmission frequency conversion unit; a current transmission high frequency unit that amplifies an input signal; and a backup transmission high frequency unit that is a backup of the current transmission high frequency unit. , A receiving high-frequency part having an active receiving high-frequency part for amplifying an input signal and a standby receiving high-frequency part for protection of the active receiving high-frequency part, and a current receiving frequency for converting the input signal to an IF signal A receiving frequency converting unit having a converting unit and a spare receiving frequency converting unit for standby of the working receiving frequency converting unit; a working demodulating unit for demodulating an input signal; A wireless method for switching between working and protection in a wireless device provided with a demodulation unit having a protection demodulation unit for use, wherein the transmitting side transmits an input baseband signal to a working modulation unit or a protection modulation unit. A baseband signal distributing step for distributing, a working modulation step for modulating the signal distributed in the baseband signal distributing step with a working modulator, and a signal dispersing in the baseband signal distributing step for modulating the signal distributed in the baseband signal distributing step. A preliminary modulation step, a transmission signal selection step of selecting any of the signals modulated in the modulation step and the preliminary modulation step, and a signal selected in the transmission signal selection step via a transmission cable. A first connection step of connecting to a transmission conversion unit, and a working transmission frequency conversion of the signal connected in the first connection step A working transmission frequency converting step of converting the signal in the working transmission frequency converting step, a working transmission RF step of amplifying the converted signal in the working transmission high frequency part, and a spare transmission frequency of the signal connected in the first connection step. A preliminary transmission frequency conversion step of converting the signal by the conversion unit; a preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high frequency unit; and an amplification in the active transmission RF step and the preliminary transmission RF step. And a transmission output step of outputting a signal based on the received signal, wherein the transmission signal selection step switches the current modulation section to a standby modulation section when the current modulation section fails, and the transmission output step includes a current transmission frequency. When the conversion unit or the active transmission high frequency unit fails, the active transmission frequency conversion unit and the active transmission high frequency A receiving unit that switches a received RF signal to a working receiving high-frequency unit or a standby receiving high-frequency unit; and a receiving signal distributing step. A current receiving RF step of amplifying the signal distributed by the current receiving high-frequency unit, a current receiving frequency converting step of converting the signal amplified by the receiving RF step into an IF signal by a current receiving frequency conversion unit, and the received signal A preliminary reception RF step of amplifying the signal distributed in the distribution step in a preliminary reception high frequency section, and a preliminary reception frequency conversion step of converting the signal amplified in the preliminary reception RF step into an IF signal in a preliminary reception frequency conversion section, Of the signals converted in the working reception frequency conversion step and the preliminary reception frequency conversion step. A reception signal selection step of selecting any one signal; a second connection step of connecting the signal selected in the reception signal selection step to a demodulation unit via a reception cable; and a connection in the second connection step A working demodulation step of demodulating a signal in a working demodulation section; a preliminary demodulation step of demodulating a signal connected in the second connection step in a preliminary demodulation section; a signal demodulated in the working demodulation step and the preliminary demodulation step. And a receiving output selecting step of selecting and outputting any one of the signals. The receiving signal selecting step includes the step of selecting the active receiving high-frequency unit or the active receiving high-frequency unit and the active receiving high-frequency unit when the active receiving high-frequency unit or the active receiving frequency conversion unit fails. The receiving frequency conversion unit is switched to a standby reception high frequency unit and a standby reception frequency conversion unit, and the reception output selecting step includes a working demodulation unit. If failed, the wireless method characterized by switching the the developing demodulation unit to the standby demodulator. 2. The first connection step distributes the signal selected in the transmission signal selection step to a working transmission frequency conversion unit and a protection transmission frequency conversion unit, and the transmission output step includes the step of: The preliminary transmission R
Selecting and outputting any one of the signals amplified in the F step, and the second connecting step distributes the signal selected in the received signal selecting step to a demodulation unit and a spare demodulation unit. The wireless method according to claim 1, wherein: 3. The first connection step switches the signal selected in the transmission signal selection step to either a working transmission frequency conversion unit or a spare transmission frequency conversion unit and connects the signal, and the transmission output step includes: Any one of the signals amplified in the transmission RF step and the preliminary transmission RF step is selected and output, and in the second connection step, the signal selected in the reception signal selection step is used as a working demodulation unit. The wireless method according to claim 1, wherein the connection is switched to any one of the preliminary demodulation units. 4. The first connection step distributes the signal selected in the transmission signal selection step to a working transmission frequency conversion unit and a spare transmission frequency conversion unit, and the transmission output step includes the step of: The preliminary transmission R
