EPON dynamic energy-saving method based on threshold value comparison

Abstract

The invention provides a threshold value discussion-type energy-saving method based on an EPON. The method includes the steps of (1) enabling an OLT and ONUs to transmit MPCP data frames to each other so as to complete ONU registration, (2) enabling the OLT to record the state information of the ONU, forming a state list, conducting periodic detection, (3) storing downlink data frames from an SNI and uplink data frames from the ONUs in a local buffer at the OLT end, (4) designing a time slot assignment scheme according to the relation among the downlink data frame length, the uplink data frame length and a preset threshold value, (5) calculating a next circulation training period, the next sleeping time and the next wake-up time of the ONUs according to a time slot, (6) enabling the OLT to assemble a new GATE authorization frame, sending the new GATE authorization frame to the ONUs in a broadcasting mode, (7) enabling the OLT and the ONUs to carry out communication until REPORT frames from all ONUs are received, and (8) enabling the OLT to update a local state list. The method gives considerations to data delay at the OLT end and energy consumption at the ONU end simultaneously, so that academic and industrial expected targets can be achieved.

Description

technical field [0001] The invention relates to the technical field of energy saving of an access network, in particular to dynamic energy saving based on EPON terminals. Background technique [0002] At present, users' demand for bandwidth services is increasing, and PON-Passive Optical Network (PON-Passive Optical Network) has gradually become one of the best choices for wired broadband access due to its advantages of high bandwidth, multiple users, and convenient access. In addition, Ethernet gradually penetrates into the access network and the backbone network relying on its features such as simplicity, practicality, low price, and suitability for carrying IP data packets. The Ethernet-based passive optical network (EPON-Ethernet Passive Optical Network) obtained by combining Ethernet and passive optical network has the advantages of both, and has become a popular technology in the field of optical access network. At the same time, according to research on green network...

AI Technical Summary

Problems solved by technology

Therefore, the present invention can not only alleviate the problems of serious data delay and low network service quality in previous algorithms, but also make the sleep time of ONU end as much as possible, thereby improving energy saving efficiency

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