Rec. ITU-T L.1210 (12/2019) Sustainable power-feeding solutions for 5G networks
Summary
History
FOREWORD
Table of Contents
Introduction
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 5G networks
     6.1 5G network general description
     6.2 Cells coverage and impacts on powering strategy
     6.3 Type of 5G network and impacts on power load, power profile and feeding solution
7 Powering solutions
     7.1 Convergence and core room power supply
          7.1.1 Scenario 1: –48 VDC power supply solution
          7.1.2 Scenario 2: up to 400 VDC power supply solution
          7.1.3 5G power supply solution for aggregation and core equipment room
     7.2 Impact of 5G in C-RAN and D-RAN sites
          7.2.1 Changes due to 5G implementation
          7.2.2 Construction and modernization challenges posed by 5G network evolution
          7.2.3 Problems to be addressed by 5G power systems
               7.2.3.1 Low cost deployment
               7.2.3.2 Fast construction
               7.2.3.3 Efficient and energy saving
               7.2.3.4 Smooth evolution
               7.2.3.5 Simple O&M
          7.2.4 C-RAN and D-RAN powering scenario
               7.2.4.1 Networking diagram of powering scenario
          7.2.5 5G power solution for C-RAN and D-RAN site
          7.2.6 Intelligent features for a C-RAN and D-RAN site
               7.2.6.1 Intelligent peak shaving
          7.2.7 Advance sleep/hibernation mode function
     7.3 Intelligent management
          7.3.1 Power availability management
          7.3.2 Site energy efficiency management
          7.3.3 Remote maintenance
          7.3.4 Intelligent security
          7.3.5 Intelligent energy storage system
     7.4 Renewable energy solution for 5G base stations
     7.5 Hybrid architecture scenario, with integration of power and optical networks
8 Energy efficiency
     8.1 Power equipment energy efficiency
     8.2 NE static and dynamic power requirement management and impact on powering
          8.2.1 Low power mode management
          8.2.2 Global efficiency target
          8.2.3 Partial low power mode
9 Dependability, reliability and maintenance
10 Safety
11 Environmental impact
Appendix I  Which power requirement and where for 5G cells
Appendix II  Method of optimization of equipment, power and energy
Appendix III  Example of powering requirement definition  on site and remote powering area
Appendix IV  Example of required output voltage variation under correlation  models between different loads and different cable lengths
Appendix V  Example of digital reconfigurable battery solution for 5G base stations
Bibliography