| CPC H04W 28/0268 (2013.01) [H04L 12/4641 (2013.01); H04W 28/0278 (2013.01); H04W 28/06 (2013.01); H04W 72/56 (2023.01)] | 4 Claims |
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1. A signal transfer device for forwarding high priority traffic frames and low priority traffic frames, comprising:
a control circuitry configured to periodically switch between a period that allows high priority traffic frames to be transmitted and a period that allows low priority traffic frames to be transmitted and, when the control circuitry detects that no high priority traffic frame arrives for a preset frame interval threshold or longer in the period that allows high priority traffic frames to be transmitted, release the period that allows high priority traffic frames to be transmitted and allocate the released period to the period that allows low priority traffic frames to be transmitted;
a frame arrival time information acquisition circuitry configured to obtain information of frame arrival times of the high priority traffic frames;
a frame interval calculation circuitry configured to calculate, in accordance with the information of frame arrival times obtained by the frame arrival time information acquisition circuitry, frame intervals between frames of the high priority traffic frames input in chronological order;
a frame interval threshold calculation circuitry configured to calculate a new value for the preset frame interval threshold in accordance with the frame intervals excluding a frame interval including the period that allows low priority traffic to be transmitted; and
a frame interval threshold configuration circuitry configured to change the frame interval threshold to the new value for the preset frame interval threshold.
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