Low complexity joint time offset and frequency offset 
estimations for LTE uplink system

doi:10.1016/S1005-8885(14)60342-3

中国邮电高校学报(英文) ›› 2014, Vol. 21 ›› Issue (6): 30-36.doi: 10.1016/S1005-8885(14)60342-3

Low complexity joint time offset and frequency offset estimations for LTE uplink system

王俊¹,秦祺珍¹,刘守印¹,李婷²

1. 华中师范大学
2. 武汉虹信通信技术有限责任公司

收稿日期:2014-04-08 修回日期:2014-10-11 出版日期:2014-12-31 发布日期:2014-12-31
通讯作者: 刘守印 E-mail:liu_bell@hotmail.com
基金资助:
国家自然科学基金

Low complexity joint time offset and frequency offset estimations for LTE uplink system

Received:2014-04-08 Revised:2014-10-11 Online:2014-12-31 Published:2014-12-31

摘要/Abstract

摘要： 　The orthogonal frequency division multiplexing (OFDM) is currently used in long term evolution (LTE) system. The time offset estimation (TOE) and frequency offset estimation (FOE) of OFDM is essential in mobile communication base. According to the conventional cross correlation TOE and FOE algorithms, a new cross correlation computation was proposed to estimate the time offset and frequency offset for LTE uplink system, so that the time offset and frequency offset can be estimated simultaneously with low complexity. Compared with the conventional TOE and FOE algorithms, the simulation show that the proposed can reduce complexity and improve performance for FOE with good performance for TOE in additive white Gaussian noise (AWGN) and multipath channel.

关键词: FOE, TOE, LTE, OFDM

Abstract: 　The orthogonal frequency division multiplexing (OFDM) is currently used in long term evolution (LTE) system. The time offset estimation (TOE) and frequency offset estimation (FOE) of OFDM is essential in mobile communication base. According to the conventional cross correlation TOE and FOE algorithms, a new cross correlation computation was proposed to estimate the time offset and frequency offset for LTE uplink system, so that the time offset and frequency offset can be estimated simultaneously with low complexity. Compared with the conventional TOE and FOE algorithms, the simulation show that the proposed can reduce complexity and improve performance for FOE with good performance for TOE in additive white Gaussian noise (AWGN) and multipath channel.

Key words: FOE, TOE, LTE, OFDM

中图分类号:

TN91

参考文献

1. 3GPP TS 36.300 v8.12.0. Evolved universal terrestrial radio access (E-UTRA); Overall description. 2010

2. Wei L, Schlegel C. Synchronization requirements for multi-user OFDM on satellite mobile and two-path Rayleigh fading channels. IEEE Transactions on Communications, 1995, 43(2/3/4): 887-895

3. Pollet T, van Bladel M, Moeneclaey M. BER sensitivity of OFDM systems to carrier frequency offset and Wiener Phase noise. IEEE Transactions on Communications, 1995, 43(2/3/4):191-193

4. 3GPP TS 36.211 v9.1.0. Evolved universal terrestrial radio access (E-UTRA); Physical channel and modulation. 2010

5. Moose P H. A technique for orthogonal frequency division multiplexing frequency offset correction. IEEE Transactions on Communications, 1994, 42(10): 2908-2914

6. Schmidl T M, Cox D C. Robust frequency and timing synchronization for OFDM. IEEE Transactions on Communications, 1997, 45(12):1613-1621

7. Sajadi A H, Bakhshi H, Manaffar M, et al. A new joint time and frequency offset estimation method for OFDM systems. Proceedings of the 2009 International Conference on Wireless Communications & Signal Processing (WCSP’09), Nov 13-15, 2009, Nanjing, China. Piscataway, NJ, USA: IEEE, 2009: 4p

8. Yang S, Shin Y. A robust joint estimator for OFDM timing and frequency offsets based on PN codes. Proceedings of the 2nd IEEE Consumer Communication and Networking Conference (CCNC’05), Jan 3-6, 2005, Las Vegas, NV, USA. Piscataway, NJ, USA: IEEE, 2005: 577-579

9. Liu Q Q, Liu D P. An improved joint time and frequency offset estimation for OFDM systems in multipath fading channel. Proceedings of the 7th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM’11), Sep 23-25, 2011, Wuhan, China. Piscataway, NJ, USA: IEEE, 2011: 4p

10. Morelli M. Timing and frequency synchronization for the uplink of an OFDMA system. IEEE Transactions on Communications, 2004, 52(2): 296-306

11. Dai L L, Wang Z C, Wang J, et al. Joint channel estimation and time-frequency synchronization for uplink TDS-OFDMA systems. IEEE Transactions on Consumer Electronics, 2010, 56(2): 49-500

12. Choi J W, Lee J, Zhao Q, et al. Joint ML estimation of frame timing and carrier frequency offset for OFDM systems employing time-domain repeated preamble. IEEE Transactions on Wireless Communications, 2010, 9(1): 311-317

13. Koivisto T, Kuosmanen T, Roman T. Estimation of time and frequency offsets in LTE coordinated multi-point transmission. Proceedings of the 78th Vehicular Technology Conference (VTC-Fall’13), Sept 2-5, 2013, Las Vegas, NV, USA. Piscataway, NJ, USA: IEEE, 2013: 5p

14. Guo K F, Xu W, Zhou G X. Differential carrier frequency offset and sampling frequency offset estimation for 3GPP LTE. Proceedings of the 73rd Vehicular Technology Conference (VTC-Spring’11), May 15-18, 2011, Budapest, Hungary. Piscataway, NJ, USA: IEEE, 2011: 5p

15. Liu J, Wu B, Li P A. On timing offset and frequency offset estimation in LTE uplink. Wireless Communications and Applications: Proceedings of the 1st International Conference on Wireless Communications and Applications (ICWCA’11), Aug 1-3, 2011, Sanya, China. Lecture Notes of the Institute for Computer Sciences 72. Berlin, Germany: Springer-Verlag, 2012: 265-274

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Low complexity joint time offset and frequency offset estimations for LTE uplink system

Low complexity joint time offset and frequency offset estimations for LTE uplink system

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