Relay network duplex coordination method and relay node device

A second node device, comprising:

• a processor, a transceiver, memory and instructions stored in the memory that, when executed by the processor, cause the second node device to perform:
• sending configuration information to a first node device, wherein the configuration information is configured to indicate the first node device to, according to the configuration information, receive on a first time domain resource a first message sent by the second node device and send a second message to a third node device on a second time domain resource;
• wherein the configuration information indicates the first time domain resource and the second time domain resource, the second node device is a parent node of the first node device, and the third node device is a child node of the first node device;
• wherein the configuration information comprises first configuration information and second configuration information, the first configuration information indicates the first time domain resource, and the second configuration information indicates the second time domain resource;
• wherein the first time domain resource and the second time domain resource partially or completely overlap;
• wherein a priority of the first message is higher than a priority of the second message.