Power Control Method and Base Station

摘要

The embodiments of the present invention provide a power control method and a base station. The method includes: obtaining, by a base station, INPUCCH(i), where the INPUCCH(i) is 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 PO—NOMINAL—PUCCH(i) for power control at the subframe i. In the embodiments of the present invention, the base station may send a more accurate parameter to a UE, so that PUCCH transmit power which is at the subframe i and calculated by the UE is more accurate, and network interference caused by increasing the PUCCH transmit power is further reduced.

主权项

1. A power control method comprising:
obtaining, by a base station, a bit error rate BER(i) of a physical uplink control channel (PUCCH) of a user equipment (UE) at a subframe i; and sending, by the base station, a transmit power control command δ′PUCCH(i−km), wherein a value of m ranges from 0 to M−1, M is an integer greater than 1, and a value of the δ′PUCCH(i−km) is any one of the following: if the BER(i) is greater than a bit error rate reference value BERPUCCH—REF, δ′PUCCH(i−km)=δPUCCH(i−km)+ΔSINRUE—QCI(i), wherein the ΔSINRUE—QCI(i) is a first signal to interference plus noise ratio offset used by the UE at the subframe i; if the BER(i) is smaller than the BERPUCCH—REF, δ′PUCCH(i−km)=δPUCCH(i−km)−ΔSINROFFSET(i), wherein the ΔSINROFFSET(i) is a second signal to interference plus noise ratio offset used by the UE at the subframe i; and if the BER(i) is equal to the BERPUCCH—REF; the value of the δ′PUCCH(i−km) is the same as a value of the δPUCCH(i−km), wherein the δPUCCH(i−km) is a transmit power control command obtained by the base station at a subframe i−km.