Online convex optimization with periodic updates for downlink multi-cell MIMO wireless network virtualization
US11979206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2020 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | May 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0615
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and network node for online coordinated multi-cell precoding are provided. According to one aspect, a method includes receiving from each of the plurality of service providers a virtual precoder matrix determined by the corresponding service provider. The method also includes determining a precoder matrix by minimizing a precoding deviation from a virtualization demand of the network subject to at least one power constraint, the virtualization demand being based at least in part on a product of a channel state matrix and a virtual precoder matrix. The method further includes applying the determined precoder matrix to signals applied to a plurality of antennas to achieve a sum of throughputs for the plurality of service providers that is greater than a sum of throughputs for the plurality of service providers achievable when the virtual precoder matrices are applied to the signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.