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

A method for supporting inter-cell joint detection in prach anti-jamming technology

A joint detection and inter-cell technology, which is applied in the shaping network, digital transmission system, and baseband system components in the transmitter/receiver, can solve the problem of PRACH resource overlap, improve the success rate of terminal access, and ensure The success rate of network access and the effect of ensuring stability

Inactive Publication Date: 2020-01-03
JILIN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to propose a method for supporting inter-cell joint detection in the PRACH anti-interference technology, which can effectively solve the problem of PRACH in adjacent cells caused by the uncontrollable position of the PRACH after the anti-interference function takes effect. The problem of overlapping resources to reduce the occurrence of PRACH false detection and missed detection has the characteristics of high efficiency and high accuracy

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 for supporting inter-cell joint detection in prach anti-jamming technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] see figure 1 , a method for supporting inter-cell joint detection in a PRACH anti-interference technology, the specific implementation steps are as follows:

[0021] Since the starting time and length of the noise floor detection timer between cells may be different, when there is interference in the coverage area, the time for starting PRACH anti-interference in different cells may also be different. The following introduces several situations:

[0022] When the interference position of A cell is [X, Y], the PRACH frequency domain position of A cell is [M, N], and the interference position includes the PRACH frequency domain position, then A cell needs to adjust the PRACH frequency domain position. At the same time, because Neighboring cell B has not detected interference, and neighboring cell B has not yet performed PRACH frequency domain anti-inter...

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

Provided is a method for supporting the inter-cell combined detection in prach anti-interference technology. If a cell A detects the interference before a neighboring cell B and triggers the prach anti-interference process, the cell A needs to select the available PRACH position from the frequency domain position outside the frequency domain interference and the PRACH frequency domain position of the neighboring cell B; if the cell A detects the interference after the neighboring cell B and triggers the prach anti-interference process, the cell A needs to select the available PRACH position from the frequency domain position outside the frequency domain interference and the updated PRACH frequency domain position of the neighboring cell B; if the two cells detect the interference at the same time and trigger the anti-interference process, the cells respectively make the current PRACH frequency domain position ineffective and inform each other, and one of the cells adjust at first and informs the new PRACH frequency domain position to the other cell after the selection, the other cell selects the new PRACH frequency domain position through the combination with the current interference position, so that the problem that the Prach resource overlapping of the adjacent cells is caused by the uncontrollability of the Prach position after the anti-interference function takes effect can be effectively solved, and the method has the characteristics of high efficiency and high accuracy.

Description

technical field [0001] The invention relates to the field of PRACH anti-interference technology, in particular to a method for supporting inter-cell joint detection in the PRACH anti-interference technology. Background technique [0002] The existing PRACH (Physical Random Access Channel) anti-interference technology is implemented based on the noise floor measurement of a single cell. When there is continuous time domain or pulse interference for the uplink subframe of the LTE system within the coverage of the cell, the eNB (evolvedNode B , evolved base station) can obtain the average noise value of each prb (PHYSICAL RESOURCE BLOCK: physical resource block) in the frequency domain for a period of time (the timer can be set by itself) through noise floor measurement. When the average noise value of a prb When it is higher than a certain threshold (the noise threshold can be set by itself), the prb is regarded as an interfered prb, and anti-interference processing will be pe...

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): H04L1/00H04L25/03
CPCH04L1/0048H04L25/03331
Inventor 钱志鸿吕思潼田洪亮刘桂歧付钰
Owner JILIN UNIV
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