Method and apparatus for monitoring transmission quality
    11.
    发明授权
    Method and apparatus for monitoring transmission quality 失效
    监测传输质量的方法和装置

    公开(公告)号:US06967998B1

    公开(公告)日:2005-11-22

    申请号:US09438988

    申请日:1999-11-12

    CPC分类号: H04B17/327 H04B17/309

    摘要: In wireless communications, it is necessary to monitor the transmission quality of communications channels to maintain system performance and operation. The invention provides a way of measuring bit error rates in channels at the receiver, without diminishing channel throughput by inserting quality monitoring data into the signal at the transmitter.

    摘要翻译: 在无线通信中,需要监控通信信道的传输质量,保持系统的性能和运行。 本发明提供了一种在接收机中测量信道中的比特错误率的方法,而不会通过将质量监视数据插入到发射机的信号中来减少信道吞吐量。

    Method and apparatus for monitoring transmission quality
    14.
    发明授权
    Method and apparatus for monitoring transmission quality 失效
    监测传输质量的方法和装置

    公开(公告)号:US07643546B2

    公开(公告)日:2010-01-05

    申请号:US11498287

    申请日:2006-08-01

    IPC分类号: H04L1/20

    CPC分类号: H04B17/327 H04B17/309

    摘要: In wireless communications, it is necessary to monitor the transmission quality of communications channels to maintain system performance and operation. The invention provides a way of measuring bit error rates in channels at the receiver, without diminishing channel throughput by inserting quality monitoring data into the signal at the transmitter.

    摘要翻译: 在无线通信中,需要监控通信信道的传输质量,保持系统的性能和运行。 本发明提供了一种在接收机中测量信道中的比特错误率的方法,而不会通过将质量监视数据插入到发射机的信号中来减少信道吞吐量。

    Method and apparatus for monitoring transmission quality
    15.
    发明申请
    Method and apparatus for monitoring transmission quality 失效
    监测传输质量的方法和装置

    公开(公告)号:US20060268968A1

    公开(公告)日:2006-11-30

    申请号:US11498287

    申请日:2006-08-01

    IPC分类号: H04B17/00

    CPC分类号: H04B17/327 H04B17/309

    摘要: In wireless communications, it is necessary to monitor the transmission quality of communications channels to maintain system performance and operation. The invention provides a way of measuring bit error rates in channels at the receiver, without diminishing channel throughput by inserting quality monitoring data into the signal at the transmitter.

    摘要翻译: 在无线通信中,需要监控通信信道的传输质量,保持系统的性能和运行。 本发明提供了一种在接收机中测量信道中的比特错误率的方法,而不会通过将质量监视数据插入到发射机的信号中来减少信道吞吐量。

    Wireless communication system with base station beam sweeping
    17.
    发明授权
    Wireless communication system with base station beam sweeping 失效
    无线通信系统与基站波束扫描

    公开(公告)号:US06782277B1

    公开(公告)日:2004-08-24

    申请号:US09409944

    申请日:1999-09-30

    IPC分类号: H04B138

    摘要: A method and apparatus for wireless communications wherein a base station transmits a signal to sending data to a subscriber station through a signal beam that sweeps through the coverage area of the base station. User data addressed to the subscriber station is buffered until the signal beam angle of the signal beam allows efficient transmission. The base station may alter the beam sweep speed or the shape of the beam's radiation pattern over time to maximize system efficiency and capacity.

    摘要翻译: 一种用于无线通信的方法和装置,其中基站通过扫描基站的覆盖区域的信号波束发送信号以向用户站发送数据。 寻址到用户站的用户数据被缓冲,直到信号波束的信号波束角允许有效的传输。 基站可以随时间改变光束扫描速度或光束辐射图的形状,以最大化系统效率和容量。

    Channel handoff methods in wireless broadcast systems
    19.
    发明授权
    Channel handoff methods in wireless broadcast systems 有权
    无线广播系统中的信道切换方法

    公开(公告)号:US09554319B2

    公开(公告)日:2017-01-24

    申请号:US11828333

    申请日:2007-07-25

    摘要: Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel, employing information on current MLC decoding status, to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.

    摘要翻译: 描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路(FLO)信号的系统和方法。 接收机可以接收具有FLO信号的第一RF信道,并且可以监视FLO信号的其他RF信道。 在确定被监视的RF信道包括FLO信号之后,接收机可以使用关于当前MLC解码状态的信息在第一RF信道和被监控的RF信道之间切换,以便于提供FLO信号的无缝接收,其可以是超帧 在RF信道之间同步。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。

    INITIALIZATION OF TIMING RECOVERY AND DECISION-FEEDBACK EQUALIZATION IN A RECEIVER
    20.
    发明申请
    INITIALIZATION OF TIMING RECOVERY AND DECISION-FEEDBACK EQUALIZATION IN A RECEIVER 审中-公开
    定时恢复的初始化和接收方的决策反馈均衡

    公开(公告)号:US20150326382A1

    公开(公告)日:2015-11-12

    申请号:US14763798

    申请日:2013-01-28

    IPC分类号: H04L7/00 H04L25/03

    摘要: A method of initializing a receiver is performed during an initialization mode. Timing offset values for a timing recovery circuit are repeatedly selected. For each selected timing offset value, timing recovery is performed using the timing offset value and groups of weights for a decision feedback equalizer are repeatedly selected. Each selected group of weights is used to perform blind decision feedback equalization. For each selected group of weights, a metric indicating data reception quality is computed. A timing offset value and a group of weights are chosen based on the computed metrics.

    摘要翻译: 在初始化模式期间执行初始化接收机的方法。 定时恢复电路的定时偏移值被重复选择。 对于每个选择的定时偏移值,使用定时偏移值执行定时恢复,并且重复地选择用于判决反馈均衡器的权重组。 每个选择的权重组用于执行盲判决反馈均衡。 对于每个选择的权重组,计算指示数据接收质量的度量。 基于所计算的度量来选择定时偏移值和权重组。