Patent ID: 9386616
Filing Date: 2016-07-05
CPC Classification: H04W

Claim Text:
1. An inter-device communication method of a first device, the method comprising: searching for a second device supporting inter-device communication; receiving service information from the searched second device; determining that one of the first and second devices is a group owner and the other is a group client based on comparing the received service information of the second device with service information of the first device; receiving a group owner intent value of the second device from the second device; receiving a selection among the first device and the second device for setting a group owner intent value; setting a group owner intent value of the first device such that the group owner intent value of the device determined as the group owner is greater than the group owner intent value of the device determined as the group client based on comparing the group owner intent value of the first device with the group owner intent value of the second device when the first device is selected, and transmitting the group owner intent value of the second device as contained in a Group Owner Negotiation Response message to the second device when the second device is selected; and in response to receiving a user input by the first device, selecting the second device as the group owner, adjusting the group owner intent value of the second device to be greater than the group owner intent value of the first device and transmitting the adjusted group owner intent value of the second device to the second device, wherein the service information comprises at least one of device type information indicating one selected from between a mobile phone and a vehicle head unit, group owner request information, Internet access information, and environment setting information, and wherein the first device is a vehicle head unit including a display and the second device is a mobile terminal or a second vehicle head unit.