© ETRI, 2005 www.etri.re.kr 1 WiBro 접속 및 핸드오버 이동통신연구단한국전자통신연구원 2005. 04. 12 장 성 철장 성 철장 성 철장 성 철 ICAT’05.

Slides:



Advertisements
Similar presentations
New NS-2 model developed for the IEEE specifications is now publicly available. This model was developed as part of the Seamless and Secure Mobility.
Advertisements

1 IEEE Wireless MAN (Wireless Metropolitan Network) A Technical Overview of the WirelessMAN TM Air Interface for Broadband Wireless Access, Carl.
Transmission of IP Packets over Ethernet over IEEE draft-riegel-16ng-ip-over-eth-over Max Riegel
Dynamic Tunnel Management Protocol for IPv4 Traversal of IPv6 Mobile Network Jaehoon Jeong Protocol Engineering Center, ETRI
By, Shah Ankur Vasant. WIMAX stands for Worldwide Interoperability for Microwave Access The original IEEE standard (now called "Fixed WiMAX") was.
WMAN, part 2 S Wireless Personal, Local, Metropolitan, and Wide Area Networks1 Contents IEEE family of standards Protocol layering TDD frame.
IP Convergence Layer for HIPERLAN/2 Workshop IP in Telekommunikationsnetzen 25./26. Januar 2001, Bremen Servane Bonjour, France Telecom Philippe Bertin,
Overview of IEEE and MAC Layer September 25, 2009 SungHoon Seo
Prepared by Ali Al-Ghamdi Eissa Al-Mazmoumi. OUTLINE Overview – WiMAX Benefits. – Frequency Bands. – WiMAX Network Topologies. Physical Layer – Modulation.
802.16/WiMAX EECS 228a, Spring 2006 Shyam Parekh.
Quality of Service Scheduling for Broadband Wireless Access Systems Sih-Han Chen Department of Computer Science and Information Engineering National.
The uplink subframe may also contain contention-based allocations for - initial system access and - broadcast or multicast bandwidth requests. The access.
System Architecture and Cross-Layer Optimization of Video Broadcast over WiMAX CMPT 820 Bob McAuliffe July 24, 2008.
WMAN, part 1 S Wireless Personal, Local, Metropolitan, and Wide Area Networks1 Contents IEEE family of standards Protocol layering TDD frame.
Glenn Research Center at Lewis Field 1 NEONet 2006 Investigating for Aeronautical Use Steven Bretmersky Cleveland State University March 1, 2006.
IEEE e/Mobile WiMAX Moise Effo.
WiMAX 簡介 Ming-Tsung Huang Fu Jen Catholic University Computer Science.
1 IEEE Wireless MAN "Air Interface for Fixed Broadband Wireless Access Systems"
Wireless Networks Instructor: Fatima Naseem Computer Engineering Department, University of Engineering and Technology, Taxila.
1. WiMAX_NWG_Stage2 & Stage3. WiMAX Forum The WiMAX Forum is a nonprofit organization formed in 2001 to enhance the compatibility and interoperability.
به نام خدا An Overview of Next Generation of Mobile WiMAX Technology (802.16m).:. Class seminar.:. Lecturer: Mohammad Aliasgari Custom Implementation of.
A Study of the Bandwidth Management Architecture over IEEE WiMAX Student :Sih-Han Chen Advisor : Ho-Ting Wu Date :
IEEE WirelessMAN For Broadband Wireless Metropolitan Area Networks.
WiMAX: IEEE Wireless MANs. Sridhar IyerIIT Bombay2 Wireless networks  Wireless PANs (Bluetooth – IEEE ) –very low range –wireless connection.
PDU Handling in IEEE m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/924 Date Submitted: Source:
Performance Analysis of an innovative scheduling algorithm for OFDMA based IEEE a systems E. Baccarelli, M.Biagi, C.Pelizzoni, N.Cordeschi This work.
David Lynn Presents… HANDOVER IN MOBILE WIMAX NETWORKS: THE STATE OF ART AND RESEARCH ISSUES Sayan Kumar Ray Krzysztof Pawlikowski Harsha Sirisena.
Wireless LAN Overview Sunggeun Jin Outline  IEEE MAC  IEEE MAC.
ARQ support for Primary Management connection IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16maint-08/140 Date Submitted:
