4G RF Planning and Optimization (Day One) - 6 Sep 2014
Full text
(2) Our Product and Service. Learning Center Research and Development. Industrial Product www.floatway.com.
(3) 4G RF Planning & Optimization Training Day 1 Trainer: Jonny Giffly Radio Cellular Technology Network Architecture Cellular Frequency Allocation Multiple Access OFDMA & OFDMA SC-FDMA RF Planning Coverage Planning Capacity Planning Feature based on 3GPP Release Deployment Issue. 3.
(4) 1G to 4G 1G 2G. 3G. 4G.
(5) Wireline and Wireless: Milestones. FTTH 100 Mbps. 100 Mbps. 3.9G. ADSL2+ 25 Mbps. 10 Mbps ADSL 3 to 5 Mbps. 1 Mbps. 100 Kbps. LTE 10 Mbps. 3.5G 3.5G. ADSL 1 Mbps ISDN 128 Kbps. 3G 2.5G. 2G. HSPA+ 5 Mbps. HSDPA 1 Mbps. UMTS 350 Kbps. EDGE 100 Kbps GPRS 40 Kbps. 10 Kbps 2000. 2005. 2010. Mobile throughput follows landline throughput by approx. factor 10.
(6) Wireline and Wireless: Milestones (Update). 6.
(7) Participant Introduction. • Name • Current Job Profile • Previous Experience • Expectations, etc.. Alfin Hikmaturokhman.,MT. 7.
(8) RADIO CELLULAR TECHNOLOGY. 8.
(9) 2G & 3G Radio Technology (Need Update) from GSM to UMTS Evolution: Data rates EDGE Enhanced Data rates for the GSM Evolution •8PSK instead of GMSK (Gaussian Minimum Shift Keying) •Bundling 1-8 channels. GPRS General Packet Radio Services •Packet-switched •New infrastructure (new protocol architecture: prerequisite for UMTS!) •Bundling 1-8 channels. HSCSD High Speed Circuit Switched Data •Circuit-switched •No new network elements: SW modifications •Bundling 1-8 channels. UMTS (WCDMA) Terrestrial Radio Access.
(10) 2G & 3G Radio Technology (Update) from GSM to UMTS Evolution: Data rates. 10.
(11) Wireless Broadband Technology Evolution. WCDMA 3G R99. HSDPA Rel 4. HSDPA Rel 5. DL up to 384 Kbps. DL up to 3.6 Mbps. DL up to 7.2 Mbps. HSPA Rel 6. HSPA+ Rel 7. HSPA+ Rel 8. 4G (WiMAX and LTE). DL up to 14 Mbps, UL up to 5.8 Mbps. DL up to 21 Mbps, UL up to 8.3 Mbps. DL up to 35 Mbps, UL up to 8.3 Mbps. DL up to 48 Mbps, UL up to 24 Mbps.
(12) Wireless Broadband Technology Evolution (Update). 12.
(13) Towards to 4G (Adding Slide). 13.
(14) Towards to 4G (Cont-1). 14.
(15) Towards to 4G (Cont-2). 15.
(16) NETWORK ARCHITECTURE. 16.
(17) 3GPP architecture evolution towards flat architecture Release 6. Release 7 Direct Tunnel. GGSN SGSN. Release 7 Direct Tunnel and RNC in NB. GGSN SGSN. RNC NB. Control Plane. GGSN SGSN. Release 8 SAE and LTE SAE GW MME. RNC. RNC NB. NB. User Plane. eNB.
(18) 3GPP architecture evolution towards flat architecture (Update1). 18.
(19) 3GPP architecture evolution towards flat architecture (Update2). 19.
(20) LTE Network Architecture UMTS 3G: UTRAN. GGSN. EPC. MME S-GW / P-GW. MME S-GW / P-GW. SGSN. RNC. RNC eNB. eNB. eNB NB. NB. NB. NB. UMTS : Universal Mobile Telecommunications System UTRAN : Universal Terrestrial Radio Access Network GGSN : Gateway GPRS Support Node GPRS: General Packet Radio Service SGSN : Serving GPRS Support Node RNC: Radio Network Controller NB: Node B. eNB E-UTRAN. EPC ; Evolved Packet Core MME : Mobility Management Entity S-GC : Serving Gateway P-GW : PDN Gateway PDN : Packet Data Network eNB : E-UTRAN Node B / Evolved Node B E-UTRAN ; Evolved-UTRAN.
(21) Simplified LTE network elements and interfaces 3GPP TS 36.300 Figure 4: Overall Architecture EPC. MME S-GW / P-GW. MME S-GW / P-GW. S1. eNB. eNB. X2 eNB. eNB E-UTRAN. EPC ; Evolved Packet Core MME : Mobility Management Entity S-GC : Serving Gateway P-GW : PDN Gateway PDN : Packet Data Network eNB : E-UTRAN Node B / Evolved Node B E-UTRAN ; Evolved-UTRAN. eNB = All radio interface-related functions MME = Manages mobility, UE identity, and security parameters. S-GW = Node that terminates the interface towards E-UTRAN. P-GW = Node that terminates the interface towards PDN Simple Architecture Flat IP-Based Architecture Reduction in latency and cost Split between EPC and E-UTRAN Compatibility with 3GPP and non-3GPP technologies.
(22) System architecture for E-UTRAN only network.
(23) System architecture for 3GPP access networks.
(24) CELLULAR FREQUENCY ALLOCATION. 24.
(25) 2G Frequency Allocation in Indonesia GSM 900. DCS 1800.
(26) 3G Frequency Allocation in Indonesia Frequency Spectrum Update March 2013.
(27) 3G Frequency Allocation in Indonesia Frequency Spectrum Plan September 2013.
(28) 900 (CDMA & GSM) and 2100 Mhz Frequency (3G WCDMA) Allocation in Indonesia (Update) Uplink Frequency per operator 890. 895. 900. 907.5. ISAT. 915. TSEL. 825. XL. ESIA. 830. 835. FLEXI. 840. Fren. 845. Star1. Downlink Frequency per Operator 935. 940. 945. 952.5. ISAT TSEL Before bidding in 2100 Mhz Frequency Block 2100 Mhz Operator. 1. 2. HCPT Axis. 960. 870. XL. 5. 6. 875. ESIA. FLEXI. 7. 8. 3. 4. Axis. Tsel. Tsel HCPT Isat. 4 Tsel. 5 Tsel. 880. 885. Fren. Star1. 9. 10. 11. 12. Isat. XL. XL. New (Tsel). New (XL). 8 XL. 9 XL. 10 XL. 11 Axis. 12 Axis. After bidding in 2100 Mhz Frequency Block 2100 Mhz 1 2 3 Operator HCPT HCPT Tsel. 6 Isat. 7 Isat. Note: The winner for bidding are PT Telkomsel and PT XL Axiata.
