Packet mode telecommunications method and system in which calls can be handed over from one path to another
    1.
    发明授权
    Packet mode telecommunications method and system in which calls can be handed over from one path to another 失效
    分组模式电信方法和系统,其中呼叫可以从一个路径切换到另一个路径

    公开(公告)号:US06690935B1

    公开(公告)日:2004-02-10

    申请号:US09458072

    申请日:1999-12-10

    IPC分类号: H04Q720

    CPC分类号: H04W36/02 H04B7/18541

    摘要: The invention concerns a method of transmitting non-dated digital data between a transmitter and a receiver in which the data can take at least two different paths between the transmitter and the receiver and handover from one path to another occurs during transmission. In the transmitter, packets intended for the second path are transmitted only after the last packet intended for the first path has been transmitted and in the transmitter and in the receiver packets on the first or second path are delayed in order for packets on the second path to arrive after packets on the first path. It is therefore not necessary to transmit signaling to differentiate the two paths at the receiver, which can include a single demodulator.

    摘要翻译: 本发明涉及一种在发射机和接收机之间传输未经注册的数字数据的方法,其中数据可以在发射机和接收机之间采取至少两个不同的路径,并且在传输期间从一个路径切换到另一个路径。 在发射机中,仅在针对第一路径的最后一个分组已经被发送并且在发射机中并且在第一或第二路径上的接收机中的数据包被延迟以便在第二路径上的分组时才发送用于第二路径的分组 在第一条路径上的数据包之后到达。 因此,不需要发送信令来区分接收机处的两个路径,其可以包括单个解调器。

    Method of regulating the power of a signal transmitted by a first
station to a second station in a satellite telecommunication network
    2.
    发明授权
    Method of regulating the power of a signal transmitted by a first station to a second station in a satellite telecommunication network 失效
    调节由卫星电信网络中的第一站发送到第二站的信号的功率的方法

    公开(公告)号:US5881367A

    公开(公告)日:1999-03-09

    申请号:US570470

    申请日:1995-12-11

    CPC分类号: H04W52/223 H04W52/24

    摘要: In a telecommunication network, the power of a first signal transmitted via a satellite by a first station to be received in the form of a second signal by a second station is regulated. At a given time, a value representative of a signal-to-noise ratio of the second signal is predicted for a later time, and, at an intermediate time, the power of the first signal is regulated in the first station as a function of the predicted value. The intermediate time precedes the later time by a time period substantially equal to the propagation time between the first and second stations.

    摘要翻译: 在电信网络中,调节由第二台站以第二信号形式接收的由第一站经卫星发送的第一信号的功率。 在给定时间,预测代表第二信号的信噪比的值稍后时间,并且在中间时间,第一信号的功率在第一站中被调节为第 预测值。 中间时间在较晚的时间之前比基本上等于第一和第二站之间的传播时间的时间段。

    Method of estimating the signal-to-noise ratio in a telecommunications receiver and an application of the method to controlling a transmitter
    3.
    发明授权
    Method of estimating the signal-to-noise ratio in a telecommunications receiver and an application of the method to controlling a transmitter 有权
    估计电信接收机中的信噪比的方法以及控制发射机的方法的应用

    公开(公告)号:US07042966B1

    公开(公告)日:2006-05-09

    申请号:US09786553

    申请日:2000-07-06

    IPC分类号: H03D1/04 H03K9/00

    CPC分类号: H04W52/24 H04B17/336

    摘要: A method for estimating a signal-to-noise ratio, in particular digital, received by a radio communication receiver. The method includes estimating separately the signal and the noise and filtering (36, 44) separately the signal (Eb) and the noise (N0) before carrying out the division (40) of the signal from the noise. The noise filtering is for example of the statistical type, whereas the signal filtering is of the low-pass filtering type.

