JP5310580B2 - Communication terminal - Google Patents

Communication terminal Download PDF

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Publication number
JP5310580B2
JP5310580B2 JP2010013476A JP2010013476A JP5310580B2 JP 5310580 B2 JP5310580 B2 JP 5310580B2 JP 2010013476 A JP2010013476 A JP 2010013476A JP 2010013476 A JP2010013476 A JP 2010013476A JP 5310580 B2 JP5310580 B2 JP 5310580B2
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communication
wireless communication
pairing
request
opposite device
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JP2010013476A
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JP2011151745A (en
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俊哉 田村
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富士通モバイルコミュニケーションズ株式会社
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Priority claimed from US12/853,451 external-priority patent/US20110183614A1/en
Publication of JP2011151745A publication Critical patent/JP2011151745A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To properly skip a pairing process in relation to an already-registered oppositely arranged apparatus even, if negotiations related to switching of a communication system is performed, using a first communication section. <P>SOLUTION: The communication terminal can be controlled, such that when the communication terminal and an opposite apparatus come close to each other, a communication system is switched from a first radio communication section to a second radio communication section, based on a communication system changeover request; when the second radio communication section receives a connection request from the opposite apparatus, pairing with the opposite apparatus is controlled by the second radio communication section, based on apparatus information and security information from the opposite apparatus acquired by using the first radio communication section; when the opposite apparatus of which the communication system changeover request has been permitted is determined to be an already-registered opposite apparatus, a pairing request included in the notified communication system switching request is discarded, to prevent pairing including an authentication process from being executed by the second radio communication section. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a communication terminal, and more particularly to a communication terminal that can establish a connection by pairing with a counter device.

  In recent years, for example, Bluetooth (registered trademark) is known as a wireless communication technology that can be applied to communication terminals including mobile phones. By using Bluetooth wireless communication technology, a communication terminal including a mobile phone can transfer audio data to an opposite device such as a headset without using an audio cable. As a specification when a communication terminal including a mobile phone performs pairing using a Bluetooth wireless communication technology, Bluetooth Specification version 2.1 + EDR (see Non-Patent Document 1) defined by Bluetooth SIG is known. On the other hand, NFC (Near Field Communication) Forum is a specification related to negotiation for determining other wireless communication methods to be handed over by NFC (Near Field Communication) for communication terminals including mobile phones. Connection Handover Technical Specification (see Non-Patent Document 2) is known. NFC is an international standard for short-range wireless communication technology performed at a distance of about 10 to 30 cm.

  A communication terminal that complies with the two specifications of Bluetooth Specification version 2.1 + EDR and Connection Handover Technical Specification has at least a communication unit applicable to the Bluetooth wireless communication method and a communication unit applicable to the NFC wireless communication method. Therefore, it is possible to perform handover (switching between communication methods) between two different communication methods.

Bluetooth Specification version 2.1 + EDR (Bluetooth SIG) Connection Handover Technical Specification (NFC Forum)

  The Bluetooth Specification version 2.1 + EDR defines a pairing method called Secure Simple Pairing (SSP). As one of the SSP pairing methods, a pairing method called Out Of Band (OOB) is defined. In the case of the pairing method called OOB, the communication terminal uses the device information and security information of the opposite device required for pairing with the opposite device that performs short-range wireless communication using Bluetooth. A mechanism for obtaining data from the opposite device using a communication method (for example, an NFC wireless communication method) is defined.

  Communication terminals that comply with the two specifications of Bluetooth Specification version 2.1 + EDR and Connection Handover Technical Specification are different from NFC communication systems based on negotiations for handover (switching communication systems) using NFC. Hand over to Bluetooth, which is a communication method. At this time, the user negotiates for handover using the NFC to the communication terminals by bringing the two communication terminals close to each other to such an extent that NFC communication is possible, or by superimposing the two communication terminals on each other. The Bluetooth pairing process can be started. The operation of bringing the two communication terminals closer to each other (touching) in this way is a very rational method as a method for initiating a pairing request in consideration of usability.

  However, the above-described operation of bringing two communication terminals closer to each other (touching) is intended to start a general connection process based on a connection request by Bluetooth rather than only a pairing process by Bluetooth. Is interpreted. Therefore, the communication terminal may request another pairing for another communication terminal that has already been paired. If the pairing process is executed again at the communication terminal, the name of the opposite device (other communication terminal) that the user dared to change using the communication terminal (nickname) is the inorganic device name of the original opposite device There was a problem of returning to. However, in any of the two specifications of Bluetooth Specification version 2.1 + EDR and Connection Handover Technical Specification, there is no provision for actual operation for solving such a problem.

