Method and apparatus for site, frequency, and backhaul planning for access points
    11.
    发明授权
    Method and apparatus for site, frequency, and backhaul planning for access points 有权
    接入点的现场,频率和回程规划的方法和装置

    公开(公告)号:US07315743B1

    公开(公告)日:2008-01-01

    申请号:US11107465

    申请日:2005-04-15

    CPC classification number: H04W16/18 H04W16/02

    Abstract: Site, frequency, and backhaul planning for access points is disclosed where the placement of coverage access points in an urban area requires taking a section of a grid of size 2K by 2K blocks where K is a range of a coverage access point and placing a first coverage access point at a first intersection within the grid wherein the first intersection is defined by a first street and a second street. Removing the first street and the second street from the list and placing a second coverage access point at a second intersection considering the streets in the list. Iterating through the streets in the list until each street has a coverage access point. Further disclosed is frequency planning for the site and backhaul planning for the site.

    Abstract translation: 公开了接入点的站点,频率和回程规划,其中在城市区域中覆盖接入点的放置需要采取大小2K×2K个块的网格的部分,其中K是覆盖接入点的范围,并且放置第一 覆盖接入点在网格内的第一交叉点处,其中第一交叉点由第一街道和第二街道限定。 从列表中删除第一条街道和第二条街道,并在列表中考虑街道的第二个路口放置第二个覆盖接入点。 通过列表中的街道迭代,直到每个街道都有一个覆盖接入点。 进一步披露的是现场的频率规划和站点的回程计划。

    Automatic gain control with digital filtering for radio-frequency communications systems
    12.
    发明授权
    Automatic gain control with digital filtering for radio-frequency communications systems 有权
    用于射频通信系统的数字滤波的自动增益控制

    公开(公告)号:US06985099B1

    公开(公告)日:2006-01-10

    申请号:US09693799

    申请日:2000-10-20

    CPC classification number: H03M1/185

    Abstract: An automatic gain control includes a digital lowpass filter for filtering a series of digital samples generated by an analog-to-digital converter to generate a lowpass filtered digital sample series; a power averager coupled to the digital lowpass filter for calculating an average power of the lowpass filtered digital sample series; and a lookup table coupled to the power averager for setting a selectable gain of an amplifier coupled to the analog-to-digital converter as a function of the average power.

    Abstract translation: 自动增益控制包括数字低通滤波器,用于对由模数转换器产生的一系列数字采样进行滤波以产生低通滤波的数字采样序列; 耦合到所述数字低通滤波器的功率平均器,用于计算所述低通滤波数字样本序列的平均功率; 以及耦合到所述功率平均器的查找表,用于设置耦合到所述模数转换器的放大器的可选增益作为所述平均功率的函数。

    Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards
    14.
    发明授权
    Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards 有权
    在根据IS-95B和IS-95C标准操作的通信系统中用于软切换通信的方法和装置

    公开(公告)号:US06768908B1

    公开(公告)日:2004-07-27

    申请号:US09545125

    申请日:2000-04-07

    CPC classification number: H04W36/18 H04W36/0055 H04W36/14 H04W36/30

    Abstract: A method and apparatus provide for soft handoff operation of at least a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station (104) initially receives the first signal, detects presence of a pilot signal, measures pilot signal strength, transmits a pilot strength measurement message, fails to receive a handoff direction message after transmitting the pilot strength measurement message, searches for detecting presence of a broadcast control channel associated with the type IS-95C cell sites, measures a carrier to interference ratio of the broadcast control channel, compares the carrier to interference ratio to a threshold, if the carrier to interference ratio is above the threshold, initiates a second communication according to IS-95C standard, thus, allowing initiating a soft handoff operation by allowing the base sites to transmit information according to the IS-95B and IS-95C standards respectively via the first and second signals. MS 104 combines the first and second signals to take advantage of the soft hand-off operation.

    Abstract translation: 一种方法和装置提供至少根据第一通信标准(IS-95B)发送的第一信号和根据第二通信标准(IS-95C)传输的第二信号)的软切换操作。 移动站(104)首先接收到第一信号,检测导频信号的存在,测量导频信号强度,发送导频强度测量消息,在发送导频强度测量消息之后不能接收到切换方向消息,搜索检测到存在 与类型IS-95C小区站点相关联的广播控制信道,测量广播控制信道的载波干扰比,将载波与干扰比相比较,如果载波干扰比高于阈值,则启动一个 根据IS-95C标准的第二通信,从而允许基站通过第一和第二信号分别根据IS-95B和IS-95C标准传输信息来启动软切换操作。 MS 104组合第一和第二信号以利用软切换操作。

    Method and apparatus for maximal-ratio combining of received frame data
    15.
    发明授权
    Method and apparatus for maximal-ratio combining of received frame data 有权
    接收帧数据最大比组合的方法和装置

    公开(公告)号:US06661853B1

    公开(公告)日:2003-12-09

    申请号:US09524309

    申请日:2000-03-14

    CPC classification number: H04B7/0857 H04B7/022 H04L1/0054

    Abstract: A method and apparatus for maximal-ratio combining of received frame data is provided. This technique increases the reliability of a communication network that includes multiple independent receivers. For example, when multiple independent receivers are not in agreement as to the received frame data (501, 502, 503), an embodiment of the invention provides a higher likelihood of correctly identifying the received frame data (501, 502, 503). A technique for determining a signal-to-noise ratio from a metric signal (504) derived from a decoder (701) in a receiver is provided. The signal-to-noise ratio may be characterized according to a polynomial estimate or stored in lookup table. The signal-to-noise ratio is used to apply a weighting (805) to “hard decision” data from the receiver to yield a weighted value (806). The weighted value is combined with weighted values from other receivers. The combined weighted values are applied to a data slicer (414) to yield received data (807).

