| Patent application number | Description | Published |
|---|
| 20080247371 | WIRELESS NETWORK SYSTEM AND METHOD OF CONFIGURING THE SAME - Provided are a wireless network system and a method of configuring the same, in which stations that perform directional communication in a high-frequency band can share information regarding their communication capabilities with each other. An apparatus for managing stations that transmit/receive data using millimeter wave (mmWave) includes a communication capability information management module which receives an association request frame and determines the communication capability of an associating station that has transmitted the association request frame based on the association request frame; an information-frame-generation module which generates a wireless video area network (WVAN) information frame specifying the communication capability of the associating station; and a communication module which transmits the WVAN information frame, wherein the apparatus serves as a wireless network coordinator. | 10-09-2008 |
| 20080254752 | APPARATUS AND METHOD FOR TRANSMITTING DATA AND APPARATUS AND METHOD FOR RECEIVING DATA - Provided are an apparatus and method for transmitting data and an apparatus and method for receiving data, in which beam forming is performed in consideration of the communication capabilities of antennas of stations that perform directional communication in a high-frequency band. The apparatus for transmitting data includes a communication-capability-determination module which determines the communication capability of a receiver (RX) antenna module of a receiving station based on communication-capability data transmitted by the receiving station; an antenna-control module which controls a transmitter (TX) antenna module according to a beam-forming mode determined based on the communication capability of the RX antenna module and the communication capability of the TX antenna module; and a communication module which transmits data through the TX antenna module, wherein the beam-forming mode determines whether to transmit a TX antenna weight vector (AWV) pattern, whether to receive a feedback response pattern and whether to transmit an RX AWV pattern. | 10-16-2008 |
| 20080304514 | METHOD AND APPARATUS FOR COMMUNICATING WITH A HETEROGENEOUS TERMINAL - Provided are a method and apparatus for communicating with a heterogeneous terminal, more particularly, a method and apparatus for communicating with a heterogeneous terminal in which the communication between terminals using different modulation methods can be initialized by transmitting throughout a network a preamble with a waveform that is commonly used in the network. The apparatus includes a preamble-generation unit which generates a preamble having a plurality of sequences corresponding to a combination of a modulation method and a waveform that are to be applied to a packet; and a communication unit which attaches the preamble to the packet and then transmits the packet. | 12-11-2008 |
| 20090074010 | METHOD AND APPARATUS FOR GENERATING DATA FRAME - Provided is a method and apparatus for generating a data frame. The method includes: generating a plurality of subframes by using at least one medium access control (MAC) service data unit (MSDU); generating at least one field of an unequal error protection (UEP) field indicating whether UEP is applied to the subframes, a modulation and coding scheme (MCS) field indicating a modulation and coding scheme applied to each of the subframes, and a length field indicating the length of each of the subframes; and generating a data frame by using the subframes and the at least one of the UEP field, the MCS field, and the length field. | 03-19-2009 |
| 20090129337 | METHOD AND APPARATUS FOR PERFORMING PICONET COORDINATOR HANDOVER IN WIRELESS PERSONAL AREA NETWORK - Provided are a method and an apparatus for performing a piconet coordinator (PNC) handover in a wireless personal area network (WPAN) in which devices using various PHY transmission modes coexist. A device that enters the WPAN transfers information about its PHY transmission mode to the PNC through an association request message so that a problem that conventional services are not provided to a user in the WPAN due to a difference in PHY transmission modes of the devices during the PNC handover can be solved. | 05-21-2009 |
| 20090135772 | METHOD AND APPARATUS FOR ALLOCATING CHANNEL TIME IN WIRELESS PERSONAL AREA NETWORK - Provided is a method of allocating a channel time in a wireless personal area network (WPAN). In a WPAN where a parent piconet and at least one child piconet coexist, the method includes receiving a request frame transmitted from at least one of a plurality of child piconnet coordinators (PNCs) in order to request channel time allocation for data transmission, according to a common mode that is a PHY transmission mode commonly supported by a parent PNC and the child PNCs; and transmitting a beacon frame including channel time allocation information corresponding to the request frame to all the child PNCs of the WPAN. | 05-28-2009 |
| 20090175261 | METHOD AND APPARATUS FOR GENERATING PREAMBLE OF DATA PACKET - Provided are a method and apparatus for generating a preamble of a data packet. The method includes operations of generating a first field, a second field, and a third field; generating a synchronization sequence for synchronization between a data packet transmitter and a data packet receiver, generating a channel estimation sequence (CES) for estimation of a property of a channel in which the data packet is transmitted, and generating an additional sequence indicating an end position of the synchronization sequence in the preamble, and an additional sequence indicating information about a structure of the CES; and respectively recording the synchronization sequence, the additional sequences, and the CES in the first field, the second field, and the third field, thereby generating the preamble. | 07-09-2009 |
| 20110142160 | METHOD AND APPARATUS FOR TRANSMITTING URGENT DATA - A method and apparatus for transmitting urgent data by embedding the urgent data in normal data is provided. An urgent data signal is embedded in a normal data signal in such a way that the normal data signal is not affected, and then the urgent data signal is transmitted together with the normal data signal thereby stably transmitting urgent data without using a separate urgent data line. | 06-16-2011 |
