Hybrid approach for physical downlink shared channel (PDSCH) interference cancellation
US9100231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2012 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Aug 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0048
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Certain aspects of the present disclosure relate to a hybrid approach for Physical Downlink Shared Channel (PDSCH) Interference Cancellation (IC). In certain aspects, if the PDSCH information is known for a serving cell but not be known for interfering cell(s), a hybrid approach that involves using Codeword-level IC (CWIC) for the serving cell and using Symbol-level IC (SLIC) for the interfering cells may be used for better IC performance. The hybrid IC approach may start with a UE attempting to decode the serving cell PDSCH. If the decode is unsuccessful, the UE may perform CWIC for the serving cell followed by SLIC using the results of the CWIC stage. After the SLIC stage, the UE may attempt to decode the serving cell PDSCH again. The UE may perform multiple operations of this method until the serving cell PDSCH is successfully decoded or a maximum number of iterations is reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.