US20040082327A1 - Mobile terminal apparatus for automatically generating/changing wireless local area network (WLAN) access information and method for controlling the same - Google Patents
Mobile terminal apparatus for automatically generating/changing wireless local area network (WLAN) access information and method for controlling the same Download PDFInfo
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- US20040082327A1 US20040082327A1 US10/439,653 US43965303A US2004082327A1 US 20040082327 A1 US20040082327 A1 US 20040082327A1 US 43965303 A US43965303 A US 43965303A US 2004082327 A1 US2004082327 A1 US 2004082327A1
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- mobile terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/955—Retrieval from the web using information identifiers, e.g. uniform resource locators [URL]
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
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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
- H04W88/08—Access point devices
Definitions
- the present invention relates to a mobile terminal apparatus for automatically generating/changing WLAN (Wireless Local Area Network) access information and a method for controlling the same, and more particularly to a mobile terminal apparatus for automatically generating/changing WLAN access information of a user's mobile terminal when the user of a WLAN moves from one place to another to provide the user with maximum mobility, resulting in greater convenience for the user, and a method for the controlling the same.
- WLAN Wireless Local Area Network
- WLAN Wireless Local Area Network
- IT Internet Technology
- FIG. 1 is a conceptual view illustrating a conventional WLAN architecture.
- the conventional WLAN architecture includes an AP (Access Point) 20 hard-wired to Internet 10 .
- Mobile terminal devices 30 such as a notebook computer 30 a or a PDA 30 b can wirelessly communicate with the AP 20 .
- the AP 20 connects a wired LAN with a wireless LAN to enable any user of the mobile terminal devices 30 to freely surf the Internet 10 , and operates over a distance in the range of 20 ⁇ 30 m in an internal environment, or over a distance in the range of 100 ⁇ 150 m in an external environment.
- the AP 20 can be wirelessly connected either to mobile terminal devices 30 for use in buildings where the devices 30 are located within a radius of about 20 ⁇ 30 m from the installation area of AP 20 , or to other mobile terminal devices 30 for use outside where the devices 30 are located within a radius of about 100 ⁇ 150 m from the installation area of AP 20 .
- a WLAN user To move from one location to another, a WLAN user must change WLAN access information of the mobile terminal devices 30 to be classified according to WLAN service request areas and their APs; however, this may seriously limit expansion of a serviceable area of the WLAN for guaranteeing the user a free access thereto.
- WLAN users have manually pre-registered WLAN access information (for example, AP setup information related to the WLAN and TCP/IP-related information) of prescribed areas they frequently use in their mobile terminal devices, such that they manually select their desired WLAN access information from among the pre-registered WLAN access information whenever they move from one place to another place in a WLAN service area.
- WLAN access information for example, AP setup information related to the WLAN and TCP/IP-related information
- FIG. 2 is a flow chart illustrating a conventional WLAN access information setup procedure.
- a user registers prescribed regional information of a plurality of areas he or she wishes in his or her mobile terminal at step S 10 .
- the regional information registered in the user's mobile terminal includes AP setup information for use in regional APs and network setup information of any mobile terminal adapted to access the APs.
- a plurality of WLAN access information pre-registered at step S 10 are displayed on a display of his or her mobile terminal at step S 30 .
- the user's mobile terminal changes its current WLAN access information to another access information on the basis of the selected WLAN access information at step S 50 .
- the aforesaid conventional WLAN access information setup procedure shown in FIG. 2 has an advantage in that it reduces the user's inconvenience of manually entering appropriate regional WLAN access information in his or her mobile terminal whenever the user moves from one place to another place, other disadvantages still remain, that is, the user must pre-register a plurality of WLAN access information in his or her mobile terminal and must manually change prior WLAN access information to another WLAN access information for his or her desired area whenever he or she moves from one area to another area. Moreover, in the event that the user moves to another place not pre-registered in the mobile terminal, it is necessary for the user to manually enter new WLAN access information in the mobile terminal.
- a mobile terminal apparatus including: an access information management database (DB) for storing pre-registered WLAN (Wireless Local Area Network) access information of the mobile terminal apparatus; an access information manager for managing the access information management DB; an access information collector for collecting information of all WLAN APs (Access Points) being accessible at a current position of the mobile terminal apparatus; an access information analyzer for analyzing the collected information result of the access information collector, and creating a list of WLAN APs accessible at a current position of the mobile terminal apparatus on the basis of the analyzed result; a comparator for comparing the list of the WLAN APs with WLAN access information stored in the access information management DB; an access information automatic changer for automatically changing current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of the WLAN APs; and an access information generator for automatically generating new WLAN access information to be adapted to automatically change current WLAN access information
- DB access information management database
- WLAN Wireless Local Area Network
- a method for automatically generating/changing WLAN (Wireless Local Area Network) access information including the steps of: constructing an access information management database (DB) for storing WLAN (Wireless Local Area Network) access information of a mobile terminal apparatus; collecting information of all WLAN APs (Access Points) accessible at a current position of the mobile terminal apparatus on the basis of a prescribed access information collection condition; analyzing the collected information result, and creating a list of WLAN APs accessible at a current position of the mobile terminal apparatus on the basis of the analyzed result; comparing the list of the WLAN APs with WLAN access information stored in the access information management DB; automatically changing current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of the WLAN APs; automatically generating new WLAN access information when there is no WLAN access information matched with the APs contained in the list of WLAN APs in the access information management DB; and automatically changing WLAN access information of the mobile
- FIG. 1 is a conceptual view illustrating a conventional WLAN architecture
- FIG. 2 is a flow chart illustrating a conventional WLAN access information setup procedure
- FIG. 3 illustrates a block diagram of a mobile terminal device in accordance with a preferred embodiment of the present invention
- FIG. 4A illustrates an exemplary database configuration of the mobile terminal device shown in FIG. 3 in accordance with a preferred embodiment of the present invention
- FIG. 4B illustrates an exemplary storage configuration of WLAN access information in accordance with a preferred embodiment of the present invention
- FIG. 5 is a flow chart illustrating a procedure for automatically generating WLAN access information in accordance with a preferred embodiment of the present invention
- FIG. 6 is a flow chart illustrating a procedure for adding WLAN access information to current WLAN access information in accordance with a preferred embodiment of the present invention
- FIG. 7 is a flow chart illustrating a procedure for automatically changing a current WLAN access information to another WLAN access information in accordance with a preferred embodiment of the present invention.
