| Cell search algorithms for the 3G long-term evolution |
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| 作者姓名： | SU Huan ZHANG Jian-hua Wireless Technology Innovation of Institute Beijing University of Posts and Telecommunications Beijing China |
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| 作者单位： | SU Huan ZHANG Jian-hua Wireless Technology Innovation of Institute，Beijing University of Posts and Telecommunications，Beijing 100876，China |
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| 基金项目： | This work is supported by the Cooperative Research between Beijing University of Posts and Telecommunications and TD Tech Ltd. and the National Natural Science Foundation of China (60302025). |
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| 摘 要： | This article presents downlink initial synchronization and cell identification algorithms for long term evolution (LTE) of third-generation (3G) mobile communication systems, which are based on synchronization channel (SCH) and cell specific pilot symbols, respectively. The key features of the proposed scheme are: it can improve performance of the frequency synchronization through oversampling of the SCH, it can support a large number of target cells by modulating a cell-specific pilot sequence over two symbols within a subframe, and it can guarantee cell identification performance by maximally ratio combining the frequency domain differential cross-correlation. Simulations show that the proposed scheme has a potential use in 3G LTE.
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| 收稿时间： | 7 September 2006 |
Cell search algorithms for the 3G long-term evolution |
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| SU Huan ZHANG Jian-hua Wireless Technology Innovation of Institute,Beijing University of Posts and Telecommunications,Beijing ,China.Cell search algorithms for the 3G long-term evolution[J].The Journal of China Universities of Posts and Telecommunications,2007,14(2):33-37. |
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| Authors: | SU Huan ZHANG Jian-hua |
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| Affiliation: | Wireless Technology Innovation of Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | This article presents downlink initial synchronization and cell identification algorithms for long term evolution (LTE) of third-generation (3G) mobile communication systems, which are based on synchronization channel (SCH) and cell specific pilot symbols, respectively. The key features of the proposed scheme are: it can improve performance of the frequency synchronization through oversampling of the SCH, it can support a large number of target cells by modulating a cell-specific pilot sequence over two symbols within a subframe, and it can guarantee cell identification performance by maximally ratio combining the frequency domain differential cross-correlation. Simulations show that the proposed scheme has a potential use in 3G LTE. |
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| Keywords: | 3rd generation partnership project (3GPP) LTE orthogonal frequency division multiple access (OFDMA) cell search oversampling |
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