KR20130119161A - Method and apparatus for connecting an wi-fi network in an optimized state - Google Patents

Method and apparatus for connecting an wi-fi network in an optimized state Download PDF

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Publication number
KR20130119161A
KR20130119161A KR1020120042102A KR20120042102A KR20130119161A KR 20130119161 A KR20130119161 A KR 20130119161A KR 1020120042102 A KR1020120042102 A KR 1020120042102A KR 20120042102 A KR20120042102 A KR 20120042102A KR 20130119161 A KR20130119161 A KR 20130119161A
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South Korea
Prior art keywords
wi
network
fi
ap
3g
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KR1020120042102A
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Korean (ko)
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김종헌
이동수
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광운대학교 산학협력단
이동수
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Priority to KR1020120042102A priority Critical patent/KR20130119161A/en
Publication of KR20130119161A publication Critical patent/KR20130119161A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

PURPOSE: An optimized Wi-Fi network access method and a device thereof can be induced to connect to a Wi-Fi network in an optimized status or be connected to 3G or 4G network. CONSTITUTION: A network band sensor (330) controls a network selector to connect 3G or 4G network when sensed Wi-Fi intensity is equal to or less than a predetermined threshold. The network band sensor transmits a ping message to a reference site. The network band sensor controls the network selector to connect a Wi-Fi network through an AP corresponding to a short delay among APs having a certain delay less than a certain time among APs corresponding to a round trip delay collected with the ping message. [Reference numerals] (310) Wi-Fi signal detection unit; (320) Network selection unit; (330) Network band detection unit; (340) Wi-Fi network connection unit; (350) Mobile communication connection unit

Description

Optimized Wi-Fi network access method and device {METHOD AND APPARATUS FOR CONNECTING AN WI-FI NETWORK IN AN OPTIMIZED STATE}

The present invention relates to a method and apparatus for accessing an optimized Wi-Fi network. More particularly, the present invention relates to an optimized Wi-Fi network to reduce the cost of data usage by a user by inducing an access to a Wi-Fi network in an optimized state. It relates to a method and apparatus for accessing a Wi-Fi network.

In general, Wi-Fi provides a service to enable high-speed Internet access through a mobile device or a notebook computer within a certain distance centered on a location where a wireless access device (AP) is installed. At this time, since Wi-Fi uses radio frequency, no telephone line or dedicated line is required, but a wireless LAN card should be installed in a mobile device or a laptop computer.

Wi-Fi has a transmission speed of 4Mbps to 11Mbps, and can transmit and receive a large amount of multimedia information.It is inexpensive even when used for a long time, and features mobility and security. Wi-Fi technology is based on KT's Nespot or Spain-based 'PONE' service, and major cities, including San Francisco, in the United States, have a Wi-Fi zone throughout the city area. Is building.

Accordingly, recently, in a terminal environment, a module supporting a network environment such as Wi-Fi as well as a network provided by a mobile carrier is mounted on a mobile communication terminal. Such a dual mode terminal is an Internet phone (VoIP). And mobile communication at the same time.

If you have a smartphone with a call function and internet access, you can set the use of the Wi-Fi network to the automatic setting even if the Wi-Fi network is in good condition. In addition, when the effective band (end-to-end band) is actually connected due to network congestion, the connection is often very slow or uncomfortable, causing user inconvenience.

In addition, the use of the Wi-Fi network selectively, even if the Wi-Fi network is available, you may be using the 3G, 4G network that is charged. Current smartphone Wi-Fi connection setup is as follows.

If the Wi-Fi connection is not available, select <Enable / Disable>. Even if a strong Wi-Fi signal is available, long round trips to access the reference site can be very inconvenient for the user. In other words, when using a Wi-Fi network in common, even if the signal strength is high, the effective bandwidth may drop if there are many users.

Nowadays, smartphones are this way, so the user will notice that the Internet isn't connected well before they can set Wi-Fi to off.

In addition, even if the signal strength is high, the number of the access point is large, the effective bandwidth is not able to use the Wi-Fi network smoothly, the user usually set to <Wi-Fi disabled> and use the smart terminal. However, even in an area where Wi-Fi networks are well established, users often encounter a problem of using a mobile communication network such as 3G or 4G network in which data charges are inadvertently charged without being aware of this fact.

