Method and system for providing multi-input-multi-output (MIMO) downlink transmission
US8902840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Sep 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0023
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.