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Wireless Lab NUI 070610
The document provides an overview of RAN evolutions from a vendor's perspective. It discusses key market trends driving 1000x increases in network traffic and connections by 2020. It then summarizes technology advances like HSPA evolution, LTE speed increases up to 1000 Mbps, and the benefits of harmonized spectrum standards to facilitate global roaming. Carrier aggregation techniques are described to efficiently use fragmented spectrum and support wider channel bandwidths of up to 100 MHz for LTE Advanced.
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Wireless Lab NUI 070610
- 1. RAN Evolutions… a Vendor’s Perspective JohnHolland CTO Ericsson Ireland June 2010 WirelessLab SIG AAA1 NUI Maynooth
- 2. © Ericsson 2010 AGENDA ›Some MARKET TRENDS
- 3. © Ericsson 2010 1000x Traffic1000 x Traffic 50 Billion50 Billion ConnectionsConnections 8 Billion8 Billion subscriberssubscribers EVERYTHING & EVERYONE IS CONNECTED MOBILE VOICE MOBILE BROADBAND RADIO IN ALL THINGS waves of mobile connectivity
- 4. © Ericsson 2010 broadbandsubscriptions 0 500 1 000 1 500 2 000 2 500 3 000 3 500 4 000 4 500 2008 2009 2010 2011 2012 2013 2014 2015 Subscriptions(million) Mobile Fixed Source: Ericsson Mobile Broadband includes: CDMA2000 EV-DO, HSPA, LTE, Mobile WiMAX & TDSCDMA. It includes handsets, USB dongles, embedded modules etc. The vast majority is handsets. Please note that mobile broadband access could be used for fixed applications Fixed broadband includes DSL, Cable and Fiber This slide contains forward looking statements Fixed and mobile broadband subscriptions M2M connections to be added on top 3 billion mobile broadband subscriptions – redefines the market 3 billion mobile broadband subscriptions – redefines the market
- 5. © Ericsson 2010 Measuredmobile voice and data traffic Killer APP : Connected Mobility Source: Ericsson Measurements in Global Networks (DVB-H, Mobile WiMax, M2M and WiFi traffic not included) This slide contains forward looking statemen 0 20000 40000 60000 80000 100000 120000 140000 160000 180000 200000 Q1 07 Q2 07 Q3 07 Q4 07 Q1 08 Q2 08 Q3 08 Q4 08 Q1 09 Q2 09 Q3 09 Q4 09 Q1 10 Total(UL+DL)traffic(TB/month) Speec h Pac ket Traffic Growth 100%
- 6. © Ericsson 2010 ”Everythingthat benefits from being connected will be connected”
- 7. © Ericsson 2010 Driversfor power efficiency Energy Cost Brand image Power disturbances Off-grid sites Government Directives
- 8. © Ericsson 2010 Multistandard Radios › Ericsson RBS 6000 › LTE, WCDMA,GSM in one radio › Multi-Standard › Scalable, Modular Design
- 9. © Ericsson 2010 RBS6000 Modules in Legacy › Main Concepts: – Protecting operators existing investment – Hybrid Solution (for in- and outdoor) – Reuse as site cabinet for main unit (only for outdoor) RBS 2000 RBS 3000 RBS 6000 Evolved Modules
- 10. © Ericsson 2010 Expandingsolution portfolio Macro, Micro, Pico, RRU, Active Antennae
- 11. © Ericsson 2010 AGENDA ›HARMONISATION
- 12. © Ericsson 2010 Harmonizedspectrum and standards › economy of scale (based on a mass market) › easy cross-border coordination › cross-border operation (between countries) › global roaming capabilities › Interoperability choice and convenience › efficient use of spectrum (also in border areas) Globally harmonized spectrum and standards are essential economy of scale harmonizedspectrum standards spectrumefficiencyproviding affordable services to all
- 13. © Ericsson 2010 CommonLTE Evolution Alignment for WCDMA/HSPA, TD-SCDMA (China) and CDMA GSM WCDMA HSPA TD-SCDMA HSPA LTE FDD and TDD GSM Track (3GPP) CDMA Track (3GPP2) CDMA One EVDO Rev A WiMax Track (IEEE) (Fixed WiMax) Mobile WiMax LTE the Global standard for Next Generation (4G) FDD FDD TDD TDD ~90% ~10% ~1% 2014
- 14. © Ericsson 2010 TDD Band“Identifier” Frequencies (MHz) 33,34 TDD 2000 1900-1920 2010-2025 35,36 TDD 1900 1850-1910 1930-1990 37 PCS Center Gap (1915) 1910-1930 38 IMT Extension Center Gap 2570-2620 39 China TDD 1880-1920 40 2.3 TDD 2300-2400 Additional (FDD&TDD) 3.5 GHz 3400-3600 3.7 GHz 3600-3800 FDD Band “Identifier” Frequencies (MHz) 1 IMT Core Band 1920-1980/2110-2170 2 PCS 1900 1850-1910/1930-1990 3 GSM 1800 1710-1785/1805-1880 4 AWS (US & other) 1710-1755/2110-2155 5 850 824-849/869-894 6 850 (Japan) 830-840/875-885 7 IMT Extension 2500-2570/2620-2690 8 GSM 900 880-915/925-960 9 1700 (Japan) 1750-1785/1845-1880 10 3G Americas 1710-1770/2110-2170 11 UMTS1500 1428-1453/1476-1501 12, US 700 698-716/728-746 13, 776-788/746-758 14 788-798/758-768 17 704-716/734-746 1880-1920China TDD39 2570-2620IMT Extension Center Gap 38 2.3 TDD PCS Center Gap TDD 1900 TDD 2000 “Identifier” TDD 2300-240040 (1915) 1910-193037 1850-1910 1930-1990 35,36 1900-1920 2010-2025 33,34 Frequencies (MHz)Band 790-862Digital Dividend 3.5 GHz Additional being specified (FDD&TDD) 3400-3600 704-716/734-74617 788-798/758-76814 776-788/746-75813, 1428-1453/1476-1501UMTS150011 1710-1770/2110-21703G Americas10 1750-1785/1845-18801700 (Japan)9 US 700 GSM 900 IMT Extension 850 (Japan) 850 AWS (US & other) GSM 1800 PCS 1900 IMT Core Band “Identifier” FDD 698-716/728-74612, 880-915/925-9608 2500-2570/2620-26907 830-840/875-8856 824-849/869-8945 1710-1755/2110-21554 1710-1785/1805-18803 1850-1910/1930-19902 1920-1980/2110-21701 Frequencies (MHz)Band 3.7 GHz 3600-3800 Current 3gpp bands early lte
- 15. © Ericsson 2010 Mainstreamband selections enable broad device offerings 93% 5%15% 31% 37% 43% Source: GSA Dec 2009 0 200 400 600 800 1000 1200 1400 1600 1800 2100 850 850/2100 850/1900/2100 900 AWS Spectrum band support (MHz) #ofHSPAdevicemodels spectrum band support in HSPA devices 93% 5%15% 31% 37% 43% Source: GSA Dec 2009
- 16. © Ericsson 2010 AGENDA ›Technology and data rates
- 17. © Ericsson 2010 HSPAEvolution Peak rate in Mbps … 7 21 28 42 84 168 HSPA 64QAM MIMO Multi carrier (2) + 64QAM or MIMO + 64QAM Multi carrier (2) + 64QAM + MIMO or Multi carrier (4) + 64QAM Multi carrier (4) + 64QAM + MIMO Spectrum efficiency gain Aggregation gain Ericsson Academy: The Evolution of Mobile Broadband in WCDMA RAN Link
- 18. © Ericsson 2010 LTESpeed evolution 2009-12 2010-15 2014-18 Peak rate ~50 Mbps ~150 Mbps ~1000 Mbps Typical user rate downlink 5-30 Mbps 10-100 Mbps Operator dependent Typical user rate uplink 1-10 Mbps 5-50 Mbps Operator dependent LTE Advanced Radio Systems
- 19. © Ericsson 2010 LTEkey features › LTE radio access – Downlink: OFDM – Uplink: SC-FDMA › Advanced antenna solutions – Diversity – Beam-forming – Multi-layer transmission (MIMO) › Spectrum flexibility – Flexible bandwidth – New and existing bands – Duplex flexibility: FDD and TDD › Simplicity – All IP architecture – SON , Self Organising Network – Packet Switched network 20 MHz1.4 MHz SC-FDMA OFDMA TX TX IP transport
- 20. © Ericsson 2010 LTE/EPCNetwork Architecture GGSN => PS-GW SGSN => MME MME = Mobility Management Entity P/S-GW = PDN/Serving gateway PDSN = Packet Data Serving Node BSC RNC SGSN/MME GGSN/ P/S-GW GSM LTE EPC WCDMA IP networks
- 21. © Ericsson 2010 Morethan 1000 Mbps verified › 4 x 20 MHz FDD › DL 4x4 MIMO scheme › eNodeB transmitting 1.2 Gbps › UE receiving, demodulating and decoding >1000 Mbps
- 22. © Ericsson 2010 LTETDD and LTE FDD Physical layer and lower L2 – in short › High degree of commonality between TDD and FDD TDD FDD DL transmission scheme OFDM OFDM UL transmission scheme DFTS-OFDM DFTS-OFDM Bandwidth 1.4, 3, 5, 10, 15, 20MHz 1.4, 3, 5, 10, 15, 20MHz Minimum TTI 1ms 1ms Subcarrier spacing 15kHz 15kHz Cyclic prefix lengths 4.77us,16.7us 4.77us,16.7us Modulation QPSK, 16QAM, 64QAM QPSK, 16QAM, 64QAM DL Reference signals 1,2, or 4 cell specific 1 or 2 UE-specific 1,2, or 4 cell specific 1 or 2 UE-specific PRACH PRACH format 0-3 PRACH format 4 in UpPTS PRACH format 0-3 HARQ DL:Asyncronous 4-15 processes UL: synchronous 1-7 processes DL: Asynchronous, 8 processes UL: synchronous 8 processes Sync signals PSS in #1/#6, SSS in #0/#5 PSS in #0,#5, SSS in #0/#5 Sounding In uplink subframes and/or UpPTS In uplink subframes
- 23. © Ericsson 2010 LTEFDD and LTE TDD › Frame structure for FDD: › Frame structure for TDD – Same 10ms radio frame and same 1ms sub frame as FDD. – Special subframe with three fields of configurable length › DwPTS: truncated downlink subframe for data/control, primary synch signal (PSS) › GP: guard period › UpPTS: Could be used for sounding reference signal or short PRACH. Not for data. 10ms radioframe DL UL 1ms subframe Special subframe (1ms) DwPTS UpPTS fUL/DL DL 1ms subframe fDL UL fUL
- 24. © Ericsson 2010 StockholmCommercial LTE Network Downlink, 10 MHz carrier Mbps Drive test, January 2010, Stockholm
- 25. © Ericsson 2010 COMMERCIALUser Experience Excellent HO performance - 30 km/h, 100 km/h All your internet services - Real-time web, online gaming, VOIP etc Total experience better than ADSL2+ - DL, UL, Latency
- 26. © Ericsson 2010 FDD/TDDLTE Device Introduction FPGA based ASIC LTE + Companion chip ASIC LTE Integrated 2nd Gen. ASIC Modem Prototypes MBR Trial Devices ASIC Modem Pre Com. Multimode LTE Hybrid Mode feature phones IMS/MMTel Smart Phones TDD UETest Tools TDD ASIC Pre Com. • Computers • Consumer Electronics • M2M • Vertical Devices • Cars 2008 2009 2010 2011 - 2012 FPGA Modem Prototypes Platforms Form Factors LTE Modules
- 27. © Ericsson 2010 3GPPLTE releases Overview Rel-8 First LTE release Standard 2008 “Basic features” Mobile broadband Rel-9 2nd LTE release Standard 2009 Voice centric and various enhancements Rel-10 “LTE-advanced” Standard 2010 Fulfill IMT-A requirements Wider spectrum higher peak bitrates, … Release independent (frequency bands, …)
- 28. © Ericsson 2010 3GPPLTE Rel-10 Up to 8x8 DL Extended multi-antenna transmission Reduced latency Uplink multi-antenna transmission Up to 4x4 UL Contiguous Carrier aggregation Non contiguous Carrier aggregation Spectrum A Spectrum B Relaying Enhanced ICIC in HetNet Macro Pico
- 29. © Ericsson 2010 CarrierAggregation Scenarios › Efficient usage of fragmented spectrum non-contiguous component carriers – Different aggregation scenarios have different impact on (UE) RF design Frequency band A Frequency band B › Intra-band aggregation, non-contiguous CCs › Inter-band aggregation Frequency band A Frequency band B Frequency band A Frequency band B › Intra-band aggregation, contiguous Component Carriers (CCs)
- 30. © Ericsson 2010 3GPPcombinations for LTE Carrier aggregation ›Agreed combinations RAN#47 LTE Carrier Aggregation band scenarios Band ”Identifier” Frequencies (MHz) 1 FDD 40 MHz Intra-band contiguous 2100 UL 20+20 MHz, DL 20+20 MHz 1920-1980/2110-2170 40 TDD x MHz Intra-band contiguous 2.3 GHz UL/DL x MHz 2300-2400 1 + 5 FDD x MHz Inter-band Non-contiguous (2100 + 850) x MHz (Band 1) + x MHz (Band 5) 1920-1980/2110-2170 824-849/869-894 To fulfill IMT-A requirement of 40 MHz Note that BW is not yet agreed even though at least 40 MHz is required For starting developing requirements for dual-band CA
- 31. © Ericsson 2010 3GPPband combinations for MC HSDPA HSPA FDD dual band / dual carrier (Rel-9) Band ”Identifier” Frequencies (MHz) 1 + 8 (Reg. 1) IMT Core Band GSM 900 1920-1980/2110-2170 880-915/925-960 2 + 4 (Reg. 2) PCS 1900 AWS 1850-1910/1930-1990 1710-1755/2110-2155 1 + 5 (Reg. 3) IMT Core Band 850 1920-1980/2110-2170 824-849/869-894 HSPA FDD dual band / 3-4 carrier (Rel-10) Band ”Identifier” Variation # of Carriers Frequencies (MHz) 1 + 8 (Reg. 1) (IMT Core Band: GSM 900) (3:1), (2,1) 1920-1980/2110-2170 880-915/925-960 2 + 4 (Reg. 2) (PCS 1900: AWS) (2:2), (2:1), (1:2) 1850-1910/1930-1990 1710-1755/2110-2155 1 + 5 (Reg. 3) (IMT Core Band: 850) (2:2), (2:1) 1920-1980/2110-2170 824-849/869-894 These are RAN agreed combination that should first be addressed as part of 4C-HSDPA HSPA FDD 3-4 carrier single band (Rel-10) Band ”Identifier” Frequencies (MHz) 1 (Reg. 1) IMT Core Band 3 carriers 1920-1980/2110-2170
- 32. © Ericsson 2010 MBSFN– LTE solution for MBMS › SFN = Single Frequency Network › MBMS + SFN = MBSFN › The same signal is transmitted synchronously from all base-stations within the same SFN area – Improves performance higher bitrates possible – The radio access technology of LTE (OFDMA) is especially well suited for SFN (no interference between base stations)
- 33. © Ericsson 2010 Summary ›MBB growing exponentially -> heading towards multi- service network › Constant technological and regulatory innovation needed to keep up with demand in a cost effective manner › Multiple antenna arrays, active antennae, wider bandwidths all contribute to higher end user bandwidths › Practical market and business issues mean introduction will be gradual
Editor's Notes
- #6 Key messages: Includes both 3GPP and CDMA networks. (3GPP is measured data, CDMA is estimated data) Web traffic by mobile PC’s is foreseen to be dominant in the period, driven by the attractiveness of mobile broadband. Web/Mobile PC will grow very strongly and become the dominant application type, including p2p file sharing, music and film downloads etc. The fast-growing applications for data traffic in the large youth segment are web-based services such as YouTube and Facebook. Traffic per subscriber is in a way related to the screen size available – for a 17” laptop it is relevant to download DVD-resolution movies, but for a handheld device with 2,5” screen much less resolution will suffice – and represent a faster download. Note uncertainty of the forecast due to being in early stages of development and lack of reporting from operators, as well as operators ability to limit traffic. Exabyte = 1018 byte
- #25 Drive test data, January 24-26th 2010, Stockholm ”Excal- Accuver” The colors represent ”area binning” over 40m, i.e. each dot represents the average of serveral measurements.
- #26 The total experience is actually well on par or better than ADSL2+ (24 Mbps). The Downlink and uplink speeds are better, and the response time is good – of the order of 26 ms (Bredbandskollen actually sometimes report 11ms).
- #31 Agreed RAN#47 document on CA way forward ftp://ftp.3gpp.org/tsg_ran/TSG_RAN/TSGR_47/Docs/RP-100390.zip
- #32 ftp://ftp.3gpp.org/tsg_ran/TSG_RAN/TSGR_47/Documents/RP-100394.zip contains the further reduced number of scenarios that first should be addressed in RAN4 R4-101042 contains the LS with agreement on 3-4 carrier combinations from RAN4 Note that there is a list of Prio 2 scenarios also, that is targeted for after Rel-10 or in Rel-10 if all Prio 1 are done