公开(公告)号：US20100041355A1

公开(公告)日：2010-02-18

申请号：US12606079

申请日：2009-10-26

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

IPC分类号： H04B1/04

CPC分类号： H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

摘要： Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

摘要翻译： 使用多个天线实现发射和/或接收分集。 在一些实施例中，无线终端内的单个发射机链随时间耦合到多个发射天线。 在任何给定时间，可控开关模块将单个发射机链耦合到多个发射天线中的一个。 随着时间的推移，开关模块将来自单个发射机链的输出信号耦合到不同的发射天线。 切换决定基于预定信息，停留信息和/或信道条件反馈信息。 在一些驻留和/或信道估计边界上执行切换。 在一些OFDM实施例中，多个发射机链中的每一个分别耦合到不同的发射天线。 要发送的信息被映射到多个音调。 为不同的发射链/天线组同时形成和发送不同的音调子集。 分配给每个天线的子集的音调的平衡作为预定信息，停留信息和/或信道条件反馈信息的函数而改变。

公开(公告)号：US20060092881A1

公开(公告)日：2006-05-04

申请号：US11302729

申请日：2005-12-14

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande

IPC分类号： H04Q7/00

CPC分类号： H04L5/023 ,  H04B1/7097 ,  H04B17/24 ,  H04B17/345 ,  H04B2201/70701 ,  H04B2201/70702

摘要： Methods and apparatus for collecting, measuring, reporting and/or using information which can be used for interference control purposes. Wireless terminals measure signals transmitted from one or more base stations, e.g., base station sector transmitters. The measured signals may be, e.g., beacon signals and/or pilot signals. From the measured signals, the wireless terminal generates one or more gain ratios which provide information about the relative gain of the communications channels from different base station sectors to the wireless terminal. This information represents interference information since it provides information about the signal interference that will be caused by transmissions from other base station sectors relative to transmissions made by the base station sector to which the wireless terminal is attached. Based on the signal energy measurements and relative gains generated from the energy measures, reports are generated in accordance with the invention and sent to one or more base stations.

公开(公告)号：US20060083161A1

公开(公告)日：2006-04-20

申请号：US11251069

申请日：2005-10-14

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande

IPC分类号： H04J11/00 ,  H04B7/00 ,  H04B7/216

CPC分类号： H04B1/7103 ,  H04B1/7097 ,  H04B7/022 ,  H04B17/24 ,  H04B17/318 ,  H04B17/345 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L5/023

摘要： Methods and apparatus for collecting, measuring, reporting and/or using information which can be used for interference control purposes. Wireless terminals measure signals transmitted from one or more base stations, e.g., base station sector transmitters. The measured signals may be, e.g., beacon signals and/or pilot signals. From the measured signals, the wireless terminal generates one or more gain ratios which provide information about the relative gain of the communications channels from different base station sectors to the wireless terminal. This information represents interference information since it provides information about the signal interference that will be caused by transmissions from other base station sectors relative to transmissions made by the base station sector to which the wireless terminal is attached. Based on the signal energy measurements and relative gains generated from the energy measures, reports are generated in accordance with the invention and sent to one or more base stations.

公开(公告)号：US07630339B2

公开(公告)日：2009-12-08

申请号：US10763944

申请日：2004-01-23

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

IPC分类号： H04Q7/00

CPC分类号： H04B7/0626

摘要： Methods and apparatus for providing channel diversity to wireless terminals (WTs) in a manner that reduces the latency between the time a WT encounters satisfactory channel conditions are described. A plurality of communications channels with different physical characteristics are maintained in a cell by a base station (BS). Each WT monitors multiple channels and maintains multiple channel estimates at the same time so that rapid switching between channels is possible. Channel quality information is conveyed from each WT to the BS. The WT or BS selects a channel based on the measured channel quality. By supporting multiple channels and by introducing periodic variations into the channels in various embodiments, the time before a WT encounters a channel with good or acceptable channel conditions is minimized even if the WT does not change location. Multiple antennas are used at the BS to support numerous channels simultaneously, e.g., by controlling antenna patterns.

摘要翻译： 描述了以降低WT遇到令人满意的信道条件的时间之间的等待时间的方式向无线终端（WT）提供信道分集的方法和装置。 具有不同物理特性的多个通信信道由基站（BS）保持在小区中。 每个WT监视多个信道并同时维持多个信道估计，使得信道之间的快速切换是可能的。 信道质量信息从每个WT传送到BS。 WT或BS基于测量的信道质量来选择信道。 通过支持多个信道并且在各种实施例中引入周期性变化到信道中，即使WT不改变位置，WT遇到具有良好或可接受的信道条件的信道之前的时间被最小化。 在BS处使用多个天线来同时支持多个信道，例如通过控制天线方向图。

公开(公告)号：US08582536B2

公开(公告)日：2013-11-12

申请号：US12630130

申请日：2009-12-03

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

IPC分类号： H04W4/00

CPC分类号： H04B7/0626

摘要： Methods and apparatus for providing channel diversity to wireless terminals (WTs) in a manner that reduces the latency between the time a WT encounters satisfactory channel conditions are described. A plurality of communications channels with different physical characteristics are maintained in a cell by a base station (BS). Each WT monitors multiple channels and maintains multiple channel estimates at the same time so that rapid switching between channels is possible. Channel quality information is conveyed from each WT to the BS. The WT or BS selects a channel based on the measured channel quality. By supporting multiple channels and by introducing periodic variations into the channels in various embodiments, the time before a WT encounters a channel with good or acceptable channel conditions is minimized even if the WT does not change location. Multiple antennas are used at the BS to support numerous channels simultaneously, e.g., by controlling antenna patterns.

