WO2022254695A1 - 無線基地局装置、無線通信システム、及び無線通信方法 - Google Patents
無線基地局装置、無線通信システム、及び無線通信方法 Download PDFInfo
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- WO2022254695A1 WO2022254695A1 PCT/JP2021/021383 JP2021021383W WO2022254695A1 WO 2022254695 A1 WO2022254695 A1 WO 2022254695A1 JP 2021021383 W JP2021021383 W JP 2021021383W WO 2022254695 A1 WO2022254695 A1 WO 2022254695A1
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- wireless lan
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- slave device
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- 238000000034 method Methods 0.000 title claims abstract description 134
- 238000004891 communication Methods 0.000 title claims abstract description 114
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- 238000012545 processing Methods 0.000 claims description 219
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- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present disclosure relates to a radio base station device, a radio communication system in which a radio base station device and a control device are connected via a communication network, and a radio communication method.
- a wireless communication system consists of one control device (control device), multiple wireless base station devices (radio transmitting/receiving devices), and a communication network.
- a control device is connected to a plurality of radio base station devices via a communication network.
- a plurality of wireless terminals are wirelessly connected to the wireless base station apparatus.
- a method in which a plurality of wireless terminals are connected to one wireless base station device is generally called a multiple access method, a medium access control method, or the like, and the following methods have been proposed.
- ⁇ Demand assignment method (method for allocating resources based on terminal resource requests)
- ⁇ Pure ALOHA method ⁇ Slot ALOHA method
- CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
- the demand assignment method is a method in which a wireless terminal issues a resource allocation request for the main signal when it wants to communicate, and the resource management device that receives the request allocates resources to the wireless terminal and performs communication.
- a resource management device is called a control station or a base station.
- the pure ALOHA method is a communication protocol based on wireless communication or satellite communication, and is a method in which wireless terminals transmit data at any timing when they want to communicate. Each wireless terminal transmits data at any desired timing regardless of whether wireless terminals other than itself are transmitting data. For this reason, it is inevitable that a part of the transmitted signal overlaps with data transmitted from another wireless terminal and communication cannot be performed correctly, that is, a so-called collision occurs. As the number of wireless terminals increases, the probability of collision increases, and as a result, the chances of correct data transmission decrease as a whole. It is generally known that the throughput of the pure ALOHA method is about 18% at maximum. Therefore, the pure ALOHA method is said to be suitable for applications in which one wireless terminal has few chances to transmit, or even if it does, it transmits small-capacity data.
- the slot ALOHA method is an improvement of the pure ALOHA method described above. While the pure ALOHA method permits transmission at arbitrary timing, the slotted ALOHA method provides time slots at regular intervals to control transmission timing. It is known that the throughput of the slotted ALOHA scheme is doubled to 36% compared to the pure ALOHA scheme.
- the CSMA/CA system is a layer 2 multiple access system for wireless LANs.
- a wireless terminal attempts to receive data once before transmitting data to check whether other wireless terminals are transmitting data. Then, if the other wireless terminal is not transmitting data, it transmits its own data. On the other hand, if another wireless terminal is transmitting data, the transmission waits until the data transmission is completed. After confirming the end of transmission, data transmission is performed after waiting for a random time.
- the polling method is a method in which the wireless base station device becomes a so-called "order collector" and checks whether there is data to be transmitted by selecting wireless terminals one by one. This method is suitable for applications such as confirming the normality of a wireless terminal (health check) and collecting data at regular intervals.
- the polling operation for wireless terminals that do not require data transmission is a waste of work.
- the demand assignment method and the polling method are methods in which the wireless base station equipment that accommodates wireless terminals manages resources centrally. However, in the demand assignment method, a sequence of resource allocation requests runs prior to data transmission, so the timing of data transmission is slightly delayed, which wastes resources for that amount of time. In the polling method, the radio base station apparatus "listens" regardless of whether or not the radio terminal transmits data, and reserves resources in preparation for transmission data. Polling a wireless terminal that has no data to send wastes resources.
- the above wireless communication systems include wireless LAN systems such as public wireless LAN systems and corporate wireless LAN systems, and systems that connect mobile phone base stations and terminals in 4G and 5G mobile phone services. Furthermore, there is also a satellite IoT system that equips a high altitude platform station (HAPS) or a low earth orbit satellite (LEO: low earth orbit) with base station functions and collects monitoring information from a large number of sensor terminals. Included in a wireless communication system.
- HAPS high altitude platform station
- LEO low earth orbit satellite
- a public wireless LAN system which is one form of a wireless communication system, will be described below.
- a public wireless LAN system consists of one wireless LAN controller, multiple wireless LAN access points, and an IP network.
- the wireless LAN controller corresponds to the control device in the aforementioned wireless communication system
- the wireless LAN access point corresponds to the wireless base station device in the wireless communication system.
- a wireless LAN controller is connected to a plurality of wireless LAN access points via an IP network.
- the wireless LAN controller has a function of monitoring and controlling multiple wireless LAN access points.
- the first type is a system that does not require user authentication processing based on user operations when using public wireless LAN services, among systems that provide public wireless LAN services in railway station premises and platforms. This is hereinafter referred to as the "railway type".
- the railway type is a SIM authentication method in public wireless LAN services provided by mobile phone carriers. Since user authentication is completed based on the SIM information of the mobile phone, the user can automatically connect to the Internet simply by moving to the vicinity of the wireless LAN access point. (See Non-Patent Document 1).
- the second type is a system that provides public wireless LAN service at hotspots. This is hereinafter referred to as "hot spot type". Unlike the railway type, the hotspot type requires user authentication processing based on user operations such as Web authentication when using public wireless LAN services (see Non-Patent Document 2).
- the third type is a system that provides public wireless LAN services at hamburger shops, convenience stores, etc. This is hereinafter referred to as the "convenience store type".
- the convenience store type in addition to the screen for user authentication for connecting to the Internet, there is also a customer service screen that provides incentives unique to the store such as discount coupons (see Non-Patent Document 3).
- the SSID of the connected wireless LAN access point is stored in the wireless LAN slave device that has been connected to the public wireless LAN service even once.
- the wireless LAN slave device starts connecting to the wireless LAN access point regardless of whether or not the wireless LAN slave device has transmission data.
- the process proceeds to the point where the IP address is issued from the wireless LAN access point.
- the processing progresses to the state where the Internet connection can be used.
- the hotspot type and the convenience store type the IP address assignment process to the wireless LAN slave device is completed, and in the convenience store type, the Web browser is automatically opened and the process proceeds to the display of the service screen.
- the above processing is performed when the wireless LAN slave device approaches the vicinity of the wireless LAN access point. It will be executed accordingly.
- the wireless LAN slave device Taking the convenience store type as an example, if the convenience store faces a busy road, the radio waves of the wireless LAN reach the wireless LAN slave device of a person who just passed nearby. An IP address is issued even if An IP address is also issued to a wireless LAN slave device of a user who enters a convenience store but does not actively use the public wireless LAN service.
- IP addresses are automatically assigned to wireless LAN slave devices of users who do not actively use public wireless LAN services, and IP address resources are wasted. It is A particular problem arises when the DHCP server of the wireless LAN access point limits the number of IP addresses that can be assigned to the wireless LAN slaves. In this case, IP addresses may run out, and it may become impossible to assign IP addresses to wireless LAN slave devices of users who want to actively use the public wireless LAN service.
- wireless LAN access point In a wireless communication system such as a public wireless LAN system, the number of wireless terminals accommodated by one wireless base station device (wireless LAN access point) is enormous. However, since the communication resources allocated to one wireless base station device are limited, the allocation of communication resources to wireless terminals (wireless LAN slave units) that do not need to communicate is suppressed as much as possible. We want to make effective use of certain communication resources.
- the present disclosure has been made with a focus on the above circumstances, and aims to provide technology that enables effective use of limited communication resources.
- the present disclosure provides a radio base station device to achieve the above objectives.
- the radio base station apparatus of the present disclosure is configured to execute the following processes.
- the radio base station apparatus of the present disclosure determines positive availability of the radio communication service by the radio terminal based on past connection record information of the radio terminal in response to reception of radio waves from the radio terminal. .
- the second processing is processing when the wireless terminal is a terminal that cannot be expected to actively use the wireless communication service.
- the radio base station apparatus of the present disclosure allocates communication resources to the radio terminal on condition that the radio terminal performs a predetermined connection operation.
- the third processing is processing when the wireless terminal is a terminal that can be expected to actively use the wireless communication service.
- the radio base station apparatus of the present disclosure allocates communication resources to the radio terminal without conditional on the predetermined connection operation.
- a radio communication system is a radio communication system in which a radio base station device and a control device that manages the radio base station device are connected via a communication network.
- the wireless communication system of the present disclosure is configured to perform the following processes.
- the wireless communication system of the present disclosure in response to the radio base station receiving the radio wave from the wireless terminal, detects past connections of the wireless terminal accumulated in the wireless base station or the control device. Based on the performance information, the active use of the wireless communication service by the wireless terminal is determined.
- the second processing is processing when the wireless terminal is a terminal that cannot be expected to actively use the wireless communication service.
- the radio communication system of the present disclosure allocates communication resources from the radio base station apparatus to the radio terminal on condition that the radio terminal performs a predetermined connection operation.