Copyright 2005 WiMAX Forum “WiMAX Forum™” and "WiMAX Forum CERTIFIED™“ are registered trademarks of the WiMAX Forum™. * All trademarks are the properties.
Information Technology Laboratory, Advance Network Technologies Division Overview of NIST IEEE implementation in NS-2 High Speed Network Technology.
1 IEEE MEDIA INDEPENDENT HANDOVER DCN: srho Title: Consideration for Tunneling of Network Entry Procedure (IEEE ) Date Submitted:
Case Study: WiBro MAC 미래기술연구소. 1 목차  PART I : Basic Topics Introduction to MAC Convergence sublayer MAC PDU Ranging MAP  PART II: Advanced Topics.
NS-2 NIST add-on IEEE model (MAC+PHY) Miray Kas 28 Jan 2008.
1 WiMax Wireless and Mobile Communications Systems.
Wireless and Mobility The term wireless is normally used to refer to any type of electrical or electronic operation which is accomplished without the use.
輔大資工所 在職研一 報告人:林煥銘 學號: Public Access Mobility LAN: Extending The Wireless Internet into The LAN Environment Jun Li, Stephen B. Weinstein, Junbiao.
Jenhui Chen, Chih-Chieh Wang and Jiann-Der Lee International Conference on Wireless Broadband and Ultra Wideband Communications, 2007 AusWireless, 2007.
A seamless handover between cdma2000 and WLAN for 3G-WLAN interworking service continuity 指導教授:黃培壝 學生:陳鵬宇.
Wireless Metropolitan Area Networks (WMANs) using WiMAX.
Chapter 6 Medium Access Control Protocols and Local Area Networks Wireless LAN.
Chapter 14 무선 LAN (Wireless LAN).
Relationship to IEEE & WiMAX Max Riegel
Doc.: IEEE /032 Submission March 2000 Jamshid Khun-Jush, Ericsson HiperLAN type 2: A System with QoS Support Jamshid Khun-Jush Chairman ETSI Project.
Long Term Evolution Protocols
Bluetooth.
Ben-Gurion University of the Negev Department of Communication Systems Engineering.
By Suman(1RV12LDC29).  Long Term Evolution (LTE) promises higher data rates, 100Mbps in the downlink and 50Mbps in the uplink in LTE’s first phase, and.
IEEE Wireless LAN Standard
Network Security Laboratory Graduate School of Soongsil University Graduate School of Soongsil University Network Security Laboratory Graduate School of.
1 Wireless Networks Lecture 21 WCDMA (Part I) Dr. Ghalib A. Shah.
Supervisors:Dr. Yehuda Ben-Shimol Mr. Itzik Kitroser Alon Tzulang &Tseela Matsry Present:
Analysis of Three Dimensional Scheduling Algorithms in Multi-Hop OFDMA Networks Ben-Gurion University of the Negev Department of Communication Systems.
1 Wireless Networks Lecture 43 IEEE MAC/QoS Dr. Ghalib A. Shah.
IPv4 over IP CS Soohong Daniel Park Syam Madanapalli.
Doc.: IEEE /0092r0 Submission November 2005 Ramon Khalona/Nextwave Broadband, Inc.Slide 1 Nextwave Broadband WRAN Proposal IEEE P Wireless.
Network Infra. Lab. 11 th July, 2006 Sang-Eon Kim * Eun Kyoung Paik Jong Sam Jin The 66th IETF Meeting.
Broadband Access Networks and Services Chapter 7 IEEE Standard Byeong Gi Lee Seoul National University EE Spring 2004.
Wireless Networks Spring 2007 WiMAX: Broadband Wireless Access.
IEEE Network Simulation
WiMAX for Broadband Wireless Access
WiBro Service and Standardization Status (Based on IEEE 802
Interworking Architecture for WLANs, WMANs and 3G Cellular Networks
Mobility Management for IEEE m
From IEEE Communications Magazine, June 2002 Presented by Hermes Liu
BLUETOOTH (I) Bluetooth technology aims at so-called ad hoc piconets, which are local area networks with a very limited coverage and without the need for.
Overview and Coexistence Aspects
Chapter 6 Medium Access Control Protocols and Local Area Networks
WiMAX: Broadband Wireless Access
Wireless Mesh Networks
Presentation transcript:

