Title:
送信装置
Document Type and Number:
Japanese Patent JP5059965
Kind Code:
B2
Abstract:
[Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.[Overcoming Means] Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
Inventors:
Hiroki Kashiwagi
Yasuhiro Hamaguchi
Yasuhiro Hamaguchi
Application Number:
JP2011283920A
Publication Date:
October 31, 2012
Filing Date:
December 26, 2011
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04J11/00; H04J1/00; H04W4/24; H04W72/04
Other References:
原田博司 他,「Dynamic Parameter Controlled OF/TDMAによる新世代移動通信システム」,電子情報通信学会技術研究報告,社団法人電子情報通信学会,2004年 1月 9日,RCS2003-284,pp. 41-46
五味秀和 他,「PR-DSMAを用いたDPC-OF/TDMAの基礎伝送特性」,電子情報通信学会技術研究報告,社団法人電子情報通信学会,2004年11月12日,RCS2004-223,pp. 1-6
五味秀和 他,「PR-DSMAを用いたDPC-OF/TDMAの基礎伝送特性」,電子情報通信学会技術研究報告,社団法人電子情報通信学会,2004年11月12日,RCS2004-223,pp. 1-6
Attorney, Agent or Firm:
Takeo Fukuchi
Yoichi Shirakawa
Yoichi Shirakawa