5G Network Architecture: New Radio and Core Network Evolution - Advanced Mobile Communications Micro Specialization
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5G Network Architecture: New Radio and Core Network Evolution

5G Network Architecture: New Radio and Core Network Evolution

The module outlines the architectural principles of the 5G mobile network, focusing on two deployment strategies: Non-Standalone (NSA) and Standalone (SA). It emphasizes the role of the Service Data Adaptation Protocol (SDAP) in Quality of Service (QoS) management, along with the evolution towards Centralized RAN (C-RAN) and Open RAN (O-RAN). The chapter culminates in a discussion of the Service-Based Architecture (SBA) in the 5G Core Network, showcasing its flexibility through RESTful APIs.

64 sections

Sections

Navigate through the learning materials and practice exercises.

  1. 1
    New Radio (Nr): Deployment Modes
    Learn Practice

    This section discusses the two primary deployment modes for 5G New Radio:...

  2. 1.1
    Non-Standalone (Nsa) Mode: Leveraging Existing Lte Infrastructure (Option 3x Focus)
    Learn Practice

    Non-Standalone (NSA) Mode utilizes existing LTE infrastructure to enable...

  3. 1.1.1
    Fundamental Concept And Rationale
    Learn Practice

    This section delves into the foundational concepts and rationales behind the...

  4. 1.1.2
    Detailed Mechanism (E-Utra-Nr Dual Connectivity - En-Dc / Option 3x)
    Learn Practice

    This section provides a comprehensive overview of the E-UTRA-NR Dual...

  5. 1.1.3
    Strategic Advantages Of Nsa
    Learn Practice

    The NSA (Non-Standalone) mode in 5G enables faster deployment and utilizes...

  6. 1.1.4
    Inherent Limitations Of Nsa
    Learn Practice

    The Non-Standalone (NSA) deployment of 5G leverages existing 4G LTE...

  7. 1.2
    Standalone (Sa) Mode: Pure 5g Architecture
    Learn Practice

    Standalone (SA) mode represents the complete and independent architecture of...

  8. 1.2.1
    Fundamental Concept And Rationale
    Learn Practice

    This section outlines the two primary deployment strategies for 5G New...

  9. 1.2.2
    Detailed Mechanism
    Learn Practice

    This section explores the detailed mechanisms of 5G network architecture,...

  10. 1.2.3
    Strategic Advantages Of Sa
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    Standalone (SA) mode represents the complete realization of 5G capabilities,...

  11. 1.2.4
    Challenges Of Sa
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    This section outlines the significant challenges associated with the...

  12. 2
    Service Data Adaptation Protocol (Sdap)
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    The Service Data Adaptation Protocol (SDAP) is a crucial part of the 5G New...

  13. 2.1
    Role In Quality Of Service (Qos) Handling
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    This section emphasizes the importance of the Service Data Adaptation...

  14. 2.1.1
    Mapping Ip Packets To Qos Flows
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    This section covers the crucial role of the Service Data Adaptation Protocol...

  15. 2.1.2
    Qos Flow Identifiers (Qfis)
    Learn Practice

    QoS Flow Identifiers (QFIs) serve as unique tags that allow the 5G network...

  16. 2.1.3
    Enabling Differentiated Service
    Learn Practice

    This section discusses the Service Data Adaptation Protocol (SDAP) in 5G,...

  17. 2.2
    Role In Traffic Mapping And Reflective Qos
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    This section discusses the Service Data Adaptation Protocol (SDAP) in 5G...

  18. 2.2.1
    Mapping Qos Flows To Data Radio Bearers (Drbs)
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    This section discusses the critical role of the Service Data Adaptation...

  19. 2.2.2
    Reflective Qos
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    Reflective QoS simplifies end-to-end Quality of Service by allowing uplink...

  20. 2.2.3
    Streamlining Qos Enforcement
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    The section discusses the essential role of the Service Data Adaptation...

