Methods and apparatuses for graphically indicating station efficiency and pseudo-dynamic error vector magnitude information for a network of wireless stations

Patent metadata

Field	Value
Publication number	US-2024224250-A1
Application number	US-202418607395-A
Country	US
Kind code	A1
Filing date	Mar 15, 2024
Priority date	Aug 31, 2014
Publication date	Jul 4, 2024
Grant date	—

Abstract

Methods and apparatuses providing a visual metric of the efficiency of a network of devices communicating through a wireless access point (AP). These apparatuses and methods may also determine and display pseudo-dynamic error vector magnitude (EVM) information for a network of wireless stations, including displaying a pseudo-dynamic constellation diagrams using EVM information. These methods and apparatuses may transmit a plurality of sounding packets from each of one or more radio devices different modulation types (e.g., BPSK, QPSK, 16 QAM, 64 QAM, 256 QAM and 1024 QAM), and receiving at least some of the sounding packets at a second radio device (e.g., an access point) and determining EVM information from the received sounding packets, and displaying (or providing for display) a constellation diagram including pseudo-dynamic EVM information that is a constrained approximation of actual EVM information.

First claim

What is claimed is:

1 . A method for providing connectivity information associated with two or more wireless stations, the method comprising:
receiving, from a spectrum analyzer at each of the wireless stations, a description of power in a plurality of frequencies at one or more times to determine an ambient noise floor for each frequency in the plurality of frequencies; determining a pseudo-error vector magnitude (EVM) based on sounding packets transmitted between the two or more wireless stations; and displaying, on a graphical display, the determined ambient noise floor and signal to noise data based on the pseudo-EVM.

2 . The method of claim 1 , wherein the sounding packets have a predetermined modulation type.

3 . The method of claim 1 , further comprising displaying, on the graphical display, a pseudo EVM histogram based on the determined pseudo-EVM.

4 . The method of claim 1 , further comprising:
determining a constellation diagram associated with the sounding packets, wherein the constellation diagram includes a cloud of pseudo-EVM points around ideal points; and displaying, on the graphical display, the constellation diagram.

5 . The method of claim 1 , wherein the pseudo-EVM is based on an estimated error vector magnitude.

6 . The method of claim 5 , wherein the estimated error vector magnitude is based on an aggregation over a predetermined time period.

7 . The method of claim 5 , wherein the pseudo-EVM data is determined within a standard deviation of the estimated error vector magnitude.

8 . The method of claim 1 , further comprising weighting each ambient noise floor by a weight factor specific to each frequency, wherein displaying includes displaying the weighted ambient noise floor.

9 . The method of claim 8 , wherein weighting each ambient noise floor comprises determining an achievable data rate for each of the plurality of channels.

10 . The method of claim 9 , wherein the achievable data rate is based on the ambient noise floor for each frequency in the plurality of frequencies and a carrier to interference noise ratio (CINR) associated with a channel frequency.

11 . The method of claim 10 , wherein the CINR is based, at least in part, on a received signal strength associated with the channel frequency.

12 . The method of claim 11 , wherein the CINR is based on a difference between the received signal strength and the ambient noise floor.

13 . A method of selecting a channel frequency and bandwidth for a network comprising an access point and a plurality of stations, the method comprising:
receiving, from a spectrum analyzer at each of the stations, a description of power in a plurality of frequencies at one or more times to determine a ambient noise floor for each frequency in the plurality of frequencies; weighting each ambient noise floor by a factor weight specific to each frequency; determining a goodness value of each of channel of the plurality of channels based, at least in part, on the ambient noise floor for a subset of the plurality of frequencies within each channel; and presenting a list of the plurality of channels ranked by the determined goodness value.

14 . The method of claim 13 , further comprising determining an achievable data rate of each channel, wherein determining the goodness value is based at least in part on the determined achievable data rate.

15 . The method of claim 14 , wherein determining the achievable data rate is based on the ambient noise floor for each frequency in the plurality of frequencies and a carrier to interference noise ratio (CINR) associated with a channel frequency.

16 . The method of claim 15 , wherein the CINR is based, at least in part, on a received signal strength associated with the channel frequency.

17 . The method of claim 16 , wherein the CINR is based on a difference between the received signal strength and the ambient noise floor.

18 . The method of claim 13 , further comprising:
selecting a channel frequency from the list of the plurality of channels.

19 . The method of claim 13 , wherein the spectrum analyzer operates in parallel with a wireless receiver/transmitter included at each of the stations.

20 . The method of claim 13 , wherein the goodness value of each of the plurality of channels is based on a difference between a received signal power and the ambient noise floor.

21 . The method of claim 13 , wherein the goodness value is based, at least in part, on a bandwidth associated with the plurality of channels.

Assignees

• Ubiquiti Inc

Inventors

• Dayanandan Sriram
• Ponnampalam Vish
• Pera Robert J

Classifications

• H04W16/00

  Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures · CPC title

• H04W88/08

  Access point devices · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04W24/08

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04W72/563

  of the wireless resources · CPC title