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| Content Provider | IET Digital Library |
|---|---|
| Author | Su, Szu Lin Lin, Yung Chuan Fan, Yun Jhen |
| Abstract | In the Long Term Evolution (LTE) system, the initial cell search needs not only to achieve the timing synchronisations of symbols, slots and frames, but also to detect the sector identity (ID), the cell ID group and the carrier frequency offset (CFO), which includes an integer part (ICFO) and a fractional part. To accomplish this cell search process, two synchronisation signals, the primary synchronisation signal (PSS) and the secondary synchronisation signal, are periodically broadcasted from base stations in the LTE system. The PSS is mainly used for sector ID detection. In this study, an innovative algorithm for detecting the sector ID and ICFO together via the PSS-matching process is presented. In the proposed scheme, the phases of the differential correlation instead of the absolute values are adopted to determine the ICFO. Furthermore, a new set of PSS is proposed in order to improve the success probability of ICFO detection. Compared with conventional schemes, the proposed scheme can detect both the sector ID and ICFO with higher accuracy and much lower complexity. |
| Starting Page | 950 |
| Ending Page | 959 |
| Page Count | 10 |
| ISSN | 17518628 |
| Volume Number | 7 |
| e-ISSN | 17518636 |
| Issue Number | Issue 10, Jul (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/10 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2012.0307 |
| Journal | IET Communications |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Base Station Broadcasting Broadcast Communication Cell ID Group Cellular Radio ICFO Integer Carrier Frequency Offset Detection Joint Sector Identity Long Term Evolution Long Term Evolution Cell Search Process LTE Mobile Radio System Phase-difference Primary Synchronisation Signal Probability PSS-matching Process Secondary Synchronisation Signal Statistics Symbol Timing Synchronisation Synchronisation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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