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

Method and apparatus for detection of signal having random characteristics

A technology for testing signals and signals, used in multiplexing communications, radio wave measurement systems, transmission monitoring, etc., to solve problems such as network traffic error detection and impractical implementation of detection schemes

Active Publication Date: 2008-05-28
CISCO TECH INC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In cases where the test signal cannot be distinguished from network traffic, false detections from network traffic will occur frequently, making probing schemes impractical

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
  • Method and apparatus for detection of signal having random characteristics
  • Method and apparatus for detection of signal having random characteristics
  • Method and apparatus for detection of signal having random characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Throughout the specification, the preferred embodiments and examples shown should be considered as illustrations of the invention and not as limitations.

[0019] Wireless network traffic can result in bursts of energy (eg, collisions from transmitted packets) that cannot be distinguished from a single-pulse Bin-5 test signal burst (under currently existing receiver hardware). However, it is the object of the present invention to classify wireless Network traffic is separated from Bin-5 test signal transmissions. For the Bin-5 test signal, since the number of pulses in each burst is chosen randomly, the ratios of singles, pairs and triples are approximately 1:1:1. Approximately or approximately equal to 1:1:1 means that the single, pair and triple ratios are at least less than 8:4:1, preferably less than 4:2:1. Although the present invention has been described in the context of Bin-5 test signals containing single, pair and triple bursts, the present invention is suit...

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

A method for detecting a signal having random characteristics. A plurality of bursts are detected within a predetermined time period. The plurality of bursts are evaluated to determine how many pulses each of the plurality of bursts contains. The signal having random characteristics is present responsive to the ratio of number of bursts containing a first predetermined number of pulses being approximately equal to number of bursts containing a second predetermined number of pulses. For signals such as a Bin-5 Test Signal, the signal is determined to be present responsive to the number of singletons (bursts having one pulse), the number of pairs (bursts having two pulses) and the number of triplets (bursts having three pulses) being approximately equal.

Description

[0001] Cross References to Related Applications [0002] This application is related to US Patent Application Serial No. 10 / 910,682 filed August 3, 2004 and commonly assigned to Cisco Technologies, Inc., the assignee of the present invention. Background technique [0003] The present invention generally relates to the detection of signals having random properties, and more particularly to detection of signals having a random number of pulses in a preset time period, and random signals such as pulse width, pulse spacing, and random number of bursts. Signals of other possible random nature such as number of pulses. [0004] The US Federal Communications Commission (FCC) has issued a requirement for unlicensed wireless devices operating in the frequency bands 5.250-5.350 GHz or 5.470-5.725 GHz to adopt a mechanism to share these frequency bands with radar operations. These requirements are published in the FCC 5GHz report and rule RM-10371. [0005] However, the National Commu...

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 Applications(China)
IPC IPC(8): H04J3/00
CPCH04B17/007G01S7/021H04B17/0085H04B17/26
Inventor 克里斯托弗·G·麦尔
Owner CISCO TECH INC
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