(29) 1800 and 2100 Mhz Frequency (3G WCDMA) Allocation in Indonesia (Update) Uplink Frequency per operator 1710. 1717.5. XL. 1722.5. ISAT. 1730. TSEL. 1735. 1740. NTS. 1745. 1750. TSEL. 1755. 1760. 1765. 1770. ISAT. 1775. TSEL. 1780. 1785. HCPT. Downlink Frequency per Operator 1805. 1812.5. XL. 1817.5. ISAT. 1825. 1830. TSEL. 1835. NTS. 1840. 1845. TSEL. 1850. 1855. 1860. 1865. ISAT. 1870. TSEL. 1875. 1880. HCPT. Before bidding in 2100 Mhz Frequency Block 2100 Mhz Operator. 1. 2. HCPT Axis. 3. 4. 5. 6. 7. Axis. Tsel. Tsel HCPT Isat. 4 Tsel. 5 Tsel. 8. 9. 10. 11. 12. Isat. XL. XL. New (Tsel). New (XL). 8 XL. 9 XL. 10 XL. 11 Axis. 12 Axis. After bidding in 2100 Mhz Frequency Block 2100 Mhz 1 2 3 Operator HCPT HCPT Tsel. 6 Isat. 7 Isat. Note: The winner for bidding are PT Telkomsel and PT XL Axiata.
(30) 4G RF Planning & Optimization Training Day 1 Trainer: Jonny Giffly Radio Cellular Technology Network Architecture Cellular Frequency Allocation Multiple Access OFDMA & OFDMA SC-FDMA RF Planning Coverage Planning Capacity Planning Feature based on 3GPP Release Deployment Issue. 30.
(31) OFDM . Single Carrier Transmission (e.g. WCDMA). . Orthogonal Frequency Division Multiplexing.
(32) OFDM Concept: Mengapa OFDM . Sinyal OFDM (Orthogonal Frequency Division Multiplexing) dapat mendukung kondisi NLOS (Non Line of Sight) dengan mempertahankan efisiensi spektral yang tinggi dan memaksimalkan spektrum yang tersedia.. . Mendukung lingkungan propagasi multi-path.. . Scalable bandwidth : menyediakan fleksibilitas dan potensial mengurangi CAPEX (capital expense). 32.
(33) OFDM Concept: NLOS Performance. 33.
(34) OFDM Concept : Mutipath Propagation. . Sinyal-sinyal multipath datang pada waktu yang berbeda dengan amplitudo dan pergeseran fasa yang berbeda, yang menyebabkan pelemahan dan penguatan daya sinyal yang diterima.. . Propagasi multipath berpengaruh terhadap performansi link dan coverage.. . Selubung (envelop) sinyal Rx berfluktuasi secara acak. 34.
(35) OFDM Concept: FFT. •. Multi-carrier modulation/multiplexing technique. •. Available bandwidth is divided into several subchannels. •. Data is serial-to-parallel converted. •. Symbols are transmitted on different subcarriers 35.
(36) OFDM Concept: IFFT. Basic ideas valid for various multicarrier techniques: •. OFDM: Orthogonal Frequency Division Multiplexing. •. OFDMA: Orthogonal Frequency Division Multiple Access 36.
(37) OFDM Concept: Single-Carrier Vs. OFDM. Single-Carrier Mode: •. Serial Symbol Stream Used to Modulate a Single Wideband Carrier. •. Serial Datastream Converted to Symbols (Each Symbol Can Represented 1 or More Data Bits). OFDM Mode: •. Each Symbol Used to Modulate a Separate Sub-Carrier. 37.
(38) OFDM Concept: Single-Carrier Vs. OFDM. Single-Carrier Mode. OFDM Mode. •. Dotted Area Represents Transmitted Spectrum. •. Solid Area Represents Receiver Input. •. OFDM mengatasi delay spread, multipath dan ISI (Inter Symbol Interference) secara efisien sehingga dapat meningkatkan throughput data rate yang lebih tinggi.. •. Memudahkan ekualisasi kanal terhadap sub-carrier OFDM individual, dibandingkan terhadap sinyal single-carrier yang memerlukan teknik ekualisasi adaptif lebih kompleks.. 38.
(39) OFDM Concept: Motivation for Multi-carrier Approaches . Multi-carrier transmission offers various advantages over traditional single carrier approaches: ◦ Highly scalable ◦ Simplified equalizer design in the frequency domain, also in cases of large delay spread ◦ High spectrum density ◦ Simplified the usage of MIMO. . Weakness of multi-carrier systems: ◦ Increased peak to average power ratio (PAPR). 39.
(40) OFDM Concept: Peak to Average Power Ratio (PAPR).
(41) Tipe Sub-Carrier OFDM. Data Sub-carriers. •. Membawa simbol BPSK, QPSK, 16QAM, 64QAM. Pilot Sub-carriers •. Untuk memudahkan estimasi kanal dan demodulasi koheren pada receiver.. Null Subcarrier •. Guard Sub-carriers. •. DC Sub-carrier 41.
(42) Guard Interval (Cyclic Prefix). •. Untuk mengatasi multipath delay spread. •. Contoh pada WiMAX Guard Interval (cyclic prefix) : 1/4, 1/8, 1/16 or 1/32. 42.
(43) OFDM Transceiver. 43.
(44) OFDM & OFDMA OFDM. OFDMA. •. Semua subcarrier dialokasikan untuk satu • user. •. Misal : 802.16-2004 •. Subcarrier dialokasikan secara fleksibel untuk banyak user tergantung pada kondisi radio.. Misal : 802.16e-2005 dan 802.16m. 44.
(45) Difference between OFDM and OFDMA . OFDM allocates users in time domain only. . OFDMA allocates users in time and frequency domain.
(46) OFDMA time-frequency multiplexing.
(47) LTE Downlink Physical Layer Design: Physical Resource The physical resource can be seen as a time-frequency grid. •. LTE uses OFDM (Orthogonal Frequency Division Multiplexing) as its radio technology in downlink. •. In the uplink LTE uses a pre=coded version of OFDM, SC-FDMA (Single Carrier Frequency Division Multiple Access) to reduced power consumption. 47.
(48) LTE Downlink Resource Grid. •. Suatu RB (resource block) terdiri dari 12 subcarrier pada suatu durasi slot 0.5 ms.. •. Satu subcarrier mempunyai BW 15 kHz, sehingga menjadi 180. kHz per RB.. 48.
(49) Parameters for DL generic frame structure. Bandwidth (MHz). 1.25. 2.5. 5.0. Subcarrier bandwidth (kHz). 15. Physical resource block (PRB) bandwidth (kHz). 180. Number of available PRBs. 6. 12. 25. 10.0. 15.0. 20.0. 50. 75. 100. 49.
