KR100895852B1 - System and method for providing a service about integration assign communication - Google Patents

Abstract

The present invention relates to an integrated designated communication service method and system for increasing personal security between Bluetooth devices located in a local area network, wherein the main device is configured to provide a peripheral device in a basic automatic pairing mode. When receiving a response by scanning the inquiry, it is characterized by checking whether the peripheral device and the primary pairing key matched, and if the match is matched with the peripheral device in the short-range communication automatically. According to the present invention, in the piconet communication, the external data generated in response to the request of the external communication connection can be managed to maintain personal security and perform communication.

Bluetooth, pairing, piconet, scatternet, ACL, FHS, TDD, Device, Headset

Description

System and method for providing a service about integration assign communication

The present invention relates to an integrated designated communication service method and system for increasing the security of an individual between Bluetooth devices located in a local area network.

In general, Bluetooth is a standard that can transmit and receive data at high speed using a radio frequency without a physical cable connection for communication between various electronic devices, and is disclosed in a document of "Bluetooth Specification Version 1.0". have.

Bluetooth has a maximum data transfer rate of 1 Mbps and a maximum transmission distance of 10 m. 1 Mbps is a frequency in the category within the 2.4 GHz Industrial Scientific medical (ISM) frequency band that is available to users without a license, and is a transmission rate that can be realized easily and at low cost. In addition, the transmission distance of 10 m is determined based on the determination that the transmission distance between the user's portable device and the PC installed in the desk is sufficient in the office.

In addition, since Bluetooth is designed to operate in a noisy radio frequency environment, by using a frequency hopping method of 1600 times per second, data can be reliably transmitted and received even in a noisy radio frequency.

1 is a view showing a connection method in Bluetooth.

As shown in FIG. 1, Bluetooth connection methods include (a) one-to-one connection, (b) one-to-many connection, and (c) a scatternet connection method.

In Bluetooth, a master and a slave are necessarily distinguished. A master is a device for giving a command, and a slave is a device for receiving a command from the master and performing a command. According to the Bluetooth technology, a slave must communicate with a master, and a slave must pass through a master in order to communicate with another slave. In Bluetooth, there are seven active channels, and the master can connect with up to seven active slaves.

As illustrated in FIG. 1, a plurality of communication devices may be organized and connected together with respect to any one communication device. At this time, each communication device is distinguished by a different frequency hopping order. This connected organization is called a piconet. That is, the piconet refers to a component unit of a Bluetooth unit formed by connecting one or more slaves to one master.

In addition, a communication device in a piconet may perform data communication with a communication device in another piconet. The organization of multiple piconets together is called a scatternet.

On the other hand, when creating an ACL (Asynchronous ConnectionLess) link on a piconet between Bluetooth, all communication devices send and receive the same data, and when the external devices are connected from the external communication network, all users of the piconet can know the contents of the external communication. There is a disadvantage that the communication security of the network is difficult to maintain.

In order to solve the above problems, the present invention, when the peripheral device is turned on (On) for the main device in the piconet communication automatically performs a basic pairing, when the external device is connected from the external communication network An object of the present invention is to provide an integrated designated communication service method and system for automatically processing an externally requested scan signal, a call, a pairing request, and the like.

Another object of the present invention is to provide a Bluetooth system that, when receiving a pairing request from another external device, ignores or rejects the pairing request in the basic pairing mode, and performs multiple pairing in response to the pairing request in the multiple pairing mode. There is this.

In accordance with an aspect of the present invention, there is provided a method for integrated designation communication service, comprising: (a) querying whether a peripheral device exists in a basic automatic pairing mode; (b) receiving a response to the inquiry scan from the peripheral device; (c) confirming whether the responded peripheral device and the basic pairing key match; And (d) if the basic pairing key matches, connecting with the peripheral device in short-range communication.

 In addition, the integrated designation communication service method according to the present invention for achieving the above object comprises the steps of: (a) inquiry scanning the peripheral device by short-range communication; (b) receiving a response to the inquiry scan from the peripheral device; (c) receiving a password for the peripheral device in response; (d) checking whether the password is approved by the peripheral device; (e) generating and assigning a basic pairing key to the peripheral device; (f) checking a basic pairing key with the peripheral device; And (g) registering and storing the password of the peripheral device in correspondence with the basic pairing key.

