We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byClark Eastwood
Modified over 2 years ago
Broadband IT Korea © ETRI, 2010 Confidential 1 APCC 2010 Impact of Reading System Information in Inbound Handover to LTE Femtocell (Wednesday) ETRI Hyungdeug
Broadband IT Korea © ETRI, 2010 Confidential 2 Overview of Inbound Handover
Broadband IT Korea © ETRI, 2010 Confidential 3 Femtocell Access Mode Open access mode Operate as normal eNB Closed access mode (CSG mode) CSG cell has CSG Id (Closed Subscriber Group Identity) Users belonging to its CSG Id are allowed to connect to CSG Cell Hybrid access mode Limited resources are available to non-member UEs, while the rests are operated in CSG manner
Broadband IT Korea © ETRI, 2010 Confidential 4 Access Control in 3GPP Initial access control at UE & final access control at CN UE needs to measure MIB & SIB1 for access control Frame loss from source cell during SI measurement of target CSG cell
Broadband IT Korea © ETRI, 2010 Confidential 5 SI Frames in LTE MIB and SIB1 MIBs are scheduled with 40msec and repeated with 10msec SIB1 are scheduled with 80msec and repeated with 40msec on even FSN.
Broadband IT Korea © ETRI, 2010 Confidential 6 Simulation Models
Broadband IT Korea © ETRI, 2010 Confidential 7 Simulation Scenario OPNET simulator (modified) Based on 3GPP Recommended models  Urban HeNB deployment 10 single-floor houses per femtocell block Simulated with eNB-to-Femtocell block distance 100m, 200m and 300m Femtocells are deployed evenly at 5 houses of femtocell block & at the center of a house UE is outside a house & 1 meter from the nearest homes
Broadband IT Korea © ETRI, 2010 Confidential 8 Other Assumptions Macro eNB ParameterAssumption Inter-site distance1700m Number sites1 cells Carrier frequency2000 MHz Signal bandwidth10MHz Total BS TX power46dBm Penetration Loss10dB eNB Antenna gain14dB ParameterAssumption HeNB Frequency ChannelSame frequency and same bandwidth as macro cell HeNB House Dimensions10m x10m HeNB positionHouse center Min separation UE to HeNB10m Tx power of HeNB20 dBm HeNB antenna gain5 dBi Penetration loss of wall inside apartment 0.7 x R Exterior wall penetration loss10dB Home eNB Propagation
Broadband IT Korea © ETRI, 2010 Confidential 9 Measurement Approaches No-gap No gap assignment Assuming UE know the timing of MAC frame by monitoring P- SCH UE can choose MIB sub-frame at the exact time Once UE know the timing of MAC frames and FSN, it can calculate the exact timing of SIB1 sub-frames Large-gap One large-gap assigned from serving cell UE measures MIB & SIB1 on the measurement gap indicated by eNB UE cant receive frames of serving cells during the gap
Broadband IT Korea © ETRI, 2010 Confidential 10 Measurement Approaches Small-gap First small gap assigned from serving cell for MIB measurement UE report the FSN & timing of frames to serving cell Small gaps for SIB1 measurement are allocated at the exact time
Broadband IT Korea © ETRI, 2010 Confidential 11 Simulation Results & Analysis
Broadband IT Korea © ETRI, 2010 Confidential 12 Gross Acquisition Time Distribution Change rapidly when UE location are below 180m away from eNB The distance between UE and eNB has impact on SI measurement in this area Converge to constant time over 180m About 4ms for No-gap, 9ms for small-gap & 22ms for large-gap
Broadband IT Korea © ETRI, 2010 Confidential 13 MIB & SIB1 Acquisition Time MIB acquisition time No-gap shows better performance than small-gap In no-gap UE utilizes the timing of MIB sub-frame whereas in small-gap it doesnt SIB1 acquisition time Same for No-gap & small-gap They utilizes the timing of SIB1 sub-frame
