Signal forwarding method, relay device, and communication system

A relay device, comprising:

• a processor configured to determine a first forwarding gain corresponding to first resource information based on an association relationship between a forwarding gain and resource information, the resource information comprising one or more of:
• signal information, channel information, a time domain resource number, backhaul beam information, or access beam information;
• and
• a transceiver configured to forward a received signal on a first time domain resource using the first forwarding gain, the first time domain resource being determined based on the first resource information.

A non-transitory computer-readable storage medium storing computer instructions, that configure at least one processor, upon execution of the instructions, to perform the following steps:

• determining a first forwarding gain corresponding to first resource information and based on an association relationship between a forwarding gain and resource information, the resource information comprising one or more of:
• signal information, channel information, a time domain resource number, backhaul beam information, or access beam information;
• and
• forwarding a received signal on a first time domain resource by using the first forwarding gain, wherein the first time domain resource is determined based on the first resource information.