Wireless network repeater
    41.
    发明授权
    Wireless network repeater 有权
    无线网络中继器

    公开(公告)号:US07990904B2

    公开(公告)日:2011-08-02

    申请号:US10536471

    申请日:2003-12-16

    Abstract: A frequency translating repeater (250) for use in a time division duplex radio protocol communications system includes a processor (260), a bus (261), a memory (262), an RF section (264), and an integrated station device (264). An access point (210) is detected based on information transmitted frequency channels using a protocol. Detection is initiated automatically during a power-on sequence or by activating an input device such as a button. Frequency channels are scanned for a beacon signal and an access point chosen as a preferred access point based on a metric such as power level.

    Abstract translation: 用于时分双工无线电协议通信系统的频率转换中继器(250)包括处理器(260),总线(261),存储器(262),RF部分(264)和集成站设备 264)。 基于使用协议的信息发送的频率信道来检测接入点(210)。 在开机顺序期间或通过激活输入设备(例如按钮)自动启动检测。 基于诸如功率电平的度量,对信标信号和被选择为优选接入点的接入点扫描频道。

    System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
    42.
    发明授权
    System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system 有权
    用于通过CDMA无线通信系统的反向链路维持同步消息定时的系统和方法

    公开(公告)号:US07936728B2

    公开(公告)日:2011-05-03

    申请号:US09997732

    申请日:2001-11-29

    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase, time and power synchronism while maintaining optimal timing control over synchronization messages. This in turn allows fast acquisition of additional reverse link capacity as needed by allocating additional orthogonal codes within the same code phase and by varying the spreading factor of the codes, as well as by adding additional code phases.

    Abstract translation: 一种用于CDMA无线通信的服务选项覆盖,其中通过向每个子信道分配给定长伪噪声(PN)码的不同码相位,在反向链路上定义多个可分配子信道。 然后通过根据需要基于每个网络层连接动态分配一个,一个或多个子信道来满足每个在线订户单元的瞬时带宽需求。 系统有效地在用户单元和反向链路上的基站之间提供相对大量的虚拟物理连接,用于延长的空闲周期,例如当连接到订户单元的计算机上电时,而不是当前主动发送或接收数据。 这些维护子信道允许基站和用户单元保持同步,时间和功率同步,同时保持对同步消息的最佳定时控制。 这又允许通过在相同码相中分配附加正交码并通过改变码的扩展因子以及通过添加附加码相位来快速获取额外的反向链路容量。

    Automatic gain control and filtering techniques for use in on-channel repeater
    43.
    发明授权
    Automatic gain control and filtering techniques for use in on-channel repeater 有权
    自动增益控制和滤波技术用于通道中继器

    公开(公告)号:US07911985B2

    公开(公告)日:2011-03-22

    申请号:US12041617

    申请日:2008-03-03

    CPC classification number: H04B7/15585 H04B7/15542 H04B7/15571

    Abstract: A repeater environment is provided operative to deploy a feedback cancellation loop that is adaptively coupled with an antenna array such that a selected metric can be derived by deploying a selected filter bank having an automatic gain control operative to process the signal on a bin by bin basis and the derived metric can be applied to the antenna array and feedback cancellation loop combination to improve signal integrity and amplification. In an illustrative implementation, an exemplary repeater environment comprises, a transmitter, a receiver, an equalized feedback cancellation loop circuitry comprising a filter bank, the cancellation loop being operatively coupled to an antenna array. In the illustrative implementation, the feedback cancellation loop can receive signals as input from a cooperating antenna array and provide output signals such as a feedback leakage signal to a cooperating antenna array.

    Abstract translation: 提供中继器环境用于部署与天线阵列自适应地耦合的反馈消除环路,使得可以通过部署具有自动增益控制的所选择的滤波器组来导出所选择的度量,所述滤波器组可操作以通过分组基地处理信号 并且导出的度量可以应用于天线阵列和反馈消除环路组合以改善信号完整性和放大。 在说明性实现中,示例性中继器环境包括发射机,接收机,包括滤波器组的均衡反馈消除环路电路,该消除环路可操作地耦合到天线阵列。 在说明性实现中,反馈消除环路可以从协作天线阵列接收信号作为输入,并向协作天线阵列提供诸如反馈泄漏信号的输出信号。

    Time-slotted data packets with a preamble
    44.
    发明授权
    Time-slotted data packets with a preamble 有权
    具有前导码的时隙数据包

    公开(公告)号:US07889702B2

    公开(公告)日:2011-02-15

    申请号:US11189529

    申请日:2005-07-26

    Abstract: An illustrative embodiment of the present invention supports the transmission of data to a user on an as-needed basis over multiple allocated data channels. Data packets are transmitted in time-slots of the allocated data channels to corresponding target receivers without the need for explicitly assigning particular time-slots to a target user well in advance of transmitting any data packets in the time-slots. Instead, each data packet transmitted in a time-slot includes a header label or preamble indicating to which of multiple possible receivers a data packet is directed. The preamble also preferably includes decoding information indicating how a corresponding data payload of the data packet is to be processed for recapturing transmitted raw data.

