The invention discloses a heterogeneous deterministic network cross-domain periodic mapping method, a heterogeneous deterministic network cross-domain periodic
mapping system and a related device, and belongs to the technical field of power
system communication, and the method comprises the following steps: for a power service end-to-end deterministic network formed by a plurality of different sub-network domains, monitoring a buffer
queue state through an edge gateway node of the heterogeneous deterministic network; performing
queue management on the data packets of the
service flow through the edge gateway node according to the
queue state monitoring result of the buffer area, and obtaining queuing and queue offset distribution results of the data packets in the buffer area; the edge gateway node calculates and distributes a mapping period of the cross-domain network; and in combination with queuing and queue offset allocation results of the data packets in the buffer area, the edge gateway node feeds back and optimizes the time
delay determinacy guarantee condition of the
service flow, and the allocation of network resources and the routing strategy of the
service flow are adjusted. According to the method,
dynamic mapping of different network periods in a heterogeneous deterministic network scene can be realized, and scene requirements of dynamic changes of services and networks can be better met.