Spectrum sharing between wireless systems
US7177645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | May 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/0446
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a wireless network, subjected to interferences caused by the operation of an adjacent network, a method and devices are provided to allow the allocation of time-sub-frames for operating at frequencies that are subjected to such interferences.By the present invention, a time frame allocated for communication is divided into at least two time sub-frames. The links along which communications will be transmitted in each of these sub-frames are selected in such a way that during each sub-frame, none of the operative links will be subjected to interferences caused by communications transmitted during that sub-frame along any of the other links.Also, the time frames allocated for communication along the channels that experience interferences are divided into at least two time sub-frames. One of the time sub-frames is reserved for communicating signals to/from subscriber terminals that are not subjected to interferences, while another time sub-frame is reserved for communicating radio signals to/from terminals that are subjected to interferences. The transmission and/or reception of radio signals along the interfered channels are scheduled in such a way that the interferences caused by …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.