Lte World Summit 2010

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Lte World Summit 2010

  1. 1. Mobile Broadband du Fixed network Services du WiMAX network for the Dubai Metro*du UAE Nationwide Mobile Network du outdoor Mesh -WiFi du Pre-WiMAX Point-to -Point & Point-to -MultipointLinks to Site Offices du WiFi Hotspots* Winner of 2009 most innovative mobility project by Cisco Networkers event 3
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  3. 3. Broadband downloads 2x data capacity Multicarrier- 2x Multicarrier 20 MHz and uploads, QoS >2x voice capacity data rates to all enhancements deploymentsRel-99 Rel-5 Rel-6 Rel-7 Rel-8 Rel-9 Beyond Rel-9 (HSDPA) (HSUPA)WCDMA HSPA HSPA+ (HSPA Evolved) DL: 1.8-14.4 Mbps DL: 28 Mbps DL: 42 Mbps1 DL: 84 Mbps2 DL: 100+ Mbps3 UL: 5.7 Mbps UL: 11 Mbps UL: 11 Mbps UL: 23 Mbps2 UL: 23+ Mbps 1R8 will reach 42 Mbps by combining 2x2 MIMO and HOM (64QAM) in 5 MHz, or by utilizing HOM (64QAM) and multicarrier in 10 MHz. 2R9 combines multicarrier and MIMO in 10 MHz to reach 84 Mbps peak rates. Uplink multicarrier double the uplink peak data rate to 23 Mbps. 3Releases beyond R9 may expand multicarrier to 20 MHz and utilize combinations of multicarrier and MIMO to reach data rates exceeding 100 Mbps.Note: Estimated commercial dates 2009 2010 2011 2012+ Created 06/10/09 Source: QUALCOMM white paper “HSPA+ for Enhanced Mobile Broadband” 5
  4. 4. 84M Single Carrier – 5MHz Dual Carrier – 10MHz 56M 42M 42M 28M 28M 21M14.4MHSDPA 64QAM MIMO 64QAM+MIMO DC DC+64QAM DC+MIMO DC+MIMO+64QAM HSPA+ Improves Peak Rates while providing Higher QoS and Customer Loyalty 6
  5. 5. HSDPA 7.2 HSDPA 14.4 Option A Option B Option C Step 1 HSDPA 21M HSDPA 21M HSDPA 28M 64QAM 64QAM MIMO Step 2 HSDPA 42M HSDPA 42M HSDPA 42 M 64QAM + DC 64QAM + MIMO 64QAM + MIMO Step 3 HSDPA 84M DC + 64QAM + MIMOChoice depends on available frequency, operator’s strategy and terminal’s maturity. 7
  6. 6.  Double throughput by using double streams per User  Only need 1 carrier frequency 28.8Mbps 2x2 MIMO 14.4MbpsData stream 1Data stream 2 R5 HSDPA R7 MIMO MIMO has better throughput gains close to Node-B & cell centre. 8
  7. 7. Use 2 adjacent carriers to transmit simultaneously data to the same user Dual cells covers the same geographical area Anchor Carrier 5MHz 5MHz Frequency 1 Supplementary Carrier Frequency 2 frequencey1 frequencey2 f Two frequencies are Downlink peak rate adjacent double 28.8M/42MbpsFull use of the two cells resource by Joint Scheduling and Load Balance 9
  8. 8. Criteria/Evolution DC MIMO Peak Rate 42Mbps in 10Mhz band 42Mbps in 5Mz band Coverage Performance Better --Throughput Performance -- Better Latency Performance Better --Service Type (Full Buffer) -- Better Service Type (Burst) Better -- CAPEX Investment Low High 10
