User apparatus, base station apparatus and method in mobile communications system
US8964671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0639
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A base station apparatus in a mobile communications system has a unit which transmits, to one or more user apparatuses, a downlink control signal including information for allocating a radio resource, a unit which receives an uplink signal from the one or more user apparatuses, and a unit which determines, based on a feedback from the user apparatus, a pre-encoding matrix indicator (PMI) indicating a pre-encoding matrix to be applied to multiple antennas of the base station apparatus. When a number of multiplexed users in the downlink control signal is no less than a predetermined number, the PMI indicating the pre-encoding matrix to be applied to a whole system bandwidth of the mobile communications system is reported to each of the user apparatuses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.