  The present invention has been made in view of such a situation, and even if the negotiation for switching the communication method is performed using the first communication unit, the pairing process is preferably performed for the already registered opposite device. An object is to provide a communication terminal that can be omitted.

  In order to solve the above-described problem, the communication terminal of the present invention includes a first wireless communication unit that wirelessly communicates between the communication terminal and the opposite device, and a second wireless communication that communicates between the communication terminal and the opposite device. The communication method is switched from the first wireless communication means to the second wireless communication means when the wireless communication means, the communication terminal, and the opposite device are close to each other within a range where the first wireless communication means can perform wireless communication. When the first wireless communication means receives the communication method switching request from the opposite device, the first wireless communication means is used to respond to the opposite device to the communication method switching request, and based on the communication method switching request. , A communication mode switching control unit that switches the communication mode from the first wireless communication unit to the second wireless communication unit, and a connection request received from the opposite device received by the second wireless communication unit, and a connection request from the opposite device Vs. Based on the device information and security information from the opposite device acquired using the first wireless communication unit and responding using the second wireless communication unit, The pairing control unit that controls pairing between devices and the opposite device that has permitted the communication mode switching request is already registered based on the pairing request corresponding to the communication mode switching request notified from the communication mode switching control unit If it is determined whether the other device has already been registered, the communication method switching request notified from the communication method switching control means An authentication control means for discarding the corresponding pairing request and controlling the pairing control means so as not to execute the pairing including the authentication process by the second wireless communication means. The features.

  According to the present invention, the pairing process can be suitably omitted with respect to the already registered opposite device even if the negotiation related to the switching of the communication method is performed using the first communication unit.

The block diagram which shows the internal structure of the mobile telephone applicable to the communication terminal which concerns on this invention. (A) to (C) are communication using the NFC communication unit between the mobile phone 1-1 and the mobile phone 1-2 according to the present invention in the case of a pairing method called Out Of Band (OOB). FIG. The flowchart explaining the pairing control process in the mobile telephone 1-1 of FIG. 1 in case the mobile telephone 1-1 and the mobile telephone 1-2 perform pairing using a Bluetooth communication part. FIG. 3 is a sequence diagram showing specific processing between the mobile phone 1-1 (own device) and the mobile phone 1-2 (opposite device) when executing the pairing control processing described with reference to the flowchart of FIG. . The figure which shows the opposing apparatus information table with which the information regarding the opposing apparatus already paired using the mobile telephone 1-1 and the Bluetooth communication part 25 was matched.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an internal configuration of a mobile phone 1 applicable to a communication terminal according to the present invention. The cellular phone 1 includes a transmission / reception antenna 11, a transmission / reception duplexer 12, a radio transmission / reception unit 13, a signal processing unit 14, a data processing unit 15, a PCM codec 16, a reception amplifier 17, a receiver 18, a transmission amplifier 19, a microphone 20, and a control unit. 21, an operation unit 22, a display unit 23, a content processing unit 24, a Bluetooth communication unit 25, an NFC communication unit 26, and a storage unit 27.

  The transmission / reception antenna 11 transmits radio waves of the mobile communication system to which the mobile phone 1 corresponds, and receives radio waves of the mobile communication system to which the mobile phone 1 corresponds. The transmission / reception duplexer 12 includes a circulator, a duplexer, and the like, and transmits the radio wave received (received) by the transmission / reception antenna 11 to the wireless transmission / reception unit 13. In addition, the transmission / reception duplexer 12 sends the signal input from the wireless transmission / reception unit 13 to the transmission / reception antenna 11. The radio transmission / reception unit 13 includes a band pass filter, a gain adjustment circuit, an A / D converter, and the like, receives a radio signal having a carrier frequency instructed from the control unit 21, and outputs a local oscillation signal output from the frequency synthesizer. Mixing and frequency conversion (down-conversion) into an intermediate frequency signal, and orthogonal demodulation of the down-converted intermediate frequency signal generates a reception baseband signal. The band pass filter of the radio transmission / reception unit 13 receives a radio signal transmitted from a base station belonging to the mobile communication system, and removes noise outside the desired band from the received signal. Further, the gain adjustment circuit of the wireless transmission / reception unit 13 adjusts the signal amplitude to be handled by an A / D converter provided at the subsequent stage of the gain adjustment circuit. The A / D converter of the wireless transmission / reception unit 13 converts the signal that has passed through the band-pass filter into a baseband digital signal.

