Network device and method for determining power supply relationship

A network device, wherein the network device comprises:

• a plurality of power supply units;
• a plurality of radio frequency units, wherein each of the plurality of radio frequency units is connected to at least one of the plurality of power supply units;
• and
• a control unit, separately connected to the plurality of power supply units and the plurality of radio frequency units, and configured to:
• control a load on a first carrier to change in a first manner, wherein the first carrier is a carrier of any of the plurality of radio frequency units;
• obtain power consumption of the plurality of power supply units when the load on the first carrier changes in the first manner;
• and
• determine, from the plurality of power supply units based on the power consumption of the plurality of power supply units, a first target power supply unit that supplies power to the radio frequency unit corresponding to the first carrier, wherein a manner in which power consumption of the first target power supply unit changes matches the first manner.