WO2006001640A1 - Method of connecting mobile comunication terminals having bluetooth module - Google Patents

Method of connecting mobile comunication terminals having bluetooth module Download PDF

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Publication number
WO2006001640A1
WO2006001640A1 PCT/KR2005/001949 KR2005001949W WO2006001640A1 WO 2006001640 A1 WO2006001640 A1 WO 2006001640A1 KR 2005001949 W KR2005001949 W KR 2005001949W WO 2006001640 A1 WO2006001640 A1 WO 2006001640A1
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WO
WIPO (PCT)
Prior art keywords
bluetooth
mobile communication
phone number
communication terminal
bluetooth device
Prior art date
Application number
PCT/KR2005/001949
Other languages
French (fr)
Inventor
Seok-Woong Chang
Original Assignee
Sk Telecom. Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sk Telecom. Co., Ltd. filed Critical Sk Telecom. Co., Ltd.
Publication of WO2006001640A1 publication Critical patent/WO2006001640A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/50—Secure pairing of devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/72—Subscriber identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Definitions

  • the present invention relates, in general, to a method of connection between mobile communication terminals having Bluetooth modules and, more particularly, to a method of setting the phone number (Mobile Identification Number: MIN) of a mobile communication terminal to the password (Personal Identification Number: PIN) of a Bluetooth module, thus facilitating a connection to another mobile communication terminal having a Bluetooth module.
  • MIN Mobile Identification Number
  • PIN Personal Identification Number
  • Bluetooth is a standard for short-range wireless communication, and is technology for transmitting voice and data at a maximum rate of 1 Mbps within a range having a radius of 10m using a 2.4 GHz Industrial, Scientific, and Medical (ISM) frequency band.
  • ISM Industrial, Scientific, and Medical
  • FIGS. 1 and 2 a typical process of connection between mobile communication terminals having Bluetooth modules is described.
  • a mobile communication terminal desiring to make a Bluetooth connection with another mobile communication terminal, broadcasts an inquiry packet so as to search for adjacent Bluetooth modules.
  • the adjacent Bluetooth modules having received the inquiry packet, transmit a Frequency Hopping Selection (FHS) packet as a response.
  • the FHS packet is composed of an access code, a header and a payload.
  • LAP Lower Address Part
  • UAP Upper Address Part
  • NAP Non-Significant Address Part
  • a paging packet is transmitted to the Bluetooth module of the selected mobile communication terminal, and the mobile communication terminal transmits a paging response packet.
  • the connection between mobile communication terminals having Bluetooth modules is completed.
  • the address information of the Bluetooth module is implemented using HEX code, it is difficult for a user to recognize the address information.
  • the remote names of the Bluetooth modules collected through a remote name request procedure, can be arbitrarily revised by the user, a limitation inevitably exists in identifying a particular mobile communication terminal having the Bluetooth module desired by the user.
  • an object of the present invention is to provide a method of setting the password (PIN) of a Bluetooth module, included in a mobile communication terminal, to the same number as the phone number (MIN) of the mobile communication terminal, thus connecting to a desired counterpart mobile communication terminal using Bluetooth, by inputting the phone number of the desired counterpart mobile communication terminal.
  • PIN password
  • MIN phone number
  • Another object of the present invention is to provide a method of setting the remote name of a Bluetooth module included in a mobile communication terminal, as well as the password (PIN) of the Bluetooth module, to the same number as the phone number (MIN) of the mobile communication terminal, thus facilitating the connection to a desired counterpart mobile communication terminal by inputting only the phone number of the desired counterpart mobile communication terminal.
  • PIN password
  • MIN phone number
  • a method of connection between mobile communication terminals having Bluetooth modules comprising a first step of setting a password (Personal Identification Number: PIN) of a Bluetooth module of a mobile communication terminal to a phone number (Mobile Identification Number: MIN) of the mobile communication terminal; a second step of broadcasting an inquiry packet to search for adjacent Bluetooth devices if a phone number (MIN) of a desired counterpart mobile communication terminal has been input; a third step of receiving response packets from the adjacent Bluetooth devices in response to the inquiry packet; a fourth step of transmitting the phone number (MIN), input at the second step, to a corresponding adjacent Bluetooth device that has transmitted the response packet, thus attempting pairing; a fifth step of, if a notification of dissimilarity between the phone number (MIN), transmitted at the time of attempting pairing, and PIN information of the adjacent Bluetooth device is provided by the adjacent Bluetooth device, repeatedly performing the fourth step with respect to another Bluetooth device that has transmitted the response packet;
  • PIN Personal Identification Number
  • the sixth step may be performed so that a counterpart Bluetooth device notifies a user of Bluetooth connection before the ACL link is established, and establishes the ACL link if the user accepts the connection.