  The signal processing unit 14 performs baseband processing on the reception baseband signal (reception baseband digital signal) output from the wireless transmission / reception unit 13. The data processing unit 15 includes, for example, a DSP (Digital Signal Processor), and converts the baseband signal that has been baseband processed by the signal processing unit 14 into data and voice. That is, the data processing unit 15 first separates the received packet data for each medium, and performs a decoding process on the separated data for each medium. Specifically, when the received packet data includes audio data, for example, the data processing unit 15 decodes the audio data using a speech codec. In addition, when the received packet data includes moving image data, the data processing unit 15 decodes the moving image data using a video codec. Furthermore, when the received packet data is download content, the data processing unit 15 expands the download content. The digital audio signal obtained by the decoding process is PCM decoded by the PCM codec 16, amplified by the reception amplifier 17, and output from the receiver 18. On the other hand, the digital moving image signal decoded by the video codec is supplied to the display unit 23 via the control unit 21 and displayed.

  The wireless transmission / reception unit 13 and the signal processing unit 14 perform a series of processing such as transmission baseband processing and wireless processing for transmitting communication data to a base station belonging to the mobile communication system.

  The control unit 21 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU of the control unit 21 executes various processes according to various application programs and control programs including an operating system (OS) loaded from the storage unit 27 to the RAM from the program stored in the ROM, and various processes. The mobile radio terminal 1 is comprehensively controlled by generating a control signal and supplying it to each unit. The RAM appropriately stores data necessary for the CPU to execute various processes. Specifically, the control unit 21 has a control function for realizing voice communication and data communication by the mobile communication system. Further, when performing communication control, the control unit 21 performs a transmission / reception antenna 11, a radio transmission / reception unit 13, a signal processing unit 14, a data processing unit 15, a PCM codec 16, a reception amplifier 17, a receiver 18, a transmission amplifier 19, and a microphone. Control communication processing using 20 or the like. On the other hand, the control unit 21 controls the UI processing using the operation unit 22, the display unit 23, the storage unit 27, a clock circuit (not shown), and the like.

  For example, when controlling the music player, the content processing unit 24 once decodes audio data encoded by an encoding method such as AAC or MP3 using a decoding method corresponding to the encoding method. Then, re-encoding processing or the like is performed by another encoding method (for example, SBC (Sub Band Coding)). The Bluetooth communication unit 25 is one of short-range wireless communication units included in the mobile phone 1 and includes, for example, a module that performs wireless communication using Bluetooth (registered trademark). The Bluetooth communication unit 25 performs wireless communication with a headset or another mobile phone 1 that exists in the vicinity of the mobile phone 1. Of course, wireless communication other than Bluetooth (for example, infrared communication) may be used.

  The NFC communication unit 26 is one of the short-range wireless communication units included in the mobile phone 1 and includes a module applicable to NFC, which is an international standard for short-range wireless communication technology performed at a distance of about 10 to 30 cm. The NFC communication unit 26 functions as a non-contact IC card and can be used as, for example, a traffic ticket or an entry / exit management card. The mobile phone 1 is brought close to an IC reader / writer (not shown), and the IC reader / writer When the electromagnetic wave radiated from is received, wireless communication with the IC reader / writer is performed using various information accordingly. 1 can perform data communication with another mobile phone 1 including the NFC communication unit 26 using NFC. In the case of short-range wireless communication using the NFC communication unit 26, it is necessary to bring the NFC communication units 26 closer to each other, so that the security confirmation procedure is simplified.

  The storage unit 27 includes, for example, a flash memory element that is an electrically rewritable and erasable nonvolatile memory, an HDD (Hard Disc Drive), and the like, and includes various application programs executed by the CPU of the control unit 21 and various types. And a control program and control data of the mobile phone 1 are stored. In addition to this, the storage unit 27 appropriately stores telephone directory data in which names and telephone numbers are associated, data acquired by data communication, and downloaded data. The mobile phone 1 also includes a power supply circuit that generates a predetermined operating power supply voltage Vcc based on the output of the battery and supplies it to each circuit unit, and a clock circuit (timer) that measures the current time.