- FIG. 8 is a flow chart illustrating a procedure for adding WLAN access information to current WLAN access information in accordance with a preferred embodiment of the present invention.
- FIG. 3 is a view illustrating a block diagram of a mobile terminal device in accordance with a preferred embodiment of the present invention.
- the mobile terminal device 100 includes an access information management database (DB) 110 , an access information manager 120 , an access information collector 130 , an access information analyzer 140 , a comparator 150 , an access information automatic changer 160 , and an access information generator 170 .
- the mobile terminal device 100 may include other features and components, such as a display, a key entry unit, etc., even though they are not shown in FIG. 3.
- the access information management DB 110 stores pre-registered WLAN access information of the mobile terminal device 100 .
- a user of the mobile terminal device 100 commands the access information management DB 110 to store prescribed WLAN access information (for example, AP setup information related to the WLAN and TCP/IP-related information) pre-registered for his or her desired area.
- prescribed WLAN access information for example, AP setup information related to the WLAN and TCP/IP-related information
- the access information manager 120 manages the access information management DB 110 upon receiving external commands. For example, the access information manager 120 transmits to the comparator 150 WLAN access information stored in the access information management DB 110 upon receiving a request signal from the comparator 150 , or receives WLAN access information newly generated from the access information generator 170 for storage in the access information management DB 110 .
- the access information collector 130 collects all the information of all the WLAN APs available at a current position of the mobile terminal device 100 .
- an operating condition of the access information collector 130 may be selectively changed/set up by either a user or a manufacturer of the mobile terminal device 100 .
- the access information collector 130 may be set up to operate at a prescribed time at which the mobile terminal device 100 is reset or starts operating, or may be set up to operate when the mobile terminal device 100 moves to another place.
- the mobile terminal device 100 analyzes in real time a value of field intensity received from its own AP.
- the mobile terminal device 100 may set up the access information collector 130 to change a current AP to another accessible AP. Therefore, the mobile terminal device 100 analyzes in real time the amount of load of the AP. If the amount of load of the AP is outside of a predetermined or prescribed reference range, it is determined that an overload in the AP has occurred. Also, the mobile terminal device 100 may set up the access information collector 130 to operate in either one or both of the above cases.
- information collected by the access information collector 130 includes among other things, a MAC (Media Access Control) address, a SSID (Service Set IDentifier), reception intensity, transfer rate, and WEP (Wired Equivalent Privacy) setup information.
- MAC Media Access Control
- SSID Service Set IDentifier
- reception intensity intensity
- transfer rate transfer rate
- WEP Wired Equivalent Privacy
- the access information analyzer 140 analyzes the information collection result of the access information collector 130 , and generates a list of WLAN APs accessible at a current position of the mobile terminal device 100 on the basis of the analyzed result. For instance, provided that WLAN APs accessible at a current position of the mobile terminal device 100 are set to AP#1, AP#2, and AP#3, the list of APs is created using a MAC-address of each AP as a key signal.
- the comparator 150 compares the list of APs transmitted from the access information analyzer 140 to the comparator 150 with WLAN access information stored in the access information management DB 110 , such that it can determine whether there is a matching AP between the list of APs and the WLAN access information.
- the access information automatic changer 160 Upon receiving the result of such comparison from the comparator 150 , the access information automatic changer 160 automatically changes WLAN access information of the mobile terminal device 100 on the basis of WLAN access information matched with any AP contained in the list of APs.
- the access information generator 170 automatically generates new WLAN access information.
- the access information generator 170 combines one wired network information among a plurality of wired network information pre-registered in the mobile terminal device 100 with information of a prescribed AP among a plurality of APs contained in the list of APs, and thereby automatically generates new WLAN access information.
- the access information generator 170 selects at least one AP having a prescribed condition, such as, for example, whether the reception field intensity of the mobile terminal device 100 as determined from information transmitted from the AP, or the amount of the AP's load, is in a prescribed reference range, from among the APs contained in the list of APs. In other words, the access information generator 170 generates new WLAN access information on the basis of the information of the selected APs.
- the access information generator 170 transmits the new WLAN access information to the comparator 150 , such that current WLAN access information of the mobile terminal device 100 is automatically changed to another WLAN access information on the basis of the new WLAN access information by the access information automatic changer 160 .
- the access information generator 170 additionally registers such automatically generated WLAN access information in the access information management DB 110 over the access information manager 120 .
- FIG. 4A is an exemplary view illustrating a database configuration of the mobile terminal device 100 shown in FIG. 3 in accordance with a preferred embodiment of the present invention.
- WLAN access information 200 stored in the access information management DB 110 includes an AP information field 210 and a network information field 220 of any terminal.
- the AP information field 210 stores setup information of any AP which is connected to the Internet by wire and provides WLAN service for mobile terminal devices located within a prescribed distance range.
- AP setup information stored in the AP information field 210 are a MAC address of each AP, a SSID (Service Set IDentifier), reception intensity, transfer rate, and WEP (Wired Equivalent Privacy) setup information, etc.
