Samsung Electronics Co., Ltd.

Guoping Fan

Chang-Yeul Kwon

Jae-min Lee

Se-young Shin

Dong-Hwi Roh

Seong-Soo Kim

Young-jae Kim

Soo-Young Kim

Il-ju Na

Jae-Moon Jo

Jae-Min Lee

Seung-seop Shim

Seong-Wook Lee

Jae-moon Jo

Ho-seok Lee

Joong-suk Park

Myung-Ha Kuh

Yang-Iim Choi

Moon-young Choi

Seung-Seop Shim

Ho-Seok Lee

Se-Young Shin

Joong-Suk Park

An apparatus and method for wireless communications are provided. The apparatus for wireless communications includes a media access control processing unit providing a plurality of sub-packets, and a transmitting/receiving unit outputting a packet that includes the plurality of sub-packets using a plurality of transmission modes.

Apparatus and method for wireless communications

An apparatus and method for wireless communications are provided. The apparatus for wireless communications includes a receiving unit which receives a packet, which comprises a plurality of sub-packets, output from a transmitting device, and processes the received packet in a plurality of signal processing modes that correspond to a plurality of transmission modes applied to the received packet, and a media access control processing unit which acquires data from the sub-packets included in the processed packet.

A stored transmission packet having a structure intended for use in a new link-adaptation mechanism, and a method and an apparatus for transmitting the transmission packet using the same are disclosed. The structure includes a payload composed of a plurality of transmission data units, a MAC header appended to the payload, and a PHY header appended to the MAC header, wherein the payload includes a link recommendation command in which information on a transmission mode is recorded, among a link-adaptation mechanism including Link Assessment, in which the state of a channel used to transmit and receive the transmission packet and the quality thereof is assessed, Link Recommendation, in which a transmission mode suitable for a current channel state is recommended using the result of Link Assessment, and Link Adjustment, in which the channel state is adjusted using information on the recommended transmission mode.

Stored transmission packet intended for use in new link-adaptaton mechanism, and apparatus and method for transmitting and receiving transmission packet using the same

Provided are an apparatus and method for transmitting a packet. The apparatus and method indicate a policy with respect to an acknowledgement packet and a retransmission packet, which correspond to the type of data to be transmitted, in a packet included in the data. The apparatus includes a Media Access Control (MAC) control unit which determines the type of packet to be transmitted, and sets the packet to indicate an acknowledgement policy and a retransmission policy with respect to the packet; and a communication unit which transmits the packet.

Apparatus and method for transmitting packet

A method and apparatus for protecting against copying high definition (HD) contents transmitted in a wireless HD (WiHD) network by using a WiHD source or sink device, the method including: determining a type of copy protection of contents transmitted in the WiHD network; calculating accumulatively a number of media access control (MAC) sub-packets as a input counter information, wherein the MAC sub packets constitute a MAC payload including the contents; packetizing the type of copy protection and the input counter information into a MAC packet; and transmitting the MAC packet to a WiHD sink device.

Method and apparatus for protecting against copying contents by using WiHD device

A method of and an apparatus to improve stability and efficiency during data transmission performed over a wireless network includes transmitting a first data frame containing a plurality of data units to a receiving device, receiving from the receiving device a receipt of confirmation for each data unit received by the receiving device, and transmitting a second data frame containing at least one of the plurality of data units that have not been transmitted or received, according to the receipt of confirmation for each data unit received by the receiving device.

Method and apparatus to transmit and/or receive data via wireless network and wireless device

Provided are a apparatus and method for transmitting data and a apparatus and method for receiving data, in which a transmitting station sets priorities among a plurality of data to be transmitted and a receiving station processes the plurality of data according to the priorities. The apparatus for transmitting data includes a packet-generation module which generates a plurality of data and a packet that includes the plurality of data and that specifies priorities between the plurality of data; and a communication module which transmits the packet through a communication channel.

Apparatus and method for transmitting data and apparatus and method for receiving data

The invention relates to a structure of a transmission packet for a link adaptation mechanism that can efficiently transmits/receives uncompressed data using a link adaptation mechanism in a high-frequency wireless communication, and an apparatus and method of transmitting/receiving a packet using the same. According to an aspect of the invention, a structure of a transmission packet for a link adaptation mechanism includes a payload having a plurality of data units obtained through error correction encoding of uncompressed data at a predetermined coding rate, an MAC header being added to the payload and having a link adaptation field and a link adaptation extension field expressing presence/absence of the link adaptation field for transmission/reception of the uncompressed data, and a PHY header being added to the MAC header and including information about the coding rate and information about usability of an unequal error protection mode.

Structure of transmission packet for link adaptation mechanism, and transmitting/receiving device and method using the same

Provided is a method of transmitting information regarding a device in a wireless personal area network (WPAN). In the method, a probe request frame is received from one of devices belonging to the WPAN according to a common mode which is a physical layer (PHY) transmission mode being commonly supported by the devices, the probe request frame containing information requesting information regarding a PHY transmission mode supported by another specific device, a probe response frame containing the information regarding the PHY transmission mode supported by the specific device is generated, and then the probe response frame is transmitted to the device transmitting the probe request frame, according to the common mode.

Method and apparatus for transmitting information of device in wireless personal area network

A method and apparatus for efficiently retransmitting data in a wireless network environment are provided. The method includes transmitting a block comprising one or more data frames to a terminal, receiving an acknowledgement of receipt of the block from the terminal, and retransmitting a block comprising data frames that have not yet been received by the terminal to the terminal by referencing the acknowledgement of receipt. Accordingly, it is possible to enhance overall throughput by reducing receipt acknowledgement time during a data retransmission operation.

Method and apparatus for efficiently retransmitting data in wireless network environment

A method and apparatus for transmitting a data frame in a communication network, such as a wireless local area network (WLAN), a power line communication (PLC) network, or the like. A transmitter forms one expansion frame using more than one frame, transmits more than one generated expansion frame to a receiver, requests a block acknowledgement (ACK) frame for the transmitted expansion frames, and, after receiving the block ACK frame, re-transmits an expansion frame having an error by changing a transmission parameter.

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Suwon-si, South Korea

Guoping Fan