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1. (WO2017151175) TURBO CODING WITH SUPPORT FOR LOW CODING RATES

Pub. No.:    WO/2017/151175    International Application No.:    PCT/US2016/039077
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Jun 24 01:59:59 CEST 2016
IPC: H03M 13/29
H03M 13/39
Applicants: INTEL CORPORATION
Inventors: DAVYDOV, Alexei
CHATTERJEE, Debdeep
ERMOLAEV, Grigory
Title: TURBO CODING WITH SUPPORT FOR LOW CODING RATES
Abstract:
A turbo encoder designed to operate at one coding rate may be operated at a lower coding rate by modifying the size of each input block of data. In one implementation, the size may be increased by inserting predetermined bit sequences (i.e., additional bits) into the original block of data to create a "virtual code block" that is larger than the input block of data. The virtual code block may be input to the turbo coder to obtain an encoded output block that includes a systematic portion and parity portion. The systematic portion may be modified to remove the predetermined bit sequence and the resulting output block transmitted over a channel (e.g., a noisy radio channel).