公开(公告)号：US08416731B2

公开(公告)日：2013-04-09

申请号：US12768016

申请日：2010-04-27

申请人： Chandra S. Bontu ,  Amin Mobasher

发明人： Chandra S. Bontu ,  Amin Mobasher

IPC分类号： H04B7/14 ,  H04J1/10 ,  H04J3/08

CPC分类号： H04W24/02 ,  H04B7/15557 ,  H04B7/15592 ,  H04B7/26 ,  H04L1/0003 ,  H04L1/0077 ,  H04L1/1816 ,  H04L1/1819 ,  H04L2001/0097 ,  H04W40/22 ,  H04W88/04

摘要： Methods, devices and systems for improved transmission in a remote node-based wireless communication system is provided. In one embodiment, a method of wireless communication comprises receiving a downlink signal from a first node, demodulating said received downlink signal, generating a channel quality measurement (“CQM”) value of said demodulated downlink signal, determining said CQM value exceeds a first threshold, modulating said demodulated downlink signal to form a processed downlink signal, and cooperatively transmitting said processed downlink signal with said first node to a wireless device.

摘要翻译： 提供了用于在基于远程节点的无线通信系统中改进传输的方法，设备和系统。 在一个实施例中，一种无线通信方法包括从第一节点接收下行链路信号，解调所述接收到的下行链路信号，产生所述解调下行链路信号的信道质量测量（CQM）值，确定所述CQM值超过第一阈值，调制 所述解调的下行链路信号形成经处理的下行链路信号，并且将所述经处理的下行链路信号与所述第一节点协作发送到无线设备。

公开(公告)号：US07126939B2

公开(公告)日：2006-10-24

申请号：US09737888

申请日：2000-12-15

申请人： Peter A. Barany ,  Chandra S. Bontu ,  Shamim Akbar Rahman

发明人： Peter A. Barany ,  Chandra S. Bontu ,  Shamim Akbar Rahman

IPC分类号： H04L12/36 ,  H04Q7/00 ,  H04Q7/28 ,  H04Q7/20

CPC分类号： H04L65/608 ,  H04L29/06027 ,  H04L65/1069 ,  H04W74/0866 ,  H04W76/12 ,  H04W76/32 ,  H04W80/00

摘要： A communications system includes a wireless access network that is coupled to a packet-based data network. Packet-based calls may be established between a mobile station coupled to the wireless access network and a network endpoint coupled to the data network. For efficient call setup and call release, call control signaling, such as Session Initiation Protocol (SIP) messages and Resource Reservation Protocol (RSVP) messages, are carried in traffic channels over the wireless access network.

公开(公告)号：US06445745B1

公开(公告)日：2002-09-03

申请号：US09306434

申请日：1999-05-06

申请人： Chandra S. Bontu ,  Yonghai Gu ,  Shavantha Kularatna ,  Peter Barany

发明人： Chandra S. Bontu ,  Yonghai Gu ,  Shavantha Kularatna ,  Peter Barany

IPC分类号： H04L2718

CPC分类号： H04L27/18 ,  H04L27/0008

摘要： A method for phase encoding DPSK and N-PSK which maintains phase continuity and which does not require any reference symbols when using N-PSK. A sequence of known DPSK phases are encoded with respect to an initial phase. The N-PSK phases are then all offset by this same initial phase. The known DPSK phases can be used at a receiver to determine a sum consisting of the initial phase and any further phase shift introduced by the channel, and this sum is used to decode the unknown N-PSK phases. The method is more generally applicable to any case where a switch between a phase encoding method which requires an absolute phase reference and a phase encoding method which does not have an absolute phase reference is to be implemented on a single carrier or channel.

摘要翻译： 一种用于相位编码的方法，用于维持相位连续性并且在使用N-PSK时不需要任何参考符号的DPSK和N-PSK。 已知的DPSK相位序列相对于初始相位进行编码。 然后，N-PSK相位都被相同的初始相位偏移。 已知的DPSK相位可以在接收机处使用以确定由初始相位和由信道引入的任何另外的相移组成的和，并且该和用于解码未知的N-PSK相位。 该方法更通常适用于在单载波或信道上实现需要绝对相位基准的相位编码方法和不具有绝对相位基准的相位编码方法之间的切换的情况。

