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 byMoriah Janes
Modified about 1 year ago
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Downlink Shared Channel - DSCH DSCH associated with a dedicated channel (DCH) Downlink Shared Channel - DSCH DSCH associated with a dedicated channel (DCH) 3GPP TSG RAN WG1 Meeting No. 2Tdoc R Yokohama, Japan, Jan Source: Nokia
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Outline DSCH options introduction DSCH associated with DCH - Description DSCH interaction with layer 2/3 Benefits Downlink code resource usage Operational aspects Performance UE Complexity with DSCH DSCH Layer 1 signaling needs DSCH operation in handover DSCH Conclusions
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH options ETSI documentation covers two options for DSCH operation 1. DSCH associated with a dedicated channel (DCH) 2. DSCH associated with a DSCH control channel Additionally so called MAC multiplexing was proposed for DSCH, but this was rejected in ETSI due mainly performance and complexity reasons In MAC multiplexing several users were sharing the same 10 ms radio frame In this slide set, the option 1, operation with DSCH with a dedicated channel (DCH) is presented in more detail and benefits to non- DSCH case are given.
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH associated with a DCH ( from UMTS XX.03, UTRA FDD; Transport channels and physical channels ) PDSCH = Physical Downlink Shared CHannel
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH interaction with Layer 2/3 (MAC) All the MAC PDUs belonging to the service to use DSCH are coded independently of DCH and sent on DSCH. Layer 2/3 controls the DSCH resource division, being indicated with TFCI or higher layer signalling
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Downlink code resource usage (1) Downlink code resource usage with dedicated channel (DCH) only: 384 kbits/s packet data with dedicated channel, 3 users Activity cycle 1/10, needed spreading ratio 8 (DCH) Resulting code usage is: with 3/8 of the total downlink code space occupied
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Downlink code resource usage (2) Downlink code resource usage with DSCH 384 kbits/s packet data with dedicated channel, 3 users Activity Cycle 1/10, needed spreading ratio 8 (DSCH), DCH spreading ratio 256 Resulting code usage is: with 1/8 + 3/256 of the total downlink code space occupied
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Downlink code resource usage (3) From the example case, with DSCH it is possible to support 3 times more users on a given packet data rate that providing the same via a dedicated channel before running out of downlink code resource. Dedicated channel (DCH) impact to the code resource usage is small with DSCH since DCH spreading factor can be kept at 256. DCH spreading ratio 512 also usable (In ARIB) In a comparison one has to note that there needs to be capability to provide not only layer 1 control (TPC, pilots & TFCI) on DPCCH but also to accommodate needs for higher layer control information for handover etc. purposes on DPDCH on the downlink.
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 Operation Aspects with DSCH (1) Terminals with different capabilities can share one DSCH Terminal with 384 kbits/s can co-exists sharing the same DSCH with a 144 kbits/s terminal. With 144 kbits/s two terminals can receive data simultaneously with code multiplexing. (Example) DSCH can be controlled alternatively with higher layer signaling when activity cycle (or idle times) is relatively long and frame by frame operation is not needed
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH Operational Aspects (2) Operational coverage: Code multiplexing provides possibility for adapting the data rate of DSCH according to the needed range, thus DSCH can reach the whole cell. BS power budget can be taken into account when allocating data to DSCH BS1 M2 512 kbits/s 64 kbits/s
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH Performance DSCH when associated with DCH can use: Fast power control Beam forming Code multiplexing principles allow to reduce variations in the interference level (More constant TX power level) Range is larger than with a fixed rate downlink channel, example: Example: DSCH data 512, 144 & 64 kbits/s Ranges equal to 512, 144 & 64 kbits/s can be achieved The coverage area for DSCH variable rate 3 times bigger compared to the fixed rate DSCH (with 512 kbits/s) (9 dB difference due data rates gives about 70 % more range or 3 times larger coverage area. (Pathloss exponent 3.6)
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 UE Complexity with DSCH Example; Terminal with 384 kbits/s receiving capability with and without DSCH Despreading: Despreading functionality added only with the capability to receive a parallel code channel with spreading ratio of 256. Compared to receiver with 384 kbits/s capability, the added complexity is very small. Buffering: Buffering is basically the same, difference is added from the possible time offset between a DCH and a DSCH (assumed to be within one slot), thus extra (2560/smallest spreading ratio) samples to buffer, less than 300 samples extra buffer, small with respect to turbo interleaver of up to 8192 samples) Other functions: TFCI decoding, power control and channel estimation: No impact (All done based on DCH)
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH Layer 1 Signaling needs The TFCI signalling on DPCCH is used to indicate the data rate for all services being provided to the mobile, including DSCH, (similar to code multiplexing.) Case A) The shared channel can use only one data rate for a given user, the TFCI usage is identical with the packet data on a dedicated channel. Case B) Packet data on dedicated channel would have more than single data rate, those rates are mapped on DSCH different spreading codes, with different spreading factors, again identical TFCI usage with and without DSCH. Case C) When TFCI combinations allow, alternative spreading codes under the code tree are used for one data rate. Example would be to have peak rate mapped to one code and then lower rate mapped to two alternative codes.