In addition, the integrated designation communication service method according to the present invention for achieving the above object comprises the steps of: receiving a pairing request from another external device; Determining whether an operation mode state is a basic pairing mode or a multiple pairing mode according to the pairing request; And processing the pairing request according to the basic pairing mode or the multiple pairing mode.

In addition, the Bluetooth system according to the present invention for achieving the above object, the transceiver for receiving a pairing request from another external device; A mode switching unit for switching the operation mode state to a basic pairing mode or a multiple pairing mode; And a connection initiation unit for checking the operation mode state according to the pairing request and processing the pairing request.

According to the present invention, when listening to music through the basic headset through the MP3P registered as the basic device, the headset may respond to pairing search or call from another external device in the multi-call pairing mode.

In addition, the present invention can block the external Bluetooth signal by ignoring or rejecting pairing search or call from an external device when the basic headset is designated as the basic pairing mode.

In addition, the piconet communication may manage external data generated according to a request of an external communication connection to perform communication while maintaining personal security.

In addition, by switching between the basic pairing mode and the multiple pairing mode of the Bluetooth system, an individual's security can be enhanced by ignoring or rejecting an external Bluetooth search signal, a call, a pairing request, or the like.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings.

In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

First, a description will be given of the Bluetooth system to help the understanding of the present invention. Blutus is a wireless communication method without centralized management. Therefore, in order for a device to communicate with another device, it is necessary to inquire whether there is a device equipped with Bluetooth in the area where its radio waves are applied. Devices in the vicinity of the querying device find out that there is an inquiry from some other device by an inquiry scan and respond to the inquiry with an inquiry response function.

Here, Bluetooth uses a frequency hopping scheme of a frequency hopping spread spectrum (FHSS) scheme. The FHSS scheme first divides a given frequency band into a large number of hopping channels, and pre-determines when converting the first-modulated signal (intermediate frequency) to a radio frequency (RF) frequency band (2.4 GHz) at the transmitting side. Assign to different hopping channels in order. In this case, the channel to which the signal is assigned is changed at a high speed, thereby reducing the effects of multichannel interference and narrowband impulsive noise. The receiving end recovers the original signal by connecting the received signals distributed in several hopping channels in the same order as in the transmitting end. IEEE 802.11 uses 79 hopping channels, and each hopping channel is arranged at 1 MHz intervals from each other. When signals are assigned while hopping between multiple channels, ensure that at least 6 MHz is spaced between two successive hopping channels to avoid mutual interference, and that the rate of hopping channel switching (hopping rate) is greater than 2.5 times per second. It is prescribed.

The inquiry device transmits the FHS packet to the device for inquiring, and the inquired device can know the counterpart's 48-bit address. Page is set by this address. The device (sending device) that wants to establish a connection begins the page process using a specific address. At this time, the destination equipment should scan the page periodically. The connection is established because the page duration is longer than the page scan interval. When a page scan recognizes that it is being paged, the device immediately begins the process of establishing a connection and, in the normal case, the connection is established successfully. Bluetooth also improvises one-to-one or one-to-many connections as shown in Figure 1 without centralized management. At this time, the device requesting the connection setting is set as the master, and the device that responds to the page is set as the slave. This master and slave are called Roles, and the slave is synchronized to the master's internal clock. However, at the request of a slave, that is, a device that responds to a page may request a change of role.

The master's Bluetooth device address (BD_ADDR) determines the frequency hopping sequence and the channel access code. In other words, the clock of the master determines the phase of the hopping train and sets the timing. The master also controls the traffic on the channel. Any device can be a master if it is a digital device, and once the piconet is formed, the roles of the master and slave can be changed again.

The master and the slave basically perform bidirectional communication by a time division duplex (TDD) in units of one hopping slot (625 ms = 1/1600 seconds).

2 is a diagram illustrating communication by TDD between a master and a slave.

Referring to FIG. 2, the length of each channel allocated to the timeslot is 625 μs. The number of timeslots is determined by the Piconet master's Bluetooth clock. In addition, the timeslot allows the master and the slave to send packets alternatively. That is, the master transmits the packet only in the even numbered timeslot, and the slave transmits the packet only in the odd numbered timeslot. In addition, a packet transmitted by a master or a slave may be implemented within five timeslots. Here, the packet refers to a unit of data transmitted in the piconet channel.