  • the first step may be performed so that the setting of PIN is achieved by automatically storing the phone number (MIN), which has been input at the time of inputting the MIN in the mobile communication terminal's own number input mode, in memory of the Bluetooth module as the PIN value through an agent participating in the PIN setting between a user interface module and the Bluetooth module of the mobile communication terminal.
  • MIN phone number
  • a method of connection between mobile communication terminals having Bluetooth modules comprising a first step of setting both a remote name and a password (Personal Identification Number: PIN) of a Bluetooth module of a mobile communication terminal to a phone number (Mobile Identification Number: MIN) of the mobile communication terminal; a second step of broadcasting an inquiry packet to search for adjacent Bluetooth devices if a phone number (MIN) of a desired counterpart mobile communication terminal has been input; a third step of receiving response packets from the adjacent Bluetooth devices in response to the inquiry packet; a fourth step of determining whether a Bluetooth device having a remote name coinciding with the phone number (MIN), input at the second step, exists among the adjacent Bluetooth devices that have transmitted the response packets; a fifth step of, if a Bluetooth device having a remote name coinciding with the input phone number (MIN) exists at the fourth step, transmitting the phone number (MIN), input at the second step, to the Bluetooth device, thus attempting pairing;
  • the sixth step may be performed so that the Bluetooth device having a remote name coinciding with the input phone number notifies a user of Bluetooth connection before the ACL link is established, and establishes the ACL link if the user accepts the connection.
  • the first step may be performed so that setting of the remote name and PIN is achieved by automatically storing the phone number (MIN), which has been input at the time of inputting the MIN in the mobile communication terminal's own number input mode, in memory of the Bluetooth module as the remote name and the PIN value through an agent.
  • MIN phone number
  • a user can easily connect to a desired mobile communication terminal, by inputting the phone number of the mobile communication terminal of a desired counterpart user at the time of executing Bluetooth applications between terminals, that is, playing network games or transmitting calling cards or files, etc.
  • FIG. 1 is a flowchart sequentially showing a typical process of connection between Bluetooth modules
  • FIG. 2 is a view showing the configuration of a typical FHS packet
  • FIG. 3 is a block diagram of a mobile communication terminal according to the present invention
  • FIG. 4 is a flowchart of a method of connection between mobile communication terminals having Bluetooth modules according to a first embodiment of the present invention
  • FIG. 5 is a flow diagram showing a connection method using Bluetooth modules in mobile communication terminals according to a first embodiment of the present invention
  • FIG. 6 is a flowchart of a method of connection between mobile communication terminals having Bluetooth modules according to a second embodiment of the present invention.
  • FIG. 3 is a block diagram of a mobile communication terminal 10 according to the present invention.
  • the mobile communication terminal of the present invention includes a Bluetooth module 20, an agent 30, and a mobile communication unit 40.
  • the Bluetooth module 20 includes a Radio Frequency (RF) transmission/reception unit, a baseband processing unit, a link control unit, etc.
  • the mobile communication unit 40 is a typical functional unit of the mobile communication terminal including an RF communication unit, an input/output unit, a control unit, etc.
  • the agent 30 includes a connection unit 31 and a control unit 32, and performs the Personal Identification Number (PIN) setting function of the present invention between the Bluetooth module 20 and the mobile communication unit 40.
  • PIN Personal Identification Number
  • the connection unit 31 functions to connect the agent 30 both to the Bluetooth module 20 and to the mobile communication unit 40.
  • the control unit 32 analyzes various data acquired by the connection unit 31 and allows the agent 30 to participate in the setting of the PIN of the Bluetooth module 20, a search for Bluetooth modules and a pairing procedure.
  • the PIN setting function is achieved by storing the Mobile Identification Number (MIN: phone number) of a mobile communication terminal in the memory of the Bluetooth module as PIN information.
  • MIN Mobile Identification Number
  • the PIN stored in this way is used as information required to determine a counterpart mobile communication terminal to which to connect during a later connection process executed between mobile communication terminals having Bluetooth modules.
  • the agent occasionally participates in a Bluetooth module search procedure and a pairing procedure, which will be described later.
  • the Bluetooth module of the mobile communication terminal attempts to inquire about adjacent Bluetooth modules. That is, the Bluetooth module included in the mobile communication terminal broadcasts an inquiry packet to search for adjacent Bluetooth devices at step 60.
  • the Bluetooth module of the mobile communication terminal receives FHS packets, transmitted by adjacent Bluetooth devices as inquiry responses, at step 70.
  • the agent of the mobile communication terminal receives information about N (arbitrary natural number) Bluetooth devices (for example, remote names) through the received FHS packets. Thereafter, the Bluetooth module of the mobile communication terminal attempts pairing with respect to each of the N found Bluetooth devices at step 80.