公开(公告)号：US20050003768A1

公开(公告)日：2005-01-06

申请号：US10763944

申请日：2004-01-23

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

IPC分类号： H04W88/18 ,  H04B7/06 ,  H03C7/02

CPC分类号： H04B7/0626

摘要： Methods and apparatus for providing channel diversity to wireless terminals (WTs) in a manner that reduces the latency between the time a WT encounters satisfactory channel conditions are described. A plurality of communications channels with different physical characteristics are maintained in a cell by a base station (BS). Each WT monitors multiple channels and maintains multiple channel estimates at the same time so that rapid switching between channels is possible. Channel quality information is conveyed from each WT to the BS. The WT or BS selects a channel based on the measured channel quality. By supporting multiple channels and by introducing periodic variations into the channels in various embodiments, the time before a WT encounters a channel with good or acceptable channel conditions is minimized even if the WT does not change location. Multiple antennas are used at the BS to support numerous channels simultaneously, e.g., by controlling antenna patterns.

摘要翻译： 描述了以降低WT遇到令人满意的信道条件的时间之间的等待时间的方式向无线终端（WT）提供信道分集的方法和装置。 具有不同物理特性的多个通信信道由基站（BS）保持在小区中。 每个WT监视多个信道并同时维持多个信道估计，使得信道之间的快速切换是可能的。 信道质量信息从每个WT传送到BS。 WT或BS基于测量的信道质量来选择信道。 通过支持多个信道并且通过在各种实施例中引入周期性变化到信道中，即使WT不改变位置，WT遇到具有良好或可接受的信道条件的信道之前的时间被最小化。 在BS处使用多个天线来同时支持多个信道，例如通过控制天线方向图。

公开(公告)号：US20100144282A1

公开(公告)日：2010-06-10

申请号：US12630130

申请日：2009-12-03

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan

IPC分类号： H04B15/00 ,  H04B7/005

CPC分类号： H04B7/0626

摘要： Methods and apparatus for providing channel diversity to wireless terminals (WTs) in a manner that reduces the latency between the time a WT encounters satisfactory channel conditions are described. A plurality of communications channels with different physical characteristics are maintained in a cell by a base station (BS). Each WT monitors multiple channels and maintains multiple channel estimates at the same time so that rapid switching between channels is possible. Channel quality information is conveyed from each WT to the BS. The WT or BS selects a channel based on the measured channel quality. By supporting multiple channels and by introducing periodic variations into the channels in various embodiments, the time before a WT encounters a channel with good or acceptable channel conditions is minimized even if the WT does not change location. Multiple antennas are used at the BS to support numerous channels simultaneously, e.g., by controlling antenna patterns.

摘要翻译： 描述了以降低WT遇到令人满意的信道条件的时间之间的等待时间的方式向无线终端（WT）提供信道分集的方法和装置。 具有不同物理特性的多个通信信道由基站（BS）保持在小区中。 每个WT监视多个信道并同时维持多个信道估计，使得信道之间的快速切换是可能的。 信道质量信息从每个WT传送到BS。 WT或BS基于测量的信道质量来选择信道。 通过支持多个信道并且在各种实施例中引入周期性变化到信道中，即使WT不改变位置，WT遇到具有良好或可接受的信道条件的信道之前的时间被最小化。 在BS处使用多个天线来同时支持多个信道，例如通过控制天线方向图。

公开(公告)号：US08170572B2

公开(公告)日：2012-05-01

申请号：US11486547

申请日：2006-07-14

申请人： Vincent D. Park ,  M. Scott Corson ,  Murari Srinivasan ,  Arnab Das ,  Pablo Anigstein ,  Junyi Li ,  Alan William O'Neill ,  Vladimir Parizhisky ,  Sathyadev Venkata Uppala ,  Matthew Impett

发明人： Vincent D. Park ,  M. Scott Corson ,  Murari Srinivasan ,  Arnab Das ,  Pablo Anigstein ,  Junyi Li ,  Alan William O'Neill ,  Vladimir Parizhisky ,  Sathyadev Venkata Uppala ,  Matthew Impett

IPC分类号： H04W72/00 ,  H04J3/16

CPC分类号： H04L41/0816 ,  H04L41/0806 ,  H04L41/0893 ,  H04L41/5019 ,  H04L41/5022 ,  H04L41/509 ,  H04L41/5093 ,  H04L47/10 ,  H04L47/14 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/2483 ,  H04W28/14 ,  H04W28/18 ,  H04W72/12

摘要： An access node, e.g., base station, determines a configuration of an end node, e.g., wireless terminal, intended to support a specific traffic flow and sends a configuration command to the wireless terminal. A base station may determine one or more parameters associated with classification, queue management, scheduling, and/or automatic repeat request, and then send a configuration command to the wireless terminal instructing it to implement a configuration operation. In some embodiments, a wireless terminal sets the value of an internal parameter to a value directly provided by the base station in a configuration command. In some embodiments, a wireless terminal determines and sets the value of an internal parameter as a function of information included in the configuration command from the base station.