In the connected state of Bluetooth, the master may operate the slave in a hold mode, a sniff mode, a park mode, and the like to save power. In this case, the hold mode refers to a mode in which a sleep state is entered while AM_ADDR (Active Member Address) is maintained while a master and a slave are connected. The sniff mode refers to a mode in which the interval between Listens is extended while AM_ADDR is held when the master and the slave are connected. The park mode is a mode in which the AM_ADDR is opened while the master and the slave are connected to enter the sleep state. The PM_ADDR (Parked Member Address) or AR_ADDR (Access Request Address) is given from the master before the slave switches to the park mode.

Here, AM_ADDR is expressed as a member address and identifies active members participating in the piconet. In other words, when two or more slaves in a piconet connect to one master, the master assigns a temporary 3-bit address to be used when each slave is activated to distinguish each slave. Therefore, all packets exchanged between the master and the slave carry AM_ADDR. That is, the AM_ADDR of the slave is used not only for the packet from the master to the slave but also for the packet from the slave to the master. If the slave is not connected to the master or the slave is in park mode, the assigned AM_ADDR is abandoned and must be assigned a new AM_ADDR when connected to the master again. The reason why the piconet is limited to one master and seven slaves is because the address (AM_ADDR) assigned to master-activated slaves is limited to three bits in the Bluetooth standard. That is, the address '000' of the maximum eight addresses can be used for broadcasting from the master to the slave, and only seven addresses from '001' to '111' can be used.

3 is an overall block diagram of a Bluetooth system used in the present invention.

Referring to FIG. 3, the Bluetooth system includes a Bluetooth module 310, a host controller interface (HCI) transport layer 320, an HCI driver 330, and a logical link control (L2CAP). Adaptation Protocol (340), Bluetooth Service User (350), and Personal Ad-hoc Network (PAN) Manager 360.

The Bluetooth module 310 is an independent device that is connected to a device to use Bluetooth, that is, a wired serial communication standard such as RS-232C or USB (Universal Serial Bus) to a host.

The HCI transport layer 320 is RS-232C or USB. The HCI transport layer 320 controls the module in response to a series of commands defined in the standard and in response thereto, and also transmits and receives data by the host.

The L2CAP 340 multiplexes various protocols on top of the communication protocol defined in the standard.

The HCI driver 330 transmits and receives an HCI command defined in the standard, a response thereof, and data transmitted and received to the L2CAP 340 through the HCI transport layer 320.

The Bluetooth service user 350 is an application using the Bluetooth service.

The PAN manager 360 performs a PAN management function of integrating a device equipped with the Bluetooth module 310 into one network. In addition, the PAN manager 360 provides a service with an interface with the user's application program, and communicates with the PAN master using the L2CAP 340 with a position equivalent to various communication protocols existing on the L2CAP 340.

In order to form and manage a simple network of electronic devices equipped with the aforementioned Bluetooth system, a specific electronic device becomes a master of the Bluetooth piconet.

The PAN manager 360 in the Bluetooth-equipped electronic device inquires whether another Bluetooth-equipped electronic device exists in the radio communication area, and determines whether there is a response thereto.

At this time, depending on whether there is a response to the inquiry, it switches to the master or slave of the PAN and performs the following functions.

1) If there is no response to the inquiry, the inquiry scan and page scan are repeated. Subsequently, if there is a connection request of another newly entering device by appropriately switching the modes of slaves in the PAN as necessary, the connection is rejected or accepted according to its operation mode state, that is, basic pairing mode or multi pairing mode.

In addition, if a role switch is not required, the slave device remains as a slave to the device requesting the connection. In order to continue to perform the role of the PAN master, a role switch is required when the connection is accepted to remain as the PAN master. Subsequently, it transmits information about itself and the slaves currently configuring the PAN to the newly entering slave, and also stores device information (eg, address, name, etc.) about the newly entering or leaving PAN slave. Broadcast this to other slaves. In addition, it disconnects from a specific slave at the request of a slave, and sets the order of backup master in case of departure of the current master.

