Wireless communication system, control method for wireless communication system, and wireless master station device

Abstract

This wireless communication system accommodates multiple different services. The wireless communication system is provided with a wireless parent station device and a wireless child station device. The wireless parent station device and the wireless child station device perform wireless communication that uses adaptive modulation technology over multiple ports. Each of the multiple ports has a priority that is set depending on the type of services that the port accommodates. If the wireless band decreases due to deterioration of the wireless environment, the wireless communication system closes ports in order from lowest priority ports, and unblocks ports in order from highest priority ports when the wireless band recovers due to improvement in the wireless environment.

Description

[Technical field]

[0001] The present invention relates to a wireless communication system, a control method for a wireless communication system, and a wireless master station device. [Background technology]

[0002] For example, a communication system for performing wireless communication is disclosed in Patent Document 1. As a communication system for performing wireless communication, there is a conventional wireless communication system that employs an adaptive modulation technique that changes a modulation method depending on the quality of a wireless section. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-208188 A Summary of the Invention [Problem to be solved by the invention]

[0004] In wireless communication systems that use adaptive modulation technology, the number of available lines decreases as the modulation method is changed due to quality degradation in the wireless section. In conventional wireless communication systems that use adaptive modulation technology, as the number of available lines decreases, certain ports become unusable regardless of the type of service. For example, dedicated lines with SLA (Service Level Agreement) and public telephones, which are universal services, are lines of high importance, but in the past there was an issue that such high-importance lines could not be used.

[0005] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a wireless communication system, a control method for the wireless communication system, and a wireless master station device that can guarantee the communication quality of a line of high importance. [Means for solving the problem]

[0006] A wireless communication system according to an aspect of the present invention is a wireless communication system accommodating a plurality of different services. The wireless communication system includes a wireless master station device and a wireless slave station device. The wireless master station device and the wireless slave station device perform wireless communication using adaptive modulation technology via a plurality of ports. A priority is set for each of the plurality of ports according to the type of service accommodated by the port. The wireless communication system is configured to block ports in order of lower priority when the wireless bandwidth is reduced due to deterioration of the wireless environment, and to unblock ports in order of higher priority when the wireless bandwidth is restored due to improvement of the wireless environment.

[0007] A control method for a wireless communication system according to an aspect of the present invention is a control method for a wireless communication system that includes a wireless master station device and a wireless slave station device that perform wireless communication using an adaptive modulation technique via a plurality of ports and accommodates a plurality of services. The control method for a wireless communication system includes a step of setting a priority for each of the plurality of ports according to a type of service accommodated by the port, a step of blocking the ports in order of lower priority when the wireless bandwidth is reduced due to deterioration of the wireless environment, and a step of unblocking the ports in order of higher priority when the wireless bandwidth is recovered due to improvement of the wireless environment.

[0008] A wireless master station device according to an aspect of the present invention is a wireless master station device constituting a wireless communication system that accommodates a plurality of different services by performing wireless communication using adaptive modulation technology with wireless slave station devices via a plurality of ports. The wireless master station device includes a wireless unit that performs wireless communication with the wireless slave station devices, a control unit that controls a modulation method of communication by the wireless unit in response to a change in the wireless environment, and an interface unit that blocks and unblocks the plurality of ports. A priority is set for each of the plurality of ports in response to the type of service that the port accommodates. The control unit controls the interface unit to block ports in order of lower priority when the wireless bandwidth is reduced due to deterioration of the wireless environment, and to unblock ports in order of higher priority when the wireless bandwidth is restored due to improvement of the wireless environment. Effect of the Invention

[0009] According to the present invention, it is possible to ensure the communication quality of lines of high importance. [Brief description of the drawings]

[0010] [Figure 1] 2 is an image diagram illustrating the operation of the wireless communication system according to the first embodiment. FIG. [Diagram 2] 1 is a functional block diagram showing main functions of a wireless communication system according to a first embodiment. [Diagram 3] 4 is a diagram showing an operation flow of each functional unit of the wireless communication system according to the first embodiment. [Figure 4] FIG. 2 is a diagram illustrating an example of a hardware configuration for implementing each function of the wireless communication system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments will be described with reference to the accompanying drawings. In this disclosure, overlapping descriptions will be appropriately simplified or omitted. Note that this disclosure is not limited to the following embodiments. This disclosure may include various modifications and combinations of the configurations disclosed in the following embodiments without departing from the spirit of the disclosure.

