JP6003249B2 - Microwave communication apparatus, microwave communication control method, and program - Google Patents

Description

  The present invention relates to a microwave communication device, a microwave communication control method, and a program, and more particularly, to a microwave communication device having an AMR (Adaptive Modulation Radio) function, a microwave communication control method, and a program.

  Microwave communication systems are attracting attention as a means for complementing optical communication lines and wireless trunk lines. Microwave communication systems are used in a wide range of applications such as cell phone networks, inter-building communications, and optical communications networks as alternatives and backups. The microwave communication system has characteristics such as economy of devices constituting the system, ease of system construction (construction), flexibility to change the system configuration, and large capacity. Due to these characteristics, the microwave communication system is widely used as a communication system connecting base stations in the mobile phone network market which is rapidly expanding worldwide.

  With the expansion of usage scenes, there is an increasing demand for higher speed and wider bandwidth for microwave communication systems. That is, it is required that the microwave communication system is configured at a lower cost and that the microwave communication system provides a high-quality line service. Technology for optimizing communication data is indispensable when configuring a system at low cost.

JP 2012-004876 A JP 2010-288277 A JP 2011-244276 A JP 2010-154082 A

  As mobile networks become more complex, there is a need to reduce CAPEX (Capital Expenditure) / OPEX (Operating Expense) for operators who control the system. With the development of mobile communication devices typified by mobile phones, user data transmitted / received on a network has been increased in capacity. Therefore, effective use of communication bandwidth has become important.

  An SV (Supervisory) communication band in a general microwave communication system is determined by setting by an operator. Therefore, it is not possible to sufficiently reduce the operator's CAPEX (Capital Expenditure) / OPEX (Operating Expense). In addition, since the operator cannot always make an appropriate setting, there has been a problem that it is difficult to effectively use the communication band.

  The present invention has been made in view of the above problems, and mainly provides a microwave communication device, a microwave communication control method, and a program capable of effectively utilizing a communication band in a microwave communication system. Objective.

One aspect of the microwave communication device according to the present invention is:
A microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device, and transmitting and receiving a main signal as user data and an SV (supervisory) signal used for various managements,
A control unit configured to set a communication band for SV communication based on a user set value relating to a communication band for SV signal communication and a radio band determined by the AMR function;
It is what has.

One aspect of the microwave communication control method according to the present invention is:
A method of controlling a microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device and transmitting / receiving a main signal as user data and an SV (supervisory) signal used for various managements,
A communication band for SV communication of the microwave communication apparatus is set based on a user set value relating to a communication band for SV (supervisory) signal communication and a radio band determined by the AMR function.

One aspect of the program according to the present invention is as follows:
On the computer,
Executing an AMR (Adaptive Modulation Radio) function for controlling a radio band with the opposite device;
Setting a communication band for SV communication of the microwave communication device based on a user set value relating to a communication band for SV (supervisory) signal communication and a radio band determined by the AMR function;
Is to execute.

  ADVANTAGE OF THE INVENTION According to this invention, the microwave communication apparatus, the microwave communication control method, and program which can aim at the effective utilization of the communication band in a microwave communication system can be provided.

1 is a diagram showing a configuration of a microwave communication system according to a first exemplary embodiment. 1 is a diagram showing a configuration of a mobile communication system according to a first exemplary embodiment. 2 is a block diagram showing an internal configuration of an NE (Network Element) 100 according to the first embodiment. FIG. FIG. 6 is a diagram illustrating an example of operation for setting the transmission capacity of the NE 100 according to the first embodiment; It is a conceptual diagram which shows the relationship between a radio link condition and transmission capacity. FIG. 3 is a logical configuration diagram of a CTRL 150 (control unit) according to the first exemplary embodiment. FIG. 3 is a conceptual diagram showing a logical configuration (Inband communication) of a management VLAN according to the first embodiment; FIG. 3 is a conceptual diagram showing a logical configuration (Outband communication) of a management VLAN according to the first embodiment; FIG. 3 is a conceptual diagram illustrating a logical configuration (inband / outband communication mixed environment) of a management VLAN according to the first exemplary embodiment; 3 is a flowchart showing an operation of the microwave communication system according to the first exemplary embodiment; 1 is a diagram illustrating a hardware configuration example of a microwave communication system according to a first exemplary embodiment;

<Embodiment 1>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a microwave communication system according to the present embodiment. The microwave communication system includes a plurality of NEs (also referred to as network elements, microwave communication devices) 100 and an NMS (Network Management System) 200.