(50) Parameters for DL generic frame structure Transmission BW. 1.25 MHz. 2.5 MHz. 5 MHz. Sub-frame duration. 0.5 ms. Sub-carrier spacing. 15 kHz. 10 MHz. 15 MHz. 20 MHz. Sampling frequency. 192 MHz (1/2x3.84 MHz). 3.84 MHz. 7.68 MHz (2x3.84 MHz). 15.36 MHz (4x3.84 MHz). 23.04 MHz (6x3.84 MHz). 30.72 MHz (8x3.84 MHz). FFT size. 128. 256. 512. 1024. 1536. 2048. (4.69/72) x 6, (5.21/80) x 1. (4.69/108) x 6, (5.21/120) x 1. (4.69/144) x 6, (5.21/160) x 1. OFDM sym per slot (short/long CP). CP length (usec/ samples). 7/6. Short. (4.69/9) x 6, (5.21/10) x 1. Long. (16.67/32). (4.69/18) x 6, (5.21/20) x 1. (16.67/64). (4.69/36) x 6, (5.21/40) x 1. (16.67/128). (16.67/256). (16.67/384). (16.67/512). 50.
(51) LTE – Spectrum Flexibility . LTE physical layer supports any bandwidth from 1.4 MHz to 20 MHz in steps of 180 kHz (resource block). Current LTE specification supports a subset of 6 different system bandwidths. All UEs must support the maximum bandwidth of 20 MHz..
(52) E-UTRA channel bandwidth.
(53) Case Study LTE Signal Spectrum (20 MHz case). •. The LTE standard uses an over-sized LTE. The actual used bandwidth is controlled by the number of used subcarriers. 15 kHz subcarrier spacing is the constant factor!. •. 18 MHz out of 20 MHz is used for data, 1 MHz on each side is used as guard band.. •. LTE used spectrum radio = 90%. •. WiMAX used spectrum radio = 82%. 53.
(54) TDD & FDD. •. Time Division Duplex (TDD). •. Frequency Division Duplex (FDD). •. Durasi Frame : 2.5 - 20ms. 54.
(55) Generic LTE Frame Structure type 1 (FDD) Tf = 307200 x Ts = 10 ms Tslot = 15360 x Ts = 0.5 ms. •. Untuk struktur generik, frame radio 10 ms dibagi dalam 20 slot yang sama berukuran 0.5 ms.. •. Suatu sub-frame terdiri dari 2 slot berturut-turut, sehingga satu frame radio berisi 10 subframe.. •. Ts menunjukkan unit waktu dasar yang sesuai dengan 30.72 MHz.. •. Struktur frame tipe-1 dapat digunakan untuk transmisi FDD dan TDD.. 55.
(56) LTE Frame Structure type 1 (FDD). • •. •. 2 slots form one subframe = 1 ms For FDD, in each 10 ms interval, all 10 subframes are available for downlink transmission and uplink transmissions. For TDD, a subframe is either located to downlink or uplink transmission.The 0th and 5th subframe in a radio frame is always allocated for downlink transmission. 56.
(57) Downlink LTE Frame Structure type 1 (FDD).
(58) Generic LTE Frame Structure type 2 (TDD). •. Struktur frame tipe-2 hanya digunakan untuk transmisi TDD.. •. Slot 0 dan DwPTSdisediakan untuk transmisi DL, sedangkan slot 1 dan UpPTS disediakan untuk transmisi UL. 58.
(59) LTE Frame Structure type 2 (TDD). 59.
(60) Mobile WiMAX Frame Structure. 60.
(61) LTE Frame Structure type 2 (TDD).
(62) DL Peak rates for E-UTRA FDD/TDD frame structure type 1. Assumptions Unit Requirement 2x2 MIMO 4x4 MIMO. Downlink 64 QAM Signal overhead for reference signals and control channel occupying one OFDM symbol Mbps in 20 MHz b/s/Hz 100 5.0 172.8 8.6 326.4 16.3.
(63) UL Peak rates for E-UTRA FDD/TDD frame structure type 1 Assumptions. Unit Requirement 16QAM 64QAM. Uplink Single TX UE Signal overhead for reference signals and control channel occupying 2RB Mbps in 20 MHz b/s/Hz 50 2.5 57.6 2.9 86.4 4.3.
(64) Peak rates for E-UTRA TDD frame structure type 2 Downlink Assumptions. 64 QAM, R=1. Uplink Single TX UE, 64 QAM, R=1. Mbps Mbps b/s/Hz in 20 MHz in 20 MHz 50 Requirement 100 5.0 2x2 MIMO in DL 142 7.1 62.7 4x4 MIMO in DL 270 13.5. Unit. b/s/Hz 2.5 3.1.
(65) SC-FDMA. 65.
(66) LTE Uplink Transmission Scheme: SC-FDMA . . . . . Pemilihan OFDMA dianggap optimum untuk memenuhi persyaratan LTE pada arah downlink, tetapi OFDMA memiliki properti yang kurang menguntungkan pada arah Uplink. Hal tsb terutama disebabkan oleh lemahnya peak-to-average power ratio (PAPR) dari sinyal OFDMA, yang mengakibatkan buruknya coverage uplink. Oleh karena itu, skema transmisi Uplink LTE untuk mode FDD maupun TDD didasarkan pada SC-FDMA, yang mempunyai properti PAPR lebih baik. Pemrosesan sinyal SC-FDMA memiliki beberapa kesamaan dengan pemrosesan sinyal OFDMA, sehingga parameter-parameter DL dan UL dapat diharmonisasi. Untuk membangkitkan sinyal SC-FDMA, E-UTRA telah memilih DFT-spread-OFDM (DFT-s-OFDM).. 66.
(67) OFDMA and SC-FDMA . The symbol mapping in OFDM happens in the frequency domain.. . In SC-FDMA, the symbol mapping is done in the time domain.. . Appropriate subscriber mapping in the frequency domain allows to control the PAPR.. . SC-FDMA enable frequency domain equalizer approaches like OFDMA 67.
(68) How does a SC-FDMA signal look like? . Similar to OFDM signal, but… ◦ …in OFDMA, each sub-carrier only carries information related to one specific symbol, ◦ …in SC-FDMA, each sub-carrier contains information of ALL transmitted symbols..
(69) SC-FDMA parameterization (FDD and TDD) LTE FDD •Same as in downlink. TD-LTE •Usage of UL depends on the selected UL-DL configuration (1 to 8), each configuration offers a different number of subframes (1ms) for uplink transmission, •Parameterization for those subframes, means number of SC-FDMA symbols same as for FDD and depending on CP, 69.
(70) Improved UL Performance SC-FDMA compared to ordinary OFDM. Single-carrier transmission in uplink enables low PAPR that gives more 4 dB better link budget and reduced power consumption compared to OFDM. 70.