  • a counterpart Bluetooth device requests the input of PIN information. Therefore, the mobile communication terminal, having attempted connection, transmits the phone number that is input by the user (the phone number of a desired counterpart) to the found Bluetooth device during the pairing procedure.
  • the counterpart Bluetooth device compares the input phone number (MIN) with the password (PIN) thereof during the pairing procedure at step 90. If the MIN does not coincide with the PIN as a result of comparison, the counterpart Bluetooth device transmits a notification of dissimilarity between the MIN and the PIN to the mobile communication terminal having attempted connection. Then, the mobile communication terminal, having attempted connection, attempts pairing with respect to a subsequent Bluetooth device.
  • the counterpart Bluetooth device establishes an Asynchronous Connectionless (ACL) link with the mobile communication terminal having requested connection at step 100. Accordingly, the mobile communication terminal having attempted connection can establish a Bluetooth link with a desired mobile communication terminal.
  • This pairing procedure is sequentially and repeatedly performed with respect to found Bluetooth devices until a Bluetooth device having PIN information coinciding with the input phone number (MIN) is found. If link establishment has failed even though the pairing procedure has been performed with respect to all found Bluetooth devices, the pairing procedure is terminated. In the meantime, during the pairing process, a Bluetooth device having PIN information coinciding with the phone number (MIN) can notify a user of the connection before establishing an ACL link.
  • FIG. 5 is a flow diagram showing a method of connection between mobile communication terminals according to a first embodiment of the present invention.
  • the Man-Machine Interface (MMI) of the mobile communication terminal receives the phone number (MIN) of a desired counterpart mobile communication terminal from the user at step S10. If the phone number (MIN) of the counterpart mobile communication terminal is received, an agent requests the Bluetooth module to perform an inquiry procedure at step S20. Accordingly, the Bluetooth module broadcasts an inquiry packet at step S30. First to Nth Bluetooth devices, having received the inquiry packet, transmit FHS packets in response to the inquiry packet at step S40. The agent can collect information about N adjacent Bluetooth devices (for example, remote names, etc.) by receiving the FHS response packets.
  • N adjacent Bluetooth devices for example, remote names, etc.
  • the agent transmits the phone number (MIN) of the counterpart terminal, which has been received from the user, to the Bluetooth module without notifying the user of information collected from the adjacent Bluetooth devices, thus requesting pairing.
  • the Bluetooth module sequentially attempts pairing with respect to N Bluetooth devices using the received phone number (MIN) at steps S50 and S70.
  • MIN phone number
  • the Bluetooth devices other than a mobile communication terminal desired by the user have passwords thereof (PIN) that do not coincide with the received phone number (MIN)
  • PIN passwords thereof
  • the establishment of an ACL link has failed at step S60. If pairing has failed, the agent repeatedly performs the same pairing procedure with respect to a subsequent Bluetooth device.
  • step S80 pairing has succeeded at step S80, and an ACL link is established between both mobile communication terminals.
  • the agent notifies counterpart users of connection, and establishes an ACL link through the Bluetooth module when the users accept the connection.
  • FIG. 6 is a flowchart of a method of connection between mobile communication terminals having Bluetooth modules according to a second embodiment of the present invention.
  • a pairing procedure must be sequentially performed with respect to Bluetooth devices found through an inquiry procedure until a Bluetooth device having PIN coinciding with an input phone number (MIN) is found.
  • the remote name of a Bluetooth module as well as the PIN information thereof is also set to be the same as a phone number (MIN).
  • MIN phone number
  • a pairing procedure is performed with respect only to a Bluetooth device having a remote name coinciding with the input phone number (MIN) among adjacent Bluetooth devices obtained through inquiry. As a result, the time required to connect to a desired counterpart mobile communication terminal can be shortened. This operation is described in detail with reference to FIG. 6.
  • a phone number (MIN) which has been input at the time of inputting MIN in the mobile communication terminal's own number input mode, is automatically stored, by an agent, in the memory of a Bluetooth module as a remote name and a PIN value, respectively.
  • a user inputs the phone number of a desired counterpart mobile communication terminal through a user interface. If the phone number of the desired counterpart terminal has been input by the user at step S101 , a mobile communication terminal, having attempted connection, broadcasts an inquiry packet so as to search for adjacent Bluetooth devices at step S102.
  • the adjacent Bluetooth devices having received the inquiry packet, transmit response packets to the inquiry, in detail, to Bluetooth devices having requested Bluetooth information thereof (for example, a remote name) at step S103.
