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Frame trigger recreation method and frame trigger recreator

a frame trigger and recreator technology, applied in the direction of correct operation testing, digital transmission, synchronisation arrangement, etc., can solve the problems of not only being rather complex, but not providing the frame trigger by the application, so as to achieve the effect of reducing inaccuracy, improving accuracy, and increasing efficiency

Active Publication Date: 2021-04-15
ROHDE & SCHWARZ GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a method to generate a periodic trigger within a receiver hardware, which can improve efficiency. Additionally, measuring the period can provide information on the transmitter clock reference, which can increase accuracy.

Problems solved by technology

Unfortunately, in many situations, said frame trigger is not provided by the application to be tested.
Disadvantageously, said apparatus and method are not only rather complex, which leads to inefficiency, but do also not allow for recreating a frame trigger being obligatory for particularly accurate measurements.

Method used

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  • Frame trigger recreation method and frame trigger recreator
  • Frame trigger recreation method and frame trigger recreator
  • Frame trigger recreation method and frame trigger recreator

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Embodiment Construction

[0030]Before some exemplary embodiments of the invention will be explained in detail, a few further aspects of the invention are noted in the following for the sake of completeness:

[0031]The invention may especially employ a time or heartbeat trigger preferably with automatic tuning and configuration from a signal demodulation measurement.

[0032]It is noted that a typical time trigger may especially be implemented in software or hardware. When implemented in hardware, it may preferably be locked to a receiver reference clock, rather than to a transmitter reference clock. Additionally, the invention may especially automatically tune the time or heartbeat trigger to the measured transmitter clock or reference frequency preferably from a carrier frequency or sample rate error measurement.

[0033]Moreover, locking the time trigger to the transmitter clock may especially be essential since the virtual frame trigger should correlate to the received signal not only during configuration but al...

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PUM

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Abstract

A frame trigger recreation method is provided. Said frame trigger recreation method comprises the steps of generating a periodic trigger on the basis of a receiver clock with at least one period adjustment and at least one offset based on a difference between the receiver clock and a transmitter clock.

Description

TECHNICAL FIELD[0001]The invention relates to a frame trigger recreation method and a frame trigger recreator.BACKGROUND ART[0002]Generally, in times of an increasing number of applications providing wireless communication capabilities, there is a growing need of a frame trigger recreation method and a frame trigger recreator because exemplarily in the context of performing over-the-air measurements, a frame trigger is obligatory in order to verify correct functioning of said applications in a highly accurate and efficient manner. Unfortunately, in many situations, said frame trigger is not provided by the application to be tested.[0003]U.S. Pat. No. 8,130,884 B2 discloses an apparatus and a method for synchronizing a signal analyzer. The apparatus includes an Analog-to-Digital Converter (ADC), a signal storage unit, a trigger signal generation unit, a signal acquisition control unit, a signal analysis unit, and a time error control unit. The ADC converts the input signal into a cor...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L7/00
CPCH04L7/0087H04L1/24H04W24/08H04W56/00
Inventor RAMIAN, FLORIANLANG, FLORIAN
Owner ROHDE & SCHWARZ GMBH & CO KG