- the third processing is processing when the wireless terminal is a terminal that can be expected to actively use the wireless communication service.
- the radio communication system of the present disclosure allocates communication resources from the radio base station apparatus to the radio terminal without conditional on the predetermined connection operation.
- a wireless communication method of the present disclosure is a wireless communication method by a wireless base station apparatus.
- the wireless communication method of the present disclosure includes the following steps.
- the first step is a step of judging the active use of the wireless communication service by the wireless terminal based on the past connection record information of the wireless terminal in response to the reception of radio waves from the wireless terminal.
- the second step is a step of allocating communication resources to a wireless terminal on the condition that the wireless terminal performs a predetermined connection operation when the wireless terminal is not expected to actively use the wireless communication service.
- the third step is a step of allocating communication resources to the wireless terminal without conditional on the predetermined connection operation if the wireless terminal is expected to actively use the wireless communication service.
- radio base station apparatus According to the radio base station apparatus, radio communication system, and radio communication method according to the present disclosure, it is possible to effectively utilize limited communication resources.
- FIG. 1 is a diagram showing a configuration of a public wireless LAN system common to each embodiment of the present disclosure
- FIG. 1 is a block diagram showing the configuration of a convenience store-type wireless LAN access point according to the first embodiment of the present disclosure
- FIG. 3 is a table showing an example of a processing log by the wireless LAN access point shown in FIG. 2
- 3 is a table showing an example of connection record information by the wireless LAN access point shown in FIG. 2
- FIG. 10 is a diagram for explaining the relationship between a processing log and connection record information
- 3 is a diagram illustrating an example of conversion from a processing log by the wireless LAN access point shown in FIG. 2 to connection record information
- FIG. 1 is a diagram showing a configuration of a public wireless LAN system common to each embodiment of the present disclosure
- FIG. 1 is a block diagram showing the configuration of a convenience store-type wireless LAN access point according to the first embodiment of the present disclosure
- FIG. 3 is a table showing an example of a processing log by the
- 4 is a flowchart showing state transition of a wireless LAN slave device in the public wireless LAN system according to the first embodiment of the present disclosure; 4 is a flowchart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the first embodiment of the present disclosure (distribution flow according to active use of terminals); 4 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the first embodiment of the present disclosure (flow when the terminal is expected to be actively used). 4 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the first embodiment of the present disclosure (flow when the terminal is not expected to be actively used); FIG.
- FIG. 7 is a block diagram showing the configuration of a hotspot-type wireless LAN access point according to the second embodiment of the present disclosure
- 12 is a table showing an example of a processing log by the wireless LAN access point shown in FIG. 11
- FIG. 12 is a diagram illustrating an example of conversion from a processing log by the wireless LAN access point shown in FIG. 11 to connection record information
- FIG. 11 is a flow chart showing state transition of a wireless LAN slave device in a public wireless LAN system according to a second embodiment of the present disclosure
- FIG. FIG. 11 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the second embodiment of the present disclosure (distribution flow according to active use of terminals);
- FIG. 11 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the second embodiment of the present disclosure (flow when the terminal is expected to be actively used);
- FIG. 11 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the second embodiment of the present disclosure (flow when the terminal is not expected to be actively used);
- FIG. 12 is a block diagram showing the configuration of a railway-type wireless LAN access point according to the third embodiment of the present disclosure; 19 is a table showing an example of a processing log by the wireless LAN access point shown in FIG. 18; 19 is a diagram illustrating an example of conversion from a processing log by the wireless LAN access point shown in FIG.
- FIG. 11 is a flow chart showing state transition of a wireless LAN slave device in a public wireless LAN system according to a third embodiment of the present disclosure
- FIG. 11 is a flowchart showing a connection flow of a wireless LAN slave device to a wireless LAN access point (distribution flow according to active use of terminals) according to the third embodiment of the present disclosure
- FIG. FIG. 11 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the third embodiment of the present disclosure (flow when the terminal is expected to be actively used);
- FIG. 12 is a flow chart showing a connection flow of a wireless LAN slave device to a wireless LAN access point according to the third embodiment of the present disclosure (flow when the terminal is not expected to be actively used);
- FIG. 2 is a diagram illustrating an example of a hardware configuration of a wireless LAN access point common to each embodiment of the present disclosure;
- the public wireless LAN system 2 includes one wireless LAN controller 4, a plurality of (n) wireless LAN access points 10, and an IP network 6. Provides services (wireless communication services).
- the wireless LAN access point 10 is a wireless base station device accommodating a large number of wireless LAN slave devices 8, which are wireless terminals.
- the IP network 6 is a communication network that connects the wireless LAN controller 4 and multiple wireless LAN access points 10 .
- the wireless LAN controller 4 has a function as a control device that monitors and controls a plurality of wireless LAN access points 10 .
- the wireless LAN access point 10 is a convenience store type wireless LAN access point.
- a wireless LAN access point 10 according to the second embodiment is a hotspot wireless LAN access point.
- the wireless LAN access point 10 according to the third embodiment is a railway-type wireless LAN access point.
- the convenience store type is referred to as the wireless LAN access point 10A
- the hotspot type is referred to as the wireless LAN access point 10B
- the railway type. is written as a wireless LAN access point 10C.
- FIG. 2 is a block diagram showing the configuration of a convenience store-type wireless LAN access point 10A according to the first embodiment.
- the wireless LAN access point 10A includes an IP network interface 11, a wireless LAN connection processing section 12A, a wireless LAN communication section 13, a connection record information accumulation section 100, and a connection control section .
- the IP network interface 11 is an interface for transmitting/receiving monitoring control signals and transmitting/receiving main signal traffic of the wireless LAN slave device 8 between the wireless LAN access point 10A and the wireless LAN controller 4 .
- the wireless LAN communication unit 13 is a device for the wireless LAN access point 10A to transmit and receive wireless LAN radio waves.
- the wireless LAN communication unit 13 has an antenna (not shown) and performs wireless communication with a plurality of wireless LAN extension units 8 .
- the wireless LAN connection processing unit 12A performs processing when the wireless LAN slave device 8 connects to the wireless LAN access point 10A.
- the wireless LAN connection processing unit 12A includes a wireless LAN link connection processing unit 14, an IP address issue processing unit 15, a screen display processing unit 16A, a customer service usage screen display unit 17, a user authentication processing unit 18, and a traffic monitoring unit 19. .
- the wireless LAN link connection processing unit 14 attempts to establish a wireless LAN link with the wireless LAN slave device 8 after receiving radio waves emitted by the wireless LAN slave device 8 . In response to the establishment of the wireless LAN link with the wireless LAN slave device 8 , the wireless LAN link connection processing unit 14 passes the processing to the IP address issue processing unit 15 .
- the IP address assignment processing unit 15 assigns an IP address to the wireless LAN slave device 8 with which the wireless LAN link has been established.
- the IP address is a communication resource possessed by the wireless LAN access point 10A.
- a predetermined number of IP addresses are assigned in advance to the wireless LAN access point 10A.
- the IP address assignment processing unit 15 assigns one of the IP addresses assigned to the wireless LAN access point 10A to the wireless LAN slave device 8 based on the DHCP protocol.
- the IP address issue processor 15 transfers the process to the next screen display processor 16A.
- the screen display processing unit 16A displays on the Web browser installed in the wireless LAN slave device 8 a screen for customer service and a user authentication screen required when connecting to the Internet using a public wireless LAN service. In response to the user's operation for using the customer service, the screen display processing unit 16A transfers the process to the customer service use screen display unit 17. FIG. Further, in response to the user's operation for user authentication, the screen display processing unit 16A passes the processing to the user authentication processing unit 18 .
- the customer service use screen display unit 17 displays a screen for the user to use the customer service provided at the store where the wireless LAN access point 10A is installed.
- Customer service may include, for example, store-specific incentives such as discount coupons.
- the user can receive a predetermined customer service such as a discount service by showing the customer service use screen displayed on the wireless LAN slave device 8 to the clerk.
- the user authentication processing unit 18 performs authentication processing for connecting to the Internet using a public wireless LAN service.
- the wireless LAN slave device 8 becomes ready for Internet connection.
- the traffic monitoring unit 19 monitors how much actual user traffic flows after the wireless LAN slave device 8 can be connected to the Internet. Specifically, the amount of main signal traffic for each wireless LAN slave device 8 is monitored.
- the wireless LAN access point 10A determines whether or not the wireless LAN slave device 8 actively uses the public wireless LAN service, and controls connection processing to the wireless LAN slave device 8 based on the determination result.
- the mechanisms are the connection record information accumulation unit 100 and the connection control unit 102 .
- connection record information accumulation unit 100 accumulates "connection record information" obtained by processing the "processing log” of the wireless LAN access point 10A when the wireless LAN slave device 8 connects to the wireless LAN access point 10A.
- the contents of the "processing log” and “connection record information” will be described in detail later.
- Information accumulated in the connection record information accumulation unit 100 is aggregated in the wireless LAN controller 4 .
- the connection control unit 102 refers to the information in the connection record information accumulation unit 100 and determines whether or not the user of the wireless LAN slave device 8 connected to the wireless LAN access point 10A is a user actively using the public wireless LAN. . Also, by referring to the information aggregated in the wireless LAN controller 4, the connection control unit 102 checks the connection record status of the wireless LAN slave device 8 that has connected to the wireless LAN access point 10A for the first time to other wireless LAN access points. can know. The connection control unit 102 controls the processing performed by the wireless LAN connection processing unit 12A based on the determination result of such positive usability determination.
