User terminal, radio base station and adaptive modulation and coding method
US9667361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Jan 20, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/51
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention is designed to make possible adaptive modulation and coding (AMC) that supports high-order modulation schemes. The adaptive modulation and coding method of the present invention is an adaptive modulation and coding method for a downlink shared channel, and includes, in a user terminal, the steps of measuring channel quality based on a reference signal from the radio base station, acquiring a channel quality indicator to indicate the modulation scheme and the coding rate that are applicable to the downlink shared channel in the channel quality, from a table in which channel quality indicators, modulation schemes and coding rates are associated with each other, and transmitting the channel quality indicator to the radio base station, and the modulation schemes include a modulation scheme of a higher order than 64 QAM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.