Title:
パスロス算出方法、パスロス算出装置、パスロス算出プログラム、無線通信システム、スペクトルマネージャ
Document Type and Number:
Japanese Patent JP5900495
Kind Code:
B2
Abstract:
A spectrum manager manages a secondary system that shares a frequency with a primary system. A communication unit receives a measurement value of reception power of a signal of the secondary system which is measured by a monitoring station, and holds the measurement value in a measurement result storage unit. A path loss estimating unit estimates a path loss at a first frequency, and a path loss correcting unit performs actual measurement correction on a path loss estimation value using one of a reception power measurement value of a radio signal of a secondary transmitting station measured at a second frequency different from the first frequency and a reception power measurement value of the radio signal of the secondary transmitting station measured in a period of time which is not used by the primary system. A permissible transmission power setting unit calculates permissible transmission power of the secondary transmitting station using the path loss estimation value which has been actually measured and corrected.
Inventors:
Kazushi Muraoka
Application Number:
JP2013519451A
Publication Date:
April 06, 2016
Filing Date:
May 30, 2012
Export Citation:
Assignee:
NEC
International Classes:
H04W16/14; H04W24/08
Domestic Patent References:
| JP201161759A | ||||
| JP201124068A | ||||
| JP2008306277A |
Other References:
村岡一志、菅原弘人、有吉正行,ホワイトスペース二次利用型コグニティブ無線システムの検討(3) : 与干渉モニタリングに基づく高度スペクトル制御,2010年電子情報通信学会ソサイエティ大会講演論文集1,社団法人電子情報通信学会 ,2010年 8月31日,p.523
Attorney, Agent or Firm:
Sumio Tanai
Ryuichiro Mori
Naoki Matsuo
Ryuichiro Mori
Naoki Matsuo