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ITU-T G.8300

Characteristics of transport networks to support IMT-2020/5G

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Organization: ITU-T
Publication Date: 1 May 2020
Status: active
Page Count: 18
scope:

This Recommendation documents the requirements for the layer one transport network for 5G, including hard isolation between aggregated digital clients. The digital clients are the digital streams to/from the 5G entities (e.g., RU, DU, CU, 5GC/NGC) and other digital clients carried in the access, aggregation and core transport networks. The requirements and characteristics are documented for each of the fronthaul, midhaul and backhaul networks as defined in this Recommendation.

The factors addressed include:

• Relationship of 5G network architecture to transport network architecture

• Operations, administration, and maintenance (OAM) requirements

• Timing performance and time/synchronization distribution architecture

• Survivability mechanisms

Document History

ITU-T G.8300
May 1, 2020
Characteristics of transport networks to support IMT-2020/5G
This Recommendation documents the requirements for the layer one transport network for 5G, including hard isolation between aggregated digital clients. The digital clients are the digital streams...

References

This document references:
ITU-T G.8271.1 - Network limits for time synchronization in packet networks with full timing support from the network Amendment 1
Published by ITU-T on October 1, 2020
This Recommendation specifies the maximum network limits of phase and time error that shall not be exceeded. It specifies the minimum equipment tolerance to phase and time error that shall be...
This document references:
ITU-T G.805 - Generic Functional Architecture of Transport Networks Series G: Transmission Systems and Media, Digital Systems and Networks Digital Networks - General Aspects
Published by ITU-T on March 1, 2000
A telecommunications network is a complex network which can be described in a number of different ways depending on the particular purpose of the description. This Recommendation describes the...
This document references:
ITU-T G.8271 - Time and phase synchronization aspects of telecommunication networks
Published by ITU-T on March 1, 2020
This Recommendation defines time and phase synchronization aspects in telecommunication networks. It specifies the suitable methods to distribute the reference timing signals that can be used to...
This document references:
ITU-T G.8271.1 - Network limits for time synchronization in packet networks with full timing support from the network Amendment 1
Published by ITU-T on October 1, 2020
This Recommendation specifies the maximum network limits of phase and time error that shall not be exceeded. It specifies the minimum equipment tolerance to phase and time error that shall be...
This document references:
ITU-T G.8273.2 - Timing characteristics of telecom boundary clocks and telecom time slave clocks for use with full timing support from the network
Published by ITU-T on October 1, 2020
This Recommendation specifies minimum requirements for time and phase synchronization devices used in synchronization network equipment that operates in the network architecture as defined in [ITU-T...
This document references:
ITU-T G.8275 - Architecture and requirements for packet-based time and phase distribution
Published by ITU-T on October 1, 2020
This Recommendation describes the general architecture of time and phase distribution using packet-based methods. This version of the Recommendation focuses on the distribution of time and phase...
This document references:
ITU-T G.8275.1 - Precision time protocol telecom profile for phase/time synchronization with full timing support from the network Amendment 1
Published by ITU-T on November 1, 2020
This Recommendation specifies a profile for telecommunication applications based on IEEE 1588 precision time protocol (PTP). The profile specifies the IEEE 1588 functions that are necessary to ensure...
This document is referenced by:
ITU-T Y.1366.1 - Network limits for time synchronization in packet networks with full timing support from the network
Published by ITU-T on March 1, 2020
This Recommendation specifies the maximum network limits of phase and time error that shall not be exceeded. It specifies the minimum equipment tolerance to phase and time error that shall be...
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