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UMTS Terminals and Software Radio (Ref. No. 1999/055), IEE Colloquium on

Date 1999

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Displaying Results 1 - 11 of 11
  • Umts Terminals And Software Radio

    Publication Year: 1999, Page(s):0_5 - 0_6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (64 KB)

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  • Combined performance of joint detection with FEC coding for CDMA mobile communication systems

    Publication Year: 1999, Page(s):11/1 - 11/8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (428 KB)

    We determine the combined performance of linear joint detection schemes with FEC coding, and specifically turbo-codes, as proposed for the UMTS third generation mobile communication system. We consider zero-forcing (ZF) decorrelation and minimum mean square error (MMSE) detection, and compare them with the conventional matched filter. Thus we obtain a bound based on the Shannon (1949) bound, and a... View full abstract»

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  • A passive mobile location system for UMTS

    Publication Year: 1999, Page(s):10/1 - 10/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (364 KB)

    The purpose of this research is to assess the performance of a passive location system for UMTS. The system proposed will be located in the mobile receiver and will use TDOA measurements from surrounding base stations to estimate the mobile location. The system will not require to transmit thus will not adversely affect system capacity. Security implications are avoided as the mobile location will... View full abstract»

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  • Implementation aspects of mobile UMTS FDD receivers

    Publication Year: 1999, Page(s):1/1 - 1/6
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (368 KB)

    In this communication, a viable design paradigm for the implementation of highly integrated base band receivers for UMTS FDD is elaborated. Special attention is paid to integrated circuits for mobile terminals, i.e. downlink receivers are considered. After presenting important requirements on integrated downlink UMTS FDD receivers, the transmitter and receiver architectures with respect to hardwar... View full abstract»

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  • Investigation of adjacent channel interference in UTRA-TDD system

    Publication Year: 1999, Page(s):13/1 - 13/6
    Cited by:  Papers (16)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (464 KB)

    Adjacent channel interference in the UTRA-TDD system has been investigated. The problem was approached statistically and a computer simulation model was generated. The impacts of four different interference instances, MS→BS, BS→BS, BS→MS and MS→MS, were considered depending on frame synchronisation. The flexibility of the base station location was analysed with respect to varyi... View full abstract»

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  • Potential of DECT terminal technology for providing low-cost wireless Internet access through Infostations

    Publication Year: 1999, Page(s):12/1 - 12/6
    Cited by:  Papers (2)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (496 KB)

    This paper shows how the Infostation concept can be used to provide high data rate services at low cost. Infostations are small disjoint cells which can use the UMTS unpaired band and be installed by many different operators, allowing fast roll-out of the service provision without the high cost of setting up a dedicated network View full abstract»

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  • Software radio 2G & 3G inner receiver processing

    Publication Year: 1999, Page(s):6/1 - 6/7
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (592 KB)

    Software definable radio technology potentially provides the flexibility and adaptability to support CDMA/TDMA access methods in a single radio/modem architecture. The consistent improvement in integrated circuit technology has resulted in the cost-effective realisation of `digital' single-mode radios, some of the functionality being implemented in software. The software implementation of chip and... View full abstract»

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  • A capacity investigation on UTRA-TDD utilising underused UTRA-FDD uplink resources

    Publication Year: 1999, Page(s):7/1 - 7/6
    Cited by:  Papers (11)  |  Patents (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (464 KB)

    This paper presents an analytical approach to calculate the capacity that a UMTS terrestrial radio access-TDD (UTRA-TDD) pico cell can exploit from underused uplink radio resources of a UTRA-FDD macro cellular overlay. Also, the impact on the UTRA-FDD uplink capacity is evaluated. Underused FDD spectrum is a consequence of a growing demand for an asymmetrical use of communication channels. This st... View full abstract»

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  • RF measurements for UMTS

    Publication Year: 1999, Page(s):4/1 - 410
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (892 KB)

    This paper reviews some aspects of the UMTS/3GPP wide-band CDMA radio access and discusses the associated basic RF and modulation measurements that will be useful to an RF design engineer. We have concentrated on measurements that are particular to CDMA, rather than measurements which are common to all RF communication systems, such as out of band spurious View full abstract»

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  • Breaking the mould: Mobile VCE's approach to collaborative research

    Publication Year: 1999, Page(s):3/1 - 3/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (216 KB)

    The role of collaborative partnership in research activities is generally accepted without question as positive, yet in practice such partnerships take a wide variety of forms. To treat all collaboration as if automatically good should be considered dangerous, in that it can lead to complacency, waste and ultimately poor results. In the field of mobile and personal communications, Mobile VCE has s... View full abstract»

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  • Reconfigurable mobile terminal requirements for third generation applications

    Publication Year: 1999, Page(s):9/1 - 9/6
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (344 KB)

    While Europe is developing UMTS, America is advancing cdma2000. If there is no convergence, there will be two distinct standards. In such a situation it would be useful to have a single terminal with capability of reconfiguration to different standards and services. Here, we identify subsystems in which standards differ or converge, in order to find where there is potential for reconfigurability, ... View full abstract»

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