(71) LTE Uplink SC-FDMA Physical Layer Parameters. 71.
(72) 4G RF Planning & Optimization Training Day 1 Trainer: Jonny Giffly Radio Cellular Technology Network Architecture Cellular Frequency Allocation Multiple Access OFDMA & OFDMA SC-FDMA RF Planning Coverage Planning Capacity Planning Feature based on 3GPP Release Deployment Issue. 72.
(73) A Game of Avoiding Extremes.
(74) Pendimensian Jaringan dalam Analisis Techno-Economics. Cakupan sel. Dimensi suatu jaringan Kapasitas sel.
(75) Memaksimalkan Coverage dan Capacity Memaksimalkan coverage. . Pilih teknologi akses Gunakan band frekuensi yang rendah Tingkatkan tinggi antena Naikan daya pancar. . Kurangi persyaratan kualitas. . . Memaksimalkan kapasitas Pilih teknologi akses Perbesar band frekuensi Gunakan re-use frequency . Kurangi persyaratan C/I Rendahkan tinggi antena Gunakan fitur software Gunakan antena adaptif.
(76) LTE Dimensioning Definition LTE Spectrum Usage Parameters LTE Duplex Frequency Frequency DL Frequency UL Bandwidth Modulation &Coding Schemes Scheduling. Value FDD 2100 MHz (BAND 1) 2110-2170 MHz 1920-1980 MHz 10 MHz (50 Resource Block) AMC (QPSK,16QAM,64QAM) & ½ ,¾ Proportional Fair.
(77) LTE Dimensioning Definition LTE eNodeB Configuration. Parameters. Value. PTx (dbm). 46 dbm. Gain Antena Tx. 18 dbi. Jumper Cable. 0.2 db/m. Feeder Cable. 0,4db/km. Rx Sensitivity (dbm). -100 dbm. Gain Antena Rx. 18 dbi. TMA / MHA. 13 db. Sector. 3.
(78) Sistem Antena Base Station (BTS). Gain antenna, Beam antenna. Feeder Loss. Tx Power Receiver Sensitivity Noise Figure, dll.
(79) LTE Nominal Planning.
(80) COVERAGE PLANNING. 80.
(81) Link Budget path loss. TXer Txer component. RXer Rxer component. link budget component.
(82) LINK BUDGET Gain Sistem. Margin Sistem. Radius Sel. Daya Pancar. Fading Margin. Model Propagasi. Gain Antena. Interference Margin. Frekuensi Operasi. Sensitivitas Penerima. Loss penetrasi bangunan. Tinggi Antena pemancar/ penerima. SNR threshold tiap modulasi. Gain/loss sistem lainnya. Jarak Referensi.
(83) Dasar Pemahaman Link Budget.
(84) Link Budget: Up Link . . . Frequency range, MHz. Mobile parameters - Tx PA output (max) - Cable loss - Antenna gain -------- (Subsc. ERP max, dB) Environmental margins - Fading margin - Environmental attenuation - Cell overlap -------------------- (dB). • Base station parameters - Rx ant. gain Rx jumper loss - Rx tower top amp gain (net) - Rx cable loss - Rx ligthning arrester loss. - Rx duplexer loss - Rx diversity gain - Rx coding gain - Rx sensitivity ------- Up-link budget, dB.
(85) Link Budget: Down Link • Frequency range, MHz • Base station parameters - Tx PA output power - Tx combiner loss - Tx duplexer loss - Tx ligthning arrester loss - Tx cable loss - Tx jumper loss - Tx tower top amp gain - Tx antenna gain. (Cell ERP, dB). • Environmental margins - Tx diversity gain - Fading margin - Environmental attenuation - Cell overlap (dB) • Mobile parameters - Antenna gain - Rx diversity gain - Antenna cable loss - Coding gain - Rx sensitivity ---------- Down-link budget, dB.
(86) Maximum Allowed Path Loss.
(87) Uplink Budget.
(88) MAPL Calculation (Uplink Link) Maximum Allowed Path Loss Uplink Link Budget LTE Unit Kbps. Value 1024. Info. dBm dB dB. 23 0 0. a b c. d. EIRP. dBm. 23. a+b+c. Receiver - eNodeB e. Noise Figure f. Thermal Noise g. SINR h. Receiver Sensitivity i. Interference Margin j. TMA Gain k. Rx antenna gain l. Loss System. dB dBm dB dBm dB dB dBi dB. 2.2 -107.13 -1.95 -106.88 1.81 2 18 0.4. e k*T*B g e+f+g i j k l. MAPL. dB. 147.67. d-h-i+j+k-l. Data Rate Transmitter - UE a. Tx Power b. Tx Antenna Gain c. Body Loss. • MAPL = 147.67 • Radius = 0.99 Km.
(89) MAPL Calculation (Downlink Link) Maximum Allowed Path Loss. Data Rate Transmitter - eNodeB a. Tx Power b. Tx Antenna Gain c. Loss System d. EIRP. Downlink Link Budget LTE Unit Value kbps 1000. Info. dBm dB dB dBm. 46 18 3 61. a b c a+b+c. Receiver - UE e. Ue Noise Figure f. Thermal Noise g. SINR h. Receiver Sensitivity i. Interference Margin. dB dBm dB dBm dB. 7 -102.7 -5 -100.7 3. e k*T*B g e+f+g i. j. Control Channel Overhead k. Rx antenna gain l. Body Loss. dB dBi dB. 1 0 0. j k l. MAPL. dB. 157.7. d-h-i-j+k-l.
(90) ENGINEERING MODEL Example of WCDMA RLB for Voice Link budget of AMR 12.2 kbps voice service (120 km/h, in-car users, Vehicular A type channel, with soft handover).
(91) Example of WCDMA RLB for Data Link budget of 144 kbps real-time data service (3 km/h, indoor user covered by outdoor BS, Vehicular A type channel, with soft handover).
(92) Link Budget Tipikal.
(93) Link Budget Tipikal.
(94) Link Budget UPLINK. DOWNLINK. MA. https://sites.google.com/site/lteencyclopedia/lte-radio-link-budgeting-and-rf-planning/lte-link-budget-comparison.
(95) Contoh Perhitungan Link Budget.
(96) COVERAGE PLANNING MODEL PROPAGASI. 96.
(97) Model Propagasi Suatu model propagasi menggambarkan hubungan redaman jarak rata-rata yang terjadi yang sekaligus dapat digunakan untuk perhitungan radius/jangkauan sel. Model propagasi bergantung pada: . ◦ Enironment: urban, rural, dense urban, suburban, open, forest, sea… ◦ Jarak ◦ Frequency ◦ Kondisi atmosfer ◦ Indoor/outdoor.