2) If there is a response to the inquiry, there is a preconfigured PAN in its propagation area, and when a connection is established after requesting a page from the PAN master to enter a preconfigured PAN, a role is played. Change to remain slave to the PAN master. Receive information about all slaves configuring the PAN from the PAN master. At this time, backup master information is also received. Next, when not communicating with other devices in the PAN, switch to the park mode (Park mode) to receive the information currently broadcast by the PAN master and update its own PAN information. At this time, if you want to communicate with other slaves in the PAN, the slave asks the PAN master to release the connection with the PAN master. When the connection between the slaves is terminated, the slave enters the PAN again. In addition, if the PAN master disappears, the master is identified by the backup master sequence number specified when entering the PAN, and the PAN is rebuilt.

On the other hand, in the embodiment according to the present invention, the operation is registered as a base device (Base Headset) for the master device (Main Device), the communication between the master device and the registered base device 'base pairing mode (Base Pairing Mode) The operation of communication between other piconets and master devices of other scatternets is referred to as a 'multiple pairing mode'.

4 shows another example of a Bluetooth system used in the present invention.

Referring to FIG. 4, the Bluetooth system 410 includes a mode switch request unit 412, a mode switch unit 414, a transceiver 416, and a connection start unit 418.

When the connection with the second external device 440 is initiated while the Bluetooth system 410 is connected with the first external device 430, the mode switching requester 412 is connected to the first external device 430. In order to transmit and receive the request, the second external device 440 requests the mode switch to the sniff mode. That is, when the communication with the second external device 440 is initiated when the Bluetooth system 410 is operating in the multi pairing mode with respect to the first external device 430, the mode switching requesting unit 412 is connected to the first external device. In order to transmit and receive data with the device 430, a request signal for switching to the sniff mode is transmitted to the second external device 440. When the request signal transmitted from the mode switch request unit 412 is transmitted to the second external device 440, the connection state of the Bluetooth system 410 and the second external device 440 is switched to the sniff mode, and the Bluetooth system 410 transmits and receives data with the first external device 430.

If the request by the mode switching requester 412 is allowed by the first external device 430 or the second external device 440, the mode switching unit 414 may use the first external device 430 or the second external device. The connection state with 440 is switched to the sniff mode.

However, when the Bluetooth system 410 is operating in the basic pairing mode with respect to the first external device 430, when a connection request is received from the second external device 440, the connection initiation unit 418 may perform a second connection. The connection request from the external device 440 is rejected or ignored. Therefore, the mode switching unit 414 disconnects the second external device 440 and maintains a state capable of transmitting and receiving data with the first external device 430.

The transmission / reception unit 416 processes the RF signal received from the outside, and the RF signal, and transmits the transmission target data packet to the outside. Here, the transceiver 416 is connected to the first external device 430 or the second external device 440 by the mode switching unit 414 in a state where the second external device 440 is switched to the sniff mode. Alternatively, data packets are transmitted and received with the first external device 430.

The connection initiation unit 418 initiates communication for transmitting and receiving data with the second external device 440 while transmitting and receiving data with the first external device 430. That is, in order for the Bluetooth system 410 to transmit and receive data to the second external device 440 as a master, the connection initiation unit 418 transmits a communication request signal to the second external device 440 and transmits the transmitted data. When the request signal is scanned by the second external device 440, data is transmitted and received from the second external device 440 thereafter. Alternatively, in order for the Bluetooth system 410 to transmit / receive data to the second external device 440 as a slave, the connection initiation unit 418 scans a communication request signal received from the second external device 440 and thereafter. The Bluetooth system 410 transmits and receives data with the second external device 440. Here, the Bluetooth system 410 wirelessly transmits and receives data transmitted and received with the host 420 to the first external device 430 or the second external device 440 as described above. As a result, the wireless communication device equipped with the Bluetooth system 410 may switch from piconet communication to scatternet communication, or from scatternet communication to piconet communication and communicate with an external device.

5 is a system configuration diagram illustrating basic pairing and multi-currency pairing according to an embodiment of the present invention.

Referring to FIG. 5, the first main device 510, the MP3P 520 of a Bluetooth function, the first base headset 530, the second base headset 540, and Base headset 3 (550) is a piconet.

Here, the first main device 510 is a terminal including a mobile terminal, a PC, a PDA, a TV, an audio device, etc., and capable of short-range communication including a Bluetooth function.