  The NE 100 includes an IDU (Indoor Unit) 110, an ODU (Outdoor Unit) 120, a separation synthesizer (HYB) (not shown), and an antenna. The ODU 120 performs wireless transmission / reception, and the IDU 110 performs signal processing, and realizes transmission with other NEs 100. Here, the ODU 120 transmits and receives a main signal and an SV (Supervisory) signal in communication with the opposite device.

  The main signal is so-called user data, which is data used for information transmission with the opposite device. On the other hand, the SV signal is information used by the NMS 200 for network management and data used for management of the NE 100. That is, the SV signal is data for managing various devices. The main signal and the SV signal may be transmitted on the same route (Inband communication) or transmitted on a different route (Outband communication). Details will be described later with reference to FIG.

  The NMS 200 and the NE 100 are connected via a network device 310 on the network 300. The NMS 200 monitors and controls each NE 100 connected to the network 300.

  FIG. 2 is a diagram showing a configuration of a mobile communication system including the microwave communication system shown in FIG. The mobile communication system includes BTS (Base Transceiver Station), NodeB, eNodeB, BSC (Base Station Controller), RNC (Radio Network Controller), and the like. With the recent expansion of IP networks, the backbone networks (for example, microwave communication systems) in mobile communication systems are becoming IP. A microwave communication system is used as a system that interpolates between an optical communication line, a wireless trunk line, and the like. The microwave communication system has a transmission path access / aggregation function and the like. Note that the microwave communication system indicated by arrows in FIG. 2 substantially corresponds to the microwave communication system shown in FIG.

  Next, the configuration and operation of the NE 100 will be described with reference to FIGS. The NE 100 is a communication device in a microwave communication system having an AMR (Adaptive Modulation Radio) function.

  AMR is a function for automatically switching the transmission modulation method in accordance with the state of the radio line. By using the AMR function, the transmission modulation scheme can be made highly reliable when the radio channel status is bad, and the transmission modulation scheme with a large communication band can be used when the radio channel status is good. In the modulation scheme control using the AMR function, the modulation scheme determined on the reception side is fed back to the transmission side, and the modulation scheme is sequentially changed from the transmission side in units of radio frames. Thereby, it is possible to realize a modulation method switching method that is hitless (without instantaneous interruption).

  FIG. 3 is a block diagram showing an internal configuration of the NE 100. As shown in FIG. The NE 100 includes the IDU 110 and the ODU 120 as described above. The IDU 110 includes a DPU (Digital Processor Unit) 130, a MOD (Modulator) 140, a CTRL (control unit) 150, a DEM (Demodulator) 160, and an INTFC (Interface Unit) 170.

  When the NE 100 operates as a receiving-side device, the DPU 130 analyzes the radio channel status and determines the modulation method to be used next (FIG. 3 (1)). At this time, the DPU 130 calculates a modulation scheme using information such as CNR (Carrier to Noise Ratio), RSL (Received Signal Level), and syndrome error. When using the above three types of information, the DPU 130 uses CNR as a main determination condition, and RSL and syndrome errors are used as auxiliary information. Thereby, improvement of determination accuracy can be aimed at.

  When the NE 100 operates as a receiving device, the INTFC 170 multiplexes the modulation scheme information analyzed by the DPU 130 into a frame to be transmitted to the transmitting device ((2) in FIG. 3). The frame is transmitted to the NE 100 on the transmission side via the DPU 130, the MOD 140, and the ODU 120. The MOD 140 performs signal conversion processing necessary for frame transmission. Further, the DPU 130 notifies the CTRL 150 of modulation scheme information to be used next. The CTRL 150 notified of the modulation scheme information sets the modulation scheme of the ODU 120 via the MOD 140.

  When the NE 100 operates as a transmission side device, the DPU 130 extracts modulation scheme information from a frame in which the modulation scheme information is multiplexed. The DPU 130 notifies the CTRL 150 of the extracted modulation scheme information ((3) in FIG. 3).

  The CTRL 150 notified of the modulation scheme information sets the modulation scheme of the ODU 120 via the MOD 140 (FIG. 3 (4)). That is, the control path of the ODU 120 is (CTRL150 → MOD140 → ODU120).