[0012] Embodiment 1 Fig. 1 is an image diagram for explaining the operation of the wireless communication system according to the embodiment 1. Fig. 2 is a functional block diagram showing main functions of the wireless communication system according to the embodiment 1. Fig. 3 is a diagram showing the operation flow of each functional unit of the wireless communication system according to the embodiment 1.

[0013] The wireless communication system according to the present embodiment is a wireless communication system that accommodates a plurality of different services, for example, a combination of fixed line, leased line, and IP line services.

[0014] The wireless communication system according to the present embodiment includes a wireless master station device 10 and a wireless slave station device 20. The wireless master station device 10 and the wireless slave station device 20 perform wireless communication using an adaptive modulation technique via a plurality of ports. Note that the wireless communication system according to the present disclosure is not limited to a fixed wireless communication system that performs one-to-one communication, and may be, for example, a fixed / mobile wireless communication system that performs one-to-multiple communication (a system in which a plurality of slave stations are connected to one master station).

[0015] In this embodiment, a priority is set for each of the multiple ports according to the type of service that the port accommodates. For example, the priority is set in the order of public telephone, leased line, and fixed line.

[0016] As shown in Fig. 1, the wireless communication system according to the present embodiment is configured to block ports in order of lower priority when the wireless bandwidth is reduced due to deterioration of the wireless environment, and to unblock ports in order of higher priority when the wireless bandwidth is restored due to improvement of the wireless environment. With the wireless communication system configured in this way, it is possible to guarantee the communication quality of lines with high importance. Each function of the wireless communication system can also be realized as a control method for the wireless communication system.

[0017] As an example, the wireless master station device 10 includes a control unit 11, a wireless unit 12, and an interface unit 13. As an example, the wireless slave station device 20 includes a control unit 21, a wireless unit 22, and an interface unit 23.

[0018] The control unit 11 functions as a control means for controlling the operation of the wireless master station device 10 and the wireless slave station device 20. The control unit 21 functions as a control means for controlling the operation of the wireless slave station device 20. The control unit 21 controls the operation of the wireless slave station device 20 based on a control instruction from the control unit 11. In this embodiment, the wireless slave station device 20 operates based on a control instruction from the wireless master station device.

[0019] The radio unit 12 and the radio unit 22 are for performing wireless communication technology. Wireless communication is performed via the radio unit 12 and the radio unit 22.

[0020] When the environment for wireless communication by radio unit 12 and radio unit 22 changes, the modulation method of communication by each radio unit is controlled in response to the change. The modulation method of radio unit 12 is controlled by control unit 11. The modulation method of radio unit 22 is controlled by the control unit. Control units 11 and 21 perform control in response to the detection result of deterioration or recovery of communication quality. Each radio unit changes the modulation method based on a control instruction from each control unit. For example, information on deterioration or recovery of quality is sent from radio unit 12 to control unit 11.

[0021] The control unit 11 acquires information from a database having service type information and priority information for each port. Based on the acquired information, the control unit 11 compares each port and performs port control based on the priority of each port. The control unit 11 transmits control instructions for each port to the interface unit 13 and the control unit 21. The control unit 21 transmits control instructions for each port to the interface unit 23.

[0022] The interface unit 13 and the interface unit 23 are functional units that block and unblock a plurality of ports. The interface unit 13 blocks and unblocks each port according to the priority based on a control instruction from the control unit 11. The interface unit 23 blocks and unblocks each port according to the priority based on a control instruction from the control unit 21.

[0023] Each function of the wireless communication system according to the above-mentioned embodiment may be realized in part or in whole by using hardware such as an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array). Each function of the wireless communication system may be realized by a combination of dedicated hardware and software. Furthermore, each function of the wireless communication system may be configured in part or in whole as a program executed by a processor such as a CPU. This program may be recorded in a computer-readable storage medium.