  Note that the cellular phone 1 includes a receiving amplifier 17, a receiver 18 for outputting a received voice signal, a transmission amplifier 19, a microphone 20 for inputting a transmitted voice signal, an operation unit 23 for receiving a request from a user, and received data. A display unit 24 is provided for displaying an image based thereon.

  Here, the mobile phone 1 according to the present invention includes the two short-range wireless communication units of the Bluetooth communication unit 25 and the NFC communication unit 26 as described above. When transmitting / receiving a large amount of data to / from another mobile phone 1 (opposite device) that is similarly provided with two short-range wireless communication units, the NFC communication unit 26 of each other is used first. Device information (information including device address etc.) is exchanged by negotiation. Next, the mobile phone 1 performs pairing including authentication processing by the mutual Bluetooth communication unit 25 using the device information of the other mobile phone 1 acquired by negotiation via the NFC communication unit 26. Thereafter, the mobile phone 1 transmits / receives a large amount of data to / from another mobile phone 1 using the Bluetooth communication unit 25. Here, it is possible to perform short-range wireless communication using the NFC communication unit 26 in which the security check procedure is simplified in the first stage, and then perform data communication at a higher speed than NFC communication in the second stage. Switching to the short-range wireless communication using the Bluetooth communication unit 25 (taking over) is defined as “handover”. That is, “handover” means switching between short-range wireless communication systems.

  The device information of the other mobile phone 1 acquired by the negotiation via the NFC communication unit 26 is included in the handover request from the other mobile phone 1 received at the time of negotiation via the NFC communication unit 26. Yes. When the mobile phone 1 according to the present invention receives a handover request from another mobile phone 1, the Bluetooth communication unit 25 performs pairing including authentication processing. Therefore, this handover request is not only a request for switching the short-range wireless communication system but also a pairing request using the Bluetooth communication unit 25. In that sense, the handover request is a request directed to the pairing performed after that from the intention of the user who performs the NFC touch, and more precisely, using the NFC communication unit 26 between the two devices. This is a request exchanged at the time of handover negotiation to be performed and includes device information unique to the device.

  When the mobile phone 1 according to the present invention receives a handover request from another mobile phone 1, basically, the Bluetooth communication unit 25 performs pairing including authentication processing. However, even when the mobile phone 1 according to the present invention receives a handover request from another mobile phone 1, when the mobile phone 1 receives a handover request from a registered opposite device, The pairing request (pairing request corresponding to the handover request) included in the handover request from the device is discarded, and pairing including authentication processing is not executed by the Bluetooth communication unit 25. The control unit 21 includes a communication system switching control unit 31, a pairing control unit 32, and an authentication control unit 33 as characteristic functions according to the present invention. The communication system switching control unit (handover control unit) 31 of the control unit 21 is necessary for pairing with an opposite device (such as the mobile phone 1) that performs short-range wireless communication using the Bluetooth communication unit 25. A process of acquiring device information and security information of the opposite device from the opposite device using a communication method other than Bluetooth (for example, an NFC wireless communication method) is controlled. Specifically, the communication system switching control unit 31 controls the NFC communication unit 26 and performs the NFC communication unit 26 when pairing with the opposite device that performs short-range wireless communication using the Bluetooth communication unit 25. Is used to negotiate with another mobile phone 1 that exists in the vicinity of the mobile phone 1, receives a handover request from the other mobile phone 1 at the time of this negotiation, and receives device information (device address, etc.) specific to each other's mobile phone 1 Information) and security information are negotiated, a communication method to be switched from the NFC communication method (for example, a communication method by the Bluetooth communication unit 25) is determined, and switching (handover) to the communication method to be switched is performed. Control. In addition, the communication method switching control unit 31 notifies the authentication control unit 33 of a pairing request (a pairing request corresponding to the handover request) included in the handover request. That is, the communication system switching control unit 31 switches the communication system from the communication system by the NFC communication unit 26 to the communication system by the Bluetooth communication unit 25 based on the handover request, and another mobile phone 1 to which the handover request is permitted. 2 is notified to the authentication control unit 33 that pairing is started.

  The pairing control unit 32 uses the Bluetooth communication unit 25 to control pairing with an opposite device (another mobile phone 1) that performs short-range wireless communication. This pairing is a pairing method called Secure Simple Pairing (SSP), for example.

