Mobile communication system, base station apparatus, and method of controlling mobile communication system
US7035660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a mobile communication system, interference power from adjacent cells is effectively reduced and transmission power is limited. A transmission loss estimation unit 202 and a transmission power estimation unit 204 estimate transmission power necessary for transmission of a downstream signal. According to an upstream signal from each of plurality of mobile terminal devices to a base station, a grouping unit 206 divides a plurality of mobile terminal devices into groups sharing a plurality of wireless resources according to the estimated transmission powers. Downstream signals to be transmitted to mobile terminal devices belonging to each of the groups formed by the grouping means are transmitted simultaneously with each other. Also, priorities are set for the plurality of wireless resources and the mobile terminal devices belonging to the groups divided by the grouping unit 206 are assigned according to the set priorities. Accordingly, transmission to one of the groups requiring higher transmission power in one of cells adjacent to each other and transmission to one of the groups requiring higher transmission power in another of the cells are performed at different times, thereby …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.