- the network information field 220 stores network information of mobile terminal device 100 corresponding to any AP stored in the AP information field 210 .
- Representative examples of such network information stored in the network information field 220 are an IP address of the mobile terminal device 100 , gateway information, a subnet mask, and DNS (Domain Name Server) information, etc.
- FIG. 4B is an exemplary view illustrating a storage configuration of WLAN access information having the database configuration shown in FIG. 4 a in accordance with a preferred embodiment of the present invention.
- an AP MAC address such as ‘00:01:02:98:8A:63’ and IP information such as ‘165.210.130.121’ are stored in the database as WLAN access information, and the AP MAC address is matched with the IP information.
- FIG. 5 is a flow chart illustrating a procedure for automatically generating WLAN access information in accordance with a preferred embodiment of the present invention. Referring to FIGS. 3 to 5 , a method for automatically generating/changing WLAN access information will hereinafter be described in more detail.
- the mobile terminal device 100 constructs access information management DB 110 for storing WLAN access information therein at step S 110 .
- a user registers prescribed information of several areas he or she wishes in his or her mobile terminal device 100 at step S 110 .
- the user utilizes a data input device such as a keypad (not shown) of the mobile terminal device 100 to enter his or her desired information at step S 110 .
- the information registered in the user's mobile terminal device 100 includes AP setup information for use in regional APs and network setup information of the mobile terminal device 100 connected to the APs.
- FIG. 4A A representative example of the access information management DB 110 constructed at step S 110 is shown in FIG. 4A.
- the mobile terminal device 100 determines at step S 120 whether a prescribed condition for collecting WLAN access information is satisfied.
- the prescribed condition for collecting the WLAN access information may be selectively changed/set up by either a user or a manufacturer of the mobile terminal device 100 .
- This prescribed condition for collecting WLAN access information collection is similar to the aforesaid condition of the access information collector 130 shown in FIG. 3. That is, the operating condition of the access information collector 130 is determined depending on reset or booting information of the mobile terminal device 100 , position change information of the mobile terminal device 100 , and overload information of the mobile terminal device 100 . Detailed descriptions thereof will herein be omitted because they are similar to those of the access information collector 130 shown in FIG. 3.
- the mobile terminal device 100 satisfies the prescribed condition for collecting WLAN access information at step S 120 , information of all the WLAN APs being accessible at a current position of the mobile terminal device 100 is collected at step S 130 .
- the access information analyzer 140 analyzes the collected information, and creates the list of WLAN APs being accessible at a current position of the mobile terminal device 100 at step S 140 .
- the mobile terminal device 100 loads at step S 1150 WLAN access information configured and registered in the access information management DB 110 at step S 110 , and compares at step S 160 the WLAN access information with the list of APs created at step S 140 .
- the comparator 150 determines at step S 160 whether there is a matching AP between the WLAN access information and the list of APs.
- the access information automatic changer 160 automatically changes WLAN access information of the mobile terminal device 100 on the basis of the WLAN access information matched with any AP contained in the APs' list at step S 170 . Otherwise, in the case where there is no matching AP between the WLAN access information and the APs' list, the access information generator 170 adds new WLAN access information to current WLAN access information at step S 180 , i.e., automatically creates new WLAN access information at step S 180 , and then the process returns to step S 150 . Therefore, at steps S 150 ⁇ S 170 , WLAN access information of the mobile terminal device 100 is automatically changed on the basis of the WLAN access information created at step S 180 .
- FIG. 6 is a flow chart illustrating a procedure S 180 for adding WLAN access information to current WLAN access information in accordance with a preferred embodiment of the present invention.
- the access information generator 170 selects one AP from among APs contained in the APs' list at step S 181 to add WLAN access information to current WLAN access information.
- the access information generator 170 selects at least one AP having a prescribed condition wherein either reception field intensity of the mobile terminal device 100 is within a prescribed range on the basis of information transmitted from the AP, or the amount of the AP's load is in a prescribed reference range, from among the APs contained in the APs' list.
- one arbitrary network information among a plurality of the network information stored in the mobile terminal device 100 is loaded at step S 183 .
- the network information is stored in a prescribed storage position or memory of the mobile terminal device 100 , in a known manner.
- the access information generator 170 combines the one AP selected at step S 181 with network information loaded at step S 183 , and thereby automatically creates new WLAN access information at step S 185 . Thereafter, it is determined at step S 187 whether a network status between the mobile terminal device 100 and the APs is normal on the basis of the new WLAN access information created at step S 185 .
- step S 187 If it is determined at step S 187 that a network status between the mobile terminal device 100 and the APs is abnormal, steps S 183 ⁇ S 187 for generating the successive WLAN access information are repeated. Otherwise, if it is determined at step S 187 that a network status between the mobile terminal device 100 and the APs is normal, the WLAN access information created at step S 185 is additionally stored in the access information management DB 110 at step S 189 .
- FIG. 7 is a flow chart illustrating a procedure for automatically changing WLAN access information to another information in accordance with a preferred embodiment of the present invention.
- Steps S 210 ⁇ S 280 shown in FIG. 7 respectively correspond to steps S 130 ⁇ S 170 shown in FIG. 5.
- step S 210 of FIG. 7 corresponds to step S 130 of FIG. 5
- step S 220 of FIG. 7 corresponds to step S 140 of FIG. 5
- steps S 240 ⁇ S 250 of FIG. 7 correspond to step S 160 of FIG.
- step S 260 of FIG. 7 corresponds to step S 170 of FIG.
- step S 270 of FIG. 7 corresponds to step S 180 of FIG.
- step S 280 of FIG. 7 corresponds to step S 150 of FIG. 5, such that their detailed description will herein be omitted.
