Method and system for a simplified user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission
US7826416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | May 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Certain embodiments of the invention may be found in a method and system for a simplified user group selection scheme with finite-rate channel state information feedback for frequency division duplex (FDD) multiuser multiple-input-multiple-output (MIMO) downlink transmission. Aspects of the method may include selecting, from a plurality of users, a first user having a channel gain that is greater than a channel gain corresponding to a remaining portion of the plurality of users. At least a second user may be selected from a portion of the remaining portion of the plurality of users. The selected at least the second user has a channel direction that may be approximately orthogonal to that of the first user. The channel gain may be defined by a quantized channel gain. A quantized channel direction of the selected first user may be determined for the selecting the at least the second user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.