Invention Grant
- Patent Title: Method and apparatus for avoiding in-device coexistence interference
- Patent Title (中): 避免设备间共存干扰的方法和装置
-
Application No.: US13877250Application Date: 2010-10-01
-
Publication No.: US09161343B2Publication Date: 2015-10-13
- Inventor: Changhoi Koo , Jun Li , Zhijun Cai
- Applicant: Changhoi Koo , Jun Li , Zhijun Cai
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Fish & Richardson P.C.
- International Application: PCT/US2010/051183 WO 20101001
- International Announcement: WO2012/044327 WO 20120405
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W72/04 ; H04W72/12

Abstract:
A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by controlling and separating the LTE signaling and the non-LTE signaling using dedicated time intervals to separate LTE signaling from non-LTE signaling. In addition, coexistence mode handover procedures are provided which use threshold-based triggering events to avoid coexistence interference and to prevent ping-pong effects by establishing a “keeping time” parameter so that a non-interfering network node does not switch back to an interfering network node after handoff. Coexistence interference is also avoided by providing a hybrid automatic repeat request (HARQ) mechanism which accounts for coexistence interference by providing a fixed or variable on-interval parameter and an activity parameter indicating whether non-LTE activity is present to maximize a time interval for non-LTE devices without interference from LTE activity on the same device.
Public/Granted literature
- US20130223391A1 Method and Apparatus for Avoiding In-Device Coexistence Interference Public/Granted day:2013-08-29
Information query