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A method and device for adjusting demodulation threshold

A demodulation threshold and pre-adjustment technology, applied in the field of communication, can solve problems such as increasing the amount of calculation and memory overhead, reducing the speed of adjustment, etc.

Inactive Publication Date: 2018-02-06
POTEVIO INFORMATION TECH CO LTD
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  • Claims
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Problems solved by technology

However, there are a large number of user terminals in each cell, and the processing of demodulation threshold adjustment, such as the above measurement and judgment, is performed for each user terminal, which greatly increases the amount of calculation and memory overhead, and reduces the speed of adjustment.

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  • A method and device for adjusting demodulation threshold
  • A method and device for adjusting demodulation threshold

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Embodiment Construction

[0100] 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 only some, not all, embodiments of the present invention. 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.

[0101] The embodiment of the present invention proposes a method for adjusting the demodulation threshold, see figure 1 , the method includes the following steps:

[0102] Step 101: Divide the SINR interval corresponding to each order of MCS into multiple SINR sub-intervals.

[0103] Step 102: Count the used uplink SINR, uplink transmission MCS and corresponding detection results ACK / NACK for the uplink transmission data of all user terminals within the bandw...

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Abstract

The invention provides a method and device for adjusting the demodulation threshold. The method includes: dividing the SINR interval corresponding to each order of MCS into multiple SINR sub-intervals; counting the used uplink SINR, uplink transmission MCS and corresponding detection results ACK / NACK for the uplink transmission data of all user terminals within the bandwidth range of the cell ; According to the statistical SINR, the detection result ACK / NACK corresponding to the SINR is classified into the SINR sub-interval where the SINR is located; according to the detection result ACK / NACK classified into the SINR sub-interval, it is judged whether to adjust the demodulation threshold at present, If so, calculate the adjustment offset value according to the SINR sub-interval, and adjust the demodulation threshold according to the adjustment offset value. The present invention can simultaneously adjust the demodulation threshold for all stages of MCS of all user terminals in a cell.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and device for adjusting demodulation threshold. Background technique [0002] In mobile communication systems, the demand for high-speed data services continues to grow. In order to transmit uplink data faster and more accurately, the base station needs to adaptively select the uplink modulation and coding scheme (MCS). MCSs of different orders correspond to different receiving signal-to-interference-noise ratios (SINRs), and the transmission performance of MCSs varies with the SINR. At present, the existing methods are usually measured by a block error rate of 10%, and the corresponding SINR when the block error rate of 10% is met is the demodulation threshold of the MCS. [0003] In order to adaptively select the uplink MCS, it is necessary to adjust the demodulation threshold of the MCS, that is, the SINR corresponding to the MCS. At present, the method of adjust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04H04L1/00
Inventor 朱颖
Owner POTEVIO INFORMATION TECH CO LTD
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