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Method and device for framing data stream

A data frame and data stream technology, applied in the field of communication, can solve the problems of resource pressure and cost pressure, and achieve the effect of solving resource pressure and cost pressure, saving programmable logic resources and design costs, and saving programmable logic resources.

Inactive Publication Date: 2011-03-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a data stream framing method and device to at least solve the above-mentioned problems of resource pressure and cost pressure caused by the increase of programmable logic resources

Method used

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  • Method and device for framing data stream
  • Method and device for framing data stream
  • Method and device for framing data stream

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Embodiment Construction

[0017] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0018] refer to figure 1 , shows a flow chart of the steps of a data stream framing method according to Embodiment 1 of the present invention, including the following steps:

[0019] Step S102: bit-shifting the input data stream;

[0020] Wherein, the input data stream is in a frame out-of-sync state, and no data frame header is detected within a complete optical transport network data frame period.

[0021] In this step, the system does not detect the data frame header of the input data stream within a complete optical transport network data frame period, determines that the input data stream is in a frame out-of-sync state, and performs bit (Bit) on the data stream shift, such as figure 2 show...

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Abstract

The invention discloses a method and a device for framing a data stream. The method for framing the data stream comprises the following steps of: performing bit shifting on the input data stream, wherein in the data stream, frame headers of a data frame are not detected in an integrated light transmission network data frame period; judging whether the data frame headers of at least two continuous data frames and the data frame periods are correct or not in the shifted data stream; and if the data frame headers of the at least two continuous data frames and the data frame periods are correct in the shifted data stream, entering a framing state and framing the shifted data stream. By the method and the device for framing the data stream, the contradiction that programmable logic grows linearly along with service capacity is relieved and programmable logic resources and design cost are saved under the background condition of large-capacity transmission.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data flow framing method and device. Background technique [0002] The bearer network plays a connecting role in the telecommunication network. It guides each service information flow from the source end to the destination end according to the requirements of the service layer. Due to the explosive growth of IP services and other packet-based data services transmitted on the network , the requirements for transmission capacity are constantly increasing rapidly. An optical transport network based on an OTN (Optical Transport Network, Optical Transport Network) emerges as the times require, meeting the requirements for transporting massively increasing service capacity. During its development, because the business capacity transmitted is much larger than before, higher requirements are put forward for hardware and programmable logic resources in terms of high-speed interfaces ...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04L1/00
CPCH04J3/0602
Inventor 孙巨揆
Owner ZTE CORP
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