KR20160094900A - Unificated Near Field Communication system using mobile, and the method therefor - Google Patents

Abstract

The present invention relates to an integrated near field communication (NFC) system using a mobile device and a method thereof. An NFC mobile device provides NFC information from an external NFC device in a P2P mode. Meanwhile, in the NFC system and method thereof, the NFC mobile device is configured to be set in a mode and a standard type to correspond to an NFC mode and a standard type of the external NFC device, thereby being capable of data communications without setting or selecting an NFC mode, a standard type, or a tag type of a random external NFC device.

Description

[0001] The present invention relates to an integrated short-range communication system using mobile and a method thereof,

The present invention relates to an integrated short range communication system using a mobile and a method thereof, in which an NFC mobile is set to a corresponding mode and a standard type according to an operation mode (NFC mode) and a standard type of an external NFC device, Data communication is possible without setting or selecting an operation mode, a standard type, and a tag type.

As a background technique for the near field communication (NFC) of the present invention, there is a technique for improving the reactivation of the NFC-F based remote NFC device of Korean Patent Laid-Open No. 10-2016-0018673 shown in FIG. Methods and apparatus. This technique can be configured to determine that the NFC-F based remote NFC device has been previously deactivated and to send a detection request message to allow the remote NFC device to receive the attribute request message as part of the device activation procedure. The polling NFC device may be configured to set a sleep flag to indicate that the deselected NFC-F based remote NFC device is in the sleep sub-state, and the polling NFC device may be configured to allow the remote NFC device Type 3 tag, and to reset the sleep flag to indicate that the remote NFC device is no longer in the sleep sub-state based on the determination.

As another background of the present invention, there is a communication device, a control method, a program, and a front end technology of Korean Patent Laid-Open Publication No. 10-2014-0141584 shown in FIG. The present invention relates to a communication apparatus, a control method, and a program for reliably selecting a desired target. The CLF transmits a polling command for selecting a candidate for a definite target received from an NFC reader to a target, In selecting a candidate, a P2P application is selected as the target of the highest priority, a candidate of the fixed target is selected, a confirmed target is selected based on commands other than the polling command received from the NFC reader, The priority of the P2P application is controlled to be lowered when the P2P application is not selected as the final target.

As another background of the present invention, there is a mobile terminal of Korean Patent Laid-Open Publication No. 10-2014-0110403 shown in FIG. 3 and its selective NFC tag recognition method. The present invention relates to a mobile terminal capable of preventing battery consumption and user inconvenience caused by an unintended NFC tag contact and a tag recognition operation due to contact of an IC card which does not require tag recognition, The method comprising: sensing an electronic tag in a predetermined screen state; Comparing the detected electronic tag with a block list; And skipping the recognition operation of the electronic tag if the detected electronic tag is included in the block list, and maintaining the screen state.

KR 10-2016-0018673 A KR 10-2014-0141584 A KR 10-2014-0110403 A KR 10-2015-0014497 A KR 10-1563953 B1 KR 10-1497165 B1

 ISO / IEC 18092: 2013, Information technology - Telecommunications and information exchange between systems - Near Field Communication - Interface and Protocol (NFCIP-1)  ISO / IEC 14443-1: 2016, Identification cards - Contactless integrated circuit cards - Proximity cards - Part 1: Physical characteristics  ISO / IEC 14443-2: 2010, Identification cards - Contactless integrated circuit cards - Proximity cards - Part 2: Radio frequency power and signal interface  ISO / IEC 14443-3: 2016, Identification cards - Contactless integrated circuit cards - Proximity cards - Part 3: Initialization and anticollision  ISO / IEC 14443-4: 2016, Identification cards - Contactless integrated circuit cards - Proximity cards - Part 4: Transmission protocol  ISO / IEC 15693-1: 2010, Identification cards - Contactless integrated circuit cards - Vicinity cards - Part 1: Physical characteristics  ISO / IEC 15693-2: 2006, Identification cards - Contactless integrated circuit cards - Vicinity cards - Part 2: Air interface and initialization

The present invention sets an operation mode, a standard type, and a tag type for an arbitrary external NFC device by setting an NFC mobile as a corresponding mode and a standard type according to an operation mode (NFC mode) and a standard type of an external NFC device The present invention provides an integrated short range communication system using mobile and a method thereof, which enables data communication without selecting a mobile communication terminal.

