System and method for power control in MIMO systems
US8155598B2 · kind B2 · utility
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Key dates
| Filing date | Jan 9, 2009 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jun 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The return channel in a multiple-input and multiple-output (MIMO) communication system is used to provide signal information on an individual-channel basis. In one embodiment, in a controlled factory environment, this information may be used to incrementing up or down the variable gain amplifier and/or the power amplifier of a MIMO transmitter and/or receiver so as to generate a default signal power offset to be used during normal operation. Thereafter, such signal information may similarly be provided via the return channel and used to further adjust the transmit parameters to account for location-specific signal conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.