公开(公告)号：US08548387B2

公开(公告)日：2013-10-01

申请号：US11619168

申请日：2007-01-02

申请人： Durga P. Malladi

发明人： Durga P. Malladi

IPC分类号： H04B17/00

CPC分类号： H04B17/336

摘要： A method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication system. A first signal is received over a first channel and a second signal is received over a second channel, where the second signal is received at a higher signal power level than said first signal. A signal-to-noise ratio (SNR) of the second signal is measured, and the SNR of the first signal is determined based at least in part upon the measured SNR of the second signal.

摘要翻译： 一种用于在无线通信系统中提供上行链路信噪比（SNR）估计的方法和装置。 在第一信道上接收第一信号，并且在第二信道上接收第二信号，其中以比所述第一信号更高的信号功率电平接收第二信号。 测量第二信号的信噪比（SNR），并且至少部分地基于第二信号的测量SNR来确定第一信号的SNR。

公开(公告)号：US08014363B2

公开(公告)日：2011-09-06

申请号：US12024737

申请日：2008-02-01

申请人： Durga P. Malladi ,  Alkinoos Hector Vayanos

发明人： Durga P. Malladi ,  Alkinoos Hector Vayanos

IPC分类号： H04B7/00 ,  H04B7/216 ,  H04Q7/20

CPC分类号： H04W52/286 ,  H04L1/0003 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1845 ,  H04L1/24 ,  H04L5/1438

摘要： Techniques to mitigate the effects of link imbalance for the uplink between a terminal (or UE) and multiple base stations (or Node Bs). In one aspect, the serving base station (i.e., the one designated to transmit packet data to the terminal) monitors the uplink received SNR for each terminal designated to receive packet data transmission. The serving base station then determines, based on the uplink received SNR and an SNR threshold, whether or not link imbalance potentially exists for each such terminal. In another aspect, if it is determined that link imbalance potentially exists, then a 3-way handshake is performed to check the reliability of a feedback mechanism used for packet data transmission. Appropriate responsive actions may then be performed based on the result of the check.

摘要翻译： 减轻终端（或UE）与多个基站（或节点B）之间的上行链路不平衡的影响的技术。 在一个方面，服务基站（即，指定为向终端发送分组数据的服务基站）监视指定用于接收分组数据传输的每个终端的上行链路接收到的SNR。 服务基站然后基于上行链路接收的SNR和SNR阈值确定每个这样的终端是否可能存在链路不平衡。 在另一方面，如果确定可能存在链路不平衡，则执行三次握手以检查用于分组数据传输的反馈机制的可靠性。 然后可以基于检查的结果执行适当的响应动作。

公开(公告)号：US07929473B2

公开(公告)日：2011-04-19

申请号：US11861097

申请日：2007-09-25

申请人： Serge Willenegger ,  Alkinoos Hector Vayanos ,  Durga P. Malladi ,  Edward G. Tiedemann, Jr. ,  Francesco Grilli ,  Josef Blanz

发明人： Serge Willenegger ,  Alkinoos Hector Vayanos ,  Durga P. Malladi ,  Edward G. Tiedemann, Jr. ,  Francesco Grilli ,  Josef Blanz

IPC分类号： H04B7/00

CPC分类号： H04W16/14 ,  H04B7/022 ,  H04B2201/709709 ,  H04L1/0014 ,  H04L1/0067 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/1635 ,  H04W52/12 ,  H04W52/16 ,  H04W52/20 ,  H04W52/283 ,  H04W52/288 ,  H04W52/325 ,  H04W52/58 ,  H04W72/02

摘要： Method and apparatus for reducing interference in a wireless communication system when the source of interference is a deterministic component of the system. In one embodiment, the receiver weights the transmitters according to when the source of interference is transmitted. Further, the transmitter may employ power boosting to overcome the source of interference. In one embodiment, a W-CDMA system transmits a sync channel concurrently with physical channels, wherein the sync channel is not orthogonal to the physical channels. The receiver may cancel the sync channel when receiving control or data information. Similarly, the receiver may weight the transmissions from multiple transmitters.

