会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 36. 发明授权
    • Method and apparatus for transmitting by using transmit diversity at DFT spread OFDMA
    • 通过使用DFT扩展OFDMA的发送分集进行发送的方法和装置
    • US08369300B2
    • 2013-02-05
    • US12094238
    • 2006-11-17
    • Il-Gyu KimHyeong-Geun ParkKap-Seok ChangYoung-Hoon KimSeung-Chan BangEun-Jeong ShinHye-Kyung JwaMoon-sik Lee
    • Il-Gyu KimHyeong-Geun ParkKap-Seok ChangYoung-Hoon KimSeung-Chan BangEun-Jeong ShinHye-Kyung JwaMoon-sik Lee
    • H04B7/208
    • H04B7/061H04L1/06H04L1/1893H04L5/0023H04L5/0044
    • 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.
    • 本发明涉及OFDMA系统中的分组数据传输方法及其装置。 本发明提供了一种用户分组数据传输方法,包括:生成用于信道信息估计的RACH脉冲串,选择多个天线中的第一天线,通过第一天线发送RACH脉冲串到基站;从基站接收数据传输接收信号; 所述基站响应于所述RACH突发,当接收到指示允许所述数据传输的信号时,通过所述第一天线发送用户分组数据,并且选择与所述第一天线不同并且通过所述第一天线发送RACH突发的第二天线 在接收到指示不允许数据传输的信号的第二天线以及具有多个天线的移动台的发送装置。 根据本发明,通过在LTE应用的OFDMA系统中使用具有多个天线的移动台来发送RACH突发和用户分组数据,因此可以以宽带宽和高数据速率进行数据传输,并且 可以减少在数据传输期间可能发生的深度衰落周期,从而防止呼叫丢弃并提高数据传输性能。