Linux: How to improve performance of BT when conflict with 2.4GHZ WIFI?

Hong Gao

Other Parts Discussed in Thread: CC2564C

Tool/software: Linux

Hello,

We have phones equipt CC2564C connect to BT handset with HSP or HFP.

We found in Cisco WiFi 2.4GHZ infrastructure, there are big interference between WIFI and Bluetooth, the voice quality is very back, especially in MSBC mode.

When we tried with another phone with an old CSR chip, no such problem.

We found set AFH happened more frequently with TI chip than CSR ones.7823.My Capture Files.rar

Do you know such problem with TI chip and do you have any solutions about it?

The airsniffer logs are attached.

Your help is very appreciated, thank you very much.

Regards

Gao Hong

over 7 years ago

0 Vihang Parmar over 7 years ago

TI__Mastermind 29301 points

Hello Gao,

Do you have the AFH (Adapative Frequency Hopping) feature disabled in your system?

Best regards,
Vihang

0 Hong Gao over 7 years ago in reply to Vihang Parmar

Intellectual 850 points

Hello,

AFH is enabled and you can find it in airsniffer log.

Have you meet with such bad interoperability between CC2564C and WIFI? There is great noise in bluetooth and lost connect when not close(2-3 meters away).

Do you have any idea or solutions for this?

Thanks.

Regards

Gao Hong

0 Hong Gao over 7 years ago in reply to Hong Gao

Intellectual 850 points

By the way, we use MSBC in CC2564C and it works better in mode CVSD in the case. THe CSR chip use CVSD mode.
But even in CVSD mode, CC2564C has done much more frequent AFH settings than CSR chip.

0 Hong Gao over 7 years ago in reply to Hong Gao

Intellectual 850 points

Hello,

Do you meet with same problem or is there any suggestions?

Regards

Gao Hong

Bluetooth®︎

Bluetooth forum

Linux: How to improve performance of BT when conflict with 2.4GHZ WIFI?