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH operation in handover DSCH is not operated in soft handover, hard handover is used If the associated DCH contains e.g. speech, it can be operated in soft handover. Power control for DSCH is not necessary optimal in this case, but situation is similar to the case of high bit rate packet on dedicated channel as well (which has not been assumed to be in soft handover either in RTT simulations) If DCH is in soft handover, hard handover for DSCH is very fast as synchronisation exists already (depends only on the network side) With multi-service case and DCH in soft handover it is possible to use either TFCI or higher layer signalling to indicate data on DSCH, depending on network capability. During slotted/compressed frames UE would not have data on DSCH
© NOKIAProduced as informative material for 3GPP RAN WG1 meeting No. 2 DSCH conclusions DSCH is improvement for UTRA packet data capabilities, since Helps to avoid downlink code shortage Can cope with future enhancements, such as adaptive antennas Provides fast power control Impact to terminal complexity is small Fast resource sharing, good end user quality Existing TFCI signaling can be used DSCH is recommended to be part of the combined 3GPP specification Note: This slide set focuses on DSCH associated with DCH, the concept of DSCH operated with a specific DSCH control channel is not covered by this presentation.
PHYSICAL LAYER. 6.2 Transport Channels and their Mapping to the Physical Channels.
1 Harmonization Meeting on 3GPP HSDPA and 3GPP2 1xEV-DV Work New-Jersey Nov 2001 HSDPA presentation 3GPP TSG RAN WG2 Chairman, Nortel Networks 3GPP.
WCDMA : Introduction Multiple Access : Direct-Sequence Code Division Multiple Access (3.84Mcps) Frame Duration : 10ms Multi-rate Concept : Variable spreading.
6/ EN/LZU Rev A WCDMA Air Interface Part 6: 1 of 17 WCDMA Air Interface Training Part 6 WCDMA TDD Mode.
Spread spectrum systems II: WCDMA WCDMA basic properties Channel mapping Chip sequence processing Soft handover Power control.
Korean Intellectual Property Office – ICU seminar Ha, Jeongseok March 7, 2007 School of Engineering, Information and Communications University Wideband-CDMA.
Telecommunications and Multimedia Unit UTRA TDD Overview Agostinho Castro Rui Sarmento Castro
Packet service in UMTS: delay- throughput performance of the downlink shared channel Flaminio Borgonovo, Antonio Capone, Matteo Cesana, Luigi Fratta.
Overview. UMTS (Universal Mobile Telecommunication System) the third generation mobile communication systems.
Outline Introduction (Resource Management and Utilization). Compression and Multiplexing (Other related definitions). The Most Important Access Utilization.
1 Harmonization Meeting on 3GPP HSDPA and 3GPP2 1xEV-DV Work New-Jersey Nov 2001 HSDPA - Simulation Assumptions in 3GPP TSG RAN WG1 Chairman Antti.
CDMA X RTT Overview. Global 3G Evolution.
TD-SCDMA. What is TD-SCDMA? Acronym for Time Division Synchronous Code Division Multiple Access Jointly developed by Siemens and the China Academy of.
The Softest Handoff Design Using Iterative Decoding (Turbo Coding) Byung K. Yi LGIC 3GPP2 TSG-C WG 3 Physical Layer Jan. 11, 2000.
GSC: Standardization Advancing Global Communications Evolution of TD-SCDMA China Communications Standards Association (CCSA) Chicago, May 29th to 2nd June,
1 LTE standards Status for this work in 3GPP and what next for the Future Francois COURAU 3GPP TSG RAN Chairman.
VSMC MIMO: A Spectral Efficient Scheme for Cooperative Relay in Cognitive Radio Networks 1.
1 © NOKIA FILENAMs.PPT/ DATE / NN AMR characterisation test cases with UTRA Joint 3GPP RAN WG1 and SA WG4 meetingTdoc R1-99i78 November 19th, Paris, France.
ECE 5221 Personal Communication Systems Prepared by: Dr. Ivica Kostanic Lecture 24 – Basics of 3G – UMTS (3) Spring 2011.
