公开(公告)号：US20100238825A1

公开(公告)日：2010-09-23

申请号：US12724963

申请日：2010-03-16

申请人： Danlu Zhang ,  Pavan Kumar Vitthaladevuni ,  Ravi Agarwal ,  Jilei Hou ,  Ozcan Ozturk ,  Arjun Bharadwaj ,  Sharad Deepak Sambhwani

发明人： Danlu Zhang ,  Pavan Kumar Vitthaladevuni ,  Ravi Agarwal ,  Jilei Hou ,  Ozcan Ozturk ,  Arjun Bharadwaj ,  Sharad Deepak Sambhwani

IPC分类号： H04W24/00

CPC分类号： H04W52/286 ,  H04W52/06 ,  H04W52/12 ,  H04W52/346 ,  H04W52/42

摘要： A method for wireless communications is provided. The method includes applying independent power controls to two or more carriers from a set of high speed packet access signals. The method includes monitoring power across the two or more carriers to determine power levels for the set of high speed packet access signals. The method also includes adjusting at least one of an open loop control, an inner loop control, or an outer loop control in view of the power levels for the set of packet access signals.

摘要翻译： 提供了一种用于无线通信的方法。 该方法包括从一组高速分组接入信号向两个或多个载波应用独立的功率控制。 该方法包括监视两个或多个载波上的功率，以确定该组高速分组接入信号的功率电平。 鉴于该组分组接入信号的功率电平，该方法还包括调整开环控制，内环控制或外环控制中的至少一个。

公开(公告)号：US20100107028A1

公开(公告)日：2010-04-29

申请号：US12580128

申请日：2009-10-15

申请人： Alexei Y. Gorokhov ,  Jilei Hou

发明人： Alexei Y. Gorokhov ,  Jilei Hou

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1812 ,  H04L5/0035

摘要： Systems and methodologies are described herein that facilitate Hybrid Automatic Repeat Request (H-ARQ) scheduling and coordination in a wireless communication system. As described herein, a network node capable of cooperation with other nodes for communication to respective users can coordinate a cooperation strategy across nodes based on a H-ARQ protocol to be utilized for a given user. In the case of a synchronous H-ARQ protocol, communication can be scheduled as described herein such that initial transmissions to a user are conducted cooperatively and re-transmissions are conducted without inter-node cooperation. In the case of a H-ARQ protocol utilizing persistent assignments, transmission intervals can be calculated and utilized based on application latency requirements, backhaul link latency, or other factors. In the case of an asynchronous H-ARQ protocol, repeat transmissions can be coordinated in a similar manner to initial transmissions or conducted without inter-node cooperation based on latency sensitivity of an associated application.

摘要翻译： 本文描述了促进无线通信系统中的混合自动重传请求（H-ARQ）调度和协调的系统和方法。 如本文所述，能够与其他节点协作以便与相应用户进行通信的网络节点可以基于要给定用户使用的H-ARQ协议来协调跨节点的协作策略。 在同步H-ARQ协议的情况下，可以如本文所述来调度通信，使得对用户的初始传输进行协作地进行，并且在不进行节点间协作的情况下进行重传。 在使用持久分配的H-ARQ协议的情况下，可以基于应用等待时间要求，回程链路延迟等因素来计算和利用传输间隔。 在异步H-ARQ协议的情况下，可以以与初始传输相似的方式来协调重复传输，或者基于相关联的应用的延迟敏感度进行节点间协作。

公开(公告)号：US20090252201A1

公开(公告)日：2009-10-08

申请号：US12484572

申请日：2009-06-15

申请人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

发明人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

IPC分类号： H04B1/707 ,  H04B1/10

CPC分类号： H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701 ,  H04L25/0224 ,  H04W52/12

摘要： Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.

摘要翻译： 通信接收机中广义导频干扰消除技术。 在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。 剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。 在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。

公开(公告)号：US20070147329A1

公开(公告)日：2007-06-28

申请号：US11501972

申请日：2006-08-09

申请人： Joseph B. Soriaga ,  Naga Bhushan ,  Jilei Hou ,  Jinghu Chen ,  John Edward Smee

发明人： Joseph B. Soriaga ,  Naga Bhushan ,  Jilei Hou ,  Jinghu Chen ,  John Edward Smee

IPC分类号： H04B7/216 ,  H04B3/20

CPC分类号： H04L1/1607 ,  H04B1/71072 ,  H04L1/0025 ,  H04L1/0045 ,  H04L1/1812 ,  H04L1/1858 ,  H04L1/20 ,  H04L1/208 ,  H04L25/0204 ,  H04L25/03254

摘要： A method and system for reconstructing a user's received signal based on knowledge of the user's transmitted signal to yield efficient interference cancellation when there is spatial and/or temporal correlation in the received signal. The invention may be applied to the cancellation of pilot, decoded data and overhead signals. The method may involve a linear combination of the received samples across time, e.g., at a per-chip or sub-chip resolution, and across antennas, and build upon previous work in that the tap weights need not be the sole functions of the de-spreader outputs in the RAKE receiver.

