Channel state information feedback method for coordinated multi-point system and associated user equipment
US9712214B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0632
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method in a UE for feeding back channel state information (CSI) and the UE. The method comprises: acquiring a set of CSI processes which are configured by a transmission point (TP) to participate in multi-antenna multi-TP coordination; acquiring a sub-band (SB) inheritance which is configured by a TP for a CSI process from the set of CSI processes; calculating the CSI based on the configuration for the CSI process; and feeding the calculated CSI back to a TP. The present disclosure has the advantages of simple implementation and low signalling overhead and is applicable to enhanced 4G systems and to 5G systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.