Allocation of radio altimeter (RA) sub-bands to wireless avionics intra-communication systems

A system for for managing a plurality of Wireless Avionics Intra-Communication Systems (WAICSs) in a Radio Altimeter (RA) band, the system comprising:

• a spectrum sensing WAICS wirelessly connected with each of a plurality of WAICS transmitters, the spectrum sensing WAICS comprising a memory comprising programmed instructions stored thereon and one or more processors configured to be capable of executing the stored programmed instructions to:
• allocate a plurality of RA sub-bands within the RA band to the plurality of WAICS transmitters, wherein each of the WAICS transmitters is allocated at least one of the RA sub-bands;
• determine when an RA signal within the RA band at least partially overlaps with one of the plurality of RA sub-bands by continuously sampling the plurality of RA sub-bands within the RA band;
• allocate a control RA sub-band selected from one of the RA sub-bands for sending a control signal to one or more of the WAICS transmitters whose allocated RA-sub-band overlaps with the RA signal, wherein the control signal comprises information related to a time instant of detecting the RA signal and a sweep duration of the RA signal;
• and
• switch off at least one of the one or more WAICS transmitters associated with the one of the RA-sub-bands based on the determined time duration, when the determination indicates that the RA signal at least partially overlaps with the one of the RA sub-bands, wherein the time duration for switching off the one of the WAICS transmitters is determined by the WAICS transmitter based on the information received in the control signal.

A non-transitory computer readable medium having stored thereon instructions for managing Wireless Avionics Intra-Communication Systems (WAICSs) in a Radio Altimeter (RA) band to reduce interference that, when executed by one or more processors, cause the processors to:

• allocate, by a spectrum sensing WAICS, a plurality of RA sub-bands within the RA band to a plurality of WAICS transmitters, wherein each of the WAICS transmitters is allocated at least one of the RA sub-bands, wherein the spectrum sensing WAICS is wirelessly connected with each of the WAICS transmitters;
• determine by the spectrum sensing WAICS, when an RA signal within the RA band at least partially overlaps with one of the plurality of RA sub-bands by continuously sampling the plurality of RA sub-bands within the RA band;
• allocating, by the spectrum sensing WAICS, a control RA sub-band selected from one of the RA sub-bands for sending a control signal to one or more of the WAICS transmitters whose allocated RA-sub-band overlaps with the RA signal, wherein the control signal comprises information related to a time instant of detecting the RA signal and a sweep duration of the RA signal;
• determining a time duration for switching off the one or more WAICS transmitters based on the information in the control signal;
• and
• switch off at least one of the one or more WAICS transmitters associated with the one of the RA-sub-bands based on the determined time duration, when the determination indicates that the RA signal at least partially overlaps with the one of the RA sub-bands.