Lg Electronics Inc.

Sungkyunkwan University

Korea Advanced Institute of Science and Technology

Hojin Song

Hanbyul Seo

Wan Gyun Choi

Dongin Kim

Byounghoon Kim

Taejin Park

Ilgeun Kwon

Jongyeol Ryu

Tae Yeong Kim

Yongki Lee

Bi Hong

Rosa Andre

Sucheol Ha

Iigeun Kwon

Heejung Jeoung

Yong Ki Lee

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting a content using a cache memory, and a method for transmitting, by a relay node, a content using a cache memory according to the present invention may comprise the steps of: storing a first content, received from a serving cell, in the cache memory; storing a second content, received from an adjacent cell or the serving cell, in the cache memory; selecting a content to be transmitted to a user equipment (UE) from among the first content requested by the UE and the second content which acts as interference to the first content; and transmitting the second content to the UE.

Method and device for transmitting/receiving data using cache memory in wireless communication system supporting relay node

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting a content using a cache memory, and a method for transmitting a content using a cache memory by a relay node according to the present invention may comprise the steps of: storing a first packet among a plurality of the packets constituting the content in the cache memory; decoding a second packet among the plurality of packets constituting the content; and when the second packet has been successfully decoded, combining the first packet and the second packet and transmitting the combined packet to a terminal, wherein the second packet is not already stored in the cache memory.

Method and apparatus for transmitting and receiving data using cache memory in wireless communication system supporting relay node

Disclosed in the present application is a method for a terminal receiving data in a wireless communication system. Specifically, the method comprises the steps of determining at least one transmission subject for the data among one or more auxiliary nodes and a base station; receiving a distributed code from the determined at least one transmission subject; and obtaining the data from the distributed code, wherein the at least one transmission subject is determined based on the sum of the distributed codes stored in the auxiliary nodes and the number of auxiliary nodes existing within a predetermined distance from the terminal.

Method for receiving signal using distribution storage cache retention auxiliary node in wireless communication system, and apparatus therefor

Disclosed is a method of controlling, by a device, power for guaranteeing the quality of service of a device to device (D2D) direct communication. In detail, the method comprises the steps of: receiving, from a base station, information containing at least one of channel information and information of a receiving side device in a D2D communication; estimating an uplink channel with the base station on the basis of the received information; and selecting a transmission power by comparing the channel gain value of the uplink channel with a threshold value for determining the maximum transmission power, and transmitting data to the base station using the selected transmission power, wherein the channel information comprises at least one of channel information of the D2D communication, uplink channel information between the device and the base station, and interference channel information between the device and the receiving side device in the D2D communication.

Power control method for guaranteeing quality of service of device to device direct communication and apparatus therefor

Disclosed is a method in which a base station (BS) transmits information to a plurality of terminals in a wireless communication system. Specifically, the method comprises the steps of: dividing the plurality of terminals into two or more groups according to a channel state of each of the BS and the plurality of terminals and a channel state between the plurality of terminals; and broadcasting the information to a first group among the two or more groups, wherein the first group transmits the information to another group among the two or more groups through D2D communication.

Broadcasting method using device-to-device (D2D) communication in wireless communication system

A service providing method providing at least one of service provided from a plurality of contents provider to clients includes receiving metadata related to at least one of service provided from the contents provider; converting the received metadata into the metadata of XML format; and providing the metadata of the XML format to the clients.

System, method and apparatus of providing/receiving service of plurality of content providers and client

A digital system and a method of processing service data thereof are disclosed. The digital system includes a first device configured to transmit at least one of device information and device location information of a first device to a second device which is connected to the first device, receive service data from the second device, the service data being extracted based upon at least one of the device information and the device location information of the first device, process and output the service data on a screen, transmit a command signal which is selected from the outputted service data to the second device and receive respond data corresponding to the command signal from the second device and outputting the respond data on the screen.

Growing community of inventors

Daejeon, South Korea

Hojin Song