摘要翻译： 一种用于基于用户发送信号的知识重建用户接收信号的方法和系统，以便在接收信号中存在空间和/或时间相关性时产生有效的干扰消除。 本发明可以应用于导频，解码数据和开销信号的消除。 该方法可以涉及所接收的样本在时间上的线性组合，例如以每芯片或子芯片分辨率和跨天线的线性组合，并且基于先前的工作，因为抽头权重不必是de - RAKE接收机中的扩展器输出。

公开(公告)号：US09554338B2

公开(公告)日：2017-01-24

申请号：US13398249

申请日：2012-02-16

申请人： Haitong Sun ,  Pavan Kumar Vitthaladevuni ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Bibhu Prasad Mohanty

发明人： Haitong Sun ,  Pavan Kumar Vitthaladevuni ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Bibhu Prasad Mohanty

IPC分类号： H04W52/24 ,  H04W52/40 ,  H04W52/28 ,  H04W52/14 ,  H04W52/20 ,  H04W52/36 ,  H04W52/48

CPC分类号： H04W52/244 ,  H04W52/146 ,  H04W52/20 ,  H04W52/242 ,  H04W52/286 ,  H04W52/362 ,  H04W52/367 ,  H04W52/40 ,  H04W52/48

摘要： A method and system for improving the reception of uplink transmissions in a heterogeneous wireless communication system includes a high-power node such as a macro-cell and a low-power node such as a femto-cell or pico-cell. To address an uplink imbalance where a nearby low-power node power controls a UE such that uplink transmissions of an HSDPA control channel are poorly received at the serving cell, an RNC can instruct the UE to boost its uplink transmit power, remove the UE from soft handover, or disable power control of the UE by the low-power node. To address inter-cell interference, the RNC can limit the UE transmit power and/or enable the victim cell to suppress the interference. Further, a common control channel can be used to power control UEs outside of the convention set of UEs available for power control.

摘要翻译： 用于改善异构无线通信系统中的上行链路传输的接收的方法和系统包括大功率节点，例如宏小区和诸如毫微微小区或微微小区的低功率节点。 为了解决上行链路不平衡，其中附近的低功率节点功率控制UE，使得服务小区处的HSDPA控制信道的上行链路传输不良，RNC可以指示UE提升其上行链路发射功率，将UE从 软切换，或者由低功率节点禁用UE的功率控制。 为了解决小区间干扰，RNC可以限制UE的发射功率和/或使受害小区能够抑制干扰。 此外，可以使用公共控制信道来为可用于功率控制的UE的规定集合外的UE供电。

公开(公告)号：US09294160B2

公开(公告)日：2016-03-22

申请号：US12535972

申请日：2009-08-05

申请人： Jilei Hou ,  Juan Montojo

发明人： Jilei Hou ,  Juan Montojo

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B7/02 ,  H04B7/04 ,  H04W72/00 ,  H04B7/06

CPC分类号： H04B7/024 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0632

摘要： Techniques for supporting distributed MIMO are described. For multi-user distributed MIMO, a cell directs its transmit power toward a UE while reducing interference to UE(s) in neighbor cell(s). For single-user distributed MIMO, multiple cells concurrently send transmissions to a UE. In an aspect, a UE sends channel estimates for serving and non-serving cells to support multi-user distributed MIMO. Each cell may use the channel estimates to select UEs for data transmission and determine precoding vectors to use for data transmission to the selected UEs. In another aspect, a UE sends CQI information for serving and non-serving cells to support single-user distributed MIMO. Each cell may use the CQI information to select UEs for data transmission and determine modulation and coding schemes to use for the selected UEs. In yet another aspect, a UE determines CQI information for a serving cell by taking into account interference nulling by non-serving cells.

摘要翻译： 描述了支持分布式MIMO的技术。 对于多用户分布式MIMO，小区将其发射功率定向到UE，同时减少对相邻小区中的UE的干扰。 对于单用户分布式MIMO，多个小区同时向UE发送传输。 在一方面，UE为服务小区和非服务小区发送信道估计以支持多用户分布式MIMO。 每个小区可以使用信道估计来选择用于数据传输的UE，并且确定用于向选择的UE进行数据传输的预编码向量。 另一方面，UE发送用于服务小区和非服务小区的CQI信息，以支持单用户分布式MIMO。 每个小区可以使用CQI信息来选择用于数据传输的UE，并确定用于所选择的UE的调制和编码方案。 在另一方面，UE通过考虑非服务小区的干扰归零来确定服务小区的CQI信息。

公开(公告)号：US09215648B2

公开(公告)日：2015-12-15

申请号：US13511998

申请日：2011-06-17

申请人： Aamod Dinkar Khandekar ,  Jilei Hou ,  Qingxin Chen ,  Xipeng Zhu ,  Jianqiang Zhang

