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公开(公告)号：US06944188B2
公开(公告)日：2005-09-13
申请号：US09790443
申请日：2001-02-21
申请人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Ell Arviv
发明人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Ell Arviv
摘要： Apparatus, system and method for synchronizing one or more clocks across a communication link. A slave clock may be synchronized to a master clock by means of a synchronization signal sent from the master to the slave clock side of the link. The synchronization signal may be an expected signal pattern sent at intervals expected by the slave side. The slave clock may correlate received signals with a representation of the expected synchronization signal to produce a correlation sample sequence at a first sample rate which is related as n times the slave clock rate. The synchronization signal receipt time indicated by the correlation sample sequence may be refined by interpolating the correlation sample sequence around a best correlation sample to locate a best interpolation at an interpolation resolution smaller than the sample resolution. The best interpolation may in turn be further refined by estimating between interpolator outputs adjacent to the best interpolation output. The synchronization signal receipt time thus determined is compared to the expected time based upon the slave clock, which is adjusted until the times match. After initialization, all slave clock errors are preferably accumulated to prevent long-term slip between the slave and master clocks. Formerly independent master and slave clocks synchronized across the communication link constitute a noncommon clock which may be compared on each side of the link to secondary independent clocks, and the secondary independent clocks may then be separately synchronized by adjusting one to have the same difference from its local noncommon clock as the secondary clock on the other side of the link has from its local noncommon clock.
摘要翻译： 用于在通信链路上同步一个或多个时钟的装置，系统和方法。 从时钟可以通过从主机发送到链路的从时钟侧的同步信号与主时钟同步。 同步信号可以是以从机侧预期的间隔发送的预期信号模式。 从时钟可以将接收的信号与预期同步信号的表示相关，以产生与从时钟速率的n倍相关的第一采样率的相关采样序列。 通过相关采样序列指示的同步信号接收时间可以通过围绕最佳相关样本内插相关采样序列来精细化，以便以小于样本分辨率的插值分辨率来定位最佳内插。 可以通过在与最佳内插输出相邻的内插器输出之间进行估计来进一步改进最佳内插。 将这样确定的同步信号接收时间与基于从时钟的预期时间进行比较，该从时钟被调整直到时间匹配。 在初始化之后，优选地累积所有从时钟错误以防止从机和主时钟之间的长期滑动。 通过通信链路同步的以前独立的主，从时钟构成了一个非常见的时钟，可以在链路的每一侧与次级独立时钟进行比较，然后可以通过调整二次独立时钟来与其独立时钟相同的差异 本地非通用时钟作为链路另一侧的辅助时钟源自其本地非通用时钟。
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公开(公告)号：US08199779B2
公开(公告)日：2012-06-12
申请号：US13021627
申请日：2011-02-04
申请人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
发明人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
摘要： Apparatus, system and method for synchronizing one or more clocks across a communication link. A slave clock may be synchronized to a master clock by means of a synchronization signal sent from the master to the slave clock side of the link. The synchronization signal may be an expected signal pattern sent at intervals expected by the slave side. The slave clock may correlate received signals with a representation of the expected synchronization signal to produce a correlation sample sequence at a first sample rate which is related as n times the slave clock rate. The synchronization signal receipt time indicated by the correlation sample sequence may be refined by interpolating the correlation sample sequence around a best correlation sample to locate a best interpolation at an interpolation resolution smaller than the sample resolution. The best interpolation may in turn be further refined by estimating between interpolator outputs adjacent to the best interpolation output. The synchronization signal receipt time thus determined is compared to the expected time based upon the slave clock, which is adjusted until the times match. After initialization, all slave clock errors are preferably accumulated to prevent long-term slip between the slave and master clocks. Formerly independent master and slave clocks synchronized across the communication link constitute a noncommon clock which may be compared on each side of the link to secondary independent clocks, and the secondary independent clocks may then be separately synchronized by adjusting one to have the same difference from its local noncommon clock as the secondary clock on the other side of the link has from its local noncommon clock.
