公开(公告)号：US20180063734A1

公开(公告)日：2018-03-01

申请号：US15805787

申请日：2017-11-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Hyung OH ,  Bang Chul JUNG ,  Hu JIN ,  Myung Sun SONG

IPC: H04W24/08 ,  H04W24/02 ,  H04B7/06 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04W24/08 ,  H04B7/0695 ,  H04W24/02 ,  H04W74/006 ,  H04W74/0833

Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.

公开(公告)号：US20150181611A1

公开(公告)日：2015-06-25

申请号：US14581430

申请日：2014-12-23

Applicant: Industry-Academic Cooperation Foundation Gyeongsang National University ,  Electronics and Telecommunications Research Institute

Inventor： Bang Chul JUNG ,  Won Yong SHIN ,  Hyun Jong YANG ,  Jae Joon PARK ,  Kwang Jae LIM ,  Jae Sun CHA ,  Eun Kyung KIM ,  Hyun LEE ,  Sung Cheol CHANG

IPC: H04W72/08

CPC classification number: H04B7/086 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0632 ,  H04W28/04

Abstract: A communication system configured to send data using an interference alignment scheme is disclosed herein. The disclosed communication system includes an MS and a BS. The disclosed BS sends data using a transmission beamforming matrix that minimizes intra-cell interference. The disclosed MS receives the data using a reception beamforming matrix that minimizes inter-cell interference. The BS sends information about a reference beamforming matrix to the MS, and sends a pilot signal to the MS using the reference beamforming matrix. The MS estimates an effective channel using the reference beamforming matrix, and calculates the intensity of an interference signal from an interference BS.

Abstract translation: 本文公开了配置为使用干扰对准方案发送数据的通信系统。 所公开的通信系统包括MS和BS。 公开的BS使用最小化小区内干扰的发送波束成形矩阵来发送数据。 所公开的MS使用最小化小区间干扰的接收波束形成矩阵来接收数据。 BS向MS发送关于参考波束成形矩阵的信息，并使用参考波束形成矩阵向MS发送导频信号。 MS使用参考波束成形矩阵估计有效信道，并且计算来自干扰BS的干扰信号的强度。

公开(公告)号：US20150373717A1

公开(公告)日：2015-12-24

申请号：US14744821

申请日：2015-06-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Hyung OH ,  Bang Chul JUNG ,  Hu JIN ,  Myung Sun SONG

IPC: H04W72/04 ,  H04W24/08

CPC classification number: H04W24/08 ,  H04B7/0695 ,  H04W24/02 ,  H04W74/006 ,  H04W74/0833

Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.

Abstract translation: 提供了一种干扰对准（IA）的帧传输方法并且控制该方法，包括通过测量接入点和用户终端之间的信道信息来计算基本业务集（BSS）的信道矩阵，执行奇异值分解（SVD） 基于所计算的信道矩阵，基于由信道矩阵执行的SVD，考虑与另一接入点相关联的干扰量来选择波束成形向量，以及基于所选择的波束成形向量计算泄漏干扰（LIF）值。