Accordingly, the technical problem of the present invention is to solve such a conventional problem, and an object of the present invention is to induce the user to connect to a Wi-Fi network in an optimized state or by connecting to a mobile communication network such as 3G or 4G network, and the data burdened by the user. It is to provide an optimized Wi-Fi network access method to maintain smooth network quality while reducing the cost of use.

Another object of the present invention is to provide an apparatus for performing the optimized Wi-Fi network access method.

In order to realize the above object of the present invention, according to an embodiment of the present invention, a Wi-Fi (Wi-) is connected to an access point connected to an Internet network or an AP connected to an Internet network through a mobile communication network such as 3G or 4G. Fi) In the optimized Wi-Fi network access method for connecting, (a) detecting the Wi-Fi signal strength of the AP, (b) if the detected Wi-Fi signal strength is less than or equal to the set threshold, smart terminal Enabling 3G or 4G and connecting to 3G or 4G; and (c) if the detected Wi-Fi signal strength is checked to be greater than the threshold, access each AP based on the connected Wi-Fi list and ping the reference site. Transmitting a message; and (d) an AP having a delay time within a predetermined time period among APs corresponding to a round trip delay time collected through the ping message is present. If not, the method returns to step (b), and (e) selecting an AP corresponding to the shortest delay time among APs having a delay time within the predetermined time to connect to Wi-Fi through the selected AP. It includes.

In one embodiment, (f) after the Wi-Fi connection through the selected AP, checking whether the corresponding Wi-Fi signal strength is lower than the threshold, and (g) in step (f) the Wi-Fi signal strength is the threshold If it is checked to be down, the method may further include feeding back to step (a).

According to an embodiment of the present invention, a Wi-Fi (Wi) is connected to an access point (hereinafter referred to as an AP) connected to the Internet network or connected to the Internet network through a mobile communication network connection such as 3G or 4G. The optimized Wi-Fi network access device for connecting includes a Wi-Fi signal detector, a network selector, and a network band detector. The Wi-Fi signal detector detects the Wi-Fi signal strength of the AP. The network selector selects either a Wi-Fi network connection or a mobile communication network connection. The network band detection unit (a) if the Wi-Fi signal strength detected by the Wi-Fi signal detection unit is less than or equal to the set threshold, and controls the network selector to connect to 3G or 4G, (b) the detected Wi-Fi signal strength If greater than the threshold, each AP is connected to each other to transmit a ping message to a reference site, and (c) APs having a delay time within a certain time among the APs corresponding to the round trip delay time collected through the ping message. The network selector is controlled to access a Wi-Fi network through an AP corresponding to a short delay time.

In one embodiment, the network band detection unit may further control the network selection unit to connect to a mobile communication network such as 3G or 4G network if there is no AP having a delay time within a predetermined time.

In one embodiment, the network band detector may be configured of any one of firmware and application software for controlling the hardware recorded in the ROM. Here, the application software can be downloaded.

According to the optimized method and device for accessing the Wi-Fi network, the Wi-Fi network is set as the default, but even if the Wi-Fi network is set, the round trip for accessing an appropriate Wi-Fi network after selecting a Wi-Fi network with good Wi-Fi signal strength By adding a network band detector to measure the time, the user can connect to the Wi-Fi network that is actually available and the Wi-Fi network that does not have a valid bandwidth (i.e. round trip delay time) is not connected even though the Wi-Fi signal strength is good. It can keep the network quality smooth while reducing the cost of using data.

1 is a diagram illustrating a wireless network environment according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating an optimized Wi-Fi network access device provided in the smart terminal shown in FIG. 1.
3 is a flowchart illustrating an optimized Wi-Fi network access method according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a diagram illustrating a wireless network environment according to an embodiment of the present invention.

Referring to FIG. 1, a wireless network environment according to an embodiment of the present invention may be configured with a smart terminal 100, a plurality of access points (hereinafter referred to as “AP”) 200, and a network. .

The smart terminal 100 is connected to a variety of networks through the AP (200) installed in the workplace or the workplace according to the user's operation to use the Internet. The connection method between the AP 200 and the network depends on the network structure of the network provider that provides the wired Internet service. In general, network operators configure networks by access, metro, and core according to intervals. And the network of each section is configured in different ways.

