An Enhanced AGC Structure and P-SCH Detection Method for Initial Cell Search in 3GPP LTE FDD/TDD Dual Mode Downlink Receiver 


Vol. 35,  No. 3, pp. 302-313, Mar.  2010


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  Abstract

In this paper, we propose an enhanced AGC (Automatic Gain Control) structure and P-SCH detection method for initial cell search in 3GPP (3rdGenerationPartnershipProject) LTE (Long Term Evolution) FDD (Frequency Division Duplex) / TDD (Time Division Duplex) dual mode system. Since TDD frame structure consists of uplink subframe and downlink subframe, conventional AGC structure causes P-SCH detection performance degradation by increase of AGC variation due to signal power difference between uplink and downlink subframe. Also, P-SCH detection performance is degraded by distortion of P-SCH correlation characteristic in frequency offset and multipath fading channel environments. Therefore, we propose an AGC structure which can minimize P-SCH detection performance degradation with stable operation in 3GPP LTE TDD mode as well as FDD mode. Also we propose a P-SCH detection method which can reduce distortion of correlation chareteristics in frequency offset and multipath fading environments and obtain good P-SCH detection performance. Simulation results show that the proposed AGC structure and P-SCH detection method have stable AGC operation and excellent P-SCH detection performance for 3GPP LTE TDD / FDD dual mode downlink receiver in various channel environments.

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  Cite this article

[IEEE Style]

M. Chung, J. Jang, H. Choi, "An Enhanced AGC Structure and P-SCH Detection Method for Initial Cell Search in 3GPP LTE FDD/TDD Dual Mode Downlink Receiver," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 3, pp. 302-313, 2010. DOI: .

[ACM Style]

Myung-Jin Chung, Jun-Hee Jang, and Hyung-Jin Choi. 2010. An Enhanced AGC Structure and P-SCH Detection Method for Initial Cell Search in 3GPP LTE FDD/TDD Dual Mode Downlink Receiver. The Journal of Korean Institute of Communications and Information Sciences, 35, 3, (2010), 302-313. DOI: .

[KICS Style]

Myung-Jin Chung, Jun-Hee Jang, Hyung-Jin Choi, "An Enhanced AGC Structure and P-SCH Detection Method for Initial Cell Search in 3GPP LTE FDD/TDD Dual Mode Downlink Receiver," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 3, pp. 302-313, 3. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880