Phase tracking reference signal for 6G wireless communication
US12028198B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/26526
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and system to compensate for phase noise in a 5G or 6G DFT-S-OFDM signal are described. An access port (AP)-specific orthogonal cover code (OCC) is applied to phase tracking reference signal (PTRS) symbols in each of a plurality of PTRS groups. The PTRS group are inserted between data symbols to form a data vector prior to perform transform precoding on the data vector and transmission to a UE. The UE extracts the PTRS symbols from different PTRS APs using the OCC specific to each AP. After extraction, the phase noise for each PTRS group is estimated and used to compensate the data symbols associated with the PTRS group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.