  The CTRL 150 generates an ACK to be transmitted to the receiving side NE 100. The INTFC 170 of the transmitting device refers to the ACK information and performs various settings related to wired transmission accompanying the change of the modulation scheme.

  FIG. 4 is a diagram illustrating a transmission band setting operation example by the AMR function of the NE 100. The NE 100 dynamically changes the modulation scheme in accordance with the radio line status. As shown in FIG. 4, the communication band (Mbps) is determined according to the modulation method and CS (Channel Separation). For example, when the modulation scheme is QPSK and CS is Mode 2 (14 MHz), the communication band is set to 26 Mbps.

  FIG. 5 is a conceptual diagram showing the relationship between the wireless line status and the transmission band. For example, in the case of fading environment due to rain, that is, when the radio channel condition is bad, the communication band is reduced using a highly reliable modulation method (for example, QPSK). When the weather recovers, the communication band is increased by changing to the initial modulation method (256QAM).

  Next, the logical configuration and operation of the CTRL 150 according to the present embodiment will be described with reference to FIG. FIG. 6 is a logical configuration diagram of the CTRL 150. The CTRL 150 includes a management module 151. The CTRL 150 controls the port 153, the port 154, and the modem 155 to configure a management VLAN (Virtual Local Area Network) 152.

The management module 151 holds various types of information for controlling the NE 100, and controls communication using the information. Information managed by the management module 151 is listed below.
-Management VLAN 152 control information-Wireless transmission scheme based on AMR control-SV signal communication band upper limit value based on user settings-SV signal communication band setting information-CoS (Class of Service) information based on user settings-User Inband / Outband communication control information based on settings

  The control information of the management VLAN 152 is information indicating how to configure a virtual network using the physical ports of the port 153, the port 154, and the modem 155. Here, the port 153 is a main signal port. The port 154 is an SV signal port. That is, the port 153 multiplexes and transmits the main signal and the SV signal when performing inband communication. The port 154 transmits an SV signal when performing Outband communication.

  The wireless transmission scheme based on AMR control is information including the modulation scheme (ex.QPSK, 128QAM, etc.) notified from the DPU 130 and the wireless transmission band (ex.110 Mbps) calculated from the correspondence information shown in FIG. is there.

  The upper limit value of the SV signal transmission capacity indicates the upper limit value of the bandwidth used as the transmission band of the SV signal among the radio transmission bands used by the ODU 120. The upper limit is set in advance by the user. The upper limit value is information relating to a ratio (percentage) with respect to the wireless transmission band, for example. For example, when “30%” is set as the upper limit value, it is set that the maximum 30% of the wireless transmission band currently used for communication can be used as the transmission band of the SV signal.

  Note that the upper limit value of the SV signal transmission band does not necessarily have to be expressed as a ratio to the radio transmission band. For example, the upper limit value of the SV signal transmission band can be set as “X Mbps up to 100 Mbps and Y Mbps up to 200 Mbps”. However, by indicating the upper limit value of the SV signal transmission band as a percentage, it is ensured that a band is secured for transmission of the main signal by a certain ratio.

  The setting of the communication band of the SV signal is information on the communication band used for transmission / reception of the SV signal. The communication band of the SV signal is set by the management module 151 according to the radio transmission band calculated from the correspondence information shown in FIG. 4 and the upper limit value of the SV signal transmission band.

  The management module 151 compares the current SV signal transmission band with the wireless transmission band calculated from the correspondence information shown in FIG. The management module 151 changes the setting of the SV signal transmission band when the transmission band of the SV signal exceeds the bandwidth calculated from the set upper limit value of the SV signal transmission band.

  CoS (Class of Service) information is information that determines which of the main signal and the SV signal is preferentially transmitted / received when the above-described upper limit value is not set. When the upper limit value of the SV signal transmission band is not set, the CTRL 150 appropriately adjusts the communication band of the main signal and the communication band of the SV signal according to the CoS (Class of Service) information.

  The control information of Inband / Outband communication is information that determines in what format (a mixture of Inband / Outband / Inband and Outband) is transmitted as the main signal and the SV signal. This information is set by the user.

  FIG. 7 is a diagram illustrating a configuration example of the management VLAN 152 when performing Inband communication. When performing inband communication, the port 153 and the modem 155 are accommodated on the same VLAN. The NE 100 implements Inband communication by using a transmission / reception path for the main signal and the SV signal on the port 153. Note that the port 154 is not used in this case.

