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公开(公告)号:US09237560B2
公开(公告)日:2016-01-12
申请号:US14280051
申请日:2014-05-16
Applicant: Agency for Science, Technology and Research
Inventor: Lokesh Bheema Thiagarajan , Sumei Sun , Chau Yuen , Quee Seng Tony Quek
CPC classification number: H04W72/0406 , H04B7/0626 , H04B7/155 , H04B7/2606 , H04L1/0618 , H04L25/0204 , H04L25/0224 , H04L25/0226 , H04L27/2602 , H04L27/2607 , H04L27/2613
Abstract: Methods and systems are proposed for transmitting data from a source (110) to a destination (130) via a relay station (120) having multiple antennae (122, 124). The relay station (120) receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (122, 124), so producing multiple respective received signals. In certain embodiments, the relay station (120) removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station (120) removes only a portion of the first cyclic prefix. In either case, the relay station (120) may apply space-time coding to generate second signals, which it transmits to the destination (130), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination (130) to decode the data.
Abstract translation: 提出了用于经由具有多个天线(122,124)的中继站(120)从源(110)向目的地(130)发送数据的方法和系统。 中继站(120)从源接收包含数据的消息和第一循环前缀。 它使用其天线(122,124)中的每一个,从而产生多个相应的接收信号。 在某些实施例中,中继站(120)从接收到的信号中去除第一循环前缀,用新的前缀替换它。 在其他实施例中,中继站(120)仅移除第一循环前缀的一部分。 在任一种情况下,中继站(120)可以应用空时编码来生成第二信号,其发送到提取数据的目的地(130)。 还提出了用于估计信道的参数以使目的地(130)解码数据的方法。
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公开(公告)号:US20140247770A1
公开(公告)日:2014-09-04
申请号:US14280051
申请日:2014-05-16
Applicant: Agency for Science, Technology and Research
Inventor: Lokesh Bheema Thiagarajan , Sumei Sun , Chau Yuen , Quee Seng Tony Quek
CPC classification number: H04W72/0406 , H04B7/0626 , H04B7/155 , H04B7/2606 , H04L1/0618 , H04L25/0204 , H04L25/0224 , H04L25/0226 , H04L27/2602 , H04L27/2607 , H04L27/2613
Abstract: Methods and systems are proposed for transmitting data from a source (110) to a destination (130) via a relay station (120) having multiple antennae (122, 124). The relay station (120) receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (122, 124), so producing multiple respective received signals. In certain embodiments, the relay station (120) removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station (120) removes only a portion of the first cyclic prefix. In either case, the relay station (120) may apply space-time coding to generate second signals, which it transmits to the destination (130), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination (130) to decode the data.
Abstract translation: 提出了用于经由具有多个天线(122,124)的中继站(120)从源(110)向目的地(130)发送数据的方法和系统。 中继站(120)从源接收包含数据的消息和第一循环前缀。 它使用其天线(122,124)中的每一个,因此产生多个相应的接收信号。 在某些实施例中,中继站(120)从接收到的信号中去除第一循环前缀,用新的前缀替换它。 在其他实施例中,中继站(120)仅移除第一循环前缀的一部分。 在任一种情况下,中继站(120)可以应用空间 - 时间编码来生成第二信号,其发送到提取数据的目的地(130)。 还提出了用于估计信道的参数以使目的地(130)解码数据的方法。
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