MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE
    41.
    发明申请
    MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE 审中-公开
    管理发射功率,在电视白天更好的频率重新使用

    公开(公告)号:US20130044681A1

    公开(公告)日:2013-02-21

    申请号:US13397493

    申请日:2012-02-15

    IPC分类号: H04W4/00

    摘要: Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. By managing transmit power as described herein, medium re-use may be improved in such a network, and unfair usage problems may be alleviated. One example method generally includes receiving a request message comprising an indication of a modulation and coding scheme (MCS) for transmitting data frames to be received, determining a link margin based on the MCS, and transmitting a response message with an indication of the link margin. Another example method generally includes determining a MCS for transmitting data frames and transmitting a request message comprising an indication of the MCS.

    摘要翻译: 本公开的某些方面提供了用于管理电视空白(TVWS)网络中的发射功率的技术和装置。 通过如本文所述管理发送功率,可以在这样的网络中改善中等重复使用,并且可以减轻不公平的使用问题。 一个示例性方法通常包括接收包括用于发送要接收的数据帧的调制和编码方案(MCS)的指示的请求消息,基于MCS确定链路余量,以及发送具有链路余量指示的响应消息 。 另一示例性方法通常包括确定用于发送数据帧的MCS并发送包括MCS的指示的请求消息。

    MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE
    42.
    发明申请
    MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE 有权
    管理发射功率,在电视白天更好的频率重新使用

    公开(公告)号:US20130044680A1

    公开(公告)日:2013-02-21

    申请号:US13397473

    申请日:2012-02-15

    IPC分类号: H04W52/04

    摘要: Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. By managing transmit power as described herein, medium re-use may be improved in such a network, and unfair usage problems may be alleviated. One example method generally includes receiving, from an apparatus, a message with an indication of a highest transmit power used by the apparatus for transmitting data frames; and determining that the apparatus is a dominant interferer based, at least in part, on the highest transmit power. Another example method generally includes receiving, from an apparatus, a control or management message with a first indication of a first transmit power used by the apparatus for transmitting data frames; and determining that the apparatus is a dominant interferer based, at least in part, on the first transmit power.

    摘要翻译: 本公开的某些方面提供了用于管理电视空白(TVWS)网络中的发射功率的技术和装置。 通过如本文所述管理发送功率,可以在这样的网络中改善中等重复使用,并且可以减轻不公平的使用问题。 一个示例性方法通常包括从设备接收具有由用于发送数据帧的设备使用的最高发射功率的指示的消息; 以及至少部分地基于最高发射功率确定所述装置是主要干扰源。 另一示例性方法通常包括从装置接收控制或管理消息,其具有用于发送数据帧的装置所使用的第一发射功率的第一指示; 以及至少部分地基于所述第一发射功率来确定所述装置是主要干扰源。

    Signaling methods for MMSE precoding with eigenmode selection
    43.
    发明授权
    Signaling methods for MMSE precoding with eigenmode selection 有权
    用于本征模式选择的MMSE预编码的信令方法

    公开(公告)号:US08363587B2

    公开(公告)日:2013-01-29

    申请号:US12408938

    申请日:2009-03-23

    IPC分类号: H04H20/71

    摘要: Different methods of signaling between an access point and user terminals in a multiuser wireless system for performing a minimum mean square error (MMSE) precoding at the access point preceded with eigenmode selection are provided. For one embodiment of the present disclosure, a compact feedback may be utilized between a plurality of user terminals and the access point. For another embodiment of the present disclosure, a hybrid feedback may be utilized between the plurality of user terminals and the access point. For yet another embodiment of the present disclosure, a full feedback may be utilized between the plurality of user terminals and the access point.

    摘要翻译: 提供了在多用户无线系统中的接入点和用户终端之间用于在本征模式选择之前的接入点执行最小均方误差(MMSE)预编码的不同的信令方法。 对于本公开的一个实施例,可以在多个用户终端和接入点之间使用紧凑的反馈。 对于本公开的另一实施例,可以在多个用户终端和接入点之间使用混合反馈。 对于本公开的另一个实施例,可以在多个用户终端和接入点之间使用完全反馈。

    Scalable MIMO-OFDM PHY for high throughput WLANS
    45.
    发明授权
    Scalable MIMO-OFDM PHY for high throughput WLANS 有权
    可扩展的MIMO-OFDM PHY,用于高吞吐量WLANS

    公开(公告)号:US08345534B1

    公开(公告)日:2013-01-01

    申请号:US13206105

    申请日:2011-08-09

    IPC分类号: H04J11/00

    摘要: A transceiver including a frame formatter configured to generate a frame including orthogonal frequency-division multiplexing (OFDM) symbols for transmission on a plurality of antennas. The frame includes a short preamble including a short training symbol including a plurality of adjacent tones, wherein at least a plurality of the adjacent tones in the plurality are mapped to different ones of the plurality of antennas; a long preamble including at least a first set of long training symbols; a header including at least a first SIGNAL symbol; and a data field.

