Power control method and radio network controller

摘要

A power control method performing a power control operation between a radio network controller and a node B is provided. The method includes steps of: calculating a packet error rate threshold and a base received packet count according to a target block error rate (BLER) and a precision of the target BLER; obtaining an accumulated received packet count and an accumulated packet error count; increasing a target signal-to-interference ratio (SIR) of the node B when the accumulated packet error count is greater than a product of the accumulated received packet count and the packet error rate threshold; decreasing the target SIR when the accumulated received packet count is greater than or equal to a product of the base received packet count and a threshold parameter; and resetting the accumulated received packet count and the accumulated packet error count after the target SIR is adjusted.

主权项

1. A power control method, applied to a radio network controller (RNC), for performing an outer loop power control operation between the RNC and a node B, the method comprising:
a) calculating a corresponding packet error rate threshold and a corresponding base received packet count according to a target block error rate (BLER) and a precision of the target BLER; b) obtaining a received packet count and a packet error count within an operation period of the RNC, and respectively adding the received packet count and the packet error count to an accumulated received packet count and an accumulated packet error count; c) determining whether the accumulated packet error count is greater than a product of the accumulated received packet count and the packet error rate threshold, and increasing a target signal-to-interference ratio (SIR) of the node B when the accumulated packet error count is greater than the product of the accumulated received packet count and the packet error rate threshold; d) determining whether the accumulated received packet count is greater than or equal to a product of the base received packet count and a threshold parameter, and decreasing the target SIR when the accumulated received packet count is greater than or equal to the product of the base received packet count and the threshold parameter; e) determining whether the target SIR is adjusted in step (c) or step (d), and performing step (f) when the target SIR is adjusted in step (c) or step (d); and f) resetting the accumulated received packet count and the accumulated packet error count if the target SIR is adjusted in step (c) or step (d).