  • the mobile communication terminal If the mobile communication terminal, having attempted connection, receives a response packet from each adjacent Bluetooth device, the mobile communication terminal compares a Bluetooth remote name contained in the response packet with the input phone number (MIN) at step S104. The mobile communication terminal, having attempted connection, determines whether a Bluetooth device, having a remote name coinciding with the input phone number (MIN), exists, through comparison. As a result of determination, if a Bluetooth device having a remote name coinciding with the input phone number (MIN) is found at step S105, the mobile communication terminal having attempted connection performs pairing with respect only to the Bluetooth device (counterpart mobile communication terminal) having a remote name coinciding with the phone number (MIN).
  • the mobile communication terminal having attempted the connection transmits the phone number (MIN) of the counterpart mobile communication terminal, which has been input by the user, to the Bluetooth module of the counterpart mobile communication terminal, thus performing pairing at step S106. If the pairing procedure has been successfully performed, an ACL link is established between the Bluetooth module of the mobile communication terminal, having attempted connection, and the Bluetooth module of the counterpart mobile communication terminal at step S107. Accordingly, both mobile communication terminals can communicate with each other. If an ACL link release request is received in a connection state at step S108, the established link is released and the process is terminated.
  • the mobile communication terminal having attempted connection notifies the user of a failed connection attempt at step S109, and the process is terminated.
  • the present invention can transmit or receive various network games and information if the connection to a desired counterpart has been completed through the above process.
  • the mobile communication terminals in order to execute applications, such as shared network games, between mobile communication terminals, the mobile communication terminals must have the same applications.
  • a terminal requesting connection, transmits URL information enabling the download of an application ID and a corresponding application to a counterpart terminal through the execution of the application.
  • the counterpart terminal determines whether it has the corresponding application on the basis of the application ID, and accesses a server having the URL through the wireless Internet to download the corresponding application if it does not have the application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a method of connecting mobile communication terminals having Bluetooth module. According to the invention, phone number(MIN) of a mobile terminal is set as the password(PIN) of a Bluetooth model of the mobile terminal. Pairing is attempted by transmitting a phone number entered by a user to nearby Bluetooth devices found during a search process. A Bluetooth device having PIN information corresponding to the transmitted phone number establishes an ACL link with the mobile terminal. By entering the phone number of a mobile terminal to be connected, Bluetooth communication between mobile terminals can be established.

Description

METHOD OF CONNECTING MOBILE COMMUNICATION TERMINALS HAVING BLUETOOTH MODULE
[Technical Field] The present invention relates, in general, to a method of connection between mobile communication terminals having Bluetooth modules and, more particularly, to a method of setting the phone number (Mobile Identification Number: MIN) of a mobile communication terminal to the password (Personal Identification Number: PIN) of a Bluetooth module, thus facilitating a connection to another mobile communication terminal having a Bluetooth module.
[Background Art] Generally, Bluetooth is a standard for short-range wireless communication, and is technology for transmitting voice and data at a maximum rate of 1 Mbps within a range having a radius of 10m using a 2.4 GHz Industrial, Scientific, and Medical (ISM) frequency band. With reference to FIGS. 1 and 2, a typical process of connection between mobile communication terminals having Bluetooth modules is described. A mobile communication terminal, desiring to make a Bluetooth connection with another mobile communication terminal, broadcasts an inquiry packet so as to search for adjacent Bluetooth modules. The adjacent Bluetooth modules, having received the inquiry packet, transmit a Frequency Hopping Selection (FHS) packet as a response. The FHS packet is composed of an access code, a header and a payload. In the payload, a total of 48 bits including a Lower Address Part (LAP) of 24 bits, an Upper Address Part (UAP) of 8 bits, and a Non-Significant Address Part (NAP) of 16 bits, is a unique value allocated to each Bluetooth module, and is used to determine the address of the Bluetooth module. Next, a remote name request is performed with respect to adjacent Bluetooth modules that are found by the inquiry, and the remote names of respective Bluetooth modules are collected. Thereafter, if the address information and remote names of the found adjacent Bluetooth modules are displayed on the mobile communication terminal, a user selects a desired mobile communication terminal to which to connect, from a list of Bluetooth modules. Accordingly, a paging packet is transmitted to the Bluetooth module of the selected mobile communication terminal, and the mobile communication terminal transmits a paging response packet. As a result, the connection between mobile communication terminals having Bluetooth modules is completed. However, since the address information of the Bluetooth module is implemented using HEX code, it is difficult for a user to recognize the address information. Further, since the remote names of the Bluetooth modules, collected through a remote name request procedure, can be arbitrarily revised by the user, a limitation inevitably exists in identifying a particular mobile communication terminal having the Bluetooth module desired by the user.
