An Enhanced Frequency Synchronization Algorithm for 3GPP LTE FDD/TDD Dual Mode Downlink Receiver 


Vol. 35,  No. 1, pp. 103-112, Jan.  2010


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  Abstract

In this paper, we propose a coarse and fine frequency synchronization method which is suitable for the 3GPP(3rd Generation Partnership Project) LTE(Long Term Evolution) FDD(Frequency Division Duplexing) / TDD(Time Division Duplexing) dual mode system. In general, PSS(Primary Synchronization Signal) correlation based estimation method and CP(Cyclic Prefix) correlation based tracking loop are applied for coarse and fine frequency synchronization in 3GPP LTE OFDMA(Orthogonal Frequency Division Multiple Access) system, respectively. However, the conventional coarse frequency synchronization method has performance degradation caused by fading channel and squaring loss. Also, the conventional fine frequency synchronization method cannot guarantee stable operation in TDD mode because of signal power difference between uplink and downlink subframe. Therefore, in this paper, we propose enhanced coarse and fine frequency synchronization methods which can estimate more accurately in multi-path fading channel and high speed channel environments and has stable operation for TDD frame structure, respectively. By computer simulation, we show that the proposed methods outperform the conventional methods, and verify that the proposed frequency synchronization method can guarantee stable operation in 3GPP LTE FDD/TDD dual mode downlink receiver.

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  Cite this article

[IEEE Style]

M. Shim, J. Jang, H. Choi, "An Enhanced Frequency Synchronization Algorithm for 3GPP LTE FDD/TDD Dual Mode Downlink Receiver," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 1, pp. 103-112, 2010. DOI: .

[ACM Style]

Myung-Jun Shim, Jun-Hee Jang, and Hyung-Jin Choi. 2010. An Enhanced Frequency Synchronization Algorithm for 3GPP LTE FDD/TDD Dual Mode Downlink Receiver. The Journal of Korean Institute of Communications and Information Sciences, 35, 1, (2010), 103-112. DOI: .

[KICS Style]

Myung-Jun Shim, Jun-Hee Jang, Hyung-Jin Choi, "An Enhanced Frequency Synchronization Algorithm for 3GPP LTE FDD/TDD Dual Mode Downlink Receiver," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 1, pp. 103-112, 1. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880