- connection control unit 102 controls the wireless LAN link connection processing unit 14 and the IP address issue processing unit 15, which are connected by dashed lines in FIG.
- the connection control unit 102 causes the wireless LAN link connection processing unit 14 not to establish a wireless LAN link unless the radio wave arrival power from the wireless LAN slave device 8 reaches a certain level.
- the connection control unit 102 causes the IP address issue processing unit 15 not to issue an IP address even if the wireless LAN link is established, or sets a different IP address for each MAC address of the wireless LAN slave device 8. Set payout times.
- connection record information 2-2-1 Details of connection record information 2-2-1. Description of Processing Log As shown in the table of FIG. is a log of what kind of processing was performed on the wireless LAN slave device 8. FIG. Specifically, the "processing log" includes the following information. ⁇ Processing log ID ⁇ Wireless LAN slave device MAC address ⁇ Processing date ⁇ Processing time ⁇ Arrival power ⁇ Processing details ⁇ Internet traffic volume
- Processing log ID is the ID of a log recorded when the wireless LAN access point 10A performs some processing on the wireless LAN slave device 8.
- the log ID is a unique ID in the wireless LAN access point 10A.
- the processing log may be a serial number, or may be a character string combining date+time+wireless LAN slave unit MAC address.
- Wireless LAN slave unit MAC address is the MAC address of the wireless LAN slave unit 8 for which the wireless LAN access point 10A has performed some processing.
- Processing date is the date when the wireless LAN access point 10A performed some processing
- processing time is the time when the wireless LAN access point 10A performed some processing. The specific content of the processing is described in "Processing content”.
- “Achieved power” is the reached power of the wireless LAN slave device 8 when the wireless LAN access point 10A performs some processing.
- the specific content of the processing is described in "Processing content”.
- “Processing content” indicates the state transition based on the processing in the wireless LAN connection processing unit 12A of the wireless LAN access point 10A.
- the "processing content” is any of the following. ⁇ Start wireless LAN link connection processing ⁇ End wireless LAN link connection processing ⁇ Start IP address allocation processing ⁇ End IP address allocation processing ⁇ Start service screen/user authentication screen display processing ⁇ End service screen/user authentication screen display processing ⁇ Use customer service Screen display start/Customer service use screen display end/Customer service use status/User authentication process start/User authentication process end/Internet connection use status/IP address return process start/IP address return process completed
- Internet traffic volume is the traffic volume actually communicated after the wireless LAN slave device 8 enters the "Internet connection use state". It is possible to distinguish from the traffic amount whether the wireless LAN slave unit 8 in the ⁇ internet connection use state'' actively used the Internet or simply automatically entered the ⁇ internet connection use state''. .
- connection record information is a table in which the following information is extracted from the above-mentioned “processing log” and summarized in one row for each connection record. More specifically, as shown in FIG. 5, the following information is extracted from the "processing log” of all the wireless LAN slave devices 8 connected to the wireless LAN access point 10, and arranged in chronological order to obtain the wireless LAN access log. It is point 10 "connection record information”.
- connection history ID ⁇ Wireless LAN slave device MAC address
- Processing date ⁇ Day of the week
- Processing start time ⁇ Maximum reachable power
- Connection record ID is a unique ID for the connection record information. For example, when the same wireless LAN slave device 8 connects to the same wireless LAN access point 10A at different times on the same day, different “connection record IDs" are assigned.
- Wireless LAN slave unit MAC address is the MAC address of the wireless LAN slave unit 8 connected to the wireless LAN access point 10A.
- Processing date is the date when the wireless LAN access point 10A detects an incoming radio wave to the wireless LAN slave device 8 having the above “wireless LAN slave device MAC address” and starts processing for the wireless LAN slave device 8. be.
- Day of the week is information obtained from the above processing date.
- the "day of the week” is used as a material for improving the accuracy of positive availability determination in consideration of trends due to differences in days of the week in positive availability determination of the wireless LAN slave device 8.
- Maximum reaching power is the maximum value of “reaching power” from the wireless LAN slave device 8 at the wireless LAN access point 10A described in the processing log.
- Maximum reachable power is a threshold value of the reachable power level in order to preliminarily eliminate processing for the wireless LAN slave device 8 that does not reach a certain level of reachable power when performing connection processing to the wireless LAN slave device 8. used to calculate
- “Positive usability determination result when wireless LAN slave device is connected” takes the value of either “positive usability” or "positive usability not available”.
- the active availability determination is based on the past "connection record information" accumulated in the wireless LAN access point 10A and the "connection record information" of the other wireless LAN access points 10A accumulated in the wireless LAN controller 4. done.
- the wireless LAN access point 10A unconditionally performs wireless LAN link connection processing and assigns an IP address to the wireless LAN slave device 8 determined to be “actively usable”.
- the wireless LAN access point 10A performs a process of not issuing an IP address as much as possible to the wireless LAN slave device 8 determined to be "no active use”. A determination method for positive availability determination will be described later.
- “Actual usage result” takes the value of either "actually used” or “not actually used”.
- “Actually used” means that the wireless LAN slave device 8 that has received the assigned IP address performs some kind of communication such as Internet communication.
- the IP address issued from the wireless LAN access point 10A may be used not for Internet use but for customer service such as obtaining coupons for in-store use. However, even in such a case, since the assigned IP address is not wasted, it is determined that it is "actually used”. If the Internet is used, an amount of Internet traffic is generated, and this information can be detected by the wireless LAN access point 10A, so it can be used as a basis for determining whether or not the Internet is actually used.
- the convenience store type and hot spot type, which will be described later
- the user himself/herself needs some terminal operation when using the Internet.
- FIG. 6 is a diagram specifically showing an example of conversion from a processing log to connection record information.
- the wireless LAN slave device 8 having the MAC address "yy:yy:yy:yy:yy:yy:yyy” connects to the wireless LAN access point 10A on Friday, February 1, 2021, and at 8:00 am.
- the processing log shows that the processing started at 1 minute and 2 seconds.
- the maximum reaching power at the time of terminal connection, which is recorded in the processing log, is -70 dBm.
- the connection record information accumulated in the wireless LAN access point 10A and the wireless LAN controller 4 includes the Internet or customer service information from the wireless LAN slave device 8 whose IP address has been issued. Contains actual usage results. Whether the wireless LAN slave device 8 is using the Internet or customer service is determined from the "state" of the wireless LAN slave device.
- the "state" of the wireless LAN slave device 8 is defined as follows. ⁇ "Link not established” status ⁇ "Link established" status ⁇ "IP address assigned" status ⁇ "Internet usage” status ⁇ "Customer service usage" status
- a “link not established” state is a state in which a layer 2 link has not been established between the wireless LAN slave device 8 and the wireless LAN access point 10A. All the wireless LAN slave devices 8 that attempt connection are treated as being in a "link unestablished” state.
- the "link established" state is a state in which the wireless LAN link establishment process between the wireless LAN slave device 8 and the wireless LAN access point 10A has ended.
- the "IP address assigned" state is a state in which the IP address assignment process from the wireless LAN access point 10A to the wireless LAN slave device 8 has ended. In this state, the wireless LAN slave device 8 is ready for IP communication.
- the "using the Internet” state is a state in which Internet traffic is occurring, such as when the user operates the wireless LAN slave device 8 to browse the Web.
- the transition is made to "internet in use”
- the value of actual use in the connection record information is set to "actually used”.
- the "using customer service” state is a state in which the user is using the wireless LAN slave device 8 to obtain coupons at a convenience store or the like.
- the status is changed to "using customer service”
- the value of actual usage of the connection record information is "actually used” as in the "using Internet” state.
- FIG. 7 is a flowchart showing state transition of the wireless LAN slave device 8 in relation to the wireless LAN access point 10A.
- step S11 When connecting to the wireless LAN access point 10A, all the wireless LAN slave devices 8 are initially in a "link not established” state (step S11).
- the wireless LAN slave device 8 By completing the link establishment process, the wireless LAN slave device 8 enters the "link established" state (step S12).
- step S11 If the IP address assignment process from the wireless LAN access point 10A to the wireless LAN slave device 8 is not completed in the "link established” state, the wireless LAN slave device 8 again enters the "link unestablished” state (step S11).
- the wireless LAN slave device 8 When the IP address assignment process from the wireless LAN access point 10A to the wireless LAN slave device 8 is completed in the "link established" state, the wireless LAN slave device 8 enters the "IP address assigned” state (step S13).
- the wireless LAN IP address return processing is performed for the child device 8 .
- the wireless LAN slave device 8 is put into the "link unestablished” state again (step S11).
- the wireless LAN slave device 8 If the user authentication process is completed in the wireless LAN slave device 8 within a certain period of time after entering the "IP address assigned" state, the wireless LAN slave device 8 enters the "internet in use” state (step S14).
- the wireless LAN IP address return processing is performed for the child device 8 .
- the wireless LAN slave device 8 is put into the "link unestablished" state again (step S11).
- step S15 when the screen display of the wireless LAN slave device 8 transitions to the customer service use screen display within a certain period of time after entering the "IP address assigned" state, the wireless LAN slave device 8 changes to the "customer service in use” state. becomes (step S15).
