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

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Figure 11 – Dual column 4RX and UL Beam-FormingFigure 12 – Three sector configuration example: Base band unit with three unitsFigure 12 shows a typical configuration for WCDMA with 2 × 2 MIMO for Band 1. One IntegratedRadio/Antenna unit is deployed in each sector and a common base band unit with a DU for WCDMAinside provides base band processing and back-haul.4G Americas MIMO and Smart Antennas for Mobile Systems – October 2012 – All Rights Reserved16
1.4 ACTIVE ANTENNA SYSTEM (AAS) TECHNOLOGYFigure 13 – The evolution of base station architectures toward more tower-top electronics, leading to the WideBand ActiveAntenna System (WB-AAS).A most general approach to Digital Signal Processing controlled smart antennas, that permits not justthe typical horizontal beamforming but also vertical beamforming, is made possible by these emergingactive antenna arrays as detailed in Figure 13. This scheme permits amplitude and phase weights tobe applied to vertically stacked antenna elements, such as the 8 co-polarized elements per columnshown below (total of 32 elements). In contrast to standard passive base station antennas, where acoaxial cable distribution network divides and feeds power to each element, individual transceivers,composed of radio modems, amplifiers, and filters are located directly next to the radiating antennaelements. An integrated implementation, shown in the left side of the following figure has thesetransceivers, modems, amplifiers and filters integrated together as diagrammed below.4G Americas MIMO and Smart Antennas for Mobile Systems – October 2012 – All Rights Reserved17
Page 1 and 2: MIMO and Smart Antennasfor 3G and 4
Page 3 and 4: 5 Small Cells and HetNet Deployment
Page 5 and 6: 5) Smart antennas provide the next
Page 7 and 8: toward the ground where the mobile
Page 9 and 10: could then be tailored using mechan
Page 11 and 12: Figure 6 - Antenna technology curre
Page 13 and 14: 1.3 INTEGRATED RADIO/ANTENNAFigure
Page 15: Figure 10 - Link budget comparison
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 and 66: 4.2 CURRENT DEPLOYMENTSOne operator
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Figure 46 - Common monopole during
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Figure 48 - Mast with 11 operators
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Figure 50 - Antenna mount with Remo
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(a) (b) (c)Figure 52 - Small cell s
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6 MISCELLANEOUS COMMERCIAL AND DEPL
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Figure 54AFigure 54BFigure 54 — H
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The widely used 65º azimuth antenn
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Figure 59 — Mathematical results
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Recall that the new rules of thumb
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300∑P60SPR(%) =60P∑300Undesired
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--Co-Polarization--Cross-Polarizati
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6.2.2 EFFECTS OF INCORRECT ANTENNA
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any third order intermodulation pro
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A RRH, also known as a Remote Radio
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delays of each transmit path. These
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equired at the antenna. In addition
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Figure 72 - Photograph of the const
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These cables, being a stranded cons
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6.6.5 ADVANTAGES OF REMOTE FIBER FE
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Figure 79 - Diplexer.Figure 80 - Tr
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Figure 81 - Hybrid combiningcable l
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ports. Integrated duplexers route t
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Figure 90 - Antenna sharing usingTX
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6.7.13 CONFIGURATIONSThe key elemen
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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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