A Design of Initial Cell Searcher for 3GPP LTE Downlink System 


Vol. 33,  No. 7, pp. 733-742, Jul.  2008


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  Abstract

In 3GPP LTE downlink system, initial cell search is essential for mobile station to connect to base station. In order to obtain information of the base station, the mobile station detects frame timing, frequency offset, and cell identification using primary synchronization channel (PSC) and secondary synchronization channel (SSC), which are defined in downlink OFDMA specification. In this paper, we analyze various detection algorithms in practical environment of inter-cell-interference, frequency offset, and multi-path fading channel and propose the optimal algorithm. Simulation results show that partial correlation method (for PSC acquisition) and interference cancellation method (for SSC detection) are the most superior algorithms among the applicable algorithms. Employ these two algorithms for receiver design, initial cell search is performed with 99% probability within 70 ms in the channel environment considered.

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  Cite this article

[IEEE Style]

K. Shin, S. Im, K. Ok, H. Choi, "A Design of Initial Cell Searcher for 3GPP LTE Downlink System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 7, pp. 733-742, 2008. DOI: .

[ACM Style]

Kyung-Chan Shin, Se-Bin Im, Kwang-Man Ok, and Hyung-Jin Choi. 2008. A Design of Initial Cell Searcher for 3GPP LTE Downlink System. The Journal of Korean Institute of Communications and Information Sciences, 33, 7, (2008), 733-742. DOI: .

[KICS Style]

Kyung-Chan Shin, Se-Bin Im, Kwang-Man Ok, Hyung-Jin Choi, "A Design of Initial Cell Searcher for 3GPP LTE Downlink System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 7, pp. 733-742, 7. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880