Abstract: The present invention relates to a network connection system. The network connection system includes a gateway, an extender, and a wireless access point. Wherein, the gateway can be used as one of the enrollee router and the registrar router, and the extender can be used as the other of the enrollee router and the registrar router, and the extender can send authentication information to the gateway. After the gateway confirms that the extender is a model supported by the gateway according to the authentication information, the gateway sends a credential to the extender, allowing the extender to establish a wireless mesh network through the wireless access point. In this way, the purpose of seamless connection is achieved. In addition, the network connection system of the present invention has functions such as high security and convenience.

Abstract: A network path selection method and a network node device using the same are disclosed. The network path selection method includes: determining whether a first uplink time parameter table is received from the first relay node device and whether a second uplink time parameter table is received from the second relay node device; when the first uplink time parameter table is received from the first relay node device and the second uplink time parameter table is received from the second relay node device, calculating a first estimated uplink time parameter according to the first uplink time parameter table and a second estimated uplink time parameter according to the second uplink time parameter table; and determining to connect to a gateway via one of the first relay node device and the second relay node device according to the first estimated uplink time parameter and the second estimated uplink time parameter.

Abstract: A wireless network bridging method and a wireless network transmission device using the same are provided. The wireless network bridging method includes the following steps. A first wireless network transmission device sets a downlink channel and at least one connection channel connected to at least one user equipment. A second wireless network transmission device sets an uplink channel. The second wireless network transmission device sets a downlink channel according to a channel information of the first wireless network transmission device. The downlink channel and the uplink channel of the second wireless network transmission device are different. The second wireless network transmission device sets at least one connection channel connected to at least one user equipment according to the channel information of the first wireless network transmission device. The connection channels of the second wireless network transmission device and the first wireless network transmission device are different.

Abstract: A network path selection method and a network node device using the same are disclosed. The network path selection method includes: determining whether a first uplink time parameter table is received from the first relay node device and whether a second uplink time parameter table is received from the second relay node device; when the first uplink time parameter table is received from the first relay node device and the second uplink time parameter table is received from the second relay node device, calculating a first estimated uplink time parameter according to the first uplink time parameter table and a second estimated uplink time parameter according to the second uplink time parameter table; and determining to connect to a gateway via one of the first relay node device and the second relay node device according to the first estimated uplink time parameter and the second estimated uplink time parameter.