KR100744787B1 - Device and method of setting initiator situation for nfc terminal - Google Patents

Abstract

An initiator setup device of an NFC(Near Field Communication) terminal and a method are provided to quickly determine an initiator without delay and deadlock generation, thereby increasing reliability as shortening communication time. An application unit(30) records operation data and an application program for P2P(Peer to Peer) communication in an NFC way. A controller(20) generates a random number having a 'SEED' serial number by a program loaded from the application unit(30), and controls/monitors so that a P2P access request signal is generated by a time slot occurred by the random number. An RN(Random Number) unit(40) generates the random number having the 'SEED' serial number under control of the controller. An RF(Radio Frequency) unit(50) generates the P2P access request signal as an NFC type wireless signal to transmit or receive the generated signal. An SN(Serial Number) unit(60) provides the recorded serial number.

Description

DEVICE AND METHOD OF SETTING INITIATOR SITUATION FOR NFC TERMINAL}

1 is a functional block diagram of the transmitter determining apparatus of the NFC terminal according to an embodiment of the present invention,

2 is a flowchart illustrating a method for operating a transmitter determining apparatus of an NFC terminal according to an embodiment of the present invention.

** Description of the symbols for the main parts of the drawings **

10: keyboard unit 20: control unit

30: application part 40: RN part

50: high frequency part 60: SN part

70: slot

The present invention relates to a communication device of the NFC terminal, and more particularly, to a transmitter setting apparatus and method of the NFC terminal for quickly setting the initiator in the state that the deadlock phenomenon does not occur.

NFC (NEAR FIELD COMMUNICATION) technology is developed from the RADIO FREQUENCY ID (RFID) technology, and is internationally standardized by NFC FORUM.

The frequency used is the 13.56 MHz band, and is in data communication at close range in the range of about 5 Cm to 10 Cm.

When such a module of NFC technology is mounted, it is applied to electronic payment, P2P communication, traffic card, library card, etc., and reads or writes data.

P2P (PEAR TO PEER) communication method is a one-to-one communication method, when the NFC module is installed in the mobile communication terminal, the initiator (ACTIVEATOR) to control the data transmission and reception (active) must be determined, and the other party Become a receiver and run passively.

This process is also called SYNCHRONIZATION process in other data communication equipment.

The sender and the receiver in the NFC-type P2P communication are determined by the corresponding application program or protocol of each terminal, and the method of determining the sender is to first push the connection attempt with the other party.

At this time, if both terminals attempt to access the same time or time slot, the sender cannot be determined, and each terminal tries again in the next order by a predetermined period, so a delay occurs. The deadlock is said to be the case where this phenomenon is repeated indefinitely.

Therefore, there is a problem that P2P communication using the NFC terminal is delayed or cannot be normally performed.

Therefore, there is a need to develop a technology for quickly and stably setting the sender of P2P communication by allowing the time slots generated from each of the mass-produced NFC terminals to be different from each other.

The present invention is to determine the sender for the P2P communication proceeds to the NFC terminal, and in particular, to provide a device and method for determining the sender of the NFC terminal to quickly determine the sender without deadlock generation and delay.

The present invention devised to provide the above object, the application unit for recording the application and the operating data for P2P communication in the NFC method; A controller for generating a random number having a serial number as SEED by an application program loaded from an application unit, and controlling and monitoring the P2P connection request signal to be generated by a timeslot generated by the random number; An RN unit generating a random number having the serial number as SEED under the control of the controller; A high frequency unit generating and transmitting or receiving a P2P connection request signal as an NFC wireless signal under the control of a controller; An SN unit for providing a serial number recorded under control of the controller; Present a configuration that includes.

In addition, the present invention devised to provide the above object is, when it is confirmed that the NFC communication by the control unit, generating a random number with a serial number, generating a time slot with a random number; Generating a P2P connection request signal by a timeslot and wirelessly outputting the same to determine whether the other party is connected to the other party by NFC; If it is confirmed that the connection with the other party, the active process to set as a sender and actively proceed with the NFC type P2P communication; This presents the included configuration.

