This paper proposes a novel EWF method for LTE signal transmission. Unlike the classical common public radio interface (CPRI) where the in-phase and quadrature (I/Q) waveforms and the control words (CWs) are transmitted as a binary sequence in the time domain, the proposed scheme transmits the analog I/Q waveforms and quadrature amplitude modulation (QAM) signals that contain CWs via frequency domain multiplexing (FDM) synchronously. The bandwidth of the proposed method is reduced by 45% compared with the digital CPRI compression method in the literature. Furthermore, we propose a novel asymmetric single tone pilot based joint I/Q imbalance, frequency offset and phase noise suppression method for the proposed system. We experimentally demonstrate the EWF transmission of one 20 MHz LTE signals with a CPRI equivalent data rate of 1.228 Gbps as a proof of the concept. The test error vector magnitude (EVM) of the OFDM-64QAM LTE signals is below 2% from -52dBm to -38dBm received power and the CWs are recovered without error. This EWF demo can be extended to support CPRI equivalent data rates of n× 1.228Gbps by aggregating more I/Q waveforms and QAM signals in the frequency domain.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    An Efficient Wireless Fronthaul (EWF) Method for LTE Signal Transmission


    Beteiligte:
    Cai, Meng (Autor:in) / Liu, Qiao (Autor:in) / Jiang, Hongli (Autor:in) / Cao, Ping (Autor:in) / Hong, Cheng (Autor:in) / Wei, Jianying (Autor:in)


    Erscheinungsdatum :

    2017-06-01


    Format / Umfang :

    489408 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Efficient Mobile Fronthaul via DSP-Based Channel Aggregation (Invited Paper)

    Liu, X. / Zeng, H. / Chand, N. et al. | British Library Online Contents | 2016



    Transport Network Design for FrontHaul

    Sehier, Philippe / Bouillard, Anne / Mathieu, Fabien et al. | IEEE | 2017