利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4399 条记录 (耗时 0.027 秒)

    Peak-to-average power reduction method
    101.
    发明授权
    Peak-to-average power reduction method 有权
    峰均功率降低方法

    公开(公告)号：US09088467B2

    公开(公告)日：2015-07-21

    申请号：US14199013

    申请日：2014-03-06

    申请人： Nautel Limited

    发明人： Brian Walker ,  Philipp Schmid

    IPC分类号： H04L27/28 ,  H04L27/26 ,  H04B1/04

    CPC分类号： H04L27/2614 ,  H04B1/0475 ,  H04B2001/0416 ,  H04L27/2623

    摘要： A method of reducing peak-to-average power in a hybrid signal is provided. The method determines peaks in power by defining a sample point by way of a digital vector and an analog vector. The digital and analog vectors are added together to generate a hybrid vector which is used to compare the sample point to the maximum desired peak threshold. An error vector is used to correct the sample point to a desired power level. Once the sample point has been corrected it can be added back to the analog signal and transmitted.

    摘要翻译： 提供了一种降低混合信号中的峰均功率的方法。 该方法通过数字矢量和模拟矢量定义采样点来确定功率峰值。 将数字和模拟向量相加在一起以产生用于将采样点与最大期望峰值阈值进行比较的混合矢量。 使用误差向量将采样点校正到所需的功率水平。 一旦采样点被校正，可以将其加回到模拟信号并传输。

    Systems and methods for generating a pre-coding code book
    102.
    发明授权
    Systems and methods for generating a pre-coding code book 有权
    用于生成预编码代码簿的系统和方法

    公开(公告)号：US09083407B2

    公开(公告)日：2015-07-14

    申请号：US13121953

    申请日：2008-10-01

    申请人： Lei Wan ,  Pål Frenger ,  Qingyu Miao

    发明人： Lei Wan ,  Pål Frenger ,  Qingyu Miao

    IPC分类号： H04K1/10 ,  H04L27/28 ,  H04B7/06

    CPC分类号： H04B7/0615 ,  H04B7/0665

    摘要： In a network comprising a signal forwarding node, a pre-coding code book generating method, wherein the method comprises: generating a pre-coding code book, wherein the pre-coding code book comprises at least one pre-coding code word corresponding to the signal forwarding node, and the pre-coding code word comprises one or more antenna beamforming weights; and communicating the pre-coding code book to a user equipment.

    摘要翻译： 在包括信号转发节点，预编码码本生成方法的网络中，其中所述方法包括：产生预编码码本，其中所述预编码码本至少包括一个对应于 信号转发节点，并且预编码码字包括一个或多个天线波束成形权重; 以及将预编码代码簿传送给用户设备。

    Dynamic assignment of MIMO modes for a wireless communication device
    104.
    发明授权
    Dynamic assignment of MIMO modes for a wireless communication device 有权
    用于无线通信设备的MIMO模式的动态分配

    公开(公告)号：US09065498B1

    公开(公告)日：2015-06-23

    申请号：US14049428

    申请日：2013-10-09

    申请人： Sprint Communications Company L.P.

    发明人： Sreekar Marupaduga ,  Muralidhar Reddy Malreddy ,  Andrew Mark Wurtenberger ,  Nicholas David Kullman

    IPC分类号： H04K1/10 ,  H04L27/28 ,  H04B7/04

    CPC分类号： H04B7/0413 ,  H04B7/0689

    摘要： A wireless access node to facilitate dynamic assignment of multiple-input multiple-output (MIMO) modes comprises a wireless communication transceiver and a processing system. The wireless communication transceiver is configured to receive a scattering coefficient transmitted from a wireless communication device served by the wireless access node. The processing system is configured to compare the scattering coefficient to a scattering threshold, and if the scattering coefficient exceeds the scattering threshold, select a lower order MIMO mode for the wireless communication device and assign the lower order MIMO mode to the wireless communication device.

    摘要翻译： 有助于多输入多输出（MIMO）模式的动态分配的无线接入节点包括无线通信收发机和处理系统。 无线通信收发器被配置为接收从由无线接入节点服务的无线通信设备发送的散射系数。 处理系统被配置为将散射系数与散射阈值进行比较，如果散射系数超过散射阈值，则为无线通信装置选择较低阶的MIMO模式，并将低阶MIMO模式分配给无线通信装置。

    Integrated multi-datastream transmission technology
    106.
    发明授权
    Integrated multi-datastream transmission technology 有权
    集成多数据流传输技术

    公开(公告)号：US09054839B2

    公开(公告)日：2015-06-09

    申请号：US13576198

    申请日：2010-12-31

    申请人： Hua Chao ,  Ji Li ,  Yonggang Wang ,  Zhongji Hu

    发明人： Hua Chao ,  Ji Li ,  Yonggang Wang ,  Zhongji Hu

    IPC分类号： H04L27/28 ,  H04W4/00 ,  H04H20/71 ,  H04L5/00 ,  H04L27/34

    CPC分类号： H04L5/0044 ,  H04L5/0091 ,  H04L27/3488

    摘要： The present invention is related to integrated multi-datastream transmission technology, more particularly, to integrated multi-datastream modulation technology. According to one aspect of the present invention, there is provided a modulation equipment (10), including: a symbol integration means (101), configured to combine a first bit stream with a second bit stream to form a symbol to be modulated; a symbol mapping means (102), configured to map the symbol to be modulated into a QAM modulation symbol according to a set of predetermined mapping rules; wherein, in the set of predetermined mapping rules, multiple constellations corresponding to any first bit stream are located in at least two quadrants in the constellation diagram, while multiple constellations corresponding to any second bit stream are located in at least two quadrants in the constellation diagram. The integrated transmission of a first service data and a second service data (e.g., unicast service data and MBMS data) may be supported and has a better performance than the prior art especially in single cell scenario by using the method, equipment and device in the present invention.

