公开(公告)号：US11540234B2

公开(公告)日：2022-12-27

申请号：US17108716

申请日：2020-12-01

Applicant: EXFO Inc.

Inventor： Marco Di Pietro ,  Martin Levesque

IPC: H04W52/34 ,  H04W24/10 ,  H04W52/36

Abstract: A method comprising obtaining, via a test system, data from one or more tests of a mobile network having at least one antenna, wherein the data includes a stream of RF samples captured over-the-air or from a Common Public Radio Interface (CPRI) or enhanced CPRI (eCPRI) link; processing the data to detect peaks; performing an analysis of any detected peaks to identify any issues on the mobile network, the analysis including determining a relative power of the detected peaks; and causing display of a user interface that includes a reporting of any the relative power. Determining a relative power includes obtaining a baseline of a subset of the data and comparing an absolute power of the peak to the baseline.

公开(公告)号：US11134496B2

公开(公告)日：2021-09-28

申请号：US16543962

申请日：2019-08-19

Applicant: EXFO INC.

Inventor： Martin Levesque ,  Robert Matesevac ,  Eric Carignan

IPC: H04W24/02 ,  H04W72/04 ,  H04W24/10 ,  H04B10/2575 ,  H04B10/077

Abstract: A device and method for providing a mapping of antenna data into antenna containers within a common public radio interface (CPRI) signal exchanged between a radio equipment controller (REC) and at least one radio equipment (RE) are described. The method comprises finding a location of activity within the multiple CPRI basic frames; extracting a candidate antenna signal from the multiple CPRI basic frames starting from the location using a set of mapping parameters used in a standard antenna signal; comparing a candidate frequency content of the candidate antenna signal to a standard frequency content of the standard antenna signal to derive a validity score; associating the set of mapping parameters of the standard antenna signal to the observed mapping if the validity score meets predetermined conditions; and causing a report of the observed mapping.

公开(公告)号：US11121785B2

公开(公告)日：2021-09-14

申请号：US16738258

申请日：2020-01-09

Applicant: EXFO Inc.

Inventor： Martin Levesque

IPC: H04B17/345 ,  H04W24/08

Abstract: An interference detection method and system and for providing information about at least one interference in I/Q data obtained over-the-air or detected on a link between a radio equipment controller (REC) and at least one radio equipment (RE). The method includes noise filtering a set of the FFTs into an averaged FFT, filtering the averaged FFT with a high-pass filter to remove low frequency components, applying a power threshold on the high-pass filtered FFT to select at least one candidate peak having a power greater than the power threshold; outputting information about the at least one candidate peak, which is a potential interference. The interference detection method further includes multi-lane processing and power shift compensation.