© ETRI, WiBro 접속 및 핸드오버 이동통신연구단한국전자통신연구원 장 성 철장 성 철장 성 철장 성 철 ICAT’05

© ETRI, I II III IV V WiBro 접속 절차 WiBro MAC VI BS Diversity WiBro 핸드오버 발표 목차

© ETRI, IEEE 규격

© ETRI, REFERENCE MODEL ▣ Convergence Sublayer (CS) ◈ Classifying SDUs to CID. DL(BS) and UL(SS) ◈ Payload header suppression. ▣ MAC CPS ◈ Bandwidth allocation ◈ Connection establishment ◈ Connection maintenance ◈ Quality of Service (QoS) ◈ Scheduling of data over the PHY. ▣ Privacy Sublayer ◈ Providing authentication ◈ Secure key exchange ◈ Encryption. Service Specific Convergence Sublayer (CS) MAC Common Part Sublayer (MAC CPS) Privacy Sublayer Physical Layer (PHY) PHY SAP MAC SAP CS SAP MAC PHY

© ETRI, FUNCTIONAL MODEL Data packets MAC Header RF control MAC PDU PHY Radio Link Handler Encryption / Decryption Tx/Rx control Convergence Sublayer (CS) Scheduler ARQ PDU builder Packing & Fragment MAC Message Handler Scheduler ARQ Packing & Fragment PDU Parser CRC generate / CRC check Priority Queues Holding Queues MAC Message Handler

© ETRI, NORMAL MAP ▣ DL-MAP & UL-MAP ◈ Management Messages (GMH and CRC) ◈ DL-MAP IEs and UL-MAP IEs ◈ Burst Profile 방식 (DIUC and UIUC)

© ETRI, PACKET CLASSIFICATION

© ETRI, PAYLOADs ▣ Fragmentation and Packing ◈ Subheaders : Fragmentation subheader / Packing subheader ◈ MAC SDU and MAC management message  MAC PDU

© ETRI, I II III IV V WiBro 접속 절차 WiBro MAC VI BS Diversity WiBro 핸드오버 발표 목차

© ETRI, WiBro SYSTEM (ETRI) – 구성도 및 주요 특징 HA HPi-AP HPi-AT ( 단말 ) HPi-AT Mobile IP PAR ( 엑세스라우터 ) AAA NMS(O&M) Public IP Network HPi-AP ( 기지국 ) PAR HPi-AT ISP’s IP Network AT : Access terminal AP : Access Point PAR : Packet Access RouterHA : Home Agent PAR : Packet Access Router HA : Home Agent AAA : Authentication, Authorization, Accounting NMS : Network Management System 분류특성 사용 주파수 대역 2.3 ~ 2.4 GHz 2.3 ~ 2.4 GHz (100 MHz 대역폭 ) (100 MHz 대역폭 ) 서비스 종류 실시간 ( 예 : 동영상 ) 실시간 ( 예 : 동영상 ) 비실시간 ( 예 : 파일전송 ) 비실시간 ( 예 : 파일전송 ) 최선형 ( 예 : 웹 브라우징 ) 최선형 ( 예 : 웹 브라우징 ) 기반 프로토콜 IP (Internet Protocol) IP (Internet Protocol) 사용자전송속도 최대 3 Mbps 이상 최대 3 Mbps 이상 기지국전송속도 30Mbps / FA (10MHz) 30Mbps / FA (10MHz) ( 기본형 ) ( 기본형 ) 50Mbps / FA (10MHz) 50Mbps / FA (10MHz) ( 고속형 ) ( 고속형 ) 이동속도 <= 60 [Km/h] <= 60 [Km/h] 셀 크기 ~1Km ~1Km

