Variable codebook for MIMO system
US8259835B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Nov 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A MIMO wireless communication system employing a variable size preceding codebook is provided. The size of the codebook may be determined by the quality of the wireless transmission channel between a transmitter and a receiver associated with the MIMO wireless communication systems or some other codebook selection criteria. A larger codebook can be employed when the channel quality is high, allowing for significant gains in overall system throughput. In contrast, a smaller codebook can be employed when the cannel quality is poor, so that the added channel overhead associated with a larger code book does not reduce the channel efficiency under circumstances in which a larger codebook would not significantly improve system throughput.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.