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:
Jan. 23, 2018
Filed:
Mar. 17, 2016
Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do, KR;
Sang Won Choi, Yongin-si, KR;
Ju Yeop Kim, Seoul, KR;
Yong Soo Song, Uiwang-si, KR;
Yong Gyu Kim, Cheonan-si, KR;
KOREA RAILROAD RESEARCH INSTITUTE, Uiwang-si, KR;
Abstract
A method for transmitting packets by a transmitter in a wireless communication network and retransmitting the packets not received correctly by receivers is discussed. The method includes transmitting the packets to at least two receivers, receiving reception acknowledgement response signals including ACK or NACK signals for the packets transmitted to the receivers, analyzing patterns of the received reception acknowledgement response signals in accordance with a number of the ACK or NACK signals, differently index coding the packets which are not received correctly by each receiver, and retransmitting the index-coded packets.