2. The method according to claim 1, wherein the signal amplified in the step F is combined and output, and the second connection step distributes the signal selected in the received signal selection step to a demodulation unit and a spare demodulation unit. The described wireless method. 5. A modulation section having a working modulation section for modulating an input signal and a spare modulation section which is a standby for the working modulation section, and a working transmission frequency conversion section for converting the frequency of the input signal into a carrier frequency band. A transmission frequency conversion unit having a standby transmission frequency conversion unit that is a backup of the current transmission frequency conversion unit; a current transmission high frequency unit that amplifies an input signal; and a backup transmission high frequency unit that is a backup of the current transmission high frequency unit. , A receiving high-frequency part having an active receiving high-frequency part for amplifying an input signal and a standby receiving high-frequency part for protection of the active receiving high-frequency part, and a current receiving frequency for converting the input signal to an IF signal A receiving frequency converting unit having a converting unit and a spare receiving frequency converting unit for standby of the working receiving frequency converting unit; a working demodulating unit for demodulating an input signal; And a standby device in a wireless device including an indoor device having the modulation unit and the demodulation unit, and an outdoor device having the transmission high-frequency unit and the reception high-frequency unit. The indoor apparatus side transmitting step includes: distributing the input baseband signal to a working modulator and a spare modulator; and distributing the baseband signal in the baseband signal distributing step. A working modulation step of modulating the resulting signal with a working modulation section, a pre-modulation step of modulating a signal distributed in the baseband signal distribution step with a spare modulation section, and modulating in the working modulation step and the preliminary modulation step. If any one of the selected signals is selected and the working modulator fails, the working modulator is switched to the spare modulator. A transmitting signal selecting step, and a transmitting side transmitting step of transmitting the signal selected in the transmitting signal selecting step to the outdoor device side via a transmission cable, wherein the outdoor device side transmitting step includes: A transmitting signal distributing step of distributing the transmitted signal to a transmitting high frequency unit side; a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step; A transmitting-side demultiplexing signal distribution step of distributing a signal to a working transmission frequency conversion unit and a backup transmission frequency conversion unit; and a working transmission conversion for converting the signal distributed in the transmission-side demultiplexing signal distribution step by a working transmission frequency conversion unit. An active transmission RF step of amplifying a signal converted in the active transmission conversion step by an active transmission high frequency unit; A pre-transmission conversion step of converting the signal distributed in the step by the pre-transmission frequency conversion section; a pre-transmission RF step of amplifying the signal converted in the pre-transmission conversion step by the pre-transmission high frequency section; Selecting and outputting any one of the signals amplified in the step and the preliminary transmission RF step, and when the active transmission frequency conversion unit or the active transmission high frequency unit fails, the active transmission frequency conversion unit and the active transmission high frequency unit A transmission output step of switching the active transmission high-frequency section to the standby transmission frequency conversion section and the standby transmission high-frequency section, and the outdoor device-side reception step includes distributing the received RF signal to the active reception high-frequency section and the standby reception high-frequency section. Distributing step; working reception for amplifying the signal distributed in the reception signal distributing step by a working reception high frequency unit An RF step; a preliminary reception RF step of amplifying the signal distributed in the reception signal distribution step by a preliminary reception high frequency section; and any of the signals amplified by the working reception frequency conversion section and the preliminary reception frequency conversion section. Selecting one of the signals and, when the working reception high-frequency section fails, a reception signal selection step of switching the working reception high-frequency section to the standby reception high-frequency section; and transmitting the signal selected in the reception signal selection step to the transmission cable. A reception-side transmission step of transmitting the signal transmitted in the reception-side transmission step to the demodulation unit side; and a reception-signal distribution step of distributing the signal transmitted in the reception-side transmission step to the demodulation unit side. A receiving-side demultiplexing step of demultiplexing the signal distributed in the distribution step; and an active reception of the signal demultiplexed in the receiving-side demultiplexing step. A receiving-side split signal distributing step for distributing to the wave number converting unit and the standby receiving frequency converting unit; and a working receiving frequency converting unit for converting the signal distributed in the receiving-side split signal distributing step to an IF signal in the working receiving frequency converting unit. A working demodulation step of demodulating the signal converted in the working reception frequency conversion step in a working demodulation section; and converting the signal distributed in the reception side split signal distribution step into an IF signal in a spare reception frequency conversion section. A preliminary receiving frequency converting step, a preliminary demodulating step of demodulating the signal converted in the preliminary receiving frequency converting step by a preliminary demodulating section, and any of the signals demodulated in the working demodulating step and the preliminary demodulating step. One of the signals is selected and output, and when the working reception frequency conversion unit or the working demodulation unit fails, the working reception frequency Wireless method is characterized in that