Systems, apparatus and techniques for fast cell search and accurate synchronization in wireless communications
US7801180B2 · kind B2 · utility
4Cited by
9References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2009 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Mar 20, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2662
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for fast cell search, selection and reselection for wireless communication systems such as OFDM or OFDMA communication systems. In various implementations of the described techniques, downlink subframes from base stations to mobile stations are designed to include information in form of preambles or post-ambles in one or more downlink subframes to facilitate cell search at receiving mobile stations at high speeds. The described preambles and post-ambles may also be used to improve the accuracy of signal synchronization in time and frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.