(98) Contoh Model Propagasi Free space Wakfish-Ikegami Okumura-Hatta Longley-Rice Lee .
(99) Propagation Model . LTE – 700 MHz ◦ Okumura-Hatta Lp 69,55 26,16 log f – 13,82 log hB - CH [44,9 – 6,55 log hB] log d. . LTE – 2100 MHz ◦ Cost 231-Hatta. Lp 46,3 33,9 (logfc ) 13,82 loghT a(hR ) (44,9 6,55loghT )logd CM. . LTE – 2600 MHz ◦ SUI Lp 109.78 47.9 log (d/100).
(100) Nominal Planning By Coverage . PROPAGATION MODEL : COST231-Hata. L 46,3 33,9 logfc 13,82 loghT a(hR ) (44,9 6,55loghT )logd CM . Element: Frequency 150 - 1500 MHz. A B 69.55 26.16. 1500 - 2000 MHz. 46.3. 33.9. 0 dB. For Rural and suburban. 3 dB. For Dense Urban and Urban. CM =.
(101) Pathloss SUI Lp = 109.78 + 47.9 log (d/100). 47.9 log( d / 100) Lp 109.78 log( d / 100) ( Lp 109.78) / 47.9 (d / 100) 10( Lp109.78) / 47.9 d 100 x10( Lp109.78) / 47.9 (157.7 109.78) / 47.9 d 100 x10 1.00042 d 100x10 d 1000.966 meters.
(102) COVERAGE PLANNING CELL RADIUS. 102.
(103) Radius Calculation. L = 2,6 d2. L = 1,3 . 2,6 . d2. For 2-sectoral. L = 1,95 . 2,6 . d2. For 3-sectoral.
(104) Radius Calculation For Omni directional. For trisectoral. L = 2,6 d2. L = 1,95 . 2,6 . d2. L 2.6 x (1) L 2.6 km2. 2. L 1.95 x 2.6 x (1) L 5.07 km2. 2.
(105) Number of eNodeB . Urban Area (3 sector) ◦ total area 242.928 km2 ◦ NeNodeB 242.928 / 5.07 ◦ N eNodeB 48.
(106) Nominal Planning By Coverage Balance Site Radius R = 0.98 km Coverage Site = 4.98 KM² Coverage Area = 125 KM². . • 25 Site. L = 2,6 d2. L = 1,3. 2.6 . d2. For 2-sectoral L = 1,95 . 2.6 . d2. For 3-sectoral.
(107) Quiz : LTE Nominal Planning Sebuah operator seluler berencana untuk menggelar jaringan Lte di 5 kota besar di Indonesia yaitu : Jakarta, Bandung, Yogyakarta, Surabaya dan Denpasar. Apabila diketahui luas daerah kota besar tersebut, hitung berapa jumlah eNodeB 3 sektor yang dibutuhkan pada setiap kota? (f = 1800 MHz) Kota. Luasan*. Jakarta. 662,33 km2. Bandung. 167,67 km2. Yogyakarta. 32,5 km2. Surabaya. 374,78 km2. Denpasar. 123,98 km2. *Sumber : wikipedia.
(108) CAPACITY PLANNING. 108.
(109) Nominal Planning By Capacity: Number of user Un = Uo (1 + gf)n. Uo is Uou or Uosub Where:. UoN = a x b x d x N • • • • • • • • •. Un Uo a b d N gf n u/sub. : num of user on year ‘n’ : initial num of user (based on urban/sub-urban) : percent of cellular user (%) : penetration of operator A (%) : Percent of LTE user : num of civilian in the object area : num of user growth factor : planned year : urban or sub-urban penetration (%). Uou = u x UoN Uosub = sub x UoN.
(110) Nominal Planning By Capacity: Number of user Ex : • Population • Cellular penetration • LTE penetration • LTE provider A penetration Population. = 1445892 people = assumption 80% = assumption 10 % = assumption 50 % 1445892. people. Customer cellular (80%). 1156713. user. Customer LTE (10%). 115671. user. Customer LTE provider A (50%). 57835. user. User prediction in 5th years • U5 = 57835 ( 1 + 0.05 )5 assumption fp=5% = 73814 user.
(111) Nominal Planning By Capacity: User Density Cu = Un/ Lu. Lu = L x u. • Lu • L. : urban area wide : object area wide. • Cu : Urban area density • Csub : sub-urban area density. Ex : • urban area penetration. = assumption 40 %. => Urban area wide (Lu). : 242,928 km2. => Cu = 44288 / 242,928. = 182,31232 user/km2.
(112) Nominal Planning By Capacity: Traffic user prediction.
(113) Nominal Planning By Capacity : Traffic user prediction - Avg. Traffic user / BH = 10 MB - Avg. Traffic user / Sub = 10 MB / 3600 s *8 bit = 22.75 Kbps - Total Offered Traffic = 73814 * 22.75 = 1679268.5 Kbps. = (1680 Mbps).
(114) Nominal Planning By Capacity . Calculate Cell by Capacity Element Cell Capacity Sector enodeB Capacity Congestion Control Total Offered Traffic No. Of Site. . No. Of Site = 25 Site. Value 18 3 54 80 1680 24.88889. Unit Mbps sector Mbps % Mbps Site.
(115) Nominal Planning By Capacity Number of User Un = Uo (1 + gf)n. Uo is Uou or Uosub. UoN = a x b x d x N Where: . . . . . Un Uo a b d N gf n u/sub. : num of user on year ‘n’ : initial num of user (based on urban/sub-urban) : percent of cellular user (%) : penetration of operator A (%) : Percent of LTE user : num of civilian in the object area : num of user growth factor : planned year : urban or sub-urban penetration (%). Uou = u x UoN Uosub = sub x UoN.
(116) Customer Prediction Parameter Nominal Planning By Capacity Ex : Population Cellular penetration LTE penetration LTE provider A penetration Population. = 1445892 people = assumption 80% = assumption 10 % = assumption 50 % 1445892. people. Customer cellular (80%). 1156713. user. Customer LTE (10%). 115671. user. Customer LTE provider A (50%). 57835. user. User prediction in 5th years U5 = 57835 ( 1 + 0.05 )5 assumption fp=5% = 73814 user.
(117) Example User Calculation Ex : . urban penetration = assumption 60 % suburban penetration = assumption 40 % Urban user = 73814 x 60 % = 44288 user Suburban user = 73814 x 40 % = 29525 user.
(118) User Density Lu = L x u. . Lu : urban area wide Lsub : sub-urban area wide L : object area wide. Cu = Un/ Lu. . Lsub = L x sub. Cu : Urban area density Csub : sub-urban area density. Csub = Un/Lsub.
