5G

TODO:

中关于5G技术内容整理过来


关于5G更多细节,详见:5G技术概述

  • 5G
    • =fifth generation
    • 3GPP组织制定的标准
    • 概述
      • 5g_nr_unified
    • 频段范围
      • FR1=Frequency Range 1
        • 包括 sub-6 GHz
      • FR2=Frequency Range 2
        • 包括了mmWave=mm-wave的24–100GHz
    • 2G到5G频谱对比
      • 2g_to_5g_spectrum_usage
    • 相关技术
      • Massive MIMO
        • 4g_anttena_5g_apaa
    • 架构
      • 总体架构
        • Reference Point Architecture of 5G Core Network
          • 5g_ref_point_arch
        • Service-based Architecture of 5G Core Network
          • 5g_service_based_arch
      • 细节
        • Policy Control Mechanism in 5G Core Network
          • 5g_arch_policy_ctrl
    • 核心元素=核心功能(function)
      • 包含
        • AMF=Access and Mobility Management function
        • SMF=Session Management function
        • UPF=User plane function
        • PCF=Policy Control Function
        • AUSF=Authentication Server Function
        • UDM=Unified Data Management
        • AF=Application Function
        • NEF=Network Exposure function
        • NRF=NF Repository function
        • NSSF=Network Slice Selection Function
      • Classification of 5G Core Networks
        • 5g_cn_function_classification

4G vs 5G

  • 4G和5G技术参数对比
Technology Data Rates Latency Mobility Support Spectrum Efficiency Users Density Energy Efficiency
5G (NR) Avg 100 Mb/s
Peak 20 Gb/s
~ 1 ms >500 Km/h x3 Better
DL- 30 bits/Hz
UL- 15bits/Hz
1000K/Km2 x100 Better
4G (LTE) Avg 25 Mb/s
Peak 300 Mb/s
~10- 50 ms <=350 Km/h DL – 6 bits/Hz
UL- 4 Bits/Hz
~ 2K/Km2 Moderate
  • 4G和5G核心网络功能演化对比
    • Comparison of 4G Core Network and 5G Core Network
      • 4g_vs_5g_core_network
    • Transformation of 4G Core Network Functions to 5G Core Network Functions
      • 4g_vs_5g_cn_function_transform
      • 具体细节
        • Transformation of MME into AMF&UDM
          • 4g_vs_5g_mme_into_amf_udm

5G应用

  • 应用
    • 概览
      • one_figure_view_all_5g_app
      • 5g_essential_of_next_mobile
      • 5g_expand_mobile_to_industry

5G标准版本历史

  • 5G标准版本历史
      • 5g_spec_evolution_history
      • 5g_spec_development
      • THE 3GPP ROADMAP FOR RELEASE 15 AND 16
        • 3gpp_5g_release_15_16
    • 文字
      • 2015年:开始研究
      • 2017年:第一次发布 5G NSA
      • 2018年:3GPP Release 15=5G phase 1
        • eMBB=Enhanced Mobile Broadband
        • URLLC=Ultra-Reliable and Low Latency Communication
      • 2020年6月:3GPP Release 16=5G phase 2
        • mMTC=massive Machine Type Communication
        • V2V=Vehicle to Vehicle
      • 预计2021年:Release 17

运营商支持5G情况

global_mno_support_5g

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