- wireless IP address return processing is performed for the LAN slave device 8 .
- the wireless LAN slave device 8 is put into the "link unestablished" state again (step S11).
- the wireless LAN slave device 8 transitions to the "using the Internet” state or the "using customer service” state. Ideally, the IP address issuance process should be performed only for However, it is unknown whether the wireless LAN slave device 8 will finally transition to the "using the Internet” state or the "using customer service” state before connecting to the wireless LAN access point 10A.
- the wireless LAN access point 10A determines the possibility of the wireless LAN slave device 8 transitioning to the "using the Internet” state or the "using customer service” state based on the aforementioned connection record information. Then, for the wireless LAN slave device 8 determined to have a high possibility of transitioning to the "using the Internet” state or the "using customer service” state, the IP address output processing is performed as "actively available". On the other hand, for a wireless LAN slave device 8 that tends not to transition to either the "using the Internet” state or the "using customer service” state, it is judged as "not positively usable” and issuance of an IP address is suppressed.
- the following is a specific example of active use determination of the wireless LAN slave device 8 using past connection record information accumulated in the wireless LAN access point 10A.
- connection Method 2 Method for Judging Positive Usability of Wireless LAN Slave Device with Small Number of Connection Record Information
- the access point 10A determines that "positive availability exists". In this case, too, the wireless LAN controller 4 may be inquired, and the connection record information and positive availability determination results at the other wireless LAN access points 10A may be used as a reference.
- ⁇ Concrete Example 2> In the case where there are cases in which there is actual use even though it is determined that there is no "positive use”, the positive determination is changed to "positive use” from the next time onwards.
- Specific example 3> If it is determined that there is "positive use”, but there are cases where it is not used only in the morning from Monday to Friday, and from the next time, the information on the processing time will be taken into account and the data will be used in the morning. However, it is judged to be “not positively usable”.
- ⁇ Concrete Example 4> In Concrete Example 3, positive availability of the same wireless LAN slave device 8 is determined based on past connection record information for evenings from Monday to Friday and Saturdays and Sundays.
- the accuracy of positive usability determination is enhanced by statistical trends based on the day of the week and time of day.
- FIG. 4 A more specific example thereof is shown in FIG.
- the wireless LAN access point 10A determines presence/absence of active usage according to the category to which the user of the wireless LAN slave device 8 connected to the wireless LAN access point 10A belongs.
- a wireless LAN access point 10A is installed in a hamburger shop or a convenience store. Users of wireless LAN slave devices 8 connected to such a wireless LAN access point 10A can be classified into the following categories.
- IP addresses were issued from wireless LAN access points to all of the above users. However, only user (1b), user (2aii), and user (2aiii) among the above users are actually actively performing IP communication.
- the wireless LAN access point 10A according to this embodiment distinguishes user (1b), user (2aii), and user (2aiii) from other users by the method described below. Then, only users who are actually positively performing IP communication are judged to be “actively usable”.
- Radio wave reaching power to access point ⁇ RLTH Users who do not enter the store
- Radio wave reaching power to the access point ⁇ RLTH Users who enter the store
- users (1a), users (2ai), and users (2b) who do not actively use the service stay without transitioning to the user authentication screen or the customer service use screen, so they should actively use the service in this respect. It can be distinguished from the user.
- the following method can be used to determine whether the user (2a) who entered the store and made a purchase is the user (2ai), the user (2aii), or the user (2aiii).
- Each value of Ta and Tb is the upper limit of the time an active user stays on the service screen/user authentication screen display. Therefore, by statistically processing these time values in various wireless LAN slave devices 8, the time (DHCP lease time) for assigning an IP address can be used as a guideline.
- the wireless LAN access point 10A allocates communication resources to the wireless LAN slave device 8, That is, the IP address is issued.
- the following three parameters are used to determine whether the IP address can be assigned.
- RLTH Threshold power reaching the wireless LAN access point 10A for determining whether or not the wireless LAN slave device 8 enters the store
- Ta Reference transition time to the customer service screen, that is, display of the service screen/user authentication screen After that, the time until the majority of active users transition to the customer service use screen display
- Tb Reference transition time to the user authentication screen, that is, the active users after the service screen/user authentication screen is displayed Time until the majority of users transition to user authentication processing
- FIG. 8 to 10 are flowcharts showing the connection flow of the wireless LAN slave device 8 to the wireless LAN access point 10A.
- step S101 when the wireless LAN slave device 8 approaches the vicinity of the wireless LAN access point 10A (step S101), the wireless LAN access point 10A receives radio waves from the wireless LAN slave device 8. (step S102).
- the wireless LAN access point 10A Upon receiving radio waves from the wireless LAN slave device 8, the wireless LAN access point 10A determines whether the wireless LAN slave device 8 actively uses the public wireless LAN service based on the accumulated connection record information. is positively used (step S103). In addition to the connection record information accumulated by the wireless LAN access point 10A itself, the connection record information of the other wireless LAN access points 10A accumulated in the wireless LAN controller 4 can also be used for positive availability determination. .
- An IP address may be issued to the wireless LAN slave device 8 that is expected to actively use the public wireless LAN service as a result of the active availability determination.
- connection processing to the wireless LAN access point 10A is performed by applying the flow A shown in FIG.
- the IP address should not be assigned as much as possible to the wireless LAN slave device 8, which is not expected to actively use the public wireless LAN service. 10 is applied to the wireless LAN slave device 8 determined to have no active use, connection processing to the wireless LAN access point 10A is performed.
- the wireless LAN access point 10A first determines whether or not the radio wave arrival power from the wireless LAN slave device 8 is equal to or greater than RLTH (step S111). The wireless LAN access point 10A does not process the wireless LAN slave device 8 whose radio wave arrival power is less than RLTH. The reason for this is that users who are expected to actively use the wireless LAN access point 10A are expected to approach the wireless LAN access point 10A.
- the wireless LAN access point 10A When the radio wave arrival power is equal to or higher than RLTH, the wireless LAN access point 10A performs wireless LAN link connection processing to the wireless LAN slave device 8 (step S112). Since the wireless LAN slave device 8 that is the target of the wireless LAN link connection process is a terminal that can be expected to be actively used, the wireless LAN access point 10A shifts to the IP address issue process as it is when the wireless LAN link connection process is completed ( step S113).
- the wireless LAN access point 10A Upon completion of the IP address issuing process, the wireless LAN access point 10A causes the wireless LAN slave device 8 to display the service screen/user authentication screen (step S114).
- the user who has the wireless LAN slave device 8 can use customer service such as coupons (step S115). If the user authentication screen is displayed within Tb after the service screen/user authentication screen is displayed, public wireless LAN connection user authentication processing for the user possessing the wireless LAN slave device 8 is performed (step S116). Moreover, authentication processing for users connected to the public wireless LAN is also performed for users who are able to use the customer service. Upon completion of the user authentication process, the user can connect to and use the Internet using the wireless LAN slave device 8 (step S117).
- the wireless LAN access point 10A performs IP address return processing for recovering the IP address from the wireless LAN slave device 8 in order to prevent the issued IP address from being wasted (step S118).
- flow B includes step S119 that does not exist in flow A shown in FIG.
- the wireless LAN access point 10A executes a "backward protection process" for suppressing as much as possible the assignment of the IP address to the wireless LAN slave device 8 which is not expected to be actively used.
- the IP address issue process is not unconditionally completed, and the IP address is issued on the condition that the wireless LAN link connection process is retried X times. pay out.
- the wireless LAN slave device 8 for which processing by flow B is selected is a terminal that cannot be expected to be actively used, it is desired not to shift to IP address assignment processing as much as possible.
- the determination result of active usage determination based on the past connection record information is different from the actual one, that is, the possibility exists that the wireless LAN slave device 8 is the terminal of the user who wants to actively use it.
- the IP address is not issued to the wireless LAN slave device 8 of the user who does not actively use it, and the IP address is given to the wireless LAN slave device 8 of the user who wants to actively use it. can be paid out.
- the wireless LAN access point 10A has past connection record information accumulated in itself and past connection record information collected in the wireless LAN controller 4. , and the active availability determination of the wireless LAN slave device 8 is performed. Then, connection processing is performed based on the determination result of the positive availability determination. As a result, useless assignment of IP addresses can be suppressed as much as possible in public wireless LAN services provided at convenience stores, etc., and IP addresses are not assigned to wireless LAN slave units 8 that really require assignment of IP addresses. be able to do it.
- the wireless LAN access point 10A displays the service screen/user authentication screen. IP address return processing is performed after a certain period of time has passed since the display. As a result, useless IP addresses can be collected early. Conversely, the wireless LAN access point 10A performs backward protection processing as a remedy when the wireless LAN slave device 8 determined to be unusable is actually a terminal using the public wireless LAN service. This makes it possible to avoid a situation in which the wireless LAN slave device 8 that actually wants to use the public wireless LAN service cannot use the public wireless LAN service.
- FIG. 11 is a block diagram showing the configuration of a hotspot type wireless LAN access point 10B according to the second embodiment.
- the wireless LAN access point 10B includes an IP network interface 11, a wireless LAN connection processing section 12B, a wireless LAN communication section 13, a connection record information accumulation section 100, and a connection control section .