    摘要翻译: 一种用于估计由无线电通信接收机接收的信噪比(特别是数字)的方法。 该方法包括在执行分割之前单独地估计信号和噪声并分别对信号(E SUB)和噪声(N SUB)进行滤波(36,44) (40)的信号来自噪声。 噪声滤波例如是统计类型,而信号滤波是低通滤波类型。

    Method of estimating the signal to noise ratio of a digital signal received by a radiocommunications receiver
    4.
    发明授权
    Method of estimating the signal to noise ratio of a digital signal received by a radiocommunications receiver 失效
    估计由无线电通信接收机接收的数字信号的信噪比的方法

    公开(公告)号:US06539214B1

    公开(公告)日:2003-03-25

    申请号:US09393458

    申请日:1999-09-10

    IPC分类号: H04B1700

    摘要: The invention concerns a method of estimating the noise power of a given digital signal (cell1) assigned a code, this signal being received by a receiver (56) simultaneously with a plurality of other digital signals assigned different codes. The noise powers are estimated for each of the received digital signals (cell1, cell2, . . . cellM) assigned codes and there is assigned, to the given signal, the mean noise power (62) which is the ratio between, on the one hand, the sum of the estimated noise powers and, on the other hand, the total number M of received codes.

    摘要翻译: 本发明涉及一种估计分配了代码的给定数字信号(单元1)的噪声功率的方法,该信号由接收机(56)同时与分配了不同代码的多个其它数字信号同时接收。噪声功率被估计为 所接收的数字信号(cell1,cell2,...,cellM)中的每一个分配了代码,并且将给定信号分配给平均噪声功率(62),该平均噪声功率一方面是 估计噪声功率,另一方面,接收到的码的总数M。

    Method of power regulation in a satellite telecommunication network with
at least two satellites in view
    7.
    发明授权
    Method of power regulation in a satellite telecommunication network with at least two satellites in view 失效
    具有至少两颗卫星的卫星电信网络中的功率调节方法

    公开(公告)号:US5828947A

    公开(公告)日:1998-10-27

    申请号:US600769

    申请日:1996-02-13

    IPC分类号: H04B7/005 H04B7/185

    CPC分类号: H04W52/42 H04B7/18543

    摘要: The invention provides a method of regulating the power of transmission between first and second stations in a multiple satellite visibility satellite telecommunication network. The method comprises the following cyclic steps: regulation, for each of said N channels, of an isolated transmit power level command signal such that when it commands the power at which the first station transmits the first isolated signal in each channel the quality level of the corresponding isolated second signal received by the second station is equal to a reference quality level, and regulation, for all of the N channels, of N combined transmit power level command signals such that when they command the levels at which the first station respectively transmits the N first combined signals on the N channels the quality level of the global signal received formed from the N combined second signals is equal to the reference quality level. Depending on whether the isolated command signal having the minimal level is such that this minimal level is less than or greater than a maximal tolerated isolated command level, the minimal level isolated command signal is selected to command the power with which the first station transmits a call signal in the corresponding channel, or the N combined command signals are selected to command the power with which the first station transmits respective combined call signals on the N channels.

    摘要翻译: 本发明提供了一种在多卫星可见卫星电信网络中调节第一和第二站之间的传输功率的方法。 该方法包括以下循环步骤:对于每个所述N个信道调节隔离的发射功率电平命令信号,使得当其命令第一站在每个信道中发射第一隔离信号的功率时, 由第二站接收的对应的隔离的第二信号等于参考质量等级,并且对于所有N个信道调整N个组合的发射功率电平命令信号,使得当它们命令第一个站分别发送 N个信道上的N个第一组合信号,由N个组合的第二信号形成的全局信号的​​质量水平等于参考质量水平。 取决于具有最小电平的隔离指令信号是否使得该最小电平小于或大于最大允许隔离指令电平,选择最小电平隔离指令信号来命令第一站发送呼叫的功率 信号,或者N个组合命令信号被选择来命令第一台站在N个信道上发送相应的组合呼叫信号的功率。