- FIG. 8 is a flow chart illustrating a procedure for automatically generating WLAN access information in accordance with a preferred embodiment of the present invention.
- Steps S 271 ⁇ S 279 of FIG. 8 respectively correspond to steps S 181 ⁇ S 189 of FIG. 6.
- step S 271 of FIG. 8 corresponds to step S 181 of FIG. 6
- step S 273 of FIG. 8 corresponds to step S 183 of FIG. 6
- step S 275 of FIG. 8 corresponds to step S 185 of FIG. 6
- step S 277 of FIG. 8 corresponds to step S 187 of FIG. 6
- step S 279 of FIG. 8 corresponds to step S 189 of FIG. 6, such that their detailed description will hereinafter be omitted.
- a prescribed condition for selecting any AP at step S 271 is shown in FIG. 8.
- the AP is selected based on a WEP (Wired Equivalent Privacy) status, transmission/reception intensity, data rate, and the number of serviceable associations. Particularly, the lower the number of serviceable associations, the better the AP status.
- WEP Wired Equivalent Privacy
- a mobile terminal apparatus and a method for controlling the same automatically generate/change WLAN access information of a user's mobile terminal device when the user of a WLAN moves from one place to another place, such that the user can freely use the WLAN without setting up an additional process in his or her preferred areas.
- the present invention guarantees maximum mobility to the user, and results in greater convenience for the user, resulting in broader application of the WLAN.
Abstract
A mobile terminal apparatus for automatically generating/changing WLAN access information and a method for controlling the same. A database (DB) stores pre-registered WLAN (Wireless Local Area Network) access information of the mobile terminal apparatus. An access information manager manages the DB. An access information collector collects information of all the APs (Access Points) being accessible at a current position of the mobile terminal apparatus. An access information analyzer analyzes the collected information result of the access information collector, and creates a list of APs being accessible at the current position of the mobile terminal apparatus on the basis of the analyzed result. A comparator compares the list of APs with WLAN access information stored in the access information management DB. An access information automatic changer automatically changes current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of APs. An access information generator automatically generates new WLAN access information when no WLAN access information is matched with the APs contained in the list of APs.
Description
- This application claims priority to an application entitled “MOBILE TERMINAL APPARATUS FOR AUTOMATICALLY GENERATING/CHANGING WIRELESS LOCAL AREA NETWORK ACCESS INFORMATION AND METHOD FOR CONTROLLING THE SAME”, filed in the Korean Intellectual Property Office on Oct. 28, 2002 and assigned Serial No. 2002-65897, the contents of which are hereby incorporated by reference.
- 1. Field of the Invention
- The present invention relates to a mobile terminal apparatus for automatically generating/changing WLAN (Wireless Local Area Network) access information and a method for controlling the same, and more particularly to a mobile terminal apparatus for automatically generating/changing WLAN access information of a user's mobile terminal when the user of a WLAN moves from one place to another to provide the user with maximum mobility, resulting in greater convenience for the user, and a method for the controlling the same.
- 2. Description of the Related Art
- With the increasing development of the next generation wired/wireless integrated technologies, many developers have conducted intensive research into WLAN (Wireless Local Area Network) architecture serving as a major component of next generation communication architectures based on such wired/wireless integrated technologies. It is expected that IT (Internet Technology) industries will rapidly change with the development of such WLAN technologies. Particularly, the WLAN architecture has been developed for use with a variety of mobile terminals such as notebook computers and PDAs (Personal Digital Assistants), with the result that an overall service area of the WLAN has become wider and more diverse.
- FIG. 1 is a conceptual view illustrating a conventional WLAN architecture. Referring to FIG. 1, the conventional WLAN architecture includes an AP (Access Point)20 hard-wired to Internet 10.
Mobile terminal devices 30 such as anotebook computer 30 a or aPDA 30 b can wirelessly communicate with the AP 20. - The AP20 connects a wired LAN with a wireless LAN to enable any user of the
mobile terminal devices 30 to freely surf the Internet 10, and operates over a distance in the range of 20˜30 m in an internal environment, or over a distance in the range of 100˜150 m in an external environment. The AP 20 can be wirelessly connected either to mobileterminal devices 30 for use in buildings where thedevices 30 are located within a radius of about 20˜30 m from the installation area ofAP 20, or to othermobile terminal devices 30 for use outside where thedevices 30 are located within a radius of about 100˜150 m from the installation area ofAP 20. To move from one location to another, a WLAN user must change WLAN access information of themobile terminal devices 30 to be classified according to WLAN service request areas and their APs; however, this may seriously limit expansion of a serviceable area of the WLAN for guaranteeing the user a free access thereto. - For example, in the case where the WLAN user moves to his or her office after accessing the WLAN at home, he or she must change prescribed WLAN access information of his or her mobile terminal to another WLAN access information for the office area, resulting in inconvenience to the user.
- To solve this problem, conventional WLAN users have manually pre-registered WLAN access information (for example, AP setup information related to the WLAN and TCP/IP-related information) of prescribed areas they frequently use in their mobile terminal devices, such that they manually select their desired WLAN access information from among the pre-registered WLAN access information whenever they move from one place to another place in a WLAN service area.
- FIG. 2 is a flow chart illustrating a conventional WLAN access information setup procedure.
- Referring to FIG. 2, a user registers prescribed regional information of a plurality of areas he or she wishes in his or her mobile terminal at step S10. In this case, the regional information registered in the user's mobile terminal includes AP setup information for use in regional APs and network setup information of any mobile terminal adapted to access the APs. In the case where the user requests to search for the pre-registered WLAN access information at step S20 after moving from an initial area to another area, a plurality of WLAN access information pre-registered at step S10 are displayed on a display of his or her mobile terminal at step S30. If the user selects one WLAN access information related to any area he or she wishes from among the plurality of WLAN access information at step S40, the user's mobile terminal changes its current WLAN access information to another access information on the basis of the selected WLAN access information at step S50.