- the difference from the convenience store type wireless LAN access point 10A according to the first embodiment is the configuration of the wireless LAN connection processing unit 12B.
- the wireless LAN connection processing unit 12B performs processing when the wireless LAN slave device 8 connects to the wireless LAN access point 10B.
- the wireless LAN connection processing unit 12B includes a wireless LAN link connection processing unit 14, an IP address issue processing unit 15, a screen display processing unit 16B, a user authentication processing unit 18, and a traffic monitoring unit 19.
- the hotspot type wireless LAN access point 10B usually does not provide customer service unlike the convenience store type wireless LAN access point 10A. Therefore, unlike the wireless LAN connection processing unit 12A according to the first embodiment, the wireless LAN connection processing unit 12B does not have a customer service use screen display unit, and the functions of the screen display processing unit 16B are also different. be.
- the screen display processing unit 16B displays a user authentication screen required when connecting to the Internet using a public wireless LAN service on the Web browser installed in the wireless LAN slave device 8. Since the wireless LAN connection processing unit 12B does not have a customer service usage screen display unit, it does not perform the service screen display processing performed by the screen display processing unit 16A according to the first embodiment. In response to the operation for user authentication by the user operation, the screen display processing unit 16B passes the processing to the user authentication processing unit 18. FIG.
- connection record information accumulation unit 100 accumulates "connection record information" obtained by processing the "processing log" of the wireless LAN access point 10B when the wireless LAN slave device 8 connects to the wireless LAN access point 10B.
- Information accumulated in the connection record information accumulation unit 100 is aggregated in the wireless LAN controller 4 .
- the connection control unit 102 refers to the accumulated connection record information and determines whether or not the wireless LAN slave device 8 connected to the wireless LAN access point 10B is a user actively using the public wireless LAN.
- FIG. 12 is a table showing an example of a "processing log" in the wireless LAN access point 10B. There is a difference in the recorded "process content" from the convenience store type wireless LAN access point 10A according to the first embodiment.
- the "processing content” is any of the following. ⁇ Start wireless LAN link connection processing ⁇ End wireless LAN link connection processing ⁇ Start IP address issue processing ⁇ End IP address issue processing ⁇ Start user authentication screen display processing ⁇ End user authentication process ⁇ End user authentication process ⁇ Internet connection usage status ⁇ IP address return processing started ⁇ IP address return processing completed
- FIG. 13 is a diagram specifically showing an example of conversion from a processing log by the wireless LAN access point 10B to connection record information.
- the wireless LAN slave device 8 having the MAC address “yy:yy:yy:yy:yy:yy:yy” connects to the wireless LAN access point 10A on Friday, February 1, 2021, at 8:00 am.
- the processing log shows that the processing started at 1 minute and 2 seconds.
- the maximum reaching power at the time of terminal connection, which is recorded in the processing log is -70 dBm.
- the processing log contains evidence that the display of the user authentication screen did not shift to user authentication processing, but shifted to IP address return processing. From this, it can be determined that the assigned IP address was useless, so the actual usage result in the connection record information is set to "not used”.
- the "state" of the wireless LAN slave device 8 in relation to the wireless LAN access point 10B is defined as follows. The contents of each state are as described in the first embodiment. ⁇ "Link not established” status ⁇ "Link established” status ⁇ "IP address assigned" status ⁇ "Internet in use” status
- FIG. 14 is a flowchart showing state transition of the wireless LAN slave device 8 in relation to the wireless LAN access point 10B.
- This embodiment differs from the first embodiment in the state transition after the wireless LAN slave device 8 is in the "IP address assigned” state.
- IP address return processing is performed for the wireless LAN slave device 8 if the transition to user authentication processing is not performed within a certain period of time.
- the wireless LAN slave device 8 is put into the "link unestablished” state again (step S11).
- the wireless LAN slave device 8 If the user authentication process is completed in the wireless LAN slave device 8 within a certain period of time after entering the "IP address assigned" state, the wireless LAN slave device 8 enters the "internet in use” state (step S14). If there is not a certain amount of traffic within a certain amount of time after entering the "using the Internet” state, the wireless LAN slave device 8 is subjected to IP address return processing. As a result, the wireless LAN slave device 8 is put into the "link unestablished" state again (step S11).
- the wireless LAN access point 10B determines whether the wireless LAN slave device 8 is “in use of the Internet” based on the connection record information of the wireless LAN slave device 8 accumulated in itself or in the wireless LAN controller 4. Determine the probability of transitioning to a state. Then, for the wireless LAN slave device 8 determined to have a high possibility of transitioning to the "internet-using" state, the IP address assignment processing is performed as "actively usable”. On the other hand, for the wireless LAN slave device 8 that tends not to transition to the "internet-using" state, it is judged as "no active use", and issuance of the IP address is suppressed.
- the specific example of active use determination of the wireless LAN slave device 8 using the past connection record information described in the first embodiment is also applied to the wireless LAN access point 10B.
- the wireless LAN access point 10B allocates communication resources to the wireless LAN slave device 8 based on the determination results of the active use determination, that is, assigns IP addresses. conduct.
- the process of assigning the IP address to the wireless LAN slave device 8 by the wireless LAN access point 10B will be described below with reference to FIGS. 15 to 17 showing the connection flow of the wireless LAN slave device 8 to the wireless LAN access point 10B.
- FIGS. 15 to 17 showing the connection flow of the wireless LAN slave device 8 to the wireless LAN access point 10B.
- the description of the processing common to the connection flow executed in the first embodiment will be simplified.
- step S101 when the wireless LAN slave device 8 approaches the vicinity of the wireless LAN access point 10B (step S101), the wireless LAN access point 10B receives radio waves from the wireless LAN slave device 8. (step S102).
- the wireless LAN access point 10B Upon receiving radio waves from the wireless LAN slave device 8, the wireless LAN access point 10B determines whether the wireless LAN slave device 8 actively uses the public wireless LAN service based on the accumulated connection record information. is positively used (step S103).
- the IP address may be assigned to the wireless LAN slave device 8 that is expected to be actively used, so the flow A shown in FIG. 16 is applied to perform connection processing to the wireless LAN access point 10B.
- the wireless LAN access point 10B first determines whether or not the radio wave arrival power from the wireless LAN slave device 8 is equal to or greater than RLTH (step S111). The wireless LAN access point 10B does not perform the wireless LAN link connection process for the wireless LAN slave device 8 whose radio wave arrival power is less than RLTH.
- the wireless LAN access point 10B performs wireless LAN link connection processing for the wireless LAN slave device 8 (step S112), and when the wireless LAN link connection processing is completed, the IP address assignment processing is performed as it is. (Step S113).
- the wireless LAN access point 10B Upon completion of the IP address issuing process, the wireless LAN access point 10B causes the wireless LAN slave device 8 to display a user authentication screen (step S120). If the user authentication screen is displayed within Tb after the user authentication screen is displayed, the public wireless LAN connection user authentication process for the user possessing the wireless LAN slave device 8 is performed (step S116). Upon completion of the user authentication process, the user can connect to and use the Internet using the wireless LAN slave device 8 (step S117). On the other hand, if Tb is exceeded after the user authentication screen is displayed, it can be determined that the user does not actively use the wireless LAN access point 10B. Processing is performed (step S118).
- connection processing to the wireless LAN access point 10B is performed by applying the flow B shown in FIG.
- Flow B includes step S119 of "rear protection processing” that does not exist in flow A shown in FIG.
- the contents of the "rear protection process” are common to those of the first embodiment.
- the "backward protection process” is executed without completing the IP address issue process unconditionally.
- the IP address is assigned to the wireless LAN extension device 8 of the user who wants to actively use the public wireless LAN service without assigning the IP address to the wireless LAN extension device 8 of the user who does not actively use the public wireless LAN service. can be done.
- the wireless LAN access point 10B performs IP address return processing after a certain period of time has elapsed since the user authentication screen was displayed. As a result, useless IP addresses can be collected early. Furthermore, the backward protection process after the end of the wireless LAN link connection process can avoid a situation in which the wireless LAN slave device 8 that actually wants to use the public wireless LAN service cannot use the public wireless LAN service.
- FIG. 18 is a block diagram showing the configuration of a railway-type wireless LAN access point 10C according to the third embodiment.
- the wireless LAN access point 10C includes an IP network interface 11, a wireless LAN connection processing section 12C, a wireless LAN communication section 13, a connection record information accumulation section 100, and a connection control section .
- the wireless LAN access point 10A of the convenience store type according to the first embodiment and the wireless LAN access point 10B of the hotspot type according to the second embodiment differ in the configuration of the wireless LAN connection processing unit 12C.
- the wireless LAN connection processing unit 12C performs processing when the wireless LAN slave device 8 connects to the wireless LAN access point 10C.
- the wireless LAN connection processing unit 12 ⁇ /b>C includes a wireless LAN link connection processing unit 14 , an IP address issue processing unit 15 and a traffic monitoring unit 19 .
- the railroad-type wireless LAN access point 10C does not require user authentication processing to use the public wireless LAN service. Therefore, unlike the wireless LAN connection processing unit 12B according to the second embodiment, the wireless LAN connection processing unit 12C does not include a screen display processing unit and a user authentication processing unit.
