Method for allocating reference signals in MIMO system
US8174957B2 · kind B2 · utility
13Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Aug 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0226
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is provided a method for placing reference signals in a wireless communication system. The method includes preparing a plurality of sub-frames for a plurality of antennas, placing a reference signal for one sub-frame and placing a reference signal for another sub-frame not to overlap with the reference signal for one sub-frame, wherein the reference signal for one sub-frame and the reference signal for another sub-frame are successively placed on contiguous OFDM symbols or on the contiguous sub-carriers. Channel estimation or data demodulation can be prevented from performance degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.