Interference cancellation in MIMO same channel full-duplex transceivers
US9966983B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jan 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0413
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Same-channel full-duplex communications can be adapted for multiple-input multiple-output (MIMO) processing in order to derive increased signal performance through the exploitation of spatial diversity. Strong interference components from transmissions over multiple local antennas can be removed from a received radio signal to allow array and diversity gain benefits of MIMO to be enjoyed in same-channel full-duplex communications. More specifically, baseband samples of two or more MIMO transmission signals may be used to perform channel estimation on a received radio signal by correlating the baseband signals with the radio signal to estimate interference channels associated with the MIMO transmission signals. The estimated interference channels are used to subtract corresponding interference components from the received radio signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.