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研究生:林怡君
研究生(外文):I-Chun Lin
論文名稱:在RAN實施網路切片的排程框架
論文名稱(外文):A Scheduling Framework for Enforcing Network Slicing on RAN
指導教授:鄭瑞光鄭瑞光引用關係
指導教授(外文):Ray-Guang Cheng
口試委員:許獻聰黃琴雅王瑞堂
口試委員(外文):Shiann-tsong SheuChin-Ya HuangRuei-Tang Wang
口試日期:2019-07-31
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:電子工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2019
畢業學年度:107
語文別:英文
論文頁數:57
中文關鍵詞:LTEMAC 排程器網路切片
外文關鍵詞:LTEMAC schedulernetwork slicing
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在現有OAI平台上,將排程器切分成pre-processor以及final scheduler兩塊模組,pre-processor提供讓使用者可自行決定的排程演算法,再由final scheduler將排程結果對應到實體層以完成傳輸。但由於目前OAI的scheduler在實現過程中並未留下文件,程式碼也還有許多錯誤。要將目前的排程器擴充成支援不同的協定切片技術仍有困難。因此本論文將先基於OAI開源平台,分析目前OAI排程器的架構,再明確地將pre-processor與scheduler兩模組之間的介面定義清楚,確認交換的資料內容與格式。根據切片所需要達成的軟硬體及動態資源分配的功能與目標,定義出可支援網路切片的完整介面,讓一個基地台可以支援不同服務功能切片進行優化。
On the existing OAI platform, the scheduler is divided into two modules: pre-processor and final scheduler. The pre-processor provides a scheduling algorithm that allows the user to determine the scheduling algorithm, and then the final scheduler maps the scheduling results to the physical layer to complete the transmission. Since the current OAI scheduler does not leave files in the implementation process, there are still many errors in the code. It is still difficult to expand the current scheduler to support network slicing techniques. Therefore, this paper will first analyze the architecture of the current OAI scheduler based on the OAI open-source platform, and then clearly define the interface between the pre-processor and the scheduler modules, and confirm the exchanged data content and format. According to the functions and objectives of software and hardware and dynamic resource allocation that need to be sliced, a complete interface that supports network slicing is defined, so that one base station can support different service function slices for optimization.
論文摘要 I
Abstract II
Table of Contents IV
List of Figures VI
List of Tables VII
1.Introduction
1.1. Background
1.1.1. Open source platform “OpenAirInterface (OAI)”
1.1.2. Network slicing background knowledge
1.1.3. LTE scheduler
1.2. Objectives
2. System Model
2.1. The purpose of Inter-slice scheduler
2.2. The purpose of Intra-slice scheduler
2.3. The purpose of Final scheduler
3. How to implement in OAI
4. The prototype of inter-slice, intra-slice and final scheduler
4.1. Inter-slice scheduler
4.1.1. I/O for Inter-slice scheduler
4.1.2. Pseudo code for inter-slice scheduler
4.1.3. Example for inter-slice scheduler
4.2. Intra-slice scheduler
4.2.1. I/O for Intra-slice scheduler
4.2.2. Pseudo code for intra-slice scheduler
4.2.3. Example for inter-slice scheduler
4.3. Final scheduler
4.3.1 I/O for final scheduler
4.3.2 Pseudo code for final scheduler
5. Testing
5.1. Testing Environment
5.2. Testing tutorial
5.2.1. EPC
5.2.2. eNB
5.3. Testing Result
6. Conclusion
References
[1] Ericsson. (2017, Jan) “Evolving LTE to fit the 5G future,” [Online]. Available: https://www.ericsson.com/en/ericsson-technology-review/archive/2017/evolving-lte-to-fit-the-5g-future
[2] N. Nikaein, M. K. Marina, S. Manickam, A. Dawson, R. Knopp, and C. Bonnet, “Openairinterface: A flexible platform for 5g research,” ACM SIGCOMM Computer Communication Review, vol. 44, no. 5, pp. 33–38, 2014.
[3] R. Knopp, “OAI MAC/PHY interface description and scheduling architecture,” EURECOM Technical Document, Oct. 2017.
[4] 3GPP TS 36.321, “Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification.” V10.10.0, July 2014.
[5] 3GPP TS 36.213, “Evolved Universal Terrestrial Radio Access (E-UTRA): Physical layer procedures,” V10.13.0, July 2015.
[6] Kokku, R., et al., "NVS: A Substrate for Virtualizing Wireless Resources in Cellular Networks." in IEEE/ACM Transactions on Networking, vol. 20, no.5, Oct. 2012, pp 1333-1346
[7] Alliance, N. J. N. g. m. n., white paper (2015). "5G white paper."
[8] Ordonez-Lucena, J., et al., "Network Slicing for 5G with SDN/NFV: Concepts, Architectures, and Challenges," in IEEE Communications Magazine, vol. 55, no. 5, May 2017, pp. 80-87.
[9] 3GPP TS 23.251 “Network Sharing: Architecture and functional description,” V14.0.0, March. 2017
[10] Ksentini, A. and N. Nikaein, " Toward Enforcing Network Slicing on RAN: Flexibility and Resources Abstraction," in IEEE Communications Magazine, vol. 55, no. 6, June 2017, pp. 102-108.
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