The present invention provides NFC information from an external NFC device in a P2P mode so that the NFC mobile is configured to be set to a corresponding mode and a standard type according to an operation mode (NFC mode) and a standard type of an external NFC device The present invention provides an integrated short range communication system using mobile and a method thereof for enabling data communication without setting or selecting an operation mode, a standard type, and a tag type for an arbitrary external NFC device.

According to the present invention, the NFC mobile is set to the corresponding mode and standard type according to the operation mode (NFC mode) and the standard type of the external NFC device, And provides a technical effect of enabling data communication without setting or selecting an operation mode, a standard type, and a tag type.

As shown in FIG. 1 and FIG. 1, there are disclosed methods and apparatuses for improving the reactivation of NFC-F-based remote NFC devices
FIG. 2 is another background art showing a configuration of a communication device, a control method, a program, and a front end technology
FIG. 3 shows another configuration of a mobile terminal and its selective NFC tag recognition method technology
Figure 4 shows the NFC standard structure proposed in the near field communication (NFC) forum
Figure 5 shows the functional relationship of mode-specific standards for NFC mobile.
FIG. 6 shows the tag type 1, 2, 3, 4 in the NFC read / write mode.
7 shows the structure of an NDEF (NFC data exchange format)
Figures 8 and 9 show the detail relationship of the standard specifications for each NFC mode
FIG. 10 is a graph showing the relationship between the NFC modes of the present invention
11 is an example of NFC information transmitted in the P2P mode from the external NFC device of the present invention to the NFC mobile side
12 shows the configuration of the NFC mobile of the present invention
FIG. 13 is a diagram illustrating a driving method of the integrated short-range communication system using the mobile of the present invention

The following merely illustrates the principles of the invention. Accordingly, those skilled in the art will be able to devise various apparatuses and drive methods embodying the principles of the invention and falling within the spirit and scope of the invention, even if not explicitly described or illustrated herein. It is to be understood that all of the conditional terms and embodiments recited herein are expressly intended to be purely for purposes of understanding the concepts of the present invention and are not intended to be limiting to such specifically recited embodiments and conditions . It is also to be understood that the detailed description, as well as the principles, aspects and embodiments of the invention, as well as specific embodiments thereof, are intended to cover structural and functional equivalents thereof.

The above objects, features and advantages will become more apparent from the following detailed description in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 shows an NFC standard structure proposed in a near field communication (NFC) forum. The NFC Forum defines the RF layer / tag description, mode switching procedure, LLCP (protocol) definition for P2P, binding procedure with other protocols such as IP, NFC Tag Type definition, data exchange format and standard record type definition, Card Emulation mode definition , Use case information is provided as standard. In the standard structure, the NFC operation mode is classified into a peer to peer (P2P) mode, a read / write mode, and a card emulation mode. P2P (peer to peer) mode is a mode for transmitting / receiving data between NFC devices, and is used for data transfer between devices, personal remittance, M2M and the like. The read / write mode is a mode in which a device having an NFC means such as a mobile device can read information stored in an NFC tag and can record information in a tag. The read / write mode is a mode in which a skirt poster, It is used to provide information on works. The card emulation mode is a mode in which the apparatus having the NFC means provides the operation of the contactless card and is used for credit card, traffic card, access card, membership card, electronic ticket, A subscriber identification module (SIM) is also used for data security.

FIG. 5 illustrates the functional relationship of mode-specific standards for NFC mobile. NFC is classified into an active mode for communication between a reader and a reader and a passive mode for communication between a reader and a tag according to a communication mode of operation. ) As an initiator, and a device that performs a role of a tag as a target. In the active mode, both the initiator and the target communicate using an RF field of 13.56 MHz. In a passive mode, an initiator generates an RF field, And communicates in response to the instruction of the initiator. Therefore, a mobile having the NFC means is manufactured so as to be able to support both the functions of the reader and the writer, and the active mode and the passive mode.

The peer to peer mode is specified to be supported by the ISO 18092 standard, the read / write mode is ISO 14443 / ISO 15693 / FeliCa, the card emulation mode is the ISO 14443 standard Is applied.

Peer to peer (P2P) mode for NFC mobile is configured to exchange data through two-way communication between NFC mobile and other NFC devices. In the read / write mode, NFC mobile reads information from external passive smart card or tag and writes the information as a writer. In card emulation mode, the NFC mobile acts as a passive tag for an external active reader / writer.

