Meaning of Coex in Wifi and Bluetooth

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HaE_4338486
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Hi,

   Can anyone give me the clear picture of Collaborative Coex between Wifi & BT? Does it mean both can operate simultaneously without interference or one will be operating at a time by switching between each other at higher rates?

If one will be operating at a time, what is the use of AFH in BT?

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SheetalJ
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First comment on KBA 750 replies posted 500 likes received

Hi,

CYW4343W shares a single 2.4 GHz antenna between WiFi and Bluetooth.

For WICED implementation of the same, please refer /43xxx_Wi-Fi/apps/demo/ble_wifi_introducer.

Also, https://www.cypress.com/file/298336/download and https://community.cypress.com/servlet/JiveServlet/previewBody/2345-102-5-4689/4343w-DS_002-14797_0I_...  should be helpful.

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4 Replies
SheetalJ
Moderator
Moderator
Moderator
First comment on KBA 750 replies posted 500 likes received

Hi,

CYW4343W shares a single 2.4 GHz antenna between WiFi and Bluetooth.

For WICED implementation of the same, please refer /43xxx_Wi-Fi/apps/demo/ble_wifi_introducer.

Also, https://www.cypress.com/file/298336/download and https://community.cypress.com/servlet/JiveServlet/previewBody/2345-102-5-4689/4343w-DS_002-14797_0I_...  should be helpful.

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Thank you.. But in its(CYW4343W) data sheet, no where its mentioned that they work simultaneously.

And in our case they are two antennas which are interfaced through a SPDT switch... So am under the impression that switching between BT & Wifi occurs and only one can work at a given time. Can you pls clarify by some more proof to say that they work simultaneously.

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SheetalJ
Moderator
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Moderator
First comment on KBA 750 replies posted 500 likes received

Apologies for the confusion previously.!

I will correct my previous response. BT and WiFi functionality uses TDM by default, they do not operate simultaneously. We do not have any documentation regarding this as of now. You can try testing with a demo app though.

k..tq

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