Method and apparatus for saving energy in mobile communication system base station
US9014095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for achieving energy-saving in a mobile communication system base station, for application in an LTE system, comprising: determining the average value of a downlink sub-frame traffic load; determining, when the average value of the downlink sub-frame traffic load is below a threshold value therefore, an MBSFN downlink sub-frame which is not carrying multicast traffic; and closing the radio frequency channel corresponding to the multicast symbol in the MBSFN downlink sub-frame which is not carrying multicast traffic. By using the method, the number of downlink sub-frames required to meet the communication traffic needs of a current cell is judged according to changes in the traffic load observed by measuring the traffic load values in that cell; sub-frames which can be closed are set as MBSFN downlink sub-frames which do not send multicast traffic; radio frequency channels occupied by the multicast symbol are closed, thereby reducing energy consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.