    Abstract translation: 本发明的说明性实施例支持在多个分配的数据信道上根据需要向用户传输数据。 数据分组在分配的数据信道的时隙中被发送到相应的目标接收机,而不需要在时隙内发送任何数据分组之前向目标用户明确地分配特定的时隙。 相反,在时隙中发送的每个数据分组包括指示数据分组指向的多个可能的接收机中的哪一个的报头标签或前导码。 前导码还优选地包括指示如何处理数据分组的相应数据有效载荷以用于重新捕获发送的原始数据的解码信息。

    Power control protocol for highly variable data rate reverse link of a wireless communication system
    45.
    发明授权
    Power control protocol for highly variable data rate reverse link of a wireless communication system 失效
    用于无线通信系统高可变数据速率反向链路的功率控制协议

    公开(公告)号:US07701903B2

    公开(公告)日:2010-04-20

    申请号:US11706463

    申请日:2007-02-13

    Abstract: A technique for implementing closed loop power control in a wireless system using a modulation that requires synchronization over the radio channel, which dynamically assigns coded channels on a demand basis. The technique maintains a proper power level, even when no traffic channels are allocated, by determining a link quality metric based upon the reverse link power received. This determination is made in response to a heartbeat signal sent at a rate which is only sufficiently fast to maintain code phase lock, for example, depending upon the expected maximum rate at which the subscriber unit will travel.

    Abstract translation: 一种用于在无线系统中实现闭环功率控制的技术,其使用需要通过无线电信道进行同步的调制,其基于需求动态分配编码信道。 即使没有业务信道被分配,该技术通过基于所接收的反向链路功率确定链路质量度量来维持适当的功率电平。 该确定响应于仅以足够快的速率发送的心跳信号,以维持代码锁相,例如,取决于用户单元将要行进的预期最大速率。

    MULTIPLE-ANTENNA DEVICE HAVING AN ISOLATION ELEMENT
    46.
    发明申请
    MULTIPLE-ANTENNA DEVICE HAVING AN ISOLATION ELEMENT 有权
    具有隔离元件的多天线设备

    公开(公告)号:US20100080151A1

    公开(公告)日:2010-04-01

    申请号:US12563777

    申请日:2009-09-21

    Abstract: A multiple-antenna device is provided, comprising: a printed circuit board having a ground plane configured to provide electromagnetic isolation between a first side of the printed circuit board and a second side of the printed circuit board; a first non-conductive support member formed over the first side of the printed circuit board; a second non-conductive support member formed over the second side of the printed circuit board; a first antenna formed over the first non-conductive support member; and a second antenna formed over the second non-conductive support member, wherein the first antenna is electrically connected to a first feed point on a first portion of the printed circuit board that is not connected to the ground plane, and wherein the second antenna is electrically connected to a second feed point on a second portion of the printed circuit board that is not connected to the ground plane.

    Abstract translation: 提供一种多天线装置,包括:印刷电路板,其具有被配置为在所述印刷电路板的第一侧和所述印刷电路板的第二侧之间提供电磁隔离的接地面; 形成在所述印刷电路板的所述第一侧上的第一非导电支撑构件; 形成在印刷电路板的第二侧上的第二非导电支撑构件; 形成在所述第一非导电支撑构件上的第一天线; 以及形成在所述第二非导电支撑构件上的第二天线,其中所述第一天线电连接到所述印刷电路板的未连接到所述接地平面的第一部分上的第一馈电点,并且其中所述第二天线是 电连接到印刷电路板的未连接到接地平面的第二部分上的第二馈电点。

    Variable rate forward error correction for enabling high performance communication
    47.
    发明授权
    Variable rate forward error correction for enabling high performance communication 有权
    用于实现高性能通信的可变速率前向纠错

    公开(公告)号:US07593380B1

    公开(公告)日:2009-09-22

    申请号:US09263358

    申请日:1999-03-05

    Abstract: A protocol for optimizing the use of coded transmissions such as over wireless links. In this technique, interframes are first split into segments selected to be an optimum size according to transmission characteristics of the radio channel. Segments are assigned a position identifier and redundancy check sum. Segments are then assembled into blocks and a forward error correction algorithm is applied to the block to generate redundancy bits. The FEC block is then split up among available communication channels and forwarded to the receiver. The inverse process is applied at the receiver. Using this scheme, only segments containing erroneous data need to be resent. A large block size required for high performance forward error correction may therefore be used while at the same time minimizing latencies associated with the need to resend entire blocks when errors cannot be recovered.

    Abstract translation: 用于优化诸如通过无线链路的编码传输的使用的协议。 在这种技术中,根据无线电信道的传输特性,接口帧首先被分成被选择为最佳大小的段。 分段被分配一个位置标识符和冗余校验和。 然后,段被组合成块,并且将前向纠错算法应用于块以产生冗余位。 然后,FEC块在可用的通信信道之间分离并转发给接收机。 在接收器处应用逆过程。 使用此方案,只有包含错误数据的段才需要重新发送。 因此,可以使用高性能前向纠错所需的大块大小,同时最小化与错误无法恢复时需要重新发送整个块相关联的延迟。

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