公开(公告)号：US20200100214A1

公开(公告)日：2020-03-26

申请号：US16467454

申请日：2018-01-24

申请人： Chao WEI ,  Jilei HOU ,  Changlong XU ,  Jian LI ,  Qualcomm Incorporated

发明人： Chao Wei ,  Changlong Xu ,  Jilei Hou ,  Jian Li

IPC分类号： H04W72/00 ,  H04W56/00 ,  H04L1/00 ,  H04L1/18

摘要： Methods, systems, and devices for wireless communication are described. In order to exchange data over a given wireless communication network, a wireless device may first perform a cell acquisition procedure (e.g., to determine cell-specific information such as timing and frequency offsets, bandwidth, control channel formatting, etc.). In some systems, aspects of the timing information may be conveyed with scrambling codes applied to a master information block (MIB). Physical broadcast channel (PBCH) payloads, including MIB transmissions, may be jointly encoded with synchronization signal indices. Bursts of MIB transmissions may thus be decoded without blind decoding while maintaining error protection and low latency that may be necessary to obtain critical system information within the MIB.

公开(公告)号：US09986501B2

公开(公告)日：2018-05-29

申请号：US14782300

申请日：2013-04-09

申请人： QUALCOMM INCORPORATED ,  Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

发明人： Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

IPC分类号： H04W48/20 ,  H04W72/12 ,  H04B7/024 ,  H04B7/06 ,  H04W16/10 ,  H04W74/00 ,  H04J11/00 ,  H04W84/04 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08

CPC分类号： H04W48/20 ,  H04B7/024 ,  H04B7/06 ,  H04B7/0608 ,  H04J11/005 ,  H04W16/10 ,  H04W72/1226 ,  H04W74/002 ,  H04W84/02 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

摘要： Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference.

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：US20150326382A1

公开(公告)日：2015-11-12

申请号：US14763798

申请日：2013-01-28

申请人： Jian LI ,  Yisheng XUE ,  Michael M. FAN ,  Jilei HOU ,  Yin Huang ,  Fuyun Ling ,  QUALCOMM INCORPORATED

发明人： Jian Li ,  Yin Huang ,  Yisheng Xue ,  Michael M. Fan ,  Fuyun Ling ,  Jilei Hou

IPC分类号： H04L7/00 ,  H04L25/03

CPC分类号： H04L7/0004 ,  H04L25/03 ,  H04L25/0305 ,  H04L25/0307 ,  H04L2025/03656

摘要： A method of initializing a receiver is performed during an initialization mode. Timing offset values for a timing recovery circuit are repeatedly selected. For each selected timing offset value, timing recovery is performed using the timing offset value and groups of weights for a decision feedback equalizer are repeatedly selected. Each selected group of weights is used to perform blind decision feedback equalization. For each selected group of weights, a metric indicating data reception quality is computed. A timing offset value and a group of weights are chosen based on the computed metrics.

摘要翻译： 在初始化模式期间执行初始化接收机的方法。 定时恢复电路的定时偏移值被重复选择。 对于每个选择的定时偏移值，使用定时偏移值执行定时恢复，并且重复地选择用于判决反馈均衡器的权重组。 每个选择的权重组用于执行盲判决反馈均衡。 对于每个选择的权重组，计算指示数据接收质量的度量。 基于所计算的度量来选择定时偏移值和权重组。

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。

公开(公告)号：US08599771B2

公开(公告)日：2013-12-03

申请号：US12759369

申请日：2010-04-13

申请人： Aziz Gholmieh ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Bibhu Prasad Mohanty ,  Ozcan Ozturk ,  Arjun Bharadwaj ,  Heechoon Lee

发明人： Aziz Gholmieh ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Bibhu Prasad Mohanty ,  Ozcan Ozturk ,  Arjun Bharadwaj ,  Heechoon Lee

IPC分类号： H04W4/00

CPC分类号： H04W72/0406 ,  H04L5/001 ,  H04L5/0096

摘要： Methods, systems and apparatuses for controlling radio links in a multiple carrier wireless communication system are disclosed. A method can include aggregating control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers; establishing communication links for the anchor carrier and each secondary carrier; and controlling communication based on the anchor carrier.

摘要翻译： 公开了一种用于控制多载波无线通信系统中的无线电链路的方法，系统和装置。 方法可以包括将来自至少两个载波的控制功能聚合到一个载波上以形成锚定载波和一个或多个相关联的辅载波; 建立锚定载体和每个辅助载体的通信链路; 并基于锚载波控制通信。