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Patent Searching and Data


Title:
DECISION FEED-FORWARD REDUCED-STATE SEQUENCE DETECTION
Document Type and Number:
WIPO Patent Application WO/2019/201227
Kind Code:
A1
Abstract:
Systems and methods are disclosed for detecting sequences of symbols in a received signal in the presence of inter-symbol interference. Maximum Likelihood Sequence Detection (MLSD) is a known method for optimum detection of such sequences. To reduce the complexity of the MLSD, a Reduced-State Sequence Detection (RSSD) technique has been considered based on partitioning the states of the MLSD. In this approach, a simplified sequence detector is placed within a global decision feedback loop. The disclosed architecture shortens the feedback loop by moving the sequence detector outside the loop and converting the interaction between the two to a feed-forward manner. This is achieved through slicing the signal and closing a nested loop around the sliced bins. A further variant simplifies the detector even more by reducing the number of bins.

Inventors:
SHAKIBA, Mohammad Hossein (44 Brimwood Crescent, Richmond Hill, Ontario L4B 4B6, 4B6, CA)
Application Number:
CN2019/082807
Publication Date:
October 24, 2019
Filing Date:
April 16, 2019
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H03M13/39
Foreign References:
US20180062671A12018-03-01
US8938035B12015-01-20
US20050264906A12005-12-01
US20090185643A12009-07-23
US6438180B12002-08-20
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