WO2013183953A1 - Terminal et procédé permettant de commander un accès à des points d'accès (ap) d'un terminal dans un réseau local sans fil wlan - Google Patents

Terminal et procédé permettant de commander un accès à des points d'accès (ap) d'un terminal dans un réseau local sans fil wlan Download PDF

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Publication number
WO2013183953A1
WO2013183953A1 PCT/KR2013/005012 KR2013005012W WO2013183953A1 WO 2013183953 A1 WO2013183953 A1 WO 2013183953A1 KR 2013005012 W KR2013005012 W KR 2013005012W WO 2013183953 A1 WO2013183953 A1 WO 2013183953A1
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WO
WIPO (PCT)
Prior art keywords
terminal
terminals
access terminals
signal
access
Prior art date
Application number
PCT/KR2013/005012
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English (en)
Korean (ko)
Inventor
이창우
이권수
신성호
전민규
이기원
Original Assignee
주식회사 모임스톤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 주식회사 모임스톤 filed Critical 주식회사 모임스톤
Publication of WO2013183953A1 publication Critical patent/WO2013183953A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • 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]

Definitions

  • the present invention relates to a terminal and an AP access control method of a terminal. More particularly, the present invention relates to a terminal and an AP access control method of a terminal for effectively distributing an AP connection among a plurality of APs in a WLAN network environment. .
  • 'Wireless LAN' provides communication services such as the Internet to wireless terminals (for example, smartphones, PDAs, laptops, etc.) located within a certain distance from a place where an access point (AP) is installed. .
  • wireless terminals for example, smartphones, PDAs, laptops, etc.
  • AP access point
  • the radio range was only about 10m, but in the 2000s, the radio range was greatly expanded from 50m to hundreds of meters.
  • the transmission speed of the 'Wireless LAN' has also improved, enabling the transmission and reception of large amounts of multimedia. This allows wireless LANs to be used to provide high-speed data services to subscribers located in specific buildings, such as schools, airports, and hotels.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a terminal and a method for accessing an AP, which can effectively distribute the access of the terminal to the AP according to the number of terminals connected to each AP. have.
  • the terminal determines the signal strength for each AP using an antenna for detecting a WLAN signal, the signal detected from the antenna, and connects the terminal to the AP having the largest signal strength.
  • a controller for querying all terminals on a WLAN network in a predefined packet format through the accessed AP, receiving a response from all terminals, and determining the number of access terminals for each AP on the WLAN network. can do.
  • the controller determines whether the connected AP is the AP having the smallest number of access terminals, and if the connected AP is the AP with the smallest number of access terminals, maintains the current access of the terminal, and accesses the connected AP. If the number of access terminals is not the smallest AP, the terminal may be changed to the AP with the smallest number of access terminals.
  • the controller may connect the terminal to an AP having the largest signal strength among the APs having the smallest number of access terminals.
  • the controller determines whether the signal strength of the connected AP is less than a preset threshold, and if the signal strength of the connected AP is less than the threshold, searches for a new AP and predefined through the connected AP. Query all the terminals on the WLAN network in the packet format, and receive a response from all the terminals to determine the number of access terminals of the found new AP, and the number of access terminals among the found new APs is the most. Fewer APs can connect.
  • the controller may connect the terminal to an AP having the highest signal strength among the APs having the smallest number of access terminals.
  • the antenna may be a dual band antenna capable of sensing signals of a first frequency and a second frequency, the first frequency may be 2.4 GHz, and the second frequency may be 5 GHz.
  • the terminal may further include a diplexer for separately transmitting the signal of the first frequency and the signal of the second frequency received from the antenna.
  • the controller may include a first signal processor that processes the first frequency transmitted from the diplexer, and a second signal processor that processes the second frequency transmitted by the diplexer.
  • the AP access control method of a terminal in a wireless LAN network environment detecting the WLAN signal using the antenna of the terminal, and the signal for each AP using the detected signal Determining the strength of the terminal; connecting the terminal to an AP having the largest signal strength; querying all terminals on the WLAN network in a predefined packet format through the connected AP; Receiving a response from the terminal may include determining the number of access terminals for each AP on the WLAN network.
  • the AP access control method of the terminal determining whether the connected AP is the AP with the smallest number of access terminals, and the connected AP has the smallest number of access terminals In the case of an AP, maintaining the current connection of the terminal, and if the connected AP is not the AP with the smallest number of access terminals, changing and accessing the AP with the smallest number of access terminals of the terminal. It may include.
  • the terminal when there are a plurality of APs having the smallest number of access terminals, the terminal has the largest signal strength among the APs having the smallest number of access terminals. Connecting to the AP.
  • the AP access control method of the terminal may further include searching for a new AP.
  • the AP access control method of the terminal may further include determining the number of access terminals of the searched new AP and connecting the terminal to an AP having the smallest number of access terminals among the searched new APs.
