Power control method and equipment

Abstract

The invention provides a power control method and equipment. The method comprises the steps that a base station acquires a power adjustment value of user equipment (UE) in an uplink channel according to a reference signal for measuring downlink loss by the UE and the transmitting power of the reference signal in each wave beam; and the base station transmits the power adjustment value to the UE through one or two signals, wherein the power adjustment value is used for adjusting the transmitting power of the uplink channel by the UE, is different from a power control value corresponding to a transmit power control (TPC) command, and is used for compensating deviation of the downlink loss measured based on the reference signal from practical link loss of the uplink channel; and the TPC command is a TPC command in downlink control information (DCI) which is transmitted by the base station to the UE. The method solves the problem of mismatched uplink transmitting power resulting from the difference between the link loss value measured by using the downlink reference signal and the practical link loss value of the uplink channel in the prior art.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular, to a power control method and device. Background technique [0002] In a current wireless communication system, a power control method is used for uplink transmission of a user equipment (User Equipment, UE for short). For the UE, power control means that the UE needs to determine the appropriate transmit power according to the actual situation of the system. When the UE transmit power is too small, it will affect the correct reception of data from the UE by the network equipment, and too small transmit power will lead to a significant increase in the receiving bit error rate of the network equipment; especially if the transmit power of the UE is less than a certain threshold , the network device cannot even correctly receive the uplink data from the UE. [0003] Similarly, the UE's uplink transmission power is not as high as possible, because when the trans...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the embodiments of the present invention provide a power control method and device to solve the uplink power loss caused by the difference between the path loss value measured on the downlink reference signal and the actual path loss value of the uplink channel in the prior art. Transmit power mismatch problem

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