Hereinafter, according to the present invention having the above configuration, a transmitter and apparatus for determining a transmitter of an NFC terminal will be described with reference to the accompanying drawings.

1 is a functional block diagram of a transmitter determining apparatus of an NFC terminal according to an embodiment of the present invention, and FIG. 2 is a transmitter determining apparatus of an NFC terminal operating according to an embodiment of the present invention. It's a way flowchart.

In describing the embodiments of the present invention, descriptions are omitted for technical contents that are not directly related to the present invention and are well known, and thus, the present invention is clearly transmitted without passing the gist of the present invention.

Referring to Figure 1, according to an embodiment of the present invention, when describing the transmitter determination apparatus of the NFC terminal, the keyboard unit 10 for inputting a control command; A controller 20 for monitoring the entire operation and generating and operating a P2P connection request signal; Application unit 30 for recording the application and data for operating the NFC type P2P communication; RN unit 40 for generating a random number by the provided SEED; A high frequency unit 50 for wireless transmission and reception of a P2P connection request signal, a response signal, and wireless transmission and reception of a P2P communication signal under the control of a controller; SN unit 60 for recording its own serial number; A slot unit 70 for generating a timeslot by a random number; This configuration is included.

Referring to Figure 2, according to an embodiment of the present invention, when explaining a method for operating a transmitter determination apparatus of the NFC terminal, generating a random number with a serial number and generating a timeslot; Generating a P2P connection request signal and confirming an NFC method connection with the other party; Setting up as a sender and actively performing P2P communication; Setting up as a receiver and manually performing P2P communication; This is the configuration that is included.

1 and 2, according to the present invention, a transmitter determining apparatus and an operation method of the NFC terminal, the operation power is supplied to each functional unit from a power supply device not shown in the drawing, the control unit ( 20 loads and boots an APPLICATION program and operation data for P2P communication from the application unit 30 by the NFC method.

The control unit 20 confirms whether a control command for P2P communication is input from the keyboard unit 10 by the NFC method (S10), and when confirmed as a P2P communication control command, controls the SN unit 60 to the NFC terminal. The electronic serial number (NFC SERIAL NUMBER) is provided to the RN unit 40 as SEED.

The RN unit 40 generates a randomly selected number as a random number RANDOM NUMBER between invitation random numbers MaxWindowNum that may occur using a serial number provided as SEED (GeneratedRandNum) (S20).

In other words, each NFC terminal has a different serial number, there is an advantage that the value provided by the SEED mode is different.

The control unit 20 provides the slot unit 70 with the random number generated by the RN unit 40 to control and monitor the corresponding timeslot (S30).

The controller 20 generates a P2P connection request signal based on the timeslot generated by the slot unit 70 and provides the P2P connection request signal to the high frequency unit 50, so that the controller 20 outputs the radio frequency signal of the band allocated to the NFC scheme. (S40).

The control unit 20 monitors the high frequency unit 50 and checks whether a reply in response to the P2P connection request signal is detected from the counterpart communicating with P2P (S50).

If the P2P connection is successful in this confirmation process, the control unit 20 sets itself as a sender and performs active communication with the initiative in P2P communication with the other party.

In addition, when it is confirmed that the connection is not made by the control unit 20 in the verification process, on the contrary, it is checked whether a P2P connection request signal is received from the counterpart (S70).

If it is confirmed by the controller 20 that the P2P connection request signal is received from the counterpart, the controller 20 sets the receiver TARGET and performs P2P communication passively (S80).

In other words, in communicating with the counterpart by the NFC method, a time slot is generated with a random number having its own electronic serial number as SEED, and a P2P connection request signal is generated to the counterpart by such a time slot, thereby communicating with the NFC method. Proceed.

That is, since each terminal has a different serial number, random numbers generated using the serial number are different, and time slots are generated at different times. Therefore, collision does not occur, and thus the initiator and the receiver ( TARGET) setting is smooth, fast and safe.

Therefore, since there is no collision, a dead lock does not occur, thereby ensuring stable operation of the terminal.

