Power estimation apparatus and power estimation method
A power and estimated value technology, applied in the field of communication, can solve problems such as the influence of channel performance estimation, and achieve the effect of improving power estimation performance and improving performance
Active Publication Date: 2017-12-12
SUZHOU YUDESHUI ELECTRIC TECH CO LTD
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[0007] When using the above method for channel parameter estimation, for channels with strong time-frequency selective fading, time-frequency selective fading will have a greater impact on channel performance estimation
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0031] For ease of understanding, an example diagram of a system architecture that can be applied to implement the power estimation method and the power estimation device according to the embodiments of the present invention is firstly described as a whole. It should be understood that the embodiments of the present invention are not limited to figure 1 shown in the system architecture, in addition, figure 1 The devices in the system may be hardware, ...
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The invention provides a power estimation method and a power estimation apparatus. The power estimation apparatus comprises an obtaining module used for obtaining Q second-order statistical feature estimated values of a received signal according to a time-frequency resource corresponding to the received signal; a determining module used for determining Q time-frequency correlation coefficient vectors; and an estimation module used for estimating signal power estimated values and noise power estimated values of P antenna ports according to the Q second-order statistical feature estimated values obtained by the obtaining module and the Q time-frequency correlation coefficient vectors determined by the determining module. By adoption of the technical method in the embodiment of the invention, the performance of signal to noise estimation and signal to interference ratio estimation can be improved, and thus the channel estimation performance and the data detection performance can be improved.
Description
technical field [0001] The present invention relates to the communication field, in particular to a power estimation device and a power estimation method. Background technique [0002] Human society's increasing demand for mobile data services is driving the continuous development of wireless communication systems towards the goals of larger capacity, higher user experience quality, and wider application scenarios. The channel experienced by the wireless communication system usually changes in time and frequency, so the wireless communication system needs to perform parameter estimation, such as Signal to Noise Ratio (SNR) estimation, noise power estimation, etc., for channel estimation and signal detection, etc. deal with. [0003] Usually, the parameter estimation with high reliability is realized through the defined pilot signal, such as the cell reference signal (Cell- specific Reference Signal, CRS), demodulation reference signal (Demodulation Reference Signal, DMRS) ...
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IPC IPC(8): H04B17/309H04L25/02
CPCH04L25/0204H04B17/309
Inventor 李宝金程臻高振兴
Owner SUZHOU YUDESHUI ELECTRIC TECH CO LTD