Title:
変調パラメータ選択方法、変調パラメータ選択装置及び通信装置
Document Type and Number:
Japanese Patent JP4476331
Kind Code:
B2
Abstract:
A modulation parameter selecting method and the like is realized, that can realize a high transmission rate efficiently, in a system including, as a scheduler portion, a temporal coding rate determining portion that determines a coding rate temporarily, a temporal modulation rate determining portion for selecting a modulation method that satisfies required quality and has a maximum transmission rate in each channel, under the temporarily determined coding rate, and a transmission rate computing portion that calculates a transmission rate from the coding rate determined at the temporal coding rate determining portion and the modulation method in each of the channels selected at the temporal modulation method determining portion, in which processing from the temporal coding rate determining portion to the transmission rate computing portion is performed repeatedly with respect to selectable coding rates and a coding rate with a maximum transmission rate and a modulation method in each of the channels are determined, and thereby the coding rate is made to be common in a plurality of channels allocated to a predetermined terminal and the modulation method is made different for each of the channels.
Inventors:
Souzo Nogami
Takeshi Onodera
Takeshi Onodera
Application Number:
JP2007556808A
Publication Date:
June 09, 2010
Filing Date:
January 16, 2007
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04J11/00; H04L27/00; H04L29/08
Domestic Patent References:
| JP2005252834A |
Foreign References:
| WO2005002253A1 | ||||
| WO2006001357A1 |
Other References:
Ericson et al.,Adaptive Modulation and Channel Coding Rate Control for Frequency Domain Scheduling in Evolved UTRA Downlink,3GPP TSG RAN WG1 #42bis R1-051149,2005年10月
Toshiba,Adaptive Modulation and Coding for Evolved UTRA Downlink,3GPP TSG-RAN WG1 #42bis R1-051055,2005年10月
Toshiba,Adaptive Modulation and Coding for Evolved UTRA Downlink,3GPP TSG-RAN WG1 #42bis R1-051055,2005年10月
Attorney, Agent or Firm:
Eisuke Fujimoto
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba