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Method and device for determining decision threshold of DTX detection, and DTX detection method and device

A technology for determining a method and a threshold value, which is applied in the field of DTX detection methods and devices, and can solve problems such as large impact, inability to adapt to different SNR environments, and impact on DTX detection performance.

Active Publication Date: 2017-03-22
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem with the above method is: the optimal DTX threshold is greatly affected by the SNR of the environment and changes with the change of the environment SNR. When setting a static DTX threshold, it cannot adapt to environments with different SNRs.
Therefore, when setting a static DTX threshold, it cannot adapt to different scenarios
Whether it is the above-mentioned inability to adapt to different SNR environments or the above-mentioned inability to adapt to different scenarios, it will affect the detection performance of DTX, making the detection performance of DTX low

Method used

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  • Method and device for determining decision threshold of DTX detection, and DTX detection method and device
  • Method and device for determining decision threshold of DTX detection, and DTX detection method and device
  • Method and device for determining decision threshold of DTX detection, and DTX detection method and device

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Embodiment 1

[0038] The first embodiment of the present invention provides a method for determining the decision threshold of DTX detection, see figure 1 Shown is a schematic diagram of the implementation process of the method for determining the decision threshold of DTX detection in Embodiment 1 of the present invention Figure one . Such as figure 1 As shown, the method for determining the decision threshold of DTX detection in the first embodiment includes the following steps:

[0039] Step S101: Determine the target terminal number range in which the current terminal number is located according to the current number of terminals on the target physical resource and multiple pre-divided terminal number ranges;

[0040] Here, the terminal number range can be divided by one or more different boundary values, for example, these boundary values ​​are NS(1), NS(2), NS(3),..., NS(M1- 1), NS(M1), where M1 represents the number of boundary values ​​used to divide the terminal range;

[0041] Among th...

Embodiment 2

[0079] According to the method for determining the decision threshold of DTX detection in the first embodiment, the second embodiment of the present invention provides a DTX detection method. The DTX detection method in the second embodiment adopts the DTX detection decision described in any of the above embodiments. The decision threshold determined by the threshold determination method performs DTX detection of each terminal on the target physical resource. See image 3 Shown is a schematic diagram of the implementation process of the DTX detection method in Embodiment 2 of the present invention Figure one . Such as image 3 As shown, the DTX detection method of the second embodiment includes the following steps:

[0080] Step S301: Obtain the signal-to-noise ratio of each terminal on the target physical resource;

[0081] Here, the signal-to-noise ratio of each terminal may be the ratio of the signal power value to the noise power value of the corresponding terminal, that is, ...

Embodiment 3

[0150] According to the method for determining the decision threshold of DTX detection in the foregoing embodiment, the present invention also provides a device for determining the decision threshold of DTX detection. Figure 4 This is a schematic diagram of the composition structure of the device for determining the decision threshold value of DTX detection according to the third embodiment of the present invention Figure one . Such as Figure 4 As shown, the device for determining the judgment threshold value of DTX detection in the third embodiment includes a range judgment unit 401, a threshold value query unit 402, and a threshold value judgment unit 403, wherein:

[0151] The range determining unit 401 is configured to determine the target terminal number range in which the current terminal number is located according to the current number of terminals on the target physical resource and multiple pre-divided terminal number ranges;

[0152] The threshold value query unit 402 ...

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Abstract

The invention relates to a method and device for determining a decision threshold of DTX detection, and a DTX detection method and device. The method for determining the decision threshold comprises the following steps: determining a target terminal number range where a current terminal number is located according to the current terminal number on a target physical resource and multiple pre-divided terminal number ranges; determining a target signal to noise threshold and a target relative power threshold corresponding to the target terminal number range according to a pre-established corresponding relation among the terminal number range, the signal to noise threshold and the relative power threshold; dynamically adjusting the target signal to noise threshold and the target relative power threshold according to a physical measurement value, and determining the adjusted target signal to noise threshold and the adjusted target relative power threshold as the decision threshold of DTX detection. According to the DTX detection method, the decision threshold determined by the method for determining the decision threshold of the DTX detection is used for performing the DTX detection of each terminal on the target physical resource. By adoption of the technical scheme, the DTX detection performance can be improved.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a method and device for determining a decision threshold value of DTX detection, and a method and device for DTX detection. Background technique [0002] In the wireless communication system, specifically in the LTE (Long Term Evolution) system, in the uplink, the terminal uses PUCCH (Physical Uplink Control Channel) to send uplink scheduling signaling and downlink sharing to the base station. Channel ACK (Acknowledgement, acknowledgment character) / NACK (Negative ACKnowledgment, negative character) feedback information or channel quality indicator CQI (Channel Quality Indicator, channel quality indicator) feedback information. When the PUCCH feeds back the ACK / NACK feedback information of the downlink shared channel, the PDCCH (Physical Downlink Control Channel, physical downlink control channel) must be decoded first. If the terminal cannot correctly decode t...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W28/02
CPCH04W24/02H04W28/0221H04W28/0231
Inventor 吴顺妹付杰尉刁穗东
Owner COMBA TELECOM SYST CHINA LTD
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