Methods and systems for filter frequency response shift compensation for WLAN traffic

A network device, comprising:

• a first radio;
• a second radio, wherein the first radio and the second radio are collocated and operating in differing Wi-Fi bands;
• a first front end coupled to the first radio;
• and
• a second front end coupled to the second radio, wherein each of the first front end and the second front end includes circuitry which comprises:
• one or more filters enabling frequency domain coexistence between the first radio and the second radio operating in the differing Wi-Fi bands;
• and
• a coupler allowing feedback to the respective first radio or second radio, the feedback associated with a digital pre-distortion applied by the respective first radio or second radio to a signal input into the one or more filters, wherein the digital pre-distortion compensates for a temperature-sensitivity induced shift in the frequency response of the one or more filters.

A non-transitory computer-readable storage medium having stored thereon executable computer program instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• determining whether a frequency response of a filter has shifted, wherein the filter is a component of a network device for communicating data frames in a wireless network;
• in response to determining that the frequency response of the filter has shifted, applying a digital pre-distortion to a signal input into the filter to compensate for the shift in the frequency response;
• determining whether the digital pre-distortion has compensated for the shift in the frequency response of the filter;
• and
• in response to determining that the digital pre-distortion has not compensated for the shift in the frequency response of the filter, applying at least one PHY Protocol Data Unit (PPDU) scheduling scheme to the data frames communicated by the network device.