  21. 3
    Centralized Ran (C-Ran)
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    Centralized RAN (C-RAN) transforms traditional radio access networks by...

  22. 3.1
    Concepts Of Disaggregation And Centralization
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    This section explains the concepts of disaggregation and centralization...

  23. 3.1.1
    Traditional Distributed Ran
    Learn Practice

    This section explores the traditional architecture of Radio Access Networks...

  24. 3.1.2
    C-Ran Architecture
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    C-RAN architecture centralizes Baseband Unit (BBU) functionality, improving...

  25. 3.1.3
    Functional Splits (C-Ran Context)
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    This section delves into the concept of Centralized RAN (C-RAN) and its...

  26. 3.2
    Advantages For Resource Pooling And Efficiency
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    This section discusses the benefits of Centralized RAN (C-RAN) and Open RAN...

  27. 3.2.1
    Dynamic Resource Pooling And Load Balancing
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    This section discusses Dynamic Resource Pooling and Load Balancing within...

  28. 3.2.2
    Reduced Capital Expenditure (Capex)
    Learn Practice

    This section discusses the significance of deploying 5G networks using two...

  29. 3.2.3
    Reduced Operational Expenditure (Opex)
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    This section discusses the reduced operational expenditure (OpEx) associated...

  30. 3.2.4
    Improved Performance And Advanced Coordinated Features
    Learn Practice

    This section explores the enhanced performance and coordination capabilities...

  31. 3.2.5
    Scalability
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    Scalability in 5G networks refers to the ability of network architectures,...

  32. 4
    Open Ran (O-Ran)
    Learn Practice

    Open RAN enhances flexibility in telecommunications by utilizing open,...

  33. 4.1
    Principles Of Disaggregation And Open Interfaces
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    This section examines the principles of disaggregation and open interfaces...

  34. 4.1.1
    Further Disaggregation
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    This section outlines the concepts of disaggregation and centralization in...

  35. 4.1.2
    Open And Standardized Interfaces
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    This section discusses Open RAN (O-RAN) and its principles of standardized,...

  36. 4.1.3
    Virtualization And Cloud-Native Principles
    Learn Practice

    This section explores virtualization and cloud-native principles essential...

  37. 4.1.4
    Intelligence And Automation (Ran Intelligent Controllers - Rics)
    Learn Practice

    This section explores the role of RAN Intelligent Controllers (RICs) in the...

  38. 4.2
    Compelling Benefits Of Open Ran
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    Open RAN transforms the Radio Access Network by promoting disaggregation and...

  39. 4.2.1
    Breaking Vendor Lock-In And Fostering Competition
    Learn Practice

    This section explores how Open RAN (O-RAN) promotes competition among...

  40. 4.2.2
    Accelerated Innovation
    Learn Practice

    This section explores the evolution and transformative aspects of 5G network...

  41. 4.2.3
    Increased Flexibility And Customization
    Learn Practice

    This section discusses increased flexibility and customization in the 5G...

  42. 4.2.4
    Enhanced Automation And Operational Efficiency
    Learn Practice

    This section discusses enhanced automation and operational efficiency within...

  43. 4.2.5
    New Service Monetization
    Learn Practice

    This section discusses the role of Open RAN (O-RAN) in enabling new service...

  44. 4.2.6
    Future-Proofing
    Learn Practice

    Future-proofing involves adopting strategies and technologies to ensure...

  45. 4.3
    Inherent Challenges Of Open Ran
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    This section discusses the inherent challenges faced by Open RAN (O-RAN) as...

  46. 4.3.1
    Integration Complexity
    Learn Practice

    Integration complexity in Open RAN (O-RAN) arises from the challenges of...

  47. 4.3.2
    Performance Optimization And Benchmarking
    Learn Practice

    This section covers the intricacies of performance optimization and...

  48. 4.3.3
    Security Vulnerabilities
    Learn Practice

    This section discusses potential security vulnerabilities associated with...