  FIG. 8 is a diagram illustrating a configuration example of the management VLAN 152 when performing Outband communication. When performing Outband communication, the port 153 and the modem 155 are accommodated in the VLAN 1, and the port 154 and the modem 155 are accommodated in the VLAN 2. That is, the port 153 and the port 154 are accommodated in different VLANs. Port 153 transmits the main signal, and port 154 transmits the SV signal. As a result, the main signal and the SV signal can be separated and transmitted.

  FIG. 9 is a diagram illustrating a configuration example of a VLAN when Inband communication and Outband communication coexist. As illustrated, a port 153, a port 154, and a modem 155 are accommodated on the VLAN 1. The port 153 is a transmission / reception path for the main signal and the SV signal. The port transmits only SV signals. Thereby, it is possible to construct an environment in which Inband communication and Outband communication are mixed.

  Next, the flow of setting the communication band of the SV signal will be described with reference to FIG. FIG. 10 is a flowchart showing a flow of setting the communication band of the SV signal.

  First, each NE 100 performs AMR control with the opposing NE 100 to determine a modulation scheme and a radio transmission band. Here, each NE 100 determines a radio transmission band using information indicating the relationship between the modulation scheme and mode information shown in FIG.

  The management module 151 acquires the upper limit value of the radio transmission band and the SV signal transmission band set by the user (A1, A2). Note that the upper limit value of the SV signal transmission band is, for example, a ratio (percentage) to the radio transmission band as described above.

  The management module 151 calculates a band value that should not exceed the SV signal transmission band by multiplying the upper limit value (percentage) of the radio transmission band and the SV signal transmission band (A3). Then, the management module 151 compares the communication band value calculated in A3 with the current SV signal transmission band. The management module 151 determines whether it is necessary to change the SV signal transmission band based on this comparison (A4).

  When the change is necessary (A4: Yes), the management module 151 changes the SV signal transmission band according to the upper limit value of the SV signal transmission band set by the user (A5). More specifically, the management module 151 changes the communication settings related to the transmission band of the SV signal in consideration of the VLAN configuration shown in FIGS. After that, the NE 100 transmits the SV signal (A6). When the change is not necessary (A4: No), the NE 100 transmits the SV signal without performing the change process (A6).

  When changing the transmission band of the SV signal, the management module 151 may set a value smaller than a value obtained by multiplying the current wireless transmission band and the above-described upper limit value as the communication band value of the SV signal. Thereby, the communication band of the main signal is sufficiently secured, and problems such as data loss can be avoided.

  Further, the management module 151 may change the setting so that the communication band of the SV signal is increased when the current communication band of the SV signal is less than a certain ratio of the communication band calculated in FIG. 10A3 described above. For example, when the current communication band of the SV signal is less than half of the communication band calculated in FIG. 10A3 described above, the management module 151 changes the setting so that the communication band of the SV signal is increased. Thereby, a sufficient communication band for the SV signal can be secured.

  The management module may manage the lower limit (percentage) of the SV signal transmission band. Then, the management module 151 calculates a band value that should not be lower than the SV signal transmission band by multiplying the lower limit value (percentage) of the radio transmission band and the SV signal transmission band. Then, the management module 151 compares the calculated communication band value with the current transmission band of the SV signal. The management module 151 determines whether it is necessary to change the SV signal transmission band based on this comparison. When the calculated communication band value is larger, the management module 151 changes the setting so that the communication band of the SV signal is increased.

  Then, the effect of NE100 (microwave communication apparatus) concerning this Embodiment is demonstrated. As described above, the user can secure the optimum SV signal communication band by setting the upper limit value of the SV signal communication band. Furthermore, since the upper limit value of the communication band of the SV signal is set, the communication band of the main signal can be secured.

  In the NE 100 having AMR control, the radio communication band can change frequently according to environmental changes such as weather. The NE 100 according to the present embodiment can immediately set the optimum main signal and SV signal communication bands in accordance with changes in the radio communication band.

  The management unit 150 configures a virtual VLAN via a plurality of physical ports and modems. When the VLAN is configured to perform Inband communication as described above, the NE 100 can transmit the main signal and the SV signal mixedly from the same port. In addition, when the VLAN is configured to perform Outband communication, the main signal and the SV signal can be explicitly transmitted from different physical ports.