The first main device 510 can maintain the basic pairing mode with the MP3P 520 and the first base headset 530, as well as multiple pairs with the second base headset 540 and the third base headset 550 at the same time. You can keep the mode.

For example, the MP3P 520 and the first base headset 530 registered as the 'primary device' for the main device 510 are powered on or use 'Bluetooth' of application software in the device. If it is set to 'use' in the 'Settings' can be used as a basic pairing to the main device 510 No. 1 without a separate pairing process.

In the case of multi-call pairing, when the first main device 510 tries to pair with the second base headset 530 and the third base headset 540 through the integrated designated communication pairing setting, the second base headset 530 If this multi-call pairing is set and the base headset 3540 is set as the primary pairing, the base headset number 530 of the second pair is connected, but the base headset 540 is set as the primary pairing. There is no pairing connection because the pairing is ignored.

In addition, the first base headset 530 loses all pairing functions when the power is off, but when the power is on, the first main device 510 is registered as a 'default device'. As the device is inquired, the first device 510 is paired and connected. However, even when the power of the first base headset 530 is turned on (on) when the 'Bluetooth use setting' of the application of the first main device 510 is set to 'not used', automatic pairing is not performed.

The present invention can be applied to communication that forms a piconet or scatternet through short-range communication or communication on the basis of infrared communication, PAN, etc. in addition to the above-described Bluetooth communication.

6 is a flowchart illustrating a process of registering a main device as a basic device according to an embodiment of the present invention.

Referring to FIG. 6, the first main device 510 performs a device inquiry to the surroundings using, for example, a Bluetooth function (S602).

Accordingly, when the Bluetooth function of the device is in an on state, the MP3P 520 or the first base headset 530 transmits an inquiry response signal to the first main device 510 (S604).

In contrast, the first main device 510 connects pairing with the MP3P 520 or the first base headset 530 which sent the inquiry response signal (S606).

Subsequently, the first main device 510 receives a password for registering a basic device of the MP3P 520 or the first base headset 530 from a user (or an administrator) (S608), and receives the received password from the MP3P 520. Or it transmits to the first base headset 530 (S610).

Here, the password means, for example, a device password provided when the Bluetooth device is shipped.

Subsequently, the first main device 510 receives whether the password is approved from the MP3P 520 or the first base headset 530 (S612), and when the corresponding password is approved (S614), the MP3P 520 or 1. The primary pairing key for the first base headset 530 is generated, and the generated basic pairing key is assigned to the MP3P 520 or the first base headset 530 (S616).

Here, the basic pairing key is a random key generated by the first main device 510 when the first main device 510 is registered as a 'basic device', and is periodically changed after setting.

Subsequently, the first main device 510 checks the pairing key from the inquired device whether the basic pairing key granted to the MP3P 520 or the first base headset 530 is stored correctly (S618), and the pairing key from the inquired device. When the check is completed (S620), the password for the inquired device is registered and stored in correspondence with the corresponding basic pairing key (S622).

Accordingly, the first main device 510 has a password and a basic pairing key for the MP3P 520 or the first base headset 530 registered as the 'basic device', and thereafter, the MP3P 520 or the first number. When the power of the base headset 530 is turned on, basic pairing may be automatically performed.

FIG. 7 illustrates a multi-voice pairing communication through a piconet and a scatternet according to another embodiment of the present invention.

Referring to FIG. 7, the first main device 710, the first base headset 712, the second headset 714, the third base headset 716. 4, the Base Headset 718 forms a piconet.

Here, the first main device 710 includes a mobile terminal, a PC, a PDA, a TV, an audio device, and the like, and includes a terminal capable of short-range communication with a Bluetooth function.

The first main device 710 can not only maintain the basic pairing mode with the first base headset 712, but also simultaneously with the second headset 714, the third base headset 716, and the fourth base headset 718. Can maintain multiple pairing mode.

Meanwhile, the third base headset 716 forming the piconet with the first main device 710 may maintain a basic pairing mode for communicating with the third main device 720 in a scatternet at the same time.

In addition, the fourth base headset 718 that forms the piconet with the first main device 710 may maintain a basic pairing mode for communicating with the fourth main device 730 through a scatternet.

As described above, main device 1 710 serving as a master in the piconet or main device 720 serving as a master in the scatternet 3 and main device 730 4 serve as peripherals through application software. Find your Bluetooth headset and select the device you want to pair with.

