Patent ID: 8737340

Claim:
A power control method, comprising: obtaining, by a base station, IN PUCCH (i), wherein the IN PUCCH (i) is an average interference noise power of a physical uplink control channel (PUCCH) carried by radio resources that are allocated by the base station at a subframe i; and sending, by the base station, a parameter P 0 — NOMINAL — PUCCH (i) for power control at the subframe i, wherein if a relative difference between the IN PUCCH (i) and a power reference value IN PUCCH — REF is greater than a threshold IN TH — PUCCH , a value of the P 0 — NOMINAL — PUCCH (i) is a sum of SINR 0 — NOMINAL — PUCCH and IN PUCCH at the subframe i, wherein the SINR 0 — NOMINAL — PUCCH is a first signal to interference plus noise ratio of the PUCCH obtained by the base station according to a lowest-class service used by a UE located at a cell edge and a first uplink control information format; and wherein if the relative difference between the IN PUCCH (i) and the power reference value IN PUCCH — REF is not greater than the threshold IN TH — PUCCH , the value of the P 0 — NOMINAL — PUCCH (i) is the same as a value of a parameter P 0 — NOMINAL — PUCCH (i−1) for the power control at a subframe i−1.