专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009098652A1 METHOD FOR RETRIEVING DATA FROM ULTRA WIDEBAND RADIO TRANSMISSION SIGNALS AND RECEIVER IMPLEMENTING SAID METHOD 审中-公开
标题翻译：从超宽带无线电传输信号中检索数据的方法和接收机实现方法
公开(公告)号：WO2009098652A1
公开(公告)日：2009-08-13
申请号：PCT/IB2009/050468
申请日：2009-02-05
申请人： ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) , FLURY, Manuel , MERZ, Ruben , LE BOUDEC, Jean-Yves
发明人： FLURY, Manuel , MERZ, Ruben , LE BOUDEC, Jean-Yves
IPC分类号： H04B1/69
CPC分类号： H04B1/719 , H04B1/71637
摘要： The present invention concerns a receiver and a method for retrieving data from Ultra wideband radio transmission signals received by a receiver and transmitted in packets containing at least a preamble known to the receiver and a payload containing data unknown to the receiver. The payload data is formed of at least one burst containing at least one pulse. The method comprises the following steps : • receiving a signal corresponding to the preamble of a packet by a receiver; • determining the energy of the received signal; • determining weighting coefficients pm from the energy of the received signal; • receiving a signal corresponding to the payload of a packet by a receiver; • determining the energy of the received signal; • calculating a threshold depending on the weighting coefficients; • applying a decision rule based on the sampled energy, weighted by said weighting coefficients pm and depending on said calculated threshold.
摘要翻译：本发明涉及一种用于从由接收机接收的超宽带无线电传输信号中检索数据的接收机和方法，所述数据包含至少包含接收机已知的前导码和包含接收机未知的数据的有效载荷。有效负载数据由至少一个包含至少一个脉冲的脉冲组成。该方法包括以下步骤：接收与数据包前导码相对应的信号; 确定接收信号的能量; 从接收信号的能量确定加权系数pm; 由接收机接收对应于分组的有效载荷的信号; 确定接收信号的能量; 根据加权系数计算阈值; 基于由所述加权系数pm加权并取决于所计算的阈值的采样能量来应用决策规则。

2. 发明申请

WO2007001867A3 OPTIMAL WEIGHTS FOR MMSE SPACE-TIME EQUALIZER OF MULTICODE CDMA SYSTEM 审中-公开
公开(公告)号：WO2007001867A3
公开(公告)日：2007-01-04
申请号：PCT/US2006/023210
申请日：2006-06-14
申请人： QUALCOMM INCORPORATED , KIM, Byoung-Hoon , FLURY, Manuel , ZHANG, Xiaoxia
发明人： KIM, Byoung-Hoon , FLURY, Manuel , ZHANG, Xiaoxia
IPC分类号： H04B1/69 , H04B7/216 , H03H7/30 , H04L27/06 , H04L27/22
摘要： Aspects of the invention provide an enhanced chip-level linear space-time equalizer 118 for multiple-input-multiple-output (MIMO) multi-code CDMA systems reusing same spreading codes in different transmit antennas 114. Reuse of the spreading codes at the transmitter 104, 204 creates an on-time inter-stream interference component (or cross-talk among distinct transmit antenna signals) which reuse the same spreading code as the desired signal in the soft metric sequence of the MIMO CDMA receiver after MMSE space-time equalization. The equalizer 118 has a MMSE weighting vector that takes the despreading effect into account.

3. 发明申请

WO2006094141A3 METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
公开(公告)号：WO2006094141A3
公开(公告)日：2006-09-08
申请号：PCT/US2006/007455
申请日：2006-03-01
申请人： QUALCOMM INCORPORATED , KIM, Byoung-hoon , FLURY, Manuel
发明人： KIM, Byoung-hoon , FLURY, Manuel
IPC分类号： H04B1/707 , H04L25/03 , H04B7/08
摘要： Successive interference cancellation is performed with improved computational efficiency while offering performance approaching that of full CRC-based successive interference cancellation. In a "blind" interference cancellation technique, reconstructed streams are used for interference cancellation without regard to whether the reconstructed streams were properly decoded. In a "semi-blind" interference cancellation technique, decoder outputs from linear equalization can be used instead of decoder outputs from successive interference cancellation in those cases where linear equalization produces accurate decoding but successive interference cancellation does not.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式