Method and apparatus for site, frequency, and backhaul planning for access points
    1.
    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

    IPC分类号: H04Q7/20

    CPC分类号: H04W16/18 H04W16/02

    摘要: 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.

    摘要翻译: 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。

    System and method to dynamically adapt a CCA threshold
    2.
    发明申请
    System and method to dynamically adapt a CCA threshold 审中-公开
    动态调整CCA阈值的系统和方法

    公开(公告)号:US20070060155A1

    公开(公告)日:2007-03-15

    申请号:US11216625

    申请日:2005-08-31

    IPC分类号: H04Q7/20

    摘要: The present invention relates to a method, device and system for dynamically adapting a clear channel assessment threshold of a wireless communications channel by determining the status of a busy channel indicator for at least a first parameter (105) and dynamically changing the clear channel assessment threshold based on the status of the busy channel indicator (110).

    摘要翻译: 本发明涉及一种用于通过确定至少第一参数(105)的忙信道指示符的状态来动态地改变无线通信信道的清除信道评估阈值的方法,设备和系统,并动态地改变清除信道评估阈值 基于忙信道指示符(110)的状态。

    METHODS AND APPARATUS FOR ASSET TRACKING
    3.
    发明申请
    METHODS AND APPARATUS FOR ASSET TRACKING 审中-公开
    资产跟踪的方法和装置

    公开(公告)号:US20070046459A1

    公开(公告)日:2007-03-01

    申请号:US11458507

    申请日:2006-07-19

    IPC分类号: G08B1/08

    CPC分类号: G06Q10/08

    摘要: A method for enabling asset tracking that includes the steps of: receiving (910) a first excitation signal at a first power level using a first frequency band; and (920) upon determining that a first set of parameters is satisfied, awakening from an inactive mode to an active mode, transmitting data at a second power level that is greater than the first power level using a second frequency band that is different from the first frequency band, and returning to the inactive mode, wherein determining that the first set of parameters is satisfied comprises at least determining that the first excitation signal corresponds to a first wake-up circuit.

    摘要翻译: 一种用于启用资产跟踪的方法,包括以下步骤:使用第一频带接收(910)处于第一功率电平的第一激励信号; 和(920),在确定第一组参数被满足时,从非活动模式唤醒到活动模式,使用不同于第一功率电平的第二频带以大于第一功率电平的第二功率电平发送数据 第一频带,并且返回到不活动模式,其中确定所述第一参数集合被满足包括至少确定所述第一激励信号对应于第一唤醒电路。

    DYNAMICALLY CONTROLLING ACCESS METHODS IN A WIRELESS NETWORK
    4.
    发明申请
    DYNAMICALLY CONTROLLING ACCESS METHODS IN A WIRELESS NETWORK 审中-公开
    在无线网络中动态地控制接入方式

    公开(公告)号:US20060239292A1

    公开(公告)日:2006-10-26

    申请号:US11380046

    申请日:2006-04-25

    CPC分类号: H04W74/02

    摘要: A system (100) that includes a device (120), such as an access point, which is configured for: obtaining (210) a status of a busy channel indicator; and dynamically selecting (220) an access scheme within a contention free period interval based on the status of the busy channel indicator.

    摘要翻译: 一种系统(100),其包括诸如接入点的设备(120),其被配置为:获得(210)忙信道指示符的状态; 以及基于所述繁忙信道指示符的状态来动态地选择(220)无争用周期间隔内的接入方案。

    Method and apparatus for facilitating a fast handoff in a wireless metropolitan area network
    5.
    发明授权
    Method and apparatus for facilitating a fast handoff in a wireless metropolitan area network 有权
    用于促进无线城域网快速切换的方法和装置

    公开(公告)号:US08787300B2

    公开(公告)日:2014-07-22

    申请号:US11422187

    申请日:2006-06-05

    IPC分类号: H04W4/00 H04W36/00 H04W76/02

    CPC分类号: H04W36/0055 H04W76/10

    摘要: A method and apparatus for facilitating a fast handoff for subscribers in a Wireless Metropolitan Area Network (WMAN) by establishing a hard association with a first entity by sending a hard association request to the first entity and receiving a hard association response in response to the hard association request and establishing a pending association with a second entity by sending a pending association request to a second entity and receiving a pending association response from the second entity. In one embodiment, the pending association with the second entity may be converted to a hard association.

