SELECTIVE HARQ COMBINING SCHEME FOR OFDM/OFDMA SYSTEMS Russian patent published in 2012 - IPC H04L1/18 

Abstract RU 2450461 C2

FIELD: information technology.

SUBSTANCE: wireless communication device with a hybrid automatic repeat-request (HARQ) mechanism, comprising: apparatus for storing signal data for a previously received HARQ transmission having an incorrect decoded message; a Type A combiner located before a signal inverse mapping unit for generating HARQ combined signal data at a first location along a receiver processing path; a type B combiner located immediately after the signal inverse mapping unit for generating HARQ combined signal data at a second location along the receiver processing path downstream of the first location; and apparatus for selecting one of Type A and Type B combiners for use in generating HARQ combined signal data, wherein the HARQ combined signal data are based on signal data for a currently received HARQ transmission and the signal data for the previously received HARQ transmission having the incorrect decoded message.

EFFECT: reduced HARQ buffer size required and more benefit from combining compared to the conventional HARQ combining method.

13 cl, 16 dwg

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RU 2 450 461 C2

Authors

Park Dzong Khieon

Kim Dze Voo

Nanavati Samir

Khert Dzhejms J.

Dates

2012-05-10Published

2008-12-12Filed