Radio base station apparatus, radio terminal apparatus and wireless communication method
US9379861B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Mar 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radio base station apparatus wherein even when a single-base-station transmission and a plural-base-station cooperative transmission are implemented at the same time, the terminal-to-base-station feedback information amount and the inter-cell interference (ICI) can be reduced. A base station uses a first transmission mode, in which only the base station implements a signal transmission, and a second transmission mode, in which the base station implements a cooperative signal transmission together with another radio base station apparatus, to communicate with one or more radio terminal apparatuses. A setting unit sets, as a particular frequency band whose reception quality is to be measured, one of first and second frequency bands that are parts of a band used for communication with the terminals. A deciding unit decides, as the transmission mode for the terminals, one of the first and second transmissions based on the reception quality of the particular frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.