Method to trigger in-device coexistence interference mitigation in mobile cellular systems
US8737924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Mar 14, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/485
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method to trigger in-device coexistence (IDC) interference mitigation is provided. A wireless device comprises a first radio module and a co-located second radio module. The first radio module measures a received radio signal based on a plurality of sampling instances. A control entity obtains Tx/Rx activity of the second radio module and informs Tx/Rx timing information to the first radio module. The first radio module determines a measurement result based on the obtained timing information. The first radio module triggers an IDC interference mitigation mechanism if the measurement result satisfies a configurable condition. In one embodiment, the first radio module reports IDC interference information and traffic pattern information of the second radio module to a base station for network-assisted coexistence interference mitigation. The IDC triggering mechanism prevents unnecessary and arbitrary IDC request from the device and thus improves network efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.