  49. 4.3.4
    Maturity Of Ecosystem
    Learn Practice

    This section explores the evolvement and current state of the ecosystem in...

  50. 4.3.5
    Operational Complexity And Skillset Gap
    Learn Practice

    This section discusses the challenges of operational complexity and the...

  51. 4.3.6
    Fronthaul Requirements
    Learn Practice

    This section discusses the fronthaul requirements in 5G architecture,...

  52. 4.3.7
    Total Cost Of Ownership (Tco) In Early Stages
    Learn Practice

    The TCO in early stages for Open RAN (O-RAN) focuses on the financial...

  53. 5
    Restful Api For Service-Based Interface
    Learn Practice

    The 5G Core Network adopts a Service-Based Architecture powered by RESTful...

  54. 5.1
    Enabling Flexible And Programmable Network Services
    Learn Practice

    This section discusses the enabling of flexible and programmable network...

  55. 5.1.1
    Service-Based Architecture (Sba) In Depth
    Learn Practice

    This section explores the Service-Based Architecture (SBA) of the 5G Core...

  56. 5.1.2
    Restful Apis As The Communication Backbone
    Learn Practice

    This section highlights the significance of RESTful APIs in enabling...

  57. 5.1.3
    Profound Benefits Of Restful Api For Sba
    Learn Practice

    RESTful APIs enhance the flexibility, programmability, and modularity of the...

  58. 5.1.3.1
    Unprecedented Modularity And Decoupling
    Learn Practice
  59. 5.1.3.2
    Dynamic Scalability
    Learn Practice

    This section discusses the concepts of dynamic scalability within the 5G...

  60. 5.1.3.3
    Enhanced Flexibility And Agility
    Learn Practice

    This section discusses the evolution and importance of flexibility and...

  61. 5.1.3.4
    Deep Programmability And Automation
    Learn Practice

    This section focuses on the flexibility and programmability of the 5G Core...

  62. 5.1.3.5
    Seamless Vendor Interoperability (True Multi-Vendor Core)
    Learn Practice

    The section emphasizes the significance of RESTful APIs in facilitating...

  63. 5.1.3.6
    Foundational For Network Slicing
    Learn Practice

    This section outlines the foundational technologies and protocols enabling...

  64. 5.1.3.7
    Cloud-Native Design
    Learn Practice

    Cloud-native design in the 5G Core Network emphasizes flexibility,...

What we have learnt

  • 5G New Radio (NR) operates in two deployment modes: Non-Standalone (NSA) and Standalone (SA).
  • The Service Data Adaptation Protocol (SDAP) plays a crucial role in managing varied QoS requirements.
  • Centralized RAN (C-RAN) enhances network efficiency, while Open RAN (O-RAN) fosters interoperability among different vendors.

Key Concepts

-- 5G New Radio (NR)
The air interface designed to meet the diverse requirements of IMT-2020, with two main deployment strategies: Non-Standalone and Standalone.
-- NonStandalone (NSA)
A deployment mode where 5G NR relies on existing 4G LTE infrastructure to provide enhanced speed and coverage.
-- Standalone (SA)
A complete 5G network architecture that operates independently of 4G LTE, enabling full realization of 5G capabilities.
-- Service Data Adaptation Protocol (SDAP)
An essential protocol in 5G NR that maps IP packets to QoS flows, ensuring appropriate QoS treatment for various types of user traffic.
-- Centralized RAN (CRAN)
An architectural approach that centralizes baseband processing from multiple cell sites to improve resource efficiency and performance.
-- Open RAN (ORAN)
An architecture that promotes disaggregation of the RAN into standardized, interoperable components that can be sourced from multiple vendors.
-- ServiceBased Architecture (SBA)
A modular architecture in the 5G Core Network that uses RESTful APIs to enable flexible and scalable interactions between network functions.

Additional Learning Materials

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Study Material

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