JP2020028004A - Wireless communication control system - Google Patents

Abstract

To solve a sticky client problem properly.SOLUTION: A high-density wireless communication control system for controlling a wireless communication system 4, composed of a plurality of APs 2a to STAs 3a, in which an STA performs wireless communication via one of a plurality of Aps, includes: an AP/STA information processing unit for acquiring instantaneous information regarding instantaneous communication quality of at least one of the AP and the STA; a low-quality STA determination unit for determining STA3 performing communication with predetermined communication quality or less, based on the instantaneous information for a predetermined period acquired by the AP/STA information processing unit; and an AP/STA control unit for controlling a change of the AP through the STA determined by the low-quality STA determination unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless communication control system that controls a wireless communication system.

  2. Description of the Related Art A wireless LAN system in which a wireless LAN (Local Area Network) client performs wireless communication via a wireless LAN access point has been known (for example, Patent Document 1 below).

JP 2011-4225 A

  When constructing a wireless LAN system in an environment where people are present at a high density, such as a stadium, it is necessary to arrange wireless LAN access points at a high density (a large amount). In a wireless LAN system in which wireless LAN access points are arranged at high density, when a person carrying a wireless LAN client moves, the wireless LAN client attempts to hand over to an optimal wireless LAN access point. Generally, a handover is performed under the initiative of a wireless LAN client. Therefore, the wireless LAN client that has performed the handover is not always accommodated in an appropriate wireless LAN access point. For example, a sticky client (Sticky Client) that is pulled by a distant wireless LAN access point in a low-quality communication state Problems may occur.

  Here, a general wireless LAN system mainly has a fixed design. In such a wireless LAN system, information on the communication quality of the wireless LAN access point and the wireless LAN client that can be confirmed by the wireless LAN system is only an instantaneous value. It is difficult to distinguish between instantaneous degradation of the radio wave environment and the sticky client problem. That is, there is a problem that it is difficult to solve the sticky client problem in the wireless LAN system.

  Therefore, the present invention has been made in view of such a problem, and an object of the present invention is to provide a wireless communication control system that can appropriately solve the sticky client problem.

  In order to solve the above problems, a wireless communication control system according to one aspect of the present invention is a wireless communication system including a plurality of access points and a terminal, and a terminal is connected via one of the plurality of access points. Is a wireless communication control system that controls a wireless communication system that performs wireless communication, an acquisition unit that acquires instantaneous information related to instantaneous communication quality of at least one of an access point and a terminal, and a predetermined period of time acquired by the acquisition unit. The information processing apparatus includes a determining unit that determines a terminal that is performing communication of a predetermined communication quality or less based on the instantaneous information, and a control unit that controls a change of an access point through the terminal determined by the determining unit.

  According to such a wireless communication control system, a terminal performing communication with a predetermined communication quality or less is determined based on instantaneous information of a predetermined period, and a change of an access point via the determined terminal is controlled. Thereby, since the access point through which the terminal performing low-quality communication can change can be appropriately resolved, the sticky client problem can be solved, and the load between the access points can be distributed. Further, since processing is performed based on the instantaneous information for a predetermined period, instantaneous deterioration of the radio wave environment and the sticky client problem can be easily determined, and the sticky client problem can be more appropriately solved.

  According to the present invention, the sticky client problem can be appropriately solved.

FIG. 1 is a system configuration diagram including a wireless communication control system according to an embodiment of the present invention. FIG. 2 is a functional block diagram of an AP control unit 10. FIG. 3 is a functional block diagram of an information processing unit 30. 5 is a flowchart illustrating a process executed by the wireless communication control system according to the embodiment of the present invention. FIG. 2 is a hardware configuration diagram of the wireless communication control system according to the embodiment of the present invention.

  Hereinafter, a high-density wireless communication control system 1 which is an embodiment of the wireless communication control system will be described in detail with reference to the drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description. The embodiments in the following description are specific examples of the present invention, and are not limited to these embodiments unless otherwise specified.