The smart terminal 100 may be connected to a mobile communication network such as a 3G network or a 4G network and may be connected to the Internet, and may be connected to the Internet by receiving a wireless local area network (hereinafter, referred to as "WLAN") service. It can be a kind of smartphone. The WLAN is a network environment that provides a LAN service to a mobile terminal equipped with a WLAN card or a bus module using an AP corresponding to a hub of a wired LAN. The term WLAN or Wi-Fi, as used in the description below, refers to a technology based on IEEE 802.11.

When the Wi-Fi function is activated in the smart terminal 100, the smart terminal 100 may access the Internet network by accessing a Wi-Fi network to a wireless AP connected to the Internet network. Accordingly, the smart terminal 100 may not only communicate with the counterpart terminal through a mobile communication network such as a 3G network, but also communicate with the counterpart terminal through an internet network connected to the Wi-Fi network. Communication through the mobile communication network has the advantage that can be carried out regardless of the place relatively, but generally has the disadvantage of being paid. On the other hand, the communication via the internet network by the Wi-Fi network connection is generally free, but has the disadvantage of being relatively place-friendly. Therefore, when the smart terminal 100 communicates with the counterpart terminal, the mobile terminal and the internet network are suitably used in a hybrid form so that the advantages of the mobile communication network and the internet network can compensate for the disadvantages of each other. More research is needed to maximize the user's convenience.

The present invention is proposed in accordance with the necessity, and maximizes the convenience of the smart terminal user by using the mobile communication network and the internet network in a hybrid form so that the advantages of the mobile communication network and the internet network can compensate for the disadvantages of each other. An optimized Wi-Fi network access method and an optimized Wi-Fi network access device for performing the same are provided.

The service that the user connects to the Internet through the smart terminal 100 is mainly made up of an Internet portal or a content service. Servers that provide these services (hereinafter referred to as network servers) (not shown) are managed in a central data center operated by each network operator or directly managed by each company. The quality actually felt by the user depends not only on the signal strength in the wireless section but also on how smoothly the connection between the AP and the server is in the wired section.

In other words, even if the signal strength of the wireless section is good, many users are using the service, and if the traffic from the server providing the service is congested, the network having a good performance even if the signal strength is good is beneficial to the user. Becomes Therefore, in order for the user to be provided with a high quality of service, the user must know whether the allocated network band is an effective band.

In the embodiment of the present invention, if the signal strength of the AP is weak or the network band does not have a valid band based on the signal strength and network band of the AP to be connected in the smart terminal, the Internet connection is made through a mobile communication network such as 3G or 4G. If the network band does not have a valid band even though the signal strength of the AP is strong, it also induces Internet access through a mobile communication network such as 3G or 4G, and only when the signal strength of the AP is strong and the network band has a valid band. By selecting the AP to encourage access to the Internet, the network quality that the user actually feels is improved. To this end, an optimized Wi-Fi network access device according to an embodiment of the present invention will be described with reference to FIG. 2.

FIG. 2 is a block diagram illustrating an optimized Wi-Fi network access device provided in the smart terminal shown in FIG. 1.

1 and 2, the optimized Wi-Fi network access device 300 includes a Wi-Fi signal detector 310, a network selector 320, a network band detector 330, a Wi-Fi network connector 340, and a mobile device. Communication network connection unit 350 is included. The network band detection unit 330 provided in the optimized Wi-Fi network access device 300 according to the present embodiment may be configured in firmware or software and mounted on the smart terminal 100. Meanwhile, the network band detector 330 may be configured in the form of an app and may be down according to a user's manipulation.

The Wi-Fi signal detector 310 detects the Wi-Fi signal strength of the AP and provides the detected Wi-Fi signal strength data to the network band detector 330.

The network selection unit 320 activates the Wi-Fi network connection unit 340 for the Wi-Fi network connection or the mobile communication network connection unit 350 for the mobile communication network connection. If the smart terminal is a smart phone capable of accessing the 3G mobile communication (3G) network, it can be connected to the Wi-Fi network or the 3G network, and the smart terminal is a 4G mobile communication such as Long Term Evolution (LTE). If you have a smartphone that can connect to a (4G) network, you can connect to a Wi-Fi network or a 4G network.

