Title:
無線中継装置及び無線中継方法
Document Type and Number:
Japanese Patent JP5364537
Kind Code:
B2
Abstract:
Provided is a communication capacity evaluating apparatus whereby the communication capacity can be grasped and the necessity of changing the content of a dead spot measure after the placement of a relay apparatus can be eliminated. In the communication capacity evaluating apparatus, a system information analyzing unit (121) acquires, from a received signal, used-band information of the communication using a MIMO mode. An S/N calculating unit (122) analyzes the received signal to determine a signal-to-noise ratio. A channel estimating unit (123) analyzes the received signal to determine a channel matrix. A throughput limit calculating unit (124) calculates the limit value of the communication capacity on the basis of the used-band information, information about the number of transmission antennas of a base station (180), information about the number of reception antennas of a radio relay apparatus (100) stored in advance, the signal-to-noise ratio and the channel matrix. A display unit (133) displays the result of a comparison between the limit value and a desired value of communication capacity set in advance.
Inventors:
Yasuo Yokouchi
Jun Imai
Tomoaki Shimizu
Amano Yukinori
Toritoshi
Takayuki Toyama
Jun Imai
Tomoaki Shimizu
Amano Yukinori
Toritoshi
Takayuki Toyama
Application Number:
JP2009260222A
Publication Date:
December 11, 2013
Filing Date:
November 13, 2009
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H04J99/00; H04B7/04; H04B7/15; H04W16/26
Domestic Patent References:
| JP2009021807A |
Other References:
中山琢、佐藤裕高、草野吉雅,"E-UTRA下りリンクにおけるPDCCH及びPDSCH特性に基づくリンクバジェットの一考察",Technical report of IEICE,日本,社団法人電子情報通信学会,2008年10月15日,RCS2008-111, vol.108, No.249,pp.49-54
鶴田誠、唐沢好男,"MIMOマルチキーホールモデル : MIMOリピータシステム評価のための",IEICE technical report,日本,社団法人電子情報通信学会,2005年11月10日,AP2005-112, vol.105, No.399,pp.7-12
Mohinder Jankiraman,"The MIMO Wireless Channel",Space-time Codes And MIMO Systems,Artech House,2004年,pp.22-45
鶴田誠、唐沢好男,"MIMOマルチキーホールモデル : MIMOリピータシステム評価のための",IEICE technical report,日本,社団法人電子情報通信学会,2005年11月10日,AP2005-112, vol.105, No.399,pp.7-12
Mohinder Jankiraman,"The MIMO Wireless Channel",Space-time Codes And MIMO Systems,Artech House,2004年,pp.22-45
Attorney, Agent or Firm:
Koichi Washida