# US 2014/0153557 A1 · Wi-fi direct connection method using access point and device having wi-fi direct connection function

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- Number: US 2014/0153557 A1
- Document ID: US20140153557A1
- Status: Published application
- Kind: A1
- Application number: 13/944,521
- Filed: 2013-07-17
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Deok-nam KIM
- Web page: https://patentgrep.com/patent/US20140153557A1

## CPC

- H04W 76/14: Direct-mode setup
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A Wi-Fi Direct connection method for a plurality of devices and a device having a Wi-Fi Direct connection function are disclosed. The Wi-Fi Direct connection method including connecting the plurality of devices through an access point (AP) for communication, making a request through a first device to a second device from among the plurality of devices through the AP to perform a Wi-Fi Direct connection, changing the state of the second device into a standby mode for the Wi-Fi Direct connection in a response to the request for the Wi-Fi Direct connection, performing provisioning discovery by the first device after making the request for the Wi-Fi Direct connection and exchanging a provisioning method with the second device; and accepting the Wi-Fi Direct connection in response to the second device receiving the provisioning discovery request from the first device which has requested the Wi-Fi Direct connection.

## Claims

### Claim 1

A Wi-Fi Direct connection method for a plurality of devices, the method comprising:
connecting the plurality of devices through an access point (AP);
making a request by a first device to a second device from among the plurality of devices through the AP in order to perform a Wi-Fi Direct connection;
changing the state of the second device into a standby mode for Wi-Fi Direct connection in a response to the request;
performing provisioning discovery by the first device after making the request for the Wi-Fi Direct connection and exchanging a provisioning method with the second device; and
accepting the Wi-Fi Direct connection in response to the second device receiving the provisioning discovery request from the first device which has requested the Wi-Fi Direct connection.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the second device is set in advance to accept the Wi-Fi Direct connection at all times when receiving the provisioning discovery request from the first device, which has requested the Wi-Fi Direct connection.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the Wi-Fi Direct connection requested by the first device is performed through a user input of the first device.

### Claim 4 (depends on 3)

The method according to claim 3, wherein the Wi-Fi Direct connection requested by the first device is performed by activating a button of a UI for the Wi-Fi Direct connection.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the first and second devices are aware of the other devices information in advance.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the first and second devices recognize in advance that each other is connected to the AP.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the second device transmits a provisioning discovery reply to the first device when receiving the provisioning discovery request from the first device.

### Claim 8

A device having a Wi-Fi Direct connection function, the device comprising:
a communicator configured to perform wired/wireless communication through an access point (AP);
a user input configured to be used to input a Wi-Fi Direct connection request to another device through the AP; and
a controller which transmits the input Wi-Fi Direct connection request to the another device connected to the AP, and performs a provisioning discovery with the another device and exchanges a provisioning method with the another device.

### Claim 9 (depends on 8)

The device according to claim 8, wherein the user input comprises a button of the UI for the Wi-Fi Direct connection which is configured to be changed into activation and deactivation states.

### Claim 10 (depends on 8)

The device according to claim 8, further comprising a storage which stores therein information related to the another device.

### Claim 11 (depends on 8)

The device according to claim 8, wherein the controller recognizes that the another device is connected to the AP.

### Claim 12 (depends on 1)

The device according to claim 1, wherein the communicator receives a provisioning discovery reply from the another device.

### Claim 13

A device having a Wi-Fi Direct connection function, the device comprising:
a communicator which performs wired/wireless communication through an access point (AP); and
a controller which is changed to a standby mode for the Wi-Fi Direct connection when receiving the Wi-Fi Direct connection request from another device connected to the AP through the communicator, and accepts the Wi-Fi Direct connection with the another device when receiving a provisioning discovery request from the another device which has requested the Wi-Fi Direct connection.

### Claim 14 (depends on 13)

The device according to claim 13, wherein the controller accepts the Wi-Fi Direct connection at all times with the another device when receiving a provisioning discovery request from the another device which has requested the Wi-Fi Direct connection.

### Claim 15 (depends on 13)

The device according to claim 13, further comprising a storage which stores therein information of the another device.

### Claim 16 (depends on 13)

The device according to claim 13, wherein the controller recognizes in advance that the another device is connected to the AP.

### Claim 17 (depends on 13)

The device according to claim 13, wherein the controller transmits a provisioning discovery reply to the first device when receiving a provisioning discovery request from the another device.

### Claim 18

A device having a Wi-Fi Direct connection function, the device comprising:
a controller which transmits an input Wi-Fi Direct connection request to another device connected to an access point, and performs a provisioning discovery with the another device and exchanges a provisioning method with the another device.

### Claim 19 (depends on 18)

The device having a Wi-Fi Direct connection function of claim 18, further comprising:
a communicator configured to perform wired/wireless communication through the access point.

### Claim 20 (depends on 18)

The device having a Wi-Fi Direct connection function of claim 18, further comprising:
a user input configured to be used to input a Wi-Fi Direct connection request to another device through the access point.
