Mobile terminal apparatus and radio communication method
US8891478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a mobile terminal apparatus and a radio communication method which can feed back precoders that are essential to generate precoding weights in downlink MIMO transmission. With the present invention, in the first mode to feed back subband second PMIs that are selected per bandwidth part through a physical uplink control channel, a subband second PMI and a wideband second PMI are selected from a second codebook, the subband second PMI and the wideband second PMI are multiplexed on a subframe, and the multiplex signals is transmitted to a radio base station apparatus through the above physical uplink control channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.