公开(公告)号：US08824307B2

公开(公告)日：2014-09-02

申请号：US13269721

申请日：2011-10-10

申请人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Pavan Kumar Vitthaladevuni

发明人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Pavan Kumar Vitthaladevuni

IPC分类号： H04W4/00 ,  H04W72/08 ,  H04W72/04

CPC分类号： H04W72/085 ,  H04W36/30 ,  H04W72/0413

摘要： A wireless communication system transmits in a High Speed Downlink Packet Access (HSDPA) by having a Radio Network Controller (RNC) assign portions of data to a first serving cell and a second serving cell for transmitting to a user equipment. The first serving cell transmits data on a first downlink carrier to the user equipment. The second serving cell, which is independent from the first serving cell, transmits data on a second downlink carrier to the user equipment. In an optional aspect, the RNC receives a measurement report from the user equipment on a first uplink carrier via at least one of the first serving cell and the second serving cell.

摘要翻译： 无线通信系统通过使无线网络控制器（RNC）将数据的部分分配给第一服务小区和第二服务小区来发送到高速下行链路分组接入（HSDPA），以发送给用户设备。 第一服务小区在第一下行链路载波上向用户设备发送数据。 独立于第一服务小区的第二服务小区在第二下行链路载波上向用户设备发送数据。 在可选方面，RNC经由第一服务小区和第二服务小区中的至少一个，在第一上行链路载波上从用户设备接收测量报告。

公开(公告)号：US08611311B2

公开(公告)日：2013-12-17

申请号：US11173504

申请日：2005-06-30

申请人： Alessandro Vanelli Coralli ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Roberto Padovani ,  Brian K Butler ,  Jeffrey A Levin ,  Thomas B Wilborn ,  Paul E Bender

发明人： Alessandro Vanelli Coralli ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Roberto Padovani ,  Brian K Butler ,  Jeffrey A Levin ,  Thomas B Wilborn ,  Paul E Bender

IPC分类号： H03D1/04

CPC分类号： H04B1/7107 ,  H04B2201/70701

摘要： Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

摘要翻译： 用于估计和消除无线（例如，CDMA）通信系统中的导频干扰的方法和系统。 在一种方法中，最初处理包括多个信号实例（每个包括导频）的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计，对解扩数据进行信道化以提供导频符号，对导频符号进行滤波以估计信号实例的信道响应，并将估计信道 响应与扩展序列。 由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰，其从数据样本中减去以提供导频取消的数据采样。 然后处理这些样本以便为接收信号中的至少一个（期望的）信号实例中的每一个导出解调数据。

公开(公告)号：US08565153B2

公开(公告)日：2013-10-22

申请号：US12782492

申请日：2010-05-18

申请人： Danlu Zhang ,  Jilei Hou ,  Bibhu Prasad Mohanty

发明人： Danlu Zhang ,  Jilei Hou ,  Bibhu Prasad Mohanty

IPC分类号： H04W4/00

CPC分类号： H04W72/048 ,  H04W76/10 ,  H04W76/20 ,  H04W88/06 ,  H04W88/10

摘要： A communication device configured for dynamic switching between Multiple-Input and Multiple-Output (MIMO) and Dual-Cell High Speed Downlink Packet Access (DC HSDPA) is disclosed. The communication device includes a processor and instructions stored in memory. The communication device begins a connection setup for one or more wireless communication devices, obtains MIMO and DC HSDPA capabilities for the one or more wireless communication devices and optimizes the coexistence of MIMO and DC HSDPA.

摘要翻译： 公开了一种配置用于多输入多输出（MIMO）和双小区高速下行链路分组接入（DC HSDPA）之间的动态切换的通信设备。 通信设备包括处理器和存储在存储器中的指令。 通信设备开始一个或多个无线通信设备的连接建立，为一个或多个无线通信设备获得MIMO和DC HSDPA能力，并优化MIMO与DC HSDPA的共存。

公开(公告)号：US08559351B2

公开(公告)日：2013-10-15

申请号：US12508026

申请日：2009-07-23

申请人： Jilei Hou ,  Juan Montojo ,  Ravi Palanki

发明人： Jilei Hou ,  Juan Montojo ,  Ravi Palanki

IPC分类号： H04H20/71 ,  H04W4/00 ,  H04J3/26 ,  H04W72/00 ,  H04W84/04

CPC分类号： H04B7/024 ,  H04L5/0035 ,  H04L5/0048 ,  H04W72/005 ,  H04W84/04

摘要： Aspects describe utilizing a dedicated reference signal for supporting Network MIMO, distributed MIMO, Coordinated MultiPoint, and the like. A data modulation symbol is transmitting in the same direction as a pilot modulation symbol is transmitted. Two or more wireless devices can coordinate communications such that transmission of the same pilot modulation symbol and the same data modulation symbol are transmitted to a device in different directions, each direction associated with a wireless device and intended for a particular mobile device. Cluster-specific scrambling and/or user-group specific scrambling can be employed and a scrambling code can be communicated prior to transmission of the pilot modulation symbols and data modulation symbols.

