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구분 출원국
출원년도 ~ 키워드

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등록 OFDMA에서의 패킷 데이터 전송 방법 및 장치

OFDMA에서의 패킷 데이터 전송 방법 및 장치
이미지 확대
발명자
김일규, 김영훈, 박형근, 장갑석, 좌혜경, 신은정, 이문식, 방승찬
출원번호
12094238 (2006.11.17)
공개번호
20080316913 (2008.12.25)
등록번호
8369300 (2013.02.05)
출원국
미국
협약과제
초록
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.
KSP 제안 키워드
Call Dropping, Data transmission, Deep fading, High data rate, Mobile station(MS), TRANSMIT DIVERSITY, Wide bandwidth, base station(BS), data rate, packet data, transmission method, transmission performance
패밀리
 
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