  On the basis of the pairing request included in the handover request notified from the communication system switching control unit 31, the authentication control unit 33 has already registered (pairing) the opposing device (other mobile phone 1) that has permitted the handover request. ) It is determined whether or not the device is a counter device. When the authentication control unit 33 determines that the opposite device (other mobile phone 1) that has permitted the handover request is a registered (paired) opposite device, the hand notified from the communication method switching control unit 31 The pairing request included in the over request is discarded, and the pairing request included in the handover request notified from the communication system switching control unit 31 is not supplied to the pairing control unit 32, and the Bluetooth communication unit 25 performs authentication processing. The pairing control unit 32 is not allowed to execute the pairing including. On the other hand, when the authentication control unit 33 determines that the opposing device (other mobile phone 1) that has permitted the handover request is not already registered (paired), it is notified from the communication method switching control unit 31. The pairing request included in the handover request notified from the communication method switching control unit 31 is supplied to the pairing control unit 32 without being discarded, and authenticated by the Bluetooth communication unit 25 The pairing control unit 32 is caused to execute pairing including processing.

  2A to 2C show an NFC communication unit 26 between the mobile phone 1-1 and the mobile phone 1-2 according to the present invention in the case of a pairing method called Out Of Band (OOB). It shows the state of communication used. As shown in FIGS. 2 (A) and 2 (B), when the mobile phone 1-1 incorporating the NFC communication unit 26 approaches the vicinity of the mobile phone 1-2, the mobile phone 1- Electromagnetic induction is generated by the electromagnetic waves radiated from 1, and the cellular phone 1-2 uses the current generated thereby to exchange data with the cellular phone 1-1 by short-range wireless communication (NFC communication). Do. Of course, the mobile phone 1-1 may be brought closer to the mobile phone 1-2, and conversely, the mobile phone 1-2 may be brought closer to the mobile phone 1-1. As shown in FIG. 2C, when NFC communication is performed between two mobile phones, the two mobile phones 1 may be overlapped with each other. Note that “NFC touch” is defined as bringing two mobile phones close to each other so that NFC communication with each other is possible, and overlapping two mobile phones 1 with each other.

  With reference to the flowchart of FIG. 3, the pairing control process in the mobile phone 1-1 of FIG. 1 when the mobile phone 1-1 and the mobile phone 1-2 perform pairing using the Bluetooth communication unit 25 will be described. To do. This pairing control process is executed by the mobile phone 1-1 when an NFC touch is performed between the two mobile phones when the mobile phone 1-1 is waiting for a Bluetooth communication connection. FIG. 4 shows a specific example between the mobile phone 1-1 (own device) and the mobile phone 1-2 (opposite device) when executing the pairing control process described with reference to the flowchart of FIG. Represents a sequence of various processes.

  In step S <b> 1, when an NFC touch is performed between the mobile phone 1-1 and the mobile phone 1-2, the communication method switching control unit 31 of the mobile phone 1-1 uses the NFC communication unit 26. Negotiation with another mobile phone 1-2 existing in the vicinity of is started. The NFC communication unit 26 of the mobile phone 1-1 receives a handover request from the other mobile phone 1-2 during negotiation with the other mobile phone (step S31 in FIG. 4). This handover request includes device information (information including a device address) unique to the other mobile phone 1-2 and security information. The device information unique to the other mobile phone 1-2 is “BD_ADDR = YYYYYY”. On the other hand, the device information unique to the mobile phone 1-1 as the own device is “BD_ADDR = XXXXXX”.

  In step S2, the communication method switching control unit 31 of the mobile phone 1-1 receives device information and security information specific to the other mobile phone 1-2 from the handover request received by the NFC communication unit 26. get. The communication method switching control unit 31 of the mobile phone 1-1 supplies the acquired device information and security information specific to the other mobile phone 1-2 to the pairing control unit 32. In step S3, the communication system switching control unit 31 of the mobile phone 1-1 determines the communication system to be switched from the NFC communication system to the communication system by the Bluetooth communication unit 25, and uses the NFC communication unit 26 to perform the handover request. A response (handover response) to the other mobile phone 1-2 is transmitted (step S32 in FIG. 4).