  9. 9. Notes: 1) PA3 and macro cell modes are supposed. 2) Users are uniformly distributed. 2) As can be observed, the DC gain is more pronounced at low load (25% at 2 users/sector) compared to high load (7% at 16 users/sector). 3) DC improvement comes from frequency diversity and better statistical multiplexing The throughput gain of DC will fast decrease with the cell users increasing Source of first graph: R1-082094, “Text proposal for TR on simulation results” (initial submission), Qualcomm Europe, 3GPP TSG-RAN WG1 #53bis, May 2008. 11
  10. 10. Cell Radius Dense Urban Urban Suburb Rural MIMO+64QAM 0.33 0.5 1.7 3.9 DC+64QAM 0.43 0.63 2.2 5.3Remark: Cell edge throughput 1024kbps Source: du’s Partner Simulation 12
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  12. 12.   Instantaneous down/up link peak data rates of at least 100/50 Mbps within 20 MHz allocation, respectively.  Down/up link: average user throughput per MHz, (3-4)/(2-3) times Release 6 HS(D/U)PA, respectively.  Mobility shall be maintained at speeds 120km /h-350km/h (or even up to 500 km/h depending on the frequency band)  Spectrum flexibility: scalable to operate in 1.4, 2.5, 5, 10, 15 and 20Mhz allocations: Uplink and downlink, paired (FDD mode) and unpaired (TDD mode) Source: GSA “Evolution to LTE - an overview, December 2009 14
  13. 13. Broadband downloads 2x data capacity Multicarrier- 2x Multicarrier 20 MHz and uploads, QoS >2x voice capacity data rates to all enhancements deployments Rel-99 Rel-5 Rel-6 Rel-7 Rel-8 Rel-9 Beyond Rel-9 (HSDPA) (HSUPA) WCDMA HSPA HSPA+ (HSPA Evolved) DL: 1.8-14.4 Mbps DL: 28 Mbps DL: 42 Mbps1 DL: 84 Mbps2 DL: 100+ Mbps3 UL: 5.7 Mbps UL: 11 Mbps UL: 11 Mbps UL: 23 Mbps2 UL: 23+ Mbps (10 MHz ) (10 MHz ) Leverages new, wider Multicarrier > 20 MHz and TDD spectrum deployments Rel-8 Rel-9 Rel-10 1 R8 will reach 42 Mbps by combining 2x2 MIMO and HOM (64QAM) in 5MHz, or by utilizing HOM (64QAM) and multi carrier in 10 MHz. LTE LTE 2 R9 and beyond may utilize combinations of multi carrier and MIMO to reach 84 Mbps peak rates. Similarly, uplink multi carrier Advanced can double the uplink data rates. 3 Peak rates for 10 and 20 MHz FDD using 2x2 MIMO, standard supports 4x4 MIMO enabling peak rates of 300 Mbps. TDD DL: 73 – 150 Mbps3 DL: 300+ Mbs4 rates are a function of up/downlink asymmetry 4Peak rates can reach or exceed 300 Mbps by aggregating multiple 20 UL: 36 – 75 Mbps3 UL: 150+ Mbps4 (10 MHz – 20 MHz) ( Beyond 20 MHz) MHz carriers as considered for LTE Advanced (LTE Rel-10).Note: Estimated commercial dates 2009 2010 2011 2012+ Created 08/18/09 Source: QUALCOMM white paper “LTE release 8 and beyond” 15
  14. 14. Frequency Band Cell Radius (km) LTE 2600Mhz 0.95 LTE 2100Mhz 1.16Remark: Urban scenario, cell edge throughput 2000kbps Cell Radius 18% 2100M 2600MSource: du’s Partner Simulation 16
