Method for codebook enhancement for multi-user multiple-input multiple-output systems
US9401749B2 · kind B2 · utility
3Cited by
13References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 26, 2013 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | May 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless terminal is capable of receiving a pilot signal from a base station; and determining a precoding matrix as a linear combination of two matrices V1 and V2 based on the received pilot signal. In one implementation, the two matrices V1 and V2 are sub-matrices of a matrix U of a codebook, the linear combination is u:=(V1+αV2)/√{square root over (1+|α|2)} and α is one of a real-valued number and a complex-valued number. The wireless terminal is also capable of transmitting a representation of at least a portion of the precoding matrix to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.