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:
Feb. 05, 2013
Filed:
Nov. 17, 2006
Il-gyu Kim, Seoul, KR;
Hyeong-geun Park, Daejeon, KR;
Kap-seok Chang, Daejeon, KR;
Young-hoon Kim, Daejeon, KR;
Seung-chan Bang, Daejeon, KR;
Eun-jeong Shin, Daejeon, KR;
Hye-kyung Jwa, Daejeon, KR;
Moon-sik Lee, Daejeon, KR;
Il-Gyu Kim, Seoul, KR;
Hyeong-Geun Park, Daejeon, KR;
Kap-Seok Chang, Daejeon, KR;
Young-Hoon Kim, Daejeon, KR;
Seung-Chan Bang, Daejeon, KR;
Eun-Jeong Shin, Daejeon, KR;
Hye-Kyung Jwa, Daejeon, KR;
Moon-sik Lee, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
SK Telecom., Co., Ltd, Seoul, KR;
KT Corporation, Seongnam, KR;
Abstract
The present invention relates to a packet data transmission method in an OFDMA system and an apparatus thereof. The present invention provides a user packet data transmission method including generating a RACH burst for channel information estimation, selecting a first antenna among a plurality of antennas, transmitting the RACH burst through the first antenna to a base station, receiving a data transmission acceptance signal from the base station, in response to the RACH burst, transmitting user packet data through the first antenna when receiving a signal indicating that the data transmission is allowed, and selecting a second antenna that is difference from the first antenna and transmitting a RACH burst through the second antenna when receiving a signal indicating that the data transmission is not allowed, and a transmitting apparatus of a mobile station having the plurality of antennas. According to the present invention, the RACH burst and user packet data are transmitted by using a mobile station having a plurality of antennas in an LTE-applied OFDMA system, and therefore data transmission can be performed with a wide bandwidth and high data rate and a deep fading period that may occur during the data transmission can be reduced, thereby preventing call dropping and improving data transmission performance.