Invention Grant
- Patent Title: Femtocell beacon interference mitigation with out-of-band links
- Patent Title (中): 毫微微小区信标干扰减轻与带外链路
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Application No.: US13008258Application Date: 2011-01-18
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Publication No.: US08717987B2Publication Date: 2014-05-06
- Inventor: Soumya Das , Nishith Chaubey , Samir S. Soliman
- Applicant: Soumya Das , Nishith Chaubey , Samir S. Soliman
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Jeffrey D. Jacobs
- Main IPC: H04W4/00
- IPC: H04W4/00

Abstract:
Systems, methods, devices, and computer program products are described for mitigating macrocell interference during femtocell discovery in a wireless communications system. In one example, a mobile device may be camped on a macrocell. A femtocell transmits out-of-band (OOB) discovery signals to, or receives OOB band discovery signals from, the mobile device to facilitate presence detection. The femtocell may also be configured to use various techniques to transmit in-band beacon bursts (e.g., low or high power beacon bursts) to the mobile device in the macrocell frequency range to trigger the mobile device to perform an inter-frequency scan for cell reselection. The femtocell may transmit communications signals to the mobile device in a femtocell frequency range (different from the macrocell frequency range) after the mobile device has discovered and selected the femtocell.
Public/Granted literature
- US20120182965A1 FEMTOCELL BEACON INTERFERENCE MITIGATION WITH OUT-OF-BAND LINKS Public/Granted day:2012-07-19
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