Electronics and Telecommunications Research Institute

Jai Hyung Cho

Sang Ho Lee

Jae Ho Kim

Mi Young Yun

Yeong Jin Kim

Doug Young Suh

Jee Hyeon Na

Dae Ik Kim

Chul Min Park

Jung Mo Moon

Sun Hwa Lim

Eun Hee Hyun

Hyun Suk Roh

Chul Keun Kim

Jin Woo Hong

Jong Soo Lim

Dae Sik Kim

Seok Ho Won

Ho Choong Cho

Eun Ju Park

A terminal that receives carrier signals with start point information indicated thereon from three or more base stations (BSs) including a serving BS, calculates a difference in phase angles between carrier signals of two BSs while changing the two BSs by using the start point information of the carrier signals of the two BSs among the three or more BSs, and calculates coordinates of the terminal by using the calculated differences in distance of arrival is provided.

Positioning method and apparatus using wireless signal

Provided is a multi-dimensional layered modulation transmitting and receiving apparatus and method for stereoscopic three-dimensional (3D) video data. The transmitting apparatus may convert multi-dimensional data to a plurality of stream data by mapping the multi-dimensional data to a complex number plane, and may transmit the plurality of stream data by mapping the plurality of stream data to dimensions divided based on a time and a space, respectively. The receiving apparatus may determine a signal strength of received signal, a performance, a power mode, may determine a service image corresponding to the signal strength, the performance, the power mode, may determine a dimension corresponding to the service image, and may receive stream data of the determined dimension.

Multidimensional layer sending-and-receiving device and method for stereoscopic three-dimensional video data

Provided is a method and apparatus for encoding and decoding in which block coding is applied. According to a method and apparatus for block coding encoding and decoding, a minimum quality seamless service may be provided by reliably recovering high importance data even though continuous data loss occurs in a wired and wireless transmission line. A transposed duplication calculation or a post duplication calculation may be performed with respect to the high importance data. Data of a predetermined lost time zone may be recovered by duplicated data of another time zone.

Method and apparatus for recovering burst data loss by duplicating block code symbols

Disclosed are a system and a method for receiving an MBMS broadcasting service. In the present invention, in a mobile communication/wireless communication system, an MBMS service is provided by synchronizing a unicast bearer with a multicast bearer through scheduling information mapping at the time of transmitting a broadcast/multicast service through a unicast. Further, the present invention presents even a method for improving quality of experience (QoE) of the service by providing the MBMS service through the multicast bearer and the unicast bearer simultaneously. According to the present invention, MBMS services of various service qualities can be provided depending on wireless quality of a terminal or the capability of the terminal at the time of providing the MBMS service.

System and method for receiving MBMS broadcasting service

Provided is a method and apparatus for reducing zapping delay, which may transmit base layer data for each burst in a time-slicing scheme, and output the base layer data of a channel to be changed at the time of changing the channel, thereby reducing the zapping delay.

Streaming server and mobile terminal for reducing channel-changing delay, and a method therefor

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Daejeon, South Korea

Jai Hyung Cho