发明人： Aamod Dinkar Khandekar ,  Jilei Hou ,  Qingxin Chen ,  Xipeng Zhu ,  Jianqiang Zhang

IPC分类号： H04W48/16 ,  H04W56/00 ,  H04W36/00 ,  H04B1/7073 ,  H04J11/00 ,  H04W88/06 ,  H04B1/707

CPC分类号： H04W48/16 ,  H04B1/7073 ,  H04B2001/70724 ,  H04J11/0083 ,  H04W36/0011 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0083 ,  H04W56/001 ,  H04W88/06

摘要： Aspects of radio access technology searching include apparatus and methods for obtaining relative synchronization information between a first radio access technology and a second radio access technology, and determining a time location of a pilot signal of the second radio access technology based on the relative synchronization information. Further aspects include searching for the pilot signal of the second radio access technology using the determined time location. Other aspects further include determining a measurement gap duration and measurement gap location based on the relative synchronization information so as to encompass a pilot of the second radio access technology.

摘要翻译： 无线电接入技术搜索的方面包括用于获得第一无线电接入技术和第二无线接入技术之间的相对同步信息的装置和方法，以及基于相对同步信息确定第二无线接入技术的导频信号的时间位置。 另外的方面包括使用确定的时间位置来搜索第二无线电接入技术的导频信号。 其他方面还包括基于相对同步信息来确定测量间隙持续时间和测量间隙位置，以便包含第二无线电接入技术的导频。

公开(公告)号：US08891387B2

公开(公告)日：2014-11-18

申请号：US13098231

申请日：2011-04-29

申请人： Bibhu Prasad Mohanty ,  Sharad Deepak Sambhwani ,  Chengjin Zhang ,  Daniel F. Filipovic ,  Ravi Agarwal ,  Jilei Hou ,  Rohit Kapoor

发明人： Bibhu Prasad Mohanty ,  Sharad Deepak Sambhwani ,  Chengjin Zhang ,  Daniel F. Filipovic ,  Ravi Agarwal ,  Jilei Hou ,  Rohit Kapoor

IPC分类号： H04W4/00 ,  H04W24/00 ,  H04B7/06

CPC分类号： H04B7/0689 ,  H04B7/0602 ,  H04B7/0617

摘要： In a communication system, user equipment (UE) conditionally performs uplink transmit diversity (ULTD) either by Switched Antenna Transmit Diversity (SATD) or Beamforming Transmit Diversity (BFTD) using a first antenna and a second antenna. Either a serving node or the UE determines that uplink transmit diversity is conditionally authorized. Either a serving node or the UE measures a value. The UE transmits using ULTD in response to determining that an enabling condition based on the value is satisfied. The UE can also disable uplink transmit diversity in response to determining that a disabling condition based on the value is satisfied. The disabling condition comprises a disabling threshold that equals the enabling condition comprising an enabling threshold with a threshold adjustment for hysteresis.

摘要翻译： 在通信系统中，用户设备（UE）通过使用第一天线和第二天线的交换天线发射分集（SATD）或波束形成发射分集（BFTD）有条件地执行上行链路发射分集（ULTD）。 服务节点或UE确定上行链路传输分集有条件地被授权。 服务节点或UE测量值。 响应于确定基于该值的使能条件得以满足，UE使用ULTD进行发送。 响应于确定基于该值的禁用条件被满足，UE还可以禁用上行链路发射分集。 禁用条件包括等于启用条件的禁用阈值，该允许条件包括具有用于滞后的阈值调整的启用阈值。

公开(公告)号：US08867420B2

公开(公告)日：2014-10-21

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 ,  H04W52/26 ,  H04W52/32 ,  H04W52/24 ,  H04W52/08 ,  H04W52/14

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：US08681809B2

公开(公告)日：2014-03-25

申请号：US13285185

申请日：2011-10-31

申请人： Sharad Deepak Sambhwani ,  Jilei Hou

发明人： Sharad Deepak Sambhwani ,  Jilei Hou

IPC分类号： H04L12/28

CPC分类号： H04B7/0634 ,  H04B7/0404 ,  H04B7/063 ,  H04B7/0693

摘要： Apparatus and methods of wireless communication include configuring a closed loop transmit diversity (CLTD) operation between a User Equipment (UE) and an access node, detecting a condition of an uplink from the UE to the access node, and disabling CLTD operation by the UE based upon the condition. Optionally, the apparatus and methods may further include detecting that the condition of the uplink has ended, and in response enabling the CLTD operation.

摘要翻译： 无线通信的装置和方法包括在用户设备（UE）和接入节点之间配置闭环发射分集（CLTD）操作，检测从UE到接入节点的上行链路的状态，以及禁用UE的CLTD操作 基于条件。 可选地，所述装置和方法还可以包括检测上行链路的状态已经结束，并且响应于启用CLTD操作。