Radio communication system and radio base station
US9357504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2013 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a radio communication system in which a high-power base station and a low-power base station collaborate for inter-cell interference control, the downlink transmission power at the high-power base station is suitably controlled. The high-power base station executes wireless transmission to the user terminals using resources that are the same as resources used by the low-power radio base station. A transmission power controller of the radio base station uses a first downlink transmission power at first resources and uses a lower second downlink transmission power at second resources. The transmission power controller adjusts the second downlink transmission power in accordance with the number of user terminals capable of executing interference rejection combining, the downlink traffic amount for user terminals capable of executing interference rejection combining, or the number of downlink resource blocks allocated to user terminals capable of executing interference rejection combining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.