Rank filtering and graceful rank switching in base station
US12375138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Jun 1, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/063
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method which i) segregates UEs to different categories of “conforming” and “nonconforming”, and ii) performs rank indicator (RI) filtering and/or switching based on the specific category is provided. Rank indicator (RI) filtering is performed in a SINR-specific manner, e.g., when SINR is low, the rank filtering is performed in such a way to always give an output of 1 or 2, not more. In addition, the Modulation and Coding Scheme (MCS) assigned for a PDSCH is adjusted when the rank switching is performed, thereby achieving graceful rank switching. Furthermore, Outer Loop Rate Control (OLRC) optimization is provided in response to rank switching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.