    Abstract translation: 提供了一种用于接收帧数据的最大比组合的方法和装置。 这种技术增加了包括多个独立接收机的通信网络的可靠性。 例如,当多个独立的接收机对于接收到的帧数据(501,502,503)不一致时,本发明的一个实施例提供了更好地正确地识别接收的帧数据(501,502,503)的可能性。 提供了一种用于从接收机中的解码器(701)导出的度量信号(504)确定信噪比的技术。 可以根据多项式估计来表征信噪比,或存储在查找表中。 信噪比用于将来自接收机的加权(805)应用于“硬判决”数据以产生加权值(806)。 加权值与其他接收机的加权值组合。 将组合的加权值应用于数据限幅器(414)以产生接收数据(807)。

    Method and apparatus for implementing PN masks for a truncated M-sequence
    16.
    发明授权
    Method and apparatus for implementing PN masks for a truncated M-sequence 有权
    用于实现截断的M序列的PN掩模的方法和装置

    公开(公告)号:US06246676B1

    公开(公告)日:2001-06-12

    申请号:US09459688

    申请日:1999-12-13

    Abstract: Method and apparatus to provide a pseudo random noise (PN) sequence having a particular code phase offset for use in a radio in a Code Division Multiple Access (CDMA) radio system (100). In one embodiment, a first mask (320) is applied to shift a reference PN sequence to the assigned PN code phase (416). Upon reaching the end of the reference PN sequence, the initial state is reloaded (420) into the PN generator state register to reset the state value to its initial value, thereby producing a cyclical sequence. In a second embodiment, a first mask (622) and a second mask (624) are applied to the reference sequence produced by the PN generator state registers (620) to produce the appropriate portions of the output sequence.

    Abstract translation: 提供具有用于码分多址(CDMA)无线电系统(100)中的无线电中的特定码相位偏移的伪随机噪声(PN)序列的方法和装置。 在一个实施例中,施加第一掩模(320)以将参考PN序列移位到所分配的PN码相位(416)。 在到达参考PN序列的末尾时,将初始状态重新加载(420)到PN发生器状态寄存器中,以将状态值重置为其初始值,从而产生循环序列。 在第二实施例中,将第一掩模(622)和第二掩模(624)应用于由PN发生器状态寄存器(620)产生的参考序列,以产生输出序列的适当部分。

    INDOOR NAVIGATION TO KNOWN POINTS OF INTEREST
    19.
    发明申请
    INDOOR NAVIGATION TO KNOWN POINTS OF INTEREST 有权
    室内导航到知名的兴趣点

    公开(公告)号:US20150094094A1

    公开(公告)日:2015-04-02

    申请号:US14039945

    申请日:2013-09-27

    CPC classification number: G01C21/206 H04W4/02 H04W4/029 H04W4/043

    Abstract: Disclosed in some examples are methods, systems, and machine readable mediums that provide location based services such as navigation in an indoor space by utilizing a network of specially configured locator nodes (LNs) and the identified line of sight (LOS) relationships between the LNs. The LOS relationships may be automatically learned by the LNs.

    Abstract translation: 在一些示例中公开的是提供基于位置的服务的方法,系统和机器可读介质,例如通过利用特定配置的定位器节点(LN)的网络和在LN之间的所识别的视线(LOS)关系在室内空间中的导航 。 LOS关系可以由LN自动学习。

    Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards
    20.
    发明授权
    Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards 有权
    在根据IS-95B和IS-95C标准操作的通信系统中用于软切换通信的方法和装置

    公开(公告)号:US07489942B2

    公开(公告)日:2009-02-10

    申请号:US10772030

    申请日:2004-02-04

    CPC classification number: H04W36/18 H04W36/0055 H04W36/14 H04W36/30

    Abstract: A method and apparatus provide for soft handoff operation of at least a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station (104) initially receives the first signal, detects presence of a pilot signal, measures pilot signal strength, transmits a pilot strength measurement message, fails to receive a handoff direction message after transmitting the pilot strength measurement message, searches for detecting presence of a broadcast control channel associated with the type IS-95C cell sites, measures a carrier to interference ratio of the broadcast control channel, compares the carrier to interference ratio to a threshold, if the carrier to interference ratio is above the threshold, initiates a second communication according to IS-95C standard, thus, allowing initiating a soft handoff operation by allowing the base sites to transmit information according to the IS-95B and IS-95C standards respectively via the first and second signals. MS 104 combines the first and second signals to take advantage of the soft hand-off operation.

    Abstract translation: 一种方法和装置提供至少根据第一通信标准(IS-95B)发送的第一信号和根据第二通信标准(IS-95C)发送的第二信号的软切换操作。 移动站(104)首先接收到第一信号,检测导频信号的存在,测量导频信号强度,发送导频强度测量消息,在发送导频强度测量消息之后不能接收到切换方向消息,搜索检测到存在 与类型IS-95C小区站点相关联的广播控制信道,测量广播控制信道的载波干扰比,将载波与干扰比相比较,如果载波干扰比高于阈值,则启动一个 根据IS-95C标准的第二通信,从而允许基站通过第一和第二信号分别根据IS-95B和IS-95C标准传输信息来启动软切换操作。 MS 104组合第一和第二信号以利用软切换操作。

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