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    • 5. 发明申请
    • TRANSMISSION SCHEMES FOR MULTI-ANTENNA COMMUNICATION SYSTEMS UTILIZING MULTI-CARRIER MODULATION
    • 使用多载波调制的多天线通信系统的传输方案
    • US20100003931A1
    • 2010-01-07
    • US12558073
    • 2009-09-11
    • Ranganathan KrishnanAnand D. SubramaniamTamer Kadous
    • Ranganathan KrishnanAnand D. SubramaniamTamer Kadous
    • H04B7/02
    • H04W52/42H04B7/0667H04L5/0023H04L5/0048
    • Pilot and data transmission schemes for multi-antenna communication systems utilizing multi-carrier modulation are provided. Subband multiplexing is used to avoid interference resulting from transmitting multiple signals simultaneously from multiple antennas. M usable subbands are initially arranged to form multiple groups of subbands, with each group including a different subset of the usable subbands. Each of T transmit antennas is then assigned one or possibly more subband groups for pilot transmission and typically one subband group for data transmission. Pilot and data may then be transmitted from each antenna on the subbands assigned to that antenna for pilot and data transmission. For each transmit antenna, the transmit power for each assigned subband may be scaled higher such that all of the total transmit power available for the antenna is used for transmission. Pilot and/or data may be transmitted simultaneously from all T antennas on all usable subbands without causing mutual interference.
    • 提供了利用多载波调制的多天线通信系统的导频和数据传输方案。 使用子带复用来避免从多个天线同时发送多个信号导致的干扰。 M个可用的子带最初被布置成形成多个子带组,每组包括可用子带的不同子集。 每个T发射天线然后被分配一个或可能更多的子带组用于导频传输,并且通常用于一个子带组用于数据传输。 然后可以从分配给该天线的子带上的每个天线发送导频和数据用于导频和数据传输。 对于每个发射天线,每个分配的子带的发射功率可以被缩放更高,使得可用于天线的全部发射功率被用于传输。 导频和/或数据可以在所有可用子带上从所有T个天线同时传输而不引起相互干扰。