Patent application number | Description | Published |
20110149806 | METHOD AND APPARATUS FOR SERVICE DISCOVERY IN WI-FI DIRECT NETWORK - A method and an apparatus for service discovery in a Wi-Fi direct (WFD). The method includes: generating by a first WFD device a service discovery request frame for discovering whether a service is supported by a second WFD device in the WFD network; transmitting the generated service discovery request frame from the first WFD device to the second WFD device; and receiving at the first WFD device a service discovery response frame from the second WFD device in response to the transmitted service discovery request frame, wherein the service discovery request frame and the service discovery response frame are generated by using a Wi-Fi protected setup (WPS) information element (IE). | 06-23-2011 |
20110185200 | METHOD AND APPARATUS FOR WAKING DEVICE FROM POWER SAVE MODE - A method for waking a device from a power save mode to an active mode includes: transmitting, by a first device, a magic packet through a predetermined channel to a second device, which operates in the power save mode by repeating a doze state and an awake state according to a predetermined period of time, for notifying the second device to switch to the active mode; and retransmitting the magic packet to the second device through the predetermined channel if a response to the magic packet has not been received from the second device and a predetermined time has not elapsed after transmitting the magic packet through the predetermined channel. | 07-28-2011 |
20120057536 | METHOD AND APPARATUS FOR SUPPORTING MULTI-BAND WIFI - Provided are a method and apparatus for supporting a multiband wireless fidelity (WiFi). The method for supporting the multiband WIFI includes: assigning a category and a frequency band for traffic, based on one or more characteristics of the traffic; packetizing the traffic in a media access control (MAC) unit corresponding to the assigned frequency band; and transmitting the packetized traffic by using the assigned frequency band in a physical layer (PHY) unit corresponding to the assigned frequency band. | 03-08-2012 |
20120127981 | METHOD AND DEVICE FOR SENDING PACKETS ON A WIRELESS LOCAL AREA NETWORK - Provided are a method and an apparatus for transmitting a packet in a wireless local area network (LAN), the method including determining whether a packet, which does not expire during the current transmission opportunity (TXOP) but will expire before a next TXOP is secured, exists or not based on a time-to-live (TTL) of the packet; if it is determined that the packet does not expire during an expansion of the current TXOP, expanding the current TXOP; and transmitting the packet to a receiving station. | 05-24-2012 |
20120243524 | METHOD AND DEVICE FOR INVESTIGATING WIFI DISPLAY SERVICE IN A WIFI DIRECT NETWORK - A method and device for discovering a WiFi display service in a Wi-Fi direct (WFD) network, the method includes: generating a service discovery request frame for discovering a service supported by a second WFD device in the WFD network; transmitting the service discovery request frame to the second WFD device; and receiving a service discovery response frame from the second WFD device in response to the service discovery request frame, wherein the service discovery request frame and the service discovery response frame are generated by using a generic advertising service (GAS) initial request frame of 802.11u and a GAS initial response frame of 802.11u, respectively. | 09-27-2012 |
20130282914 | METHOD AND APPARATUS FOR CONTENT PROTECTION IN WI-FI DIRECT NETWORK - A method of performing communication between a first device and a second device by using a Wi-Fi direct scheme is provided. The method may include receiving, by the first device, information on relating to a content protection capability of the second device in during a device discovery procedure; and determining, by the first device, whether to perform a connection setup procedure with the second device based on the received information on relating to the content protection capability of the second device. | 10-24-2013 |
20130304794 | METHOD AND APPARATUS FOR TRANSMITTING USER INPUT FROM A SINK DEVICE TO A SOURCE DEVICE IN A WI-FI DIRECT COMMUNICATION SYSTEM - A method of performing communication between a sink device and a source device in a Wi-Fi direct network is provided. The method includes receiving a user's input, on a sink device, for controlling audio/video (AV) data received from the source device, generating a message for controlling the AV data based on the user's input, and transmitting the message to the source device through a Wi-Fi direct link. | 11-14-2013 |
20150309807 | METHOD AND APPARATUS FOR WAKING DEVICE FROM POWER SAVE MODE - A method for waking a device from a power save mode to an active mode includes: transmitting, by a first device, a magic packet through a predetermined channel to a second device, which operates in the power save mode by repeating a doze state and an awake state according to a predetermined period of time, for notifying the second device to switch to the active mode; and retransmitting the magic packet to the second device through the predetermined channel if a response to the magic packet has not been received from the second device and a predetermined time has not elapsed after transmitting the magic packet through the predetermined channel. | 10-29-2015 |