  • the AP access control method of the terminal when there are a plurality of APs with the smallest number of access terminals among the searched new AP, the terminal signal of the AP with the smallest number of access terminals
  • the method may further include connecting to the AP having the greatest strength.
  • the antenna is a dual band antenna capable of detecting a signal of the first frequency and the second frequency, a wireless LAN signal using the antenna of the terminal.
  • the detecting may further include detecting a signal of the first frequency or the second frequency by using the dual band antenna.
  • the first frequency may be 2.4 GHz
  • the second frequency may be 5 GHz.
  • the terminal can be effectively connected to the AP so as to distribute the traffic in the WLAN network environment.
  • the access terminal can maintain optimal call quality even when handover by accessing the least AP.
  • FIG. 1 is a schematic structural diagram of a terminal according to a first embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a terminal according to a second embodiment of the present invention.
  • FIG. 3 is a conceptual diagram illustrating an operation when a new connection is performed in an AP control method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart for describing an operation during new connection of FIG. 3.
  • FIG. 5 is a conceptual diagram illustrating an operation during handover in an AP control method according to an embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating an operation during handover of FIG. 5.
  • FIG. 7 is a conceptual diagram illustrating a method for controlling access of a terminal according to an embodiment of the present invention when four APs are present.
  • FIG. 1 is a schematic structural diagram of a terminal according to a first embodiment of the present invention.
  • the terminal 100 includes an antenna 100, a diplexer 120, a power amplifier (PA) 130, a controller 140, and an EEPROM ( 160).
  • PA power amplifier
  • EEPROM EEPROM
  • the antenna 100 serves to detect a WLAN signal, and for example, may receive a frequency signal of a 2.4 GHz band, which is currently widely used.
  • the diplexer 120 receives a WLAN signal received from the antenna 100 and separates and transmits the WLAN signal according to different frequencies. That is, data is extracted for each data signal or voice signal from the 2.4 GHz band WLAN signal received by the antenna 110 and transmitted to the controller 140 to be described later.
  • the power amplifier (PA) 130 amplifies a signal processed by the controller 140 to be described later, transmits the signal to the antenna 110 through the diplexer 120, and the signal may be transmitted to another device. do.
  • the controller 140 plays a role of overall control of the terminal 100 according to the present invention.
  • the controller 140 includes a signal processor 150 that receives and processes a signal processed by the diplexer 120, and the controller 140 controls the overall operation of the terminal 100 based on the signal.
  • the controller 140 may operate as a general purpose input / output (GPIO) as an interface of a secure digital input / output (SDIO) as needed. The detailed operation of the controller 140 will be described in detail later.
  • GPIO general purpose input / output
  • SDIO secure digital input / output
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • EEPROM 160 is illustrated as an example of a storage device in the present specification, any type of storage device that is currently used or may be developed later may be applied as long as it can serve as a storage device.
  • FIG. 2 is a schematic structural diagram of a terminal according to a second embodiment of the present invention.
  • the terminal 200 according to the second embodiment of the present invention has a structure different from that of the terminal 100 according to the first embodiment, and adopts a dual band antenna 210 capable of receiving frequency signals of two bands. It is different.
  • the terminal 200 includes an antenna 210, diplexers 221, 223, and 225, power amplifiers 224, 227, and low noise.
  • the amplifier includes a low noise amplifier 229, a controller 230, and an EEPROM 260.
  • the antenna 210 may be configured as a dual band antenna capable of receiving frequency signals in two bands, a first frequency and a second frequency.
  • the first frequency may be 2.4 GHz and the second frequency may be 5 GHz.
  • the frequency signals of the two bands may be simultaneously received through the antenna 210 or may be configured to receive only the frequencies of the required bands.
  • the received frequency is separated by the diplexer 221 according to the frequency band, the signal of the first frequency band is transmitted to the diplexer 223, the signal of the second frequency band is the diplexer 225 Is delivered to.
  • the subsequent operation is similar to that described previously.
  • a low noise amplifier 229 may be further configured to obtain more accurate data.
  • the controller 230 includes a first signal processor 240 for receiving and processing a signal of a first frequency band, and a second signal processor 250 for receiving and processing a signal of a second frequency band.
  • the terminal 200 likewise has an EEPROM 260 as a storage device.
  • FIG. 3 is a conceptual diagram illustrating an operation during a new connection of an AP control method according to an embodiment of the present invention
  • FIG. 4 is a flowchart illustrating an operation during a new connection of FIG. 3.
  • the terminal according to the present invention determines the number of terminals connected to each AP, and compares only the signal strength. It is characterized by improving the data transmission quality by connecting to the connected AP and efficiently distributing the terminal to each AP for connection.
  • the AP 10 and the AP 20 are connected to a wired network (for example, a LAN), the terminal 10 is connected to the AP 10, and the terminal RL is connected to the AP 20. (7) is connected. At this time, when the new terminal 5 enters the network environment, the terminal 5 scans the neighboring AP (S610).
  • a wired network for example, a LAN
  • the terminal 10 is connected to the AP 10
