| 摘要 |
PURPOSE: A method for adaptively allocating power for forward communication channels in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to maximize the capacity of a system using the limited power of a base station by allocating an optimum adaptive power value to a communication channel in the case of setting up the communication channel. CONSTITUTION: If a user transmits a channel request signal to a base station through his mobile terminal(S310), the base station regards it as a request for a new communication channel, grasps the location of the mobile terminal, and calculates the distance with the mobile terminal(S320). The base station calculates a communication channel power value allocated to the calculated distance(S330). Then the base station confirms its own total power in order to judge whether the calculated power allocated to the communication channel is acceptable(S340). The base station judges whether the calculated power is acceptable within the limit of its own total power(S350). If it is judged that the calculated power is acceptable, the base station allocates the calculated power to the new communication channel and grants call admission(S307). |