8 is a diagram illustrating a state in which a device is searched for pairing.

Referring to FIG. 8, a screen in which a device is searched for pairing includes a selection button 810 for selecting a pairing target, a call button 820 indicating a call target, and a communication button 830 for communication of a call target. , A selection check mark 840 for indicating that the pairing target is selected as a check, a basic device display 850 for displaying, for example, an asterisk (★) or the like, and a state of displaying the communication state Display 860.

As shown in Fig. 8, the state of the device searched for pairing was found in the headset [01] and PDA [01], taboo headset and headset [02], among which headset [01] and PDA [01] The communication state is 'Busy' state, the headset [02] is the 'standby' state, the taboo headset set as the basic device can be seen that the communication state is 'connected' state. FIG. 9 is a diagram illustrating a case of calling a headset in a busy state, in which a headset [01], a contraindication headset and a base headset [02] are selected as pairing targets, among which a headset [01] in a 'Busy' state is called. It is shown.

10 is a flowchart illustrating an integrated designated communication service method according to an embodiment of the present invention.

Referring to FIG. 10, the first main device 710 sets the operation mode of the device to a basic automatic pairing mode according to an operation of a user or an administrator (S1002).

Therefore, when the power source is turned on, the main device 710 performs a device inquiry and scan to check whether a device exists around the device as the operation mode of the device is set to a basic automatic pairing mode. (S1004).

In this case, the first headset 712, the second headset 714, the third headset 716, and the fourth headset 718 exist in a power-on state around the first main device 710. Assume that The first base headset 712, the second headset 714, the third headset 716, and the fourth headset 718 are connected to the first main device 710 in the same manner as illustrated in FIG. 6. Assume that a default pairing key and password are registered.

Accordingly, the first base headset 712, the second headset 714, the third headset 716, and the fourth headset 718 are inquiries about the device inquiry and scan sent by the main device 710. Will be received.

Base 1 headset 712, headset 2 714, headset 3 716, and headset 4 718 that received an inquiry signal for device inquiry and scan from main device 710, The response signal is transmitted to the main device 710 (S1006).

The main device 710, which receives the response signal for the device inquiry and scan from the first base headset 712 and the second headset 714, the third headset 716, and the fourth headset 718, is queried. Check whether the device and the primary pairing key match (S1008).

That is, the first main device 710 transmits a request signal of a basic pairing key and a password to the first base headset 712, the second headset 714, the third headset 716, and the fourth headset 718. Receive the default pairing key and password from each of the first base headset 712, the second headset 714, the third headset 716, and the fourth headset 718 to obtain a pre-registered default pairing key and password. Each will be compared.

When the default pairing key and password received from the first base headset 712 and the second headset 714, the third headset 716, and the fourth headset 718 match the registered default pairing key and password. In operation S1010, the first main device 710 may communicate with the first base headset 712, the second headset 714, the third headset 716, and the fourth headset 718, respectively, for example. To connect (S1012).

Subsequently, when there is a registration request from any device among the first base headset 712 and the second headset 714, the third headset 716, and the fourth headset 718 (S1014), The first main device 710 checks the password of the device as a procedure for performing authentication on the device that has been registered as the basic device (S1016).

For example, when the second headset 714 requests registration as a 'main device' with the first main device 710, the first main device 710 requests a password to the second headset 714, and the second headset. A password is received from 714 to check whether it matches the pre-registered password.

When the password received from the device requested to be registered as the basic device and the previously registered password match (S1018), the first main device 710 checks the basic pairing key of the device requested to be registered as the default device (S1020).

For example, the first main device 710 requests the basic pairing key from the second headset 714 and checks whether the basic pairing key received from the second headset 714 and the registered basic pairing key match. .

When the basic pairing key received from the device requested to be registered as the basic device and the previously registered basic pairing key match (S1022), the first main device 710 registers the corresponding device as a 'default device' (S1024). .

That is, the first main device 710 registers the second headset 714 requested to be registered as a basic device as a 'basic device'.

11 is a flowchart illustrating an integrated designated communication service method according to another embodiment of the present invention.

Referring to FIG. 11, a main device as a master in a piconet or scatternet maintains multiple pairing states with a plurality of devices (S1102).

