Invention Grant
- Patent Title: Soft linear and non-linear interference cancellation
- Patent Title (中): 软线性和非线性干扰消除
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Application No.: US13493203Application Date: 2012-06-11
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Publication No.: US08774261B2Publication Date: 2014-07-08
- Inventor: Farrokh Abrishamkar , Divaydeep Sikri , Ken Delgado
- Applicant: Farrokh Abrishamkar , Divaydeep Sikri , Ken Delgado
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Donald C. Kordich
- Main IPC: H03H7/30
- IPC: H03H7/30
Abstract:
A two stage interference cancellation (IC) process includes a linear IC stage that suppresses co-channel interference (CCI) and adjacent channel interference (ACI). The linear IC stage disambiguates otherwise super-trellis data for non-linear cancellation. Soft linear IC processing is driven by a-posteriori probability (Apop) information. A second stage performs expectation maximization/Baum Welch (EM-BW) processing that reduces residual ISI left over from the first stage and also generates the Apop which drives the soft linear IC in an iterative manner.
Public/Granted literature
- US20130148711A1 SOFT LINEAR AND NON-LINEAR INTERFERENCE CANCELLATION Public/Granted day:2013-06-13
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