HSDPA Technology :HSDPA Technology ZTE University TD&W&PCS BSS Course Team


Content :Driver to HSDPA HSDPA Theory HSDPA Terminal and Commercial Situation HSDPA Solution Content


Competition to operator :Competition to operator Introduce HSDPA to WCDMA 2.5G GPRS: 9.05 -171.2kbit/s, Service deployment is bad CDMA2000 1x: 153.6kbit/s, Service deployment is good 3G CDMA 1x EV-DO: 2.4Mbit/s WCDMA R99/R4: 2Mbit/s Driver to HSDPA


The driver to HSDPA :The driver to HSDPA HSDPA is a new technology to enhance WCDMA PS data service HSDPA gives subscribers new experience of more higher speed data service with shorter time delay HSDPA brings more bandwidth and more online subscribers It is necessary and feasible to introduce HSDPA to WCDMA network With consideration of network planning and deployment cost, HSDPA should be applied at the beginning, or at least the Node B should hardware ready for HSDPA HSDPA brings new requirement of transmission and network planning. Pay more attention to it High Speed Downlink Packet Access Driver to HSDPA


HSDPA, Mature technology :HSDPA, Mature technology 2002.6 R5 released 2003.6 HSDPA (High Speed Downlink Packet Access) was added into R5 HSDPA is smoothly evolved from WCDMA R99 without any big effect to the existing R99 network 1 new transport channel: HS-DSCH 3 new physical channels:HS-PDSCH, HS-SCCH and HS-DPCCH MAC-hs sub-layer, HARQ (Fast Hybrid Automatic Repeat reQuest), Fast Scheduling and AMC (Adaptive Modulation and Coding) HSDPA --Max. downlink data rate: 14.4Mbps Driver to HSDPA


Competition advantage of HSDPA :Competition advantage of HSDPA HSDPA supports more users while provides higher data rate! Driver to HSDPA


Perspective of HSDPA application :Perspective of HSDPA application HSDPA Modem HSDPA fixed terminal Flexible access Higher data rate More users Richer service Obvious advantage to compete with other 3G technology like CDMA2000 HSDPA data card HSDPA PDA Mixed with WMAN (WiMAX) and WLAN (Wi-Fi), more advantage of broadband wireless access HSDPA handset HSDPA Modem HSPDA data card HSDPA PDA HSDPA, roundly improves the value of WCDMA network Driver to HSDPA


Content :Driver to HSDPA HSDPA Theory HSDPA Terminal and Commercial Situation HSDPA Solution Content


Evolve from R99/R4 to HSDPA :Evolve from R99/R4 to HSDPA HSDPA Theory


New physical channels of HSDPA :New physical channels of HSDPA HS-PDSCH is the bearer of HS-DSCH, transfer HSDPA user data (downlink) 2ms TTI, 3 slots, spread factor is fixed to 16, multiple users & multiple codes, modulation method: QPSK and 16QAM HS-SCCH bears information of HS-DSCH such as UE specialized mask code, modulation and coding policy, etc. (downlink) 2ms TTI, 3 slots, spread factor is fixed to 128 HS-DPCCH bears feedback information of HS-PDSCH such as Channel Quality Indication (CQI), H-ARQ confirm information ACK/NACK, etc. (uplink) 2ms TTI, 3 slots, spread factor is fixed to 256 HSDPA Theory


HSDPA working procedure :HSDPA working procedure RNC Node B (AMC and HARQ) Data Packet ?ACK/NACK (HS-DPCCH) ?Data packet + re-send (if need) (HS-DSCH) AMC, modulation and coding selection HARQ, lowers the time delay, improves the data throughput Fast scheduling, quick decision ?CQI(HS-DPCCH) ?HS-DSCH parameters (HS-SCCH) Data (HS-DSCH) ?Evaluation, HS-DSCH parameters setting ?Receive data from HS-DSCH according to Detecting HS-SCCH HSDPA Theory


Key technology: AMC (1) :Key technology: AMC (1) Adaptive Modulation and Coding (AMC), Node B can adjust modulation (QPSK, 16QAM) and coding rate (1/3, 3/4, etc) in time according to the feedback channel state from UE. So data transferring can follow the step of channel state changing in time, it is a good technology for link self-adaptive For long time delay packet data, AMC can improve system capacity without add interference to neighbor cells HSDPA Theory


