Spatial null creation using massive MIMO (M-MIMO)
US9300501B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/21
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a base station having a Massive Multiple Input Multiple Output (M-MIMO) antenna array, the availability of the M-MIMO antenna array is exploited to manage the interference caused by the base station to neighboring cells. In one embodiment, the large number of antenna elements of the M-MIMO antenna array are used to create precise transmit and/or receive spatial nulls at specific User Equipments (UEs) being served by a neighboring cell and/or in select areas of the neighboring cell. Depending on whether the spatial null is partial or full, transmissions by the base station may have reduced or even zero receive power within the neighboring cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.