  • the terminal RL is connected to the AP 20.
  • (7) is connected.
  • the terminal 5 scans the neighboring AP (S610).
  • the terminal 5 determines the signal strength of each AP through the scan (S620), and accesses the AP having the largest signal strength (S630). In FIG. 3, it can be seen that the terminal 5 is connected to the AP 10 because the signal strength of the AP 10 is greater.
  • the terminal 5 is previously defined as a terminal 7 connected to the AP 20 through a wired network to which the AP 10 is connected as well as a terminal connected to the AP 10 through the connected AP 10.
  • the query is made in the packet format (S640).
  • the predefined packet format may be variously set, but may have a structure as shown in the following table.
  • 'Type' means a packet type, and specifically, whether a query or a reply is performed.
  • SSID means a service set identifier (ID). Specifically, “SSID” means a unique identifier present in the header of all packets transmitted through the WLAN.
  • the WLAN client may include a base service set (BSS). Used to delimit). In simple terms, this refers to a connection ID (identifier) between a wireless terminal and an AP used by a service provider to distinguish different wireless cells in a wireless LAN.
  • BSS base service set
  • BSSID means a 48-bit identifier or network ID for identifying a basic service area (BSS) in 802.11, a wireless LAN standard.
  • MAC Address literally means MAC address
  • IP Address also means IP address
  • step S640 When the query is made in the packet format defined as described above in step S640, a response is received from a terminal connected to all APs on the network (S650).
  • the terminal 5 analyzes the response packet to determine the number of access terminals for each AP (S660).
  • the terminal 5 determines whether the number of access terminals of the currently accessed AP, that is, the AP 10, is the smallest (S670).
  • the access terminal is changed to the AP with the smallest number of access terminals (S680).
  • the AP when there are a plurality of APs having the smallest number of access terminals, the AP may be connected to the AP having the largest signal strength.
  • the terminal 5 can increase the quality of data communication by connecting to the AP having the smallest number of pre-connected terminals among the plurality of APs on the network.
  • FIG. 5 is a conceptual diagram illustrating an operation during handover in an AP control method according to an embodiment of the present invention
  • FIG. 6 is a flowchart illustrating an operation during handover of FIG. 5.
  • Handover refers to a new AP whose signal strength is greater than or equal to a certain value without interruption of data transmission while the signal of the existing AP is weakened as the terminal user moves while the terminal is connected to a specific AP. I say that.
  • the AP access method in the handover operation will be described in detail with reference to FIGS. 5 and 6.
  • the terminal 2 is connected to the AP 30, and the terminal 4 is connected to the AP 40.
  • the terminal 6 and the terminal 8 are connected to the AP 50.
  • the terminal 2 continues to sense the strength of the signal of the currently connected AP at a predetermined period (S710).
  • the terminal 20 queries the currently connected AP, that is, the terminal on the network through the AP 30 using a predefined packet format (S740).
  • the predefined packet format is as described above.
  • the terminal 2 receives a response from the terminals connected to all APs (S750), and determines the number of access terminals of the new AP found in step S730 (S760).
  • the terminal 2 is connected to the AP 40. You can see that the handover is completed while connecting.
  • FIG. 7 is a conceptual diagram illustrating a method for controlling access of a terminal according to an embodiment of the present invention when four APs are present.
  • a terminal 5a is connected to the AP 60, and two terminals 5b are connected to the AP 70. , 5c are connected, the terminal 5d is connected to the AP 80, and two terminals 5e and 5f are connected to the AP 90.
  • the neighboring AP is scanned, and the AP 70 is connected to the nearest AP 70.
  • the query to all terminals on the network in a predefined format and receive a response.
  • the number of access terminals for each AP is determined, and it is confirmed that there is one access terminal with the smallest AP 1 and AP 3.
  • the terminal 9 is connected to the AP 60 because the distance between the two APs is closer and the AP having the greater signal strength is the AP 60.
  • the access terminal induces access to the least AP among a plurality of APs on a network in the above manner, thereby distributing traffic to improve data transmission quality such as call quality. It can improve and distribute the network more effectively.
  • the present invention can be used in the field of wireless communication.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un terminal et un procédé permettant de commander un accès à des points d'accès (AP) d'un terminal. A cette fin, le terminal selon un mode de réalisation de la présente invention utilise une antenne pour détecter un signal WLAN et le signal détecté par l'antenne pour déterminer la force de chaque AP, permet au terminal d'accéder à l'AP présentant le signal le plus fort, soumet une requête à tous les terminaux sur un réseau WLAN dans un format de paquet prédéfini via l'AP faisant l'objet de l'accès, reçoit une réponse de tous les terminaux afin de déterminer le nombre de terminaux accédant à chaque AP sur le réseau WLAN, et permet au terminal d'accéder à l'AP présentant le plus petit nombre de terminaux faisant l'objet d'un accès. Le procédé permettant de commander un accès à des AP du terminal, selon un mode de réalisation de la présente invention, permet de déterminer également le nombre de terminaux qui accèdent à chaque AP sur un réseau et de connecter le terminal à l'AP présentant le plus petit nombre de terminaux faisant l'objet d'un accès, de la même manière.
PCT/KR2013/005012 2012-06-07 2013-06-07 Terminal et procédé permettant de commander un accès à des points d'accès (ap) d'un terminal dans un réseau local sans fil wlan WO2013183953A1 (fr)

