Patent ID: 9131514
Filing Date: 2015-09-08
Classification: H04W

Abstract:
1. A method of allocating radio resources, the method comprising: acquiring available channel information of a cognitive radio small cell; analyzing a channel characteristic based on the available channel information and dividing a required transmission rate of the cognitive radio small cell into required transmission rates for each available channel; and performing a power control for each available channel based on the divided required transmission rates for each available channel; wherein the performing of the power control for each available channel includes determining transmission power for each available channel, the transmission power for each available channel, pk^(s) for the available channel s of the cognitive radio small cell k is calculated by min_(p_k^((s))) Σ_(k=1)^Kp_k^((s)) s.t.r_k^((s))≧r_k^((s),t), and rk^(s) corresponds to a transmission rate of the available channel s of the cognitive radio small cell k, and rk^(s)′ t corresponds to the required transmission rate for each available channel of the available channel s of the cognitive radio small cell k.