  In step S4, the communication method switching control unit 31 notifies the Bluetooth communication unit 25 of a handover request (request to switch the communication method from the communication method by the NFC communication unit 26 to the communication method by the Bluetooth communication unit 25). The communication method is switched from the NFC communication unit 26 to the Bluetooth communication unit 25 for pairing using the communication unit 25 (step S33 in FIG. 4). At this time, when the mobile phone 1-2 which is the opposite device receives a response (handover response) to the handover request transmitted from the mobile phone 1-1 using the NFC communication unit 26, the mobile phone 1-2 Similarly to the mobile phone 1-1, the telephone 1-2 notifies the Bluetooth communication unit 25 of the handover request, and for pairing with the mobile phone 1-1 using the Bluetooth communication unit 25. The communication method is switched from the NFC communication unit 26 to the Bluetooth communication unit 25 (step S34 in FIG. 4). In step S5, the communication method switching control unit 31 of the mobile phone 1-1 notifies the authentication control unit 33 of the pairing request included in the handover request. That is, the communication system switching control unit 31 switches the communication system from the communication system by the NFC communication unit 26 to the communication system by the Bluetooth communication unit 25 based on the handover request. -2 is notified to the authentication control unit 33 to start pairing.

  In step S6, the authentication control unit 33 permitted the handover request based on the pairing request (pairing request corresponding to the handover request) included in the handover request notified from the communication method switching control unit 31. It is determined whether or not the opposing device (other mobile phone 1) is a registered (paired) opposing device. Specifically, in the other pairing control process before the pairing control process of FIG. 3 is executed, the mobile phone 1-1 is associated with the device information of the opposite device that requests pairing in the other pairing control process. It is assumed that another nickname (for example, a nickname of Zanzi Valve Lou) has already been registered on the mobile phone 1-1 side as a name related to the opposite device. FIG. 5 shows a counter device information table in which information on a counter device already paired using the mobile phone 1-1 and the Bluetooth communication unit 25 is associated. This opposing device information table is stored in the storage unit 27. In the case of FIG. 5, the device information “BD_ADDR = YYYYYY” is associated with the name “Zanzi Valve Lou” of the opposite device, and the Bluetooth profile (HFP, A2DP and AVRCP) are associated with each other. Note that security information necessary for authentication processing when establishing a connection with the opposite device already registered (paired) on the mobile phone 1-1 side is registered in association with the device information of the opposite device. .

  In addition, in the pairing request (pairing request corresponding to the handover request) included in the handover request notified from the communication method switching control unit 31, another mobile phone 1 as the opposite device that has permitted the handover request. -2 includes unique device information (device address). Therefore, the authentication control unit 33 reads the opposite device information table from the storage unit 27, refers to the read opposite device information table, and includes device information included in the pairing request notified from the communication method switching control unit 31. Based on the above, it is determined whether or not the opposing device (another mobile phone 1) that has permitted the handover request is a registered (paired) opposing device.

  If the authentication control unit 33 determines in step S6 that the opposite device (other mobile phone 1) that has permitted the handover request is a registered (paired) opposite device, the authentication control unit 33 In step S7, the unit 33 discards the pairing request (pairing request corresponding to the handover request) included in the handover request notified from the communication method switching control unit 31, and is notified from the communication method switching control unit 31. The pairing request included in the handover request is not supplied (notified) to the pairing control unit 32 (step S35 in FIG. 4). Thereby, even if the cellular phone 1-1 subsequently receives a connection request from another cellular phone 1-2 as the opposite device, the Bluetooth communication unit 25 does not perform pairing including authentication processing. In step S8, the control unit 21 refers to the read opposite device information table and prepares for the handover request in preparation for a connection request from another mobile phone 1-2 as the opposite device that has permitted the handover request. All the Bluetooth profiles executed in the past that are associated in advance with another mobile phone 1-2 as the opposite device that has been permitted are activated (step S35 in FIG. 4). As a result, for the opposite device that has already been registered (paired), all previously executed profiles can be started until the connection request from the opposite device is received. Wireless communication using the Bluetooth communication unit 25 can be started seamlessly from an NFC touch between the mobile phone 1-2 and the mobile phone 1-1 which is the own device. Of course, it is not necessary to start all of the Bluetooth profiles executed in the past that are associated with the other mobile phone 1-2 as the opposite device that has permitted the handover request. Department may be sufficient.