[Disclosure of Invention] [Technical Problem] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method of setting the password (PIN) of a Bluetooth module, included in a mobile communication terminal, to the same number as the phone number (MIN) of the mobile communication terminal, thus connecting to a desired counterpart mobile communication terminal using Bluetooth, by inputting the phone number of the desired counterpart mobile communication terminal. Another object of the present invention is to provide a method of setting the remote name of a Bluetooth module included in a mobile communication terminal, as well as the password (PIN) of the Bluetooth module, to the same number as the phone number (MIN) of the mobile communication terminal, thus facilitating the connection to a desired counterpart mobile communication terminal by inputting only the phone number of the desired counterpart mobile communication terminal.
[Technical Solution] In accordance with a first aspect of the present invention to accomplish the above objects, there is provided a method of connection between mobile communication terminals having Bluetooth modules, comprising a first step of setting a password (Personal Identification Number: PIN) of a Bluetooth module of a mobile communication terminal to a phone number (Mobile Identification Number: MIN) of the mobile communication terminal; a second step of broadcasting an inquiry packet to search for adjacent Bluetooth devices if a phone number (MIN) of a desired counterpart mobile communication terminal has been input; a third step of receiving response packets from the adjacent Bluetooth devices in response to the inquiry packet; a fourth step of transmitting the phone number (MIN), input at the second step, to a corresponding adjacent Bluetooth device that has transmitted the response packet, thus attempting pairing; a fifth step of, if a notification of dissimilarity between the phone number (MIN), transmitted at the time of attempting pairing, and PIN information of the adjacent Bluetooth device is provided by the adjacent Bluetooth device, repeatedly performing the fourth step with respect to another Bluetooth device that has transmitted the response packet; and a sixth step of, if a notification of coincidence between the phone number (MIN), transmitted at the time of attempting pairing, and PIN information of the Bluetooth device, is provided by the Bluetooth device, establishing an Asynchronous Connectionless (ACL) link with the Bluetooth device having provided the notification of coincidence. Preferably, the sixth step may be performed so that a counterpart Bluetooth device notifies a user of Bluetooth connection before the ACL link is established, and establishes the ACL link if the user accepts the connection. Preferably, the first step may be performed so that the setting of PIN is achieved by automatically storing the phone number (MIN), which has been input at the time of inputting the MIN in the mobile communication terminal's own number input mode, in memory of the Bluetooth module as the PIN value through an agent participating in the PIN setting between a user interface module and the Bluetooth module of the mobile communication terminal. In accordance with a second aspect of the present invention to accomplish the above objects, there is provided a method of connection between mobile communication terminals having Bluetooth modules, comprising a first step of setting both a remote name and a password (Personal Identification Number: PIN) of a Bluetooth module of a mobile communication terminal to a phone number (Mobile Identification Number: MIN) of the mobile communication terminal; a second step of broadcasting an inquiry packet to search for adjacent Bluetooth devices if a phone number (MIN) of a desired counterpart mobile communication terminal has been input; a third step of receiving response packets from the adjacent Bluetooth devices in response to the inquiry packet; a fourth step of determining whether a Bluetooth device having a remote name coinciding with the phone number (MIN), input at the second step, exists among the adjacent Bluetooth devices that have transmitted the response packets; a fifth step of, if a Bluetooth device having a remote name coinciding with the input phone number (MIN) exists at the fourth step, transmitting the phone number (MIN), input at the second step, to the Bluetooth device, thus attempting pairing; and a sixth step of, if a notification of coincidence between the remote name and the input phone number is provided by the Bluetooth device, establishing an Asynchronous Connectionless (ACL) link with the Bluetooth device. Preferably, the sixth step may be performed so that the Bluetooth device having a remote name coinciding with the input phone number notifies a user of Bluetooth connection before the ACL link is established, and establishes the ACL link if the user accepts the connection. Preferably, the first step may be performed so that setting of the remote name and PIN is achieved by automatically storing the phone number (MIN), which has been input at the time of inputting the MIN in the mobile communication terminal's own number input mode, in memory of the Bluetooth module as the remote name and the PIN value through an agent.
[Advantageous Effects] According to the present invention, a user can easily connect to a desired mobile communication terminal, by inputting the phone number of the mobile communication terminal of a desired counterpart user at the time of executing Bluetooth applications between terminals, that is, playing network games or transmitting calling cards or files, etc.
