MU-MIMO-OFDMA systems and methods for multi-rank CQI computation and precoder selection
US8654663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Dec 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for determining attributes of communication channels of MU-MIMO users in an OFDMA system are disclosed. One method comprises receiving from a base station, for at least one sub-band of contiguous sub-carriers, an indication of an estimate of or an upper-bound on a total number of streams that are co-scheduled by the base station on the at least one sub-band. In addition, the method further comprises determining one or more signal quality measures for the at-least one sub-band based on the estimate of or the upper-bound on the total number of streams that are scheduled by the base station on the at least one sub-band. Moreover, an indication of the one or more signal quality measures is transmitted to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.