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GB/T 39845-2021LTE-based broadband trunking communication(B-TrunC) system—Technical requirements for network equipments (Phase 1) (English PDF)

基于LTE技术的宽带集群通信（B-TrunC）系统网络设备技术要求（第一阶段）

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 9, 2021

Implementation date

October 1, 2021

Scope

GB/T 39845-2021 is the English-translated version of 基于LTE技术的宽带集群通信（B-TrunC）系统网络设备技术要求（第一阶段）.

GB/T 39845-2021 is the part of the Chinese B-TrunC series that sets the technical requirements of the network equipment in phase 1.

It defines the architecture and the protocols of the equipment, the service functions and their performance, the system functions and the interfaces, and the requirements on the base station and on the trunking core network.

It applies to the base stations and the core network of a phase 1 LTE-based broadband trunking system. Equipment makers and the operators of professional radio networks use it. Issued on 9 March 2021, it has applied since 1 October 2021.

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Document preview — GB/T 39845-2021

National Standard of the People's Republic of China

ICS: 33.060
Classification: M 36

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions, abbreviations
4 Architecture and protocol
4.1 System Architecture
4.2 Protocol architecture
5 Business function and performance requirements
5.1 Business function requirements
5.2 Mobility management requirements
5.3 Business performance requirements
6 System function requirements
6.1 User plane IP address
6.2 Priority
6.3 Total network
6.4 End-to-end encryption (optional)
6.5 Status message and short data protocol
6.6 Voice overPDCP function (optional)
6.7 Media negotiation mechanism
7 System interface requirements
7.1 Air interface requirements
7.2 Terminal to cluster core network interface requirements
7.3 Cluster Core Network to Dispatcher Interface Requirements
8 Base station equipment requirements
8.1 Functional requirements
8.2 Transmitter and receiver performance requirements
8.3 Interface requirements
8.4 Operation and maintenance (O
8.5 Other requirements
9 Cluster core network equipment requirements
9.1 Equipment functional requirements
9.2 Other requirements
Appendix A (Normative Appendix) Performance
Index
Appendix B (Normative Appendix) Status Message and Short Data Protocol References

Foreword

This standard is one of the series of standards for the broadband trunking communication (B-TrunC) system (phase 1) based on LTE technology. The structure and name are expected to be as follows.

---General technical requirements for broadband trunking communication (B-TrunC) system based on LTE technology (Phase 1) (GB/T 37291);

---B-TrunC system interface technical requirements based on LTE technology (Phase 1) Air interface (GB/T 37290);

--- LTE-based broadband trunking communication (B-TrunC) system interface technical requirements (phase 1) terminal to trunking core Heart network interface (GB/T 37289);

--- LTE-based broadband trunking communication (B-TrunC) system interface technical requirements (phase 1) trunking core network to Dispatcher interface (GB/T 37287);

---B-TrunC system interface test method based on LTE technology (Phase 1) Air interface (GB/T 39840);

---B-TrunC system interface test method based on LTE technology (Phase 1) Terminal to trunking core Heart network interface (GB/T 39838);

---B-TrunC system interface test method based on LTE technology (Phase 1) Trunking core network to Dispatcher interface (GB/T 39846);

---Technical requirements for network equipment of broadband trunking communication (B-TrunC) system based on LTE technology (Phase 1) (GB/T 39845);

---Technical requirements for terminal equipment of broadband trunking communication (B-TrunC) system based on LTE technology (Phase 1) (GB/T 39839);

---B-TrunC system terminal radio frequency test method based on LTE technology (Phase 1);

---Based on LTE technology broadband trunking communication (B-TrunC) system base station radio frequency test method (the first stage).

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the technical requirements for private network broadband trunking network equipment based on LTE technology, defines the architecture and protocol of network equipment, Business function and performance requirements, system function and interface requirements, base station and trunking core network equipment requirements.

This standard applies to the base station and trunking core network of the broadband trunked communication (B-TrunC) system (phase 1) based on LTE technology equipment.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 37287 Broadband Trunking Communication (B-TrunC) System Interface Technical Requirements (Phase 1) Based on LTE Technology Set Group core network to dispatcher interface

GB/T 37289 Broadband trunked communication (B-TrunC) system interface technical requirements based on LTE technology (Phase 1) Terminal To the cluster core network interface

GB/T 37290 Broadband trunked communication (B-TrunC) system interface technical requirements based on LTE technology (Phase 1) Over the air interface

YD/T 2560 (all parts) TD-LTE digital cellular mobile communication network Uu interface physical layer technical requirements (first stage)

YD/T 2560.2-2013 TD-LTE Digital Cellular Mobile Communication Network Uu Interface Physical Layer Technical Requirements (Phase 1) No. 2 Part. physical channel and modulation

YD/T 2571-2015 TD-LTE Digital Cellular Mobile Communication Network Base Station Equipment Technical Requirements (Phase 1)

YD/T 2628.1-2015 Evolved Mobile Packet Core Network (EPC) Equipment Technical Requirements Part 1: Support E- UTRAN access

3 Terms and definitions, abbreviations

3.1 Terms and definitions

The following terms and definitions apply to this document.

3.1.1 Dispatcher

Connected to the LTE broadband trunking core network through wired or wireless means, special terminals that can initiate trunking dispatch services, and business permissions Higher than ordinary terminals. [GB/T 37291-2019, definition 3.1.1]

3.1.2 Broadband trunking

Based on broadband wireless mobile communication technology, it supports broadband data transmission services, voice and multimedia forms of cluster command and dispatch services. With wireless communication system.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 32 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 45434.1-2025|GB/T 29239-2024|GB/T 43941.1-2024|GB/T 43941.2-2024|GB/T 44183-2024|GB/T 42889-2023

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