© ETRI, WiBro SYSTEM (ETRI) – 단말기 / 기지국 / 엑세스라우터 기지국 제어 보드 기지국 모뎀 보드 기지국 (AP) 단말 (AT) 단말 제어 보드 엑세스라우터 (PAR) PAR HA AAA 라우터 웹서버 단말 모뎀 보드 무선 접속 사용자 인터페이스   PCMCIA/USB 무선 접속 제어 무선 패킷 전송 제어 무선 자원 관리 인터넷 접속 제어 IP 패킷 전송 제어 IP 이동성 제어 RF 제어 보 드

© ETRI, 접속 절차 개요 ▣셀 방송정보 (UCD/DCD) ▣초기 무선 접속 (Initial RNG) ▣ AT 기본협상 ▣장치 및 사용자 인증 ▣셀 등록 ▣ IP 연결 (MIP) ▣서비스 흐름 추가 / 변경 / 종료 ▣등록 해제

© ETRI, 접속 절차 개요 ▣셀 방송정보 ◈ UCD/DCD ◈ UL-MAP/DL-MAP ▣초기 무선 접속 ◈ CDMA Ranging ◈ Initial Ranging ▣ AT 기본 기능협상 ▣장치 및 사용자 인증 ◈ EAP 지원 ▣셀 등록 ▣ IP 연결 ◈ Mobile IP

© ETRI, 트래픽 접속 및 접속 해제 절차 ▣서비스 흐름 추가 ◈무선 트래픽 추가 ◈ MAC: DSA-XXX ◈ ANAP: DSAxxx ▣서비스 흐름 변경 ◈무선 트래픽 변경 ◈ MAC: DSC-XXX ◈ ANAP: DSCxxx ▣서비스 흐름 삭제 ◈무선 트래픽 삭제 ◈ MAC: DSD-XXX ◈ ANAP: DSDxxx ▣ AT 접속 해제 ◈ DREG-CMD

© ETRI, I II III IV V WiBro 접속 절차 WiBro MAC VI BS Diversity WiBro 핸드오버 발표 목차

© ETRI, SCAN AND HO INITIATION ▣ MSS-initiated HO ▣ BS-initiated HO

© ETRI, HO PROCEDURES ▣ Inter-Sector (MSS initiated) ▣ Inter-BS (MSS initiated)

© ETRI, NBR-ADV AND CELL RESELECTION ▣방송정보 주기 Trade-off ◈ ◈ Acquisition time ◈ ◈ Broadcast data overhead

© ETRI, HO PROCESS OPTIMIZATION ▣ Network Re-entry Procedure ◈ ◈ NBR-ADV : 인접셀 능력 ◈ ◈ HO-RSP : 망이 추천한 셀 능력 ◈ ◈ RNG-RSP : HO 하는 셀 능력

© ETRI, I II III IV V WiBro 접속 절차 WiBro MAC VI BS Diversity WiBro 핸드오버 발표 목차

© ETRI, BS DIVERSITY ▣ Fast BS Switching ◈ Hard Handover. ◈ Selection Time Reduction of A Anchor BS Between Active BSs. Increase Link Quality ▣ Soft Handover (WiBro 에는 채택안함. IEEE 에만 있음 ) ◈ DL combining diversity Two or more BSs transmitting the same MAC/PHY PDUs to the MSS at the same time interval ◈ UL Selection diversity Two or more BSs receiving (demodulating, decoding) from the MSS at the same time interval ▣ Definitions ◈ Anchor BS : serving BS ◈ Active BSs : BSs that hav may allocated resources to the MSS ◈ Active Set: a list of serving active BSs

© ETRI, FAST BS SWITCHING ▣ Fast Anchor BS Selection Feedback Channel 사용 ◈ CQICH 내 8 개 code word 를 사용하여 셀을 선택. BS 2 BS 1 BS 2 BS 1

© ETRI, SOFT HANDOVER ▣ DL Diversity ◈ Traffic Burst 구간에서 BS1 과 BS2 는 동일한 subcarrier permutation 을 사 용하여 동일 데이터 전송. ◈ BS1 MAP + Traffic Burst (BS1 and BS2) ▣ UL Diversity ◈ BS 에서 Traffic Burst Selection ◈ UL Resource 할당시 고려사항 BW request code HO 사용 못함. UL 은 Polling 방식이 가능. BS 2 BS 1 MAP MAP Data Data

© ETRI, 감사합니다 ! ▣질문 & 응답 시간