公开(公告)号：US20170325126A1

公开(公告)日：2017-11-09

申请号：US15600946

申请日：2017-05-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Taehyun JEON ,  Myung-Soon KIM ,  Eun-Young CHOI ,  Sok-kyu LEE ,  Deuk-Su LYU

IPC: H04W28/06 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12 ,  H04L1/06

CPC classification number: H04W28/065 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0618 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

Abstract: In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.

公开(公告)号：US20130136075A1

公开(公告)日：2013-05-30

申请号：US13652412

申请日：2012-10-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L1/0026 ,  H04L1/0061 ,  H04L1/0643

Abstract: A data transmission apparatus in a communication system includes a verification unit configured to verify a basic frequency band capable of being used for transmitting and receiving data to and from a plurality of terminals, and a multi-bandwidth mode in the basic frequency band; a generation unit configured to generate data packets in the multi-bandwidth mode; and a transmission unit configured to transmit the data packets in the multi-bandwidth mode, wherein the multi-bandwidth mode includes a ½× bandwidth of the basic frequency band, a basic bandwidth, a 2× bandwidth of the basic frequency band, a 4× bandwidth of the basic frequency band and an 8× bandwidth of the basic frequency band.

Abstract translation: 一种通信系统中的数据发送装置，具备：验证部，其对能够用于从多个终端发送数据的基本频带和基本频带的多带宽模式进行验证; 生成单元，被配置为以多带宽模式生成数据分组; 以及发送单元，被配置为以多带宽模式发送数据分组，其中所述多带宽模式包括所述基本频带的1/2×带宽，基本带宽，所述基本频带的2×带宽，4 ×基本频带的带宽和基本频带的8×带宽。