Power control method, system and terminal for sounding reference signal

Abstract

The present invention discloses a power control method, system and terminal of a sounding reference signal. The method includes: when a base station receives a sounding reference signal sent by a user equipment, acquires a measurement value of the sounding reference signal, and outputs a processed sounding reference signal. The measured value of the signal and the power headroom calculated in real time; obtain the target value of the closed-loop power control currently maintained, and output the target value of the closed-loop power control after adaptive adjustment; according to the measured value of the processed detection reference signal, the real-time calculated Calculate the closed-loop power control adjustment value of the sounding reference signal with the power headroom and the adjusted target value of the closed-loop power control; obtain all power control commands to be scheduled, and allocate control resources for the power control commands to be scheduled in order of priority, And send downlink control information to the user equipment. The invention realizes effective power control on the sounding reference signal, and meets the requirement of the base station side on the receiving performance of the sounding reference signal.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a power control method, system, terminal and computer-readable storage medium for sounding reference signals. Background technique [0002] In 5G NR (5G New Radio, a global 5G standard based on a new air interface design based on OFDM technology, it is also a very important foundation for cellular mobile technology in the next generation. 5G technology will achieve ultra-low latency and high reliability) In a wireless communication system, the Sounding Reference Signal (SRS) is mainly used for uplink or downlink channel quality feedback. There are two specific functions: the base station obtains uplink channel information by measuring SRS to assist uplink Scheduling, resource allocation, and data transmission; the base station obtains downlink channel information (applicable to TDD, Time Division Duplexing, time division duplexing) by measuring SRS to assist in dow...

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Problems solved by technology

[0010] The main purpose of the present invention is to provide a sounding reference signal power control method, system, terminal and computer-readable storage medium, aiming to solve the problem that the closed-loop power of the SRS of each subcarrier in the carrier aggregation scenario cannot be effectively controlled in the prior art. problem of control

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