Title:
複数セクタセルからなる仮想セル構成におけるビームパターン生成抑制
Document Type and Number:
Japanese Patent JP6799020
Kind Code:
B2
Abstract:
Provided is a wireless device which, with a simple configuration not requiring a digital processing unit that digitally randomly generates and adds a frequency offset, is capable of suppressing the formation of a weak electric field area due to the beam pattern in a virtual cell configuration comprising a plurality of sector cells. The wireless device uses a virtual cell configuration system in which a virtual cell comprising a plurality of sector cells is configured and all or a portion of the signals transmitted on the downlink of the respective sector cells are identical among the sector cells. The wireless device is provided with, for each of the individual sector cells: a transmission signal generation unit that generates a high-frequency transmission signal on the basis of a reference signal and an intermediate frequency signal to be transmitted; and a reference signal generation unit that generates the reference signal at a prescribed target frequency and supplies the reference signal to the transmission signal generation unit.
More Like This:
| WO/2010/025681 | POWER MANAGEMENT FOR MULTI-CARRIER TRANSMISSION |
| WO/1996/010871 | MULTIPLE BAND RADIO |
| JP5484345 | Base station equipment and frequency resource allocation method |
Inventors:
Kenji Hoshino
Kimoto Ota
Kimoto Ota
Application Number:
JP2018009043A
Publication Date:
December 09, 2020
Filing Date:
January 23, 2018
Export Citation:
Assignee:
Softbank Corp.
International Classes:
H04B7/12; H04B1/04; H04W16/28
Domestic Patent References:
| JP2001168757A |
Other References:
Yosuke FUJINO et al.,Cell Range Extension Techniques for Wide-Area Ubiquitous Network,Tenth International Symposium on Autonomous Decentralized Systems (ISADS),2011年,pp.35-40
Seiji Ohmori et al.,Frequency Offset Transmitter Diversity for M2M Access System,Proceedings of 21st Asia-Pacific Conference on Communications (APCC),2015年,pp.566-569
鈴木和雅ほか,小電力センサネットワークにおける周波数オフセット送信ダイバーシチ方式に関する検討,電子情報通信学会論文誌(B),2012年,第J95-B巻, 第11号,pp.1599-1602
Seiji Ohmori et al.,Frequency Offset Transmitter Diversity for M2M Access System,Proceedings of 21st Asia-Pacific Conference on Communications (APCC),2015年,pp.566-569
鈴木和雅ほか,小電力センサネットワークにおける周波数オフセット送信ダイバーシチ方式に関する検討,電子情報通信学会論文誌(B),2012年,第J95-B巻, 第11号,pp.1599-1602
Attorney, Agent or Firm:
Toshi Kuroda
Nakamura Hiromichi
Nakamura Hiromichi