DATA TRANSMISSION DEVICE AND DATA TRANSMISSION METHOD

WIPO Patent Application WO/2011/158467

A1

Disclosed are a data transmission device and a data transmission method which are capable of suppressing occurrence of packet data loss at an initial stage of transfer and of suppressing the duplicate Ack transmission count of a receiving side to reduce power consumption. A data transmission device (100) is provided with a transmission amount analysis unit (103) for analyzing the transmitted packet data amount with respect to a transmission window size which has been set by a transmission window size setting unit (102); a transmission parameter designation unit (104) for designating, according to the ratio of the transmitted packet data amount with respect to the transmission window size, different transmission powers, modulation methods, and code ratios for a transmission parameter setting unit (107); the transmission parameter setting unit (107) for setting the parameters that have been designated by the transmission parameter designation unit (104); and a transmission control unit (110) for reading transmission data from a transmission buffer (101) and transmitting the transmission data on the basis of the settings of the transmission parameter setting unit (107).

YAMAGUCHI TAKASHI
KOBAYASHI HIROKAZU
SENGA SATOSHI
HARADA MASAAKI

PCT/JP2011/003231

December 22, 2011

June 08, 2011

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PANASONIC CORP (JP)
YAMAGUCHI TAKASHI
KOBAYASHI HIROKAZU
SENGA SATOSHI
HARADA MASAAKI

H04L29/06; H04L13/08; H04L29/08; H04W28/06; H04W52/26

JP2009206627A	2009-09-10
JP2004193761A	2004-07-08
JP2002204275A	2002-07-19
JP2002077093A	2002-03-15

WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)

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