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21 条记录 (耗时 0.026 秒)

    Allocating Antennas for Cyclic Delay Diversity Transmission
    1.
    发明申请
    Allocating Antennas for Cyclic Delay Diversity Transmission 有权
    分配天线用于循环延迟分集传输

    公开(公告)号：US20110223870A1

    公开(公告)日：2011-09-15

    申请号：US12815540

    申请日：2010-06-15

    申请人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

    发明人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

    IPC分类号： H04B7/02 ,  H04B1/38

    CPC分类号： H04B7/0671 ,  H04B7/0691

    摘要： Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.

    摘要翻译： 公开了分配用于循环延迟分集（CDD）传输的天线的方法和装置。 一种方法包括估计具有多个天线的收发机的传输信道。 基于估计的传输信道来选择多个收发天线的子集。 基于单个收发器天线的传输路径的信道质量来识别该子集的单个收发天线。 从多个天线的子集中发送循环延迟分集（CDD）信号，其中从所述多个收发器天线的子集的所识别的单个收发器天线发送最小延迟的CDD信号。

    Allocating antennas for cyclic delay diversity transmission
    2.
    发明授权
    Allocating antennas for cyclic delay diversity transmission 有权
    分配天线进行循环延迟分集传输

    公开(公告)号：US08675761B2

    公开(公告)日：2014-03-18

    申请号：US12815540

    申请日：2010-06-15

    申请人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

    发明人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

    IPC分类号： H04L1/02

    CPC分类号： H04B7/0671 ,  H04B7/0691

    摘要： Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.

    摘要翻译： 公开了分配用于循环延迟分集（CDD）传输的天线的方法和装置。 一种方法包括估计具有多个天线的收发机的传输信道。 基于估计的传输信道来选择多个收发天线的子集。 基于单个收发器天线的传输路径的信道质量来识别该子集的单个收发天线。 从多个天线的子集中发送循环延迟分集（CDD）信号，其中从所述多个收发器天线的子集的所识别的单个收发器天线发送最小延迟的CDD信号。

    Method and System for Power Headroom Reporting in the Presence of Multiple Transmit Antennas
    6.
    发明申请
    Method and System for Power Headroom Reporting in the Presence of Multiple Transmit Antennas 有权
    多发射天线存在的功率余量报告方法与系统

    公开(公告)号：US20120213149A1

    公开(公告)日：2012-08-23

    申请号：US13077839

    申请日：2011-03-31

    申请人： Soumen Chakraborty ,  Rishi Ranjan ,  Erik Stauffer ,  Kamlesh Rath ,  Manish Airy

    发明人： Soumen Chakraborty ,  Rishi Ranjan ,  Erik Stauffer ,  Kamlesh Rath ,  Manish Airy

    IPC分类号： H04W52/18

    CPC分类号： H04W52/365 ,  H04W52/146 ,  H04W52/42

    摘要： A method and system are provided in which a mobile device may be operable for long term evolution (LTE) communication or some other wireless technology via two or more transmit antennas. The device may comprise a power amplifier for each transmit antenna with substantially similar maximum power being provided by both amplifiers. A power headroom value may be determined in the device based on path loss values between the transmit antennas and a base station and the maximum transmit power for each transmit antenna. Transmission via one of the transmit antennas may occur concurrently with transmission via another of the transmit antennas. The device may generate an indication of the determined power headroom value for communication to the base station. The power headroom value may be reported periodically or in response to a change in the power received at the base station.

    摘要翻译： 提供了一种方法和系统，其中移动设备可以经由两个或更多个发射天线用于长期演进（LTE）通信或一些其它无线技术。 该装置可以包括用于每个发射天线的功率放大器，其具有由两个放大器提供的基本相似的最大功率。 可以在设备中基于发射天线和基站之间的路径损耗值和每个发射天线的最大发射功率来确定功率余量值。 经由其中一个发射天线的传输可以通过另一个发射天线发射同时进行。 设备可以产生用于与基站通信的所确定的功率余量值的指示。 功率余量值可以周期性地或响应于在基站处接收的功率的变化来报告。

    Method and system for power headroom reporting in the presence of multiple transmit antennas
    7.
    发明授权
    Method and system for power headroom reporting in the presence of multiple transmit antennas 有权
    在存在多个发射天线的情况下进行功率余量报告的方法和系统

    公开(公告)号：US09173178B2

    公开(公告)日：2015-10-27

    申请号：US13077839

    申请日：2011-03-31

    申请人： Soumen Chakraborty ,  Rishi Ranjan ,  Erik Stauffer ,  Kamlesh Rath ,  Manish Airy

    发明人： Soumen Chakraborty ,  Rishi Ranjan ,  Erik Stauffer ,  Kamlesh Rath ,  Manish Airy

    IPC分类号： H04W52/36 ,  H04W52/14 ,  H04W52/42

    CPC分类号： H04W52/365 ,  H04W52/146 ,  H04W52/42

    摘要： A method and system are provided in which a mobile device may be operable for long term evolution (LTE) communication or some other wireless technology via two or more transmit antennas. The device may comprise a power amplifier for each transmit antenna with substantially similar maximum power being provided by both amplifiers. A power headroom value may be determined in the device based on path loss values between the transmit antennas and a base station and the maximum transmit power for each transmit antenna. Transmission via one of the transmit antennas may occur concurrently with transmission via another of the transmit antennas. The device may generate an indication of the determined power headroom value for communication to the base station. The power headroom value may be reported periodically or in response to a change in the power received at the base station.