a reception output selection step of switching the converter unit and the developing demodulation unit to standby receiving frequency converter and the preliminary demodulating unit. 6. The outdoor device-side receiving step includes: after the working reception RF step, a working reception frequency conversion step of converting a signal amplified by the working reception RF step into an IF signal by a working reception frequency conversion unit; The method further comprises: after the preliminary reception RF step, a preliminary reception frequency conversion step of converting the signal amplified by the preliminary reception RF step into an IF signal by a preliminary reception frequency conversion unit. And selecting one of the signals converted in the frequency conversion step and the preliminary reception frequency conversion step. The indoor device side reception step demodulates the signal transmitted in the reception side transmission step. Receiving signal distribution step of distributing to the unit side; Receiving side demultiplexing step of demultiplexing; a receiving side demultiplexing signal distributing step of distributing the signal demultiplexed in the receiving side demultiplexing step to a working demodulator and a backup demodulator; and the receiving side demultiplexing signal distributing step. A working demodulation step of demodulating the signal distributed by the working demodulation section in a working demodulation section; a preparatory demodulation step of demodulating the signal distributed in the receiving side demultiplexing signal distribution step by a preliminary demodulation section; Selecting and outputting any one of the signals demodulated in the steps (a) and (b), when the working demodulation section fails, a reception output selecting step of switching the working demodulation section to the backup demodulation section. The wireless method according to claim 5, wherein 7. The indoor-apparatus-side transmission step includes: after the working modulation step, a working transmission frequency conversion step of converting a signal modulated in the working modulation step; and after the preliminary modulation step, the protection modulation step. Further comprising: a preliminary transmission frequency conversion step of converting the signal modulated in the step (a), wherein the transmission signal selecting step is any one of the signals converted in the working transmission frequency conversion step and the preliminary transmission frequency conversion step When the working modulator or the working transmission frequency converter fails, the working modulator and the working transmission frequency converter are switched to a modulator and a spare transmission frequency converter. The device-side transmitting step includes transmitting the signal transmitted in the transmitting-side transmitting step to the transmitting high-frequency unit side. A signal distributing step; a transmitting side demultiplexing step for demultiplexing the signal distributed in the transmission signal distributing step; and distributing the signal demultiplexed in the transmitting side demultiplexing step to a working transmission high-frequency unit and a standby transmission high-frequency unit. A transmitting side split signal distributing step, an active transmitting RF step for amplifying a signal distributed in the transmitting side split signal distributing step in a current transmitting high frequency section, and a backup of the signal distributed in the demultiplexing signal distributing step. A preliminary transmission RF step for amplifying in the transmission high-frequency section, and selecting and outputting any one of the signals amplified in the current transmission RF step and the preliminary transmission RF step, and the current transmission high-frequency section has failed. 6. The wireless method according to claim 5, further comprising a transmission output step of switching the active transmission high-frequency unit to the standby transmission high-frequency unit. 8. A modulation section having a working modulation section for modulating an input signal and a spare modulation section which is a standby for the working modulation section, and a current transmission frequency conversion section for converting the frequency of the input signal to a carrier frequency band. A transmission frequency conversion unit having a standby transmission frequency conversion unit that is a backup of the current transmission frequency conversion unit; a current transmission high frequency unit that amplifies an input signal; and a backup transmission high frequency unit that is a backup of the current transmission high frequency unit. , A receiving high-frequency part having an active receiving high-frequency part for amplifying an input signal and a standby receiving high-frequency part for protection of the active receiving high-frequency part, and a current receiving frequency for converting the input signal to an IF signal A receiving frequency converting unit having a converting unit and a spare receiving frequency converting unit for standby of the working receiving frequency converting unit; a working demodulating unit for demodulating an input signal; And a standby device in a wireless device including an indoor device having the modulation unit and the demodulation unit, and an outdoor device having the transmission high-frequency unit and the reception high-frequency unit. The indoor apparatus side transmitting step includes: distributing the input baseband signal to a working modulator and a spare modulator; and distributing the baseband signal in the baseband signal distributing step. A working modulation step of modulating the resulting signal with a working modulation section, a pre-modulation step of modulating a signal distributed in the baseband signal distribution step with a spare modulation section, and modulating in the working modulation step and the preliminary modulation step. If any one of the selected signals is selected and the working modulator fails, the working modulator is switched to the spare modulator. A transmitting signal selecting step, and a transmitting side transmitting step of transmitting the signal selected in the transmitting signal selecting step to the outdoor device side via a transmission cable, wherein the outdoor device side transmitting step includes: A transmitting signal distributing step of distributing the transmitted signal to a transmitting high frequency unit side; a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step; A transmitting-side demultiplexing signal switching step of switching a signal to one of a working transmission frequency converting unit and a standby transmitting