  FIG. 1 is a system configuration diagram including a high-density wireless communication control system 1 (wireless communication control system). As shown in FIG. 1, the high-density wireless communication control system 1 includes an AP control unit 10, an information storage unit 20, and an information processing unit 30 as functional blocks. The high-density wireless communication control system 1 may be configured by one computer device such as a server, or may be configured by a plurality of computer devices. For example, the high-density wireless communication control system 1 may be a computer device including the AP control unit 10, the information storage unit 20, and the information processing unit 30. Further, for example, the high-density wireless communication control system 1 may be a system including a computer device including the AP control unit 10 and the information processing unit 30 and a computer device including the information storage unit 20. Further, for example, the high-density wireless communication control system 1 may be a system including a computer device including the AP control unit 10 and the information storage unit 20 and a computer device including the information processing unit 30. Further, for example, the high-density wireless communication control system 1 may be a system including a computer device including the AP control unit 10 and a computer device including the information storage unit 20 and the information processing unit 30. Further, at least one of the information storage unit 20 and the information processing unit 30 may be included in the AP control unit 10.

  The high-density wireless communication control system 1 controls the wireless communication system 4. The wireless communication system 4 (wireless communication system) includes a plurality of APs 2 (access points) and one or more STAs 3 (terminals). In the wireless communication system 4, the STA 3 performs wireless communication via one of the plurality of APs 2. The AP 2 is a computer device (radio device, master device, base station, or the like) that wirelessly accesses the STA 3 or accesses the STA 3 to another network via wireless communication. The STA 3 is a computer device (a wireless device, a child device, a UE (User Equipment), etc.) serving as a client of wireless communication. For example, the wireless communication system 4 is a wireless LAN system, the AP 2 is a wireless LAN access point, the STA 3 is a wireless LAN client, and the wireless communication is communication via a wireless LAN.

  In the present embodiment, it is assumed that the wireless communication system 4 is used in an environment where people are present at a high density, such as a stadium, and therefore, the APs 2 are arranged at a high density (large amount). For example, it is assumed that one high-density wireless communication control system 1 controls 100 APs 2 and accommodates 100 STAs 3 (a total of 10,000 STAs 3) for each AP 2.

  As shown in FIG. 1, the wireless communication system 4 includes AP2a, AP2b,... (These are collectively referred to as AP2), and STA3a, STA3b, STA3c,. (These are collectively referred to as STA3). In the communication state shown in FIG. 1, STA3a, STA3b, STA3c,... Perform wireless communication via AP2a. In this case, STA3a, STA3b, STA3c,... Are said to be under (managed by) AP2a, housed in AP2a, or belong to AP2a. Similarly, in the communication state shown in FIG. 1, STA3x, STA3y, STA3z,... Perform wireless communication via AP2b. In this case, STA3x, STA3y, STA3z,... Are said to be under (managed by) AP2b, housed in AP2b, or belong to AP2b. The STA3 appropriately changes (hands over) an access destination to an AP2 different from the AP2 to which the STA3 currently belongs, in accordance with a communication state or an instruction from the AP2 side (including the high-density wireless communication control system 1).

  The AP 2 periodically (for example, once every 10 seconds) or in response to an instruction from another device transmits AP information (instantaneous value data) relating to the instantaneous (instant, measured timing) communication quality of the own device. The measured AP information is transmitted to the AP control unit 10. The AP information may include the identification information of the own device and other information on the AP2. For example, the AP information includes the ID of AP2 (own apparatus), the number of STA3 accommodated by AP2 (own apparatus), a list of IDs of STA3 accommodated by AP2 (own apparatus), and the STA3 accommodated by AP2 (own apparatus). Distribution of SNR (Signal-Noise Ratio), RSSI (Received Signal Strength Indication) of STA3 accommodated by AP2 (own apparatus), noise information, interference information, and measurement date and time. Including one or more. Further, the AP 2 transmits (transfers) STA information received from the STA 3 to be described later to the AP control unit 10.

  The STA 3 periodically (for example, once every 10 seconds) or in response to an instruction from another device, transmits STA information (instantaneous value data) relating to the instantaneous (instant, measured timing) communication quality of the own device. The measured STA information is transmitted to the AP control unit 10 via the AP 2 (to which the own device belongs). The STA information may include identification information of the own device and other information about the STA3. For example, the STA information includes the ID of the STA3 (own device), the SSID (Service Set Identifier), the identification information of the channel being used, and the AP2 (access destination) to which the STA3 (own device) belongs (accommodates). AP2) ID, STA3 (own apparatus) state proximity AP2 information, throughput (up / down), number of retransmissions, RSSI, SNR, QoS (Quality of Service) information, measurement date and time, etc. Including at least one or more.