摘要翻译： 接入节点（例如，基站）确定旨在支持特定业务流的终端节点（例如，无线终端）的配置，并向无线终端发送配置命令。 基站可以确定与分类，队列管理，调度和/或自动重复请求相关联的一个或多个参数，然后向无线终端发送指令其实施配置操作的配置命令。 在一些实施例中，无线终端在配置命令中将内部参数的值设置为由基站直接提供的值。 在一些实施例中，无线终端根据来自基站的配置命令中包括的信息确定并设置内部参数的值。

公开(公告)号：US20070243879A1

公开(公告)日：2007-10-18

申请号：US11486547

申请日：2006-07-14

申请人： Vincent D. Park ,  M. Scott Corson ,  Murari Srinivasan ,  Arnab Das ,  Pablo Anigstein ,  Junyi Li ,  Alan William O'Neill ,  Vladimir Parizhisky ,  Sathyadev Venkata Uppala ,  Matthew Impett

发明人： Vincent D. Park ,  M. Scott Corson ,  Murari Srinivasan ,  Arnab Das ,  Pablo Anigstein ,  Junyi Li ,  Alan William O'Neill ,  Vladimir Parizhisky ,  Sathyadev Venkata Uppala ,  Matthew Impett

IPC分类号： H04Q7/20

CPC分类号： H04L41/0816 ,  H04L41/0806 ,  H04L41/0893 ,  H04L41/5019 ,  H04L41/5022 ,  H04L41/509 ,  H04L41/5093 ,  H04L47/10 ,  H04L47/14 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/2483 ,  H04W28/14 ,  H04W28/18 ,  H04W72/12

摘要： An access node, e.g., base station, determines a configuration of an end node, e.g., wireless terminal, intended to support a specific traffic flow and sends a configuration command to the wireless terminal. A base station may determine one or more parameters associated with classification, queue management, scheduling, and/or automatic repeat request, and then send a configuration command to the wireless terminal instructing it to implement a configuration operation. In some embodiments, a wireless terminal sets the value of an internal parameter to a value directly provided by the base station in a configuration command. In some embodiments, a wireless terminal determines and sets the value of an internal parameter as a function of information included in the configuration command from the base station.

摘要翻译： 接入节点（例如，基站）确定旨在支持特定业务流的终端节点（例如，无线终端）的配置，并向无线终端发送配置命令。 基站可以确定与分类，队列管理，调度和/或自动重复请求相关联的一个或多个参数，然后向无线终端发送指令其实施配置操作的配置命令。 在一些实施例中，无线终端在配置命令中将内部参数的值设置为由基站直接提供的值。 在一些实施例中，无线终端根据来自基站的配置命令中包括的信息确定并设置内部参数的值。

公开(公告)号：US09572179B2

公开(公告)日：2017-02-14

申请号：US11487054

申请日：2006-07-14

申请人： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Murari Srinivasan

发明人： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Murari Srinivasan

IPC分类号： H04B1/00 ,  H04W72/12 ,  H04B17/24 ,  H04W8/24 ,  H04W24/10

CPC分类号： H04W72/1284 ,  H04B17/24 ,  H04W8/24 ,  H04W24/10 ,  H04W72/1231

摘要： Methods and apparatus for communicating transmission backlog information are described. Reporting control factors are utilized to expand reporting possibilities for a fixed bit size request report. At least one report control factor is determined as a function of channel quality information, power information, device capability information, and/or quality of service information. A transmission backlog report value is interpreted as a function of a reporting control factor. A wide range of quantization schemes for reporting transmission backlog information are facilitated corresponding to a small bit size report. A communications device can adaptively select a quantization request level closely matched to its current needs such as to provide an accurate representation of its current traffic channel resource needs. A communications device may request a number of frames in a request report and the same report may be indirectly requesting a number of communications segments needed to clear its transmission backlog.

摘要翻译： 描述用于传送传输积压信息的方法和装置。 报告控制因素用于扩展固定位大小请求报告的报告可能性。 至少一个报告控制因子被确定为信道质量信息，功率信息，设备能力信息和/或服务质量信息的函数。 传输积压报告值被解释为报告控制因子的函数。 用于报告传输积压信息的宽范围的量化方案对应于小位尺寸报告是便利的。 通信设备可以自适应地选择与其当前需求紧密匹配的量化请求级别，以提供其当前业务信道资源需求的精确表示。 通信设备可以在请求报告中请求多个帧，并且相同的报告可以间接地请求清除其传输积压所需的多个通信段。