- Although the aforesaid conventional WLAN access information setup procedure shown in FIG. 2 has an advantage in that it reduces the user's inconvenience of manually entering appropriate regional WLAN access information in his or her mobile terminal whenever the user moves from one place to another place, other disadvantages still remain, that is, the user must pre-register a plurality of WLAN access information in his or her mobile terminal and must manually change prior WLAN access information to another WLAN access information for his or her desired area whenever he or she moves from one area to another area. Moreover, in the event that the user moves to another place not pre-registered in the mobile terminal, it is necessary for the user to manually enter new WLAN access information in the mobile terminal.
- Therefore, it is an object of the present invention to provide a mobile terminal apparatus for automatically generating/changing WLAN access information of a user's mobile terminal when the user of a WLAN moves from one place to another place to afford the user maximum mobility, and a method for the controlling the same.
- In accordance with one aspect of the present invention, the above and other objects can be accomplished by the provision of a mobile terminal apparatus, including: an access information management database (DB) for storing pre-registered WLAN (Wireless Local Area Network) access information of the mobile terminal apparatus; an access information manager for managing the access information management DB; an access information collector for collecting information of all WLAN APs (Access Points) being accessible at a current position of the mobile terminal apparatus; an access information analyzer for analyzing the collected information result of the access information collector, and creating a list of WLAN APs accessible at a current position of the mobile terminal apparatus on the basis of the analyzed result; a comparator for comparing the list of the WLAN APs with WLAN access information stored in the access information management DB; an access information automatic changer for automatically changing current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of the WLAN APs; and an access information generator for automatically generating new WLAN access information to be adapted to automatically change current WLAN access information to another and transmitting the new WLAN access information to said comparator when no WLAN access information is matched with the APs contained in the list of WLAN APs.
- In accordance with another aspect of the present invention, there is provided a method for automatically generating/changing WLAN (Wireless Local Area Network) access information, including the steps of: constructing an access information management database (DB) for storing WLAN (Wireless Local Area Network) access information of a mobile terminal apparatus; collecting information of all WLAN APs (Access Points) accessible at a current position of the mobile terminal apparatus on the basis of a prescribed access information collection condition; analyzing the collected information result, and creating a list of WLAN APs accessible at a current position of the mobile terminal apparatus on the basis of the analyzed result; comparing the list of the WLAN APs with WLAN access information stored in the access information management DB; automatically changing current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of the WLAN APs; automatically generating new WLAN access information when there is no WLAN access information matched with the APs contained in the list of WLAN APs in the access information management DB; and automatically changing WLAN access information of the mobile terminal apparatus on the basis of the generated new WLAN access information.
- The above and other objects, features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
- FIG. 1 is a conceptual view illustrating a conventional WLAN architecture;
- FIG. 2 is a flow chart illustrating a conventional WLAN access information setup procedure;
- FIG. 3 illustrates a block diagram of a mobile terminal device in accordance with a preferred embodiment of the present invention;
- FIG. 4A illustrates an exemplary database configuration of the mobile terminal device shown in FIG. 3 in accordance with a preferred embodiment of the present invention;
- FIG. 4B illustrates an exemplary storage configuration of WLAN access information in accordance with a preferred embodiment of the present invention;
- FIG. 5 is a flow chart illustrating a procedure for automatically generating WLAN access information in accordance with a preferred embodiment of the present invention;
- FIG. 6 is a flow chart illustrating a procedure for adding WLAN access information to current WLAN access information in accordance with a preferred embodiment of the present invention;
- FIG. 7 is a flow chart illustrating a procedure for automatically changing a current WLAN access information to another WLAN access information in accordance with a preferred embodiment of the present invention; and
- FIG. 8 is a flow chart illustrating a procedure for adding WLAN access information to current WLAN access information in accordance with a preferred embodiment of the present invention.
- Preferred embodiments of the present invention will be described below in detail with reference to the annexed drawings. In the drawings, the same or similar elements are denoted by the same reference numerals even though they are depicted in different drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention unclear.
