Multi-user data transmission/reception system and mode determination method
US7916620B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0062
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-user data transmission/reception system includes at least one mobile station to receive a pilot signal, select a preferred mode, a preceding matrix index, a beamforming vector index, and a quantized capacity level using the pilot signal, and transmit the preferred mode, the precoding matrix index, the beamforming vector index, and the quantized capacity level; and a base station to transmit the pilot signal to the at least one mobile station, receive the preferred mode, the precoding matrix index, the beamforming vector index, and the quantized capacity level from the at least one mobile station, and determine an optimal mode, an optimal precoding matrix, and an optimal beamforming vector using a lookup table storing an expected capacity for each capacity quantization interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.