    摘要翻译: 一种收发器,包括帧格式化器,被配置为生成包括用于在多个天线上传输的正交频分复用(OFDM)符号的帧。 所述帧包括短前导码,其包括包括多个相邻音调的短训练符号,其中所述多个中的至少多个相邻音调被映射到所述多个天线中的不同天线; 包括至少第一组长训练符号的长前导码; 标题,其包括至少第一信号符号; 和一个数据字段。

    Reference signal management in mobile systems
    49.
    发明授权
    Reference signal management in mobile systems 失效
    移动系统中的参考信号管理

    公开(公告)号:US08208920B2

    公开(公告)日:2012-06-26

    申请号:US12349399

    申请日:2009-01-06

    IPC分类号: H04W4/00 H04W36/00 H04B1/38

    摘要: A reference signal management (RSM) program executing on a mobile device detects multiple reference signals, allocates those reference signals into groups, and performs reference signal management functions using information conveyed in the reference signals. The RSM program detects both broadband and narrowband reference signals and maintains updated groups of reference signals that are transmitted from access points with independent configurations or different radio technologies. Battery power of the mobile device is efficiently used to manage reference signals in heterogeneous network environments by preventing unnecessary handoffs, overhead downloads, access probes and new registrations. Reference signals are managed from both synchronous and asynchronous sectors and in idle mode as well as in connected state mode. The RSM program performs functions such as managing handoffs between access points, managing an idle mode of the mobile device, managing an active group of the detected reference signals, and collecting overhead parameters for the mobile device.

    摘要翻译: 在移动设备上执行的参考信号管理(RSM)程序检测多个参考信号,将这些参考信号分组,并使用在参考信号中传送的信息来执行参考信号管理功能。 RSM程序检测宽带和窄带参考信号,并维护从具有独立配置或不同无线电技术的接入点发送的更新的参考信号组。 通过防止不必要的切换,开销下载,接入探测和新的注册,移动设备的电池功率被有效地用于在异构网络环境中管理参考信号。 参考信号由同步和异步扇区以及空闲模式以及连接状态模式进行管理。 RSM程序执行诸如管理接入点之间的切换,管理移动设备的空闲模式,管理检测到的参考信号的活动组以及收集移动设备的开销参数的功能。

    APPARATUS, METHODS, AND ARTICLES OF MANUFACTURE FOR ADAPTIVE POWER CONTROL
    50.
    发明申请
    APPARATUS, METHODS, AND ARTICLES OF MANUFACTURE FOR ADAPTIVE POWER CONTROL 有权
    装置,方法和制造自适应功率控制的文章

    公开(公告)号:US20120147795A1

    公开(公告)日:2012-06-14

    申请号:US12408346

    申请日:2009-03-20

    IPC分类号: H04W4/00 H04J1/00

    CPC分类号: H04W52/362

    摘要: In embodiments, a first wireless device generates symbols for transmission to another wireless device. Adaptive power control is applied to the transmissions, for example, at symbol or frame boundaries. When a transmit power gain adjustment exceeds a threshold, all or part of the gain adjustment may be performed on the generated symbols before the symbols are combined in an overlap-and-add process. Part of the gain adjustment may also be performed through adjustment of the power amplifier. When the gain adjustment does not exceed the threshold, all of the gain adjustment may be performed through adjustment of the power amplifier. Performing gain adjustment before the overlap-and-add process results in a lower spectral spread of the transmitted waveform and improved bandwidth utilization efficiency. In embodiments, the power adjustment techniques are used in FDD/OFDM systems or other systems where a plurality of symbols or frames is transmitted substantially continuously.

    摘要翻译: 在实施例中,第一无线设备生成用于传输到另一无线设备的符号。 自适应功率控制被应用于传输,例如在符号或帧边界。 当发射功率增益调整超过阈值时,可以在符号在重叠和相加处理中组合之前对生成的符号执行全部或部分增益调整。 增益调整的一部分也可以通过功率放大器的调节来执行。 当增益调整不超过阈值时,可以通过功率放大器的调节来执行所有增益调整。 在重叠和添加过程之前执行增益调整会导致传输波形的较低频谱扩展,并提高带宽利用率。 在实施例中,功率调整技术用于FDD / OFDM系统或其中基本连续地发送多个符号或帧的其他系统。