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KR1020120061000A KR101382302B1 (ko) 2012-06-07 2012-06-07 단말기 및 무선랜에서의 단말기의 ａｐ 접속 제어 방법
KR10-2012-0061000 2012-06-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018164466A1 (fr) * 2017-03-07 2018-09-13 삼성전자 주식회사 Procédé et dispositif électronique pour établir une communication sans fil au moyen d'une liste de canaux

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102201616B1 (ko) * 2014-02-23 2021-01-12 삼성전자주식회사 전자 장치 간의 장치 검색 방법
KR102207866B1 (ko) * 2014-04-01 2021-01-26 삼성전자주식회사 통신 서비스를 제공하기 위한 전자 장치 및 방법
US9699732B2 (en) 2014-04-29 2017-07-04 Samsung Electronics Co., Ltd. Apparatus and method for controlling communication module
KR101649751B1 (ko) * 2014-12-09 2016-08-22 주식회사 에세텔 엑세스 포인트와 다중 무선단말간의 대역폭 분산을 통해 최적의 무선환경서비스를 제공하는 방법
KR101927117B1 (ko) * 2016-06-21 2018-12-12 주식회사 유니콤넷 무선 억세스 포인트 장치로 식별자 히든 요청신호를 제공하는 통합 광통신 단말장치 및 그 것의 동작 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002185458A (ja) * 2000-12-13 2002-06-28 Matsushita Electric Ind Co Ltd 無線ｌａｎシステムおよび端末
JP2007174543A (ja) * 2005-12-26 2007-07-05 Nec Infrontia Corp 無線ｌａｎシステム及び無線ｌａｎ制御方法
KR20100130535A (ko) * 2009-06-03 2010-12-13 엘지전자 주식회사 Ａｐ 선택 정보 제공 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010062936A (ja) 2008-09-04 2010-03-18 Takenori Hirose 無線ｌａｎ通信システム
KR20120070177A (ko) * 2010-12-21 2012-06-29 주식회사 케이티 무선랜 환경에서 ａｐ 간 핸드오버 방법 및 이를 위한 이동통신 단말

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002185458A (ja) * 2000-12-13 2002-06-28 Matsushita Electric Ind Co Ltd 無線ｌａｎシステムおよび端末
JP2007174543A (ja) * 2005-12-26 2007-07-05 Nec Infrontia Corp 無線ｌａｎシステム及び無線ｌａｎ制御方法
KR20100130535A (ko) * 2009-06-03 2010-12-13 엘지전자 주식회사 Ａｐ 선택 정보 제공 방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018164466A1 (fr) * 2017-03-07 2018-09-13 삼성전자 주식회사 Procédé et dispositif électronique pour établir une communication sans fil au moyen d'une liste de canaux
US11146958B2 (en) 2017-03-07 2021-10-12 Samsung Electronics Co., Ltd. Method and electronic device for performing wireless communication by using channel list

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KR20130137412A (ko) 2013-12-17
KR101382302B1 (ko) 2014-04-07

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