公开(公告)号：US08571493B2

公开(公告)日：2013-10-29

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： H04B7/06

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.

公开(公告)号：US08503938B2

公开(公告)日：2013-08-06

申请号：US11487017

申请日：2006-07-14

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

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

IPC分类号： H04B15/00

CPC分类号： H04W24/08 ,  H04B17/345 ,  H04B17/382 ,  H04W72/08

摘要： A wireless terminal receives and measures broadcast reference signals, e.g., beacon and/or pilot signals, transmitted from a plurality of base station attachment points. The wireless terminal monitors for and attempts to recover broadcast loading factor information corresponding to attachment points. The wireless terminal generates and transmits an interference report to a current attachment point, the report based on the results of a measured received reference signal from the current attachment point, a measured received reference signal from each of one or more different attachment points, and uplink loading factor information. In the absence of a successfully recovered broadcast uplink loading factor corresponding to an attachment point, the wireless terminal uses a default value for that loading factor. Generated interference reports are based on beacon signal measurements and uplink loading factors, pilot signal measurements and uplink loading factors, or a mixture of beacon and pilot signal measurements and uplink loading factors.

摘要翻译： 无线终端接收并测量从多个基站附接点发送的广播参考信号，例如信标和/或导频信号。 无线终端监视并尝试恢复对应于附接点的广播加载因子信息。 无线终端根据来自当前附着点的测定的接收到的参考信号的结果，来自一个或多个不同的附接点的每一个的测量的接收参考信号以及上行链路 加载因子信息。 在没有对应于附接点的成功恢复的广播上行链路负载因子的情况下，无线终端使用该负载因子的默认值。 生成的干扰报告基于信标信号测量和上行链路负载因子，导频信号测量和上行链路负载因子，或信标和导频信号测量和上行链路负载因子的混合。

公开(公告)号：US08442529B2

公开(公告)日：2013-05-14

申请号：US12049088

申请日：2008-03-14

申请人： Shailesh Patil ,  Prashanth Hande ,  Hyung Myung

发明人： Shailesh Patil ,  Prashanth Hande ,  Hyung Myung

IPC分类号： H04W36/00 ,  H04W4/00

CPC分类号： H04W36/165 ,  H04W36/26 ,  H04W36/36

摘要： Methods and apparatus for making handoff decisions in an access terminal which can support both best effort and QoS traffic, e.g., when operating in a best effort and QoS mode of operation, respectively, are described. The access terminal receives an indicator indicating the fraction of communications resources not utilized for QoS service and information indicating a number of best effort users being supported by the attachment point. During QoS mode operation, connections to attachment points which can support the access terminal's minimal QoS requirements are identified and then from among the identified set, the attachment point which can provide a connect supporting the most best effort traffic from the access terminal is selected. In best effort mode operation the access terminal selects the attachment point connection which will provide the greatest amount of throughput to the access terminal for best effort traffic.

摘要翻译： 描述了在能够支持最佳努力和QoS业务的接入终端中进行切换决策的方法和装置，例如分别以尽力而为和操作模式操作时。 接入终端接收指示未被用于QoS服务的通信资源的分数的指标，以及指示由附接点支持的尽力而为用户数的信息。 在QoS模式操作期间，识别可以支持接入终端的最小QoS​​要求的连接点的连接，然后从所识别的集合中，选择可以提供支持来自接入终端的最尽力流量的连接的连接点。 在尽力而为模式操作中，接入终端选择将为接入终端提供最大吞吐量的连接点连接以实现尽力而为业务。

公开(公告)号：US20090131069A1

公开(公告)日：2009-05-21

申请号：US11943512

申请日：2007-11-20

申请人： Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

发明人： Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

IPC分类号： H04Q7/20

CPC分类号： H04W72/085 ,  H04W72/0406

摘要： Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).

公开(公告)号：US20090131068A1

公开(公告)日：2009-05-21

申请号：US11943504

申请日：2007-11-20

申请人： Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

发明人： Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

IPC分类号： H04Q7/20

CPC分类号： H04W72/1231 ,  H04W72/1268

摘要： Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).

公开(公告)号：US20080316979A1

公开(公告)日：2008-12-25

申请号：US11487291

申请日：2006-07-14

申请人： Rajiv Laroia ,  Prasanna Nadhamuni ,  Rick Dynarski ,  George Tsirtsis ,  Vincent D. Park ,  M. Scott Corson ,  Pablo Anigstein ,  Prashanth Hande

发明人： Rajiv Laroia ,  Prasanna Nadhamuni ,  Rick Dynarski ,  George Tsirtsis ,  Vincent D. Park ,  M. Scott Corson ,  Pablo Anigstein ,  Prashanth Hande

IPC分类号： H04Q7/24

CPC分类号： H04L61/2015 ,  H04W8/26 ,  H04W80/04

摘要： The claimed subject matter relates to configuring a host device through utilization of MMP, which is a protocol that is based upon MIP but not associated with several deficiencies associated therewith. In particular, a wireless terminal can be configured to run MMP and send messages that conform to MMP over a wireless link. A base station can be configured to act as a DHCP server. The base station can provide configuration information to host device by way of DHCP.