- FIG. 3 is a view illustrating a block diagram of a mobile terminal device in accordance with a preferred embodiment of the present invention. Referring to FIG. 3, the
mobile terminal device 100 includes an access information management database (DB) 110, anaccess information manager 120, anaccess information collector 130, anaccess information analyzer 140, acomparator 150, an access informationautomatic changer 160, and anaccess information generator 170. Themobile terminal device 100 may include other features and components, such as a display, a key entry unit, etc., even though they are not shown in FIG. 3. - The access
information management DB 110 stores pre-registered WLAN access information of themobile terminal device 100. In more detail, a user of themobile terminal device 100 commands the accessinformation management DB 110 to store prescribed WLAN access information (for example, AP setup information related to the WLAN and TCP/IP-related information) pre-registered for his or her desired area. - The
access information manager 120 manages the accessinformation management DB 110 upon receiving external commands. For example, theaccess information manager 120 transmits to thecomparator 150 WLAN access information stored in the accessinformation management DB 110 upon receiving a request signal from thecomparator 150, or receives WLAN access information newly generated from theaccess information generator 170 for storage in the accessinformation management DB 110. - The
access information collector 130 collects all the information of all the WLAN APs available at a current position of themobile terminal device 100. In more detail, an operating condition of theaccess information collector 130 may be selectively changed/set up by either a user or a manufacturer of themobile terminal device 100. For example, theaccess information collector 130 may be set up to operate at a prescribed time at which themobile terminal device 100 is reset or starts operating, or may be set up to operate when themobile terminal device 100 moves to another place. Themobile terminal device 100 analyzes in real time a value of field intensity received from its own AP. In this case, if the reception field intensity value is outside of a predetermined or prescribed reference range of the reception field intensity, i.e., if the reception field intensity is lower than a reference field intensity value, it is determined that themobile terminal device 100 has moved from its current place to another place. As another example, if there occurs any overload in the AP to which themobile terminal device 100 is connected, themobile terminal device 100 may set up theaccess information collector 130 to change a current AP to another accessible AP. Therefore, themobile terminal device 100 analyzes in real time the amount of load of the AP. If the amount of load of the AP is outside of a predetermined or prescribed reference range, it is determined that an overload in the AP has occurred. Also, themobile terminal device 100 may set up theaccess information collector 130 to operate in either one or both of the above cases. - In the meantime, information collected by the
access information collector 130 includes among other things, a MAC (Media Access Control) address, a SSID (Service Set IDentifier), reception intensity, transfer rate, and WEP (Wired Equivalent Privacy) setup information. - The
access information analyzer 140 analyzes the information collection result of theaccess information collector 130, and generates a list of WLAN APs accessible at a current position of themobile terminal device 100 on the basis of the analyzed result. For instance, provided that WLAN APs accessible at a current position of the mobileterminal device 100 are set toAP# 1, AP#2, and AP#3, the list of APs is created using a MAC-address of each AP as a key signal. - The
comparator 150 compares the list of APs transmitted from theaccess information analyzer 140 to thecomparator 150 with WLAN access information stored in the accessinformation management DB 110, such that it can determine whether there is a matching AP between the list of APs and the WLAN access information. - Upon receiving the result of such comparison from the
comparator 150, the access informationautomatic changer 160 automatically changes WLAN access information of the mobileterminal device 100 on the basis of WLAN access information matched with any AP contained in the list of APs. - In the case where there is no WLAN access information matched with an AP contained in the list of APs, the
access information generator 170 automatically generates new WLAN access information. In more detail, theaccess information generator 170 combines one wired network information among a plurality of wired network information pre-registered in the mobileterminal device 100 with information of a prescribed AP among a plurality of APs contained in the list of APs, and thereby automatically generates new WLAN access information. For this operation, theaccess information generator 170 selects at least one AP having a prescribed condition, such as, for example, whether the reception field intensity of the mobileterminal device 100 as determined from information transmitted from the AP, or the amount of the AP's load, is in a prescribed reference range, from among the APs contained in the list of APs. In other words, theaccess information generator 170 generates new WLAN access information on the basis of the information of the selected APs. Theaccess information generator 170 transmits the new WLAN access information to thecomparator 150, such that current WLAN access information of the mobileterminal device 100 is automatically changed to another WLAN access information on the basis of the new WLAN access information by the access informationautomatic changer 160. Theaccess information generator 170 additionally registers such automatically generated WLAN access information in the accessinformation management DB 110 over theaccess information manager 120. - FIG. 4A is an exemplary view illustrating a database configuration of the mobile
terminal device 100 shown in FIG. 3 in accordance with a preferred embodiment of the present invention. Referring to FIG. 4A,WLAN access information 200 stored in the accessinformation management DB 110 includes anAP information field 210 and anetwork information field 220 of any terminal. - The
AP information field 210 stores setup information of any AP which is connected to the Internet by wire and provides WLAN service for mobile terminal devices located within a prescribed distance range. In more detail, representative examples of such AP setup information stored in theAP information field 210 are a MAC address of each AP, a SSID (Service Set IDentifier), reception intensity, transfer rate, and WEP (Wired Equivalent Privacy) setup information, etc. - The
network information field 220 stores network information of mobileterminal device 100 corresponding to any AP stored in theAP information field 210. Representative examples of such network information stored in thenetwork information field 220 are an IP address of the mobileterminal device 100, gateway information, a subnet mask, and DNS (Domain Name Server) information, etc. - FIG. 4B is an exemplary view illustrating a storage configuration of WLAN access information having the database configuration shown in FIG. 4a in accordance with a preferred embodiment of the present invention. Referring to FIG. 4b, an AP MAC address such as ‘00:01:02:98:8A:63’ and IP information such as ‘165.210.130.121’ are stored in the database as WLAN access information, and the AP MAC address is matched with the IP information.
- FIG. 5 is a flow chart illustrating a procedure for automatically generating WLAN access information in accordance with a preferred embodiment of the present invention. Referring to FIGS.3 to 5, a method for automatically generating/changing WLAN access information will hereinafter be described in more detail.