[Brief Description of Drawings] FIG. 1 is a flowchart sequentially showing a typical process of connection between Bluetooth modules; FIG. 2 is a view showing the configuration of a typical FHS packet; FIG. 3 is a block diagram of a mobile communication terminal according to the present invention; FIG. 4 is a flowchart of a method of connection between mobile communication terminals having Bluetooth modules according to a first embodiment of the present invention; FIG. 5 is a flow diagram showing a connection method using Bluetooth modules in mobile communication terminals according to a first embodiment of the present invention; and FIG. 6 is a flowchart of a method of connection between mobile communication terminals having Bluetooth modules according to a second embodiment of the present invention. [Best Mode] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. FIG. 3 is a block diagram of a mobile communication terminal 10 according to the present invention. The mobile communication terminal of the present invention includes a Bluetooth module 20, an agent 30, and a mobile communication unit 40. The Bluetooth module 20 includes a Radio Frequency (RF) transmission/reception unit, a baseband processing unit, a link control unit, etc. The mobile communication unit 40 is a typical functional unit of the mobile communication terminal including an RF communication unit, an input/output unit, a control unit, etc. The agent 30 includes a connection unit 31 and a control unit 32, and performs the Personal Identification Number (PIN) setting function of the present invention between the Bluetooth module 20 and the mobile communication unit 40. The connection unit 31 functions to connect the agent 30 both to the Bluetooth module 20 and to the mobile communication unit 40. The control unit 32 analyzes various data acquired by the connection unit 31 and allows the agent 30 to participate in the setting of the PIN of the Bluetooth module 20, a search for Bluetooth modules and a pairing procedure. The PIN setting function is achieved by storing the Mobile Identification Number (MIN: phone number) of a mobile communication terminal in the memory of the Bluetooth module as PIN information. The PIN stored in this way is used as information required to determine a counterpart mobile communication terminal to which to connect during a later connection process executed between mobile communication terminals having Bluetooth modules. Further, the agent occasionally participates in a Bluetooth module search procedure and a pairing procedure, which will be described later. FIG. 4 is a flowchart showing a process of connection between mobile communication terminals having Bluetooth modules according to a first embodiment of the present invention. If the phone number (MIN) of a desired counterpart mobile communication terminal is input by a user at step 50, the Bluetooth module of the mobile communication terminal attempts to inquire about adjacent Bluetooth modules. That is, the Bluetooth module included in the mobile communication terminal broadcasts an inquiry packet to search for adjacent Bluetooth devices at step 60. The Bluetooth module of the mobile communication terminal receives FHS packets, transmitted by adjacent Bluetooth devices as inquiry responses, at step 70. The agent of the mobile communication terminal receives information about N (arbitrary natural number) Bluetooth devices (for example, remote names) through the received FHS packets. Thereafter, the Bluetooth module of the mobile communication terminal attempts pairing with respect to each of the N found Bluetooth devices at step 80. During the pairing procedure, a counterpart Bluetooth device requests the input of PIN information. Therefore, the mobile communication terminal, having attempted connection, transmits the phone number that is input by the user (the phone number of a desired counterpart) to the found Bluetooth device during the pairing procedure. The counterpart Bluetooth device compares the input phone number (MIN) with the password (PIN) thereof during the pairing procedure at step 90. If the MIN does not coincide with the PIN as a result of comparison, the counterpart Bluetooth device transmits a notification of dissimilarity between the MIN and the PIN to the mobile communication terminal having attempted connection. Then, the mobile communication terminal, having attempted connection, attempts pairing with respect to a subsequent Bluetooth device. Meanwhile, if the input phone number (MIN) coincides with the PIN information, the counterpart Bluetooth device establishes an Asynchronous Connectionless (ACL) link with the mobile communication terminal having requested connection at step 100. Accordingly, the mobile communication terminal having attempted connection can establish a Bluetooth link with a desired mobile communication terminal. This pairing procedure is sequentially and repeatedly performed with respect to found Bluetooth devices until a Bluetooth device having PIN information coinciding with the input phone number (MIN) is found. If link establishment has failed even though the pairing procedure has been performed with respect to all found Bluetooth devices, the pairing procedure is terminated. In the meantime, during the pairing process, a Bluetooth device having PIN information coinciding with the phone number (MIN) can notify a user of the connection before establishing an ACL link. FIG. 5 is a flow diagram showing a method of connection between mobile communication terminals according to a first embodiment of the present invention. If a user desires to connect to a mobile communication terminal having a Bluetooth module, the Man-Machine Interface (MMI) of the mobile communication terminal receives the phone number (MIN) of a desired counterpart mobile communication terminal from the user at step S10. If the phone number (MIN) of the counterpart mobile communication terminal is received, an agent requests the Bluetooth module to perform an inquiry procedure at step S20. Accordingly, the Bluetooth module broadcasts an inquiry packet at step S30. First to Nth Bluetooth devices, having received the inquiry packet, transmit FHS packets in response to the inquiry packet at step S40. The agent can collect information about N adjacent Bluetooth devices (for example, remote names, etc.) by receiving the FHS response packets. The agent transmits the phone number (MIN) of the counterpart terminal, which has been received from the user, to the Bluetooth module without notifying the user of information collected from the adjacent Bluetooth devices, thus requesting pairing. The Bluetooth module sequentially attempts pairing with respect to N Bluetooth devices using the received phone number (MIN) at steps S50 and S70. During the pairing procedure, since Bluetooth devices other than a mobile communication terminal desired by the user have passwords thereof (PIN) that do not coincide with the received phone number (MIN), the establishment of an ACL link has failed at step S60. If pairing has failed, the agent repeatedly performs the same pairing procedure with respect to a subsequent Bluetooth device. If a mobile communication terminal having a password (PIN) coinciding with the received phone number (MIN) through this procedure is found, pairing has succeeded at step S80, and an ACL link is established between both mobile communication terminals. Preferably, the agent notifies counterpart users of connection, and establishes an ACL link through the Bluetooth module when the users accept the connection.