    摘要翻译: 一种用于通过向第一实体发送硬关联请求并且响应于硬而接收硬关联响应而通过与第一实体建立硬关联来促进无线城域网(WMAN)中的订户的快速切换的方法和装置 关联请求并通过向第二实体发送待决关联请求并从第二实体接收待决关联响应来建立与第二实体的挂起关联。 在一个实施例中,与第二实体的挂起关联可以被转换为硬关联。

    Multiple configuration communication apparatus
    6.
    发明申请
    Multiple configuration communication apparatus 有权
    多配置通信装置

    公开(公告)号:US20070140161A1

    公开(公告)日:2007-06-21

    申请号:US11303492

    申请日:2005-12-16

    IPC分类号: H04Q7/00

    CPC分类号: H04W88/06

    摘要: Multiple-configuration communication apparatus includes: a communication device (130) simultaneously maintaining at least a first and a second channel; a storage device (114, 116, 118) storing a plurality of communication configurations; and a configuration controller (120) determining a first time frame and during the first time frame, selecting a first communication configuration of the plurality of communication configurations and controlling the communication device to configure itself to the first communication configuration to at least one of transmit and receive information over the first channel, and determining a second time frame that is different from the first time frame and during the second time frame, selecting a second communication configuration of the plurality of communication configurations, and controlling the communication device to configure itself to the second communication configuration to at least one of transmit and receive information over the second channel.

    摘要翻译: 多配置通信装置包括:通信设备(130)同时保持至少第一和第二信道; 存储多个通信配置的存储设备(114,116,118); 以及配置控制器(120),其确定第一时间帧,并且在所述第一时间帧期间,选择所述多个通信配置的第一通信配置,并且控制所述通信设备将其自身配置为所述第一通信配置为发送和 通过第一信道接收信息,并且确定与第一时间帧不同的第二时间帧,并且在第二时间帧期间,选择多个通信配置的第二通信配置,并且控制通信设备将其自身配置为 第二通信配置到第二信道上的发送和接收信息中的至少一个。

    Method for dynamic frequency selection
    7.
    发明授权
    Method for dynamic frequency selection 有权
    动态频率选择方法

    公开(公告)号:US06914876B2

    公开(公告)日:2005-07-05

    申请号:US10320054

    申请日:2002-12-16

    IPC分类号: H04L12/28 H04J11/00

    摘要: A communication band is divided into a plurality of allocation channels (202, 204, 206, 208). At least one allocation channel (204) is transferred to a transform domain. The behavior of the at least one allocation channel is monitored in the transform domain in order to derive a set of statistics. The set of statistics are used to determine a channel category for the at least one allocation channel.

    摘要翻译: 通信频带被分成多个分配信道(202,204,206,208)。 至少一个分配信道(204)被传送到变换域。 在变换域中监视至少一个分配信道的行为,以得出一组统计信息。 统计数据集用于确定至少一个分配信道的信道类别。

    Method and apparatus for adaptive signaling in a QAM communication system
    8.
    发明授权
    Method and apparatus for adaptive signaling in a QAM communication system 有权
    QAM通信系统中自适应信令的方法和装置

    公开(公告)号:US06904097B2

    公开(公告)日:2005-06-07

    申请号:US09871833

    申请日:2001-06-01

    摘要: A method and apparatus to adaptively puncture bits within QAM modulated data symbols transmitted in a communication system in order to effect a signaling channel. The method and apparatus utilize inherent characteristics of a particular mapping scheme for the QAM constellation to selectively puncture particular bits within a data symbol with signaling information and predetermined binary values to selectively increase the log-likelihood ratio gains of those particular bits punctured with the signaling information. The log-likelihood ratios are used to obtain the signaling information and, thus, increasing the gain of the log-likelihood ratios affords greater reliability for the signaling information without increasing the required system resources.