- connection record information accumulation unit 100 accumulates "connection record information" obtained by processing the "processing log" of the wireless LAN access point 10C when the wireless LAN slave device 8 is connected to the wireless LAN access point 10C.
- Information accumulated in the connection record information accumulation unit 100 is aggregated in the wireless LAN controller 4 .
- the connection control unit 102 refers to the accumulated connection record information and determines whether or not the wireless LAN slave device 8 connected to the wireless LAN access point 10C is a user actively using the public wireless LAN.
- FIG. 19 is a table showing an example of a "processing log" in the wireless LAN access point 10C.
- the convenience store type wireless LAN access point 10A according to the first embodiment and the hotspot type wireless LAN access point 10B according to the second embodiment differ in the recorded "process content".
- the "processing content” is any of the following. ⁇ Start of wireless LAN link connection processing ⁇ End of wireless LAN link connection processing ⁇ Start of IP address delivery processing ⁇ End of IP address delivery processing ⁇ Internet connection usage status
- FIG. 20 is a diagram specifically showing an example of conversion from a processing log by the wireless LAN access point 10C to connection record information.
- the wireless LAN slave device 8 having the MAC address “yy:yy:yy:yy:yy:yy:yy” connects to the wireless LAN access point 10A on Friday, February 1, 2021, at 8:00 am.
- the processing log shows that the processing started at 1 minute and 2 seconds.
- the maximum reachable power at the time of terminal connection that remains in the processing log is -85 dBm.
- the processing log contains evidence that Internet traffic occurred before the IP address return processing was started. From this, it can be determined that the assigned IP address was not wasted, so the actual usage result in the connection record information is set to "actual usage”.
- the “state” of the wireless LAN slave device 8 in relation to the wireless LAN access point 10C is defined as follows. The contents of each state except for the "Internet available" state are as described in the first embodiment. ⁇ "Link not established” status ⁇ "Link established” status ⁇ "IP address assigned" status ⁇ "Internet available” status ⁇ "Internet in use” status
- the "Internet available” state is a state in which Internet connection is possible. This is a peculiar condition in relation to the railway-type wireless LAN access point 10C. In the railroad type, if an IP address is assigned, Internet connection is possible unconditionally. In order to distinguish whether there is active use or not, if a certain amount of traffic occurs within a certain period of time, the state is changed to "internet in use", otherwise the assigned IP address is collected and "link is not established”. ” state.
- FIG. 21 is a flow chart showing state transition of the wireless LAN slave device 8 in relation to the wireless LAN access point 10C.
- This embodiment differs from the first and second embodiments in the state transition after the wireless LAN slave device 8 is in the "IP address assigned” state.
- the wireless LAN slave device 8 after entering the "IP address assigned” state, the wireless LAN slave device 8 unconditionally transitions to the "Internet available” state (step S15). Then, when there is a certain amount of traffic within a certain period of time after entering the "internet available” state, the wireless LAN slave device 8 enters the "internet in use” state (step S14).
- the wireless LAN slave device 8 If there is not a certain amount of traffic within a certain amount of time after entering the "Internet available" state, the wireless LAN slave device 8 will be subjected to IP address return processing. As a result, the wireless LAN slave device 8 is put into the "link unestablished” state again (step S11). In addition, the IP address return processing is performed for the wireless LAN slave device 8 even when there is no traffic volume of a certain amount within a certain period of time after the "internet is in use” state. As a result, the wireless LAN slave device 8 is put into the "link unestablished” state again (step S11).
- the wireless LAN access point 10 ⁇ /b>C determines whether the wireless LAN slave device 8 is “using the Internet” based on the connection record information of the wireless LAN slave device 8 accumulated in itself or in the wireless LAN controller 4 . Determine the probability of transitioning to a state. Then, for the wireless LAN slave device 8 determined to have a high possibility of transitioning to the "internet-using" state, the IP address assignment processing is performed as "actively usable". On the other hand, for the wireless LAN slave device 8 that tends not to transition to the "internet-using" state, it is judged as "no active use", and issuance of the IP address is suppressed.
- the specific example of active use determination of the wireless LAN slave device 8 using the past connection record information described in the first embodiment is also applied to the wireless LAN access point 10C.
- the wireless LAN access point 10C allocates communication resources to the wireless LAN slave device 8 based on the determination results of the active usage determination, that is, assigns IP addresses. conduct.
- the process of assigning the IP address to the wireless LAN slave device 8 by the wireless LAN access point 10C will be described below with reference to FIGS. 22 to 24 showing the connection flow of the wireless LAN slave device 8 to the wireless LAN access point 10C.
- FIGS. 22 to 24 showing the connection flow of the wireless LAN slave device 8 to the wireless LAN access point 10C.
- the description of the processing common to the connection flow executed in the first embodiment or the second embodiment will be simplified.
- step S101 when the wireless LAN slave device 8 approaches the vicinity of the wireless LAN access point 10C (step S101), the wireless LAN access point 10C receives radio waves from the wireless LAN slave device 8. (step S102).
- the wireless LAN access point 10C determines whether the wireless LAN slave device 8 actively uses the public wireless LAN service based on the accumulated connection record information. is positively used (step S103).
- the IP address may be assigned to the wireless LAN slave device 8 that is expected to actively use the public wireless LAN service.
- connection processing is performed.
- the wireless LAN access point 10C first determines whether or not the radio wave arrival power from the wireless LAN slave device 8 is equal to or greater than RLTH (step S111).
- the wireless LAN access point 10C does not perform the wireless LAN link connection process for the wireless LAN slave device 8 whose radio wave arrival power is less than RLTH.
- the wireless LAN access point 10C performs wireless LAN link connection processing for the wireless LAN slave device 8 (step S112), and when the wireless LAN link connection processing is completed, the IP address assignment processing is performed as it is. (Step S113). Upon completion of the IP address assignment process, the user can connect to and use the Internet using the wireless LAN slave device 8 (step S117).
- the wireless LAN access point 10C determines whether or not the amount of traffic in a predetermined period of time is equal to or greater than a predetermined amount (step S121). As long as a certain amount of traffic or more is maintained, the state in which the wireless LAN slave device 8 can be connected to the Internet is maintained (step S117). On the other hand, if the amount of traffic in the predetermined time is less than the predetermined amount, it can be determined that the user does not actively use the wireless LAN access point 10C. (step S118).
- connection processing to the wireless LAN access point 10C is performed by applying the flow B shown in FIG.
- Flow B includes step S119 of "rear protection processing” that does not exist in flow A shown in FIG.
- the contents of the "rear protection process” are common to those of the first and second embodiments.
- the "backward protection process” is executed without completing the IP address issue process unconditionally.
- the IP address is assigned to the wireless LAN extension device 8 of the user who wants to actively use the public wireless LAN service without assigning the IP address to the wireless LAN extension device 8 of the user who does not actively use the public wireless LAN service. can be done.
- the wireless LAN access point 10C performs IP address return processing if the amount of traffic in a predetermined period of time when using the Internet connection is less than a certain amount. As a result, useless IP addresses can be collected early. Furthermore, the backward protection process after the end of the wireless LAN link connection process can avoid a situation in which the wireless LAN slave device 8 that actually wants to use the public wireless LAN service cannot use the public wireless LAN service.
- FIG. 25 is a block diagram showing an example of the hardware configuration of the wireless LAN access point 10. As shown in FIG. 25
- Each function of the wireless LAN access points 10A, 10B, and 10C shown in FIGS. 2, 11, and 18 is implemented by the CPU 21, flash memory 22, and RAM 23, as shown in FIG.
- the flash memory 22 stores one or more programs executable by the CPU 21 and various information related thereto.
- the CPU 21 executes each function of the wireless LAN access points 10A, 10B, 10C, specifically, the wireless LAN connection processing units 12A, 12B, 12C, the connection record information accumulation unit 100, and the connection control unit 102. is realized.
- the program can be stored in a computer-readable recording medium, which is an auxiliary storage device, or can be provided through a network.
- the wireless communication system of the present disclosure is not limited to the public wireless LAN system as in the above embodiment, but is an in-house wireless LAN system, a system that connects a mobile phone base station and a terminal in 4G and 5G mobile phone services, a satellite It can be applied to various wireless communication systems including IoT systems.
