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1. 发明申请

WO2004040789A3 CASCADE FILTER RECEIVER FOR DS-CDMA COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于DS-CDMA通信系统的级联滤波器接收器
公开(公告)号：WO2004040789A3
公开(公告)日：2004-07-22
申请号：PCT/CA0301650
申请日：2003-10-29
申请人： AXIOCOM INC , MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
发明人： MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
IPC分类号： H04B1/707 , H04L25/03
CPC分类号： H04B1/7105 , H04B1/71075 , H04L25/03305 , H04L25/03331 , H04L2025/03464 , H04L2025/03484 , H04L2025/03509 , H04L2025/03617
摘要： A description of an adaptable multiuser processing unit applied to Direct-Sequence Code Division Multiple Access (DS-CDMA) is disclosed. The adaptable multiuser processing unit consists of cascade filters where each filter is adapted independently. The adaptation of a first filter is based on the error between the output of the first filter and a desired signal, in the same way for the other filters. The adaptation is realized follow a direct, without channel identification, or indirect, with channel identification, procedure. The first filter receives the input signal in Baud (1/T) or Fractionally (k/T) spaced and the last filter gives to the MUD output the decisions on the symbols estimated for each users. A decision feedback may be applied to the input of each filter such as the conventional Decision Feedback Equalizer (DFE). In more, each filter can be linear or nonlinear.
摘要翻译：公开了应用于直接序列码分多址（DS-CDMA）的可适应多用户处理单元的描述。自适应多用户处理单元由级联滤波器组成，其中每个滤波器都是独立调整的。第一个滤波器的自适应基于第一个滤波器的输出和所需信号之间的误差，对于其他滤波器也是如此。自适应是直接实现的，没有通道识别，或间接通道识别，程序。第一个滤波器以波特（1 / T）或分数（k / T）间隔接收输入信号，最后一个滤波器向MUD输出提供关于为每个用户估计的符号的决定。决策反馈可以应用于每个滤波器的输入，例如传统的判决反馈均衡器（DFE）。另外，每个滤波器可以是线性或非线性的。

2. 发明申请

WO2004105264A3 SYSTEM FOR EQUALISATION USING PILOT CANCELLATION 审中-公开
标题翻译：使用引航取消均衡化的系统
公开(公告)号：WO2004105264A3
公开(公告)日：2005-09-22
申请号：PCT/CA2004000757
申请日：2004-05-21
申请人： AXIOCOM INC , MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
发明人： MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B1/7105 , H04B2201/70701
摘要： An adaptive procedure that optimizes the parameters of a receiver filter such as a Multiuser Detection (MUD) applied to Direct-Sequence Code Division Multiple Access (DS-CDMA) is disclosed. This procedure takes into account the constraints imposed by the absence of training data sequences sent by the transmitter and required to adapt the filter parameters at the receiver. The adaptation consists in using two distinct data sequences transmitted through the same channel; one data sequence is transmitted as payload data and a second data sequence is transmitted as training data used to adapt the filter parameters at the receiver. Parameters of the receiver filter are adapted in presence of varying channels at the same time as the data information sequences are transmitted. The adaptation is realized following a mixed adaptation procedure based on a direct (without channel identification) and indirect (with channel identification) scheme. The invention is described for UMTS (Universal Mobile Telecommunications System) application in cellular communications system.
摘要翻译：公开了一种优化诸如应用于直接序列码分多址（DS-CDMA）的多用户检测（MUD）的接收机滤波器的参数的自适应过程。该过程考虑了由发射机发送的训练数据序列的不存在而施加的限制，并且需要在接收机处适配滤波器参数。适应包括使用通过相同信道传输的两个不同的数据序列; 作为有效载荷数据发送一个数据序列，作为训练数据发送第二数据序列，用于在接收机处适配滤波器参数。在发送数据信息序列的同时，接收机滤波器的参数适应存在变化的信道。基于直接（无信道识别）和间接（具有信道识别）方案的混合适配过程来实现适配。针对蜂窝通信系统中的UMTS（通用移动电信系统）应用描述了本发明。

3. 发明专利

AU2003278043A1 CASCADE FILTER RECEIVER FOR DS-CDMA COMMUNICATION SYSTEMS 未知
公开(公告)号：AU2003278043A1
公开(公告)日：2004-05-25
申请号：AU2003278043
申请日：2003-10-29
申请人： AXIOCOM INC
发明人： MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
IPC分类号： H04B1/707 , H04L25/03
摘要： A description of an adaptable multiuser processing unit applied to Direct-sequence Code Division Multiple Access (DS-CDMA) is disclosed. The adaptable multiuser processing unit consists of cascade filters where each filter is adapted independently. The adaptation of a first filter is based on the error between the output of the first filter and a desired signal, in the same way for the other filters. The adaptation is realized follow a direct, without channel identification, or indirect, with channel identification, procedure. The first filter receives the input signal in Baud (1/T) or Fractionally (k/T) spaced and the last filter gives to the MUD output the decisions on the symbols estimated for each users. A decision feedback may be applied to the input of each filter such as the conventional Decision Feedback Equalizer (DFE). In more, each filter can be linear or nonlinear.

4. 发明专利

AU2003278043A8 Cascade filter receiver for ds-cdma communication systems 未知
公开(公告)号：AU2003278043A8
公开(公告)日：2004-05-25
申请号：AU2003278043
申请日：2003-10-29
申请人： AXIOCOM INC
发明人： DAHMANE ADEL-OMAR , MASSICOTTE DANIEL
IPC分类号： H04B1/707 , H04L25/03
摘要： A description of an adaptable multiuser processing unit applied to Direct-sequence Code Division Multiple Access (DS-CDMA) is disclosed. The adaptable multiuser processing unit consists of cascade filters where each filter is adapted independently. The adaptation of a first filter is based on the error between the output of the first filter and a desired signal, in the same way for the other filters. The adaptation is realized follow a direct, without channel identification, or indirect, with channel identification, procedure. The first filter receives the input signal in Baud (1/T) or Fractionally (k/T) spaced and the last filter gives to the MUD output the decisions on the symbols estimated for each users. A decision feedback may be applied to the input of each filter such as the conventional Decision Feedback Equalizer (DFE). In more, each filter can be linear or nonlinear.

5. 发明公开

EP1733488A4 METHOD AND SYSTEM FOR MULTI-USER CHANNEL ESTIMATION IN DS-CDMA SYSTEMS 审中-公开
标题翻译：方法及系统DS-CDMA系统多用户信道评估
公开(公告)号：EP1733488A4
公开(公告)日：2010-07-14
申请号：EP05734303
申请日：2005-04-08
申请人： AXIOCOM INC
发明人： AHMED-OUAMEUR MESSAOUD , MASSICOTTE DANIEL
IPC分类号： H04L25/02 , H04B1/707 , H04B7/005 , H04B7/204 , H04B7/216 , H04B17/00
CPC分类号： H04L25/0204 , H04B1/7105 , H04B17/3913 , H04L25/0212 , H04L25/025

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