Patent application number | Description | Published |
20100238879 | METHOD OF EXCHANGING MESSAGES FOR TRANSMISSION POWER CONTROL BETWEEN DEVICES IN A WIRELESS NETWORK, AND DEVICES FOR THE SAME - A method of exchanging messages for link recommendation in a receiving device of a wireless network comprises receiving a first data packet from a transmitting device; and transmitting link recommendation information to the transmitting device, the link recommendation information including transmit power control (TPC) information for controlling transmission power to be used for a second data packet in the transmitting device. | 09-23-2010 |
20100246514 | METHOD OF EXCHANGING MESSAGE AND DEVICES IN WIRELESS NETWORK - A method of exchanging messages at a device in a wireless network comprises transmitting a change request message for requesting a change of a beacon position among configuration parameters of the wireless network to a coordinator; and receiving a response message in response to the request message from the coordinator. | 09-30-2010 |
20100309818 | METHOD OF CONTROLLING NETWORK IN WIRELESS NETWORK AND DEVICE - A method of controlling a network at a coordinator of a wireless network comprises receiving a beacon, which includes at least one of transmission coverage information associated with signal transmission coverage of the wireless network and ACK packet information indicating a type of an ACK packet transmitted from a plurality of devices for acknowledgement during reception of data packets, from a coordinator of the wireless network; receiving the data packets from a transmitting device of the wireless network; and transmitting an ACK packet having an ACK packet type determined based on the ACK packet type information included in the beacon to the transmitting device as a signal for acknowledgement of the data packets. | 12-09-2010 |
20100309869 | METHOD OF CHANNEL RESOURCE ALLOCATION AND DEVICES IN WIRELESS NETWORKS - A method of allocating channel resources from a first device to a second device in a wireless network comprises receiving channel resource allocation information from a coordinator of the wireless network to allocate the channel resources; transmitting data to the second device through the allocated channel resources; receiving channel resource request information from the second device to request the first device to allocate a part of the allocated channel resources; and deciding whether to allocate the part of the channel resources allocated from the coordinator, to the second device in accordance with the channel resource request information. | 12-09-2010 |
20100313082 | METHOD OF EXCHANGING MESSAGES AND SOURCE DEVICES - A method of exchanging messages, which are intended for streaming connection with a source device, in a sink device of a wireless network comprises transmitting a connect request message for data streaming to the source device; receiving a connect response message from the source device, the connect response message including connection information indicating the possibility of connection with the source device; and outputting a user interface indicating at least one of the connection information included in the connect response message and wait time information required for connection with the source device, on a display module. | 12-09-2010 |
20110019603 | METHOD OF EXCHANGING MESSAGES FOR TRANSMISSION POWER CONTROL BETWEEN DEVICES IN A WIRELESS NETWORK, AND DEVICES FOR THE SAME - A method of exchanging messages for link recommendation in a receiving device of a wireless network comprises receiving a first data packet from a transmitting device; and transmitting link recommendation information to the transmitting device, the link recommendation information including transmit power control (TPC) information for controlling transmission power to be used for a second data packet in the transmitting device. | 01-27-2011 |
20110019645 | METHOD OF EXCHANGING MESSAGE AND DEVICES IN WIRELESS NETWORK - A method of exchanging messages at a device in a wireless network comprises transmitting a change request message for requesting a change of a beacon position among configuration parameters of the wireless network to a coordinator; and receiving a response message in response to the request message from the coordinator. | 01-27-2011 |
20110019646 | METHOD OF EXCHANGING MESSAGE AND DEVICES IN WIRELESS NETWORK - A method of exchanging messages at a device in a wireless network comprises transmitting a change request message for requesting a change of a beacon position among configuration parameters of the wireless network to a coordinator; and receiving a response message in response to the request message from the coordinator. | 01-27-2011 |
20110110250 | METHOD OF ALLOCATING CHANNEL TIME, METHOD OF DETERMINING COMPATIBLE LINKS, AND APPARATUS FOR PROCESSING DATA - A method of searching a compatible beam link is disclosed. The present invention includes receiving a channel time for communicating data from a coordinator, the channel time being previously allocated for communicating data between other stations, determining an occurrence of interference during the allocated channel time, and transmitting a feedback signal to the coordinator, the feedback signal including an interference information indicating an occurrence of interference. According to embodiments of the present invention, stations of network search for compatible beams whenever necessary, whereby loads of energy management and operations of a main station can be reduced. | 05-12-2011 |
