Samsung Electronics Co., Ltd.

Other

Seong-Soo Kim

Chang-Yeul Kwon

Ji-Sung Oh

Jae-min Lee

Ki-bo Kim

Guoping Fan

So-young Lee

Jae-Min Lee

Yong-kuk You

Se-young Shin

Jae-hwa Kim

Chi-Man Park

Choong-Hoon Lee

Sang-su Choi

Myung-Ha Kuh

Ki-Bo Kim

Se-Young Shin

Provided are a wireless network system and a method of configuring the same, more particularly, a wireless network system and a method of configuring the same, in which a wireless network station desiring to transmit or receive data in a high-frequency band notifies a wireless network coordinator of its carrier transmission method to enable the wireless network coordinator to efficiently manage a network. An apparatus for transmitting or receiving data includes: a request command generation unit which generates a request command to secure network resources required to transmit or receive data before actually transmitting or receiving the data over a network; and a communication unit which transmits the request command.

Wireless network system and method of configuring the same

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.

Method and apparatus for performing piconet coordinator handover in wireless personal area network

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.

Provided are a method and an apparatus for generating an acknowledgement (ACK) frame. The method includes: receiving a data frame; first determining whether sub-frames included in the received data frame are coded in an unequal error protection (UEP) mode; and based on the determination of the first determining, generating the ACK frame including a first ACK field indicating reception of each of the sub-frames or second ACK field indicating reception of each first type bit and second type bit in the sub-frames.

Method and apparatus for generating acknowledgement 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.

Method and apparatus for generating data frame

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.

Method and apparatus for allocating channel time in wireless personal area network

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

An apparatus and method for searching for erroneous data is provided. The method of searching for erroneous data includes checking received data using an error-checking field included in the received data, and compensating for erroneous data of the checked data.

Apparatus and method for searching for erroneous data

Provided are a data transmission apparatus and method which apply an appropriate coding rate according to significance of bits or bit groups included in uncompressed data and retransmit all or part of the data when a transmission error occurs in the data while the data is being transmitted over a wireless network. The data transmission apparatus includes a mode termination unit which determines a retransmission mode for an initial transmission packet which has a transmission error; a packet generation unit which generates a retransmission packet, which includes at least part of the initial transmission packet, according to the determined retransmission mode; and a communication unit which transmits the retransmission packet through a communication channel.

Data transmission apparatus and method for applying an appropriate coding rate

A method of encrypting data is provided. The method includes dividing data in packet units into N data blocks; generating an initial counter value using a random number used for generating an encryption key for encrypting the data blocks; generating N counter values by increasing the initial value by a predetermined value N times and encrypting the N counter values using the encryption key; and performing an exclusive OR operation on the N encrypted counter values and the N data blocks.

Method and apparatus for encrypting 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.

A method of protecting important data in digital content and an apparatus therefor are provided. The method includes: receiving digital content which includes first important data; receiving reference data which includes second important data and authentication data for verifying whether the first important data is modified; and selectively correcting the first important data included in the digital content based on the reference data.

Method for protecting important data of contents and apparatus therefor

A beacon packet is provided. The packet includes a first information field that includes channel-time-allocation information in a wireless network; and information about whether there is residual channel time that can be allocated to a device that belongs to the wireless network.

Method and apparatus for wireless communication in high-frequency band

A method and apparatus of transmitting data using authentication between a first device and a second device are provided. The method includes transmitting an encrypted certificate of the first device using a shared key shared by the first device and the second device, receiving authentication key generation information for generating an authentication key, which is received when it is determined that the certificate of the first device is valid and not revoked, generating a first random number and generating an authentication key based on the first random number and the authentication key generation information, and encrypting and transmitting data using the authentication key.

Method and apparatus for transmitting data using authentication

A method and apparatus for efficiently transmitting large multimedia data over a wireless network are provided. A wireless device includes a device information reading unit which receives and reads information regarding available capabilities of devices included in a wireless network; a control unit which selects a first device which can process a video stream and a second device which can process an audio stream from the devices based on the information; a stream generation unit which generates a video stream and an audio stream which form the same content; and a wireless transmission/reception unit which transmits the generated video stream to the first device and transmits the generated audio stream to the second device.

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Seoul, South Korea

Seong-Soo Kim