    摘要翻译: 一种在通信系统中自适应地穿透QAM调制数据符号内的比特以便实现信令信道的方法和装置。 该方法和装置利用QAM星座图的特定映射方案的固有特性来选择性地使用信令信息和预定二进制值对数据符号内的特定比特进行穿孔,以选择性地增加用信令信息打破的那些特定比特的对数似然比增益 。 对数似然比用于获得信令信息,因此增加对数似然比的增益可以提供信令信息的更高的可靠性,而不增加所需的系统资源。

    Method and apparatus for calculating bit log-likelihood ratios for QAM signals
    9.
    发明授权
    Method and apparatus for calculating bit log-likelihood ratios for QAM signals 有权
    用于计算QAM信号的比特对数似然比的方法和装置

    公开(公告)号:US06834088B2

    公开(公告)日:2004-12-21

    申请号:US09804585

    申请日:2001-03-12

    IPC分类号: H04L512

    CPC分类号: H04L27/38 H04L25/067

    摘要: A method and apparatus to efficiently calculate log-likelihood ratios for each bit within M-ary QAM modulated symbols transmitted in a communication system. The method and apparatus utilize characteristics of square Karnaugh mapping of the QAM symbol constellation in order to reduce the number of distance calculations needed to determine the log-likelihood ratios for each of the bits within a demodulated symbol. The reduction in the number of calculations affords significant reduction in the time needed to determine log-likelihood ratios, especially for higher order M-ary QAM systems.

    摘要翻译: 一种用于在通信系统中发送的M-ary QAM调制符号内的每个比特有效地计算对数似然比的方法和装置。 该方法和装置利用QAM符号星座的平方Karnaugh映射的特征,以便减少确定解调符号内的每个位的对数似然比所需的距离计算的数量。 计算次数的减少大大减少了确定对数似然比所需的时间,特别是对于较高阶的M系QAM系统。

    Method and apparatus for spreading and despreading data in a spread spectrum communication system
    10.
    发明授权
    Method and apparatus for spreading and despreading data in a spread spectrum communication system 有权
    用于在扩展频谱通信系统中扩展和解扩数据的方法和装置

    公开(公告)号:US06324206B1

    公开(公告)日:2001-11-27

    申请号:US09511228

    申请日:2000-02-23

    IPC分类号: H04L2730

    摘要: A current mode of operation is provided to a Walsh spreader (203), and based on the current mode of operation, the Walsh spreader (203) either varies a Walsh code at a symbol rate, or holds the Walsh code constant. During multi-carrier transmission a first symbol within a data stream (210) is spread with a first Walsh code, while symbols immediately preceding and following the first symbol are spread by a another, differing Walsh code. The sequence of Walsh codes exiting the spreader (201) is further scrambled by a pair of Pseudo-Noise (PN) codes (224) that are held constant for three Walsh code periods during multi-carrier transmission, and are not held constant during direct-spread transmission.

    摘要翻译: 向沃尔什扩展器(203)提供当前操作模式,并且基于当前操作模式,沃尔什扩展器(203)以符号速率改变沃尔什码,或者维持沃尔什码恒定。 在多载波传输期间,数据流(210)内的第一符号以第一沃尔什码扩展,而紧邻第一符号之前和之后的符号由另一不同的沃尔什码扩展。 离散扩展器(201)的沃尔什码序列进一步被多载波传输期间的三个沃尔什码周期保持恒定的伪噪声(PN)码对(224)加扰,并且在直接 扩展传输。