nRF5340 concurrent BIS sink + BIS source using SoftDevice Controller — supported in NCS v2.6?

I am aware from this post https://devzone.nordicsemi.com/f/nordic-q-a/106424/ble-audio-test-app-supporting-both-cis-and-bis that the primary LE Audio controller does not support concurrent isochronous roles, but the SoftDevice Controller (SDC) does support concurrent CIS and BIS.
My question is specifically about concurrent BIS sink + BIS source (two BIS roles, no CIS involved) using the SDC in NCS v2.6:
1. Does the SDC in NCS v2.6 support running BIS sink and BIS source simultaneously on the nRF5340?
2. Does simultaneous sink + source cause RF self-interference on the nRF5340’s single antenna? Is there a recommended channel separation between the two BIS streams?
3. Is there sufficient CPU headroom on both cores to handle concurrent BIS roles alongside active I2S RX and TX?
4. What is the typical added latency of the re-broadcast step — does it add a full BIS interval or less?
5. Are there known limitations when multiple devices running this configuration operate simultaneously in close proximity?

Thanks

  • Hello, 

    Thank you for your questions. I'll collect responses to all and share in a later reply. Let me know if you prefer to get answers gradually.

    First, please let me know why you want to work with nRF Connect SDK v2.6.0 and not our newest release? We recommend using our most recent releases because there are updates to feature sets and functionality in newer releases. Specifically for LE Audio, we have qualified profiles for v3.x.x releases, and the most recent release is v3.3.0. 

    Best regards,

    Maria

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