摘要翻译： 用于在通信链路上同步一个或多个时钟的装置，系统和方法。 从时钟可以通过从主机发送到链路的从时钟侧的同步信号与主时钟同步。 同步信号可以是以从机侧预期的间隔发送的预期信号模式。 从时钟可以将接收的信号与预期同步信号的表示相关，以产生与从时钟速率的n倍相关的第一采样率的相关采样序列。 通过相关采样序列指示的同步信号接收时间可以通过围绕最佳相关样本内插相关采样序列来精细化，以便以小于样本分辨率的插值分辨率定位最佳内插。 可以通过在与最佳内插输出相邻的内插器输出之间进行估计来进一步改进最佳内插。 将这样确定的同步信号接收时间与基于从时钟的预期时间进行比较，该从时钟被调整直到时间匹配。 在初始化之后，优选地累积所有从时钟错误以防止从机和主时钟之间的长期滑动。 通过通信链路同步的以前独立的主，从时钟构成了一个非常见的时钟，可以在链路的每一侧与次级独立时钟进行比较，然后可以通过调整二次独立时钟来与其独立时钟相同的差异 本地非通用时钟作为链路另一侧的辅助时钟源自其本地非通用时钟。
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公开(公告)号：US07583705B2
公开(公告)日：2009-09-01
申请号：US11170391
申请日：2005-06-29
申请人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
发明人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
摘要： One or more clocks are synchronized across a communication link using a synchronization signal sent from a master to a slave clock. The synchronization signal may be an expected signal pattern sent at intervals expected by the slave. The slave clock may correlate received signals with a representation of the expected synchronization signal to produce a correlation sample sequence at a first sample rate. The synchronization signal receipt time is compared to the expected time and the slave clock is adjusted until the times match. Master and slave clocks synchronized across the communication link constitute a noncommon clock which may be compared on each side of the link to secondary independent clocks. The secondary independent clocks may be separately synchronized by adjusting one to have the same difference from its local noncommon clock as the secondary clock on the other side of the link has from its local noncommon clock.
摘要翻译： 使用从主机发送到从时钟的同步信号，通过通信链路同步一个或多个时钟。 同步信号可以是以从站所预期的间隔发送的预期信号模式。 从时钟可以将接收的信号与预期同步信号的表示相关，以产生第一采样率的相关采样序列。 将同步信号接收时间与预期时间进行比较，并调整从时钟直到时间匹配。 通过通信链路同步的主和从时钟构成了一个非常见的时钟，可以在链路的每一侧与次级独立时钟进行比较。 辅助独立时钟可以通过调整一个来独立同步，以使其与本地非常见时钟具有相同的差异，因为链路另一侧的辅助时钟与其本地非常见时钟相同。
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公开(公告)号：US20110122981A1
公开(公告)日：2011-05-26
申请号：US13021627
申请日：2011-02-04
申请人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
发明人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
IPC分类号： H04L7/00
摘要： Apparatus, system and method for synchronizing one or more clocks across a communication link. A slave clock may be synchronized to a master clock by means of a synchronization signal sent from the master to the slave clock side of the link. The synchronization signal may be an expected signal pattern sent at intervals expected by the slave side. The slave clock may correlate received signals with a representation of the expected synchronization signal to produce a correlation sample sequence at a first sample rate which is related as n times the slave clock rate. The synchronization signal receipt time indicated by the correlation sample sequence may be refined by interpolating the correlation sample sequence around a best correlation sample to locate a best interpolation at an interpolation resolution smaller than the sample resolution. The best interpolation may in turn be further refined by estimating between interpolator outputs adjacent to the best interpolation output. The synchronization signal receipt time thus determined is compared to the expected time based upon the slave clock, which is adjusted until the times match. After initialization, all slave clock errors are preferably accumulated to prevent long-term slip between the slave and master clocks. Formerly independent master and slave clocks synchronized across the communication link constitute a noncommon clock which may be compared on each side of the link to secondary independent clocks, and the secondary independent clocks may then be separately synchronized by adjusting one to have the same difference from its local noncommon clock as the secondary clock on the other side of the link has from its local noncommon clock.
摘要翻译： 用于在通信链路上同步一个或多个时钟的装置，系统和方法。 从时钟可以通过从主机发送到链路的从时钟侧的同步信号与主时钟同步。 同步信号可以是以从机侧预期的间隔发送的预期信号模式。 从时钟可以将接收的信号与预期同步信号的表示相关，以产生与从时钟速率的n倍相关的第一采样率的相关采样序列。 通过相关采样序列指示的同步信号接收时间可以通过围绕最佳相关样本内插相关采样序列来精细化，以便以小于样本分辨率的插值分辨率定位最佳内插。 可以通过在与最佳内插输出相邻的内插器输出之间进行估计来进一步改进最佳内插。 将这样确定的同步信号接收时间与基于从时钟的预期时间进行比较，该从时钟被调整直到时间匹配。 在初始化之后，优选地累积所有从时钟错误以防止从机和主时钟之间的长期滑动。 通过通信链路同步的以前独立的主，从时钟构成了一个非常见的时钟，可以在链路的每一侧与次级独立时钟进行比较，然后可以通过调整二次独立时钟来与其独立时钟相同的差异 本地非通用时钟作为链路另一侧的辅助时钟源自其本地非通用时钟。
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公开(公告)号：US07907640B2
公开(公告)日：2011-03-15
申请号：US12508431
申请日：2009-07-23
申请人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
发明人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
摘要： A slave clock may be synchronized to a master clock by means of a synchronization signal sent from the master to the slave clock side of the link. The synchronization signal may be an expected signal pattern sent at intervals expected by the slave side. The slave clock may correlate received signals with a representation of the expected synchronization signal to produce a correlation sample sequence at a first sample rate which is related as n times the slave clock rate. A best interpolation may in turn be further refined by estimating between interpolator outputs adjacent to the best interpolation output. The synchronization signal receipt time thus determined is compared to the expected time based upon the slave clock, which is adjusted until the times match. The best interpolation may in turn be further refined by estimating between interpolator outputs adjacent to the best interpolation output.