- The mobile
terminal device 100 constructs accessinformation management DB 110 for storing WLAN access information therein at step S110. In more detail, a user registers prescribed information of several areas he or she wishes in his or her mobileterminal device 100 at step S110. The user utilizes a data input device such as a keypad (not shown) of the mobileterminal device 100 to enter his or her desired information at step S110. In this case, the information registered in the user's mobileterminal device 100 includes AP setup information for use in regional APs and network setup information of the mobileterminal device 100 connected to the APs. A representative example of the accessinformation management DB 110 constructed at step S110 is shown in FIG. 4A. - In this way, if the access
information management DB 110 is constructed at step S110, then the mobileterminal device 100 determines at step S120 whether a prescribed condition for collecting WLAN access information is satisfied. The prescribed condition for collecting the WLAN access information may be selectively changed/set up by either a user or a manufacturer of the mobileterminal device 100. This prescribed condition for collecting WLAN access information collection is similar to the aforesaid condition of theaccess information collector 130 shown in FIG. 3. That is, the operating condition of theaccess information collector 130 is determined depending on reset or booting information of the mobileterminal device 100, position change information of the mobileterminal device 100, and overload information of the mobileterminal device 100. Detailed descriptions thereof will herein be omitted because they are similar to those of theaccess information collector 130 shown in FIG. 3. - In the case where the mobile
terminal device 100 satisfies the prescribed condition for collecting WLAN access information at step S120, information of all the WLAN APs being accessible at a current position of the mobileterminal device 100 is collected at step S130. Theaccess information analyzer 140 analyzes the collected information, and creates the list of WLAN APs being accessible at a current position of the mobileterminal device 100 at step S140. - Then, the mobile
terminal device 100 loads at step S1150 WLAN access information configured and registered in the accessinformation management DB 110 at step S110, and compares at step S160 the WLAN access information with the list of APs created at step S140. In more detail, thecomparator 150 determines at step S160 whether there is a matching AP between the WLAN access information and the list of APs. - If it is determined at step S160 that there is such a matching AP between the WLAN access information and the list of APs, the access information
automatic changer 160 automatically changes WLAN access information of the mobileterminal device 100 on the basis of the WLAN access information matched with any AP contained in the APs' list at step S170. Otherwise, in the case where there is no matching AP between the WLAN access information and the APs' list, theaccess information generator 170 adds new WLAN access information to current WLAN access information at step S180, i.e., automatically creates new WLAN access information at step S180, and then the process returns to step S150. Therefore, at steps S150˜S170, WLAN access information of the mobileterminal device 100 is automatically changed on the basis of the WLAN access information created at step S180. - FIG. 6 is a flow chart illustrating a procedure S180 for adding WLAN access information to current WLAN access information in accordance with a preferred embodiment of the present invention. With reference to FIGS. 3 and 6, the
access information generator 170 selects one AP from among APs contained in the APs' list at step S181 to add WLAN access information to current WLAN access information. For example, theaccess information generator 170 selects at least one AP having a prescribed condition wherein either reception field intensity of the mobileterminal device 100 is within a prescribed range on the basis of information transmitted from the AP, or the amount of the AP's load is in a prescribed reference range, from among the APs contained in the APs' list. Then, one arbitrary network information among a plurality of the network information stored in the mobileterminal device 100 is loaded at step S183. In this case, the network information is stored in a prescribed storage position or memory of the mobileterminal device 100, in a known manner. - If prescribed preparations for generating WLAN access information are provided as the above, the
access information generator 170 combines the one AP selected at step S181 with network information loaded at step S183, and thereby automatically creates new WLAN access information at step S185. Thereafter, it is determined at step S187 whether a network status between the mobileterminal device 100 and the APs is normal on the basis of the new WLAN access information created at step S185. - If it is determined at step S187 that a network status between the mobile
terminal device 100 and the APs is abnormal, steps S183˜S187 for generating the successive WLAN access information are repeated. Otherwise, if it is determined at step S187 that a network status between the mobileterminal device 100 and the APs is normal, the WLAN access information created at step S185 is additionally stored in the accessinformation management DB 110 at step S189. - A method for automatically generating/changing WLAN access information according to the present invention will hereinafter be described with reference to FIGS.7˜8 for better understanding of the present invention.
- FIG. 7 is a flow chart illustrating a procedure for automatically changing WLAN access information to another information in accordance with a preferred embodiment of the present invention. Steps S210˜S280 shown in FIG. 7 respectively correspond to steps S130˜S170 shown in FIG. 5. In more detail, step S210 of FIG. 7 corresponds to step S130 of FIG. 5, step S220 of FIG. 7 corresponds to step S140 of FIG. 5, steps S240˜S250 of FIG. 7 correspond to step S160 of FIG. 5, step S260 of FIG. 7 corresponds to step S170 of FIG. 5, step S270 of FIG. 7 corresponds to step S180 of FIG. 5, and step S280 of FIG. 7 corresponds to step S150 of FIG. 5, such that their detailed description will herein be omitted.
- FIG. 8 is a flow chart illustrating a procedure for automatically generating WLAN access information in accordance with a preferred embodiment of the present invention. Steps S271˜S279 of FIG. 8 respectively correspond to steps S181˜S189 of FIG. 6. In more detail, step S271 of FIG. 8 corresponds to step S181 of FIG. 6, step S273 of FIG. 8 corresponds to step S183 of FIG. 6, step S275 of FIG. 8 corresponds to step S185 of FIG. 6, step S277 of FIG. 8 corresponds to step S187 of FIG. 6, and step S279 of FIG. 8 corresponds to step S189 of FIG. 6, such that their detailed description will hereinafter be omitted. Particularly, a prescribed condition for selecting any AP at step S271 is shown in FIG. 8. In this case, the AP is selected based on a WEP (Wired Equivalent Privacy) status, transmission/reception intensity, data rate, and the number of serviceable associations. Particularly, the lower the number of serviceable associations, the better the AP status.
- As is apparent from the above description, a mobile terminal apparatus and a method for controlling the same according to the present invention automatically generate/change WLAN access information of a user's mobile terminal device when the user of a WLAN moves from one place to another place, such that the user can freely use the WLAN without setting up an additional process in his or her preferred areas. In brief, the present invention guarantees maximum mobility to the user, and results in greater convenience for the user, resulting in broader application of the WLAN.
