Samsung Electronics Co., Ltd.

Hua Li

Yongxing Zhou

Sung Jin Kim

Bruno Clerckx

Jae Hyung Kim

Jun Il Choi

Jin Kyu Bang

Han Bin Lee

Je Sun Moon

Chang Ha Yu

Sung Yeul Hong

An electronic device is provided. The electronic device includes a housing including a first plate, a second plate facing the first plate, and a side member surrounding a space between the first plate and the second plate and a circuit board, which is accommodated inside a housing and in which a wireless communication circuit is disposed. The second plate includes a slot filled with a non-conductive material. An area other than the slot is formed of a conductive material. The circuit board includes a conductive pattern formed on the circuit board along with the slot of the second plate, and the wireless communication circuit is configured to feed one point of the second plate adjacent to the slot to receive a signal of a first frequency band through an electrical path formed by the slot and to feed the conductive pattern to receive a signal of a second frequency band through the slot.

Electronic device comprising an antenna

Provided are a method and device for low-complexity feedback in a multiuser and multipoint cooperative communication system. The base station in the multiuser and multipoint cooperative communication system transmits a feedback stop signal to a terminal in order for the terminal receiving the feedback stop signal to stop feedback for a predetermined period. The terminal receiving the feedback stop signal stops the feedback of channel information for a period indicated by the feedback stop signal.

Method and device for low-complexity feedback in a multiuser and multipoint cooperative communication system

Provided herein is a method of designing a network codebook that may be shared by a plurality of base stations. Also provided herein is a feedback method of a terminal using the network codebook. The network codebook design method may design the network codebook by processing a pre-defined first codebook based on large scale fading of the base stations. The terminal may more effectively feed back a preferred matrix indicator with respect to the network codebook.

Method of designing codebook for network multiple input multiple output communication system and method of using the codebook

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Yongin-si, South Korea

Hua Li