Method and device for managing interference in neighbouring cells having multiple sending and receiving nodes
US9185599B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2010 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Mar 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/542
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is method for controlling interference in a wireless system having multiple sending and receiving nodes. In the method for controlling interference in a wireless system having multiple sending and receiving nodes, a plurality of receiving nodes share each other's channel information, each of the receiving nodes uses the shared channel information to calculate a precoding matrix which is fed back to the sending nodes, and each of the sending nodes uses each of the precoding matrices received as feedback to transmit a send signal to the receiving nodes, thereby controlling interference. Complete interference alignment can be achieved even by just sharing channel information between receiving nodes, and the invention can be employed not only for inter-cell interference but also for intra-cell interference environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.