Final Year Project Presentation FYP 08 Arsalan Tariq Mir Saad Najeeb Syed Ammar Faheem.
1 A Comparison Study of 3G System Proposals: cdma2000 vs. WCDMA Emre A. Yavuz and Dr. Victor C. M. Leung University of British Colombia Vancouver, BC.
ECE 5221 Personal Communication Systems Prepared by: Dr. Ivica Kostanic Lecture 24 – Basics of 3G – UMTS (4) Spring 2011.
3G CDMA - WCDMA and cdma2000 Rodger E. Ziemer IEEE Communications Society Distinguished Lecturer Program.
QUALCOMM PROPRIETARY QUALCOMM Corporate R & D1 Performance of VoIP Services over 3GPP WCDMA Networks Ozcan Ozturk Qualcomm.
3.5G-High Speed Downlink Packet Access(HSDPA) Under the Guidance of Dr.T.Kishore Kumar Associate Professor SEMINAR By K.Vamsi Krishna Roll no:EC09425.
Aida BotonjićTieto1 LTE Aida Botonjić. Aida BotonjićTieto2 Why LTE? Applications: Interactive gaming DVD quality video Data download/upload Targets: High.
WCDMA Introduction Spreading Code Chia-Chi Yu
10 th MCM - Novi Sad, March 2006 Joaquim Bastos ( ) 1 The information in this document is provided as is and no guarantee or warranty.
WCDMA AND WLAN FOR 3G AND BEYOND 通訊所 研二 楊川民.
C80216m-08_215 ProjectIEEE Broadband Wireless Access Working Group Title16m Downlink Dedicated Pilot Structure for TDM Control.
Cdma2000 Release C (1xEV-DV) Status and Summary. Outline Cdma2000 1xEV-DV Release C Overview –Design compatibilities –Release C enhancements to cdma2000.
1. 2 WP-CDMA Distinguishing Features 1. Uplink Common Packet Channel (All Rates) Common Packet Channel will transport all data rates up to and including.
Section 3:cdma2000 Reverse Link 1 cdma2000 Reverse Link.
IEEE Communications Magazine February 2006 Stefan Parkvall, Eva Englund, Magnus Lundevall, and Johan Torsner, Ericsson Research 2015/12/31.
網路多媒體研究所 1 WCDMA Technology Past, Present and Future Part IV: Physical Layer on WCDMA.
Resource Allocation and Reuse in LTE. Mobile Communication 2 Markus Laner Seminar, SS Contents Introduction History of Resource Reuse Proposals.
Master’s Thesis: Case Studies of Network Planning for Wireless Broadband Services – HSDPA and WiMAX Author: Simo-Ville Hönö Supervisor: Prof. Riku Jäntti.
Evaluation of Dynamic Block error(BLER) target Selection in HSUPA 20 th November, 2014 Tejas Subramanya Supervisor: Prof. Riku Jantti Instructor: Rua Philippe.
Slide title In CAPITALS 50 pt Slide subtitle 32 pt H igh S peed D ownlink P acket A ccess Naren Mohan
1 3GPP LTE presentation 3GPP TSG RAN Chairman 3GPP TSG RAN Chairman 3GPP LTE presentation Kyoto May 22rd 2007.
HSDPA Technology 1 Survey on High Speed Downlink Packet Access (HSDPA) Technology Chaoyi Chen April. 17, 2007.
Network Solutions Sector 1. 2 SHARED CHANNELS FOR PACKET DATA TRANSMISSION IN W-CDMA.
The Impact of Channel Estimation Errors on Space-Time Block Codes Presentation for Virginia Tech Symposium on Wireless Personal Communications M. C. Valenti.
Overcoming the Sensing-Throughput Tradeoff in Cognitive Radio Networks ICC 2010.
HSPA/HSDPA (Beyond 3G) PRESENTED BY- NEHA ANAND NUPUR ANAND ROLL NO-50 ROLL NO-55.
TCS 316 High Speed Information Networks UMTS Handover by Nasir Faruk Mobile Week 13 May,
1 S Post–graduated Course in Radio Communication, H. Yin Handover Control in CDMA Radio Networks Hongying Yin Feb. 11 th 2003 Helsinki University.
RAN Feature PresentationJul 27, Channel Switching Capability Optimizes the utilization of radio resources, by switching UE’s to the most suitable.
1 Adaptive resource management with dynamic reallocation for layered multimedia on wireless mobile communication net work Date ： 2005/06/07 Student ： Jia-Hao.
© 2017 SlidePlayer.com Inc. All rights reserved.