| 摘要 |
A communication apparatus is configured to receive a search message from an additional communication apparatus while transmitting beacon information while hiding a group identifier. Then, the communication apparatus is configured to determine whether the additional communication apparatus is already registered. Alternatively, the communication apparatus determines whether predetermined information is included in a search signal from the additional communication apparatus. According to the determination, the communication apparatus transmits a response signal including group identification information to the additional communication apparatus.
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