  Next, the AP control unit 10 will be described with reference to a functional block diagram of the AP control unit 10 shown in FIG. As shown in FIG. 2, the AP control unit 10 includes an AP / STA information processing unit 11 and an AP / STA control unit 12.

  The AP / STA information processing unit 11 transmits the AP information and the STA information received from the AP 2 to the information storage unit 20 via an AP / STA information processing unit 31 of the information processing unit 30 described later. The timing at which the AP / STA information processing unit 11 transmits the AP information and the STA information may be the timing at which the AP information and the STA information are received from the AP 2, the timing at which certain AP information and the STA information are received, or (For example, once a minute). The AP / STA information processing unit 11 may transmit the AP information and the STA information as a set, or may transmit the AP information and the STA information separately.

  The AP / STA control unit 12 controls the corresponding AP 2 and STA 3 based on the AP control instruction and the STA control instruction received from the AP / STA control unit 34 of the information processing unit 30 described below. Specific control will be described later in the description of the AP / STA control unit 34 of the information processing unit 30.

  Next, the information storage unit 20 will be described. The information storage unit 20 receives the AP information and the STA information from the AP 2 and the STA 3 via the AP 2, the AP / STA information processing unit 11 of the AP control unit 10, and the AP / STA information processing unit 31 of the information processing unit 30. , And stores and accumulates the received AP information and STA information. The storage frequency of the information storage unit 20 may be implementation-dependent. For example, the storage frequency of the information storage unit 20 may not necessarily match the transmission frequency of the AP information and the STA information by the AP / STA information processing unit 11 of the AP control unit 10.

  Next, the information processing unit 30 will be described with reference to a functional block diagram of the information processing unit 30 illustrated in FIG. As shown in FIG. 3, the information processing unit 30 includes an AP / STA information processing unit 31 (acquisition unit), an AP / STA information group acquisition unit 32, a low-quality STA determination unit 33 (determination unit), and an AP / STA control unit 34. (Control unit).

  The AP / STA information processing unit 31 acquires at least one of the AP information and the STA information. That is, the AP / STA information processing unit 31 acquires the AP information (instantaneous information) or the STA information (instantaneous information) relating to the instantaneous communication quality of at least one of the AP2 and the STA3. Specifically, the AP / STA information processing unit 31 receives (at least one of) the AP information and the STA information received from the AP / STA information processing unit 11 of the AP control unit 10, and receives the received AP information and the STA information. (At least one of them) is transmitted (transferred) to the information storage unit 20.

  The AP / STA information group acquisition unit 32 refers to the information storage unit 20, and stores the AP information group and the predetermined period (fixed amount) which are the AP information stored in the information storage unit 20 for a predetermined period (a fixed amount or a unitary amount). STA information of at least one of the STA information group, and outputs at least one of the acquired AP information group and STA information group to the low-quality STA determination unit 33 and the AP / STA control unit 34. The timing of acquisition and output by the AP / STA information group acquisition unit 32 may be periodic (for example, once every 10 minutes) or may be timing based on an instruction from a manager or another device.

  Based on at least one of the AP information group and the STA information group acquired (input) by the AP / STA information group acquisition unit 32, the low-quality STA determination unit 33 performs STA3 ( Is determined. The low-quality STA determination unit 33 outputs the determined ID of the STA3 to the AP / STA control unit 34.

  For example, based on the AP information group, the low-quality STA determining unit 33 determines noise information for a predetermined period, interference information for a predetermined period, noise for each channel for a predetermined period, intensity of an interference wave for each channel for a predetermined period, and a predetermined period. Channel utilization rate, throughput (up / down direction) in a predetermined period, the number of STAs 3 accommodated in a predetermined period, number of access STAs 3 in a predetermined period, distribution of SNR of STA 3 in a predetermined period, SNR statistics of STA 3 in a predetermined period, Then, at least one or more of the RSSI statistics of the STA 3 during the predetermined period is calculated, and the STA 3 performing communication with a predetermined communication quality or less is determined based on the calculated information (collective information). For example, the low-quality STA determination unit 33 calculates and refers to the SNR statistics of the STA 3 in a predetermined period, and determines the STA 3 having an SNR equal to or less than a predetermined threshold as the STA 3 performing communication with a predetermined communication quality or less.

