Title:
無線基地局および無線基地局受信方法
Document Type and Number:
Japanese Patent JP7219587
Kind Code:
B2
Abstract:
A characteristic variable antenna configured to be able to select or switch antenna characteristics in accordance with a predetermined periodic variable timing, an RF unit configured to perform a reception process on a signal received by the characteristic variable antenna, an ADC unit configured to sample the analog signal input from the RF unit at a sampling period corresponding to the variable timing of the antenna characteristics of the characteristic variable antenna, a signal dividing unit configured to divide the digital signal input from the ADC unit into different digital signals in accordance with the antenna characteristics and output the divided different digital signals, a MIMO-OFDM demodulation unit configured to receive inputs of the different digital signals divided by the signal dividing unit and perform a demodulation process of predetermined MIMO-OFDM, and a control unit configured to periodically select or switch the antenna characteristics of the characteristic variable antenna in accordance with the sampling period of the ADC unit are included.
Inventors:
Tomonori Murakami
Toshiro Nakahira
Omiya Riku
Koichi Ishihara
Takafumi Hayashi
Toshiro Nakahira
Omiya Riku
Koichi Ishihara
Takafumi Hayashi
Application Number:
JP2018201282A
Publication Date:
February 08, 2023
Filing Date:
October 25, 2018
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04B7/0413; H01Q3/04; H01Q3/24; H04B1/40; H04L27/26
Domestic Patent References:
| JP2013533681A | ||||
| JP2009081578A |
Attorney, Agent or Firm:
Hitoshi Okikawa
Kengo Nagata
Kengo Nagata