Why I do not find the receiver frequency setting in the LPAWUR_WakeupRadio_Rx code?

[Gwo]

Why I do not find the receiver frequency setting in the LPAWUR_WakeupRadio_Rx code?

While I can find the transmitter frequency setting in MRSUBG_WakeupRadio_Tx

as MRSUBG_RadioInitStruct.lFrequencyBase = 868000000;