  Further, for example, based on the STA information group, the low-quality STA determining unit 33 determines the continuous access time of the predetermined period, the identification information of the channel in use for the predetermined period, the throughput (up / down direction) of the predetermined period, and the predetermined period. Of at least one of the number of retransmissions, the RSSI for a predetermined period, the SNR for a predetermined period, the neighboring AP2 information for a predetermined period, the quality of service (QoS) information for a predetermined period, and the state of the STA3 for a predetermined period. Then, based on the calculated information (collective information), the STA 3 that performs communication with a predetermined communication quality or lower is determined. For example, the low-quality STA determination unit 33 calculates and refers to the number of retransmissions in a predetermined period, and determines the STA3 having the number of retransmissions equal to or greater than a predetermined threshold as the STA3 performing communication with a predetermined communication quality or less.

  Further, for example, the low-quality STA determination unit 33 performs communication of a predetermined communication quality or less based on the above-described information calculated based on the AP information group and the above-described information calculated based on the STA information group. The STA 3 that is present is determined. For example, the low-quality STA determination unit 33 calculates and refers to the SNR statistics of the STA3 in the predetermined period and the number of retransmissions in the predetermined period, and refers to the STA3 in which the SNR is equal to or smaller than the predetermined threshold and the number of retransmissions is equal to or larger than the predetermined threshold. Is determined as STA3 performing communication with a predetermined communication quality or lower.

  The low-quality STA determining unit 33 determines that the same STA 3 is performing communication with a predetermined communication quality or less when a predetermined threshold number of times (for example, three times in five minutes) or more is determined in a predetermined period. The STA3 may be determined as the STA3 performing communication with a predetermined communication quality or lower.

  The low-quality STA determination unit 33 may determine the STA 3 that is performing communication with a predetermined communication quality or less from the STAs 3 via the predetermined AP 2. It is assumed that the predetermined AP 2 is set in advance by an administrator of the high-density wireless communication control system 1 or the like. For example, the low-quality STA determination unit 33 determines STA3 that is performing communication with a predetermined communication quality or lower from among STA3s under the control of the AP2, such as near the entrance of the stadium, where the sticky client problem is likely to occur. You may.

  The AP / STA control unit 34 controls the change of the AP 2 via the STA 3 determined by the low-quality STA determining unit 33 (STA 3 indicated by the ID of the STA 3 input from the low-quality STA determining unit 33). For example, the AP / STA control unit 34 determines an AP2 different from the AP2 through which the determined STA3 passes, and issues an instruction to control the STA3 to pass through the another AP2 by the AP / STA control unit of the AP control unit 10. 12, the AP / STA control unit 12 controls the STA3 and / or the other AP2 based on the instruction so that the STA3 passes through the another AP2. Further, for example, the AP / STA control unit 34 transmits to the AP / STA control unit 12 of the AP control unit 10 an instruction to control the determined STA 3 to be out of the control of the AP 2 via the STA 3, and performs the AP / STA control. Based on the instruction, the unit 12 controls the AP 2 so as to reduce the radio wave intensity of the AP 2 so that the STA 3 goes out of the control of the AP 2 and the STA 3 searches for a new AP 2 as an access destination.

  The AP / STA control unit 34 may control the change of the access point based on the AP information group acquired (input) by the AP / STA information group acquisition unit 32. For example, the AP / STA control unit 34 determines the AP 2 having the largest downlink throughput based on the throughput (up / down) for each AP 2 calculated based on the AP information group for each predetermined period. An instruction to control AP2 to be transmitted by the determined STA3 is transmitted to the AP / STA control unit 12 of the AP control unit 10. In addition, the AP / STA control unit 34 may determine, based on the AP information group, the AP 2 in which the number of connections of the STA 3 is smaller than a predetermined threshold, or determine the AP 2 whose radio wave quality is higher than a predetermined threshold. Is also good.

  If the AP / STA control unit 34 determines that there is no other AP2 that is more effective than the AP2 via the STA3 determined by the low-quality STA determination unit 33, the AP / STA control unit 34 may determine not to change the AP2. Good. In this case, the AP / STA control unit 34 does not transmit an instruction regarding control to the AP / STA control unit 12 of the AP control unit 10, and ends the processing.

  Subsequently, the processing (high-density wireless communication control method) executed by the high-density wireless communication control system 1 according to the present embodiment will be described using the flowchart shown in FIG.

