公开(公告)号：US08644436B2

公开(公告)日：2014-02-04

申请号：US13399457

申请日：2012-02-17

申请人： Reza Mardani ,  Gurudutt Hosangadi ,  Patrice Saintot

发明人： Reza Mardani ,  Gurudutt Hosangadi ,  Patrice Saintot

IPC分类号： H04B14/06

CPC分类号： H04L25/0244 ,  H04B1/7115 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/03006

摘要： In one embodiment, an apparatus for channel estimation includes a first receiver configured to obtain a first channel estimate associated with a communication channel between the apparatus and a user equipment. The apparatus also includes a second receiver. The second receiver includes a channel estimation unit and a normal receiver processing unit. The channel estimation unit is configured to compute a second channel estimate of channel conditions associated with the communication channel. The normal receiver processing unit is configured to compute weights using the second channel estimation unit. The channel estimation unit is further configured to obtain a delay between the obtaining of the first channel estimate and the computing of the weights, and to compute the second channel estimate using the delay and the first channel estimate.

摘要翻译： 在一个实施例中，一种用于信道估计的装置包括：第一接收机，被配置为获得与所述设备和用户设备之间的通信信道相关联的第一信道估计。 该装置还包括第二接收器。 第二接收机包括信道估计单元和正常接收机处理单元。 信道估计单元被配置为计算与通信信道相关联的信道条件的第二信道估计。 正常接收机处理单元被配置为使用第二信道估计单元来计算加权。 信道估计单元还被配置为获得第一信道估计的获得和权重的计算之间的延迟，并且使用延迟和第一信道估计来计算第二信道估计。

公开(公告)号：US20130216011A1

公开(公告)日：2013-08-22

申请号：US13399457

申请日：2012-02-17

申请人： Reza Mardani ,  Gurudutt Hosangadi ,  Patrice Saintot

发明人： Reza Mardani ,  Gurudutt Hosangadi ,  Patrice Saintot

IPC分类号： H04L1/02 ,  H03D1/04

CPC分类号： H04L25/0244 ,  H04B1/7115 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/03006

摘要： In one embodiment, an apparatus for channel estimation includes a first receiver configured to obtain a first channel estimate associated with a communication channel between the apparatus and a user equipment. The apparatus also includes a second receiver. The second receiver includes a channel estimation unit and a normal receiver processing unit. The channel estimation unit is configured to compute a second channel estimate of channel conditions associated with the communication channel. The normal receiver processing unit is configured to compute weights using the second channel estimation unit. The channel estimation unit is further configured to obtain a delay between the obtaining of the first channel estimate and the computing of the weights, and to compute the second channel estimate using the delay and the first channel estimate.

摘要翻译： 在一个实施例中，一种用于信道估计的装置包括：第一接收机，被配置为获得与所述设备和用户设备之间的通信信道相关联的第一信道估计。 该装置还包括第二接收器。 第二接收机包括信道估计单元和正常接收机处理单元。 信道估计单元被配置为计算与通信信道相关联的信道条件的第二信道估计。 正常接收机处理单元被配置为使用第二信道估计单元来计算加权。 信道估计单元还被配置为获得第一信道估计的获得和权重的计算之间的延迟，并且使用延迟和第一信道估计来计算第二信道估计。

公开(公告)号：US07894514B2

公开(公告)日：2011-02-22

申请号：US11238847

申请日：2005-09-29

申请人： Francis Dominique ,  Laurence E. Mailaender ,  Reza Mardani ,  Francis Joseph Mullany

发明人： Francis Dominique ,  Laurence E. Mailaender ,  Reza Mardani ,  Francis Joseph Mullany

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03019 ,  H04B1/7115 ,  H04L2025/03585

摘要： A receiver device for use in a wireless communication system (20) includes a rake receiver (32) and an equalizer receiver (34). A controller (36) selects one of the rake receiver (32) or the equalizer receiver (34) for processing a received signal. In some situations, the rake receiver (32) will provide better performance. In other situations, the equalizer receiver (34) will provide better performance. One embodiment includes a plurality of equalizers (34A, 34B). One of the equalizers processes a data packet from a received signal while another one of the equalizers trains for processing a signal from a subsequent scheduled user. Another example embodiment includes controlling an equalizer length based on a delay span or another selected channel metric.

