公开(公告)号：US09084229B2

公开(公告)日：2015-07-14

申请号：US14033217

申请日：2013-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

IPC: H04W72/08 ,  H04W24/02 ,  H04W72/02 ,  H04B7/02

CPC classification number: H04W72/02 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B17/345 ,  H04L1/0026 ,  H04L25/03904 ,  H04W24/02

Abstract: A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations.

公开(公告)号：US08707120B2

公开(公告)日：2014-04-22

申请号：US13720914

申请日：2012-12-19

Applicant: LG Electronics Inc.

Inventor： Jin Young Chun ,  Dong Guk Lim ,  Sung Ho Park ,  Ja Ho Koo ,  Bin Chul Ihm ,  Wook Bong Lee

IPC: H04L1/18

CPC classification number: H04W72/04 ,  H04L1/1607 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0055

Abstract: A method of transmitting an acknowledgment (ACK)/non-acknowledgement (NACK) signal in a wireless communication system includes assigning at least one ACK channel among a plurality of ACK channels which share an ACK channel region for transmitting the ACK/NACK signal, and transmitting the ACK/NACK signal through the at least one ACK channel, wherein the ACK channel region includes at least one tile including a plurality of data subcarriers, and the ACK/NACK signal of each ACK channel is indicated by mapping different orthogonal vectors respectively to the plurality of ACK channels in the tile.

Abstract translation: 在无线通信系统中发送确认（ACK）/非确认（NACK）信号的方法包括在共享用于发送ACK / NACK信号的ACK信道区域的多个ACK信道中分配至少一个ACK信道，以及 通过所述至少一个ACK信道发送所述ACK / NACK信号，其中所述ACK信道区域包括包括多个数据子载波的至少一个瓦片，并且通过将不同的正交向量分别映射到每个ACK信道的ACK / NACK信号 该瓦片中的多个ACK信道。

公开(公告)号：US20140016508A1

公开(公告)日：2014-01-16

申请号：US14033217

申请日：2013-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

IPC: H04W72/02

CPC classification number: H04W72/02 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B17/345 ,  H04L1/0026 ,  H04L25/03904 ,  H04W24/02

Abstract: A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations.

Abstract translation: 公开了一种在具有多小区环境的通信系统中减少小区间干扰的方法和通过协作MIMO方案发送信号的方法。 用于由移动站发送协作MIMO通信系统中的预编码信息的方法的示例包括基于服务基站的信号强度来确定包括包括服务基站的多个基站的预编码矩阵的预编码矩阵集合 并且将关于预编码矩阵集的信息发送到服务基站。 小区边缘的移动台使用与相邻基站协作的关于预编码矩阵集的信息执行协同MIMO模式或小区间干扰减轻模式。