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Abstract
Description
・デマンドアサイン方式(端末のリソース要求に基づきリソースを割り当てる方式)
・純ALOHA方式
・スロットALOHA方式
・CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance)
・ポーリング方式
(1)データ通信したい端末が何らかのアクションを起こす方式
・デマンドアサイン方式
・純ALOHA方式
・スロットALOHA方式
・CSMA/CA
(2)端末がアクションを起こさない方式
・ポーリング方式
まず、本開示の各実施形態に共通の公衆無線LANシステムの構成について図1を用いて説明する。公衆無線LANシステム2は、1台の無線LANコントローラ4と複数台(n台)の無線LANアクセスポイント10と、IPネットワーク6とから構成され、無線LAN子機8のユーザに対して公衆無線LANサービス(無線通信サービス)を提供する。無線LANアクセスポイント10は、無線端末である多数の無線LAN子機8を収容する無線基地局装置である。IPネットワーク6は、無線LANコントローラ4と複数台の無線LANアクセスポイント10とを接続する通信ネットワークである。無線LANコントローラ4は、複数台の無線LANアクセスポイント10の監視制御を行う制御装置としての機能を有する。
2-1.無線LANアクセスポイントの構成
図2は、第1実施形態に係るコンビニエンスストア型の無線LANアクセスポイント10Aの構成を示すブロック図である。無線LANアクセスポイント10Aは、IPネットワークインタフェース11、無線LAN接続処理部12A、無線LAN通信部13、接続実績情報蓄積部100、及び接続制御部102を備える。
2-2-1.処理ログの説明
「処理ログ」とは、図3のテーブルに示すように、無線LAN子機8が無線LANアクセスポイント10Aに接続し始めてから接続を終了するまでの間に、無線LANアクセスポイント10Aが無線LAN子機8に対してどのような処理を行ったかのログである。具体的には「処理ログ」には以下の情報が含まれる。
・処理ログID
・無線LAN子機MACアドレス
・処理日
・処理時刻
・到達電力
・処理内容
・インターネットトラヒック量
・無線LANリンク接続処理開始
・無線LANリンク接続処理終了
・IPアドレス払い出し処理開始
・IPアドレス払い出し処理終了
・サービス画面/ユーザ認証画面表示処理開始
・サービス画面/ユーザ認証画面表示処理終了
・カスタマーサービス利用画面表示開始
・カスタマーサービス利用画面表示終了
・カスタマーサービス利用中状態
・ユーザ認証処理開始
・ユーザ認証処理終了
・インターネット接続利用状態
・IPアドレス返却処理開始
・IPアドレス返却処理完了
「接続実績情報」とは、図4に示すように、前述の「処理ログ」から以下の情報を抽出し、接続実績ごとに1行にまとめたテーブルである。より詳しくは、図5に示すように、無線LANアクセスポイント10に接続した全ての無線LAN子機8の「処理ログ」から以下の情報を抽出し、時系列に並べたものが、無線LANアクセスポイント10の「接続実績情報」である。
・接続実績ID
・無線LAN子機MACアドレス
・処理日
・曜日
・処理開始時刻
・最大到達電力
・無線LAN子機接続時の積極利用性判定結果
・実際の利用結果
上述のように、無線LANアクセスポイント10A及び無線LANコントローラ4に蓄積される接続実績情報には、IPアドレスの払い出しを受けた無線LAN子機8によるインターネット或いはカスタマーサービスの実際の利用結果が含まれている。無線LAN子機8が、インターネット或いはカスタマーサービスを利用しているかは、無線LAN子機の“状態”から判断される。無線LANアクセスポイント10Aとの関係において、無線LAN子機8の“状態”は以下のように定義される。
・「リンク未確立」状態
・「リンク確立」状態
・「IPアドレス割当済」状態
・「インターネット利用中」状態
・「カスタマーサービス利用中」状態
2-4-1.接続実績情報を用いた積極利用性判定
限りある通信リソースであるIPアドレスの無駄な払い出しを避けるためには、「インターネット利用中」状態又は「カスタマーサービス利用中」状態に遷移する無線LAN子機8に対してだけIPアドレス払い出し処理を行うのが理想である。しかし、無線LANアクセスポイント10Aへの接続前から無線LAN子機8が最終的に「インターネット利用中」状態又は「カスタマーサービス利用中」状態に遷移するかは分からない。
無線LANアクセスポイント10Aに過去の接続実績情報が全く蓄積されていない無線LAN子機8は、初めて接続してきた無線LAN子機8である。この場合、無線LANアクセスポイント10Aは“積極利用性あり”と判定する。ただし、無線LANコントローラ4に照会をかけ、他の無線LANアクセスポイント10Aでの接続実績情報や積極利用性判定の結果を参考にしてもよい。
無線LANアクセスポイント10Aに蓄積された過去の接続実績情報が少ない無線LAN子機8に対しては、無線LANアクセスポイント10Aは“積極利用性あり”と判定する。この場合も、無線LANコントローラ4に照会をかけ、他の無線LANアクセスポイント10Aでの接続実績情報や積極利用性判定の結果を参考にしてもよい。
無線LANアクセスポイント10Aに蓄積された過去の接続実績情報が比較定多い無線LAN子機8に対しては、無線LANアクセスポイント10Aは、「積極利用性判定結果」と「実際の利用結果」との組み合わせにより積極利用性判定を行う。以下に判定方法3による積極利用性判定の具体例を列挙する。
<具体例1>“積極利用性あり”と判定しているのに実際には利用がなかったケースが続いた場合、次回からは積極性判定を“積極利用性なし”に変更する。
<具体例2>“積極利用性なし”と判定しているのに実際には利用があったケースが続いた場合、次回からは積極性判定を“積極利用性あり”に変更する。
<具体例3>“積極利用性あり”と判定しているのに月~金曜日の朝方だけは決まって利用がなかったケースが続いた場合、次回からは処理時刻の情報を加味して朝方に限っては“積極利用性なし”と判定する。
<具体例4>具体例3において、同じ無線LAN子機8でも月~金の夕刻や土日については、過去の接続実績情報に基づいて積極利用性を判定する。
さらに、無線LANアクセスポイント10Aは、無線LANアクセスポイント10Aに接続してきた無線LAN子機8のユーザが属するカテゴリによって、積極利用性のあり/なしを判定する。無線LANアクセスポイント10Aはハンバーガーショップやコンビニエンスストア店内に設置されている。このような無線LANアクセスポイント10Aに接続する無線LAN子機8のユーザは、以下のようなカテゴリに分類することができる。
(1)店舗に入店しないユーザ
(1a)店舗付近をたまたま通ったユーザ
(1b)店舗付近に滞在しインターネット接続を利用するユーザ
(2)店舗に入店するユーザ
(2a)買い物に来たユーザ
(2ai)単に買い物をするだけのユーザ
(2aii)カスタマーサービス(無料クーポン取得等)を使って買い物をするユーザ
(2aiii)店舗内でインターネット接続を利用するユーザ
(2b)買い物をしないユーザ(銀行ATM利用、トイレ借用等)
アクセスポイントへの電波到達電力<RLTH・・・入店しないユーザ
アクセスポイントへの電波到達電力≧RLTH・・・入店するユーザ
・単に買い物をするだけのユーザ(2ai)
→サービス画面/ユーザ認証画面表示で留まる
・カスタマーサービスを使って買い物をするユーザ(2aii)
→サービス画面/ユーザ認証画面表示後、カスタマーサービス利用画面への基準遷移時間であるTa秒以内にカスタマーサービス画面に遷移する
・インターネット接続をするユーザ(2aiii)
→サービス画面/ユーザ認証画面表示後、ユーザ認証画面への基準遷移時間であるTb秒以内に公衆無線LAN接続ユーザ認証画面に遷移する
以上のように行われる積極利用性判定の判定結果に基づいて、無線LANアクセスポイント10Aは、無線LAN子機8への通信リソースの割り当て、すなわち、IPアドレスの払い出しを行う。IPアドレスの払い出しの可否の判定では、以下の3つのパラメータが用いられる。
・RLTH:無線LAN子機8の入店する/しないを判別するための無線LANアクセスポイント10Aへの到達電力閾値
・Ta:カスタマーサービス画面への基準遷移時間、すなわち、サービス画面/ユーザ認証画面表示後、積極的な利用ユーザの大多数がカスタマーサービス利用画面表示に遷移するまでの時間
・Tb:ユーザ認証画面への基準遷移時間、すなわち、サービス画面/ユーザ認証画面表示後、積極的な利用ユーザの大多数がユーザ認証処理に遷移するまでの時間
上述の通り、無線LANアクセスポイント10Aは、それ自体に蓄積されている過去の接続実績情報や、無線LANコントローラ4に集約された過去の接続実績情報を参照し、無線LAN子機8の積極利用性判定を行う。そして、積極利用性判定の判定結果に基づいて接続処理を行う。これにより、コンビエンスストア等で提供される公衆無線LANサービスにおいて無駄なIPアドレスの払い出しを極力抑制することができ、本当にIPアドレス払い出しが必要な無線LAN子機8に対してIPアドレスの払い出しを行うことができるようになる。
3-1.無線LANアクセスポイントの構成
図11は、第2実施形態に係るホットスポット型の無線LANアクセスポイント10Bの構成を示すブロック図である。無線LANアクセスポイント10Bは、IPネットワークインタフェース11、無線LAN接続処理部12B、無線LAN通信部13、接続実績情報蓄積部100、及び接続制御部102を備える。第1実施形態に係るコンビニエンスストア型の無線LANアクセスポイント10Aとは、無線LAN接続処理部12Bの構成に違いがある。
図12は、無線LANアクセスポイント10Bにおける「処理ログ」の例を示すテーブルである。第1実施形態に係るコンビニエンスストア型の無線LANアクセスポイント10Aとは、記録される「処理内容」に違いがある。無線LANアクセスポイント10Bに無線LAN子機8が接続する流れでは、「処理内容」は以下のいずれかとなる。