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  16. 16. HSPA+ LTE 172Mbps@20Mhz  (2x2)   84Mbps@10MHz   326.4Mbps@20MHz(4x4)   8.4bps/Hz  (Peak  for  DC+  MIMO   8.6bps/Hz  (Peak  for  2x2  MIMO)   +  64QAM)   1.424/0.6  (MIMO+64QAM)   1.717/0.99  (2x2  MIMO)   ExisHng   Need  to  apply  or  buy   SoRware  or  minor  hardware   Newly  build   upgrade   Full  system  bandwidth   Variable  up  to  full  system  bandwidth   Ideal  for  MIMO  due  to  signal  Requires  significant  compuHng   representaHon  in  the  frequency  domain  power  due  to  signal  being   and  possibility  of  narrowband  allocaHon  defined  in  the  Hme  domain  and   to  follow  real-­‐Hme  variaHons  in  the  on  top  of  spreading     channel   18
  17. 17. Cell Radius in DL (Km) Scenario Dense urban Urban Suburban RuralHSPA 2.1GHz 0.38 0.57 2.34 4.62LTE 2.1GHz 0.49 0.78 3.18 5.33LTE 2.6GHz 0.4 0.64 2.58 4.68DL Cell Radius Comparison. DL Cell edge throughput 512kbps, Indoor Coverage, 90% Cell Loading 19
  18. 18. Cell Cell Radius (Km) Loading (%) 10 20 30 40 50 60 70 80 90 100 % UL 0.8 0.77 0.74 0.71 0.67 0.63 0.59 0.52 0.43 0.02 98% DL 0.79 0.75 0.71 0.67 0.62 0.58 0.54 0.49 0.45 0.43 45%HSPA+ 2.1GHz,Urban scenario, indoor coverage, 128kbps/512kbps in UL/DL
  19. 19. Cell Loading Cell Radius (Km) (%) 10 20 30 40 50 60 70 80 90 100 % UL 0.52 0.51 0.5 0.49 0.48 0.47 0.46 0.45 0.44 0.42 19% DL 0.79 0.77 0.76 0.74 0.72 0.71 0.68 0.66 0.64 0.61 23%LTE 2.6GHz,Urban scenario, Indoor coverage, 128kbps/512Kbps in UL/DL. 21
  20. 20. •  Cell Radius shrinks as a function of number of users at cell edge meeting the 512 Kbps Throughput   Only 6 users can achieve the throughput and the cell radius shrinks to 200m only 22
  21. 21. UL Average Cell Scheme Remark Throughput HSUPA 10ms 2.1Mbps CAT5,urban,UL cell load 75% HSUPA 2ms 2.3Mpbs CAT6,urban,UL cell load 75% HSUPA 16QAM 3.0Mbps CAT7,urban,UL cell load 90% LTE 10MHz 9.7Mpbs Urban,2.6GHz LTE 20MHz 19.8Mbps Urban,2.6GHz DL Average Cell Scheme Remark Throughput HSPA(16QAM) 6.0Mpbs Urban, bandwidth 5MHz HSPA+(64QAM) 6.41Mbps Urban,bandwidth 5MHz HSPA+(MIMO) 6.98Mpbs Urban,bandwidth 5MHzHSPA+(MIMO+64QAM) 7.12Mbps Urban,bandwidth 5MHz HSPA+(DC+16QAM) 6.43Mpbs Urban,bandwidth 5MHz HSPA+(DC+64QAM) 6.89Mbps Urban,bandwidth 5MHz LTE 10MHz 16.92Mpbs Urban,2.6GHz LTE 20MHz 34.34Mbps Urban,2.6GHz 23
  22. 22.   Assumptions: - Urban Scenario - HSPA+ 1.  Scenario 1: 1st carrier R99+HSAP(5 codes), 2nd carrier HSPA+(15 codes) 2.  Scenario 2: 1st carrier HSPA+ (15 codes), 2nd carrier HSPA+(15 codes) - LTE bandwidth: 10 & 20 MHz - Traffic Model assumption: data user 50kbps, voice user 0.025Elr - HSPA+ can support CS and PS service, LTE only support PS service. subscribers Number of supported Capacity/Cell supported/Cell simultaneous users HSPA 2.1GHz 22Elr(CS AMR12.2) 880 voice subscriber + 186 100K (scenario 1) 9.3Mbps(PS HSPA+) Broadband subscriber 13 Mbps:2 native HSPA HSPA 2.1GHz + carriers, no voice with 260 Broadband subscriber 142K (scenario 2) DC-HSPA+ LTE 10MHz @ at 16.92 Mbps 338 Broadband subscriber 185K 2.6 GHz LTE 20MHz @ 34.7Mbps 694 Broadband subscriber 380 K 2.1GHz LTE 20 @ 34.3Mbps 686 Broadband subscriber 376K 2.6GHz 24
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