摘要翻译： 方面描述了利用专用参考信号来支持网络MIMO，分布式MIMO，协调多点等。 数据调制符号在与发送导频调制符号相同的方向上进行发送。 两个或更多个无线设备可以协调通信，使得相同的导频调制符号和相同的数据调制符号的传输被发送到与无线设备相关联且针对特定移动设备的每个方向在不同方向上的设备。 可以采用簇特定的加扰和/或用户组特定的加扰，并且可以在传送导频调制符号和数据调制符号之前传送扰码。

公开(公告)号：US20130064181A1

公开(公告)日：2013-03-14

申请号：US13344222

申请日：2012-01-05

申请人： Yibo Jiang ,  Sharad Deepak Sambhwani ,  Jilei Hou

发明人： Yibo Jiang ,  Sharad Deepak Sambhwani ,  Jilei Hou

IPC分类号： H04W4/00

CPC分类号： H04B7/0658 ,  H04B7/0413 ,  H04B7/0617

摘要： Apparatus and methods for communicating in a wireless network include receiving a weight vector in a slot for providing closed loop transmit diversity to signals in a next slot, holding the weight vector over a plurality of slots following a transmission burst, and applying the weight vector to signals in at least one slot of a subsequent transmission burst in discontinuous transmit. Additional apparatus and methods for communicating in a wireless network include determining a weight vector based on signals received from a device to provide closed loop transmit diversity feedback to the device, holding the weight vector over a plurality of slots following receiving a transmission burst, and applying the weight vector for signals received in at least one slot of a subsequent transmission burst from the device.

摘要翻译： 用于在无线网络中进行通信的设备和方法包括：在时隙中接收权重向量，以向下一个时隙中的信号提供闭环发射分集，将传播突发之后的多个时隙保持权重向量，并将该权重向量 在不连续发送中的后续传输突发的至少一个时隙中的信号。 用于在无线网络中进行通信的附加装置和方法包括基于从设备接收的信号来确定权重向量，以向接收到传输突发的数据提供闭环发射分集反馈给该设备，保持加权矢量在多个时隙上，以及应用 在来自设备的后续传输突发的至少一个时隙中接收的信号的权重向量。

公开(公告)号：US08259599B2

公开(公告)日：2012-09-04

申请号：US12030818

申请日：2008-02-13

申请人： Navid Hassanpour Ghady ,  Joseph B. Soriaga ,  John Edward Smee ,  Jilei Hou

发明人： Navid Hassanpour Ghady ,  Joseph B. Soriaga ,  John Edward Smee ,  Jilei Hou

IPC分类号： H04B7/02 ,  H04B7/216 ,  H04B1/38 ,  H04B15/00 ,  H04M1/00

CPC分类号： H04B7/0639 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632

摘要： In accordance with a method for distributed beamforming based on carrier to caused interference, a base station may receive channel state information from users. The base station may select a codeword from a codebook. The codeword may be selected so as to maximize a utility function that is based on a signal-to-caused-interference-plus-noise ratio. The base station may use the codeword for beamforming.

摘要翻译： 根据基于载波的分布式波束形成方法引起干扰，基站可以从用户接收信道状态信息。 基站可以从码本中选择码字。 可以选择码字以便最大化基于信号到引起的干扰加噪声比的效用函数。 基站可以使用码字进行波束成形。

公开(公告)号：US20120163205A1

公开(公告)日：2012-06-28

申请号：US13170064

申请日：2011-06-27

申请人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Weiyan Ge

发明人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Weiyan Ge

IPC分类号： H04W28/02 ,  H04W72/10 ,  H04W72/04

CPC分类号： H04W72/1247 ,  H04L47/14 ,  H04L47/283 ,  H04W28/14 ,  H04W72/1252 ,  H04W72/1278 ,  H04W76/15 ,  H04W92/12

摘要： A base station (e.g., a Node B in a Multi-Point HSDPA network) calculates an amount of data to request from a network node (e.g., a radio network controller or RNC). As a part of the algorithm utilized, a length of a queue at the Node B for buffering the flow may be dynamically adjusted in an effort to optimize the trade-off between buffer underrun and skew. Further, a network node (e.g., the RNC) responds to Node B flow control requests. Here, the RNC may determine the amount of data to send to the Node B in response to the flow control message from the Node B, and may send the data to the Node B. In various aspects of the present disclosure involving a Multi-Point HSDPA system, the flow control algorithm at the RNC coordinates packet flow to the primary serving cell and the secondary serving cell for the UE.

