| 摘要 |
A communication apparatus that constitutes a communication system including a group of communication apparatuses identified by a first identifier, and includes a storage unit, a control unit, and a broadcasting unit. The storage unit is configured to store a first identifier of a group to which the communication apparatus belongs. The control unit controls exchange of signals for setting a first identifier. The broadcasting unit broadcasts a first-identifier request signal to other communication apparatuses. Upon receipt of a first-identifier notification signal that includes a first identifier in response to the first-identifier request signal, the control unit stores the first identifier in the storage unit for use in communication.
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