[Mode for Invention] FIG. 6 is a flowchart of a method of connection between mobile communication terminals having Bluetooth modules according to a second embodiment of the present invention. In the above-described first embodiment of the present invention, only the PIN information about a Bluetooth module included in a mobile communication terminal is set to be the same as a phone number (MIN). For this reason, in the first embodiment, a pairing procedure must be sequentially performed with respect to Bluetooth devices found through an inquiry procedure until a Bluetooth device having PIN coinciding with an input phone number (MIN) is found. If the number of Bluetooth devices found through an inquiry procedure is not large, not a lot of time is required to perform a pairing procedure, while if the number of found Bluetooth devices is large, a lot of time may be required to actually perform a Bluetooth connection to a desired counterpart terminal. Therefore, in a second embodiment of the present invention, the remote name of a Bluetooth module as well as the PIN information thereof is also set to be the same as a phone number (MIN). According to the second embodiment of the present invention, a pairing procedure is performed with respect only to a Bluetooth device having a remote name coinciding with the input phone number (MIN) among adjacent Bluetooth devices obtained through inquiry. As a result, the time required to connect to a desired counterpart mobile communication terminal can be shortened. This operation is described in detail with reference to FIG. 6. First, similar to the first embodiment, a phone number (MIN), which has been input at the time of inputting MIN in the mobile communication terminal's own number input mode, is automatically stored, by an agent, in the memory of a Bluetooth module as a remote name and a PIN value, respectively. A user inputs the phone number of a desired counterpart mobile communication terminal through a user interface. If the phone number of the desired counterpart terminal has been input by the user at step S101 , a mobile communication terminal, having attempted connection, broadcasts an inquiry packet so as to search for adjacent Bluetooth devices at step S102. The adjacent Bluetooth devices, having received the inquiry packet, transmit response packets to the inquiry, in detail, to Bluetooth devices having requested Bluetooth information thereof (for example, a remote name) at step S103. If the mobile communication terminal, having attempted connection, receives a response packet from each adjacent Bluetooth device, the mobile communication terminal compares a Bluetooth remote name contained in the response packet with the input phone number (MIN) at step S104. The mobile communication terminal, having attempted connection, determines whether a Bluetooth device, having a remote name coinciding with the input phone number (MIN), exists, through comparison. As a result of determination, if a Bluetooth device having a remote name coinciding with the input phone number (MIN) is found at step S105, the mobile communication terminal having attempted connection performs pairing with respect only to the Bluetooth device (counterpart mobile communication terminal) having a remote name coinciding with the phone number (MIN). During the pairing procedure, since the password (PIN) of the Bluetooth device is set to the phone number (MIN) of the mobile communication terminal as described above with reference to the first embodiment, the mobile communication terminal having attempted the connection transmits the phone number (MIN) of the counterpart mobile communication terminal, which has been input by the user, to the Bluetooth module of the counterpart mobile communication terminal, thus performing pairing at step S106. If the pairing procedure has been successfully performed, an ACL link is established between the Bluetooth module of the mobile communication terminal, having attempted connection, and the Bluetooth module of the counterpart mobile communication terminal at step S107. Accordingly, both mobile communication terminals can communicate with each other. If an ACL link release request is received in a connection state at step S108, the established link is released and the process is terminated. Meanwhile, if response packets are received from adjacent Bluetooth devices, but a Bluetooth device having a remote name coinciding with the input phone number (MIN) is not found at step S105, the mobile communication terminal having attempted connection notifies the user of a failed connection attempt at step S109, and the process is terminated.
