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Equipment, system and method for transmitting spending information

An overhead and customer information technology, applied in the field of block coding, can solve the problems of reduced physical layer coding efficiency, limited OAM information detection function, unstable OAM information bandwidth, etc., to ensure stable bandwidth and improve transmission performance.

Active Publication Date: 2008-07-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current high-speed data communication system, when the physical layer OAM information is transmitted, it will cause the disadvantages of reduced coding efficiency of the physical layer, unstable bandwidth of OAM information, and limited detection function of OAM information.

Method used

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  • Equipment, system and method for transmitting spending information
  • Equipment, system and method for transmitting spending information
  • Equipment, system and method for transmitting spending information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] In this embodiment, the adopted method of identifying the overhead coding block is: in the coding block, it is identified by a designated field.

[0065] Figure 7 It is a specific flowchart of the method for sending overhead information in Embodiment 1 of the present invention. Such as Figure 7 As shown, the method includes:

[0066] Step 701: Encode the customer information composed of user information and user control information into a 64B / 66B encoding block, which is called a customer information encoding block.

[0067] In this step, the way the client information is coded into coding blocks is the same as the existing 64B / 66B coding mode.

[0068] Step 702: Configure overhead information, encode the generated overhead information into a 64B / 66B code block, and mark it as an overhead code block.

[0069] In this step, the overhead coding block adopts a control block format (Control Block Formats), and the overhead coding block is identified by a field specified in t...

Embodiment 2

[0106] In this embodiment, the adopted method of identifying the overhead coding block is: identifying the overhead coding block through integrity processing.

[0107] The operation steps in this embodiment are the same as Figure 7 The steps shown are the same, but the difference lies in that the method of encoding the overhead information and the method of identifying the overhead coding block in step 702 are different. Specifically: In the overhead coding block, the integrity algorithm is used to perform integrity processing on the content in the coding block, where the integrity algorithm can be a 16-bit cyclic parity check (CRC16) algorithm, and the content processed by the integrity algorithm can be It is the entire 66-bit encoding block, or it can be the 64-bit data after the synchronization code.

[0108] Table 3 is the coding rule in this embodiment. As shown in Table 3, the synchronization code of the overhead coding block uses 10, which is to reduce the probability of a...

Embodiment 3

[0120] In this embodiment, the adopted method of identifying the overhead coding block is: identifying the position of the overhead coding block in the code stream.

[0121] Picture 10 This is a specific flowchart of the method for sending overhead information in the third embodiment of the present invention. Such as Picture 10 As shown, the method includes:

[0122] Step 1001: Encode the customer information into a 64B / 66B encoding block to form a customer information encoding block.

[0123] Step 1002: Configure the overhead information, and encode the generated overhead information into a 64B / 66B coding block.

[0124] In this step, the overhead coding block may have no synchronization code, and all 66 bits are used to represent overhead information, and check codes and other information can be added if allowed.

[0125] Step 1003: Combine M overhead coding blocks and (N-M) customer information coding blocks into one large block, and place the overhead coding block at a fixe...

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Abstract

The invention discloses a deliver process of overhead information in operation cases, which comprises coding the user information into 64B / 66B user information coding modules, coding the overhead information which is allocated into 64B / 66B coding modules which are marked with an overhead coding module, delivering the user information module and the overhead coding module, wherein the overhead coding module is M in each coding modules with N number which are delivered, M and N are positive integers and M is smaller than N. The operation case of the invention further discloses a receiving process of the overhead information, which comprises receiving the 64B / 66B coding module, recognizing the overhead coding module according to the mark of the marked overhead coding module from which overhead information is extracted, decoding the user information coding module except the overhead coding module to obtain the user information. Through utilizing the processes, the fixed bandwidth of the overhead information is guaranteed and the OAM information transmission property is increased. The operation case of the invention further discloses an overhead information transmission system and the device.

Description

Technical field [0001] The present invention relates to block coding technology in communication transmission, in particular to a transmission method, system and equipment of overhead information. Background technique [0002] In data communication networks, block coding is usually used to determine the boundary of data processing, that is, the boundary of bytes (8-bit data) required for CPU processing to distinguish user load information and control information. For example, frame structures such as PDH signals, ATM signals, and packet-switched data packets are all considered block frames. For example, the frame of the E1 signal is a block frame of 1 row×32 columns composed of 32 bytes, and the frame of the ATM signal is a block frame composed of 53 bytes. [0003] 64B / 66B is a block coding mechanism widely used in high-speed data transmission. Its purpose is to provide the boundary determination of data blocks and provide control coding in the data stream. At present, its most ...

Claims

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Application Information

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IPC IPC(8): H04L29/06
CPCH04L25/4908H03M5/14
Inventor 蒋章震钟其文
Owner HUAWEI TECH CO LTD
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