Industrial Technology Research Institute

Sunplus Technology Co., Ltd.

Po-Ning Chen

Shin-Lin Shieh

Yung-Hsiang Han

Yunghsiang S Han

Shyh-Tzong Kuo

A decoding method and system for real-time wireless channel estimation, which decodes a received signal with a noise. The received signal is coded by a concatenation code. At first, the received signal is performed a certain amount of decoding by a Max-Log-MAP decoding procedure. Next, an estimated amplitude of the received signal and an estimated variance of a noise are computed. Then, the received signal is adjusted in accordance with the estimated amplitude and the estimated variance to thereby produce an adjusted received signal. Finally, the adjusted received signal is decoded by a Log-Map decoding procedure.

Decoding method and system for real-time wireless channel estimation

A sequential decoding method and a decoding apparatus are provided. According to the method, an open stack is adopted for storing a plurality of paths. When the codeword generated by an internal decoder in the decoding apparatus is incorrect, a codeword is generated again by using the paths stored in the open stack. Accordingly, the complexity of decoding is reduced.

Sequential decoding method and apparatus thereof

A method for BTFD decoding of signals having at least a message block of k-bit from a length candidate set S={s, s, . . . s}, wherein the k message bits are encoded by a CRC encoder and processed by an (n, l, m) convolutional encoder to generate encoded data that includes decoding a received frame to form a decoded sequence that includes an s-bit message and an error correcting code, calculating a &#x3b4;(s) value, comparing &#x3b4;(s) with a threshold value, repeating the decoding and calculating steps if &#x3b4;(s) is greater than the threshold, and updating the threshold to be &#x3b4;(s) if &#x3b4;(s) is less than or equal to the threshold.

System and method for blind transport format detection with cyclic redundancy check

In a method for a variable-length communications system including encoding a message and decoding a data bit stream, the message includes a plurality of message blocks. A message block of the message is encoded by generating a parity check bit stream, flipping the parity check bit stream, appending the flipped parity check bit stream and a number of 0's to the end of the message block, and convolutionally encoding the resultant bit stream. When a data bit stream is received, a guessed message block and a guessed flipped parity check bit stream are extracted based on a guessed message block length. A parity check bit stream is generated for the guessed message block and then flipped. If the flipped parity check bit stream is the same as the guessed flipped parity check bit stream, the message block has been identified. Otherwise, the guessed message block length is increased by 1 and the above step is repeated.

Growing community of inventors

Hsinchu, Taiwan

Po-Ning Chen