RESEND INFORMATION SYNTHESIZER, COMMUNICATION TERMINAL DEVICE, AND METHOD OF SYNTHESIZING RESEND INFORMATION

摘要

PROBLEM TO BE SOLVED: To reduce a necessary memory capacity in a resend processing by an HARQ and to realize an easy changing design even if number of times of resending is increased. SOLUTION: A resend information synthesizer synthesizes information received via a radio communication with resend information resent by an automatic resend request, decodes an error correction by a decoder 19 before an error detection of the automatic resend request, and outputs reproducibly. The resend information synthesizer includes a data buffer 18 for storing the received information and the resend information; a sequential bit shifter 16 for calculating a control value updated from the received information on the basis of the control value updated at each number of times of resending from a counter 11, and a sequential bit shifter 15 for calculating the control value updated from the resend information stored in the data buffer 18; and an adder 17 for synthesizing both. COPYRIGHT: (C)2005,JPO&NCIPI