公开(公告)号：US20110200126A1

公开(公告)日：2011-08-18

申请号：US12705568

申请日：2010-02-12

申请人： Chandra S. Bontu ,  Amin Mobasher

发明人： Chandra S. Bontu ,  Amin Mobasher

IPC分类号： H04L27/28 ,  H04B15/00

CPC分类号： H04L25/0232 ,  H04L5/0023

摘要： Channel estimation and data detection in a wireless communication system in the presence of inter-cell interference is provided. In one embodiment, a method for channel estimation and data detection in a wireless communication system, comprising receiving a signal, wherein said signal is composed of a data signal, a desired reference signal and an interference reference signal; selecting a channel estimator using said desired reference signal, said interference reference signal or both; applying said selected channel estimator to said desired reference signal, said interference reference signal or both to generate one or more reference signal channel estimate weights; generating one or more data channel estimate weights using said reference signal channel estimate weights; selecting a data detector using said reference signal channel estimate weights, said data channel estimate weights or both; and detecting said data signal using said selected data detector, wherein said selected data detector uses said reference signal channel estimate weights, said data channel estimate weights or both.

摘要翻译： 提供了存在小区间干扰的无线通信系统中的信道估计和数据检测。 在一个实施例中，一种在无线通信系统中用于信道估计和数据检测的方法，包括接收信号，其中所述信号由数据信号，期望的参考信号和干扰参考信号组成; 使用所述期望参考信号，所述干扰参考信号或两者选择信道估计器; 将所述选择的信道估计器应用于所述期望参考信号，所述干扰参考信号或两者以产生一个或多个参考信号信道估计权重; 使用所述参考信号信道估计权重来生成一个或多个数据信道估计权重; 使用所述参考信号信道估计权重，所述数据信道估计权重或两者来选择数据检测器; 以及使用所述选择的数据检测器检测所述数据信号，其中所述选择的数据检测器使用所述参考信号信道估计权重，所述数据信道估计权重或两者。

公开(公告)号：US20090310540A1

公开(公告)日：2009-12-17

申请号：US12545503

申请日：2009-08-21

申请人： Peter A. Barany ,  Chandra S. Bontu

发明人： Peter A. Barany ,  Chandra S. Bontu

IPC分类号： H04W40/00 ,  H04J3/24

CPC分类号： H04B7/2656

摘要： A mobile communications system includes a radio access network, such as an Enhanced General Packet Radio Service (EGPRS) network, in which mobile stations are able to enter into a discontinuous transmission (DTX) mode. During DTX mode of a first mobile station that is allocated a channel portion (e.g., a time slot of a frame), the radio access network is able to multiplex traffic from another mobile station onto the same channel portion. A mechanism is provided to enable the first mobile station to send a request for re-allocation of the channel portion. The request includes a real-time fast access associated control channel (RTFACCH) resource request message (RTRRM). In response to the RTRRM, the radio access network sends an RTFACCH resource assignment message (RTUAM). An interleaving scheme is also provided for half-rate mobile stations, in which one set of traffic frames are interleaved over plural bursts according to a first algorithm and a second set of traffic frames are interleaved over plural bursts according to a second algorithm.

摘要翻译： 移动通信系统包括诸如增强型通用分组无线业务（EGPRS）网络的无线电接入网络，其中移动站能够进入不连续传输（DTX）模式。 在分配了信道部分（例如，帧的时隙）的第一移动台的DTX模式期间，无线电接入网络能够将来自另一移动站的业务复用到同一信道部分上。 提供了一种机制，以使得第一移动台能够发送对信道部分的重新分配的请求。 该请求包括实时快速访问相关控制信道（RTFACCH）资源请求消息（RTRRM）。 响应于RTRRM，无线接入网络发送RTFACCH资源分配消息（RTUAM）。 还提供了一种用于半速率移动站的交织方案，其中根据第一算法在多个突发中交织一组业务帧，并且根据第二算法在多个突发上交织第二组业务帧。

公开(公告)号：US07586949B1

公开(公告)日：2009-09-08

申请号：US09715787

申请日：2000-11-17

申请人： Peter A. Barany ,  Chandra S. Bontu

发明人： Peter A. Barany ,  Chandra S. Bontu

IPC分类号： H04J3/24

CPC分类号： H04B7/2656

摘要： A mobile communications system includes a radio access network, such as an Enhanced General Packet Radio Service (EGPRS) network, in which mobile stations are able to enter into a discontinuous transmission (DTX) mode. During DTX mode of a first mobile station that is allocated a channel portion (e.g., a time slot of a frame), the radio access network is able to multiplex traffic from another mobile station onto the same channel portion. A mechanism is provided to enable the first mobile station to send a request for re-allocation of the channel portion. The request includes a real-time fast access associated control channel (RTFACCH) resource request message (RTRRM). In response to the RTRRM, the radio access network sends an RTFACCH resource assignment message (RTUAM). An interleaving scheme is also provided for half-rate mobile stations, in which one set of traffic frames are interleaved over plural bursts according to a first algorithm and a second set of traffic frames are interleaved over plural bursts according to a second algorithm.