FIG. 6 shows the details of tag type 1, 2, 3 and 4 in contrast to FIG. 5 in the NFC read / write mode. In the NFC read / write mode, the modulation method and coding method of the RF interface using 13.56 MHz and the bit rate (frequency division) of the transmission data are different according to the tag type, so that it can be realized as a single hardware (chipset). Therefore, the tag type distinguishes the tag type data by the data structure of the packet received by the reader, that is, the protocol.

FIG. 7 shows the structure of an NDEF (NFC data exchange format), which is a data format stored in a tag for NFC data exchange. The NDEF message is composed of a plurality of records R1 to Rt, and each record is assigned with a bit indicating a message begin (MB) and a message end (ME) at the beginning. Therefore, the MB bit of the first record is set to '1', and the ME bit of the last record is set to '1' to distinguish one NDEF message. The NFC reader receives the NDEF record, reads a type name field definition (TNF) bit, and performs an application according to the type of the tag.

FIGS. 8 and 9 show the detailed relationship between the NFC mode standard specification and the NFC mode standard specification with respect to the standard specification as described above. As shown in FIG. 8, peer to peer (P2P) mode is a standard of ISO 18092, and data can be exchanged between an NFC mobile and an external NFC device. In Read / Write mode, Reads / writes a type of tag that can be defined by NDEF including forum tag types 1, 2, 3 and 4, and a smart card of ISO 15693, ISO 14443 type A, B, F, and ISO 18092 types. In NFC card emulation mode, NFC mobile can provide card information of type A, B, B 'and F of ISO 14443 standard for NFC point of sale (POS) terminals or contactless card readers. In the peer-to-peer (P2P) mode and the NFC card emulation mode, the external NFC device operates as an initiator of an active mode. In the read / write mode, NFC mobile provides a magnetic field of 13.56 MHz as an initiator, and a passive mode tag or a smart card converts the magnetic field into a power source to transmit the built-in data to the NFC mobile, It is possible to record the data transmitted from the mobile.

In the Read / Write mode, the NFC mobile performs an initiator function, and the tag or smart card corresponding to the target has a passive mode as a basic configuration as described above, As shown in FIG. 9, the external mobile device may be configured to perform a role of a tag or a smart card in a virtual manner.

FIG. 10 shows the functional relationship of each of the NFC modes of the present invention. In the communication between the NFC mobile 100 and the external NFC device 200, the NFC mobile 100 is set as a target of a peer to peer mode as an initial condition, and the external NFC device 200 And is set as an NFC initiator in peer to peer (P2P) mode. First, the external NFC device 200 transmits an NFC device code to the NFC mobile 100, an NFC mode for information transmission with the external NFC device 200, and NFC information including a standard type of information to be transmitted, At this time, the external NFC device 200 periodically transmits NFC information, for example, at intervals of 1 to 2 seconds.

When the NFC mobile 100 receives NFC information transmitted from the external NFC device 200 as a peer to peer mode target, the NFC mobile 100 transmits the received NFC device code, the NFC mode, And performs data communication with the base station 200.

Accordingly, the user of the NFC mobile 100 can perform data communication with the corresponding external NFC device 200 without setting or selecting an operation mode, a standard type, and a tag type for data communication with the external NFC device 200 have.

FIG. 11 shows an example of NFC information transmitted in the P2P mode from the external NFC device 200 to the NFC mobile 100 side in the integrated short-range communication system and method using the mobile of the present invention. The NFC information of the present invention includes an NFC ID for identifying the external NFC device 200, an NFC mode for the external NFC device 200, and a standard type for data communication with the external NFC device 200, And are arranged in the respective fields set in the NFC information. In addition, a reserved field may be allocated to the NFC information to include additional information required for the external NFC device 200. [

Therefore, the NFC mobile 100 provided with the NFC information can be configured to be set to a mode and a standard type corresponding to the operation mode (NFC mode) and the standard type of the external NFC device 200, Data communication is possible without setting or selecting an operation mode, a standard type, and a tag type for the NFC device 200.

12 shows a configuration of an NFC mobile 100 for an integrated short range communication system using the mobile and a method thereof according to the present invention. In order to clarify the characteristic configuration of the present invention, the illustrated mobile is omitted from the general mobile communication configuration.