For example, as shown in FIG. 7, the first main device 710 and the first base headset 712 are registered as a 'basic device', and the third main device 720 and the third base headset 716 are registered. It is registered as a 'basic device', and the main device 730 and the fourth base headset 718 are registered as the 'basic device', and the main device 710 of the first device is a piconet and the first base headset. 712 and the second headset 714, the third base headset 716, and the fourth base headset 718 are selected to perform multiple pairing.

In this state in which the main device 710 performs multiple pairings with other devices, an external communication connection such as a telephone or a text service may be requested from an external device of another communication network (S1104).

When the first main device 710 receives a pairing request from an external device of another communication network in a multi pairing state (S1104-YES), the main device 710 checks whether the current operation mode state is a basic pairing mode or a multi pairing mode (S1106).

Here, the multi-pairing mode may include an operation mode in which the main device 1210 performs data communication while performing voice communication with the electronic devices having a plurality of Bluetooth functions, as shown in FIG. 12. 12 is a diagram illustrating a multiple pairing mode between a main device and a plurality of devices. That is, while the main device 1210 performs voice communication with the MP3P (Player) 1220 having Bluetooth function, the main device 1210 also performs voice communication with the base headset 1230, and performs voice communication with the headset 1240. And an operation mode for performing data communication with the Internet PC 1250 having a Bluetooth function and performing data communication with the PDA 1260 having a Bluetooth function.

For example, when the first main device 710 is determined to be a basic pairing mode as a point-to-point connection with the first base headset 712 as illustrated in FIG. 7 (S1108), another external Bluetooth device is connected. Ignore or reject the pairing request from (S1110).

Therefore, a user who listens to the sound output from the mobile communication terminal having the MP3 function corresponding to the first main device 710 through the wireless headset corresponding to the first base headset 712 is not disturbed by others. It is possible to maintain security.

13 is a diagram illustrating a processing state when receiving a Bluetooth pairing request in the basic pairing mode. As shown in FIG. 13, while the main device 1310 maintains a basic pairing mode in which voice communication is performed with the base headset 1312 and performs data communication with the MP3P 1314 having a Bluetooth function, the headset is connected to an external communication network. When the external main device 1320 that performs voice communication with the 1322 calls the Bluetooth pairing request to the base headset 1312 in the basic pairing mode, the base headset 1312 in the basic pairing mode is connected to the external main device 1320. Ignore or reject the Bluetooth pairing request from the.

On the other hand, the first device 710 is a multi-pairing mode as a point-to-multipoint connection or a scatternet connection with a number of headsets, such as the base headset 712, for example, as shown in FIG. If it is determined to be (S1120), for example, multi-call pairing is performed in response to a pairing search or call from an external device (S1122).

That is, in response to a pairing request from another external Bluetooth device, the first main device 710 transmits a ring tone or a call signal to the first base headset 712 in the basic pairing mode to notify the user of an external pairing connection. According to the user's choice, multiple calls are made while other external devices are connected.

If the user wants to make a multiple call with the second headset 714, the third base headset 716, and the fourth base headset 718 in response to a telephone call request from another external device, the first main device 710 is the application software. To switch to multiple calls with devices on the piconet.

When an external communication connection is requested from the third main device 720 or the fourth main device 730, the third main device 720 first communicates with the third base headset 716 set as a 'basic device'. 4, the main device 730 also communicates with the number 4 headset 718 set as the 'primary device' preferentially, and the main device 3 or the main device 730 3 or 730 through the scatternet. ) Can be connected to multiple currencies.

Also, even if the base headset 718 is out of the piconet range, the piconet connection with the main device 710 is not disconnected, and the base headset 718 is connected to the piconet when the base headset 718 returns to the piconet range. .

14 is a diagram illustrating a processing state when receiving a Bluetooth pairing request in a multiple pairing mode. When the base headset 1412 is in a multi-call pairing mode when listening to music through the base headset 1412 from an MP3P 1414 of a Bluetooth function registered as a 'basic device' as shown in FIG. When a pairing search or a call is received from the external main device 1420, the base headset 1412 is in a multi-call pairing mode, and thus the multi-call in which the external main device 1420 participates in response to the Bluetooth pairing request or call is received. Perform pairing.

