公开(公告)号：EP2725731B1

公开(公告)日：2018-07-18

申请号：EP12831376.4

申请日：2012-09-18

申请人： Nippon Telegraph And Telephone Corporation

发明人： KUDO Riichi ,  MURAKAMI Tomoki ,  ISHIHARA Koichi ,  ICHIKAWA Takeo ,  ASAI Yusuke ,  KUMAGAI Tomoaki ,  MIZOGUCHI Masato

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04L25/02 ,  H04B7/06 ,  H04B7/0452 ,  H04B7/0417

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0634 ,  H04L25/0204 ,  H04L25/0226

摘要： The number of training signals for channel estimation is reduced. A wireless communication method includes: a step of reading, by an access point apparatus, stored training weights for a station which performs channel estimation; a step of generating, by the access point apparatus, a weight training symbol by multiplying the training weights by a training symbol and transmitting the generated weight training symbol; a step of estimating, by a station apparatus, weight channel information from the received weight training symbol; a step of transmitting, by the station apparatus, the weight channel information to the access point apparatus; a step of calculating, by the access point apparatus, transmission weights using the received weight channel information and the stored training weights; a step of transmitting, by the access point apparatus, a data signal in accordance with the transmission weights; and a step of calculating and storing, by the access point apparatus, new training weights using the weight channel information and the stored training weights.

公开(公告)号：EP2725731A1

公开(公告)日：2014-04-30

申请号：EP12831376.4

申请日：2012-09-18

申请人： Nippon Telegraph And Telephone Corporation

发明人： KUDO Riichi ,  MURAKAMI Tomoki ,  ISHIHARA Koichi ,  ICHIKAWA Takeo ,  ASAI Yusuke ,  KUMAGAI Tomoaki ,  MIZOGUCHI Masato

IPC分类号： H04J99/00 ,  H04B7/04

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0634 ,  H04L25/0204 ,  H04L25/0226

摘要： The number of training signals for channel estimation is reduced. A wireless communication method includes: a step of reading, by an access point apparatus, stored training weights for a station which performs channel estimation; a step of generating, by the access point apparatus, a weight training symbol by multiplying the training weights by a training symbol and transmitting the generated weight training symbol; a step of estimating, by a station apparatus, weight channel information from the received weight training symbol; a step of transmitting, by the station apparatus, the weight channel information to the access point apparatus; a step of calculating, by the access point apparatus, transmission weights using the received weight channel information and the stored training weights; a step of transmitting, by the access point apparatus, a data signal in accordance with the transmission weights; and a step of calculating and storing, by the access point apparatus, new training weights using the weight channel information and the stored training weights.

摘要翻译： 用于信道估计的训练信号的数量减少。 无线通信方法包括：由接入点装置读取进行信道估计的站的存储训练权重的步骤; 由接入点设备通过将训练权重乘以训练符号并发送生成的权重训练符号来生成加权训练符号; 通过站装置估计来自所接收的权重训练符号的权重信道信息的步骤; 由所述站装置向所述接入点装置发送权重信道信息的步骤; 由接入点装置使用所接收的加权信道信息和存储的训练权重来计算发送权重的步骤; 由接入点装置根据发送权重发送数据信号的步骤; 以及由接入点装置使用权重信道信息和存储的训练权重来计算和存储新的训练权重的步骤。