摘要翻译： 当干扰源是系统的确定性组件时，用于减少无线通信系统中的干扰的方法和装置。 在一个实施例中，接收机根据何时发送干扰源对发射机进行加权。 此外，发射机可以采用功率提升来克服干扰源。 在一个实施例中，W-CDMA系统与物理信道同时发送同步信道，其中同步信道不与物理信道正交。 当接收到控制或数据信息时，接收机可以取消同步信道。 类似地，接收机可以对来自多个发射机的传输进行加权。

公开(公告)号：US07352722B2

公开(公告)日：2008-04-01

申请号：US10145430

申请日：2002-05-13

申请人： Durga P. Malladi ,  Alkinoos Hector Vayanos

发明人： Durga P. Malladi ,  Alkinoos Hector Vayanos

IPC分类号： H04B7/216 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/286 ,  H04L1/0003 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1845 ,  H04L1/24 ,  H04L5/1438

摘要： Techniques to mitigate the effects of link imbalance for the uplink between a terminal (or UE) and multiple base stations (or Node Bs). In one aspect, the serving base station (i.e., the one designated to transmit packet data to the terminal) monitors the uplink received SNR for each terminal designated to receive packet data transmission. The serving base station then determines, based on the uplink received SNR and an SNR threshold, whether or not link imbalance potentially exists for each such terminal. In another aspect, if it is determined that link imbalance potentially exists, then a 3-way handshake is performed to check the reliability of a feedback mechanism used for packet data transmission. Appropriate responsive actions may then be performed based on the result of the check.

摘要翻译： 减轻终端（或UE）与多个基站（或节点B）之间的上行链路不平衡的影响的技术。 在一个方面，服务基站（即，指定为向终端发送分组数据的服务基站）监视指定用于接收分组数据传输的每个终端的上行链路接收到的SNR。 服务基站然后基于上行链路接收的SNR和SNR阈值确定每个这样的终端是否可能存在链路不平衡。 在另一方面，如果确定可能存在链路不平衡，则执行3次握手以检查用于分组数据传输的反馈机制的可靠性。 然后可以基于检查的结果执行适当的响应动作。

公开(公告)号：US06831906B2

公开(公告)日：2004-12-14

申请号：US10032955

申请日：2001-10-26

申请人： Durga P. Malladi ,  Alkinoos Hector Vayanos

发明人： Durga P. Malladi ,  Alkinoos Hector Vayanos

IPC分类号： H04J300

CPC分类号： H04W52/322 ,  H04W52/16 ,  H04W52/54

摘要： A method and apparatus provides for efficient use of communication resources in a CDMA communication system (100) by selecting, at a time prior to a first time period (401), a first mobile station to receive transmission during the first time period (401) on a downlink shared channel, and selecting, at a time prior to the first time period (401), a second mobile station to receive transmission during a second time period (402) on the downlink shared channel. Transmission power level of a downlink shared control channel is determined for transmission to the second mobile station during an overlapping time period (403) with the first time period (401), and the transmission power level of the downlink shared channel for transmission during the first time period (401) is determined based on at least the determined transmission power level of the downlink shared control channel during the overlapping time period (403).

摘要翻译： 一种方法和装置通过在第一时间段（401）之前的第一时间段（401）选择第一移动站来接收在第一时间段（401）期间的传输，从而提供CDMA通信系统（100）中的通信资源的有效使用， 在下行链路共享信道上，并且在所述第一时间段（401）之前的时间选择第二移动站，以在所述下行链路共享信道上的第二时间段（402）期间接收传输。 在第一时间段（401）的重叠时间段（403）期间，下行链路共享控制信道的发送功率电平被确定为发送到第二移动台，以及用于在第一时间段（401）期间传输的下行链路共享信道的发送功率电平 至少在重叠时间段（403）期间，至少基于所确定的下行链路共享控制信道的发送功率电平来确定时间段（401）。

公开(公告)号：US08081598B2

公开(公告)日：2011-12-20

申请号：US10756957

申请日：2004-01-13

申请人： Durga P. Malladi ,  Tao Chen ,  Yongbin Wei

发明人： Durga P. Malladi ,  Tao Chen ,  Yongbin Wei

IPC分类号： H04W4/00 ,  H04L1/00 ,  H04L27/06

CPC分类号： H04L1/0039 ,  H04L1/201

摘要： Systems and methods for evaluating packets and frames in a wireless communication system having multiple reverse-link channels including a spontaneous, burst oriented transmission channel and its corresponding rate indicator channel. One embodiment comprises a base station monitoring the rate indicator channel, decoding the rate indicator channel using a maximum likelihood decoder and detecting the presence of a packet on the rate indicator channel by comparing a likelihood with a threshold, and analyzing the validity of a frame on the burst oriented channel based on the presence and content of packets received on the rate indicator channel.