(119) Example User Density Calculation Ex : urban area penetration suburban area penetration Openarea. = assumption 40 % = assumption 40 % = assumption 20 %. => Urban area wide (Lu) Sub-urban area wide (Lsub). : 242,928 km2 : 242,928 km2. . => Cu. = 44288 / 242,928. = 182,31232 user/km2. Csub = 29525 / 242,928 = 121,54155 user/km2.
(120) Services and Type . Services (Rb) ◦ VoIP : 64 kbps ◦ FTP : 1000 kbps ◦ Video : 384 kbps. . Type (c) ◦ Building : 50 % ◦ Vehicular : 30 % ◦ Pedestrian : 20 %.
(121) Penetration (p) per type per service e.g: BUILDING VoIP usage penetration = 0.5 BUILDING FTP usage penetration = 0.4 PEDESTRIAN Video usage penetration = 0.3 . BHCA (B) per type per service e.g: BUILDING VoIP usage penetration = 0.008 BUILDING FTP usage penetration = 0.009 PEDESTRIAN Video usage penetration = 0.008 . Call duration (h) per type per service (ms) e.g: BUILDING VoIP usage penetration = 60 BUILDING FTP usage penetration = 50 PEDESTRIAN Video usage penetration = 50 .
(122) Penetrasi User (p). Building 0,5 0,3 0,4. Voip Video FTP. type. Vehicula Pedestrian r 0,5 0,2 0,3 0,2 0,4 0,3. call duration (h). voip. video. ftp. building. 60. 40. 50. pedestrian. 60. 50. 70. vehicular. 60. 40. 80. service. net user bit rate (Rb). VoIP. 64000. FTP. 1000000. Video. 384000. BHCA (B) Service. Building. Pedestrian. Vehicular. Voip. 0,008. 0,008. 0,009. Video. 0,007. 0,008. 0,009. FTP. 0,009. 0,008. 0,008.
(123) OBQ (Offered Bit Quantity) . VoIP OBQT = cT x Cu;T x pT x RbVoIP x BT x hT. . FTP OBQT = cT x Cu;T x pT x RbFTP x BT x hT. . Video OBQT = cT x Cu;T x pT x RbVid x BT x hT Note: if T= pedestrian, then “OBQT “ is pedestrian OBQ, “BT “ is pedestrian BHCA, etc. T : Type (Building; Vehicular; Pedestrian).
(124) OBQ cont’d OBQ total = OBQVoIP + OBQFTP + OBQVideo Where: OBQVoIP. = OBQvehicular + OBQbuilding + OBQ pedestrian. OBQFTP. = OBQvehicular + OBQbuilding + OBQ pedestrian. OBQVideo = OBQvehicular + OBQbuilding + OBQ pedestrian.
(125) OBQ cont’d OBQ Service. Building. Pedestrian. Vehicular. Voip. 1,400158616. 0,5600634. 0,252029. Video. 2,940333094. 5,2505948. 1,008114. FTP. 16,40810878. 8,1675919. 7,000793. ∑. 20,74860049. 13,97825. 8,260936. OBQtotal= 20,74860049 + 13,97825 + 8,260936 = 42,98779.
(126) Site Calculation . Site (L) L. = (50.4 x 3) / OBQtotal. = (50.4 x 3) / 42,98779 = 3,5172778. km2. 50.4 Mbps ---> (asumption: using 64 QAM 1/1, BW = 10 MHz). . Radius (d) d. = (L / 2.6 / 1.95) ^ 0.5 = (3,5172778 / 2.6 / 1.95) ^ 0.5 = 0,832912489 km.
(127) Site Calculation Con’t . Number of eNodeB (M) M = Lu / L = 242,928 km2 / 3,5172778 km2 = 69,06704366 We use “Lu” JUST IN CASE we count urban capacity only.
(128) Perhitungan Dimensioning Capacity: Traffic volume based approach . Hitung dimensioning capacity (subscriber/site) dengan pendekatan traffic volume pada sistem LTE dengan 3 sector/site dengan performansi minimum (a) dan sistem LTE dengan performansi maksimum(b); dengan kondisi: ◦ Busy hour average loading is 50%. ◦ Busy hour is assumed to carry 15% of the daily traffic ◦ Offering Monthly Package to subscriber: 5 GBps 128.
(129) Contoh Perhitungan Dimensioning Capacity: Traffic volume based approach. Cell capacity (biasanya dalam Mbps) Rubah cell capacity ke GBps (1k = 1024, 1Byte = 8 bits). Rubah ke satuan waktu (detik, jam, waktu) Perhatikan statistic/prediksi/asumsi traffic volume yang ada, seperti: Busy hour average loading is 50%. Busy hour is assumed to carry 15% of the daily traffic Hitung kemampuan dalam setiap sector dan site. . 129.
(130) Contoh Perhitungan Dimensioning Capacity: Traffic volume based approach. 130.
(131) Quiz 1 . Hitung dimensioning capacity (subscriber/site) dengan pendekatan traffic volume pada sistem LTE pada kondisi di contoh perhitungan dengan performansi minimum (a) dan sistem LTE dengan performansi maksimum(b). 131.
(132) Contoh Perhitungan Dimensioning Capacity Data rate based approach. 132.
(133) Peak capacity of LTE . . LTE cell will provide 100 Mbps of throughput while in reality can only do 50 Mbps, the operator will be short by 50% of capacity in the access network resulting in poor user experience (e.g. slow download, blocking, etc.) and will be 50% over the required capacity for backhaul in which case it’s investment in capacity that’s sitting idle. This is why it is important to get capacity expectations right. Peak capacity of LTE is the maximum possible capacity which in reality can only be achieved in lab conditions. To understand the calculations below, one needs to be familiar with the technology 133.
(134) Review on Data Rate (MIMO 2X2) 2×5 MHz LTE system.: Number of resource elements (RE) in a subframe (a subframe is 1 msec): 12 Subcarriers x 7 OFDMA Symbols x 25 Resource Blocks x 2 slots = 4,200 REs Calculate the data rate assuming 64 QAM with no coding (64QAM is the highest modulation for downlink LTE): 6 bits per 64QAM symbol x 4,200 Res / 1 msec = 25.2 Mbps The MIMO data rate is then 2 x 25.2 = 50.4 Mbps.. 134.
(135) Overhead Overhead related to control signaling such as channels, reference & synchronization signals, and coding. The channels such as: . ◦ ◦ ◦ ◦ ◦. PSS (primary synchronization signal) SSS (secondary synchronization signal) PDCCH (Physical Downlink Control Channel) PBCH(Physical Broadcast Channel) PCFICH (Physical Control Format Indicator Channel) ◦ PHICH (Physical Hybrid-ARQ Indicator Channel) 135.