摘要翻译： 从时钟可以通过从主机发送到链路的从时钟侧的同步信号与主时钟同步。 同步信号可以是以从机侧预期的间隔发送的预期信号模式。 从时钟可以将接收的信号与预期同步信号的表示相关，以产生与从时钟速率的n倍相关的第一采样率的相关采样序列。 可以通过在与最佳内插输出相邻的内插器输出之间进行估计来进一步改进最佳内插。 将这样确定的同步信号接收时间与基于从时钟的预期时间进行比较，该从时钟被调整直到时间匹配。 可以通过在与最佳内插输出相邻的内插器输出之间进行估计来进一步改进最佳内插。
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公开(公告)号：US20090279652A1
公开(公告)日：2009-11-12
申请号：US12508431
申请日：2009-07-23
申请人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
发明人： Pranesh Sinha , Sharon Akler , Yair Bourlas , Timothy Leo Gallagher , Sheldon L. Gilbert , Stephen C. Pollmann , Frederick W. Price , Blaine C. Readler , John Wiss , Eli Arviv
IPC分类号： H04L7/00
摘要： Apparatus, system and method for synchronizing one or more clocks across a communication link. A slave clock may be synchronized to a master clock by means of a synchronization signal sent from the master to the slave clock side of the link. The synchronization signal may be an expected signal pattern sent at intervals expected by the slave side. The slave clock may correlate received signals with a representation of the expected synchronization signal to produce a correlation sample sequence at a first sample rate which is related as n times the slave clock rate. The synchronization signal receipt time indicated by the correlation sample sequence may be refined by interpolating the correlation sample sequence around a best correlation sample to locate a best interpolation at an interpolation resolution smaller than the sample resolution. The best interpolation may in turn be further refined by estimating between interpolator outputs adjacent to the best interpolation output. The synchronization signal receipt time thus determined is compared to the expected time based upon the slave clock, which is adjusted until the times match. After initialization, all slave clock errors are preferably accumulated to prevent long-term slip between the slave and master clocks. Formerly independent master and slave clocks synchronized across the communication link constitute a noncommon clock which may be compared on each side of the link to secondary independent clocks, and the secondary independent clocks may then be separately synchronized by adjusting one to have the same difference from its local noncommon clock as the secondary clock on the other side of the link has from its local noncommon clock.
摘要翻译： 用于在通信链路上同步一个或多个时钟的装置，系统和方法。 从时钟可以通过从主机发送到链路的从时钟侧的同步信号与主时钟同步。 同步信号可以是以从机侧预期的间隔发送的预期信号模式。 从时钟可以将接收的信号与预期同步信号的表示相关，以产生与从时钟速率的n倍相关的第一采样率的相关采样序列。 通过相关采样序列指示的同步信号接收时间可以通过围绕最佳相关样本内插相关采样序列来精细化，以便以小于样本分辨率的插值分辨率定位最佳内插。 可以通过在与最佳内插输出相邻的内插器输出之间进行估计来进一步改进最佳内插。 将这样确定的同步信号接收时间与基于从时钟的预期时间进行比较，该从时钟被调整直到时间匹配。 在初始化之后，优选地累积所有从时钟错误以防止从机和主时钟之间的长期滑动。 通过通信链路同步的以前独立的主，从时钟构成了一个非常见的时钟，可以在链路的每一侧与次级独立时钟进行比较，然后可以通过调整二次独立时钟来与其独立时钟相同的差异 本地非通用时钟作为链路另一侧的辅助时钟源自其本地非通用时钟。
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7.发明授权Systems and methods for implementing double wide channels in a communication system 有权在通信系统中实现双宽通道的系统和方法公开(公告)号：US07672268B2
公开(公告)日：2010-03-02
申请号：US11156045
申请日：2005-06-17
申请人： Kenneth Stanwood , Timothy Leo Gallagher , Sheldon L. Gilbert , Yair Bourlas , Charles Bergan , Sam A. Liu , Darren Smith
发明人： Kenneth Stanwood , Timothy Leo Gallagher , Sheldon L. Gilbert , Yair Bourlas , Charles Bergan , Sam A. Liu , Darren Smith
CPC分类号： H04W28/20
摘要： In a system utilizing double wide communication channels, if a particular CPE requires a sustained rate that is greater than the bandwidth of a single channel, data to and from the CPE may be split across Channels A and B. Also, when the bandwidth requirements of a particular CPE peaks at a data rate greater than the capacity of a single channel, the CPE's data may be split across the two channels. In one embodiment, a single-wide CPE may communicate with the base station without knowing that it is communicating with a base station configured to communicate using a double wide channel.