Key technology: AMC (2) :Key technology: AMC (2) Node B CQI (Report periodically) Modulation (QPSK, 16QAM) self-adaptive Good channel state: 16QAM Bad channel state: QPSK Coding rate (1/3, 3/4, etc.) self-adaptive Good channel state: 3/4 Bad channel state: 1/3 Efficiently utilize the channel condition Good channel state: higher speed Bad channel state: lower speed Codes adjusting Good channel state: more codes Bad channel state: fewer codes HSDPA Theory


Key technology: AMC (3) :Key technology: AMC (3) HSDPA, the service bearing ability of one channel is further larger than R99/R4 by using more efficient modulation and coding rate, while SF is twice as R99/R4 As using bigger SF, system can support more users HSDPA, R99/R4 channel bearing ability comparison 16QAM and higher coding rate HSDPA Theory


Key technology: AMC (4) :Key technology: AMC (4) HSDPA throughput, relative with modulation & coding rate HSDPA can provide data rate per user up to 10.8Mbps (16QAM, 3/4) by AMC and multiple codes technology In the situation of high speed, HSDPA requires high channel condition Multiple coding rates HSDPA Theory


Key technology: HARQ (1) :Key technology: HARQ (1) Hybrid Automatic Repeat reQuest (HARQ) is a combined technology with Forward Error Correction (FEC) and Automatic Repeat reQuest (ARQ) HARQ can provide flexible and subtle adjustment for its process by cooperated with AMC HSDPA Theory


Key technology: HARQ (2) :Key technology: HARQ (2) Advantage: improve transferring reliability Disadvantage: lower utilization in bad channel state Advantage: good performance in lower Bit Error Rate (BER) Disadvantage: bad performance in high BER F E C A R Q H A R Q Combine FEC and ARQ, each sending packet includes error detection bit and error correction bit HSDPA Theory


Key technology: Quick scheduling (1) :Key technology: Quick scheduling (1) With quick channel feedback, HSDPA can suitably adjust coding rate, codes, modulation, etc. in time according to the channel state HSDPA channel feedback time delay is about 8.5 TS Quick channel feedback HSDPA Theory


Key technology: Quick scheduling (2) :Key technology: Quick scheduling (2) Scheduling policy Time fairness Traffic fairness Max-C/I Proportional fairness Every user get equal service time, but the traffic maybe not equal, the fairest algorithm but has the lowest traffic Every user get the same traffic, but the time maybe not equal, has the lower utility of system resource because it will schedule the UE with bad channel state Only the user in best channel state (biggest C/I) will get the service priority in each turn, the biggest traffic but has the worst fairness Weighted compromise of above algorithms and has bigger system traffic and better service fairness UE1 HSDPA Theory


Advantage of HSDPA :Advantage of HSDPA Provides various speed with stable power (stable power, adjustable speed) Adjust power to guarantee service speed (stable speed, adjustable power) HSDPA R99/R4 HSDPA Theory


Content :Driver to HSDPA HSDPA Theory HSDPA Terminal and Commercial Situation HSDPA Solution Content


Terminal Changing caused by HSDPA :Terminal Changing caused by HSDPA UE changing Powerful 3G terminals Much more powerful, attractive HSDPA terminals faster processor larger memory advanced receive and process algorithm 16QAM demodulation, multiple decoding MAC-hs process multiple codes HSDPA terminal, first choice for high-end commercial application HSDPA Terminal and Commercial Situation


HSDPA terminal category and capability :HSDPA terminal category and capability Different UE supports various channels, minimal TTI and other parameters UE listed in Category 11 is in worst receive capability, Category 10 is the best HSDPA Terminal and Commercial Situation


HSDPA commercial process :HSDPA commercial process Terminals 2005 2Q, several manufacture promote HSDPA trial version terminal 2005 4Q, promote commercial HSDPA terminal Operator to deploy HSDPA Cingular plan to deploy HSDPA in major city, 2006; till the end of 2006, to provide the HSDPA service in most part of metropolitans. NTT Docomo will deploy HSDPA in first quarter 2006; In UK, mmO2 will launch the service in fourth quarter 2005;in HK H3G will provide commercial service in first quarter 2006 HSDPA standard has been determined HSDPA has adequate test instruments HSDPA technology has been tested in application Manufactures provide HSDPA commercial terminals in 2005 USA, Japan and the other operators start the HSDPA network construction ZTE equipment are HSDPA ready HSDPA Terminal and Commercial Situation


High data service brings new experience :High data service brings new experience Colorful email Multi-access Adopt the HSDPA, operator can provide higher bandwidth service. To deploy new service. Multimedia Download Cartoon mail HSDPA Terminal and Commercial Situation


Content :Driver to HSDPA HSDPA Theory HSDPA Terminal and Commercial Situation HSDPA Solution Content


Link budget for HSDPA :HSDPA can achieve the same coverage as R99/R4 under same data rate Link budget for HSDPA HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA makes the balance between the coverage and the throughput, increase the coverage decrease the throughput. HSDPA provides about 200kbps in the edge of cell, Less than the R99/R4 DCH. Recommend to combine the HSDPA and R99/R4 DCH together, at the edge of cell UE can “handover” into DCH. With this combination, you can take the most advantage from R99/R4 and HSDPA. HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA Solution


Combination of HSDPA and R99/R4 :Combination of HSDPA and R99/R4 HSDPA Solution


ZTE HSDPA construction solution :ZTE HSDPA construction solution If necessary, use a carrier only to support PS data HSDPA (PC card) f1 f2 f3 R99/R4+ HSDPA R99/R4+ HSDPA Phase I, II Phase III ZTE solution HSDPA construction area Phase I :several hot spot, and the important building to deploy HSDPA Phase II :all the hot spot and several macro sites to deploy HSDPA HSDPA Solution


Handover between HSDPA and R99/R4 :Handover between HSDPA and R99/R4 Handover between HSDPA, R99/R4 and DCH/FACH channels,can guarantee the service stability of HSDPA HSDPA Solution


Network analysis for HSDPA and R99/R4 :Network analysis for HSDPA and R99/R4 After the 3G network construction, the basic demand of WCDMA network should adopt HSDPA function, with soft smooth upgrade ability HSDPA is not constructed as a individual network, HSDPA is a enhanced technology of WCDMA (throughput, users) Network construction and plan for R99 and HSDPA based on the “one-shot planning, multi-stage deployment” HSDPA and R99 share the same network, Node B supports HSDPA function At dense traffic area (capacity is restricted), HSDPA can share the same site of R99 and achieve the same coverage of it. Capacity and coverage is a balance relationship, increase the network performance to the maximum by making a balance between them. HSDPA Solution


HSDPA for major area :HSDPA for major area Major area have no more than 10% proportion Major area occupy 80% traffic Fully HSDPA coverage for major area! Major area:dense urban + urban HSDPA Solution


HSDPA outdoor coverage :HSDPA outdoor coverage Adaptive modulation Good channel state: 16QAM Adaptive coding rate Good channel state: 3/4 AMC HSDPA requires a good channel condition for high speed service: Good channel state Near to Node B At beginning, HSDPA is suitable for micro Node B coverage of outdoor hotspot Micro Node B is more suitable for HSDPA HSDPA Solution


HSDPA indoor coverage :HSDPA indoor coverage HSDPA indoor coverage CBD (focus on) Office, hotel, etc Shopping center, airport, etc Macro Node B+Indoor distributed system Macro Node B/base band pool+RRU+ Indoor distributed system Micro Node B+Indoor distributed system Pico Solution Concern of HSDPA indoor coverage Is the existing indoor distributed system of R99/R4 suitable for HSDPA? Is capacity of the existing indoor distributed system enough?Is the transmission enough? the indices of indoor distributed components (like power distributor) required by HSDPA and R99 are same, So the existing indoor distributed system of R99/R4 is suitable for HSDPA HSDPA Solution


HSDPA network planning case study :Planning Area: 30Km2 Subscribers: 80000 HSDPA network planning case study HSDPA Solution


HSDPA transmission solution :For capacity R99 cell peak data rate: 7×384Kbps=2.688Mbps HSDPA cell peak data rate: 15×960Kbps×3/4 = 10.8 Mbps Peak throughput of HSDPA cell is 4 times as that of R99 cell Peak traffic of 3CS HSDPA Node B: 10.8×3×1.3×80% = 32M For traffic mode The PS traffic mode will change greatly, more PS traffic will rush into HSDPA system Peak throughput of HSDPA cell is 4 times as that of R99 cell, and mean throughput of HSDPA cell is 2 times as that of R99 cell Consider both capacity and traffic mode, transmission resource of Iub at beginning should be reserved 4 times as before or at least 2 times HSDPA requires more transmission resource, because of the changing of capacity of Node B and traffic mode HSDPA transmission solution HSDPA Solution


ZTE serialized Node B support HSDPA flexible update :Control HSDPA Processor DL Coder DL Base-band HSDPA Processor UL Decoder UL Base-band Mid-frequency After HSDPA Update Before HSDPA Update After HSDPA Update Before HSDPA Update Iub Interface Features Advanced design,HSDPA functions have been embedded into hardware. Just update software to support HSDPA functions. No additional hardware is needed! ZTE serialized Node B support HSDPA flexible update HSDPA Solution


ZTE Node B hardware support HSDPA :HSDPA functions have already been embedded into ZTE serialized Node B hardware. The base-band processing chip supports 16QAM modulation. Only software update is needed for Node B to support HSDPA. Powerful base-band processing ability. For the case of updating the R99 cell into R99/HSDPA, no more base-band processing board is needed for Node B. As for RNC and CN, the introduction of HSDPA will only increase the data traffic which means only additional interface hardware resource are needed. ZTE Node B is designed based on the most advanced HSDPA technology in the world. It is absolutely ensured that to upgrade from R99 to HSDPA, no board is required to be changed! The base-band processing board also possesses a unique feature that is it supports the networking of HSDPA and R99 with either the same carrier or not! The most advanced base band processing in the world! ZTE Node B hardware support HSDPA HSDPA Solution


ZTE serialized Node B totally support HSDPA :B09 indoor macro: support up to 3C3S and 6CS RRU B09A outdoor macro: support up to 3C3S and 6CS RRU B06C/B03C indoor/outdoor micro: support up to 2C3S/3C1S. B03R indoor/outdoor RRU: support up to 3C1S BBUA indoor/outdoor base-band pool: maximum processing capacity is up to 15CS B01C pico Node B: 1C1S configuration B09 BBUB B06C B03C/B03R B09A B01C ZTE serialized Node B totally support HSDPA HSDPA Solution


ZTE HSDPA Roadmap :V2.0 V3.0 2004/4Q 2005/3Q Time Version 2003/2Q V4.0 V4.5 2006/1Q R99 R4 R5 HSDPA Phase I R5 HSDPA Phase II Serialized Node B hardware support HSDPA Completed HSDPA trial system HSDPA commercial phase I HSDPA commercial phase II HSDPA PC card, 05/3Q test, 06/1Q commercial HSDPA terminal, 06/1Q test, 06/2Q commercial ZTE HSDPA Roadmap HSDPA Solution


HSDPA PC card (MU330) :HSDPA PC card (MU330) Functions WCDMA 2.1GHz, GSM900/1800/1900 WCDMA 384KDL/128KUL, GPRS Class 10 SMS, Voice HSDPA ETSI AT command interface OS: Windows 2000, XP Language: Chinese, English, etc. 3V SIM/USIM card HSDPA Solution


HSDPA handset (Q508) :HSDPA handset (Q508) Functions WCDMA, GSM900/1800/1900 WCDMA 384DL/128KUL, GPRS Class 10 Voice, MMS, WAP, Email, JAVA, Download Video phone, Streaming media, PTT LCS (A-GPS) MP3/MPEG4 Blue tooth/USB/mini-SD HSDPA Specs Dual camera (2000K pixels) Dual LCD: 260K colors Main LCD: 2.2”(240×320) MIDI: 72 chord HSDPA Solution


ZTE HSDPA solution conclusion :ZTE HSDPA solution conclusion ZTE serialized Node B is already hardware ready for downlink 14.4M, only software upgrade is needed ZTE RNC and CN, unified platform, 80G switching capability, high integration, high capacity, smooth evolution, to ensure the deployment of HSDPA HSDPA can share carrier with R99/R4, or use a exclusive carrier Support handover between HSDPA, R99/R4 and 2G Support simultaneous service of HSDPA and voice (or video telephony) Support at least 64 users per cell HSDPA can share base band board with R99/R4 All the Node Bs support HSDPA HSDPA Solution


Exercise :Exercise pls describe the differentia of HSDPA and R4. HSDPA introduce new physical channels, they are ( ) ( ) ( ). pls describe the key technology of AMC pls describe the key technology of HARQ. pls write down the main quick scheduling methods.