A fuel control method and system is provided for delivering fuel to an engine that employs an engine controller that is configured to the fuel injection quantity delivered to the engine. The mobile station maps a pilot channel comprising a CAZAC code to a signal including multiple frequency components arranged at regular intervals in a given frequency band, and transmits a transmission signal including the signal according to scheduling information. The interconnect structure operates as a \u201cdeflection\u201d or \u201chot potato\u201d system in which processing and storage overhead at each node is minimized.