Method, device and system of data transmission

Abstract

The invention discloses a method, a device and a system of data transmission, and belongs to the technical field of communication. The method comprises that a first node device receives and caches a specified business group sent by a second node device, when the first node device needs to transmit messages of multiple structure-agnostic transport over packet (SAToP) or circuit emulation service over packet switched network (CESoPSN) businesses in the cached specified business group, the first node device confirms that whether messages of the out-of-step SAToP or CESoPSN businesses exist in the specified business group, if yes, the first node device obtains adjustment values of the messages of the out-of-step SAToP or CESoPSN businesses according to a preset rule, and adjusts the out-of-step SAToP or CESoPSN businesses according to the adjustment value, so that the messages of the multiple SAToP or CESoPSN businesses in the specified business group can be enabled to be transmitted synchronously.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, device and system for transmitting data. Background technique [0002] With the development of communication technology, many existing networks have been upgraded, such as migrating MSTP (Multi-Service Transfer Platform, SDH-based multi-service transmission platform) to SAToP (Structure-Agnostic Time Division Multiplexing (TDM) over Packet, unstructured simulation) or CESoPSN (Structure-Aware Time Division Multiplexed (TDM) Circuit Emulation Service over Packet Switched Network, structured simulation). Among them, in the process of migrating from the MSTP network to the SAToP or CESoPSN network, SAToP or CESoPSN services are generally used to transparently transmit ML-PPP (PPP Multilink Protocol, point-to-point multilink protocol) or IMA (Inverse Multiplexing for ATM, ATM reverse Multiplexing) services, so the real-time performance between multiple E1 or ...

AI Technical Summary

Problems solved by technology

However, in the scenario of migrating MSTP to SAToP or CESoPSN, each E1 or T1 uses SAToP or CESoPSN services, and each E1 or T1 transmits data independently through different SAToP or CESoPSN services. However, due to differences in SAToP or CESoPSN service paths or IP (Internet Protocol, network protocol) network is not real-time, which leads to delay differences in service transmission between multiple E1 or T1, if the base station or BSC (Base Station Controller, base station controller) is multiple E1 or Due to the delay difference between multiple SAToP or CESoPSN services, the bundling services of T1 services will cause out-of-order on the base station or BSC, resulting in a large amount of packet loss.

[0003] In the existing technical solutions, in the scenario of migrating MSTP to SAToP or CESoPSN, the BSC or base station can only passively accept the delay between services. When the delay is too large, packet loss will occur or the link will be removed from the bonding group. cause data transfer failure

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