The network band detector 330 controls the network selector 320 to connect to 3G or 4G when the Wi-Fi signal strength detected by the Wi-Fi signal detector 310 is less than or equal to a predetermined threshold. If the detected Wi-Fi signal strength is greater than the threshold, the network band detector 330 transmits a ping message to a reference site by accessing each AP. The network band detecting unit 330 accesses a Wi-Fi network through an AP corresponding to a short delay time among APs having a delay time within a predetermined time among APs corresponding to a round trip delay time collected through the ping message. The network selector 320 is controlled to perform the control.

The Wi-Fi network connection unit 340 is activated by the network selection unit 320 is connected to the Wi-Fi network.

The mobile communication network connection unit 350 is activated by the network selection unit 302 and connected to a 3G network or a 4G network.

As described above, the smart terminal measures not only the signal strength of the AP to which it is connected, but also the network band, which is the effective band of the AP to which it is connected, to induce an access to the Wi-Fi network in an optimized state based on this, or such as 3G or 4G networks. By connecting to a mobile communication network, it is possible to maintain a smooth network quality while reducing the cost of using data burdened by the user.

3 is a flowchart illustrating an optimized Wi-Fi network access method according to an embodiment of the present invention.

2 and 3, the Wi-Fi signal detection unit 310 checks whether the network connection request by the user (step S100). In this case, the network requesting connection may be a free Wi-Fi network or a 3G or 4G network with a data fee.

As the network connection is requested in step S100, the Wi-Fi signal detection unit 310 detects the Wi-Fi signal strength received through the smart terminal (step S102).

The Wi-Fi signal detecting unit 310 checks whether the Wi-Fi signal strength detected in step S102 is approximately 500 dBm or more (step S104).

If the detected Wi-Fi signal strength in step S104 is approximately 500 dBm or more, the network band detecting unit 330 obtains a Wi-Fi list (step S106).

The network band detector 330 transmits a ping message to a reference site (or a reference site) by accessing Wi-Fis corresponding to a signal strength of about 500 dBm or more based on the Wi-Fi list obtained in step S106 (step S108). ). Here, ping means sending one datagram per second and outputting one row for each response received. In other words, if the data program is sent to the host specified by the user and waits for a response, the bytes and sequence number response time returned in response to the command are displayed. do.

Subsequently, the network band detector 330 checks whether there is a Wi-Fi within a delay time of about 10 ms (step S110).

If the delay time is checked as one or more Wi-Fi within approximately 10ms, the network band detector 330 controls the network selector 320 to select the Wi-Fi AP corresponding to the shortest delay time (step S112).

The network selection unit 320 activates the Wi-Fi network connection unit 340 to connect the Wi-Fi AP selected in step S112 (step S114). As the Wi-Fi network connection unit 340 is activated, the smart terminal is connected to the Wi-Fi network through the selected Wi-Fi AP to enable operations such as Internet searching by the user.

Subsequently, the Wi-Fi signal detecting unit 310 checks whether the Wi-Fi signal strength through the connected Wi-Fi AP is lowered to about 500 dBm or less (step S116). Typically, the Wi-Fi signal strength may occur when the distance between the user of the smart terminal and the Wi-Fi AP is far.

If it is checked in step S116 that the connected Wi-Fi signal strength falls below approximately 500 dBm, it feeds back to step S102 to detect new Wi-Fi.

If it is not checked in step S116 that the connected Wi-Fi signal strength is lowered to less than approximately 500 dBm, it is checked whether or not Wi-Fi blocking by the user is requested (step S118).

If it is checked in step S118 that the Wi-Fi blocking is requested by the user, the connected Wi-Fi is blocked (step S120), and the process ends.

On the other hand, if the Wi-Fi signal strength detected in step S104 is less than or equal to approximately 500dBm or if there is no Wi-Fi with a delay time of approximately 10ms in step S110, whether it is connected to a mobile communication network such as 3G or 4G network. Is checked (step S122).

If a connection is not requested to a mobile communication network such as a 3G or 4G network in step S122, it is fed back to step S102 and connected to the mobile communication network if requested to connect to the mobile communication network (step S124).

Then, it is checked whether there is a mobile communication network blocking request such as 3G or 4G network (step S126).

