Cell search algorithms for the 3G long-term evolution  

作　　者：SU Huan ZHANG Jian-hua 

机构地区：[1]Wireless Technology Innovation of Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2007年第2期33-37,共5页中国邮电高校学报（英文版）

基　　金：the Cooperative Research between Beijing University of Posts and Telecommunications and TD Tech Ltd. and the National Natural Science Foundation of China （60302025）.

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.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.

关 键 词：3rd generation partnership project （3GPP） LTE orthogonal frequency division multiple access （OFDMA） cell search OVERSAMPLING 

分 类 号：TN929.5[电子电信—通信与信息系统]