  First, the STA 3 periodically transmits the STA information to the AP / STA information processing unit 11 of the AP control unit 10 via the AP 2 (Step S1). Also, the AP information is periodically transmitted to the AP / STA information processing unit 11 of the AP control unit 10 by the AP 2 (Step S2). Next, the AP information transmitted in S2 and the STA information transmitted in S1 are stored in the AP / STA information processing section 31 of the information processing section 30 by the AP / STA information processing section 11 of the AP control section 10. It is transmitted to the unit 20 and stored in the information storage unit 20 (step S3). Next, the AP / STA information group acquisition unit 32 of the information processing unit 30 acquires the AP information group and the STA information group accumulated in the information accumulation unit 20 in S3 (Step S4). Next, based on the AP information group and the STA information group acquired in S4, the low-quality STA determination unit 33 of the information processing unit 30 determines STA3 performing communication of a predetermined communication quality or less, and The 30 AP / STA control unit 34 determines to control the change of the AP 2 via the determined STA 3 (step S5). Next, the AP / STA control unit 34 of the information processing unit 30 transmits an instruction regarding the control of the change of the AP2 determined in S5 to the AP / STA control unit 12 of the AP control unit 10 (Step S6). Next, the AP / STA control unit 12 of the AP control unit 10 instructs the STA 3 to control the STA 3 via the AP 2 based on the instruction regarding the control of the change of the AP 2 received in S6 (step S7), and / or Alternatively, control is instructed to AP2 (step S8).

  Note that the order of S1 and S2 may be reversed, or one of the processes may be executed after the other. The order of S7 and S8 may be reversed. Further, S7 and S8 may be performed on a plurality of STAs 3 or a plurality of APs 2, respectively.

  Next, the operation and effect of the high-density wireless communication control system 1 configured as in the present embodiment will be described.

  According to the high-density wireless communication control system 1 of the present embodiment, an AP information group that is AP information related to instantaneous (instantaneous, measured timing) communication quality of the AP2 for a predetermined period (a fixed amount, a set amount) and the predetermined period The STA3 performing communication with a predetermined communication quality or less is determined based on at least one of the STA information groups, which are STA information relating to the communication quality of the STA3 (a fixed amount, a set amount) at the instant (instantaneous, measured timing). Then, the change of AP2 via the determined STA3 is controlled. Accordingly, since the STA 3 performing low-quality communication can change the AP 2 via which the STA 3 is communicating, the sticky client problem can be appropriately solved, and the load between the APs 2 can be distributed. Further, as described above, since processing is performed based on at least one of the AP information group and the STA information group, for example, instantaneous deterioration of the radio wave environment and the sticky client problem can be easily determined, and the sticky client problem can be more appropriately determined. Can solve the problem.

  Further, according to the high-density wireless communication control system 1 of the present embodiment, the STA 3 performing communication with a predetermined communication quality or lower is determined from the STAs 3 via the predetermined AP 2. Thus, for example, from among the STAs 3 under the control of the AP 2 such as near the entrance of the stadium, the STA 3 performing communication with a predetermined communication quality or less can be determined. That is, since the processing can be performed by specifying the APs 2 arranged at a high density where the sticky client problem is likely to occur, the sticky client problem can be solved more appropriately.

  According to the high-density wireless communication control system 1 of the present embodiment, the change of the AP 2 is controlled based on the AP information group. Thereby, for example, it is possible to control the STA 3 performing communication of a predetermined communication quality or lower through the AP 2 capable of performing higher quality communication than the AP 2 currently performing, and the like. The whole can perform higher quality communication.

  As described above, according to the high-density wireless communication control system 1 of the present embodiment, the instantaneous value data aggregated from the AP 2 and / or the STA 3 is stored (in the related art, the instantaneous value data is not stored, but is overwritten and stored). By analyzing the accumulated instantaneous value data for a predetermined period (a fixed amount or a unitary amount), the sticky client problem in the high-density wireless communication system 4 can be solved, and the load distribution between the APs 2 can be solved. It can be performed. That is, low-quality users in the high-density wireless communication system 4 can be rescued.

  Note that the block diagram used in the description of the above-described embodiment shows blocks in functional units. These functional blocks (components) are realized by an arbitrary combination of at least one of hardware and software. In addition, a method of implementing each functional block is not particularly limited. That is, each functional block may be realized using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated from each other). , Wired, wireless, etc.), and may be implemented using these multiple devices. The functional block may be realized by combining one device or the plurality of devices with software.

  Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, deemed, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, but not limited to these I can't. For example, a functional block (configuration unit) that causes transmission to function is called a transmitting unit (transmitting unit) or a transmitter (transmitter). In any case, as described above, the realization method is not particularly limited.