摘要翻译： 在使用双宽通信信道的系统中，如果特定的CPE需要比单个信道的带宽更长的持续速率，那么到CPE之间的数据可能会跨越信道A和B分裂。另外，当带宽要求 特定的CPE以大于单个信道的容量的数据速率峰值，CPE的数据可以跨越两个信道被分离。 在一个实施例中，单宽CPE可以与基站通信，而不知道它正在与被配置为使用双宽信道通信的基站通信。
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公开(公告)号：US06577863B2
公开(公告)日：2003-06-10
申请号：US09788284
申请日：2001-02-15
IPC分类号： H04Q720
摘要： A system that provides a redundant wireless broadband connection between a base station and customer sites is described. The system includes a redundancy system, for example, a standby modem interface card and a plurality of standby outdoor units that are incorporated into the base station. Upon receiving a fault message from a base station component, the redundancy system performs fault correlation to determine whether the fault is indicative of a system level fault. The system also determines whether the fault message affects system operation and performs a switch over based on the determination.
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9.发明授权公开(公告)号：US08213359B2
公开(公告)日：2012-07-03
申请号：US12414363
申请日：2009-03-30
IPC分类号： H04W4/00
CPC分类号： H04W72/1252 , H04W28/22 , H04W72/1257 , H04W76/10 , H04W76/30
摘要： The invention relates to communication systems and to systems and methods for implementing adaptive call admission control (CAC) in such systems. Adaptive call admission control can determine what CPE to base station calls (connections) are allowed at any given time. CAC, coupled with precedence, can further determine what connections are suspended if less bandwidth is available than is currently committed. Multiple techniques are disclosed to select connections for suspension. These techniques include suspending enough connections through the affected CPE until there is enough bandwidth to meet the remaining commitment, randomly (or in a round robin fashion) choosing connection to suspend from the entire set of connection, and using precedence priority levels.
摘要翻译： 本发明涉及通信系统以及用于在这样的系统中实现自适应呼叫许可控制（CAC）的系统和方法。 自适应呼叫准入控制可以确定在任何给定时间允许基站呼叫（连接）的CPE。 CAC，加上优先级，可以进一步确定如果可用带宽比当前提交的带宽少，连接被挂起。 公开了多种技术来选择用于暂停的连接。 这些技术包括通过受影响的CPE暂停足够的连接，直到有足够的带宽来满足剩余的承诺，从而选择连接从整个连接集中挂起并使用优先级优先级的随机（或循环方式）。
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10.发明申请公开(公告)号：US20090185532A1
公开(公告)日：2009-07-23
申请号：US12414363
申请日：2009-03-30
IPC分类号： H04W4/00
CPC分类号： H04W72/1252 , H04W28/22 , H04W72/1257 , H04W76/10 , H04W76/30
摘要： The invention relates to communication systems and to systems and methods for implementing adaptive call admission control (CAC) in such systems. Adaptive call admission control can determine what CPE to base station calls (connections) are allowed at any given time. CAC, coupled with precedence, can further determine what connections are suspended if less bandwidth is available than is currently committed. Multiple techniques are disclosed to select connections for suspension. These techniques include suspending enough connections through the affected CPE until there is enough bandwidth to meet the remaining commitment, randomly (or in a round robin fashion) choosing connection to suspend from the entire set of connection, and using precedence priority levels.
摘要翻译： 本发明涉及通信系统以及用于在这样的系统中实现自适应呼叫许可控制（CAC）的系统和方法。 自适应呼叫准入控制可以确定在任何给定时间允许基站呼叫（连接）的CPE。 CAC，加上优先级，可以进一步确定如果可用带宽比当前提交的带宽少，连接被挂起。 公开了多种技术来选择用于暂停的连接。 这些技术包括通过受影响的CPE暂停足够的连接，直到有足够的带宽来满足剩余的承诺，从而选择连接从整个连接集中挂起并使用优先级优先级的随机（或循环方式）。
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