Method For Transmitting Prioritized Data And A Transmitter

A transmitter for transmitting continuously created data items from an aircraft to a receiver, wherein the data items have a plurality of data types and each data type has a different priority ranging from a highest priority to a lowest priority,

• wherein the transmitter comprises last-in-first-out buffers for storage of the continuously created data items, wherein for each data type a separate live buffer and a separate main buffer are provided and associated with the respective data type and data items of a specific data type are only storable in the associated buffers,
• wherein the transmitter is operable in a regular operation mode and a transmission operation mode,
• wherein in the regular operation mode the transmitter is adapted to continuously store continuously created data items of the plurality of data types in the associated main buffers,
• wherein in the transmission operation mode the transmitter is adapted to
• continuously store continuously created data items of the plurality of data types in the associated live buffers,
• transmit consecutive data packets from the aircraft to a receiver via a data transmission link, each data packet comprising a header section and a payload section, and
• select for each data packet the data to be transmitted in the payload section from the buffers, wherein any data item stored in a live buffer is transmitted before any data item stored in a main buffer, wherein of those data items stored in one of the live buffers, any data item of a data type having a higher priority is transmitted before any data item of a data type having a lower priority, and wherein of those data items stored in one of the main buffers, any data item of a data type having a higher priority is transmitted before any data item of a data type having a lower priority.

An aircraft comprising a transmitter for transmitting continuously created data items from an aircraft to a receiver, wherein the data items have a plurality of data types and each data type has a different priority ranging from a highest priority to a lowest priority,

• wherein the transmitter comprises last-in-first-out buffers for storage of the continuously created data items, wherein for each data type a separate live buffer and a separate main buffer are provided and associated with the respective data type and data items of a specific data type are only storable in the associated buffers,
• wherein the transmitter is operable in a regular operation mode and a transmission operation mode,
• wherein in the regular operation mode the transmitter is adapted to continuously store continuously created data items of the plurality of data types in the associated main buffers,
• wherein in the transmission operation mode the transmitter is adapted to
• continuously store continuously created data items of the plurality of data types in the associated live buffers,
• transmit consecutive data packets from the aircraft to a receiver via a data transmission link, each data packet comprising a header section and a payload section, and
• select for each data packet the data to be transmitted in the payload section from the buffers, wherein any data item stored in a live buffer is transmitted before any data item stored in a main buffer, wherein of those data items stored in one of the live buffers, any data item of a data type having a higher priority is transmitted before any data item of a data type having a lower priority, and wherein of those data items stored in one of the main buffers, any data item of a data type having a higher priority is transmitted before any data item of a data type having a lower priority.