[Huawei MediaPad M5  Questions & Answers] o_giorkos:
Hi All,

I hope i am not doing something wrong as I GET NORMAL SPEEDS of wifi when using bluetooth headset (Anker Earbuds Slim - a cheap set)

I have lost my WIRED headphones which i was using with the USB-C to 3.5 adapter that came with the MEDIAPAD M5 8.4 which ibought a month ago (in July i think !!!)

i give my model no etc just in case it makes a difference

model number : SHT-W09

Build number : SHT-W09 8.0.0.168(C432)

while expecting the bluetooth set to be delivered( Anker Earbuds slim (18 pounds from amazon uk). ) i did a search for mediapad m5 and bluetooth and came upon this site.

With big frustration i read about the WIFI and bluetooth problem when using them concurrently.

when my headset arrived i did a simple test (played a video using VLC and MX Player

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///using a 5 GHz CONNECTION !!!!///

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WIFI speed is 17Mbps

Speed tests(run a few times each and its ALWAYS consistent speed so i write down only 1 speed test of each scenario)

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1. WIFI ONLY = 17Mbps

2. WIFI on and bluetooth on ONLY - NO device paired =17Mbps

3. WIFI on and bluetooth on with DEVICE PAIRED (no music played) =17Mbps

unpaired and paired headset and speed test is 17Mbps again

4. WIFI on and bluetooth on with DEVICE PAIRED AND MUSIC sent to headset = 17Mbps (using VLC)

5. WIFI on and bluetooth on with DEVICE PAIRED AND MUSIC sent to headset = 17Mbps (using MX PLAYER)

i could not do a test using NETFLIX and sending sound to the bluetooth headset, but I suspect that the only drop in WIFI speed would be the drop of th bandwidth used for streaming the content to the device....

now...lets move o 2.4 Ghz Connection

I run the speed test 4 times for each scenario (bluetooth off, blutooth on and paired NO MUSIC, bluetooth on and paired WITH MUSIC from video using VLC)

Run | bluetooth OFF | bluetooth on PAIRED no Music | bluetooth on PARIED WITH MUSIC |

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Run 1 | 15.1 Mbps | 6.6 Mbps | 6.2 Mbps |

Run 2 | 15.2 Mbps | 11.8 Mbps | 12.8 Mbps |

Run 3 | 15.2 Mbps | 14.7 Mbps | 13 Mbps |

Run 4 | 15.4 Mbps | 15.3 Mbps | 13.8 Mbps |

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Weird speed tests on the above test...as expected bluetooth of and WIFI giving consistent speed tet.

but WTF when bluetooth is on and paired no matter if music is sent via bluetooth or NOT !!!! the FIRST run on each case is consistent to what people say here with speed drop..but each subsequent run (2,3,4) are increasingly faster, or more or less the same (internet connections etc at the time)...

So all i can think of is WTF !!!

People STAY ON 5 Ghz connections....

unfortunately i am not an expert and maybe i m talking lots of cr*p !!!!

also i could not perform a test while streaming Netflix content and get a speed test then.. (if you can tell me how to do it i will try to get soem measurements, my other apps let me split-window so that i can run a speed test in a second window, but netflix will not give me the option to split window

Thanks,

George

EDIT:

Please read the info in the following link

https://www.ecnmag.com/article/2012/03/wi-fi-and-bluetooth-coexistence

I wanted to see exactly what happens to the frequencies of bluetooth, in relation to the 3 channels mainly used bu WIFI in the 2.4 Ghz Band)

the measurements i got when connected to the 2.4 instead on the 5Ghz , do make some sense, IF WHAT I READ IN THE ARTICLE i gave link above, is taking place. my theory (as i dont know what exactly the bluetooth device is up to)

1. by using Frequency hopping

in Run 1 i got poor speed in relation to others, as my bluetooth device was transmittin in the same band as the channel used by the 2.4 WIFI.

when in RUN2 to Run 4 it perhaps hopped to other frequencies (as explained in the article) thus NOT interfering with the WIFI and hence the better speeds !

2. using adaptive frequency

or maybe after the first run it identified lots of interference and it did this adaptive frequency trick to avoid transmiting in the same frequencies , as the ones used by the 2.4 WIFI channel used....