Samsung Electronics Co., Ltd.

Kyle Kim

Jin Sae Jung

Jung Ho Kim

Eung Sun Kim

Ji Hoon Lee

Sung Won Lee

Hyun Cheol Park

Yong Sung Roh

Young Gon Choi

Hun Il Lim

Won-Keun Kong

Jin-Sae Jung

Su-myeon Kim

Jung-Min So

Hae Lyong Kim

Jae Hong Kim

Sang-Ho Lee

In-ho Park

In-Ho Park

A channel allocation method and a communication device are provided. The channel allocation method includes determining a communication device type based on information received from neighboring communication devices, allocating a channel according to the communication device type, and transmitting the communication device type and information about the allocated channel to the neighboring communication devices.

Channel allocation method in wireless mesh network and communication device using the method

Provided is a constellation rotation relay system and constellation rotation relay method which can acquire full diversity gain by performing constellation rotation for a channel matrix in a relay network when configuring a virtual MIMO channel. The constellation rotation system includes a matrix creator for creating a symbol matrix by configuring a symbol transmitted in parallel from a source of a relay network; and a constellation rotation unit constellation rotating the symbol in the symbol matrix by adding a constellation rotation matrix to the created symbol matrix.

Constellation rotation relay system and constellation rotation relay method

A method and system of relaying data are provided. The data is encoded into a turbo codeword by using a convolutional turbo code encoder, and the turbo codeword is transmitted from a source to a relay and a destination after puncturing by a first puncturing operation. The first punctured turbo codeword which is received in the relay is de-punctured and regenerated in a decoding operation and the regenerated turbo codeword is transmitted from the relay to the destination in punctured form after puncturing by a second puncturing operation. The punctured turbo codewords received from the source and the relay by the destination are totaled together as a totaled single turbo codeword and the totaled single turbo codeword is completely decoded to recover the data.

Method and system of relaying data

A service framework which can control devices to be controlled according to a device/service profile by creating the device/service profile to control a plurality of the controlled devices. Accordingly without using a middleware with a complicated structure, it is possible to control home devices.

Service framework for a home network

A proxying process method for traffic of a wireless node and a system using the method are provided. The proxying process method includes: maintaining a virtual node which stores a communication packet from a server, destined for a first node; and transmitting the stored communication packet from the virtual node to a second node when a transmission request for the communication packet is transmitted to the first node by the second node.

Proxying transaction method for processing function of wireless node in peer-to-peer overlay network

An apparatus and method for testing a ubiquitous service or a ubiquitous device using a uniform object model are provided. Because a virtual ubiquitous environment is constructed with devices, services, users, layouts, and the like, physical construction of the ubiquitous environment to test services or devices is not needed. Therefore, the effectiveness of the ubiquitous device or service can be confirmed without requiring a ubiquitous environment to be physically constructed. Additionally, time or cost of constructing a ubiquitous environment can be reduced. Because a variety of environments can be easily constructed through the test of devices or services, the performances of the devices or services can also be improved.

Method and apparatus for testing ubiquitous service or device using uniform object model

A system and method for saving sensor power consumption based on context information on a wireless sensor network are provided. Basic context information is received from inside and outside of a network system including at least one sensor, wherein context information based on the basic context information is determined by inference, a group of expected services corresponding to the context information is determined, a sensor operation mode according to the group of expected services is determined, and control data is transmitted to the sensor according to the sensor operation mode. Accordingly, a sensor operation mode is adaptively determined according to changes of context information so that power consumption of a sensor can be saved.

Growing community of inventors

Suwon-si, South Korea

Kyle Kim