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A kind of SRS channel quality measurement method and device

A technology of channel quality measurement and channel detection, which is applied in the field of SRS channel quality measurement methods and devices, can solve problems such as the inability to accurately obtain channel quality SNR values, and achieve accurate determination results

Active Publication Date: 2019-07-02
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology

[0006] The present invention provides a method and device for measuring SRS channel quality to solve the technical problem in the prior art that the channel quality SNR value cannot be accurately obtained

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  • A kind of SRS channel quality measurement method and device
  • A kind of SRS channel quality measurement method and device
  • A kind of SRS channel quality measurement method and device

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, a method for measuring SRS channel quality provided by an embodiment of the present invention includes:

[0041] Step 101. Determine the average SNR according to the current SNR of the terminal in the time-domain channel power spectrum, wherein the current SNR of a ...

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Abstract

The invention relates to the communication technology field, particularly relates to an SRS channel quality measurement method and a device and aims to solve a technical problem that a channel quality SNR value can not be accurately acquired in the prior art. The SRS channel quality measurement method comprises steps that according to present signal to noise ratios of terminals in a time domain channel power spectrum, an average signal to noise ratio is determined, a present signal to noise ratio of one terminal is determined according to the present noise threshold; according a corresponding relationship between the noise threshold and the average signal to noise ratio, a target noise threshold corresponding to the average signal to noise ratio is determined; according to the target noise threshold, a precise signal to noise ratio of each terminal is determined. Through the method, through dynamically adjusting the noise threshold, the precise signal to noise ratio of each terminal is re-determined according to the noise threshold after adjustment, and thereby the precise signal to noise ratio of each terminal can be accurately determined.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method and device for measuring SRS channel quality. Background technique [0002] In an LTE (Long Term Evolution, long-term evolution) system, an SRS (Sounding Reference Signal, channel sounding reference signal) signal is mainly used for channel quality estimation, so that frequency selective scheduling can be performed in the uplink. [0003] The SRS channel quality measurement method in the prior art is: after obtaining the time-domain channel power spectrum of the SRS signal, a preset noise threshold value obtained through simulation experiments and other means, for the noise threshold value greater than the noise threshold value in the power spectrum All power spectrum taps are considered to be useful power spectrum taps (or called useful power spectrum points); for all power spectrum taps less than the noise threshold in the power spectrum, considered to be noise ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/336
CPCH04B17/336
Inventor 付杰尉
Owner COMBA TELECOM SYST CHINA LTD
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