摘要翻译： 一种在无线通信系统（20）中使用的接收机设备包括耙式接收器（32）和均衡器接收器（34）。 控制器（36）选择耙式接收器（32）或均衡器接收器（34）中的一个来处理接收到的信号。 在某些情况下，耙式接收器（32）将提供更好的性能。 在其他情况下，均衡器接收器（34）将提供更好的性能。 一个实施例包括多个均衡器（34A，34B）。 一个均衡器处理来自接收信号的数据分组，而另一个均衡器用于处理来自后续调度用户的信号。 另一示例性实施例包括基于延迟范围或另一选择的信道度量来控制均衡器长度。

公开(公告)号：US06496546B1

公开(公告)日：2002-12-17

申请号：US09115933

申请日：1998-07-15

申请人： Stephen Alan Allpress ,  Sridhar Arunachalam ,  Reza Mardani ,  Carmine James Pagano, II ,  Joseph Anthony Tarallo ,  Tiejun Shan

发明人： Stephen Alan Allpress ,  Sridhar Arunachalam ,  Reza Mardani ,  Carmine James Pagano, II ,  Joseph Anthony Tarallo ,  Tiejun Shan

IPC分类号： H04B116

CPC分类号： H04B1/0017 ,  H04B1/0003 ,  H04B1/001 ,  H04B1/406

摘要： A technique for receiving and transmitting wireless telecommunications through use of a generic architecture is disclosed. The present invention mitigates the complexity of different transceiver operations by allowing a generic architecture to be used in a variety of situations with different channels and different telecommunications standards. An illustrative embodiment of the present invention comprises: receiving uplink analog RF signals at a base station; converting the uplink analog wide-band RF signals into IF uplink digital signals at an analog-to-digital converter; converting the IF uplink digital signals into a number of uplink channels; and demodulating selected narrow-band uplink channels from the total number of narrow-band uplink channels.

摘要翻译： 公开了一种通过使用通用架构来接收和发送无线电信的技术。 本发明通过允许将通用架构用于具有不同信道和不同电信标准的各种情况来减轻不同收发器操作的复杂性。 本发明的说明性实施例包括：在基站处接收上行链路模拟RF信号; 在模拟 - 数字转换器将上行链路模拟宽带RF信号转换成IF上行链路数字信号; 将IF上行链路数字信号转换成多个上行链路信道; 以及从所述窄带上行链路信道的总数中解调所选择的窄带上行链路信道。

公开(公告)号：US20070071070A1

公开(公告)日：2007-03-29

申请号：US11238847

申请日：2005-09-29

申请人： Francis Dominique ,  Laurence Mailaender ,  Reza Mardani ,  Francis Mullany

发明人： Francis Dominique ,  Laurence Mailaender ,  Reza Mardani ,  Francis Mullany

IPC分类号： H04B1/00 ,  H03H7/30

CPC分类号： H04L25/03019 ,  H04B1/7115 ,  H04L2025/03585

摘要： A receiver device for use in a wireless communication system (20) includes a rake receiver (32) and an equalizer receiver (34). A controller (36) selects one of the rake receiver (32) or the equalizer receiver (34) for processing a received signal. In some situations, the rake receiver (32) will provide better performance. In other situations, the equalizer receiver (34) will provide better performance. One embodiment includes a plurality of equalizers (34A, 34B). One of the equalizers processes a data packet from a received signal while another one of the equalizers trains for processing a signal from a subsequent scheduled user. Another example embodiment includes controlling an equalizer length based on a delay span or another selected channel metric.

摘要翻译： 一种在无线通信系统（20）中使用的接收机设备包括耙式接收器（32）和均衡器接收器（34）。 控制器（36）选择耙式接收器（32）或均衡器接收器（34）中的一个来处理接收到的信号。 在某些情况下，耙式接收器（32）将提供更好的性能。 在其他情况下，均衡器接收器（34）将提供更好的性能。 一个实施例包括多个均衡器（34A，34B）。 一个均衡器处理来自接收信号的数据分组，而另一个均衡器用于处理来自后续调度用户的信号。 另一示例性实施例包括基于延迟范围或另一选择的信道度量来控制均衡器长度。

公开(公告)号：US06411653B1

公开(公告)日：2002-06-25

申请号：US09356261

申请日：1999-07-16

申请人： Sridhar Arunachalam ,  Reza Mardani

发明人： Sridhar Arunachalam ,  Reza Mardani

IPC分类号： H04B712

CPC分类号： H04B1/0021 ,  H04B1/04 ,  H04B1/28 ,  H04L5/06

摘要： A technique for reducing computational and storage requirements of cascaded polyphase DFT-filter bank for receiving and transmitting telecommunications is disclosed. The cascaded polyphase DFT-filter bank is designed by specifically selecting a range of radio spectrum for reducing computational and storage requirements of the cascaded polyphase DFT-filter bank operation.

摘要翻译： 公开了用于减少用于接收和发送电信的级联多相DFT滤波器组的计算和存储要求的技术。 级联多相DFT滤波器组通过专门选择一系列无线电频谱来设计，以减少级联多相DFT滤波器组操作的计算和存储要求。