Title:
無線通信システム、無線通信の設定方法、基地局、及び移動局
Document Type and Number:
Japanese Patent JP6575782
Kind Code:
B2
Abstract:
The problem is that, in a mobile wireless system, when more than one frequency block composed of resource blocks that are consecutive on a frequency axis is assigned to one mobile station, the multi-diversity effect due to scheduling increases by the number of assigned frequency blocks being increased, but the overhead caused by the scheduling information increases. Accordingly, there is a tradeoff between the multi-diversity effect and the scheduling overhead. However, when the aforementioned tradeoff was considered with OFDM and SC-FDMA, the same fixed number of frequency blocks would have been used for all mobile stations. Accordingly, an optimization that takes into account the tradeoff between the multi-diversity effect and scheduling overhead has not been sufficiently achieved. In a wireless communication system, the maximum frequency block number, which is the maximum number of the aforementioned frequency blocks assigned to the same mobile station, is set based on system information, which is information pertaining to the base station installation environment and the mobile station or the mobile station's communication status, and the base station assigns no more resource blocks than the aforementioned maximum frequency block number.
Inventors:
Takamichi Inoue
Kenyan Koyanagi
Liu
Yoshikazu Kakura
Kenyan Koyanagi
Liu
Yoshikazu Kakura
Application Number:
JP2018085544A
Publication Date:
September 18, 2019
Filing Date:
April 26, 2018
Export Citation:
Assignee:
NEC
International Classes:
H04W72/12; H04W72/04
Foreign References:
| WO2007133411A2 |
Other References:
Alcatel-Lucent,Signaling Resource Allocations in DL Control Channel,3GPP TSG-RAN WG1 Meeting 1#50 bis,2007年10月12日,R1-074259,URL,http://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_50b/Docs/R1-074259.zip
眞嶋 圭悟, 三瓶 政一,ダイナミックスペクトル制御を用いた広帯域シングルキャリア伝送方式に関する検討,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2007年 1月19日,Vol.106, No.480,pp.97-102,URL,http://ci.nii.ac.jp/naid/110006219423/
NTT Docomo et al.,Reference Signal Sequence Allocation Method in E-UTRA Uplink,3GPP TSG RAN WG1 Meeting #47,2006年11月10日,R1-063309,URL,http://www.3gpp.org/ftp/tsg_ran/wg1_rl1/TSGR1_47/Docs/R1-063309.zip
眞嶋 圭悟, 三瓶 政一,ダイナミックスペクトル制御を用いた広帯域シングルキャリア伝送方式に関する検討,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2007年 1月19日,Vol.106, No.480,pp.97-102,URL,http://ci.nii.ac.jp/naid/110006219423/
NTT Docomo et al.,Reference Signal Sequence Allocation Method in E-UTRA Uplink,3GPP TSG RAN WG1 Meeting #47,2006年11月10日,R1-063309,URL,http://www.3gpp.org/ftp/tsg_ran/wg1_rl1/TSGR1_47/Docs/R1-063309.zip
Attorney, Agent or Firm:
Katsumi Utaka
Daigo Maejima
Junichi Hatakeyama
Daigo Maejima
Junichi Hatakeyama