摘要翻译： 移动通信系统包括诸如增强型通用分组无线业务（EGPRS）网络的无线电接入网络，其中移动站能够进入不连续传输（DTX）模式。 在分配了信道部分（例如，帧的时隙）的第一移动台的DTX模式期间，无线电接入网络能够将来自另一移动站的业务复用到同一信道部分上。 提供了一种机制，以使得第一移动台能够发送对信道部分的重新分配的请求。 该请求包括实时快速访问相关控制信道（RTFACCH）资源请求消息（RTRRM）。 响应于RTRRM，无线接入网络发送RTFACCH资源分配消息（RTUAM）。 还提供了一种用于半速率移动站的交织方案，其中根据第一算法在多个突发中交织一组业务帧，并且根据第二算法在多个突发上交织第二组业务帧。

公开(公告)号：US20090131056A1

公开(公告)日：2009-05-21

申请号：US12275621

申请日：2008-11-21

申请人： Chandra S. Bontu ,  Prabaharan Kanesalingam ,  William Edward Illidge ,  Devaki Chandramouli ,  Stephen P. Leung

发明人： Chandra S. Bontu ,  Prabaharan Kanesalingam ,  William Edward Illidge ,  Devaki Chandramouli ,  Stephen P. Leung

IPC分类号： H04W36/00

CPC分类号： H04W36/0072 ,  H04W36/0083 ,  H04W36/08 ,  H04W92/20

摘要： To perform a handover of a mobile station from a source base station to a target base station, the source base station determines a delay of a connection between the source base station and the target base station. The source base station computes an action time taking into account the determined delay, the action time specifying a time when the target base station is able to allocate resources to the mobile station for the handover.

摘要翻译： 为了执行移动站从源基站到目标基站的切换，源基站确定源基站与目标基站之间的连接的延迟。 源基站考虑所确定的延迟来计算动作时间，动作时间指定目标基站能够向移动台分配资源以进行切换的时间。

公开(公告)号：US07068623B1

公开(公告)日：2006-06-27

申请号：US09716136

申请日：2000-11-17

申请人： Peter A. Barany ,  Chandra S. Bontu ,  Shamim Akbar Rahman

发明人： Peter A. Barany ,  Chandra S. Bontu ,  Shamim Akbar Rahman

IPC分类号： H04Q7/28

CPC分类号： H04W72/1284 ,  H04W72/1247 ,  H04W72/1263 ,  H04W76/20 ,  H04W76/28

摘要： A mobile communications system includes a radio access network, such as an Enhanced General Packet Radio Service (EGPRS) network, in which mobile stations are able to enter into a discontinuous transmission (DTX) mode. During DTX mode of a first mobile station that is allocated a channel portion (e.g., a time slot of a frame), the radio access network is able to multiplex traffic from another mobile station onto the same channel portion. A mechanism is provided to enable the first mobile station to send a request for re-allocation of the channel portion. The request includes a Real-Time FastAssociated Control Channel (RTFACCH) resource request message (RTRRM). In response to the RTRRM, the radio access network sends an RTFACCH resource assignment message (RTUAM).

摘要翻译： 移动通信系统包括诸如增强型通用分组无线业务（EGPRS）网络的无线电接入网络，其中移动站能够进入不连续传输（DTX）模式。 在分配了信道部分（例如，帧的时隙）的第一移动台的DTX模式期间，无线电接入网络能够将来自另一移动站的业务复用到同一信道部分上。 提供了一种机制，以使得第一移动台能够发送对信道部分的重新分配的请求。 该请求包括实时快速关联控制信道（RTFACCH）资源请求消息（RTRRM）。 响应于RTRRM，无线接入网络发送RTFACCH资源分配消息（RTUAM）。