摘要翻译： 所要求保护的主题涉及通过利用MMP来配置主机设备，MMP是基于MIP但不与其相关联的几个缺陷相关联的协议。 特别地，无线终端可以被配置为运行MMP并通过无线链路发送符合MMP的消息。 可以将基站配置为充当DHCP服务器。 基站可以通过DHCP方式向主机提供配置信息。

公开(公告)号：US20070104164A1

公开(公告)日：2007-05-10

申请号：US11487017

申请日：2006-07-14

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

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

IPC分类号： H04Q7/24

CPC分类号： H04W24/08 ,  H04B17/345 ,  H04B17/382 ,  H04W72/08

摘要： A wireless terminal receives and measures broadcast reference signals, e.g., beacon and/or pilot signals, transmitted from a plurality of base station attachment points. The wireless terminal monitors for and attempts to recover broadcast loading factor information corresponding to attachment points. The wireless terminal generates and transmits an interference report to a current attachment point, the report based on the results of a measured received reference signal from the current attachment point, a measured received reference signal from each of one or more different attachment points, and uplink loading factor information. In the absence of a successfully recovered broadcast uplink loading factor corresponding to an attachment point, the wireless terminal uses a default value for that loading factor. Generated interference reports are based on beacon signal measurements and uplink loading factors, pilot signal measuereents and uplink loading factors, or a mixture of beacon and pilot signal measurements and uplink loading factors.

摘要翻译： 无线终端接收并测量从多个基站附接点发送的广播参考信号，例如信标和/或导频信号。 无线终端监视并尝试恢复对应于附接点的广播加载因子信息。 无线终端根据来自当前附着点的测定的接收到的参考信号的结果，来自一个或多个不同的附接点的每一个的测量的接收参考信号以及上行链路 加载因子信息。 在没有对应于附接点的成功恢复的广播上行链路负载因子的情况下，无线终端使用该负载因子的默认值。 生成的干扰报告基于信标信号测量和上行链路负载因子，导频信号测量和上行链路负载因子，或信标和导频信号测量和上行链路负载因子的混合。

公开(公告)号：US08712448B2

公开(公告)日：2014-04-29

申请号：US12751961

申请日：2010-03-31

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

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

IPC分类号： H04W68/00

CPC分类号： H04W68/025 ,  Y02D70/00

摘要： Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

公开(公告)号：US08514692B2

公开(公告)日：2013-08-20

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 ,  H04B1/00

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.

摘要翻译： 用于收集，测量，报告和/或使用可用于干扰控制目的的信息的方法和装置。 无线终端测量从一个或多个基站（例如，基站扇区发射机）发射的信号。 所测量的信号可以是例如信标信号和/或导频信号。 从所测量的信号中，无线终端产生一个或多个增益比，其提供关于来自不同基站扇区到无线终端的通信信道的相对增益的信息。 该信息表示干扰信息，因为它提供了关于由来自其他基站扇区的相对于由无线终端所附接的基站扇区所做的传输而引起的信号干扰的信息。 基于从能量测量产生的信号能量测量和相对增益，根据本发明生成报告并发送到一个或多个基站。

公开(公告)号：US20120214527A1

公开(公告)日：2012-08-23

申请号：US13288931

申请日：2011-11-03

申请人： Arnaud Meylan ,  Jay Kumar Sundararajan ,  Gerardo Giaretta ,  Prashanth Hande ,  Arvind V. Santhanam ,  Satashu Goel

发明人： Arnaud Meylan ,  Jay Kumar Sundararajan ,  Gerardo Giaretta ,  Prashanth Hande ,  Arvind V. Santhanam ,  Satashu Goel

IPC分类号： H04W72/04

CPC分类号： H04L12/5692 ,  G06F9/5011 ,  H04L12/12 ,  H04L69/161 ,  H04L69/162 ,  H04L69/32 ,  H04M1/72519 ,  H04W4/60 ,  H04W28/02 ,  H04W36/14 ,  H04W48/06 ,  H04W48/18 ,  H04W52/02 ,  H04W52/0216 ,  H04W80/04 ,  H04W80/06 ,  H04W80/08 ,  H04W88/06 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/24

摘要： A method of wireless communication includes intercepting a request from an application desiring use of communication resources. The intercepted request is held and is then evaluated to determine whether the held request can be released. The held request is released based on the outcome of the evaluation.

摘要翻译： 一种无线通信方法包括从希望使用通信资源的应用中截取请求。 被截取的请求被保留，然后被评估以确定所保持的请求是否被释放。 举行的请求是根据评估结果发布的。