[0024] For example, each function of the wireless communication system can be realized using a computer and a program, and the program can be recorded on a storage medium or provided via a network.

[0025] Fig. 4 is a diagram showing an example of a hardware configuration for realizing each function of the wireless communication system. As shown in Fig. 4, each function of the wireless communication system is realized by, for example, an input unit 100, an output unit 110, a communication unit 120, a CPU 130, a memory 140, and a HDD 150. The input unit 100, the output unit 110, the communication unit 120, the CPU 130, the memory 140, and the HDD 150 are connected via a bus 160 and have a function as a computer. In addition, the computer configured by the input unit 100, the output unit 110, the communication unit 120, the CPU 130, the memory 140, and the HDD 150 can input and output data to and from a computer-readable storage medium 170.

[0026] The input unit 100 is, for example, a keyboard and a mouse, etc. The output unit 110 is, for example, a display device such as a display, etc. The communication unit 120 is, for example, a wireless network interface.

[0027] The CPU 130 controls each unit constituting the wireless communication system and performs predetermined processing, etc. The memory 140 and the HDD 150 function as storage units that store various types of data and the like.

[0028] The storage medium 170 stores a program for executing each function of the wireless communication system. Note that the architecture constituting the wireless communication system is not limited to the example shown in FIG.

[0029] In addition, the term "computer" here includes hardware such as the OS and peripheral devices. "Computer-readable storage medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs.

[0030] Furthermore, the "computer-readable storage medium" may be a medium that dynamically holds a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. Also, the "computer-readable storage medium" may be a medium that holds a program for a certain period of time, such as a volatile memory inside a computer that is a server or a client. [Industrial Applicability]

[0031] The wireless communication system, the control method for the wireless communication system, and the wireless base station device according to the present invention can be applied to, for example, a mobile base station that provides wireless communication. [Explanation of symbols]

[0032] 10 Wireless master station device 11 Control section 12 Radio section 13 Interface section 20 Wireless slave station device 21 Control section 22 Radio Section 23 Interface section 100 Input section 110 Output section 120 Communications Department 130 CPU 140 Memory 150 HDD 160 Bus 170 Storage medium

Claims

1. In a wireless communication system accommodating a plurality of different services, A wireless master station device; A wireless slave station device, Equipped with the wireless master station device and the wireless slave station device perform wireless communication using an adaptive modulation technique via a plurality of ports; a priority level is set for each of the plurality of ports according to the type of service that the port accommodates; A wireless communication system characterized in that, when the wireless bandwidth is reduced due to deterioration of the wireless environment, the ports with the lowest priority are blocked in order, and when the wireless bandwidth is restored due to improvement of the wireless environment, the ports with the highest priority are unblocked in order.

2. A method for controlling a wireless communication system that accommodates a plurality of services and that is configured of a wireless master station device and a wireless slave station device that perform wireless communication using an adaptive modulation technique via a plurality of ports, comprising: setting a priority for each of the plurality of ports according to a type of service accommodated by the port; blocking the ports in order of priority from the lowest when the wireless bandwidth is reduced due to deterioration of the wireless environment; when the wireless bandwidth is recovered due to an improvement in the wireless environment, releasing the blockage of the ports in order of priority; A method for controlling a wireless communication system comprising:

3. A wireless master station device constituting a wireless communication system accommodating a plurality of different services by performing wireless communication using adaptive modulation technology with a wireless slave station device via a plurality of ports, a wireless unit that performs wireless communication with the wireless slave station device; a control unit that controls a modulation method for communication by the radio unit in response to a change in a radio environment; an interface unit that blocks and unlocks the plurality of ports; Equipped with a priority level is set for each of the plurality of ports according to the type of service that the port accommodates; The control unit controls the interface unit so that when the wireless bandwidth is reduced due to deterioration of the wireless environment, the ports with the lowest priority are blocked, and when the wireless bandwidth is restored due to improvement of the wireless environment, the ports with the highest priority are unblocked.

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