  For example, the high-density wireless communication control system 1 and the like according to an embodiment of the present disclosure may function as a computer that performs processing of the high-density wireless communication control method of the present disclosure. FIG. 5 is a diagram illustrating an example of a hardware configuration of the high-density wireless communication control system 1 according to an embodiment of the present disclosure. The above-described high-density wireless communication control system 1 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. .

  In the following description, the term “apparatus” can be read as a circuit, a device, a unit, or the like. The hardware configuration of the high-density wireless communication control system 1 may be configured to include one or more of the devices illustrated in the drawing, or may be configured to exclude some of the devices.

  Each function in the high-density wireless communication control system 1 controls the communication by the communication device 1004 by reading predetermined software (program) on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs an operation. Or by controlling at least one of data reading and writing in the memory 1002 and the storage 1003.

  The processor 1001 controls the entire computer by operating an operating system, for example. The processor 1001 may be configured by a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. For example, the AP control unit 10 and the information processing unit 30 described above may be realized by the processor 1001.

  In addition, the processor 1001 reads a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operation described in the above embodiment is used. For example, the AP control unit 10 and the information processing unit 30 may be realized by a control program stored in the memory 1002 and operated by the processor 1001, and other functional blocks may be similarly realized. Although it has been described that the various processes described above are executed by one processor 1001, the processes may be executed simultaneously or sequentially by two or more processors 1001. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunication line.

  The memory 1002 is a computer-readable recording medium, and includes, for example, at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory). May be done. The memory 1002 may be called a register, a cache, a main memory (main storage device), or the like. The memory 1002 can store a program (program code), a software module, and the like that can be executed to execute the wireless communication method according to an embodiment of the present disclosure.

  The storage 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray). (Registered trademark) disk, a smart card, a flash memory (for example, a card, a stick, a key drive), a floppy (registered trademark) disk, and a magnetic strip. The storage 1003 may be called an auxiliary storage device. The above-described storage medium may be, for example, a database including at least one of the memory 1002 and the storage 1003, a server, or another appropriate medium.

  The communication device 1004 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like. The communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, for example, in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). May be configured. For example, the AP control unit 10 and the information processing unit 30 described above may be realized by the communication device 1004.

  The input device 1005 is an input device that receives an external input (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like). The output device 1006 is an output device that performs output to the outside (for example, a display, a speaker, an LED lamp, and the like). Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

  Each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using a different bus for each device.

  The high-density wireless communication control system 1 includes a hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include hardware, and some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

  The notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using another method.

  Each aspect / embodiment described in the present disclosure is applicable to LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system). system), FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark) )), Systems utilizing IEEE 802.16 (WiMAX®), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems, and extensions based thereon. It may be applied to at least one of the next generation systems. Further, a plurality of systems may be combined (for example, a combination of at least one of LTE and LTE-A with 5G) and applied.

  The processing procedure, sequence, flowchart, and the like of each aspect / embodiment described in the present disclosure may be rearranged as long as there is no inconsistency. For example, for the methods described in this disclosure, elements of various steps are presented in an exemplary order, and are not limited to the specific order presented.

  Information and the like can be output from an upper layer (or lower layer) to a lower layer (or upper layer). Input and output may be performed via a plurality of network nodes.

  The input and output information and the like may be stored in a specific place (for example, a memory) or may be managed using a management table. Information that is input and output can be overwritten, updated, or added. The output information or the like may be deleted. The input information or the like may be transmitted to another device.

  The determination may be made based on a value represented by 1 bit (0 or 1), a Boolean value (Boolean: true or false), or a comparison of numerical values (for example, a predetermined value). Value).

  Each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be switched and used with execution. Further, the notification of the predetermined information (for example, the notification of “X”) is not limited to being explicitly performed, and is performed implicitly (for example, not performing the notification of the predetermined information). Is also good.

  While the present disclosure has been described in detail, it will be apparent to one skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modified and changed aspects without departing from the spirit and scope of the present disclosure defined by the description of the claims. Therefore, the description of the present disclosure is intended for illustrative purposes, and has no restrictive meaning to the present disclosure.

  Software, regardless of whether it is called software, firmware, middleware, microcode, a hardware description language, or any other name, instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules , Applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.