  Thereafter, the cellular phone 1-2 transmits a connection request for requesting establishment of a Bluetooth connection with the cellular phone 1-1 to the cellular phone 1-1 via the Bluetooth communication unit 25 (step S36 in FIG. 4). . In step S <b> 9, the pairing control unit 33 of the mobile phone 1-1 receives a connection request from the mobile phone 1-2 using the Bluetooth communication unit 25. In step S10, the pairing control unit 33 of the mobile phone 1-1 responds to the connection request using the Bluetooth communication unit 25 in order to start Bluetooth communication between the two mobile phones 1 based on the received connection request. Is transmitted to the mobile phone 1-2 (step S37 in FIG. 4). In step S11, the pairing control unit 33 of the mobile phone 1-1 uses the Bluetooth communication unit 25 based on the device information and security information from the other mobile phone 1-2 acquired in step S2 to use the other mobile phone. When establishing a connection with the opposite device (other mobile phone 1-2) already registered (paired) on the mobile phone 1-1 side without performing pairing with the mobile phone 1-1. Based on security information necessary for authentication processing (previously registered in association with the corresponding device information table), authentication processing is performed using the Bluetooth communication unit 25, and a handover request with the mobile phone 1-1 is permitted. A Bluetooth connection is established with the other mobile phone 1-2. Thereby, the communication terminal which concerns on this invention can prevent execution of a useless pairing process again, and also the name of the opposing apparatus (other communication terminal) which the user dared to change using the communication terminal ( It is possible to prevent (nickname) from returning to the inorganic device name of the original counter device (holding the registered name). As the name of the opposite device, the registered name is displayed on the display unit 23.

  On the other hand, in step S6, the authentication control unit 33 determines that the opposing device (another mobile phone 1) that has permitted the handover request is not a registered (paired) opposing device (an unregistered opposing device). In this case, in step S12, the authentication control unit 33 does not discard the pairing request included in the handover request notified from the communication method switching control unit 31, but changes to the handover request notified from the communication method switching control unit 31. The included pairing request is supplied (notified) to the pairing control unit 32. Thereby, the mobile phone 1-1 can execute pairing including authentication processing by the Bluetooth communication unit 25 by receiving a connection request from the other mobile phone 1-2 as the opposite device thereafter. Thereafter, the cellular phone 1-2 transmits a connection request for requesting establishment of a Bluetooth connection with the cellular phone 1-1 to the cellular phone 1-1 via the Bluetooth communication unit 25 (step S36 in FIG. 4). . In step S <b> 13, the pairing control unit 33 of the mobile phone 1-1 receives a connection request from the mobile phone 1-2 using the Bluetooth communication unit 25. In step S14, the pairing control unit 33 of the mobile phone 1-1 uses the Bluetooth communication unit 25 to start the pairing process between the two mobile phones 1 based on the received connection request. The response is transmitted to the mobile phone 1-2 (step S37 in FIG. 4). In step S15, the pairing control unit 33 of the mobile phone 1-1 uses the Bluetooth communication unit 25 based on the device information and security information from the other mobile phone 1-2 acquired in step S2. Performing pairing with the mobile phone 1 to perform authentication processing, and using the Bluetooth communication unit 25 in step S16, the mobile phone 1-1 and another mobile phone 1-2 that permits the handover request Establish a Bluetooth connection between the two.

  The mobile phone applicable to the communication terminal according to the present invention wirelessly communicates between the communication terminal and the opposite device (other mobile phone 1-1) using the first wireless communication unit (NFC communication unit 26). The second wireless communication unit (Bluetooth communication unit 25) is used for wireless communication between the communication terminal and the opposite device, and the communication terminal and the opposite device can communicate with each other by the first wireless communication unit. When the first wireless communication unit receives a communication method switching request for switching the communication method from the first wireless communication unit to the second wireless communication unit when the first wireless communication unit receives from the opposite device, the first wireless communication unit To respond to the communication method switching request to the opposite device and switch the communication method from the first wireless communication unit to the second wireless communication unit based on the communication method switching request. Accepts connection requests from the receiving device The second wireless communication unit responds to the connection request from the opposite device, and the second wireless communication is performed based on the device information and security information from the opposite device acquired using the first wireless communication unit. Controls the pairing with the opposite device using the communication unit, and switches the communication method based on the pairing request (the pairing request included in the communication method switching request) corresponding to the notified communication method switching request. Communication method to be notified when it is determined whether the opposite device that has permitted the request is already registered, and it is determined that the opposite device that has permitted the communication method switching request is already registered. The pairing request corresponding to the switching request can be discarded, and the second wireless communication unit can be controlled not to perform pairing including authentication processing.