  Although the present invention has been described with reference to the above embodiment, the present invention is not limited to the configuration of the above embodiment, and can be made by those skilled in the art within the scope of the invention of the claims of the claims of the present application. It goes without saying that various modifications, corrections, and combinations are included.

  A part or all of each process in the above-described CTRL (management unit) 150 may be realized as a program that operates in an arbitrary computer. The program may be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W and semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (random access memory)) are included. The program may also be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

  FIG. 11 shows a hardware configuration example of the NE 100 in the case where a part or all of each process in the management unit 150 is realized as a program. The hardware includes a central processing unit (CPU) 400 and a memory 410. The CPU 400 and the memory 410 are connected to a hard disk device (HDD) 420 as an auxiliary storage device via a bus. A storage medium such as the hard disk device 420 can store a computer program for giving instructions to the CPU 400 or the like in cooperation with the operating system and executing each process of the CTRL (control unit) 150 described above.

  A part or all of the above embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
A microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device, and transmitting and receiving a main signal as user data and an SV (supervisory) signal used for various managements,
A control unit configured to set a communication band for SV communication based on a user set value relating to a communication band for SV signal communication and a radio band determined by the AMR function;
A microwave communication device.

(Appendix 2)
The user setting value for the communication band of the SV signal communication is a ratio indicating the upper limit value of the SV signal with respect to the radio band,
The control unit changes the setting so that the communication band of the SV communication becomes smaller when the communication band of the current SV signal is larger than the communication band calculated from the upper limit value of the SV signal with respect to the radio band;
The microwave communication device according to appendix 1, wherein

(Appendix 3)
The user set value for the communication band of the SV signal communication is a ratio indicating a lower limit value of the SV signal with respect to the radio band,
The control unit changes the setting so that the communication band of the SV communication becomes larger when the communication band of the current SV signal is smaller than the communication band calculated from the lower limit value of the SV signal with respect to the radio band;
The microwave communication device according to appendix 1, wherein

(Appendix 4)
The control unit calculates a communication band value by multiplying the radio band and a ratio indicating the upper limit value, and when the communication band of the current SV signal is smaller than a certain ratio of the calculated communication band value. , Change the setting so that the communication band of SV communication becomes larger,
The microwave communication device according to attachment 2, wherein the microwave communication device is provided.

(Appendix 5)
The control unit configures a VLAN (Virtual Local Area Network) by controlling a logical configuration of a physical port on the microwave communication device according to a user setting.
The microwave communication device according to any one of Supplementary Note 1 to Supplementary Note 3, wherein

(Appendix 6)
A method of controlling a microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device and transmitting / receiving a main signal as user data and an SV (supervisory) signal used for various managements,
A microwave communication control method for setting a communication band for SV communication of the microwave communication apparatus based on a user set value relating to a communication band for SV (supervisory) signal communication and a radio band determined by the AMR function.

(Appendix 7)
The user setting value for the communication band of the SV signal communication is a ratio indicating the upper limit value of the SV signal with respect to the radio band,
When the communication band of the current SV signal is larger than the communication band calculated from the upper limit value of the SV signal for the wireless band, the setting is changed so that the communication band of the SV communication becomes smaller.
The microwave communication control method according to appendix 6, wherein:

(Appendix 8)
The user set value for the communication band of the SV signal communication is a ratio indicating a lower limit value of the SV signal with respect to the radio band,
When the communication band of the current SV signal is smaller than the communication band calculated from the lower limit value of the SV signal for the radio band, the setting is changed so that the communication band of the SV communication becomes larger.
The microwave communication control method according to appendix 6, wherein:

(Appendix 9)
On the computer,
Executing an AMR (Adaptive Modulation Radio) function for controlling a radio band with the opposite device;
Setting a communication band for SV communication of the microwave communication device based on a user set value relating to a communication band for SV (supervisory) signal communication and a radio band determined by the AMR function;
A program for running

(Appendix 10)
The user setting value for the communication band of the SV signal communication is a ratio indicating the upper limit value of the SV signal with respect to the radio band,
When the communication band of the current SV signal is larger than the communication band calculated from the upper limit value of the SV signal for the wireless band, the setting is changed so that the communication band of the SV communication becomes smaller.
The program according to appendix 9, characterized by:

(Appendix 11)
The user set value for the communication band of the SV signal communication is a ratio indicating a lower limit value of the SV signal with respect to the radio band,
When the communication band of the current SV signal is smaller than the communication band calculated from the lower limit value of the SV signal for the radio band, the setting is changed so that the communication band of the SV communication becomes larger.
The program according to appendix 9, characterized by:

100 NE (Network Element)
110 IDU (Indoor Unit)
120 ODU (Outdoor Unit)
130 DPU (Digital Processor Unit)
140 MOD (Modulator)
150 CTRL (control unit)
151 Control module 152 Management VLAN
153 Port 154 Port 155 Modem 160 DEM (Demodulator)
170 INTFC (Interface Unit)
200 NMS (Network Management System)
300 Network 310 Network Device 400 CPU (Central Processing Unit)
410 Memory 420 HDD

Claims (7)

A microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device, and transmitting and receiving a main signal as user data and an SV (supervisory) signal used for various managements,
And user setting value of the communication band of the SV signal communication, a radio band definite by the AMR function, and a control unit for setting the communication bandwidth of the SV communication based on,
I have a,
The user setting value for the communication band of the SV signal communication is a ratio indicating the upper limit value of the SV signal with respect to the radio band,
The control unit changes the setting so that the communication band of the SV communication becomes smaller when the communication band of the current SV signal is larger than the communication band calculated from the upper limit value of the SV signal with respect to the radio band;
Microwave communication device.   A microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device, and transmitting and receiving a main signal as user data and an SV (supervisory) signal used for various managements,
  A control unit configured to set a communication band for SV communication based on a user set value relating to a communication band for SV signal communication and a radio band determined by the AMR function;
  Have
  The user set value for the communication band of the SV signal communication is a ratio indicating a lower limit value of the SV signal with respect to the radio band,
  The control unit changes the setting so that the communication band of the SV communication becomes larger when the communication band of the current SV signal is smaller than the communication band calculated from the lower limit value of the SV signal with respect to the radio band;
  Microwave communication device. The control unit calculates a communication band value by multiplying the radio band and a ratio indicating the upper limit value, and when the communication band of the current SV signal is smaller than a certain ratio of the calculated communication band value. , Change the setting so that the communication band of SV communication becomes larger,
The microwave communication device according to claim 1 . The control unit controls a logical configuration of a physical port on the microwave communication device according to a user setting to configure a VLAN (Virtual Local Area Network) ,
At least one of the main signal and the SV signal is transmitted using the physical port.
The microwave communication device according to claim 1 , wherein the microwave communication device is a microwave communication device. A method of controlling a microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device and transmitting / receiving a main signal as user data and an SV (supervisory) signal used for various managements,
Based on the user setting value for the communication band of SV (supervisory) signal communication and the radio band determined by the AMR function, the communication band of SV communication of the microwave communication device is set ,
The user setting value for the communication band of the SV signal communication is a ratio indicating the upper limit value of the SV signal with respect to the radio band,
When the communication band of the current SV signal is larger than the communication band calculated from the upper limit value of the SV signal for the wireless band, the setting is changed so that the communication band of the SV communication becomes smaller.
Microwave communication control method.   A method of controlling a microwave communication device having an AMR (Adaptive Modulation Radio) function for controlling a radio band with an opposite device and transmitting / receiving a main signal as user data and an SV (supervisory) signal used for various managements,
  Based on the user setting value for the communication band of SV (supervisory) signal communication and the radio band determined by the AMR function, the communication band of SV communication of the microwave communication device is set,
  The user set value for the communication band of the SV signal communication is a ratio indicating a lower limit value of the SV signal with respect to the radio band,
  When the communication band of the current SV signal is smaller than the communication band calculated from the lower limit value of the SV signal for the radio band, the setting is changed so that the communication band of the SV communication becomes larger.
  Microwave communication control method. On the computer,
Executing an AMR (Adaptive Modulation Radio) function for controlling a radio band with the opposite device;
And user setting value of the communication band of the SV (supervisory) signals communication is a percentage indicating the upper limit value of SV (supervisory) signal to the radio band, the radio band that definite by the AMR function of S V communications based on In a second step of setting a communication band, when the communication band of the current SV signal is larger than the communication band calculated from the upper limit value of the SV signal for the radio band, the communication band of the SV communication is reduced. The second step of changing the setting to
A program for running