摘要翻译： 在具有多个反向链路信道的无线通信系统中评估分组和帧的系统和方法，包括自发的突发定向传输信道及其对应的速率指示信道。 一个实施例包括监视速率指示符信道的基站，使用最大似然解码器解码速率指示符信道，并通过将似然率与阈值进行比较来检测速率指示符信道上的分组的存在，以及分析帧的有效性 基于在速率指示符信道上接收到的分组的存在和内容的突发定向信道。

公开(公告)号：US20110009066A1

公开(公告)日：2011-01-13

申请号：US12884183

申请日：2010-09-17

申请人： Durga P. Malladi

发明人： Durga P. Malladi

IPC分类号： H04B15/00

CPC分类号： H04B17/336

摘要： A method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication system. A first signal is received over a first channel and a second signal is received over a second channel, where the second signal is received at a higher signal power level than said first signal. A signal-to-noise ratio (SNR) of the second signal is measured, and the SNR of the first signal is determined based at least in part upon the measured SNR of the second signal.

摘要翻译： 一种用于在无线通信系统中提供上行链路信噪比（SNR）估计的方法和装置。 在第一信道上接收第一信号，并且在第二信道上接收第二信号，其中以比所述第一信号更高的信号功率电平接收第二信号。 测量第二信号的信噪比（SNR），并且至少部分地基于第二信号的测量SNR来确定第一信号的SNR。

公开(公告)号：US20100120433A1

公开(公告)日：2010-05-13

申请号：US12689967

申请日：2010-01-19

申请人： Francesco Grilli ,  Durga P. Malladi

发明人： Francesco Grilli ,  Durga P. Malladi

IPC分类号： H04W36/00

CPC分类号： H04L1/0061 ,  H04L1/0045 ,  H04L1/0065 ,  H04L2001/0093 ,  H04W4/06

摘要： An outer decoder and an inner decoder encode a block of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. Time re-alignment of two transmissions of the same content from two base stations can mitigate the problem of duplicated frames. The user of the subscriber station can experience seamless service without repetition of content, even when handing over to a new cell while receiving a buffer of broadcast content.

摘要翻译： 外部解码器和内部解码器对要发送的信息块进行编码，以通过增加冗余来改善保护。 冗余允许从小于完整编码的信息块解码信息。 来自两个基站的相同内容的两次传输的时间重新对准可以减轻重复帧的问题。 即使在接收到广播内容的缓冲器的同时移交给新的小区时，用户台的用户也可以体验无缝的服务而不重复内容。

公开(公告)号：US07675944B2

公开(公告)日：2010-03-09

申请号：US11386122

申请日：2006-03-20

申请人： Francesco Grilli ,  Durga P. Malladi

发明人： Francesco Grilli ,  Durga P. Malladi

IPC分类号： H04J3/06

CPC分类号： H04L1/0061 ,  H04L1/0045 ,  H04L1/0065 ,  H04L2001/0093 ,  H04W4/06

摘要： An outer decoder and an inner decoder encode a block of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. Time re-alignment of two transmissions of the same content from two base stations can mitigate the problem of duplicated frames. The user of the subscriber station can experience seamless service without repetition of content, even when handing over to a new cell while receiving a buffer of broadcast content.

摘要翻译： 外部解码器和内部解码器对要发送的信息块进行编码，以通过增加冗余来改善保护。 冗余允许从小于完整编码的信息块解码信息。 来自两个基站的相同内容的两次传输的时间重新对准可以减轻重复帧的问题。 即使在接收到广播内容的缓冲器的同时移交给新的小区时，用户台的用户也可以体验无缝的服务而不重复内容。

公开(公告)号：US07643452B2

公开(公告)日：2010-01-05

申请号：US11386897

申请日：2006-03-20

申请人： Francesco Grilli ,  Durga P. Malladi

发明人： Francesco Grilli ,  Durga P. Malladi

IPC分类号： H04W36/00

CPC分类号： H04W36/02 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0065 ,  H04L2001/0093 ,  H04W4/06

摘要： An outer decoder and an inner decoder encode a block of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. Time re-alignment of two transmissions of the same content from two base stations can mitigate the problem of clipped frames. The user of the subscriber station can experience seamless service without loss of content, even when handing over to a new cell while receiving a buffer of broadcast content.

摘要翻译： 外部解码器和内部解码器对要发送的信息块进行编码，以通过添加冗余来改进保护。 冗余允许从小于完整编码的信息块解码信息。 来自两个基站的相同内容的两次传输的时间重新对准可以减轻被剪辑的帧的问题。 即使在接收到广播内容的缓冲器的同时移交给新小区时，用户站的用户也可以体验无缝的服务而不丢失内容。