frequency converting unit, and a working-side transmitting frequency converting unit converting the signal switched in the transmitting-side demultiplexed signal switching step. A transmission conversion step, a working transmission RF step of amplifying a signal converted in the working transmission conversion step by a working transmission high frequency unit, A preliminary transmission conversion step of converting the signal switched in the receiving side demultiplexing signal switching step in the preliminary transmission frequency conversion section, and a preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step in the preliminary transmission high frequency section. Selecting and outputting any one of the signals amplified in the active transmission RF step and the standby transmission RF step, and, when the active transmission frequency conversion unit or the active transmission high frequency unit fails, the active transmission RF unit; A frequency conversion unit and a transmission output step of switching the current transmission high-frequency unit to a standby transmission frequency conversion unit and a standby transmission high-frequency unit. The outdoor device-side reception step includes: transmitting the received RF signal to the current reception high-frequency unit and the standby reception high-frequency unit. A receiving signal distributing step of distributing the signals to the active receiving high-frequency unit A working reception RF step of amplifying the signal distributed in the reception signal distributing step by a protection reception high frequency unit; and a amplification by the working reception frequency conversion unit and the protection reception frequency conversion unit. Selecting any one of the received signals, and when the working reception high-frequency unit fails, a reception signal selection step of switching the working reception high-frequency unit to the standby reception high-frequency unit; and a signal selected in the reception signal selection step. And a receiving-side transmitting step of transmitting the signal transmitted in the receiving-side transmitting step to the demodulation unit side. A receiving-side demultiplexing step of demultiplexing the signal distributed in the received signal distributing step; The receiving-side demultiplexed signal switching step of switching the signal thus switched to either the working reception frequency conversion unit or the standby reception frequency conversion unit, and the working reception frequency conversion unit converts the signal switched in the reception-side demultiplexed signal switching step. A working reception frequency conversion step of converting to an IF signal; a working demodulation step of demodulating the signal converted in the working reception frequency conversion step by a working demodulation unit; and a signal switched in the reception side split signal switching step. A preliminary receiving frequency converting step of converting the signal converted in the preliminary receiving frequency converting step into an IF signal in a receiving frequency converting section, a preliminary demodulating step of demodulating the signal converted in the preliminary receiving frequency converting step in a preliminary demodulating section, the working demodulating step and the preliminary demodulating step And selecting and outputting any one of the signals demodulated in the steps (1) and (2), and using the active reception frequency conversion unit or the active reception frequency conversion unit. If the gradation part fails, the wireless method is characterized in that a reception output selection step of switching the developing reception frequency conversion unit and the the developing demodulating unit to standby receiving frequency converter and the preliminary demodulating unit. 9. The outdoor reception-side receiving step includes: after the working reception RF step, a working reception frequency conversion step of converting a signal amplified by the working reception RF step into an IF signal by a working reception frequency conversion unit; The method further comprises: after the preliminary reception RF step, a preliminary reception frequency conversion step of converting the signal amplified by the preliminary reception RF step into an IF signal by a preliminary reception frequency conversion unit. And selecting one of the signals converted in the frequency conversion step and the preliminary reception frequency conversion step. The indoor device side reception step demodulates the signal transmitted in the reception side transmission step. Receiving signal distribution step of distributing to the unit side; A receiving-side demultiplexing step of demultiplexing, a receiving-side demultiplexed signal switching step of switching the signal demultiplexed in the receiving-side demultiplexing step to a working demodulator or a standby demodulator, and the receiving-side demultiplexed signal switching step. A working demodulation step of demodulating the switched signal in a working demodulation section; a preliminary demodulation step of demodulating a signal switched in the reception side demultiplexing signal switching step in a preliminary demodulation section; and the working demodulation step and the preliminary demodulation step. And selecting and outputting any one of the signals demodulated in the steps (a) and (b), when the working demodulation unit fails, a reception output selection step of switching the working demodulation unit to the backup demodulation unit. The wireless method according to claim 8, wherein 10. The indoor device-side transmitting step includes: after the working modulation step, a working transmission frequency conversion step of converting a signal modulated in the working modulation step; and after the preliminary modulation step, the preliminary modulation step. Further comprising: a preliminary transmission frequency conversion step of converting the signal modulated in the step (a), wherein the transmission signal selecting step is any one of the signals converted in the working transmission frequency conversion step and the preliminary transmission frequency conversion step When the working modulator or the working transmission frequency converter fails, the working modulator and the working transmission frequency converter are switched to a modulator and a spare transmission frequency converter. The device-side transmission step distributes the signal transmitted in the transmission-side transmission step to a transmission high-frequency unit side A transmitting signal dividing step, a transmitting-side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step, and a current transmitting high-frequency section or a preliminary transmitting high-frequency section of the signal demultiplexed in the transmitting side demultiplexing step. A transmitting-side demultiplexing signal switching step of switching to any of the following; a current transmission RF step of amplifying the signal switched in the transmission-side demultiplexing signal switching step in a current transmission high-frequency unit; A preliminary transmission RF step of amplifying the obtained signal in a preliminary transmission high-frequency unit; and selecting and outputting any one of the signals amplified in the current transmission RF step and the preliminary transmission RF step to perform current transmission. 