Resource allocation method and resource allocation system with low hardware complexity

A resource allocation method comprising:

• receiving a trigger frame signal;
• setting an initial value of a countdown parameter;
• setting an offset parameter;
• analyzing the trigger frame signal for acquiring at least one first user information field;
• determining at least one first random access resource unit number according to the at least one first user information field;
• decreasing the countdown parameter to generate a first countdown result according to the at least one first random access resource unit number;
• acquiring a random access resource unit flag corresponding to the countdown parameter decreased to zero;
• decreasing the offset parameter according to subsequent random access resource unit number following the random access resource unit flag;
• acquiring a second user information field corresponding to the offset parameter decreased to zero;
• and
• randomly selecting a second random access resource unit from multiple random access resource units of the second user information field.

A resource allocation system comprising:

• an access point configured to generate a trigger frame signal;
• and
• at least one communication terminal linked to the access point, each communication terminal comprising:
• a transceiver configured to receive the trigger frame signal;
• a processor coupled to the transceiver and configured to analyze the trigger frame signal;
• and
• a memory coupled to the processor;
• wherein the processor sets an initial value of the countdown parameter and an offset parameter, after the trigger frame signal is analyzed by the processor, the processor acquires at least one first user information field, controls the memory to buffer data of one user information field, determines at least one first random access resource unit number, according to the at least one first user information field, and decreases a countdown parameter to generate a first countdown result according to the at least one first random access resource unit number, the processor acquires a random access resource unit flag corresponding to the countdown parameter decreased to zero when the first countdown result is that the countdown parameter is decreased to zero or less than zero, and the processor decreases the offset parameter according to subsequent random access resource unit number following the random access resource unit flag;
• and
• wherein the processor accesses a second random access resource unit corresponding to the offset parameter decreased to zero, or the processor acquires a second user information field corresponding to the offset parameter decreased to zero and randomly selects the second random access resource unit from multiple random access resource units of the second user information field.