Legacy operations in a MU MIMO wireless network
    131.
    发明授权
    Legacy operations in a MU MIMO wireless network 有权
    MU MIMO无线网络中的传统操作

    公开(公告)号:US08774088B2

    公开(公告)日:2014-07-08

    申请号:US12752715

    申请日:2010-04-01

    IPC分类号: H04W4/00

    摘要: In a network that contains both new devices capable of using wide channels and legacy devices that can only use narrow channels, the network controller may define which devices are to use which narrow channels for concurrently transmitting uplink acknowledgements. Further, the network controller may schedule the devices to respond in groups based on the received signal strength of their transmissions at the network controller.

    摘要翻译: 在包含能够使用宽信道的新设备和只能使用窄信道的传统设备的网络中,网络控制器可以定义哪些设备将使用哪个窄信道来同时发送上行确认。 此外,网络控制器可以根据其在网络控制器处的传输的接收信号强度来调度设备以分组的方式进行响应。

    SYSTEMS AND METHODS FOR IMPLEMENTING INTELLIGENT WIDEBAND DIGITAL FREQUENCY SELECTION SCANNING
    133.
    发明申请
    SYSTEMS AND METHODS FOR IMPLEMENTING INTELLIGENT WIDEBAND DIGITAL FREQUENCY SELECTION SCANNING 有权
    实现智能宽带数字频率选择扫描的系统和方法

    公开(公告)号:US20130252640A1

    公开(公告)日:2013-09-26

    申请号:US13532622

    申请日:2012-06-25

    IPC分类号: H04W24/00

    CPC分类号: H04W48/16 H04W48/04

    摘要: A system and method are provided to intelligently undertake mandated scanning for radar signals prior to operating a particular wireless device in the 5 GHz band. The disclosed systems and methods provide a capability by which wireless devices are enabled to intelligently scan using a 160 MHz signal, or the largest bandwidth that the wireless device has the capacity to occupy. The disclosed scheme makes use of information about the location of the wireless device to determine characteristic of the environment in which the wireless device is operating. Locations of potentially conflicting radar installations, such as at airports and on military installations, are generally “known.” This information is used to compare to a determined geographic location of the wireless device to assess whether full broad bandwidth DFS scanning cane be reasonably undertaken or whether some narrower channel scanning is appropriate for the wireless device based on proximity to radar installations.

    摘要翻译: 提供了一种系统和方法,用于在操作5 GHz频带内的特定无线设备之前智能地执行雷达信号的强制扫描。 所公开的系统和方法提供使无线设备能够使用160MHz信号或无线设备具有占用能力的最大带宽进行智能扫描的能力。 所公开的方案利用关于无线设备的位置的信息来确定无线设备正在运行的环境的特性。 有可能存在冲突的雷达装置的地点,例如在机场和军事设施上,通常是“已知的”。 该信息用于与确定的无线设备的地理位置进行比较,以评估是否可以合理地执行全宽带宽DFS扫描范围,或者基于与雷达安装的接近度,是否有些较窄的信道扫描适用于无线设备。

    Frame format techniques for non-resolvable long training fields in wireless networks
    134.
    发明授权
    Frame format techniques for non-resolvable long training fields in wireless networks 有权
    无线网络中不可解析的长训练场的帧格式技术

    公开(公告)号:US08532077B2

    公开(公告)日:2013-09-10

    申请号:US12967472

    申请日:2010-12-14

    IPC分类号: H04W84/02

    摘要: An embodiment of the present invention provides non-resolvable long training field (LTF) formatting methods used in wireless networks, comprising defining the non-resolvable LTF frame format so that a transmission of VHT-SIG-B is aligned for all users, thereby requiring that a VHT-LTF portion of a packet be of a same duration for all users.

    摘要翻译: 本发明的一个实施例提供了在无线网络中使用的不可解析的长训练场(LTF)格式化方法,包括定义不可分辨的LTF帧格式,使得VHT-SIG-B的传输对于所有用户,从而要求 分组的VHT-LTF部分对于所有用户具有相同的持续时间。

    TECHNIQUES FOR WAKEUP SIGNALING FOR A VERY LOW POWER WLAN DEVICE
    136.
    发明申请
    TECHNIQUES FOR WAKEUP SIGNALING FOR A VERY LOW POWER WLAN DEVICE 有权
    用于唤醒信号的技术用于非常低功率的WLAN设备

    公开(公告)号:US20120120859A1

    公开(公告)日:2012-05-17

    申请号:US12947215

    申请日:2010-11-16

    IPC分类号: H04W52/02 G06F1/32

    摘要: An embodiment of the present invention provides a method of wakeup signaling for a very low power wireless local area network device (WLAN) device, comprising transmitting by an access point operable in the WLAN of a wake-up signal that can be received using low-power techniques at a receiver associated with the device.