摘要翻译： 基站（例如，多点HSDPA网络中的节点B）计算从网络节点（例如，无线电网络控制器或RNC）请求的数据量。 作为所使用的算法的一部分，可以动态地调整用于缓冲流的节点B处的队列的长度，以努力优化缓冲器欠载和偏移之间的权衡。 此外，网络节点（例如，RNC）响应于节点B流控制请求。 这里，RNC可以响应于来自节点B的流控制消息来确定发送给节点B的数据量，并且可以将数据发送到节点B.在涉及多点的本公开的各个方面 HSDPA系统中，RNC处的流控制算法协调到主服务小区和UE的辅助服务小区的分组流。

公开(公告)号：US20120140695A1

公开(公告)日：2012-06-07

申请号：US12961368

申请日：2010-12-06

申请人： Jason Frank Hunzinger ,  Jilei Hou

发明人： Jason Frank Hunzinger ,  Jilei Hou

IPC分类号： H04W40/00

CPC分类号： H04L1/1812 ,  H04L2001/0097 ,  H04W72/1231 ,  H04W84/047

摘要： A wireless communication system transmits a data packet from a cell to a terminal and to a diversity relay. The diversity relay stores the data packet and, based on a state of an acknowledgement signal from the terminal indicating a failure of the terminal to receive and decode the data packet, determines that a subsequent data packet will be a retransmission and, in response, retrieves and transmits the stored data packet to the terminal, cooperative with the retransmission from the data packet from the cell to the terminal. Optionally, the diversity relay transmits pilot signals to the terminal and, optionally, modifies channel quality reports sent from the terminal to the cell.

摘要翻译： 无线通信系统从小区向终端和分集中继发送数据分组。 分集中继器存储数据分组，并且基于来自终端的指示终端的故障以接收和解码数据分组的确认信号的状态，确定后续数据分组将是重传，并且作为响应，检索 并将存储的数据分组发送到终端，与从小区到终端的数据分组进行重传合作。 可选地，分集中继器向终端发送导频信号，并且可选地修改从终端发送到小区的信道质量报告。

公开(公告)号：US20110222455A1

公开(公告)日：2011-09-15

申请号：US13046220

申请日：2011-03-11

申请人： Jilei Hou ,  Shengshan Cui ,  Danlu Zhang ,  Bibhu Prasad Mohanty

发明人： Jilei Hou ,  Shengshan Cui ,  Danlu Zhang ,  Bibhu Prasad Mohanty

IPC分类号： G08C17/00 ,  H04B7/26 ,  H04L27/01

CPC分类号： H04W52/267 ,  H04W52/08 ,  H04W52/146 ,  H04W52/24 ,  H04W52/325

摘要： A method and apparatus for enhancing uplink operations in a CDMA system is provided. The method may include receiving a rate control value and a transmit power value from a node B, wherein the rate control value is determined through uplink scheduling by the node B, and wherein the transmit power value is selected by the node B to maintain a signal to interference plus noise (SINR) metric within a threshold for a pilot channel, transmitting control channel information at a first power level determined from the transmit power value, and using a first average power tracking unit to generate the first selected transmit power and transmitting data channel information at a second power level determined from both the rate control value and the transmit power value.

摘要翻译： 提供了一种用于增强CDMA系统中的上行链路操作的方法和装置。 该方法可以包括从节点B接收速率控制值和发射功率值，其中通过节点B的上行链路调度来确定速率控制值，并且其中发送功率值由节点B选择以维持信号 在导频信道的阈值内的干扰加噪声（SINR）度量，以从发送功率值确定的第一功率电平发送控制信道信息，并且使用第一平均功率跟踪单元生成第一选择的发送功率并发送数据 信道信息以从速率控制值和发射功率值两者确定的第二功率电平。

公开(公告)号：US20110176519A1

公开(公告)日：2011-07-21

申请号：US12946705

申请日：2010-11-15

申请人： Pavan Kumar Vitthaladevuni ,  Daniu Zhang ,  Rohit Kapoor ,  Jilei Hou ,  Stefan Brueck ,  Josef J. Blanz

发明人： Pavan Kumar Vitthaladevuni ,  Daniu Zhang ,  Rohit Kapoor ,  Jilei Hou ,  Stefan Brueck ,  Josef J. Blanz

IPC分类号： H04W72/04 ,  H04W4/00

CPC分类号： H04B7/0452 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/1607 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04W28/18 ,  H04W48/08

摘要： A method for signaling multiple-user multiple-input and multiple-output in a high speed packet access system is described. A multiple-user multiple-input and multiple-output parameter is determined. A message that includes the multiple-user multiple-input and multiple-output parameter is determined. The message is sent to a wireless device. The method may be performed by a user equipment, a Node B or a radio network controller.

摘要翻译： 描述了一种用于在高速分组接入系统中信令多用户多输入和多输出的方法。 确定多用户多输入和多输出参数。 确定包含多用户多输入和多输出参数的消息。 该消息被发送到无线设备。 该方法可以由用户设备，节点B或无线电网络控制器执行。