FIELD: radio engineering, communication.
SUBSTANCE: invention discloses systems and methods of generating multi-level filtering information, that are applicable to multiple messages. For a first filtering level, a set of filtering values is formed as a combination of all filtering values for filtering criteria which belong to a set of intersection of filtering criteria. On the receiver side, the overall transport entity first undergoes filtering based on second-level filtering information. First-level filtering information can be separated from the transport entity; if the transport entity is not discarded after first-level filtering, second-level filtering information, the obtaining of which requires processing the transport entity, is used to extract messages from a packet.
EFFECT: enabling first-level filtering in a transmitting device.
19 cl, 15 dwg