・無線LANリンク接続処理開始
・無線LANリンク接続処理終了
・IPアドレス払い出し処理開始
・IPアドレス払い出し処理終了
・ユーザ認証画面表示処理開始
・ユーザ認証画面表示処理終了
・ユーザ認証処理開始
・ユーザ認証処理終了
・インターネット接続利用状態
・IPアドレス返却処理開始
・IPアドレス返却処理完了
本実施形態では、無線LANアクセスポイント10Bとの関係において、無線LAN子機8の“状態”は以下のように定義される。各状態の内容は、第1実施形態で説明した通りである。
・「リンク未確立」状態
・「リンク確立」状態
・「IPアドレス割当済」状態
・「インターネット利用中」状態
無線LANアクセスポイント10Bは、それ自身に或いは無線LANコントローラ4に蓄積された無線LAN子機8の接続実績情報に基づいて、無線LAN子機8の「インターネット利用中」状態への遷移の可能性を判定する。そして、「インターネット利用中」状態への遷移の可能性が高いと判定される無線LAN子機8に対し、「積極利用性あり」としてIPアドレス払い出し処理を行う。一方、「インターネット利用中」状態に遷移しない傾向の無線LAN子機8に対しては、「積極利用性なし」としてIPアドレスの払い出しを抑制する。
無線LANアクセスポイント10Bは、積極利用性判定の判定結果に基づいて無線LAN子機8への通信リソースの割り当て、すなわち、IPアドレスの払い出しを行う。以下、無線LANアクセスポイント10Bによる無線LAN子機8へのIPアドレスの払い出し処理について、無線LANアクセスポイント10Bへの無線LAN子機8の接続フローを示す図15乃至図17を用いて説明する。ただし、第1実施形態で実行される接続フローと共通する処理については説明を簡略化する。
上述の通り、無線LANアクセスポイント10Bによれば、ホットスポット型の公衆無線LANサービスにおいて無駄なIPアドレスの払い出しを極力抑制することができる。その結果、本当にIPアドレス払い出しが必要な無線LAN子機8に対してIPアドレスの払い出しを行うことができるようになる。
4-1.無線LANアクセスポイントの構成
図18は、第3実施形態に係る鉄道型の無線LANアクセスポイント10Cの構成を示すブロック図である。無線LANアクセスポイント10Cは、IPネットワークインタフェース11、無線LAN接続処理部12C、無線LAN通信部13、接続実績情報蓄積部100、及び接続制御部102を備える。第1実施形態に係るコンビニエンスストア型の無線LANアクセスポイント10Aや第2実施形態に係るホットスポット型の無線LANアクセスポイント10Bとは、無線LAN接続処理部12Cの構成に違いがある。
図19は、無線LANアクセスポイント10Cにおける「処理ログ」の例を示すテーブルである。第1実施形態に係るコンビニエンスストア型の無線LANアクセスポイント10Aや第2実施形態に係るホットスポット型の無線LANアクセスポイント10Bとは、記録される「処理内容」に違いがある。無線LANアクセスポイント10Cに無線LAN子機8が接続する流れでは、「処理内容」は以下のいずれかとなる。
・無線LANリンク接続処理開始
・無線LANリンク接続処理終了
・IPアドレス払い出し処理開始
・IPアドレス払い出し処理終了
・インターネット接続利用状態
・IPアドレス返却処理開始
・IPアドレス返却処理完了
本実施形態では、無線LANアクセスポイント10Cとの関係において、無線LAN子機8の“状態”は以下のように定義される。「インターネット利用可能」状態を除く各状態の内容は、第1実施形態で説明した通りである。
・「リンク未確立」状態
・「リンク確立」状態
・「IPアドレス割当済」状態
・「インターネット利用可能」状態
・「インターネット利用中」状態
無線LANアクセスポイント10Cは、それ自身に或いは無線LANコントローラ4に蓄積された無線LAN子機8の接続実績情報に基づいて、無線LAN子機8の「インターネット利用中」状態への遷移の可能性を判定する。そして、「インターネット利用中」状態への遷移の可能性が高いと判定される無線LAN子機8に対し、「積極利用性あり」としてIPアドレス払い出し処理を行う。一方、「インターネット利用中」状態に遷移しない傾向の無線LAN子機8に対しては、「積極利用性なし」としてIPアドレスの払い出しを抑制する。
無線LANアクセスポイント10Cは、積極利用性判定の判定結果に基づいて無線LAN子機8への通信リソースの割り当て、すなわち、IPアドレスの払い出しを行う。以下、無線LANアクセスポイント10Cによる無線LAN子機8へのIPアドレスの払い出し処理について、無線LANアクセスポイント10Cへの無線LAN子機8の接続フローを示す図22乃至図24を用いて説明する。ただし、第1実施形態或いは第2実施形態で実行される接続フローと共通する処理については説明を簡略化する。
上述の通り、無線LANアクセスポイント10Cによれば、鉄道型の公衆無線LANサービスにおいて無駄なIPアドレスの払い出しを極力抑制することができる。その結果、本当にIPアドレス払い出しが必要な無線LAN子機8に対してIPアドレスの払い出しを行うことができるようになる。
本開示の各実施形態に共通の無線LANアクセスポイント10のハードウェア構成について図25を参照して説明する。図25は、無線LANアクセスポイント10のハードウェア構成の例を示すブロック図である。
上記実施形態は、本開示の要旨を逸脱しない範囲で種々に変形して実施することができる。すなわち、上記実施形態において各要素の個数、数量、量、範囲などの数に言及されている場合、特に明示した場合や原理的に明らかにその数に特定される場合を除いて、その言及した数に、本開示に係る技術が限定されるものではない。また、上記実施形態において説明する構造等は、特に明示した場合や明らかに原理的にそれに特定される場合を除いて、本開示に係る技術に必ずしも必須のものではない。
4 無線LANコントローラ
6 IPネットワーク
8 無線LAN子機
10,10A,10B,10C 無線LANアクセスポイント
11 IPネットワークインタフェース
12A,12B,12C 無線LAN接続処理部
13 無線LAN通信部
100 接続実績情報蓄積部
102 接続制御部
Claims (8)
- 無線基地局装置であって、
無線端末からの電波の受信に応答して、前記無線端末の過去の接続実績情報に基づき前記無線端末による無線通信サービスの積極利用性を判定することと、
前記無線端末が前記無線通信サービスの積極利用を見込めない端末である場合、前記無線端末による所定の接続動作を条件に前記無線端末に通信リソースを割り当てることと、
前記無線端末が前記無線通信サービスの積極利用を見込める端末である場合、前記所定の接続動作を条件とすることなく前記無線端末に前記通信リソースを割り当てることと、を実行するように構成された
ことを特徴とする無線基地局装置。 - 請求項1に記載の無線基地局装置において、
前記無線端末に前記通信リソースを割り当てた後、前記無線端末による前記無線通信サービスの利用実績が基準実績未満である場合、前記無線端末に前記通信リソースを返却させること、をさらに実行するように構成された
ことを特徴とする無線基地局装置。 - 請求項1又は2に記載の無線基地局装置において、
前記無線端末に前記通信リソースを割り当てた後、所定時間内に前記無線通信サービスが利用されない場合、前記無線端末に前記通信リソースを返却させること、をさらに実行するように構成された
ことを特徴とする無線基地局装置。 - 請求項1乃至3の何れか1項に記載の無線基地局装置において、
前記電波のレベルが所定の閾値以上であることを条件に前記無線端末と前記無線基地局装置との接続処理を行うこと、をさらに実行するように構成された
ことを特徴とする無線基地局装置。 - 請求項1乃至4の何れか1項に記載の無線基地局装置において、
前記無線端末が前記無線基地局装置に接続したときの処理ログから前記接続実績情報を生成することと、
生成した前記接続実績情報を前記無線基地局装置それ自体に蓄積するか、或いは、前記無線基地局装置を含む複数の無線基地局装置を管理する制御装置に蓄積することと、をさらに実行するように構成された
ことを特徴とする無線基地局装置。 - 請求項1乃至5の何れか1項に記載の無線基地局装置において、
前記無線通信サービスは公衆無線LANサービスであり、
前記通信リソースはIPアドレスである
ことを特徴とする無線基地局装置。 - 無線基地局装置と前記無線基地局装置を管理する制御装置とが通信ネットワークで接続されてなる無線通信システムであって、
無線端末からの電波を前記無線基地局装置が受信したことに応答して、前記無線基地局装置或いは前記制御装置に蓄積された前記無線端末の過去の接続実績情報に基づき前記無線端末による無線通信サービスの積極利用性を判定することと、
前記無線端末が前記無線通信サービスの積極利用を見込めない端末である場合、前記無線端末による所定の接続動作を条件に前記無線基地局装置から前記無線端末に通信リソースを割り当てることと、
前記無線端末が前記無線通信サービスの積極利用を見込める端末である場合、前記所定の接続動作を条件とすることなく前記無線基地局装置から前記無線端末に前記通信リソースを割り当てることと、
を実行するように構成された
ことを特徴とする無線通信システム。 - 無線基地局装置による無線通信方法であって、
無線端末からの電波の受信に応答して、前記無線端末の過去の接続実績情報に基づき前記無線端末による無線通信サービスの積極利用性を判定するステップと、
前記無線端末が前記無線通信サービスの積極利用を見込めない端末である場合、前記無線端末による所定の接続動作を条件に前記無線端末に通信リソースを割り当てるステップと、
前記無線端末が前記無線通信サービスの積極利用を見込める端末である場合、前記所定の接続動作を条件とすることなく前記無線端末に前記通信リソースを割り当てるステップと、を含む
ことを特徴とする無線通信方法。
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