9. A transmission output step for switching the working transmission high-frequency unit to the standby transmission high-frequency unit when the high-frequency unit fails. The described wireless method. 11. The transmission cable is an optical fiber cable, and in the indoor device side transmission step, the transmission side transmission step converts an electric signal selected in the transmission signal selection step into an optical signal and converts the optical signal into an optical signal. Transmitting to an outdoor device side via an optical fiber cable, in the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electric signal and distributes it to the transmission side outdoor device side In the outdoor device-side reception step, the reception-side transmission step converts the electric signal selected in the reception signal selection step into an optical signal, and transmits the optical signal to the indoor unit via the optical fiber cable; In the step, the receiving signal distributing step includes electrically converting the optical signal transmitted in the receiving side transmitting step. Wireless method according to any one of claims 5 to 10, characterized in that dispensing converted to the receiving indoor unit side to the issue. 12. An indoor apparatus on the transmitting side, an outdoor apparatus on the transmitting side, a transmission cable for connecting between the indoor apparatus on the transmitting side and the outdoor apparatus on the transmitting side, an outdoor apparatus on the receiving side, an indoor apparatus on the receiving side, and the outdoor apparatus on the receiving side. And a reception cable for connecting the reception-side indoor device to the reception-side indoor device, wherein the transmission-side indoor device includes: a baseband signal distribution unit that distributes an input baseband signal; and the baseband signal distribution unit. A modulation unit that modulates the signal distributed by the baseband signal distribution unit; a preliminary modulation unit that modulates the signal distributed by the baseband signal distribution unit; and any one of the signals modulated by the modulation unit and the preliminary modulation unit. If you select a signal and the modulator fails,
A transmission signal selection unit that switches the modulation unit to a preliminary modulation unit, the transmission-side outdoor device, a first connection unit that connects the signal selected by the transmission signal selection unit via the transmission cable, A transmission frequency conversion unit that converts the frequency of the signal connected by the first connection unit to a carrier frequency band, a transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit, and is connected by the first connection unit. A preliminary transmission conversion unit that converts the frequency of the received signal to a carrier frequency band, a preliminary transmission high-frequency unit that amplifies the signal converted by the preliminary transmission conversion unit, and is amplified by the transmission high-frequency unit and the preliminary transmission high-frequency unit. The transmission frequency conversion unit or the transmission high-frequency unit fails, and the transmission frequency conversion unit and the transmission high-frequency unit are switched to the standby transmission frequency conversion unit and the standby transmission high-frequency unit. A reception signal distribution unit that distributes a received RF signal; a reception high-frequency unit that amplifies the signal distributed by the reception signal distribution unit; and a reception high-frequency unit. A reception frequency conversion unit that converts the amplified signal to an IF signal; a preliminary reception high frequency unit that amplifies the signal distributed by the reception signal distribution unit; and a conversion of the signal amplified by the preliminary reception high frequency unit to an IF signal A standby reception frequency conversion unit, and a signal converted by the reception frequency conversion unit and the standby reception frequency conversion unit, and when the reception high-frequency unit or the reception frequency conversion unit fails, the reception high-frequency unit and the reception A reception signal selection unit that switches a frequency conversion unit to a standby reception high-frequency unit and a standby reception frequency conversion unit, wherein the reception-side indoor device includes a signal selected by the reception signal selection unit. A second connection unit for connecting a signal, a demodulation unit for demodulating a signal connected at the second connection unit, a preliminary demodulation unit for demodulating a signal connected at the second connection unit, the demodulation unit, A radio output device for selecting and outputting a signal demodulated by the standby demodulation unit and switching the demodulation unit to the standby demodulation unit when the demodulation unit fails. 13. An indoor device including a transmitter indoor device, a receiver indoor device, an indoor device including the transmitter indoor device and the receiver indoor device,
A transmitting-side outdoor device, a receiving-side outdoor device, an outdoor device including the transmitting-side outdoor device and the receiving-side outdoor device, a wireless device having a transmission cable that connects the indoor device and the outdoor device, The transmitting-side indoor device includes: a baseband signal distribution unit that distributes an input baseband signal; a modulation unit that modulates a signal distributed by the baseband signal distribution unit; and a distribution unit that is distributed by the baseband signal distribution unit. A preliminary modulation unit that modulates a signal, and selects any one of the signals modulated by the modulation unit and the preliminary modulation unit, and when the modulation unit fails,