Such a configuration of the present invention can be applied to short-range P2P communication equipment using Zigbee, infrared, and the like.

Although the present invention has been described in the embodiments as described above, the present invention is not necessarily limited to these embodiments, and various modifications can be made without departing from the spirit 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 scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

The present invention of the configuration as described above, there is an industrial use effect that the setting of the initiator of the P2P communication in the NFC method proceeds quickly and stably to improve the reliability.

In addition, there is a convenient effect in use that the data transmission and reception of P2P communication proceeds quickly to reduce the communication time.

Claims (12)

Application unit for recording the application program and the operation data for P2P communication in the NFC method; A controller for generating a random number having a serial number as SEED by a program loaded from the application unit, and controlling and monitoring a P2P connection request signal to be generated by a timeslot generated by the random number; An RN unit generating a random number having a serial number of SEED under the control of the controller; A high frequency unit generating and transmitting or receiving a P2P connection request signal as an NFC wireless signal under the control of the controller; An SN unit for providing a serial number recorded under the control of the controller; Sender determination apparatus of the NFC terminal configured to include. The method of claim 1, A slot unit generating a timeslot with a random number provided by the control of the controller; A keyboard unit connected to the controller and inputting a control command for P2P communication; Sender determination device of the NFC terminal is configured to further include. The method of claim 1, wherein the SN portion, Sender determination apparatus of the NFC terminal, characterized in that the configuration to provide the RN to the serial number recorded by the control of the control unit. The method of claim 3, wherein the serial number, Sender determination apparatus of the NFC terminal, characterized in that the electronic serial number. The method of claim 1, wherein the high frequency unit, Transmitter determination apparatus of the NFC terminal, characterized in that consisting of a wireless transmission and reception of the data signal of the NFC method in the radio frequency band allocated to the NFC method. The method of claim 1 or 2, wherein the control unit, Provide the serial number of the SN unit to the RN unit, provide a random number generated by the RN unit to the slot unit, generate a P2P connection request signal according to a time slot generated by the slot unit, and provide the radio frequency unit to the high frequency unit; When the high frequency unit receives a reply signal from the other party, the P2P communication is actively performed, and when the high frequency unit receives the P2P connection request signal from the other party, the P2P communication is passively performed. . If it is confirmed by the control unit to perform NFC communication, generating a random number with a serial number, generating a timeslot with a random number; Generating a P2P connection request signal according to the timeslot and wirelessly outputting the same to determine whether the terminal is connected to the other party in an NFC manner; If it is confirmed that the connection with the other party, the active process to set as a sender and actively proceed with NFC-type P2P communication; Sender determination device operating method of the NFC terminal comprising a. The method of claim 7, wherein A manual process of confirming that the connection with the other party is not successful in the checking process and setting the receiver as a receiver and manually performing NFC-type P2P communication when receiving the P2P connection request signal of the other party; Sender determination apparatus operating method of the NFC terminal further comprises. The method of claim 7, wherein the confirmation of the connection with the other party, A method for operating a sender determination apparatus of an NFC terminal, characterized by detecting and confirming a response reply signal to a P2P connection request signal transmitted from a counterpart. The method of claim 7, wherein the generating process, Confirming whether the control unit performs NFC by analyzing a control command provided from the keyboard unit; Generating a random number by providing a serial number of the SN unit as SEED to the RN unit when it is determined that the NFC communication is performed; Generating a timeslot by providing the generated random number to a slot; Sender determination device operating method of the NFC terminal, characterized in that it comprises a. The method of claim 7, wherein the checking process, Generating a P2P connection request signal through a time slot provided from a slot unit by the controller and providing the P2P connection request signal to a high frequency unit for wireless output; Checking whether the connection with the other party is successful by the wireless output; Sender determination device operating method of the NFC terminal, characterized in that it comprises a. The method of claim 8, wherein the manual process, Confirming, by the controller, whether a P2P connection request signal of the other party is received from the high frequency unit; Setting a receiver, returning a response signal, and manually performing P2P communication when the P2P connection request signal of the other party is received; Sender determination device operating method of the NFC terminal, characterized in that it comprises a.

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