Broadband IT Korea © ETRI, 2010 Confidential 14 Service Interruption Time MIB/SIB1 Measurement UE begin to measure MIB/SIB1 at the time when MIB/SIB1 sub-frames arrive Reducing frame loss
Broadband IT Korea © ETRI, 2010 Confidential 15 Service Interruption Time MIB Measurement eNB allocate measurement-gap without knowing about timing UE begin to measure MIB on the measurement gap indicated by eNB In worst cases, 14ms for MIB measurement SIB1 Measurement eNB allocate measurement gap at the time when SIB1 sub-frames arrive UE can measure SIB1 on the shortest time
Broadband IT Korea © ETRI, 2010 Confidential 16 Service Interruption Time MIB/SIB1 Measurement eNB allocate measurement-gap without knowing about timing In worst cases, 27ms for MIB/SIB1 measurement
Broadband IT Korea © ETRI, 2010 Confidential 17 Conclusions No-gap approach It utilizes the timing of both MIB & SIB1 Thanks to that, it shows best performance over others Small-gap approach It utilizes only the timing of SIB1 sub-frame Because of that, it shows less performance than no-gap approach In addition, it requires frequent gap assignment and causes signaling overhead between eNB and UE Large-gap approach It shows worst performance Tips for reducing service interruption time Make use of the timing of target Home eNB
Broadband IT Korea © ETRI, 2010 Confidential 18 References  3GPP TS , Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Overall description; Stage 2, Rel. 9, v9.2.0, Dec  3GPP TS , General Packet Radio Service (GPRS) enhancements for E-UTRAN access, Rel. 9, v9.2.0, Dec  3GPP TS , E-UTRA RRC Protocol Specifications, Rel. 9, v9.2.0, Dec  R , Simulation assumptions and parameters for FDD HeNB RF requirements, 3GPP TSG-RAN WG 4, San Francisco, USA, May 2009.
Broadband IT Korea © ETRI, 2010 Confidential 19 Thank you! and Q/A
1 WM Lab, Tongji Univ. Performance Evaluation Methodology & Key Technologies of New Generation Broadband Wireless Access Networking.
1 Predictive Group Handover Scheme with Sub-Channel Borrowing for IEEE j- enabled Vehicular Networks Broadband Wireless Communication.
Features of Long Term Evolution (LTE)
Addition 1’s to
Jeopardy Topic 1Topic Q 1Q 6Q 11Q 16Q 21 Q 2Q 7Q 12Q 17Q 22 Q 3Q 8Q 13Q 18Q 23 Q 4Q 9Q 14Q 19Q 24 Q 5Q 10Q 15Q 20Q 25 Final Jeopardy.
Supervisor: Prof. Jyri Hämäläinen Instructor: M.Sc Zhong Zheng A part of NETS2020 project Ying Yang
Addition Facts = = =
Test B, 100 Subtraction Facts
25 seconds left….. 24 seconds left….. 23 seconds left…..
Copyright © 2011, LTE Introduction Tzu-chin Liu 15 th March
Doc.: IEEE xxx Submission May 10-14, 2004 Alan Carlton, Interdigital CommunicationsSlide 1 Defining Layer 2.5 Alan Carlton Interdigital Communications.
1 3GPP LTE presentation 3GPP TSG RAN Chairman 3GPP TSG RAN Chairman 3GPP LTE presentation Kyoto May 22rd 2007.
1 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 2.1 Chapter 2.
3G and B3G Deployment China Mobile Research Institute
Lets play bingo!!. Calculate: MEAN Calculate: MEDIAN
LTE-A Carrier Aggregation Dale Little EETS8316. The problem Increase data rates over current LTE speeds – LTE Rel8 Peak DL: 100Mbps UL: 50Mbps – LTE Rel10:
1 Wideband Simulation Results European Organisation for the Safety of Air Navigation AGCFG #3 & ACP WG-C#11 Lommaert Luc DAS/CSM September, Brussels.
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Downlink Shared Channel - DSCH DSCH associated with a dedicated channel (DCH) Downlink.
