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Method and device for realizing SDII/SONET mixed application

A mixed application and business technology, applied in the communication field, can solve the problems of high cost, not supporting the mixed application and processing of two kinds of protocol business, and achieve the effect of reducing cost and expanding the scope of application

Active Publication Date: 2010-01-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Single processing of SDH protocol or SONET protocol, does not support mixed application and processing of services of the two protocols
[0005] For the same functional requirements, only because of the differences in the details of the SDH and SONET protocols, it is relatively expensive to develop two sets of equipment

Method used

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  • Method and device for realizing SDII/SONET mixed application
  • Method and device for realizing SDII/SONET mixed application
  • Method and device for realizing SDII/SONET mixed application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: Processing method when vc4 and sts1 are mixed

[0054] As shown in Table 1 for the channel number, set up a 5-bit counter, num[4:3], num[2], num[1:0] respectively represent the high 2 (bit), the middle (bit) and the low 2 (bit) bits used to represent the channel number. Table 2 shows the correspondence between services and channel numbers when vc4 and sts1 are mixed. in,

[0055] 0#stm4 contains 4 vc4, namely vc40, vc41, vc42, vc43;

[0056] 1#stm12 includes 4 sts3, namely sts30, sts31, sts32, sts33;

[0057] There are three sts1 in each sts3, which are sts10, sts11, and sts12.

[0058] Table 1

[0059] num[4:3]

num[2]

num[1:0]

SDH

2’b00

stm4 number

vc4 number

SONET

sts1 number

sts12 number

sts3 number

[0060] Table 2

[0061] 1.25G

Embodiment 2

[0062] Embodiment 2: Processing method when mixing au3 and sts1

[0063] As shown in Table 3 for the channel number, set up a 5-bit counter, num[4:3], num[2], num[1:0] respectively represent the high 2 (bit), the middle (bit) and the low 2 (bit) bits used to represent the channel number. Table 4 shows the correspondence between services and channel numbers when au3 and sts1 are mixed. Among them, 0#stm4 has 4 aug3s, which are aug30, aug31, aug32, aug33; each aug3 has 3 aug3s, which are au30, au31, au32; 1#s tm12 contains 4 sts3, which are sts30 , sts31, sts32, sts33; each sts3 has three sts1, which are sts10, sts11, sts12.

[0064] table 3

[0065] num[4:3]

num[2]

num[1:0]

SDH

au3 number

stm4 number

aug3 number

SONET

sts1 number

sts12 number

sts3 number

[0066] Table 4

[0067] 1.25G

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Abstract

A method and device can realize SDH and SONET protocol service mixing application in single set equipment. Said method includes according to service protocol type setting-up protocol indication signal; distributing service channel for SDH and SONET service and to make encoding to said distributed service channel; according to service encoding and protocol indication signal, dividing SDH and SONET service, then respectively entering each service process unit to make process; after completing process, according to service encoding and protocol indication signal reassembly. Said device includes control unit, counter, memory unit, and SDH service process unit and SONET service process unit. The present invention can enlarge single set equipment service process performance and reduce cost.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a service processing method and device for optical transmission. Background technique [0002] SDH and SONET are the basic protocols of optical transmission. The transmission equipment developed based on the SDH protocol is mainly used in Europe, China and other places, and the transmission equipment developed based on the SONET protocol is mainly used in North America and other places. The basic concepts of the two protocols are the same, but there are slight differences in some details (handling of pointers and overhead, arrangement of payload types). [0003] Existing transmission equipments only deal with SDH protocol or SONET protocol. There are mature solutions for these two protocols respectively, but they do not support mixed processing of the two services. For example, to process two 622M services, it can only be 2×STM4 (SDH) or 2×STS12 (SONET), not 1×ST...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 丁涛杨志军李春荣朱景琳赖镔
Owner HUAWEI TECH CO LTD
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