Compressing and decompressing beamspace coefficients
US10848220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2017 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Mar 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0408
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
It is provided a method for compressing beamspace coefficients to be applied when transferring data between a radio network node and a specific user device, the method being performed in a coefficient encoder and comprising the steps of: obtaining beamspace coefficients, wherein each beamspace coefficient comprises a complex value and a direction; determining at least one cluster based on proximity, in a complex plane, of the complex values of the beamspace coefficients; determining, for each beamspace coefficient, a cluster to which it belongs; determining a representative complex value for each one of the at least one cluster; outputting the representative complex values for each cluster; and outputting, for each beamspace coefficient, an identity of the cluster to which the beamspace coefficient belongs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.