Doc.: IEEE /0272r0 Submission February 2011 Ron Porat, Broadcom Outdoor Path Loss Models for ah Date: Authors: Slide 1.
WEEK 1 You have 10 seconds to name…
Way Forward on Simulation Assumptions and Methodology for NB-IOT coexistence study [Qualcomm, Ericsson, Nokia Networks, Huawei,…] R GPP TSG-RAN.
Copyright © Chang Gung University. Permission required for reproduction or display. On Femto Deployment Architecture and Macrocell Offloading Benefits.
F ACULTY OF C OMPUTER S CIENCE & E NGINEERING Chapter 02. Radio Frequency.
Performance Analysis of LTE-Advanced Relay Node in Public Safety Communication M.Sc. Inam Ullah Supervisor: Prof. Jyri Hämäläinen Aalto University School.
We will resume in: 25 Minutes We will resume in: 24 Minutes.
College of Engineering Capacity Allocation in Multi-cell UMTS Networks for Different Spreading Factors with Perfect and Imperfect Power Control Robert.
Chapter 13 How Cells Obtain Energy from Food Essential Cell Biology Third Edition Copyright © Garland Science 2010.
DIVIDING INTEGERS 1. IF THE SIGNS ARE THE SAME THE ANSWER IS POSITIVE 2. IF THE SIGNS ARE DIFFERENT THE ANSWER IS NEGATIVE.
3GPP2 LTE Workshop SEOUL, Korea, 27 th– 28 th June GPP LTE Status Status Source Source 3GPP TSG RAN Chairman 3GPP TSG RAN Chairman ETSI TC MSG Chairman.
First Conclusions and Way Forward on Simulation Assumptions and Methodology for NB-IOT coexistence study [Qualcomm, Ericsson, Nokia Networks, Huawei,…]
GSM Receiver Key Parameters 2 GH. Contents NF (Noise Figure) Intermodulation Blocking Characteristics Phase Noise from Block Characteristics Reference.
© S Haughton more than 3?
ELEC-E7120 Wireless Systems Final presentation by Group 2 Identifying ‘Bad’ Network Coverage Area Ashutosh Sharma (ID: ) Hamit Taylan YÜCE( ID: )
1 Adaptive Bandwidth Allocation in TDD-CDMA Systems Derek J Corbett & Prof. David Everitt The University of Sydney.
Evolution road of 3GPP-LTE Huawei Technology Co., LTD DOCUMENT #:GSC13-PLEN-41 FOR:Presentation SOURCE:Huawei Technologies Co., Ltd AGENDA ITEM:Plenary;
FACTORING Think unfoil Work down, Show all steps ax 2 + bx + c.
PSSA Preparation. Question 1(no calculator) D Question 2 (no calculator)
Squares and Square Root WALK. Solve each problem REVIEW:
Doc.: IEEE /0251r0 Submission February 2011 Ron Porat, Broadcom Outdoor Channel Models for ah Date: Authors: Slide 1.
LTE Architecture KANNAN M JTO(3G). EPC LTE System Architecture-EPS E-UTRAN eNode B P-GW E UTRA S-GW HSS MME Evolved Packet Core (EPC)
1 LTE standards Status for this work in 3GPP and what next for the Future Francois COURAU 3GPP TSG RAN Chairman.
INTRODUCTION. Homogeneous Networks A homogeneous cellular system is a network of base stations in a planned layout and a collection of user terminals,
INVENTORY AND OVERHEAD Chapter Eighteen Copyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin.
McGraw-Hill©The McGraw-Hill Companies, Inc., 2003 Chapter 11 Ethernet Evolution: Fast and Gigabit Ethernet.
GG Consulting, LLC I-SUITE. Source: TEA SHARS Frequently asked questions 2.
1 First EMRAS II Technical Meeting IAEA Headquarters, Vienna, 19–23 January 2009.
© 2017 SlidePlayer.com Inc. All rights reserved.