Can NCS3.0.0 Matter template sample at NRF7002DK share single antenna for coexistence of BLE and WIFI protocols?

[Jeffery]

Hi Nordic

      As information of nrf connect SDK, NCS3.0.0 ble_coex sample at NRF7002 DK can share single antenna for BLE and WIFI protocols.

It only needs to set "CONFIG_COEX_SEP_ANTENNAS=n" at prj.conf. Then, BLE and WIFI both work concurrently and smoothly.

      At my custom Matter module, hardware almost followed up the schematic of NRF7002DK as below picture. There are three gpio pins connected between

NRF5340 and NRF7002, including REQ, STATUS0 and GRANT. One SW_CTRL0 pin output to swicth WIFI and BLE.

Unfortunately, in Matter sample, if setting "CONFIG_COEX_SEP_ANTENNAS=n", VS code built error since no local 

Kconfig defintion for CONFIG_COEX_SEP_ANTENNAS.

So, how shall I edit Matter sample code or Kconfig to reach this coexistence?

Jeff

[Amanda Hsieh]

Hi, 

As information of nrf connect SDK, NCS3.0.0 ble_coex sample at NRF7002 DK can share single antenna for BLE and WIFI protocols.

Are you able to build and run the ble_coex sample on your custom board without issue?

Unfortunately, in Matter sample, if setting "CONFIG_COEX_SEP_ANTENNAS=n", VS code built error since no local 

Which Matter sample are you using?

Regards,
Amanda H. 

[Jeffery]

1. Yes.

2. ncs3.0.0 Matter bridge application. Please tell me how to modify this sample code with single antenna coexistence.

Thanks

Jeff

[Amanda Hsieh]

The CONFIG_COEX_SEP_ANTENNAS is a local option defined in the KConfig file.

[Jeffery]

Hi Amanda

I did know CONFIG_COEX_SEP_ANTENNAS is a local option for ble_coex sample only.

My question is how to set single antenna shared for BLE and WIFI coexistence at Matter samples, such as

Matter bridge. CONFIG_COEX_SEP_ANTENNAS is undefined at Matter samples.

Jeff

[Amanda Hsieh]

The team said shared antenna configuration is not supported for Wi-Fi & Thread coexistence.