A transmission signal selection unit that switches the modulation unit to a preliminary modulation unit; and a transmission-side transmission unit that transmits a signal selected by the transmission signal selection unit to the outdoor device via the transmission cable. A transmission signal distribution unit that distributes a signal transmitted from the transmission-side transmission unit to a transmission-side outdoor device side; a transmission-side demultiplexing unit that demultiplexes a signal distributed by the transmission signal distribution unit; A transmitting-side demultiplexing signal distribution unit that distributes the signal demultiplexed by the side demultiplexing unit; and an active transmission frequency conversion unit that converts the frequency of the signal distributed by the transmission-side demultiplexing signal distribution unit to a carrier frequency band. An active transmission high-frequency unit that amplifies the signal converted by the active transmission frequency conversion unit, and a preliminary transmission frequency conversion unit that converts the frequency of the signal distributed by the transmission-side demultiplexed signal distribution unit to a carrier frequency band. The preliminary transmission frequency A pre-transmission high-frequency unit that amplifies the signal converted by the conversion unit, and selects and outputs any one of the signals amplified by the working transmission high-frequency unit and the pre-transmission high-frequency unit, and performs a current transmission frequency conversion. When the unit or the active transmission high-frequency unit fails, the active transmission frequency conversion unit and a transmission output unit that switches the active transmission high-frequency unit to the standby transmission frequency conversion unit and the standby transmission high-frequency unit. A reception signal distribution unit that distributes a received RF signal; a working reception high frequency unit that amplifies the signal distributed by the reception signal distribution unit; and a preliminary reception high frequency unit that amplifies the signal distributed by the reception signal distribution unit. Selecting any one of the signals amplified in the working reception high-frequency unit and the standby reception RF, and when the working reception high-frequency unit fails, A reception signal selection unit that switches a high-frequency unit to a standby reception high-frequency unit; and a reception-side transmission unit that transmits a signal selected by the reception signal selection unit to the indoor device via the transmission cable. The indoor device, a reception signal distribution unit that distributes the signal transmitted from the reception-side transmission unit to the reception-side indoor device side, a reception-side demultiplexing unit that demultiplexes the signal distributed by the reception signal distribution unit, A receiving-side demultiplexing signal distribution unit that distributes the signal demultiplexed by the receiving-side demultiplexing unit; and an active reception frequency conversion unit that converts the signal distributed by the receiving-side demultiplexing signal distribution unit into an IF signal. A working demodulation unit that demodulates the signal converted by the working reception frequency conversion unit; a spare reception frequency conversion unit that converts a signal distributed by the reception-side split signal distribution unit to an IF signal; The signal converted by the A preparatory demodulation unit to be tuned, and selects and outputs any one of the signals demodulated by the demodulation unit and the preparatory demodulation unit, and when the working reception frequency conversion unit or the working demodulation unit fails, A wireless device comprising: a working reception frequency conversion unit; and a reception output selection unit that switches the working demodulation unit to a standby reception frequency conversion unit and a standby demodulation unit. 14. An indoor device including a transmitter indoor device, a receiver indoor device, an indoor device including the transmitter indoor device and the receiver indoor device,
A transmitting-side outdoor device, a receiving-side outdoor device, an outdoor device including the transmitting-side outdoor device and the receiving-side outdoor device, a wireless device having a transmission cable that connects the indoor device and the outdoor device, The transmitting-side indoor device includes: a baseband signal distribution unit that distributes an input baseband signal; a modulation unit that modulates a signal distributed by the baseband signal distribution unit; and a distribution unit that is distributed by the baseband signal distribution unit. A preliminary modulation unit that modulates a signal, and selects any one of the signals modulated by the modulation unit and the preliminary modulation unit, and when the modulation unit fails,
A transmission signal selection unit that switches the modulation unit to a preliminary modulation unit; and a transmission-side transmission unit that transmits a signal selected by the transmission signal selection unit to the outdoor device via the transmission cable. A transmission signal distribution unit that distributes a signal transmitted from the transmission-side transmission unit to a transmission-side outdoor device side; a transmission-side demultiplexing unit that demultiplexes a signal distributed by the transmission signal distribution unit; A transmitting-side demultiplexing signal switching unit that switches a signal demultiplexed by the side demultiplexing unit, and an active transmission frequency conversion unit that converts a frequency of the signal switched by the transmission-side demultiplexing signal switching unit to a carrier frequency band. A working transmission high-frequency unit that amplifies the signal converted by the working transmission frequency conversion unit; a spare transmission frequency conversion unit that converts the frequency of the signal switched by the transmission-side demultiplexing signal switching unit into a carrier frequency band; Forecast A preliminary transmission high-frequency unit for amplifying the signal converted by the transmission frequency conversion unit; and selecting and outputting any one of the signals amplified by the working transmission high-frequency unit and the preliminary transmission high-frequency unit, and transmitting the current transmission. When the frequency conversion unit or the active transmission high-frequency unit fails, the active transmission frequency conversion unit and a transmission output unit that switches the active transmission high-frequency unit to the standby transmission frequency conversion unit and the standby