Data sending method and device

A data sending method and data technology, applied in the field of communication, can solve problems such as insufficient reassembly buffer and packet loss at the receiving side
CN108540221AActive Publication Date: 2018-09-14ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZTE CORP
Publication Date
2018-09-14

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Abstract

The invention provides a data sending method and device. The method comprises the steps that: an Optical Line Terminal (OLT) divides logic links supported by an Optical Network Unit (ONU) into one ora plurality of logic link groups; and the OLT allocates a bandwidth to the logic link groups of the ONU, so that each logic link in the logic link groups of the ONU shares the bandwidth to send data.By the data sending method and device provided by the invention, logic links of a sender is subjected to logic link grouping, and a plurality of logic links are divided into one logic link group, so that the number of fragmentable links can be effectively reduced, thereby reducing the requirement for a reconstruction buffer of a receiver, solving a problem of packet loss caused by insufficient reconstruction buffer of a receiving side in the data sending process in the related art, and achieving the technical effect of effectively preventing packet loss.
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Description

technical field

[0001] The present invention relates to the communication field, in particular, to a data sending method and device. Background technique

[0002] In IEEE EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network), 10GEPON (10Gigabit EPON, 10 Gigabit Ethernet Passive Optical Network) systems, data frame fragmentation and fragmentation transmission are not supported, and the optical network unit (Optical Network Unit, ONU for short) in the process of sending uplink data, when the remaining uplink bandwidth is not enough to send a complete MAC (Media Access Control, Media Access Control) frame to be sent, then these remaining uplink bandwidth will be Discard, the MAC frame to be sent will be sent after the next time the ONU obtains the upstream bandwidth. It is divided into multiple parts for transmission, that is, EPON and 10GEPON systems will not send MAC frames in fragments. Under such a mechanism, each MAC frame sent by the ONU will not be ...

Claims

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