상세정보
등록 ＯＦＤＭＡ에서의 패킷 데이터 전송 방법 및 장치
- 출원번호
- 12094238 (2006.11.17)
- 공개번호
- 20080316913 (2008.12.25)
- 등록번호
- 8369300 (2013.02.05)
- 출원국
- 미국
- 협약과제
- 05MM1100, 4세대 이동통신 기술개발, 황승구
- 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
| 구분 | 특허 | 출원국 | KIPRIS |
|---|---|---|---|
| 등록 | DFT-S-OFDM 변조된 랜덤액세스 송신 다이버시티 방법 | ||
| 등록 | DFT-S-OFDM 변조된 랜덤액세스 송신 다이버시티 방법 | 독일 | |
| 등록 | DFT-S-OFDM 변조된 랜덤액세스 송신 다이버시티 방법 | 영국 | |
| 등록 | DFT-S-OFDM 변조된 랜덤액세스 송신 다이버시티 방법 | 이탈리아 | |
| 등록 | DFT-S-OFDM 변조된 랜덤액세스 송신 다이버시티 방법 | 프랑스 |