    摘要翻译： 提供了一种方法和系统，其中移动设备可以经由两个或更多个发射天线用于长期演进（LTE）通信或一些其它无线技术。 该装置可以包括用于每个发射天线的功率放大器，其具有由两个放大器提供的基本相似的最大功率。 可以在设备中基于发射天线和基站之间的路径损耗值和每个发射天线的最大发射功率来确定功率余量值。 经由其中一个发射天线的传输可以通过另一个发射天线发射同时进行。 设备可以产生用于与基站通信的所确定的功率余量值的指示。 功率余量值可以周期性地或响应于在基站处接收的功率的变化来报告。

    WIRELESS COMMUNICATION DEVICE CAPABLE OF EFFICIENT HANDOFFS
    8.
    发明申请
    WIRELESS COMMUNICATION DEVICE CAPABLE OF EFFICIENT HANDOFFS 有权
    无线通信设备，具有高效的手持设备

    公开(公告)号：US20130130694A1

    公开(公告)日：2013-05-23

    申请号：US13340384

    申请日：2011-12-29

    申请人： Arzad Alam KHERANI ,  Soumen Chakraborty ,  Erik Stauffer ,  Manish Airy ,  Rishi Ranjan ,  Phani Kiran Boddapati ,  C. Ashok Kumar Reddy

    发明人： Arzad Alam KHERANI ,  Soumen Chakraborty ,  Erik Stauffer ,  Manish Airy ,  Rishi Ranjan ,  Phani Kiran Boddapati ,  C. Ashok Kumar Reddy

    IPC分类号： H04W36/30

    CPC分类号： H04W52/0216 ,  H03D7/16 ,  H04L41/0803 ,  H04W28/0263 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

    摘要： A wireless communication device is disclosed that is capable of performing efficient handoffs in order to maximize connection time with either a serving or target base station. The wireless communication device performs measurements of only intra-frequency base stations to avoid retuning its radio module. Based on this information, as well as stored information relating to nearby base stations, the serving base station is able to estimate a position of the wireless communication device and compare the estimated position to positions of the known base stations in order to make a handoff decision. In addition, by storing information during measurement or handoff preparation, the device is capable of skipping handoff steps, immediately return to the serving base station after handoff failure, and/or perform streamlined PLMN searching.

    摘要翻译： 公开了能够执行有效切换以便与服务或目标基站的连接时间最大化的无线通信设备。 无线通信设备仅执行频率内基站的测量，以避免重新调谐其无线电模块。 基于该信息以及与附近基站相关的存储信息，服务基站能够估计无线通信设备的位置，并将估计位置与已知基站的位置进行比较，以便进行切换决策 。 此外，通过在测量或切换准备期间存储信息，该设备能够跳过切换步骤，在切换失败之后立即返回到服务基站，和/或执行流线型PLMN搜索。

    Transmit power management for specific absorption rates
    10.
    发明授权
    Transmit power management for specific absorption rates 有权
    发射功率管理具体吸收率

    公开(公告)号：US08825102B2

    公开(公告)日：2014-09-02

    申请号：US13238809

    申请日：2011-09-21

    申请人： Soumen Chakraborty ,  Rishi Ranjan ,  Kamlesh Rath ,  Manish Airy

    发明人： Soumen Chakraborty ,  Rishi Ranjan ,  Kamlesh Rath ,  Manish Airy

    IPC分类号： H04W52/04 ,  H04B1/38 ,  H04W52/22 ,  H04W52/36 ,  H04W52/18 ,  H04W52/34 ,  H01Q1/24

    CPC分类号： H04B1/3838 ,  H01Q1/245 ,  H04W52/18 ,  H04W52/228 ,  H04W52/288 ,  H04W52/346 ,  H04W52/367 ,  H04W52/38

    摘要： Systems and methods for regulating transmit power in a mobile station to comply with SAR limits are disclosed. A mobile station may include a processor, transmitter, and proximity sensor. The transmitter is configured to operate at a transmit power controlled by a first transmit power limit. The proximity sensor identifies how close the mobile station is to a human head. A transmit power regulator, implemented on the processor, determines the cumulative energy radiated by the transmitter over a specified number of frames. If the cumulative energy exceeds an energy limit based on a SAR limit, and the proximity sensor indicates that the mobile station is close to a human head, the transmit power regulator may decrease the transmit power limit of the transmitter.

    摘要翻译： 公开了一种用于调节移动台中发射功率以符合SAR限制的系统和方法。 移动台可以包括处理器，发射机和接近传感器。 发射器被配置为以由第一发射功率限制控制的发射功率工作。 接近传感器识别移动台到人头的距离。 在处理器上实现的发射功率调节器确定发射机在指定数量帧上辐射的累积能量。 如果累积能量基于SAR限制超过能量限制，并且接近传感器指示移动站接近人头，则发射功率调节器可以降低发射机的发射功率限制。