    摘要翻译： 本发明涉及集成多数据流传输技术，更具体地涉及集成多数据流调制技术。 根据本发明的一个方面，提供了一种调制设备（10），包括：符号集成装置（101），被配置为将第一比特流与第二比特流组合以形成要调制的符号; 符号映射装置（102），被配置为根据一组预定映射规则将要调制的符号映射到QAM调制符号中; 其中，在所述预定映射规则集合中，对应于任何第一比特流的多个星座位于星座图中的至少两个象限中，而对应于任何第二比特流的多个星座位于星座图中的至少两个象限中 。 可以支持第一服务数据和第二服务数据（例如，单播服务数据和MBMS数据）的集成传输，并且具有比现有技术更好的性能，特别是在单小区场景中，通过使用方法，设备和设备在 本发明。

    Digital up-converter and N-channel modulator with flexible association of QAM generation resources to narrowcast and broadcast frequencies
    108.
    发明授权
    Digital up-converter and N-channel modulator with flexible association of QAM generation resources to narrowcast and broadcast frequencies 有权
    数字上变频器和N通道调制器，具有QAM生成资源与窄频和广播频率的灵活关联

    公开(公告)号：US09049399B2

    公开(公告)日：2015-06-02

    申请号：US13739688

    申请日：2013-01-11

    申请人： Broadcom Corporation

    发明人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

    IPC分类号： H04K1/10 ,  H04L27/28 ,  H04N5/40 ,  H04L5/06 ,  H04L27/36 ,  H04L25/03

    CPC分类号： H04N5/40 ,  H04L5/06 ,  H04L25/03006 ,  H04L27/36

    摘要： Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.

    摘要翻译： 本文提供数字上变频器和N沟道调制器的实施例。 数字上变频器与N信道调制器结合的实施例能够利用一种或多种类型的信息信号有效地填充一个或多个RF信号的频谱。 例如，数字上变频器可以用广播和窄视频和数据信号来填充一个或多个RF信号的频谱。 此外，数字上变频器能够使用新颖的三电平交换架构将信息信号灵活地映射到一个或多个RF信号的一个或多个信道。

    Mobile device network signaling management
    109.
    发明授权
    Mobile device network signaling management 有权
    移动设备网络信令管理

    公开(公告)号：US09042888B2

    公开(公告)日：2015-05-26

    申请号：US13311444

    申请日：2011-12-05

    申请人： Ben-Heng Juang ,  Ravi Ayyappan ,  Shiehlie Wang

    发明人： Ben-Heng Juang ,  Ravi Ayyappan ,  Shiehlie Wang

    IPC分类号： H04W24/00 ,  H04W4/00 ,  H04W36/00 ,  H04H20/71 ,  H04K1/10 ,  H04L27/28 ,  H04W48/08 ,  H04W48/18

    CPC分类号： H04W48/08 ,  H04W24/10 ,  H04W48/18 ,  H04W48/20 ,  H04W52/0222 ,  H04W52/0245 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

    摘要： A mobile wireless device maintains a radio sector database. When receiving no response or a negative response from a radio sector to a transmitted signaling message, the mobile wireless device adds or updates the radio sector database. When receiving a positive response from the radio sector, the mobile wireless device deletes the radio sector from the radio sector database. Before transmitting signaling messages to a radio sector, the mobile device determines a time delay value if the radio sector is in the radio sector database. The mobile wireless device discards the signaling message when an elapsed time since a most recently transmitted signaling message to the radio sector does not exceed the determined time delay value. In an embodiment, each radio sector in the radio sector database includes a failure count value, and the determined time delay value depends on the failure count value.

    摘要翻译： 移动无线设备维护无线电扇区数据库。 当从无线电扇区没有接收到响应或者从发送的信令消息中得到否定的响应时，移动无线设备添加或更新无线电扇区数据库。 当从无线电扇区接收到肯定响应时，移动无线设备从无线电扇区数据库中删除无线电扇区。 在向无线电扇区发送信令消息之前，如果无线电扇区在无线电扇区数据库中，则移动设备确定时间延迟值。 当从无线电扇区的最近发送的信令消息以来的经过时间不超过确定的时间延迟值时，移动无线设备丢弃信令消息。 在一个实施例中，无线电扇区数据库中的每个无线电扇区包括故障计数值，并且确定的时间延迟值取决于故障计数值。

    Measurement method and apparatus
    110.
    发明授权
    Measurement method and apparatus 有权
    测量方法和装置

    公开(公告)号：US09042470B2

    公开(公告)日：2015-05-26

    申请号：US14127957

    申请日：2011-06-28

    申请人： Yan Li

    发明人： Yan Li

    IPC分类号： H04L27/28 ,  H04W24/02 ,  H04L27/26 ,  H04L5/00

    CPC分类号： H04W24/02 ,  H04L5/00 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2601 ,  H04L27/2647

    摘要： The disclosure discloses a measurement method. The method includes: a conjugate multiplication operation is performed on reference signals corresponding to a subcarrier within adjacent time slots to remove phase interference of the reference signals; the reference signals from which the phase interference has been removed are descrambled; and all the descrambled reference signals are accumulated. The disclosure further provides a measurement apparatus. With the technical solution of the disclosure, the operation complexity of measurement can be reduced.

    摘要翻译： 本公开公开了一种测量方法。 该方法包括：对与相邻时隙内的子载波相对应的参考信号执行共轭乘法运算，以消除参考信号的相位干扰; 去除相位干扰的参考信号被解扰; 并且所有解扰的参考信号被累积。 本发明还提供一种测量装置。 通过本公开的技术方案，可以降低测量的操作复杂度。