Input synchronization for circular queuing and forwarding (CQF)

According to an embodiment, a first device transmits a timing marker frame, TMF, in a first transmission cycle. And the first equipment determines the sending time of the TMF. The first device determines a time difference between the transmission time of the TMF and a start time of a second transmission cycle. In one embodiment, the first device transmits a phase offset message (POM) indicating the time difference to a second device, and the first device transmits a phase offset message (POM) indicating the time difference to the second device. The first device transmits a frame in a transmission cycle following the first transmission cycle. 根据实施例，第一设备在第一发送循环中发送定时标记帧(timing marker frame，TMF)。所述第一设备确定所述TMF的发送时间。所述第一设备确定所述TMF的所述发送时间与第二发送循环的开始时间之间的时间差。所述第一设备向第二设备发送指示所述时间差的相位偏移消息(phase offset message，POM)。所述第一设备在所述第一发送循环之后的发送循环中发送帧。