  In addition, software, instructions, information, and the like may be transmitted and received via a transmission medium. For example, if the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), the website, When transmitted from a server or other remote source, at least one of these wired and / or wireless technologies is included within the definition of a transmission medium.

  The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., that can be referred to throughout the above description are not limited to voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical or photons, or any of these. May be represented by a combination of

  Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meaning. For example, at least one of the channel and the symbol may be a signal (signaling). Also, the signal may be a message. Further, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, or the like.

  The terms "system" and "network" as used in this disclosure are used interchangeably.

  Further, the information, parameters, and the like described in the present disclosure may be expressed using an absolute value, may be expressed using a relative value from a predetermined value, or may be expressed using another corresponding information. May be represented. For example, the radio resource may be indicated by an index.

  The names used for the parameters described above are not limiting in any way. Further, equations and the like using these parameters may differ from those explicitly disclosed in the present disclosure. Since the various channels (eg, PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, the various names assigned to these various channels and information elements may be limited in any way. is not.

  In the present disclosure, terms such as “Mobile Station (MS)”, “user terminal”, “User Equipment (UE)”, “terminal” and the like may be used interchangeably. .

  The terms "determining" and "determining" as used in the present disclosure may encompass a wide variety of operations. “Judgment” and “decision” are, for example, judgment (judging), calculation (computing), processing (processing), deriving (investigating), looking up (searching, inquiry). (E.g., searching in a table, database, or another data structure), ascertaining what may be considered "determined", "determined", and the like. Also, “determining” and “determining” refer to receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), access (Accessing) (for example, accessing data in the memory) may be regarded as “determined” or “determined”. In addition, “judgment” and “decision” means that resolving, selecting, selecting, establishing, establishing, comparing, etc. are regarded as “judgment” and “determined”. May be included. In other words, “judgment” and “decision” may include deeming any operation as “judgment” and “determined”. “Judgment (determination)” may be read as “assuming”, “expecting”, “considering”, or the like.

  The terms “connected,” “coupled,” or any variation thereof, mean any direct or indirect connection or coupling between two or more elements that It may include the presence of one or more intermediate elements between the two elements "connected" or "coupled." The coupling or connection between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”. As used in this disclosure, two elements may be implemented using at least one of one or more wires, cables, and printed electrical connections, and as some non-limiting and non-exhaustive examples, in the radio frequency domain. , Can be considered "connected" or "coupled" to each other using electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.

  Reference to “based on” as used in the present disclosure does not mean “based solely on” unless otherwise indicated. In other words, the phrase "based on" means both "based only on" and "based at least on."

  Where the terms “include”, “including” and variations thereof are used in the present disclosure, these terms are as inclusive as the term “comprising” Is intended. Further, the term "or" as used in the present disclosure is not intended to be an exclusive or.

  In the present disclosure, where articles are added by translation, such as a, an, and the in English, the present disclosure may include that the nouns following these articles are plural.

  In the present disclosure, the term “A and B are different” may mean “A and B are different from each other”. The term may mean that “A and B are different from C”. Terms such as "separate", "coupled" and the like may be interpreted similarly to "different".

  REFERENCE SIGNS LIST 1 high-density wireless communication control system, 2 AP (Access Point), 3 STA (Station), 4 wireless communication system, 10 AP control unit, 11 AP / STA information processing unit, 12 AP / STA Control unit, 20: information storage unit, 30: information processing unit, 31: AP / STA information processing unit, 32: AP / STA information group acquisition unit, 33: low quality STA determination unit, 34: AP / STA control unit.

Claims (3)

A wireless communication system including a plurality of access points and a terminal, a wireless communication control system that controls a wireless communication system in which the terminal performs wireless communication through one of the plurality of access points,
An acquisition unit configured to acquire instantaneous information regarding an instantaneous communication quality of at least one of an access point and a terminal;
Based on the instantaneous information of a predetermined period obtained by the obtaining unit, a determining unit that determines a terminal performing communication of a predetermined communication quality or less,
A control unit that controls the change of the access point through the terminal determined by the determination unit,
A wireless communication control system comprising: The determining unit, from among terminals via a predetermined access point, determines a terminal that is performing communication of a predetermined communication quality or less,
The wireless communication control system according to claim 1. Instantaneous information is information on at least the instantaneous communication quality of the access point,
The control unit is configured to control a change of an access point based on instantaneous information of a predetermined period acquired by the acquisition unit.
The wireless communication control system according to claim 1.

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