transmission high-frequency unit. The apparatus includes: a reception signal distribution unit that distributes a received RF signal; an active reception high frequency unit that amplifies the signal distributed by the reception signal distribution unit; and a preliminary reception that amplifies the signal distributed by the reception signal distribution unit. High-frequency unit, and selects any of the signals amplified in the working reception high-frequency unit and the standby reception RF, and when the working reception high-frequency unit fails, A reception signal selection unit that switches the working reception high-frequency unit to a standby reception high-frequency unit, and a reception-side transmission unit that transmits the signal selected by the reception signal selection unit to the indoor device via the transmission cable. The reception-side indoor device, a reception signal distribution unit that distributes a signal transmitted from the reception-side transmission unit to the reception-side indoor device, and a reception-side demultiplexer that demultiplexes the signal distributed by the reception signal distribution unit. , A receiving-side demultiplexed signal switching unit that switches the signal demultiplexed by the receiving-side demultiplexing unit, and an IF that switches the signal switched by the receiving-side demultiplexed signal switching unit.
A working reception frequency conversion unit that converts the signal into a signal; a working demodulation unit that demodulates the signal converted by the working reception frequency conversion unit; and a signal switched by the reception-side demultiplexed signal switching unit.
A preliminary reception frequency conversion unit that converts the signal into a signal, a preliminary demodulation unit that demodulates the signal converted by the preliminary reception frequency conversion unit, and one of the signals demodulated by the demodulation unit and the preliminary demodulation unit. A signal selecting and outputting a signal, and when the working reception frequency conversion section or the working demodulation section fails, a reception output selection section for switching the working reception frequency conversion section and the working demodulation section to a backup reception frequency conversion section and a backup demodulation section. A wireless device comprising: 15. The transmission-side indoor unit, wherein the transmission-side transmission unit converts an electric signal selected by the transmission-signal selection unit into an optical signal, and converts the optical signal into the optical fiber. Transmitting to an outdoor device side via a cable, in the transmission-side outdoor device, the transmission signal distribution unit converts the optical signal transmitted from the transmission-side transmission unit to an electric signal and distributes it to the transmission-side outdoor device side, In the reception-side outdoor device, the reception-side transmission unit converts the electric signal selected by the reception signal selection unit into an optical signal and transmits the optical signal to an indoor device via the optical fiber cable. 15. The reception signal distribution unit according to claim 12, wherein the optical signal transmitted from the reception-side transmission unit is converted into an electric signal and distributed to the reception-side indoor unit. Wireless device according to any misalignment. 16. A modulation section for modulating an input signal, a transmission frequency conversion section for converting the frequency of the input signal into a carrier frequency band, a transmission high frequency section for amplifying the input signal, and a reception high frequency section for amplifying the input signal. , A reception frequency conversion unit that converts an input signal into an IF signal, and a demodulation unit that demodulates the input signal, the modulation unit and an indoor device having the demodulation unit, and the transmission high-frequency unit and the reception high-frequency unit. A wireless method in a wireless device including an outdoor device, wherein the indoor device-side transmission step includes: a modulation step of modulating an input baseband signal by a modulation unit; and a signal modulated by the modulation step via a transmission cable. A transmitting-side transmitting step of transmitting the signal transmitted in the transmitting-side transmitting step to the outdoor device side. A transmitting signal distributing step of distributing the signals distributed in the transmitting signal distributing step, a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step, and a transmission frequency converting unit of the signal demultiplexed in the transmitting side demultiplexing step. A transmission conversion step of converting the signal converted in the transmission conversion step, a transmission RF step of amplifying the signal converted in the transmission conversion step by a transmission high-frequency unit, and a transmission output step of outputting the signal amplified in the transmission RF step. The receiving step includes the following steps:
F step; and a receiving side transmitting step of transmitting the signal amplified in the receiving RF step to the indoor unit side via the transmission cable. The indoor unit side receiving step is transmitted in the receiving side transmitting step. A receiving signal distributing step of distributing the received signal to the demodulation unit side, a receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distributing step, and receiving the signal demultiplexed in the receiving side demultiplexing step. A receiving frequency converting step of converting the signal converted in the receiving frequency converting step into an IF signal in a frequency converting section; a demodulating step of demodulating the signal converted in the receiving frequency converting step in a demodulating section; and a receiving output step of outputting the signal demodulated in the demodulating step. A wireless method comprising: 17. The outdoor device-side receiving step further includes, after the reception RF step, a reception frequency conversion step of converting a signal amplified by the reception RF step into an IF signal by a reception frequency conversion unit; The device-side receiving step is a receiving-signal distributing step of distributing the signal transmitted in the receiving-side transmitting step to the demodulation unit side; 17. A demodulation step of demodulating a signal demultiplexed in the receiving side demultiplexing step by a demodulation unit, and a reception output step of outputting a signal demodulated in the demodulation step.