As described above, a device registered as a 'primary device' has priority over other devices on the piconet, and when a request for an external communication connection is made during piconet communication with two or more devices, i.e., a 'primary device' Only the device registered with the first transmits the call signal, and responds only with the external device and the external device in response. During a separate communication, the communication can be performed in common with other devices on the piconet, and the piconet communication can be performed even after the external communication ends. One multi-paired piconet overlaps another piconet to form a scatternet, and the base device can specify one or more numbers depending on the type of device through the application software.

Also, A / V signal from PDA or PC can be received from main device and output as video on main device screen or audio signal can be sent to headset. MP3P audio signal can be received from main device and sent to headset on piconet. MP3 music can be shared, and when external communication is connected from the main device, the MP3 music can be returned after the separate communication with the basic device is performed while the MP3 music is maintained.

Accordingly, according to the present invention, the basic device is automatically performed when the peripheral device is turned on for the main device in the piconet communication, and is requested from the outside when the external device is connected from the external communication network. An integrated designated communication service method and system for automatically processing a scan signal, a call, a pairing request, or the like can be realized.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

The present invention can be applied to short-range communication including Bluetooth communication, infrared communication, and PAN, and can be applied to communication forming a piconet or scatternet through short-range communication.

1 is a view showing a connection method in Bluetooth,

2 is a diagram illustrating communication by TDD between a master and a slave;

3 is an overall block diagram of a Bluetooth system used in the present invention;

4 is a view showing another example of a Bluetooth system used in the present invention;

5 is a system configuration diagram illustrating basic pairing and multi-call pairing according to an embodiment of the present invention;

6 is a flowchart illustrating a process of registering a main device as a basic device according to an embodiment of the present invention;

7 is a diagram illustrating multiple voice pairing communication through a piconet and a scatternet as an embodiment according to the present invention;

8 is a diagram illustrating a state where a device is searched for pairing;

9 is a view showing a case of calling a headset in a busy state,

10 is a flowchart illustrating an integrated designated communication service method according to an embodiment of the present invention;

11 is a flowchart illustrating an integrated designated communication service method according to another embodiment of the present invention;

12 is a diagram illustrating a multiple pairing mode between a main device and a plurality of devices;

13 is a diagram illustrating a processing state when receiving a Bluetooth pairing request in a basic pairing mode; and

14 is a diagram illustrating a processing state when a Bluetooth pairing request is received in a multiple pairing mode.

<Description of Symbols for Main Parts of Drawings>

310: Bluetooth module 320: HCI transport layer

330: HCI driver 340: L2CAP

350: Bluetooth service user 360: PAN manager

510: main device 520: MP3P

530 ~ 550: Base headset 710, 720, 730: Main device

712, 716, 718: base headset 714: headset

Claims (17)

delete delete delete delete delete delete delete (a) receiving a pairing request from another external device; (b) determining whether an operation mode state is a basic pairing mode or a multiple pairing mode according to the pairing request; And (c) processing the pairing request according to the basic pairing mode or the multiple pairing mode; Integration specified communication service method comprising a. The method of claim 8, In the step (c), when the operation mode state is the basic pairing mode, the integrated designated communication service method, characterized in that to ignore or reject a pairing request from the other external device. The method of claim 8, In the step (c), when the operation mode state is the multiple pairing mode, the integrated designated communication service performs a multiple pairing operation with the other external device in response to a pairing request from the other external device. Way. The method of claim 8, In the step (a), receiving the pairing request from the other external device existing on the piconet or scatternet. The method according to claim 8 or 11, wherein And the pairing request includes a phone call request or a text service. A transceiver for receiving a pairing request from another external device; A mode switching unit for switching the operation mode state to a basic pairing mode or a multiple pairing mode; And A connection initiation unit for checking the operation mode state according to the pairing request and processing the pairing request; Bluetooth system comprising a. The method of claim 13, And the connection initiation unit ignores or rejects a pairing request from the other external device when the operation mode state is the basic pairing mode. The method of claim 13, The connection initiation unit, when the operation mode state is the multi-pairing mode, the Bluetooth system, characterized in that for performing a multiple pairing operation including the other external device in response to a pairing request from the other external device. The method of claim 13, The transmission and reception unit, the Bluetooth system, characterized in that for receiving the pairing request from another external device on the scatternet. The method of claim 13, The pairing request includes a phone call request or a text service.

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