    摘要翻译: 本发明的一个实施例提供了一种用于非常低功率无线局域网设备(WLAN)设备的唤醒信令的方法,包括由WLAN中可操作的接入点发送可以使用低功率无线局域网设备(WLAN)接收的唤醒信号, 与设备相关的接收机的功率技术。

    Interference management of a processing communications satellite
    138.
    发明授权
    Interference management of a processing communications satellite 有权
    处理通信卫星的干扰管理

    公开(公告)号:US06865166B1

    公开(公告)日:2005-03-08

    申请号:US09187370

    申请日:1998-11-06

    CPC分类号: H04B7/18532

    摘要: A satellite based cellular communications system (10) for servicing multiple user terminals (14) is provided. The satellite based cellular communications system (10) includes at least one processing communications satellite (12) which supports communications uplinks (16) and communications downlinks (18) between multiple user terminals (14). A network operations center (24) having a central control processor (26) communicates with the processing communication satellite (12) on the communications uplinks (16) and the communications downlinks (18). The central control processor (26) minimizes intra-system interference between the multiple user terminals (14) by allocating a connection parameter to each user terminal (14) based upon accessing a plurality of communication system parameters.

    摘要翻译: 提供了一种用于维修多个用户终端(14)的基于卫星的蜂窝通信系统(10)。 基于卫星的蜂窝通信系统(10)包括支持多个用户终端(14)之间的通信上行链路(16)和通信下行链路(18)的至少一个处理通信卫星(12)。 具有中央控制处理器(26)的网络操作中心(24)在通信上行链路(16)和通信下行链路(18)上与处理通信卫星(12)进行通信。 中央控制处理器(26)通过基于访问多个通信系统参数向每个用户终端(14)分配连接参数来最小化多个用户终端(14)之间的系统内干扰。

    Cellular satellite communication system and method for controlling antenna gain pattern therein
    139.
    发明授权
    Cellular satellite communication system and method for controlling antenna gain pattern therein 有权
    蜂窝卫星通信系统及其中控制天线增益模式的方法

    公开(公告)号:US06188896B1

    公开(公告)日:2001-02-13

    申请号:US09255175

    申请日:1999-02-22

    IPC分类号: H04B7185

    CPC分类号: H04B7/18515

    摘要: A satellite-based telecommunication system is provided which communicates with earth-based users located within a predetermined communications area. The communications areas have an associated interference pattern. A satellite antenna is controlled to form an antenna gain pattern distributed across the communications area. The antenna gain pattern represents the gain at any given point within the communications area. The interference pattern corresponds to the amount of interference associated with each point within the communications area. A method and apparatus are provided for controlling the gain defined by a transmitter and/or receiver of a satellite. The transmitter/receiver produces a desired antenna gain pattern. The preferred embodiment includes determining an interference pattern associated with a communications area of interest. Once the interference pattern is identified, a desired antenna gain pattern is then identified. It is preferable that the antenna gain pattern conform to the interference pattern for the communications area.

    摘要翻译: 提供了一种基于卫星的电信系统,其与位于预定通信区域内的基于地球的用户进行通信。 通信区域具有相关联的干扰模式。 控制卫星天线以形成分布在通信区域上的天线增益模式。 天线增益模式表示通信区域内任何给定点处的增益。 干扰模式对应于与通信区域内的每个点相关联的干扰量。 提供了一种用于控制由卫星的发射机和/或接收机定义的增益的方法和装置。 发射机/接收机产生所需的天线增益模式。 优选实施例包括确定与感兴趣的通信区域相关联的干扰模式。 一旦识别出干扰图案,则识别出期望的天线增益模式。 优选地,天线增益模式符合通信区域的干扰模式。

    Method for enhancing the performance of a satellite communications
system using multibeam antennas
    140.
    发明授权
    Method for enhancing the performance of a satellite communications system using multibeam antennas 有权
    使用多波束天线提高卫星通信系统性能的方法

    公开(公告)号:US6150977A

    公开(公告)日:2000-11-21

    申请号:US183273

    申请日:1998-10-30

    IPC分类号: H04B7/204 H04B7/185 H01Q3/00

    CPC分类号: H04B7/2041

    摘要: The present invention provides a method for determining antenna pointing error of a satellite antenna (702-716) that produces at least one spot beam having a corresponding gain pattern. The method obtains from a first unique location (510) on the ground a first measurement of a spot beam strength for a first cell (502). Similar measurements are obtained at second and third unique locations (512, 514). Attitude component errors, for example the roll or pitch attitude component errors may then be determined. The method may further determine a yaw attitude component error based on fourth, fifth, and sixth measurements of spot beam strength made from unique locations (616-620) in a second cell (604) also generated by the antenna. Additional measurements may be collected in each beam at unique locations (510-514, 516-520, 610-614, 616-620) and averaged to reduce the temporary or zero means effects of rain, scintillation, or other atmospheric conditions on the spot beam strength. Furthermore, the method may transmit any of the measurements to a central processor (422) which determines the attitude component errors based on the measurements.

    摘要翻译: 本发明提供了一种用于确定卫星天线(702-716)的天线指向误差的方法,其产生具有相应增益模式的至少一个点波束。 该方法从地面上的第一唯一位置(510)获得第一单元(502)的点束强度的第一测量。 在第二和第三独特位置(512,514)获得类似的测量。 然后可以确定姿态分量误差,例如滚动或俯仰姿态分量误差。 该方法还可以基于也由天线产生的第二小区(604)中的唯一位置(616-620)进行的基于第四,第五和第六测量点射束强度来确定偏航姿态分量误差。 可以在独特位置(510-514,516-520,610-614,616-620)的每个光束中收集附加测量值,并对其进行平均,以减少现场的雨,闪烁或其他大气条件的临时或零均值影响 梁强度。 此外,该方法可以将任何测量结果发送到中央处理器(422),中央处理器(422)基于测量确定姿态分量误差。