  As a result, the mobile phone applicable to the communication terminal according to the present invention is suitable for the pairing process for the already registered opposite device even if the communication method switching is negotiated using the first wireless communication unit. Can be canceled (omitted). Therefore, it is possible to prevent the pairing process from being performed again on the opposite device already registered by the communication terminal. Moreover, it can prevent that the name (nickname) of the opposing apparatus (other communication terminal) which the user dared to change using the communication terminal returns to the inorganic device name which the original opposing apparatus has. Furthermore, after negotiating the switching of the communication method using the NFC communication unit 26 that is the first wireless communication unit, in preparation for a connection request from the opposite device using the Bluetooth communication unit 25 that is the second wireless communication unit. It is possible to start wireless communication seamlessly with the opposing device by starting up a previously executed profile previously associated with the already registered opposing device.

  Note that, instead of the Bluetooth communication unit 25, a WLAN may be used as the second wireless communication unit, or another wireless communication unit may be used.

  The series of processes described in the embodiments of the present invention can be executed by software, but can also be executed by hardware.

  In the embodiment of the present invention, the steps of the flowchart show an example of processing that is performed in time series in the order described. However, even if they are not necessarily processed in time series, they are executed in parallel or individually. The processing to be performed is also included.

  DESCRIPTION OF SYMBOLS 1 (1-1 thru | or 1-2) ... Mobile telephone, 11 ... Transmission / reception antenna, 12 ... Transmission / reception duplexer, 13 ... Radio transmission / reception part, 14 ... Signal processing part, 15 ... Data processing part, 16 ... PCM codec, 17 ... Receiving amplifier, 18 ... receiver, 19 ... transmitting amplifier, 20 ... microphone, 21 ... control unit, 22 ... operation unit, 23 ... display unit, 24 ... content processing unit, 25 ... Bluetooth communication unit, 26 ... NFC communication unit, 27: Storage unit, 31: Communication system switching control unit, 32: Pairing control unit, 33 ... Authentication control unit.

Claims (5)

  1. First wireless communication means for performing wireless communication between the communication terminal and the opposing device;
    Second wireless communication means for performing wireless communication between the communication terminal and the opposite device;
    Communication for switching the communication method from the first wireless communication means to the second wireless communication means when the communication terminal and the opposite device are close to each other within a range where wireless communication can be performed by the first wireless communication means. When the first wireless communication means receives the method switching request from the opposite device, the first wireless communication means is used to respond to the opposite device with respect to the communication method switching request, and the communication method A communication mode switching control unit that switches a communication mode from the first wireless communication unit to the second wireless communication unit based on a switching request;
    Receiving the connection request from the opposite device received by the second wireless communication means, responding to the connection request from the opposite device using the second wireless communication means, and the first wireless communication means Based on the device information and security information from the opposite device acquired using
    Pairing control means for controlling pairing with the opposite device using the second wireless communication means;
    Based on a pairing request corresponding to the communication method switching request notified from the communication method switching control unit, it is determined whether or not the opposite device that has permitted the communication method switching request is an already registered opposite device. When it is determined that the opposite device that has permitted the communication method switching request is a registered opposite device, the pairing request corresponding to the communication method switching request notified from the communication method switching control unit is discarded. And an authentication control means for controlling the pairing control means so as not to execute the pairing including the authentication process by the second wireless communication means, and the opposing device that has permitted the communication method switching request is already registered. If it is determined that the device is an already-opposed device, the pairing control unit stores in advance the necessary authentication processing for establishing a connection with the device. And performing authentication processing using the second wireless communication unit based on security information to establish a connection between the communication terminal and the opposite device that has permitted the communication method switching request, Communication terminal.
  2. When the authentication control unit determines that the opposite device that has permitted the communication method switching request is an unregistered opposite device, pairing corresponding to the communication method switching request notified from the communication method switching control unit 2. The communication terminal according to claim 1, wherein the pairing control unit is controlled to execute pairing including authentication processing by the second wireless communication unit without discarding the request.
  3. When it is determined that the opposite device that has permitted the communication method switching request is an already registered opposite device, the communication method switching is performed before the second wireless communication unit receives a connection request from the opposite device. 2. The apparatus according to claim 1, further comprising an activation unit that activates all or a part of a profile related to the second wireless communication unit executed in the past, which is associated in advance with the opposing device that has permitted the request. Communication terminal.
  4. The communication terminal according to claim 1, wherein the first wireless communication unit is a non-contact communication method using NFC.
  5. The communication terminal according to claim 1, wherein the second wireless communication means is a Bluetooth or WLAN communication system.
JP2010013476A 2010-01-25 2010-01-25 Communication terminal Expired - Fee Related JP5310580B2 (en)

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