(136) Overhead Estimation (1/2) 20MHz band, so the number of PRBs in the frequency domain is: PRB no = 100 1 OFDM symbol for control region (for PHICH, PCFICH and PDCCH) in each subframe, . ◦ number of OFDM symbols per subframe for user plane data (PDSCH) is: No OFDMSymbols = 13 (for normal CP). . SISO case (one antenna),. ◦ number of Cell RS for the PDSCH per 2PRBs is: NoRS = 6. the number of subcarriers per PRB is: NoSubcarriers = 12 The number of RE (resource elements) available for carrying PDSCH per 2PRBs is: NoREs = NoOFDMSymbols * NoSubcarriers – NoRS = 13 * 12 – 6 = 150 . 136.
(137) Overhead Estimation (2/2) . . . . The number of RE (resource elements) : 150 The number of REs for subframe is: NoREPDSCH = NoREs * PRBno = 150 * 100 = 15000 For peak datarate we use 64QAM, which gives the number of bits per RE: bitsRE = 6 The number of bits for the whole subframe is: NoBitsPDSCH = NoREPDSCH * bitsRE = 15000 * 6 = 90 000 The number of subframes in one sec is: NoSFs = 1000 [SFs/Sec] The max throughput then (raw, ie. without FEC) is: RawThrpt = NoBitsPDSCH [bits/SF] * NoSFs [SFs/Sec] = 90 000 * 1000 = 90 000 000 bits/sec = 90 Mbits/s If we add then the typical FEC rate for good channel conditions of: FECrate = 5/6 We end up at: PHYThrpt = RawThrpt * FECrate = 90 Mbits/s * 5/6 = 75Mbit/s. 137.
(138) Overhead Estimation in percentage (MIMO 2X2) . . . . PDCCH channel can take 1 to 3 symbols out of 14 in a subframe. Assuming that on average it is 2.5 symbols, the amount of overhead due to PDCCH becomes 2.5/14 = 17.86 %. Downlink RS signal uses 4 symbols in every third subcarrier resulting in 16/336 = 4.76% overhead for 2×2 MIMO configuration The other channels (PSS, SSS, PBCH, PCFICH, PHICH) added together amount to ~2.6% of overhead The total approximate overhead for the 5 MHz channel is 17.86% + 4.76% + 2.6% = 25.22%. The peak data rate is then 0.75 x 50.4 Mbps = 37.8 Mbps. Note that the uplink would have lower throughput because the modulation scheme for most device classes is 16QAM in SISO mode only. 138.
(139) Overhead Estimation in percentage (MIMO 4X4). There is another technique to calculate the peak capacity which I include here as well for a 2×20 MHz LTE system with 4×4 MIMO configuration and 64QAM code rate 1: Overhead at Downlink: . ◦ Pilot overhead (4 Tx antennas) = 14.29% ◦ Common channel overhead (adequate to serve 1 UE/subframe) = 10% ◦ CP overhead = 6.66% ◦ Guard band overhead = 10%. . Downlink data rate = 4 x 6 bps/Hz x 20 MHz x (1-14.29%) x (1-10%) x (1-6.66%) x (1-10%) = 298 Mbps 139.
(140) Sample of Features LTE (Typical) 2015Q2 eRAN8.1 (3GPP Release11/12). 2014Q2 eRAN7.0 (3GPP Release 11). Radio & Performance Convergence. Smart DRX. 4x4 MIMO. 4x4 MIMO (Trial). Enhanced PDCCH FeICIC Soft Split Resource Duplex (for 8T8R) Coordinated Scheduling (Cloud BB) 15 Mhz (8T8R) Evolved Wireless Local Loop (eWLL) Access Solution. Enhanced Intra-LTE Load Balancing. Radio & Performance. VoLTE. Voice & Service. Networking&Transport& Security LTE Advanced. eMBMS Scheduling based on Max Bit Rate Guaranteed Bit Rate for Internet Service Security Level Setting (OSS) Ipsec redundancy CA for Downlink 2CC from Multiple Carriers. Voice&Service. VoLTE Enhancement O&M. Intra-LTE MLB based on interference CA (DL 3/4 CC). LTE Advanced. CA (UL 2CC) TDD+FDD CA 2CC CA+4x4 MIMO Inter-eNB DL CoMP (Cloud BB). 140.
(141) Feature 4G Smartphone. Requirement. Smartphone. Other. VOLTE. License ID. License Description. LLT1TDDRX01. Dynamic DRX. LLT1TCCIRC01 LLT1TRAOP01. Control Channel IRC RACH optimization. Remarks Reduce signalling auto reconnect/idle mode Interference rejection control RACH optimization for access control. LLT1TEAC01 LLT1TUMIMO02 LLT1TCPRICP01 LLT1TIEUC01 LLT1TDCEP01 LLT1TILLB02 LLT1TMUBF01. Enhanced Admission Control UL 2x4 MU-MIMO CPRI Compression Intra-eNodeB UL CoMP Intra-eNodeB DL CoMP in Adaptive Mode(per Cell)(TDD) Adaptive Inter-Cell Interference Coordination Intra-LTE Load Balancing(TDD) MU-Beamforming(per Cell)(TDD). Admission control for rejection Increase UL throughput by 2x4 MU MIMO Dual carrier for 15MHZ UL Interference combining DL Interference combining Adaptive ICIC Dual carrier Increase throughput for cell edge. LLT1TVSPS01 LLT1TROHC01 LLT1TTTIB01. VoIP Semi-persistent Scheduling RObust Header Compression TTI Bundling. VOLTE scheduling VOLTE scheduling VOLTE scheduling. 141.
(142) Transformation of Mobile Broadband Devices. 142.
(143) Further Evolution in Mobile Broadband Devices. 143.
(144) LTE Advanced Brings Different Dimensions of Improvements – Most Gain from HetNets. 144.
(145) PCI Planning There are 504 PCI available: 1. For Macro eNodeB we use 0-464 (155 site’s) 2. Equipment trial reserve 465-494 for PCI Planning (10 site’s) 3. IBS/ Indoor eNodeB will use 495-503 (3 site’s). 145.
(146) TA (Tracking Area) Planning. 146.
(147) TA Planning Principle. TAC = Tracking Area Code (1~65533, and 65535) (0 and 65534 are reserved by 3GPP) TAI = Tracking Area ID = MCC + MNC + TAC. For MCC and MNC below is temporary until get official value from government MCC = 460 MNC= 10 TAL = Tracking Area List Mutual agree on 10 June 2013, with operator Z. 1 TAL = up to 16 TAC. TAL value range: 0~ 65534 Max number of TALs per USN = 20000.
