Uplink data transmission resource allocation method and apparatus using load balancing

A first network node in a plurality of network nodes, the first network node comprising:

• a processor, a memory storing program code that is executable by the processor, and a communications interface, wherein executing the program code facilitates performing steps comprising:
• receiving, by the communications interface, a resource obtaining request from a user equipment, wherein the resource obtaining request is used to obtain an uplink data transmission resource for sending uplink data;
• sending, by the communications interface, the resource obtaining request to the plurality of network nodes, wherein the resource obtaining request sent to a respective network node in the plurality of network nodes is used to obtain an uplink data transmission resource for sending the uplink data;
• receiving, by the communications interface, second resource obtaining responses from the plurality of network nodes in response to the resource obtaining request;
• selecting, from the plurality of second network nodes, a serving network node according to the second resource obtaining responses;
• generating a first resource obtaining response according to a second resource obtaining response received from the serving network node;
• and
• sending, by the communications interface, the first resource obtaining response to the user equipment for sending the uplink data.

A method for transmitting data performed by a user equipment, the method comprising:

• determining a plurality of first network nodes that provides uplink data transmission resources;
• sending a resource obtaining request to the plurality of first network nodes, wherein the resource obtaining request sent to a respective first network node is used to obtain a uplink data transmission resource for sending uplink data;
• receiving resource obtaining responses from the plurality of first network nodes in response to the resource obtaining request;
• determining, according to the received resource obtaining responses, a serving network node in the plurality of first network nodes;
• determining that the uplink data transmission resource for sending the uplink data is the uplink data transmission resource received from the serving network node;
• and
• sending the uplink data to the serving network node using the uplink data transmission resource received from the serving network node.