The described wireless method. 18. The indoor device-side transmission step further includes, after the modulation step, a transmission frequency conversion step of converting a signal modulated in the modulation step, the outdoor device-side transmission step includes: A transmitting signal distributing step of distributing the signal transmitted in the step to the transmitting high frequency unit side; a transmitting side demultiplexing step of demultiplexing the signal distributed in the transmitting signal distributing step; and a demultiplexing in the transmitting side demultiplexing step. 17. The wireless method according to claim 16, comprising: a transmission RF step of amplifying the obtained signal by a transmission high-frequency unit; and a transmission output step of outputting the signal amplified in the transmission RF step. 19. The transmission cable is an optical fiber cable, and in the indoor device side transmission step, the transmission side transmission step converts an electric signal selected in the transmission signal selection step into an optical signal and converts the optical signal into an optical signal. Transmitting to an outdoor device side via an optical fiber cable, in the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electric signal and distributes it to the transmission side outdoor device side In the outdoor device-side reception step, the reception-side transmission step converts the electric signal selected in the reception signal selection step into an optical signal, and transmits the optical signal to the indoor unit via the optical fiber cable; In the receiving step, the receiving signal distributing step electrically converts the optical signal transmitted in the receiving side transmitting step. Wireless method according to any one of claims 16 to 18, characterized in that dispensing converted to the receiving indoor unit side to the issue. 20. An indoor apparatus including a transmitter indoor apparatus, a receiver indoor apparatus, an indoor apparatus including the transmitter indoor apparatus and the receiver indoor apparatus,
A transmitting-side outdoor device, a receiving-side outdoor device, an outdoor device including the transmitting-side outdoor device and the receiving-side outdoor device, a wireless device having a transmission cable that connects the indoor device and the outdoor device, The transmission-side indoor device includes: a modulation unit that modulates an input baseband signal; and a transmission-side transmission unit that transmits a signal modulated by the modulation unit to the outdoor device via the transmission cable. The side outdoor device, a transmission signal distribution unit that distributes the signal transmitted from the transmission side transmission unit to the transmission side outdoor device side, and a transmission side demultiplexing unit that demultiplexes the signal distributed by the transmission signal distribution unit. A transmission frequency conversion unit that converts the frequency of the signal demultiplexed by the transmission-side demultiplexing unit to a carrier frequency band; a transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit; and the transmission high-frequency unit Amplify at A transmission output unit that outputs a received signal, the reception-side outdoor device includes a reception high-frequency unit that amplifies a received RF signal, and an indoor device that receives the signal amplified by the reception high-frequency unit via the transmission cable. A reception-side transmission unit that transmits the signal transmitted from the reception-side transmission unit to the reception-side indoor unit, and a reception-signal distribution unit that distributes the signal transmitted from the reception-side transmission unit to the reception-side indoor device. A reception-side demultiplexing unit that demultiplexes the divided signal; a reception-frequency conversion unit that converts a signal demultiplexed by the reception-side demultiplexing unit into an IF signal; and a signal that is converted by the reception-frequency conversion unit. A wireless device comprising: a demodulation unit for demodulating; and a reception output unit for outputting a signal demodulated by the demodulation unit. 21. The transmission cable, wherein the transmission cable is an optical fiber cable, and in the transmission-side indoor device, the transmission-side transmission unit converts an electric signal selected by the transmission signal selection unit into an optical signal, and converts the optical signal into the optical fiber. Transmitting to an outdoor device side via a cable, in the transmission-side outdoor device, the transmission signal distribution unit converts the optical signal transmitted from the transmission-side transmission unit to an electric signal and distributes it to the transmission-side outdoor device side, In the reception-side outdoor device, the reception-side transmission unit converts the electric signal selected by the reception signal selection unit into an optical signal and transmits the optical signal to an indoor device via the optical fiber cable. 21. The wireless device according to claim 20, wherein the reception signal distribution unit converts the optical signal transmitted from the reception-side transmission unit into an electric signal and distributes the electric signal to the reception-side indoor device. .