[Industrial Applicability] Meanwhile, the present invention can transmit or receive various network games and information if the connection to a desired counterpart has been completed through the above process. However, in order to execute applications, such as shared network games, between mobile communication terminals, the mobile communication terminals must have the same applications. For this operation, in the present invention, a terminal, requesting connection, transmits URL information enabling the download of an application ID and a corresponding application to a counterpart terminal through the execution of the application. The counterpart terminal determines whether it has the corresponding application on the basis of the application ID, and accesses a server having the URL through the wireless Internet to download the corresponding application if it does not have the application. Those skilled in the art will appreciate that the present invention can be implemented in other detailed embodiments, without departing from the technical spirit and essential features of the invention. Therefore, it should be understood that the above-described embodiments are only exemplary in all aspects, not restrictive. The scope of the present invention should be defined in the accompanying claims rather than the detailed description. Various modifications, additions and substitutions derived from the meaning and scope of the accompanying claims and equivalent concept thereof should be interpreted as being included in the scope of the present invention.

Claims

[CLAIMS] [Claim 1 ] A method of connection between mobile communication terminals having Bluetooth modules, comprising: a first step of setting a password (Personal Identification Number: PIN) of a Bluetooth module of a mobile communication terminal to a phone number (Mobile Identification Number: MIN) of the mobile communication terminal; a second step of broadcasting an inquiry packet to search for adjacent Bluetooth devices if a phone number (MIN) of a desired counterpart mobile communication terminal has been input; a third step of receiving response packets from the adjacent Bluetooth devices in response to the inquiry packet; a fourth step of transmitting the phone number (MIN), input at the second step, to a corresponding adjacent Bluetooth device that has transmitted the response packet, thus attempting pairing; a fifth step of, if a notification of dissimilarity between the phone number (MIN), transmitted at the time of attempting pairing, and PIN information of the adjacent Bluetooth device is provided by the adjacent Bluetooth device, repeatedly performing the fourth step with respect to another Bluetooth device that has transmitted the response packet; and a sixth step of, if a notification of coincidence between the phone number (MIN), transmitted at the time of attempting pairing, and PIN information of the Bluetooth device, is provided by the Bluetooth device, establishing an Asynchronous ConnectionLess (ACL) link with the Bluetooth device having provided the notification of coincidence.
[Claim 2] The connection method according to claim 1 , wherein the sixth step is performed so that a counterpart Bluetooth device notifies a user of Bluetooth connection before the ACL link is established, and establishes the ACL link if the user accepts the connection.
[Claim 3] The connection method according to claim 1 or 2, wherein the fourth step is performed so that the mobile communication terminal, having attempted connection, does not show information about the adjacent Bluetooth devices, contained in the response packets, to the user, but a pairing procedure is performed by an agent.
[Claim 4] The connection method according to claim 3, wherein the first step is performed so that the setting of PIN is achieved by automatically storing the phone number (MIN), which has been input at the time of inputting the MIN in the mobile communication terminal's own number input mode, in memory of the Bluetooth module as the PIN value through an agent participating in the PIN setting between a user interface module and the Bluetooth module of the mobile communication terminal.
[Claim 5] A method of connection between mobile communication terminals having Bluetooth modules, comprising: a first step of setting both a remote name and a password (Personal Identification Number: PIN) of a Bluetooth module of a mobile communication terminal to a phone number (Mobile Identification Number: MIN) of the mobile communication terminal; a second step of broadcasting an inquiry packet to search for adjacent Bluetooth devices if a phone number (MIN) of a desired counterpart mobile communication terminal has been input; a third step of receiving response packets from the adjacent Bluetooth devices in response to the inquiry packet; a fourth step of determining whether a Bluetooth device having a remote name coinciding with the phone number (MIN), input at the second step, exists among the adjacent Bluetooth devices that have transmitted the response packets; a fifth step of, if a Bluetooth device having a remote name coinciding with the input phone number (MIN) exists at the fourth step, transmitting the phone number (MIN), input at the second step, to the Bluetooth device, thus attempting pairing; and a sixth step of, if a notification of coincidence between the phone number (MIN), transmitted at the time of attempting pairing, and PIN information of the Bluetooth device, is provided by the Bluetooth device, establishing an Asynchronous Connectionless (ACL) link with the Bluetooth device.
[Claim 6] The connection method according to claim 5, wherein the sixth step is performed so that the Bluetooth device having a remote name coinciding with the input phone number notifies a user of Bluetooth connection before the ACL link is established, and establishes the ACL link if the user accepts the connection.
[Claim 7] The connection method according to claim 5 or 6, wherein the first step is performed so that setting of the remote name and PIN is achieved by automatically storing the phone number (MIN), which has been input at the time of inputting the MIN in the mobile communication terminal's own number input mode, in memory of the Bluetooth module as the remote name and the PIN value through an agent.
PCT/KR2005/001949 2004-06-25 2005-06-23 Method of connecting mobile comunication terminals having bluetooth module WO2006001640A1 (en)

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