The NFC mobile (100) of the present invention comprises:

An NFC controller 102 for controlling the NFC mobile 100 and setting an NFC mode and a standard type of the NFC mobile 100 in accordance with NFC information provided from the external NFC device 200 );

An NFC air interface 104 connected to the NFC controller 102 to perform NFC transmission / reception with respect to the external NFC device 200;

An NDEF storage unit 106 for storing an NFC operation mode (NFC mode) and an NDEF (NFC data exchange format) as a standard type data format;

A packet buffer (108) for storing a data packet to be transmitted to the NFC air interface (104) and a received data packet;

An NFC mode in which the NFC mobile 100 can be set up and a mode / standard type storage unit 110 for storing standard type information;

An NFC information memory 112 for storing NFC information (NFC information) provided from the external NFC device 200;

An application module table 114 for matching an application module according to an NFC operation mode (NFC mode) and a standard type;

An NFC access data table 116 for matching data for communication with the external NFC device 200 from the NFC mobile 100 according to the NFC operation mode (NFC mode) and the standard type;

An application module storage unit 118 for storing an application module corresponding to the application module table 114 according to an NFC operation mode (NFC mode) and a standard type;

An NFC access data storage unit 120 for storing data for communicating with the external NFC device 200 from the NFC mobile 100 according to the NFC operation mode (NFC mode) and the standard type by the NFC operation mode (NFC mode) ;

.

FIG. 13 illustrates a method of driving an integrated short-range communication system using the mobile of the present invention. The driving method of the present invention comprises:

S100: Start of driving of the NFC mobile 100;

S110: the NFC mobile 100 is set and operated as a target of the P2P mode by the NFC controller 102 of the NFC mobile 100;

S120: Determining whether or not an RF field of 13.56 MHz is detected by the NFC controller 102 to the NFC air interface 104;

S180: When the RF field is detected in step S120, the NFC controller 102 maintains the NFC mobile 100 as a target of the P2P mode for n [msec];

At this time, the time of n [msec] for keeping the NFC mobile 100 as the target of the P2P mode is set to 1-5 [msec] for reception of the NFC packet.

- S190: In step S180, it is determined whether a P2P packet of NFC information provided from the external NFC device 200 is received by the NFC controller 102. If the P2P packet of NFC information is not received, the process is repeated from step S110 ;

S200: When the P2P packet of the NFC information is received in step S190, the NFC controller 102 receives the NFC mode and the standard type of the external NFC device 200 from the P2P packet of the received NFC information Shipping stage;

S210: the NFC controller 102 sets the NFC mobile 100 to correspond to the NFC mode and the standard type read out in the step S200, and performs the data communication and the application module;

S220: the data communication between the external NFC device 200 and the NFC mobile 100 and the termination of the application module;

S230: The NFC controller 102 determines whether there is an NFC function termination input for the NFC mobile 100. If there is no NFC function termination input, the procedure repeats from S110 again.

S240: If it is determined in step S230 that there is an NFC function termination input, the NFC controller 102 terminates the NFC function of the NFC mobile 100;

.

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If it is determined in step S120 that the RF field of 13.56 MHz is not detected by the NFC controller 102 to the NFC air interface 104,

S130: The NFC controller 102 determines whether there is a read request input (key input, touch screen, etc.) of a manual tag or a smart card in Read / Write mode, and repeats the process from step S110 if there is no input of a read request step;

S140: the NFC controller 102 sets the NFC mobile 100 to the Read / Write mode when there is a read request input in step S130;

- S150: Completing and completing data communication and application module for external passive tag or smart card;

S160: Deactivating the Read / Write mode of the NFC mobile 100 by the FC controller 102;

And performs step S230.

According to the present invention, the NFC mobile 100 provides the NFC information in the P2P mode from the external NFC device 200 by using the mobile integrated unicast communication system and the method thereof, (NFC mode) of the external NFC device 200 and a corresponding mode and a standard type according to the standard type so that the operation mode, the standard type, and the tag type can be set or not selected for any external NFC device 200 Data communication is possible.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It goes without saying that various modifications and variations are possible within the scope of equivalence of the scope.

100: NFC Mobile 102: NFC controller
104: NFC air interface 106: NDEF storage unit
108: Packet buffer 110: Mode / standard type storage unit
112: NFC information memory 114: Application module table
116: NFC access data table 118: Application module storage unit
200: External NFC device

Claims (5)

