Systems and methods for interference mitigation with respect to periodic interferers in short-range wireless applications
US7079812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2003 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Feb 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/713
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Several techniques are provided for use by wireless devices to avoid interference with signals that are of a periodic or quasi-periodic nature that may operate in the same frequency band and proximity. In some cases, the periodic signals are detected and their timing is determined so as to predict when a next interfering event will occur. Devices that are affected by the periodic signal (such as an affected device with information to be transmitted or devices that have information to be transmitted to the affected device) are controlled to prevent transmissions during the interfering intervals. In addition, a process is provided to dynamically fragment a transmit frame of information to transmit part of the information before the interfering interval and the remainder of the information after the interfering interval, rather than waiting to transmit the entire frame until after the interfering interval. Moreover, techniques are provided to correct for clock drift between the periodic signal and a device affected by the periodic signal, as well as for clock drift between a device affected by the periodic signal and other devices that communicate with that device. These techniques pr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.