Communication apparatus and communication method

Multiplex communications – Channel assignment techniques

Reexamination Certificate

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C370S459000

Reexamination Certificate

active

07965731

ABSTRACT:
A communication apparatus is provided. The communication apparatus includes a first unit for performing data communication using a bandwidth reservation type transmission area constituted by a plurality of time-divided time slots via a power line to which an alternating-current voltage is supplied. A second unit is connected to the first unit, for securing a vacant time slot out of the plurality of time-divided time slots. A third unit is connected to the first unit, for securing a time slot out of the plurality of time-divided time slots when incapable of securing the vacant time slot, the secured time slot being used in common by a first communication system used by the communication apparatus and a second communication system different from the first communication system, the second communication system using the same communication procedure as the first communication system.

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Japanese Office Action issued on Feb. 3, 2009, for corresponding Japanese Patent Application JP 2007-132722.
CEPCA document dated Apr. 5, 2006, CEPCA Technical Work Group.

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