Method and apparatus for iterative determination of MIMO iterative receiver
AssigneesElectronics and Telecommunications Research Institute, Industry-Academic Cooperation Foundation, Yonsei University
InventorsYoung Jin Moon, Dong Seung Kwon, Jee Hwan Noh, Chungyong Lee
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Abstract
A multiple input multiple output (MIMO) iterative receiver detects a soft log likelihood ratio value from a signal outputted from a transmitter and decodes the detected soft log likelihood ratio value in order to extract a hard value and a soft value from the detected soft log likelihood ratio value. After whether or not a CRC of the hard value is acknowledged is determined, a CRC of a data burst is determined or iteration of signal demodulation of the MIMO iterative receiver is determined by feeding back the soft value or a CRC of data is performed assembling signals of the burst unit in accordance with the determination result.
Claims12
A method for iterative determination of a multiple input multiple output (MIMO) iterative receiver, comprising:
- detecting a soft value log likelihood ratio value in a received signal;
- obtaining a first value and a second value from the detected soft value log likelihood ratio value by decoding the detected soft value log likelihood ratio value;
- performing a cyclic redundancy check (CRC) on the first value and verifying whether or not the CRC on the first value is successfully performed;
- performing a CRC on a data burst and verifying whether or not the CRC on the data burst is successfully performed when the CRC on the first value is successfully performed;
- and
- iterating steps after the decoding on the basis of the second value when the CRC on the data burst is not successful.
A system for iterative determination of a multiple input multiple output iterative receiver, comprising:
- a multiple input multiple output (MIMO) detector detecting a soft value log likelihood ratio value in a received signal;
- a deinterleaver deinterleaving the detected soft value log likelihood ratio value;
- a decoder extracting a first value and a second value by decoding the deinterleaved soft value log likelihood ratio value;
- a first cyclic redundancy check (CRC) verifier verifying a cyclic redundancy check result of the first value by determining whether or not the CRC result is acknowledged;
- a burst assembler assembling bursts of the received signal of the burst unit and outputting them as data when the first CRC verifier verifies that the CRC result of the first value is acknowledged;
- a second CRC verifier verifying a CRC of the data outputted from the burst assembler and verifying whether or not the CRC result of the data is acknowledged;
- and
- an interleaver interleaving the deinterleaved soft log likelihood ratio value with the second value and feeding back it to the MIMO detector when any one of the first CRC verifier and the second CRC verifier verifies that the CRC result is not acknowledged.
Dependencies are inferred from the claim text.