- Although preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (15)
1. A mobile terminal apparatus, comprising:
an access information management database (DB) for storing pre-registered WLAN (Wireless Local Area Network) access information of the mobile terminal apparatus;
an access information collector for collecting information of all the WLAN Aps (Access Points) being accessible at a current position of the mobile terminal apparatus;
an access information analyzer for analyzing the collected information of the access information collector, and creating a list of the WLAN APs being accessible at the current position of the mobile terminal apparatus based on the analysis;
a comparator for comparing the list of the WLAN APs with WLAN access information stored in the access information management DB;
an access information automatic changer for automatically changing current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of the WLAN APs; and
an access information generator for automatically generating new WLAN access information to be adapted to automatically change current WLAN access information to another when no WLAN access information is matched with the APs contained in the list of WLAN APs.
2. The mobile terminal apparatus as set forth in claim 1 , wherein the access information management DB includes:
an AP information field for storing setup information of APs which are connected to an Internet by wire and provide WLAN service for a plurality of mobile terminal apparatuses located within a prescribed distance range; and
a network information field for storing network information of the mobile terminal apparatuses corresponding to any AP stored in the AP information field.
3. The mobile terminal apparatus as set forth in claim 1 , wherein the access information collector operates as a result of resetting or booting the mobile terminal apparatus.
4. The mobile terminal apparatus as set forth in claim 1 , wherein the access information collector operates when either reception field intensity received from any AP connected to the mobile terminal apparatus or the amount of load of the AP is outside of a predetermined reference range.
5. The mobile terminal apparatus as set forth in claim 1 , wherein the access information generator combines one wired network information among a plurality of wired network information pre-registered in the mobile terminal apparatus with information of a prescribed AP among a plurality of APs contained in the list of APs, and automatically generates new WLAN access information.
6. The mobile terminal apparatus as set forth in claim 5 , wherein the access information generator selects at least one AP having a prescribed condition, wherein either the reception field intensity of the mobile terminal apparatus is in a prescribed range based on information transmitted from the AP, or the amount of the AP's load is in a prescribed reference range, from among the APs contained in the list of APs, and generates new WLAN access information based on information of the selected APs.
7. The mobile terminal apparatus as set forth in claim 1 , further comprising:
an access information manager for managing the access information management DB.
8. The mobile terminal apparatus as set forth in claim 7 , wherein the access information generator additionally registers the automatically generated WLAN access information in the access information management DB over the access information manager.
9. A method for automatically generating/changing WLAN (Wireless Local Area Network) access information, comprising the steps of:
a) constructing an access information management database (DB) for storing WLAN (Wireless Local Area Network) access information of a mobile terminal apparatus;
b) collecting information of all the WLAN APs (Access Points) being accessible at a current position of the mobile terminal apparatus on the basis of a prescribed access information collection condition;
c) analyzing the collected information, and creating a list of the WLAN APs being accessible at the current position of the mobile terminal apparatus based on the analysis;
d) comparing the list of the WLAN APs with WLAN access information stored in the access information management DB;
e) automatically changing current WLAN access information of the mobile terminal apparatus to another on the basis of WLAN access information matched with APs contained in the list of the WLAN APs;
f) automatically generating new WLAN access information when there is no WLAN access information matched with the APs contained in the list of WLAN APs in the access information management DB; and
g) automatically changing WLAN access information of the mobile terminal apparatus on the basis of the new WLAN access information generated.
10. The method as set forth in claim 9 , wherein step (a) includes the steps of:
constructing an AP (Access Point) information field for storing setup information of APs which are connected to an Internet by wire and provide WLAN service for a plurality of mobile terminal apparatuses located within a prescribed distance range; and
constructing a network information field for storing network information of the mobile terminal apparatuses corresponding to any AP stored in the AP information field.
11. The method as set forth in claim 9 , wherein step (b) operates upon resetting or booting the mobile terminal apparatus.
12. The method as set forth in claim 9 , wherein step (b) operates when either reception field intensity received from any AP connected to the mobile terminal apparatus or the amount of load of the AP is outside of a predetermined reference range.
13. The method as set forth in claim 9 , wherein step (g) includes the steps of:
g1) selecting at least one AP having a prescribed condition, wherein either the reception field intensity of the mobile system 100 is in a prescribed range based on information transmitted from the AP, or the amount of the AP's load is in a prescribed reference range, from among the APs contained in the list of WLAN APs;
g2) loading one arbitrary network information among a plurality of network information pre-stored in the mobile terminal apparatus; and
g3) combining the AP selected at step (g1) with the network information loaded at step (g2), and automatically generating new WLAN access information.
14. The method as set forth in claim 13 , wherein step (g) further includes the steps of:
g4) determining whether a network status between any mobile terminal apparatus and its AP is normal on the basis of the new WLAN access information automatically generated at step (g3); and
g5) if the network status between the mobile terminal apparatus and its AP is abnormal, repeatedly executing steps (g2) to (g4).
15. The method as set forth in claim 14 , wherein step (g) further includes the step of:
g6) adding the automatically generated new WLAN access information to the access information management DB.
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US20180092030A1 (en) | 2018-03-29 |
US9572094B2 (en) | 2017-02-14 |
US10021631B2 (en) | 2018-07-10 |
US10225793B2 (en) | 2019-03-05 |
US20180054777A1 (en) | 2018-02-22 |
US9961622B2 (en) | 2018-05-01 |
KR20040037420A (en) | 2004-05-07 |
US9775106B2 (en) | 2017-09-26 |
US20170353918A1 (en) | 2017-12-07 |
KR100913869B1 (en) | 2009-08-26 |
US9913210B2 (en) | 2018-03-06 |
US9232464B2 (en) | 2016-01-05 |
US20180199275A1 (en) | 2018-07-12 |
US20160135119A1 (en) | 2016-05-12 |
US20160381628A1 (en) | 2016-12-29 |
US20110064063A1 (en) | 2011-03-17 |
US10660027B2 (en) | 2020-05-19 |
US20190159112A1 (en) | 2019-05-23 |
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