If it is checked that there is a mobile communication network blocking request such as 3G or 4G network, the mobile communication network such as connected 3G or 4G network is blocked (step S128).

Although described above with reference to the embodiments, those skilled in the art can be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand.

As described above, according to the present invention, although the Wi-Fi network is set as a default, even after the Wi-Fi network is set, the round trip time for accessing an appropriate Wi-Fi network after the Wi-Fi network having good Wi-Fi signal strength is selected Network bandwidth detection unit (firmware or software) is added to measure the available Wi-Fi network, and even if Wi-Fi signal strength is good, Wi-Fi network that does not have available bandwidth (ie round trip delay time) is not connected. By doing so, it is possible to maintain a smooth network quality while reducing the cost of using data burdened by the user.

100: smart terminal 200: access point (AP)
300: Wi-Fi network access unit 310: Wi-Fi signal detection unit
320: network selection unit 330: network band detection unit
340: Wi-Fi network connection 350: Mobile communication network connection

Claims (6)

  1. In an optimized Wi-Fi network access method that connects to the Internet network through a mobile communication network such as 3G or 4G, or makes a Wi-Fi connection to an Access Point (AP) connected to the Internet network,
    (a) detecting the Wi-Fi signal strength of the AP;
    (b) if the detected Wi-Fi signal strength is less than or equal to the set threshold, setting the smart terminal to use 3G or 4G and connecting to 3G or 4G;
    (c) if the detected Wi-Fi signal strength is checked to be larger than the threshold, connecting each of the APs based on the connected Wi-Fi list and transmitting a ping message to the reference site;
    (d) if it is checked that there is no AP having a delay time within a certain time among the APs corresponding to the round trip delay time collected through the ping message, feeding back to step (b); And
    (e) selecting an AP corresponding to the shortest delay time among APs having a delay time within the predetermined time period and connecting to the Wi-Fi network through the selected AP.
  2. The method of claim 1,
    (f) checking whether the corresponding Wi-Fi signal strength drops below the threshold after connecting to Wi-Fi through the selected AP; And
    (g) if it is checked in step (f) that the Wi-Fi signal strength is below the threshold, the method further comprises the step of feeding back to step (a).
  3. In an optimized Wi-Fi network access device that accesses the Internet network through a mobile communication network such as 3G or 4G, or makes a Wi-Fi connection to an access point (AP) connected to the Internet network,
    Wi-Fi signal detection unit for detecting the Wi-Fi signal strength of the AP;
    A network selecting unit which selects one of a Wi-Fi network connection and a mobile communication network connection; And
    (a) if the Wi-Fi signal strength detected by the Wi-Fi signal detection unit is less than or equal to a preset threshold, controlling the network selector to connect to 3G or 4G, and (b) if the detected Wi-Fi signal intensity is greater than the threshold, Access each AP and send a ping message to the reference site, and (c) a short delay time among APs having a delay time within a certain time among the APs corresponding to the round trip delay time collected through the ping message. An optimized Wi-Fi network access device comprising a network band detector for controlling the network selector to access a Wi-Fi network through a corresponding AP.
  4. The optimized Wi-Fi network of claim 3, wherein the network band detector further controls the network selector to connect to a mobile communication network such as 3G or 4G network when there is no AP having a delay time within a predetermined time period. Connecting device.
  5. The apparatus of claim 3, wherein the network band detector comprises at least one of firmware and application software for controlling hardware recorded in a ROM.
  6. The optimized Wi-Fi network access device according to claim 5, wherein the application software is downloaded.
KR1020120042102A 2012-04-23 2012-04-23 Method and apparatus for connecting an wi-fi network in an optimized state KR20130119161A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018207990A1 (en) * 2017-05-08 2018-11-15 넥서스텍(주) Wi-fi network access device
US10382986B2 (en) 2017-03-17 2019-08-13 At&T Mobility Ii Llc Facilitating mobile device self-optimizing technology selection thresholds in a wireless communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10382986B2 (en) 2017-03-17 2019-08-13 At&T Mobility Ii Llc Facilitating mobile device self-optimizing technology selection thresholds in a wireless communication system
WO2018207990A1 (en) * 2017-05-08 2018-11-15 넥서스텍(주) Wi-fi network access device

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