Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method and device for improving the measurement accuracy of signal-to-noise ratio

A technology for measuring accuracy and signal-to-noise ratio, which can be used in transmission monitoring, electrical components, transmission systems, etc., and can solve problems such as low signal-to-noise ratio measurement accuracy

Active Publication Date: 2016-11-30
ZTE CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a method and device for improving the measurement accuracy of signal-to-noise ratio, and the problem of low measurement accuracy of signal-to-noise ratio in the case of inaccurate TA measurement or other unfavorable factors in the actual environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for improving the measurement accuracy of signal-to-noise ratio
  • A method and device for improving the measurement accuracy of signal-to-noise ratio
  • A method and device for improving the measurement accuracy of signal-to-noise ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] like figure 1 As shown, the methods to improve the measurement accuracy of signal-to-noise ratio include:

[0046] For the M code channels corresponding to a resource block, calculate the signal power of N user code channels, the signal power of N pseudo user code channels corresponding to the user code channels, and remove the N user code channels and the N The idle code channel average power of the M-2N idle code channels of a false user code channel;

[0047] When judging that the signal power of the pseudo-user code channel satisfies the power leakage compensation condition, compensate the signal power of the user code channel corresponding to the pseudo-user code channel with the signal power of the pseudo-user code channel;

[0048]Calculate the non-user code channel average power of M-N code channels other than the N user code channels, and calculate the signal-to-noise ratio of each user channel according to the non-user code channel average power;

[0049] Wh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This solution provides a method and device for improving the measurement accuracy of signal-to-noise ratio. For the M code channels corresponding to a resource block, the signal power of N user code channels is calculated, and the N pseudo user code channels corresponding to the user code channels signal power, and the average power of the idle code channels of M-2N idle code channels except N user code channels and N pseudo-user code channels; when judging that the signal power of the pseudo-user code channels satisfies the power leakage compensation condition, the The signal power of the pseudo-user code channel compensates the signal power of the user code channel corresponding to this pseudo-user code channel; calculate the non-user code channel average power of M-N code channels except the N user code channels, according to The average power of the non-user code channel is used to calculate the signal-to-noise ratio of each user channel. In the case of inaccurate TA measurement or other unfavorable factors in the actual environment, this solution improves the PUCCH format2 series signal-to-noise ratio measurement accuracy, improves power control performance and control information detection performance.

Description

technical field [0001] The invention relates to the field of wireless communication, a method for improving the measurement accuracy of signal-to-noise ratio in the long-term evolution LTE (Long Term Evolution) physical uplink control channel PUCCH (Physical Uplink Control Channel) format2 series (including format2 / 2a / 2b) and devices. Background technique [0002] Currently, in the LTE system, the PUCCH is a basic LTE uplink physical control channel. Since the PUCCH format2 series has code division characteristics, therefore: 1. Power control has a very important impact on the PUCCH demodulation performance when multiple user equipment UEs (User Equipment) work together. Second, the PUCCH format2 series bears channel quality indicator / precoding matrix indicator / rank indicator CQI / PMI / RI (Channel Quality Indicator / Precoding Matrix Indicator / Rank Indication), system indication acknowledgment information ACK (Acknowledgment) and non-acknowledgment information NACK (Non- Ackno...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/336
Inventor 李瑞霞
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com