Non-coherent neighbor cell searching method
US9584245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2692
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a non-coherent neighbor cell search method for primary synchronization signal (PSS) and secondary synchronization signal (SSS). In order to eliminate the channel response of the home cell, the present invention utilizes the similarity of channel responses at adjacent subcarriers, components at the kth subcarrier and the (k+1)th subcarrier of the received signal are respectively multiplied by the conjugation of the corresponding local synchronization signal to respectively obtain the kth product and the (k+1)th product. Afterward, a combination signal is obtained by examining the difference of the kth product and the (k+1)th product. By mathematical simplification and analysis, the main unknown component of the combination signal is the synchronization signal of neighbor cell, also in a compound form. Thus, the neighbor cell ID can be obtained by performing the correlation operation of the combination signal to the compound reference sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.