Invention Grant
- Patent Title: Accessing memory during parallel turbo decoding
- Patent Title (中): 在平行turbo解码过程中访问存储器
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Application No.: US12878934Application Date: 2010-09-09
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Publication No.: US08719658B2Publication Date: 2014-05-06
- Inventor: Zhiqiang Cui , Iwen Yao , Qiang Huang
- Applicant: Zhiqiang Cui , Iwen Yao , Qiang Huang
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Ramin Mobarhan
- Main IPC: G11C29/00
- IPC: G11C29/00 ; H03M13/03
Abstract:
A method for accessing extrinsic information in a turbo decoder is disclosed. Operation phases for Forward State Metric Calculators (FSMCs) and Reverse State Metric Calculators (RSMCs) in multiple maximum a posteriori probability (MAP) decoders are misaligned differently based on whether a current half iteration is even or odd. First extrinsic information is read from a memory into the FSMCs and RSMCs using the misaligned operation phases. Second extrinsic information is determined using the MAP decoders. Each row of the second extrinsic information is stored to a different bank in the memory using the misaligned operation phases.
Public/Granted literature
- US20120066566A1 ACCESSING MEMORY DURING PARALLEL TURBO DECODING Public/Granted day:2012-03-15
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