Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Kwang Min Hyun

Youn Ok Park

Jun-Woo Kim

Dae Ho Kim

Seung Jae Bahng

Kyung Yeol Sohn

Young Jo Bang

Chang Wahn Yu

Hyeong Sook Park

Dong Weon Yoon

Disclosed is a method and apparatus for composing a received symbol signal modulated with a bit reflected Gray code into bit information. According to an embodiment of the present invention, a positive integer of the received symbol signal having bits is assigned according to the Gray mapping rule, and a sign is determined. A value that is indicative of an arrangement of the bits constituting the received symbol signal is calculated. A boundary value in at least one bit group consisting of the bits constituting the received symbol signal is acquired, and a difference from an absolute value of the received symbol signal is calculated. The received symbol signal is converted into information per bit using a value of the received symbol signal based on the positive integer and the determined sign, the value that is indicative of the bit arrangement, and the difference from the absolute value. Therefore, it is possible to reduce complexity in bitwise decomposition for an iterative decoder inevitably used in a receiver.

Method and apparatus for decomposing received symbol signal modulated with bit reflected gray code in bit information

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Seoul, South Korea

Kwang Min Hyun