Communication Device, Non-Transitory Computer-Readable Recording Medium Storing Computer-Readable Instructions for Terminal Device, and Method Performed by Communication Device

A non-transitory computer-readable recording medium storing computer-readable instructions for a terminal device,

• wherein the computer-readable instructions, when executed by a processor of the terminal device, cause the terminal device to:
• in a case where a first wireless connection via a first wireless interface of the terminal device is established with a communication device, establish a second wireless connection via a second wireless interface of the terminal device with the communication device so as to participate in, as a child station, a wireless network in which the communication device operates as a parent station, a maximum distance with which a wireless communication via the second wireless interface can be executed being larger than a maximum distance with which a wireless communication via the first wireless interface can be executed;
• and
• in a case where the second wireless connection is established with the communication device, send a predetermined signal to the communication device via the second wireless interface by using the second wireless connection,
• wherein the predetermined signal is a signal for instructing the communication device to use, as a preservation time of the communication device, a second preservation time from among a first preservation time and the second preservation time which is longer than the first preservation time, and
• the preservation time is a time for preserving a state of the communication device in a parent station state under a situation where there is no child station device operating as a child station of the wireless network after the second wireless connection with the terminal device has been disconnected, the parent station state being a state where the communication device operates as the parent station of the wireless network.

A method performed by a communication device, the method comprising:

• in a case where a first wireless connection via a first wireless interface is established with an external device, establishing a second wireless connection via a second wireless interface with the external device so as to cause the external device to participate in, as a child station, a wireless network in which the communication device operates as a parent station, a maximum distance with which a wireless communication via the second wireless interface can be executed being larger than a maximum distance with which a wireless communication via the first wireless interface can be executed;
• determining whether a predetermined signal is received from the external device, in a case where the second wireless connection is established with the external device,
• wherein in a case where the external device is a first type external device, the predetermined signal is received from the first type external device, and
• in a case where the external device is a second type external device different from the first type external device, the predetermined signal is not receive from the second type external device;
• determining a preservation time according to the determination whether the predetermined signal is received, the preservation time being a time for preserving a state of the communication device in a parent station state under a situation where there is no child station device operating as a child station of the wireless network after the second wireless connection with the external device has been disconnected, the parent station state being a state where the communication device operates as the parent station of the wireless network;
• and
• in a case where the determined preservation time has elapsed without a child station device participating in the wireless network, shifting the state of the communication device from the parent station state to a specific state where the communication device does not operate as a parent station or a child station of a wireless network,
• wherein the determining the preservation time includes:
• one of a first preservation time and a second preservation time which is longer than the first preservation time is determined as the preservation time, in a case where it is determined that the predetermined signal is received from the external device, and
• the other of the first preservation time and the second preservation time is determined as the preservation time, in a case where it is determined that the predetermined signal is not received from the external device.