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Equipment, system and method for transmitting spending information

A technology of overhead and customer information, applied in the field of block coding, can solve the problems of low coding efficiency at the physical layer, limited OAM information detection function, unstable OAM information bandwidth, etc., and achieve the effect of improving transmission performance and ensuring stable bandwidth

Active Publication Date: 2013-04-24
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 way of identifying the overhead coding block is: identifying by specifying a field in the coding block.

[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] In step 701, the client information consisting of user information and user control information is encoded into a 64B / 66B encoding block, which is called a client information encoding block.

[0067] In this step, the manner in which the client information is encoded into an encoding block is the same as the existing 64B / 66B encoding manner.

[0068] Step 702, configuring overhead information, encoding the generated overhead information into 64B / 66B encoding blocks, and marking them as overhead encoding blocks.

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

Embodiment 2

[0106] In this embodiment, the manner of identifying the overhead coded block is: identify the overhead coded block through integrity processing.

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

[0108] Table 3 is the coding rules in this embodiment. As shown in Table 3, the synchronization code of the overhead coding block is 10, which is to reduce the probability of algorithm collision. Overhead information and other ...

Embodiment 3

[0120] In this embodiment, the manner used to identify the overhead coding block is: identify the overhead coding block by its position in the code stream.

[0121] Figure 10 It is a specific flowchart of the method for sending overhead information in Embodiment 3 of the present invention. Such as Figure 10 As shown, the method includes:

[0122] Step 1001, encode client information into 64B / 66B coding blocks to form client information coding blocks.

[0123] Step 1002, configure overhead information, and encode the generated overhead information into 64B / 66B encoding blocks.

[0124] In this step, the overhead coding block may not have a synchronization code, and all 66 bits are used to represent overhead information, and check codes and other information may be added if allowed.

[0125] Step 1003, combine M overhead coding blocks and (N-M) customer information coding blocks into a big block, place the overhead coding blocks at fixed positions in the big block, add int...

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Abstract

A method for sending overhead information includes: encoding customer information into a 64B / 66B customer information code block; encoding configured overhead information into a 64B / 66B code block, and marking the code block as an overhead code block; and sending the customer information code block and the overhead code block, where M of every N sent code blocks are overhead code blocks (M and N are positive integers and M is smaller than N). A method for receiving overhead information includes: receiving the 64B / 66B code block; identifying the overhead code block according to an identifier of the overhead code block and extracting overhead information from the overhead code block; and decoding the customer information code blocks other than the overhead code blocks and obtaining the customer information. Through the foregoing methods, fixed bandwidth of the overhead information is ensured, and the OAM information transmission performance is improved.

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 a data communication network, 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, and to distinguish user load information from control information. For example, the frame structures of 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 consisting of 32 bytes and 1 row × 32 columns, and the ATM signal is a block frame consisting of 53 bytes. [0003] 64B / 66B is a block coding mechanism widely used in high-speed data transmission. Its purpose is to provide data block boundary determination and to provide control encoding in the data stream. At present, its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L25/4908H03M5/14
Inventor 蒋章震钟其文
Owner HUAWEI TECH CO LTD
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