MIMO and Smart Antennas for Mobile Broadband ... - 4G Americas

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4.2.1 TYPICAL TOWER TOP DEPLOYMENTKnowing that about 30% of the deployments are on monopoles, it is worthwhile observing in the followingfigures the typical mechanical constraints atop a monopole where the structure provides a platform forpositioning antennas, Remote Radio Heads, tower top amplifiers, LNAs, feeder cables, and the like,including workspace for installers. These pinwheels are typically placed no closer than 10 feet verticalseparation. Notice the 16 feet of linear separation available for antennas sharing the same “sector face.”For an antenna configuration such as Antenna Configurations (H) or (I) (Div-2X or TX-DIV) in Figure 27,this corresponds to as much as 11 λ at 700 MHz.Figure 45 – Tower top platform with typical dimensions.4G Americas MIMO and Smart Antennas for Mobile Systems – October 2012 – All Rights Reserved66
Figure 46 – Common monopole during installation of antennas. Five different operators are sharing this site.The five operators sharing the leased monopole above all use coaxial cables to connect to theirantennas, and all use similar triangular mounting platforms except for the second from the top. It usesstruts such as those shone in Figure 47, below. Ropes for hoisting the antennas are still visible in thisphoto taken during installation in 2010.4.2.2 TYPICAL MAST DEPLOYMENTOne can see in the photograph in Figure 46 above, that the second platform from the top is not a full“pinwheel” but a cantilevered strut assembly called a “pinwheel” and detailed below in Figure 47. These4G Americas MIMO and Smart Antennas for Mobile Systems – October 2012 – All Rights Reserved67
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MIMO and Smart Antennasfor 3G and 4
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5 Small Cells and HetNet Deployment
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5) Smart antennas provide the next
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toward the ground where the mobile
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could then be tailored using mechan
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Figure 6 - Antenna technology curre
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1.3 INTEGRATED RADIO/ANTENNAFigure
Page 15 and 16: Figure 10 - Link budget comparison
Page 17 and 18: 1.4 ACTIVE ANTENNA SYSTEM (AAS) TEC
Page 19 and 20: and combinations of carriers that c
Page 21 and 22: example, a rural base station with
Page 23 and 24: eamwidth is typically fixed if area
Page 25 and 26: for flat rural scenarios with large
Page 27 and 28: Figure 22, for unprocessed and fitt
Page 29 and 30: Note that this is likely a general
Page 31 and 32: carrier frequency) limited uplink t
Page 33 and 34: These transmission modes are implem
Page 35 and 36: Code Book 1 Layer 2 Layers0 1√2 1
Page 37 and 38: codebook entry 2 will reduce interf
Page 39 and 40: Trans. ModeAntennaConfig. Figure De
Page 41 and 42: It is important to note that the ga
Page 43 and 44: 5 inputs forming the five beams sho
Page 45 and 46: Figure 32 - Downlink bit rate (left
Page 47 and 48: system simulation CDF for the anten
Page 49 and 50: Figure 36 - Calibration network blo
Page 51 and 52: smaller allocation. MU-MIMO transmi
Page 53 and 54: 1D Reconfigurable beam (RET)[tiltin
Page 55 and 56: 3.3 COMPARISON OF RET, 2D, AND 3D R
Page 57 and 58: 3.5 NETWORK OPTIMIZATION VERSUS LOA
Page 59 and 60: Figure 40 - Distribution of the ant
Page 61 and 62: • In this case, reconfigurable be
Page 63 and 64: Figure 43 - Typical cell site showi
Page 65: 4.2 CURRENT DEPLOYMENTSOne operator
Page 69 and 70: Figure 48 - Mast with 11 operators
Page 71 and 72: Figure 50 - Antenna mount with Remo
Page 73 and 74: (a) (b) (c)Figure 52 - Small cell s
Page 75 and 76: 6 MISCELLANEOUS COMMERCIAL AND DEPL
Page 77 and 78: Figure 54AFigure 54BFigure 54 — H
Page 79 and 80: The widely used 65º azimuth antenn
Page 81 and 82: Figure 59 — Mathematical results
Page 83 and 84: Recall that the new rules of thumb
Page 85 and 86: 300∑P60SPR(%) =60P∑300Undesired
Page 87 and 88: --Co-Polarization--Cross-Polarizati
Page 89 and 90: 6.2.2 EFFECTS OF INCORRECT ANTENNA
Page 91 and 92: any third order intermodulation pro
Page 93 and 94: A RRH, also known as a Remote Radio
Page 95 and 96: delays of each transmit path. These
Page 97 and 98: equired at the antenna. In addition
Page 99 and 100: Figure 72 - Photograph of the const
Page 101 and 102: These cables, being a stranded cons
Page 103 and 104: 6.6.5 ADVANTAGES OF REMOTE FIBER FE
Page 105 and 106: Figure 79 - Diplexer.Figure 80 - Tr
Page 107 and 108: Figure 81 - Hybrid combiningcable l
Page 109 and 110: ports. Integrated duplexers route t
Page 111 and 112: Figure 90 - Antenna sharing usingTX
Page 113 and 114: 6.7.13 CONFIGURATIONSThe key elemen
Page 115 and 116: 6.8 INDOOR DISTRIBUTED ANTENNA SYST
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een proven by experiment that a spa
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2600 6 to 9 --Table 7 - Link budget
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Figure 107 - Shannon upper limit ca
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achieve MIMO performance on par wit
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It is evident from the trial that M
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Figure 112 - Example antennas from
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1st Upper Sidelobe Level of the 1st
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H/V TrackingDiscrimination between
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Digital RF converterto LNAPAdigital
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27 Section 7.1 of 3GPP Section 7.1
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51 IST-4-027756 WINNER, D1.1.2 V1.1
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MIMO and Smart Antennas for Mobile Broadband ... - 4G Americas

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