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  • Indoor antennas for WCDMA systems
    For example, in GSM , repeaters (active and passive ) have been employed for stretching the coverage area from outdoors to indoors.
  • Cost-effective add-drop fiber optic microcell system for CDMA cellular network evolution
    ...for future network evolution (2) Multi-drop function (optional) (3) Autonomous set-up without any instruments (4) Automatic link gain control with calibration (5) Add-drop function (for GSM or IMT-2000 co... ...are very easy) (7) Passive cooling without FAN (8... The add-drop microcell/ repeater is so flexible and lightweight, It can be deployed at sites where...
  • Understanding Telecommunications Networks
    ) 88–9 packet switching and routing 44–6, 181–214 packet switch stream (PSS) 263 pair gain systems 86 Parlay consortium 177 passive optical network (PON) 91–4 PCM multiplex 24-channel... ...281 power feed, local lines 130 power management, GSM systems 235–7 prefix, international... ...real-time protocol (RTP) 202 receiver 1–5 remote concentrator units (RCUs) 12, 143–4 repeater antennas, microwave systems...
  • Dual GSM/DCS-1800 Fibre Radio Repeaters: A Practical Implementation
    Passive combiners and isolators were employed for combining the different RF channels with minimum power losses and... CONCLUSION With this family of optical radio repeaters the applicability of the radio over fibre techniques to the GSM cellular transmission is demonstrated.
  • Techniques to provide coverage and capacity in GSM picocellular environments
    The RF repeaters are specified in the GSM specifications [6]. The RF distributioin system can be passive or active (usually passive).
  • CR4 - Thread: Passive Repeaters for Mobile Telephone or WiFi Signal
    My problem with receiving a normal Wi Fi or Mobile gsm Telephone signal is that I live... I have been researching the possibility for a passive repeater systems ( land flattener)that can bend one or both of these signals down to my house so I can achieve a more economical connection.
  • Decoupled Active/Passive Base Stations for Second Generation Cellular Networks
    Therefore, public opinion may reject repeaters , and they may cause severe interference anyway. Conversely, the decoupled configuration proposed in this work is fully passive in urban environments served by suburban... Section 2 provides an insight into key aspects of GSM systems that are relevant to this paper.
  • WiMax Operator’s Manual
    ...fiber coax network, 19 MDU installation, 124 mesh architecture, 82 multipath reflections, 114 passive optical network, 74... ...110–111 relationship to line of sight and non–line of sight, 112–121 role of repeaters in, 108–109 role... ...grid computing, potential of, 61 growth patterns, projecting relative to cell mapping, 106–107 GSM (Global System for...
  • USSOCOM seeks JTWS expansion
    Variants of the JTWS provide passive detection and single-line-of-bearing measurement against communications and radar... Other requirements relate to GSM telephones that can send digital data from any source; GSM optimization systems that increase range without the use of repeaters ; monitoring systems for 802.11 wireless local-area networks; and small, lightweight "fly-away" satellite antennas (of...
  • http://vbn.aau.dk/ws/files/44357174/IBW_solution.pdf
    [1] Morten Tolstrup, Indoor Radio Planning; A Practical Guide for GSM , DCS, UMTS and HSPA, John Wiley... 48, pp. 658-669, Apr. 2000 [12] Picochip, “The case for home basestations,�? technical white paper, Sep. 2008 [13] ABIresearch, “In-building wireless system, passive and active DAS, repeaters , picocells, and Femtocells,�? research report, 2009 [14] Troels B. Sørensen, “Intelligent...
  • Linear Technology Announces Upconverting Mixer For LTE/Cellular Bands From 400 MHz To 2.7 GHz
    ...improves the performance of wireless equipment including W-CDMA/UMTS, TD-SCDMA, CDMA2000, CDMA, and GSM /EDGE basestations. ...range of communications gear such as cable headend transmitters, microwave broadband transmitters, wireless repeaters , military radios, digital... Compared to alternative passive mixers' more than 8dB of conversion loss, the LT5578's 1.4dB conversion gain...
  • Linear Technology Announces Upconverting Mixer For LTE/Cellular Bands From 400 MHz To 2.7 GHz
    ...improves the performance of wireless equipment including W-CDMA/UMTS, TD-SCDMA, CDMA2000, CDMA, and GSM /EDGE basestations. ...range of communications gear such as cable headend transmitters, microwave broadband transmitters, wireless repeaters , military radios, digital... Compared to alternative passive mixers' more than 8dB of conversion loss, the LT5578's 1.4dB conversion gain...
  • GSM Evolution Towards 3rd Generation Systems
    Within the industry, repeaters have been widely used to speed up roll out and provide coverage in... These problems have been described in the ETSI scenarios document GSM 05.50. To distribute the RF around a building passive coaxial transmission techniques can be used.
  • Inter-operator roaming scenarios for third generation mobile telecommunication systems
    Note: This scenario cannot support either the discrimination of different subscriber classes nor the application of some extra charging policy, since CPN BTSs act as passive repeaters . The first scenario ( GSM - based approach), considers CPNs as autonomous operators.
  • IMS2010 Tech Recap: What You (May Have) Missed
    ...tsunami," as VP of Analog Components David Stasey put it — led Skyworks to develop the SKY67100-396LF and SKY67101-396LF, a pair of new LNAs for boosting receive sensitivity in GSM CDMA, W-CDMA, and LTE base stations and repeaters . ...model extraction based directly upon Maxwell's equations for 3D planar distributed transmission lines, passive circuits, packages, and...