Mobile communication system and communication control method
US9735848B2 · kind B2 · utility
6Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2013 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile communication system performs downlink multi-antenna transmission by applying a precoder matrix that defines transmission directionality of downlink and a rank that defines number of signal sequences of the downlink. The mobile communication system comprises a user terminal that feeds back feedback information of a target frequency band, to a base station. The feedback information includes combinations of precoder matrix information indicating the precoder matrix and rank information indicating the rank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.