发明名称 COMMUNICATION METHOD, COMMUNICATION APPARATUS, AND COMMUNICATION SYSTEM
摘要 PROBLEM TO BE SOLVED: To provide a communication method with which signal collision with a signal transmitted from other communication apparatuses can be avoided inexpensively. SOLUTION: A communication method includes: a slot ID updating step in which a master unit or a slave unit sequentially updates a slot ID in accordance with the passage of time; a first transmission step in which the master unit or the slave unit transmits first data and a first access ID to a power line when the slot ID is updated to a first slot ID corresponding to the first access ID allocated to the station itself after the lapse of a first standby time during a carrier non-detection period; a second transmission step in which a grand-child unit transmits second data and a second slot ID to the power line after the lapse of a second standby time longer than the first standby time during the carrier non-detection period; and a first receiving step in which the master unit or the slave unit receives the second slot ID. In the slot ID updating step, the master unit or the slave unit starts updating the slot ID from a slot ID following the second slot ID. COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010157973(A) 申请公布日期 2010.07.15
申请号 JP20090000339 申请日期 2009.01.05
申请人 PANASONIC CORP 发明人 OMI SHINICHIRO
分类号 H04L12/28;H04B3/54 主分类号 H04L12/28
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