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GB/T 28505-2012Technical specification of national No.7 signalling system 2 Mbit/s high speed link (English PDF)

国内No.7信令方式技术要求 2Mbit/s高速信令链路

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Issued by

Standardization Administration of China

Level / Type

National · Recommended

Issue date

June 29, 2012

Implementation date

October 1, 2012

Scope

GB/T 28505-2012 is the English-translated version of 国内No.7信令方式技术要求 2Mbit/s高速信令链路.

GB/T 28505-2012 — This standard specifies the technical requirements for high-speed signaling link, but also provides high-speed signaling link in the signaling of No.7 online in principle.

This standard applies to No.7 signaling network signaling links in a higher load.

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Document preview — GB/T 28505-2012

National Standard of the People's Republic of China

ICS: 33.040.30
Classification: M 12

Issued by: Standardization Administration of China

Preface
1 Scope
2 Normative references
3 Terms and definitions, abbreviations
3.1 Terms and definitions
3.2 Abbreviations
4 Signaling data link level (MTP-1)
5 Signaling link function level (MTP-2)
5.1 Signaling link function level features
5.2 Format signal unit
5.3 Program
5.4 Timers
6 Signaling network function and message level (MTP-3)
6.1 Overview
6.2 Switching and message switching confirmation message (COO and COA)
6.3 Twenty-three on the interface to modify the contents of
6.4 The third level of the timer
Principle 7 of the high-speed signaling link signaling Web
Appendix A (normative) based Q.703 proposed high-speed links SDL
Annex B (informative) using high-speed signaling link in the n × 64kbit/s channel protocol
B.1 Overview
B.2 using the n × 64kbit/s channels of high-speed links Message Transfer Part
B.2.1 signal Data Link (MTP-1)
B.2.2 signaling link functions
B.2.3 Signalling network functions and messages
Principles B.3 using n × 64kbit/s channels of high-speed links
References

Foreword

This standard rule according to GB/T 1.1-2009 given draft.

The standard reference method using redrafted ITU-TQ.703.1996 "No.7 Signaling System Message Transfer Part signaling link" in the Content related to the preparation of high-speed signaling link, the degree of consistency with the equivalent of a non-ITU-TQ.703.

The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

The standard by the China Communications Standards Association.

This standard was drafted. the Ministry of Industry and Information Technology and Telecommunications Research Institute, Huawei Technologies Co., Ltd.

1 Scope

This standard specifies the technical requirements for high-speed signaling link, but also provides high-speed signaling link in the signaling of No.7 online in principle.

This standard applies to No.7 signaling network signaling links in a higher load.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document.

YDN068 domestic No.7 signaling system technical specification message transfer part (MTP) ITU-TG.703 physical/electrical characteristics of hierarchical digital terminal equipment digital interface (Digitalterminalequipments-General. Physical/electricalcharacteristicsofhierarchicaldigitalinterfaces) ITU-TG.704 digital terminal equipment 1544, 6312, 2048, 8488 and 44,736kbit/s level sync frame structure (Digitalterminalequipments-General. Synchronousframestructuresusedat1544,6312,2048,8448 and44736kbit/shierarchicallevels) ITU-TQ.704 No.7 signaling system switching and signaling specification Message Transfer Part signaling network functions and messages (Switching andsignalingspecificationsofSignalingSystemNo.7-Messagetransferpart (MTP) Signalingnet-workfunctionsandmessages)

3 Terms and definitions, abbreviations

3.1 Terms and Definitions

The following terms and definitions apply to this document.

3.1.1

Flag search mode flaghunting the original 64kbit/s octet counting mode using link (OCTETCOUNTING) different, 2Mbit/s high-speed signaling After missing link protocol flag, flag link into the search mode, in this mode, only to find the code stream flag instead of the check After the process of looking for the detection of octet counting, find flag the link flag to exit search mode.

3.2 Acronyms

The following abbreviations apply to this document.

AERM AlignmentErrorRateMonitor positioning error rate monitoring EIM ErrorIntervalMonitor error monitoring period FISU Fil-InSignalUnit fill signals unit LSSU LinkStatuesSignalUnit link status signal unit

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