The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2009
Filed:
Oct. 15, 2002
Noh-sun Kim, Taejon-Kwangyokshi, KR;
Yong-suk Moon, Songnam-shi, KR;
Hun-kee Kim, Seoul, KR;
Jae-seung Yoon, Songnam-shi, KR;
Noh-Sun Kim, Taejon-Kwangyokshi, KR;
Yong-Suk Moon, Songnam-shi, KR;
Hun-Kee Kim, Seoul, KR;
Jae-Seung Yoon, Songnam-shi, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
A transmitting/receiving apparatus and method for packet retransmission in a mobile communication system. Upon request for a retransmission from a receiver, a transmitter inverts initially transmitted coded bits if the retransmission is odd-numbered for the same data, modulates the inverted bits, and transmits the modulated bits to the receiver. Then the receiver recovers the coded bits by demodulation. If the coded bits are retransmitted an odd number of times, the receiver decodes the coded bits after inversion. Thus the error probabilities of initial transmission bits and retransmission bits are averaged in effect and decoding performance is improved.