A radio communications system, a radio cordless handset used for it, and a radio main phone

Japanese Patent JP5954667

B2

In a wireless communication system, slave units such as operation switches and the like are configured such that the higher the priority level of an information signal to be transmitted from each slave unit is, the shorter a period t1 of a carrier sense to be performed before the transmission is set. Therefore, when the slave units attempt to transmit information signals of different priority levels by using the same time slot, one of the slave units whose information signal to be transmitted is of the highest priority level is given the shortest carrier sense period t1 before the transmission of the information signal, and therefore, can transmit the information signal at the earliest timing. Accordingly, by causing the slave unit which becomes able to transmit the information signal at the earliest timing to transmit the information signal, the information signal of the highest priority level can be transmitted at the earliest timing, while the other units are caused to sense, by carrier sense, the transmission, and put off transmission of their own information signals.

Masahiro Nagata

JP2013500891A

July 20, 2016

February 22, 2012

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Panasonic IP Management Co., Ltd.

H04W4/04; H04W74/08; H04W84/18

JP2009272662A	2009-11-19
JP2006157248A	2006-06-15
JP2006222608A	2006-08-24
JP2003168180A	2003-06-13
JP2000244351A	2000-09-08
JP2000278752A	2000-10-06
JP2009272662A	2009-11-19

WO2010061817A1

2010-06-03

JPN6016001188; 高橋　　淳　　Ａｔｓｕｓｈｉ　　ＴＡＫＡＨＡＳＨＩ: 'センサネットワークにおけるＱｏＳを考慮した衝突回避のための適応的バックオフ制御方式　　ＱｏＳ　ａｗａｒｅ　Ａｄａｐｔｉ' 電子情報通信学会技術研究報告　　Ｖｏｌ．１０７　　Ｎｏ．５２５　　ＩＥＩＣＥ　Ｔｅｃｈｎｉｃａｌ　Ｒｅｐｏｒｔ 第１０７巻, 20080228, 第３７３-３７８頁, 社団法人電子情報通信学会　　Ｔｈｅ　Ｉｎｓｔｉｔｕｔｅ　ｏｆ　Ｅｌｅｃｔｒｏ

Yasuo Itaya
Katsumi Taguchi
Shinichi Mizuta
Itaya Masayuki

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