US 2017/0374571 A1 · INDICATION INFORMATION CORRECTION METHOD, SYSTEM AND STORAGE MEDIUM

Abstract

A method for correcting indication information is described; the method includes that: a Signal-to-Noise Ratio (SNR) value of a first layer at current time and an SNR value of a second layer at the current time are obtained; a channel correlation value at the current time is calculated according to the SNR value of the first layer and the SNR value of the second layer; a smoothing value of the channel correlation value at the current time is calculated according to the calculated channel correlation value and a preset forgetting factor; and a Rank Indicator (RI) value and/or a Channel Quality Indicator (CQI) value are/is corrected according to the obtained smoothing value. A system and a storage medium for correcting indication information are also described.

Claims17

Dependent claims

A method for correcting indication information, comprising:

obtaining a Signal-to-Noise Ratio (SNR) value of a first layer at current time and an SNR value of a second layer at the current time;
calculating a channel correlation value at the current time according to the SNR value of the first layer and the SNR value of the second layer;
calculating a smoothing value of the channel correlation value at the current time according to the calculated channel correlation value and a preset forgetting factor;
correcting a Rank Indicator (RI) value and/or a Channel Quality Indicator (CQI) value according to the obtained smoothing value.

1 more element

A system for correcting indication information, comprising:

a channel correlation calculation module, which is configured to obtain a Signal-to-Noise Ratio (SNR) value of a first layer at current time and an SNR value of a second layer at the current time, calculate a channel correlation value at the current time according to the SNR value of the first layer and the SNR value of the second layer, calculate a smoothing value of the channel correlation value at the current time according to the calculated channel correlation value and a preset forgetting factor, and send the smoothing value to a Rand Indicator (RI) correction module and/or a Channel Quality Indicator (CQI) correction module;
the RI correction module is configured to calculate a correction value of an RI value according to the smoothing value;
the CQI correction module is configured to calculate a correction value of a CQI value according to the smoothing value.

A non-transitory computer-readable storage medium, in which a computer executable instruction is stored;

the computer executable instruction is used for performing a method for correcting indication information, comprising:
obtaining a Signal-to-Noise Ratio (SNR) value of a first layer at current time and an SNR value of a second layer at the current time;
calculating a channel correlation value at the current time according to the SNR value of the first layer and the SNR value of the second layer;
calculating a smoothing value of the channel correlation value at the current time according to the calculated channel correlation value and a preset forgetting factor;
correcting a Rank Indicator (RI) value and/or a Channel Quality Indicator (CQI) value according to the obtained smoothing value.

2 more elements

Dependencies are inferred from the claim text.

Indication information correction method, system and storage medium

Life of this patent

Indication information correction method, system and storage medium

Life of this patent

Abstract

Claims17