In an integrated short-range communication system using a mobile between an NFC mobile (100) and an external NFC device (200)
As an initial condition, the NFC mobile 100 is set as a target of P2P (peer to peer) mode,
The external NFC device 200 is set as an NFC initiator in a peer to peer (P2P) mode,
The external NFC device 200 transmits an NFC device code to the NFC mobile device 100, an NFC mode for information transmission with the external NFC device 200, and NFC information including a standard type of information to be transmitted, Lt; / RTI >
When the NFC mobile 100 receives NFC information transmitted from the external NFC device 200 as a peer to peer mode target, the NFC mobile 100 transmits the received NFC device code, the NFC mode, And the data communication with the mobile communication terminal (200)
The method of claim 1,
An NFC ID for identifying the external NFC device 200,
An operation mode (NFC mode) of the external NFC device 200,
A standard type for data communication with the external NFC device 200,
Are arranged in respective fields defined by codes, respectively,
Wherein the NFC apparatus (200) is configured to allocate a reserved field to the NFC apparatus (200) and to include additional information required for the NFC apparatus (200)
In an integrated short-range communication system using a mobile between an NFC mobile (100) and an external NFC device (200)
The NFC mobile (100) comprises:
An NFC controller 102 that controls the NFC mobile 100 and sets an NFC mode and a standard type of the NFC mobile 100 in accordance with NFC information provided from the external NFC device 200 );
An NFC air interface 104 connected to the NFC controller 102 to perform NFC transmission / reception with respect to the external NFC device 200;
An NDEF storage unit 106 for storing an NFC operation mode (NFC mode) and an NDEF (NFC data exchange format) as a standard type data format;
A packet buffer (108) for storing a data packet to be transmitted to the NFC air interface (104) and a received data packet;
An NFC mode in which the NFC mobile 100 can be set up and a mode / standard type storage unit 110 for storing standard type information;
An NFC information memory 112 for storing NFC information (NFC information) provided from the external NFC device 200;
An application module table 114 for matching an application module according to an NFC operation mode (NFC mode) and a standard type;
An NFC access data table 116 for matching data for communication with the external NFC device 200 from the NFC mobile 100 according to the NFC operation mode (NFC mode) and the standard type;
An application module storage unit 118 for storing an application module corresponding to the application module table 114 according to an NFC operation mode (NFC mode) and a standard type;
An NFC access data storage unit 120 for storing data for communicating with the external NFC device 200 from the NFC mobile 100 according to the NFC operation mode (NFC mode) and the standard type by the NFC operation mode (NFC mode) ;
The mobile communication system comprising:
A method for operating an integrated short distance communication system using a mobile between an NFC mobile (100) and an external NFC device (200)
S100: Start of driving of the NFC mobile 100;
S110: the NFC mobile 100 is set and operated as a target of the P2P mode by the NFC controller 102 of the NFC mobile 100;
S120: Determining whether or not an RF field of 13.56 MHz is detected by the NFC controller 102 to the NFC air interface 104;
S180: When the RF field is detected in step S120, the NFC controller 102 maintains the NFC mobile 100 as a target of the P2P mode for n [msec];
At this time, the time of n [msec] for keeping the NFC mobile 100 as the target of the P2P mode is set to 1-5 [msec] for reception of the NFC packet.
- S190: In step S180, it is determined whether a P2P packet of NFC information provided from the external NFC device 200 is received by the NFC controller 102. If the P2P packet of NFC information is not received, the process is repeated from step S110 ;
S200: When the P2P packet of the NFC information is received in step S190, the NFC controller 102 receives the NFC mode and the standard type of the external NFC device 200 from the P2P packet of the received NFC information Shipping stage;
S210: the NFC controller 102 sets the NFC mobile 100 to correspond to the NFC mode and the standard type read out in the step S200, and performs the data communication and the application module;
S220: the data communication between the external NFC device 200 and the NFC mobile 100 and the termination of the application module;
S230: The NFC controller 102 determines whether there is an NFC function termination input for the NFC mobile 100. If there is no NFC function termination input, the procedure repeats from S110 again.
S240: If it is determined in step S230 that there is an NFC function termination input, the NFC controller 102 terminates the NFC function of the NFC mobile 100;
A method for driving an integrated short range communication system using a mobile
5. The method of claim 4,
If it is determined by the NFC controller 102 that the RF field of 13.56 MHz is not detected by the NFC air interface 104;
S130: The NFC controller 102 determines whether there is a read request input (key input, touch screen, etc.) of a manual tag or a smart card in Read / Write mode, and repeats the process from step S110 if there is no input of a read request step;
S140: the NFC controller 102 sets the NFC mobile 100 to the Read / Write mode when there is a read request input in step S130;
- S150: Completing and completing data communication and application module for external passive tag or smart card;
S160: Deactivating the Read / Write mode of the NFC mobile 100 by the FC controller 102;
And performs the step S230. The method for driving the integrated short range communication system using the mobile

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