20110116429 | APPARATUS FOR CONTROLLING POWER OF WIRELESS DEVICE AND METHOD THEREOF - A method of controlling the power consumption of a wireless station is disclosed. The present invention includes waking-up a coordinator in a sleep state, entering an awake state and if a signal for turning on a peripheral station is received in the awake state, transmitting an awake message to the peripheral station via a beacon signal during a beacon timeslot. Accordingly, the power consumption of a coordinator in a WPAN network may be reduced, power control by a peripheral station may be facilitated, and inefficient operation and management of the network may be prevented. | 05-19-2011 |
20110128948 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA - Apparatus and method for random access control in a directional communication system is disclosed. The method includes omni-directionally transmitting start time and duration information associated with data to be transmitted, the duration information indicating a duration of transmission of the data to be transmitted to a target station within a random access period; and directionally transmitting, subsequent to the omni-transmitting, the data to the target station beginning at the start time. Data collision caused by overlapped antenna beams linking remote stations can be prevented and communication can be reliably performed. | 06-02-2011 |
20110136523 | APPARATUS FOR CONTROLLING TRANSMISSION DATA AND METHOD THEREOF - A method for controlling data transmission in a station in a wireless communication network, the method including: receiving feedback information including error information including a signal to noise ratio (SNR) from a target station, the error information being measured by the target station; and controlling transmission parameters of the transmit data in a transmitting station based on the error information, wherein controlling the transmission parameters includes: increasing the transmit power when the SNR is lower than a predetermined value; initiating a beam-tracking process when the SNR is still lower than the predetermined value after increasing the transmit power; and decreasing a data transmission rate when the SNR is still lower than the predetermined value after initiating the beam-tracking process. | 06-09-2011 |
20110158198 | APPARATUS FOR TRANSMITTING/RECEIVING BEACON SIGNAL AND METHOD THEREOF - Methods and apparatuses of transmitting a beacon using fragmentation are disclosed. One of the methods includes configuring a beacon in a manner that a schedule block selected for a specific wireless device (deice) only is included in an information element by a coordinator and transmitting the configured beacon to the specific wireless station directionally. Accordingly, an overhead of a beacon can be reduced in a manner of transmitting information specified to a station using a directional beacon or transmitting the beacon by dividing information contained in the beacon into several fragments. | 06-30-2011 |
20110280188 | PRE-CODING METHOD FOR SPATIAL MULTIPLEXING IN MULTIPLE INPUT AND OUTPUT SYSTEM - The present invention relates to a pre-coding method for spatial multiplexing, comprising the steps of: performing a beam search for beam forming with a receiver device equipped with multiple antennas to perform pre-coding for spatial multiplexing in a transmitter device equipped with multiple antennas; transmitting a first packet including at least one or more training sequences to the receiver device after completion of said beam search; receiving, from the receiver device, a second packet including feedback information for pre-coding, determined in the receiver device by using the training sequences; and performing pre-coding for spatial multiplexing, onto the data stream to be transmitted to the receiver device, by using the pre-coding matrix calculated on the basis of the feedback information. | 11-17-2011 |
20120082076 | METHOD AND APPARATUS FOR TRANSMITTING A PACKET IN A WIRELESS NETWORK - The present invention related to a method in which a transmitting device transmits a packet in a wireless network, wherein said method comprises: a step of receiving, from an upper layer, video data divided into a plurality of slices and compressed into one or more types of layers; a step of constructing a MAC packet such that information on the types of said one or more layers of the video data is included in a MAC header of the MAC packet; and a step of delivering the MAC packet to a lower layer to transmit the MAC packet to a receiving device. | 04-05-2012 |
20130188622 | METHOD OF CHANNEL RESOURCE ALLOCATION AND DEVICES IN WIRELESS NETWORKS - A method of allocating channel resources from a first device to a second device in a wireless network comprises receiving channel resource allocation information from a coordinator of the wireless network to allocate the channel resources; transmitting data to the second device through the allocated channel resources; receiving channel resource request information from the second device to request the first device to allocate a part of the allocated channel resources; and deciding whether to allocate the part of the channel resources allocated from the coordinator, to the second device in accordance with the channel resource request information. | 07-25-2013 |