(148) One TAL = One TAC . One TAL is same with one TAC, with this design when the UE in idle condition then move to another TAC it will be generate TAU to report MME where is last position for this UE. When there is downlink packet data need to be deliver for that UE, MME can easily to find latest position.. S-GW. Internet. MME. TAU. TAC 2 TAU Procedure. The tracking area update (TAU) procedure is triggered if one of the following conditions is met: . The UE detects that the current TA does not exist in the TA list on the UEregistered network.. . It is a periodic TAU.. . The TAU procedure is triggered during a handover procedure.. . On an EPS network, the basic unit of location management is TA List. A TA List consists of one or multiple TAs. A TA list prevents a UE from initiating the TAU procedure frequently. In USN1.1, a TA is regarded as a TA List by default.. TAC 1. TAC 4 TAC 3.
(149) One TAL = Multiple TAC . One TAL contains multiple TAC, with this design when UE in idle condition move to different TAC under one TAL there is no TAU. When MME want to deliver downlink packet data for that UE MME will send to latest TAC where the UE located. If the UE is unreachable MME will try to paging another TAC under one TAL until found. This design will take a time compare with the previous design.. S-GW. Internet. MME. UE Under move One to TAL new TAL no need needTAU TAU. TAL 1. TAC 2. TAC 1. TAC 4 TAC 3. TAL 2. TAC 6. TAC 5. TAC 8 TAC 7. Last TAC is 8 but UE move to TAC 7, MME will try paging another TAC under TAL2.
(150) TAL Planning For Jabodetabek area TAL planning, HUAWEI Propose for First Media that:. eNB Distribution on TAL and TAC. . Capacity Per TAL is 46 eNB if using 1 ESU board .. 109. . HUAWEI assume there are 1200 BBU for 3603 sites ( 1 BBU consist of maximum 3 site). 108. . . The paging configuration in One TAL consist of multiple TAC ( FM proposed 1 TAL minimum 3 TAC based on area type ) Based on geographic consideration we get 9 TAL. 3 16 5 41 5. 107. 32 4. 106. TAL. ◦. 35 4. 105. 40. 3. 104. To define the boundary of TAL, we follow this consideration: 1. main road or Highway which is have high Mobility 2. distribution of user 3. Capacity on TAC Maximum 46 eNB. 41 3. 103. 41 3. 102. 45 3. 101. 37 0. 10. Number of TAC per TAL. 20. 30. 40. Avg. number of eNB per TAC. 50.
(151) TAL & TAC Planning 1 TAL consist of multiple TAC we can use 5 letters of number using this rule ABC&XY For example in FM 1 TAL split become 3 TAC. We have define 9 TAL, and 1 TAL minimum 3 TAC. Our suggestion is using 3 letters of number, range value for TAC name from 101 to 109.
(152) TAL Planning Distribution Map 108. 105. 104 101 103. 102. 106. TAL. 107. 109.
(153) DEPLOYMENT PLANNING. 153.
(154) LTE Deployment Options: Backhaul.
(155) Bandwidth Efficiency 700 MHz. LTE. Available Licensed Bandwidth (MHz). 6+6. Usable Bandwidth (MHz). 5+5. Spectral efficiency, downlink (bps/Hz). 1.67. Spectral efficiency, uplink (bps/Hz). 0.89. Average Throughput per 3-sector site, downlink (Mbps). 25.05. Average Throughput per 3-sector site, uplink (Mbps). 13.35. Loading Factor, downlink. 70%. Loading Factor, uplink. 60%. * Performance data is averaged from various vendors’ claims as of 2011..
(156) Traffic Forecasting: Subscriber Traffic Model 700 MHz Traffic per Subscriber per Month (GB). LTE 30. Downlink Traffic (%). 70%. Uplink Traffic (%). 30%. Hours in the Busy Period per Day Percent of Daily Traffic Carried in Busy Period. 4 25%. Downlink Busy Hour Traffic per Subscriber. 97 kbps. Uplink Busy Hour Traffic per Subscriber. 42 kbps. Subscribers Supported per Sector. 60. Subscribers Supported per Base Station (3 sectors). 180. * Performance data is averaged from various vendors’ claims as of 2011..
(157) Estimate of Investment 700 MHz Access Network 3-Sector Single-5MHz-Carrier Macro Cell Investment per Subscriber Core Network Broadband Data-Only Core Network Incremental for VoIP Core Network CPE Terminals Desktop/Fixed CPE USB Dongle * Pricing data is averaged from various vendors’ proposals as of 2011.. LTE $55,000 $306. $3,000,000 $1,400,000 $395 $200.
(158) Pricing - Example Network #1 700 MHz Base Stations Subscribers Supported Total Investment Investment per Subscriber. LTE 50 9000 $9,827,500 $1,092. * Pricing data is averaged from various vendors’ proposals as of 2011..
(159) Pricing - Example Network #2 700 MHz Base Stations Subscribers Supported Total Investment Investment per Subscriber. LTE 100 18,000 $15,255,000 $848. * Pricing data is averaged from various vendors’ proposals as of 2011..
(160) Pricing - Example Network #3 700 MHz Base Stations Subscribers Supported Total Investment Investment per Subscriber. LTE 200 36,000 $26,110,000 $725. * Pricing data is averaged from various vendors’ proposals as of 2011..
(161) LTE Deployment Business Consideration: When & How?.
(162) Relative Adoption of Technologies. 3.9G. 3G. 2G. Rysavy Research projection based on historical data..
(163) The reuse of existing 2G and 3G sites for NGMN will keep site cost flat.
(164) LTE Deployment Scenario.
(165) Femtocell @ LTE. 165.
(166) Femtocell Motivation. 166.
(167) Most Mobile Data Use Occurs Indoors. Source: Informa’s Mobile Access at Home Report 167.
(168) End of Training Day One.
(169)
Related documents
Although in this work we have not tested different keels, we have applied our method to a Chimera problem in such a way that the computational domain is composed of two
C qPCR gene expression analysis of inflammatory genes Il 1b, Tnf, Il6, Nos2, and Nfkbia by qPCR in mixed cortical cultures (left, in vitro) incubated with EVs isolated from CSF
PG9 with internal terminals Connessioni Connections Grado di protezione Degree of protection Angolo di azione Angle of action Temperatura di esercizio Operating temperature 24 V
Relevant studies: political science, public and business administration, law, land, mining, environmental science, ecology, fisheries, wildlife habitat management, computer
In accordance with the theoretical discussion and conclusion above, debt capital’s effects on member commitment in agricultural cooperatives will be measured by five indicators
excitation functions predicted using the ldmodel 1 and ldmodel 4 in the TALYS-1.9 code are found to have a good agreement with the cross-section data measured by Sakane 34 in
Taking account of the improving success rate and the growing option value of conversion rights, revisions to the cost-benefit model used by the agency reduced the grant-equivalent
Adam4adam.com. In doing this, another goal is to explore the parameters of sexual racism theory and their impact on sexual health behaviors and negotiations. Sexual Racism