Time division multiplexing method for hybrid flow fusion

A technology of time-division multiplexing and mixed traffic, applied in the field of wired communication, can solve problems such as data transmission delay and jitter that cannot be guaranteed, and achieve the effect of ensuring delay and jitter, small delay and jitter, and quality of service

Active Publication Date: 2019-12-20
BEIJING MXTRONICS CORP +1
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Traditional Ethernet can only be used to transmit BE data, and cannot guarantee data transmission delay and jitter

Method used

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  • Time division multiplexing method for hybrid flow fusion
  • Time division multiplexing method for hybrid flow fusion
  • Time division multiplexing method for hybrid flow fusion

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Embodiment Construction

[0036]The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] The invention discloses a time-division multiplexing method for mixed flow scheduling, wherein the flow refers to data flow, wherein the data includes periodic data and aperiodic data, and the method adopts porous scheduling for mixed flow in a time-sensitive network, A certain bandwidth is reserved for periodic data first, and a periodic data scheduling scheme closely arranged at the beginning and end is generated. The gap between periodic data is a time slice for aperiodic data transmission. Moreover, different scheduling methods are adopted for periodic data and non-periodic data. For periodic data (TT data), the method of pre-planning time channels is adopted, and the global clock is used as the reference and the scheduling table is used to send and receive messages. All sending and receiving times occur at In the respective...

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Abstract

The invention discloses a time division multiplexing method for hybrid flow fusion, which comprises the following steps of: setting a periodic data sending time slice in a time sensitive network for transmitting periodic data; wherein a pore time slice, namely an aperiodic data sending time slice, is arranged between the adjacent periodic data sending time slices and is used for transmitting aperiodic data; generating a data scheduling scheme in each TDMA period in the periodic data sending time slice and the non-periodic data sending time slice set in the step S1, and recording the data scheduling scheme as a porous scheduling scheme; and sending the periodic data and the non-periodic data by adopting the porous scheduling scheme generated in the step S2 to realize time division multiplexing of the periodic data and the non-periodic data in the time sensitive network. According to the invention, the real-time transmission of the periodic data in the mixed flow of the time sensitive network can be ensured, the periodic data is ensured to have relatively small time delay and jitter, and the service quality of the non-periodic data can also be ensured, so that the periodic data and the non-periodic data can be transmitted in a mixed manner.

Description

technical field [0001] The invention relates to a time-division multiplexing method for mixed traffic fusion, which belongs to the technical field of wired communication. Background technique [0002] With the continuous development of spacecraft technology, it puts forward new requirements for integrated avionics technology, mainly manifested in higher real-time data requirements, higher data transmission rate of the network, and high reliability of the system It is difficult for traditional networks to meet this new application requirement. Time Sensitive Network (TSN) is the latest new network technology based on Ethernet in the world, which has the characteristics of high bandwidth, high real-time performance, high reliability and high compatibility. The network is compatible with the advantages of time-triggered protocol and Ethernet technology, and can simultaneously transmit periodic data and aperiodic data flow on the same network platform. In the TSN network, peri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/841H04L12/851H04L12/863H04J3/00H04J3/24
CPCH04L47/6215H04L47/24H04L47/283H04J3/242Y02D30/70
Inventor 陶淑婷赵沛闫攀毛雅欣
Owner BEIJING MXTRONICS CORP
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