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C-RAN (集中型無線アクセスネットワーク) 技術の分析

C-RAN Technology Analysis

発行 EJL Wireless Research 商品コード 333729
出版日 ページ情報 英文 79 Pages
納期: 即日から翌営業日
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C-RAN (集中型無線アクセスネットワーク) 技術の分析 C-RAN Technology Analysis
出版日: 2015年06月30日 ページ情報: 英文 79 Pages
概要

当レポートでは、モバイルネットワークのためのC-RAN (集中型無線アクセスネットワーク) 技術について調査し、C-RAN技術の定義・解説、基本的コンセプトおよび構造、バックホール&フロントホールの分析、OEM製品の分析、モバイルオペレーターによるフィールドトライアル、その他ケーススタディなどをまとめています。

エグゼクティブサマリー

主なディスカッションのポイント

第1章 C-RAN (集中型無線アクセスネットワーク) 技術の起源と定義

  • 分散型基地局の導入の経緯
  • ベースバンドプーリングの最初の実質導入
  • C-RANのコンセプト:サマリー
  • China Mobileが考案したC-RANの名称
  • C-RANのメリット
  • サマリー

第2章 C-RANの基本的コンセプト・構造

  • イントロダクション
  • BBU (Baseband Unit) プールl
  • RRH交換による集中型BBUプール
  • ベースバンド処理サーバーまたはデータユニット (DU)
  • クラウドRANのコンセプト
  • フロントホールソリューションとクロック/位相同期

第3章 C-RANアーキテクチャの発展

  • C-RANに関心を持つモバイルサービスプロバイダー
  • C-RANをサポートするOEM機器ベンダー
  • C-RANに関連する課題
  • C-RANとDAS
  • C-RANフロントホール帯域要件
  • 総論

第4章 C-RANのコンセプトの進化

  • 新しいRRH・BPUパーティションポイント
  • ベースバンドサーバー実装のための汎用プロセッサー
  • C-RANフロントホールのための高速光ファイバーイーサネットの利用
  • CWDM・DWDMとフロントホールのデイジーチェーン
  • 検証・総論

第5章 総論・提言

  • 拡大傾向の需要に見合うネットワークの進化
  • 将来に対応したアーキテクチャ
  • 経済的メリット
  • クラウドRAN・仮想RANのフィージビリティ

サマリー

付録:用語

図表

目次
Product Code: GCRANTMA-S-2015

This report provides a comprehensive technology analysis on centralized radio access network (C-RAN) architecture for mobile networks. A detailed analysis covering the implementations and evolution of the radio access network is included along with case studies from mobile operators.

Features

  • Definitions and explanations of D-RAN. C-RAN, Cloud Ran, Virtual RAN, BBU Pool
  • Partition Point Analysis for BBU-RRH link
  • Coordinated Multipoint (CoMP) Analysis
  • Backhaul Analysis for C-RAN
  • Fronthaul Analysis for C-RAN
  • OEM Product Analysis
  • Mobile Operator Field Trials
  • Total Pages: 80
  • Total Tables: 6
  • Total Exhibits: 54

Table of Contents

EXECUTIVE SUMMARY.

KEY DISCUSSION POINTS

CHAPTER 1: ORIGINS AND DEFINITION OF C-RAN

  • History of Distributed Base Station Deployment
  • The First Real Deployment of Baseband Pooling
  • Summary of C-RAN Concept
  • C-RAN Name Invention from China Mobile
  • C-RAN Benefit Claims
  • Summary:

CHAPTER 2: THE BASIC CONCEPT AND STRUCTURE OF C-RAN

  • Introduction
  • Baseband Unit (BBU) Pool
  • Centralized BBU Pool with RRH Switching
  • Baseband Processing Server or Data Unit (DU)
  • The Concept of Cloud RAN
  • Fronthaul Solutions and Clock/Phase Synchronization.

CHAPTER 3: C-RAN ARCHITECTURE DEVELOPMENT

  • Mobile Service Providers Who Are Interested in C-RAN
  • OEM Equipment Vendors Supporting C-RAN
  • The Challenges Associated with C-RAN and its Claims
  • C-RAN and DAS
  • C-RAN Fronthaul Bandwidth Requirements.
  • Conclusions:

CHAPTER 4: C-RAN CONCEPT EVOLUTION

  • New RRH and BPU Partition Point
  • Generic Processor for Baseband Server Implementation
  • Use of High Speed Fiber Based Ethernet for C-RAN Fronthaul
  • Coarse and Dense WDM and Daisy-Chaining for Fronthaul
  • Experiments and Conclusions

CHAPTER 5: CONCLUSION AND RECOMMENDATION

  • Network Evolution to Meet Growing Demand
  • Future Proof Architecture
  • Economical Benefits
  • Feasibility of Cloud RAN and Virtual RAN

SUMMARY

APPENDIX A: ABBREVIATIONS

TABLES

  • Table 1: Comparison of Compression Technologies
  • Table 2: Required CPRI LTE BW per Radio Head (RH) to match ≤ 6.144 Gbit/s
  • Table 3: CPRI Data Rate Requirement per Site
  • Table 4: Summery of CPRI Data Rate without Overhead
  • Table 5: Summery of CPRI Data Rate Including All Overhead
  • Table 6: C-RAN Transport Network Comparison

EXHIBITS

  • Exhibit 1: Diagram of Distributed Base Station Architecture
  • Exhibit 2: OBSAI Base Station Reference Architecture Diagram
  • Exhibit 3: Radio Access Network Architecture of Mid-Tex Cellular
  • Exhibit 4: Remote Radio Cells and BBU Host Site
  • Exhibit 5: C-RAN Concept from China Mobile
  • Exhibit 6: Explanation of Downlink CoMP Operation
  • Exhibit 7: Diagram of Baseband Unit Pool
  • Exhibit 8: BBU Pool with Traffic Load Balancing Capability
  • Exhibit 9: Inter-Cluster Neighbor Cell Information Exchange for CoMP
  • Exhibit 10: Centralized Baseband Server
  • Exhibit 11: 2 Architectures of C-RAN Proposed by China Mobile
  • Exhibit 12: NGMN's View of C-RAN
  • Exhibit 13: Huawei's C-RAN High Level Architecture
  • Exhibit 14: Evolved to Hyper Cell and Virtual RAN.
  • Exhibit 15: Huawei's Cloud RAN Prototype with General Purpose Processor
  • Exhibit 16: Cloud RAN Concept from ZTE
  • Exhibit 17: CWDM Based Fiber Fronthaul Configuration
  • Exhibit 18: Uni-PON Transport Network Diagram
  • Exhibit 19: C-RAN Deployed Scenarios with Existing Macro Cell Site
  • Exhibit 20: Indoor Coverage Based on an Innovative Architecture
  • Exhibit 21: SK Telecom C-RAN Solution
  • Exhibit 22: Current Network Architecture of SK Telecom
  • Exhibit 23: SK Telecom Near Term and Long Term Network Plan
  • Exhibit 24: NTT DoCoMo Current and Advanced C-RAN Architecture.
  • Exhibit 25: Alcatel-Lucent's Radio Access Network and C-RAN Illustration
  • Exhibit 26: RRH, BBU, and the CPRI interface
  • Exhibit 27: Alcatel-Lucent CPRI Fronthaul: Typical Configuration.
  • Exhibit 28: Ericsson's View on C-RAN
  • Exhibit 29: Ericsson's C-RAN Prototype with CoMP for China Mobile Trial in Qingdao
  • Exhibit 30: Intel Test and Verification Platform
  • Exhibit 31: Nokia Liquid Radio Product Concept
  • Exhibit 32: ZTE C-RAN Deployment.
  • Exhibit 33: Economical Analysis - Example of Super BBU Pool Construction.
  • Exhibit 34: Saving on Single Base Station Construction Time.
  • Exhibit 35: ZTE WDM/OTN Solution.
  • Exhibit 36: Active DAS with Fiber and Coaxial Cable Distribution Network
  • Exhibit 37: Block Diagram of CommScope Active DAS over Fiber
  • Exhibit 38: Ericsson Radio Dot System
  • Exhibit 39: Ericsson Radio Dot RBS Diagram
  • Exhibit 40: Simulation Results for the Gain of CoMP
  • Exhibit 41: Cell-edge CoMP Gain with Different Cells
  • Exhibit 42: Capacity Gain Obtained by Each Resource Allocation Method
  • Exhibit 43: Network Topology of C-RAN and Distributed RAN.
  • Exhibit 44: China Mobile CoMP Field Trial Results, UL Throughput
  • Exhibit 45: China Mobile CoMP Field Trial Results, UL CoMP Gain
  • Exhibit 46: Architecture of a Traditional Radio Access Network
  • Exhibit 47: An example of L2/L3 virtualization architecture for C-RAN virtualization
  • Exhibit 48: C-RAN Implementation Scenarios
  • Exhibit 49: Possible Fronthauling Interfaces from DU to RU
  • Exhibit 50: GPP-based C-RAN large-scale PoC platform
  • Exhibit 51: CWDM Fiber Ring Solution
  • Exhibit 52: Power Consumption of Base Station
  • Exhibit 53: CAPEX and OPEX Analysis of a Macro Cell Site
  • Exhibit 54: CAPEX and OPEX Saving with Centralized RAN
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