Multiple configuration communication apparatus
    1.
    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

    CPC classification number: H04W88/06

    Abstract: 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.

    Abstract translation: 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
    2.
    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

    CPC classification number: H04W16/04 H04W24/00 H04W28/06 H04W72/02 H04W84/12

    Abstract: 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.

    Abstract translation: 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
    3.
    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

    Abstract: 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.

    Abstract translation: 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
    4.
    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

    CPC classification number: H04L27/38 H04L25/067

    Abstract: 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.

    Abstract translation: 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
    5.
    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

    CPC classification number: H04J13/0048 H04B1/707 H04L5/026 H04L27/2626

    Abstract: 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.

    Abstract translation: 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。

    Multi-mode transmitter and receiver
    6.
    发明授权
    Multi-mode transmitter and receiver 有权
    多模发射机和接收机

    公开(公告)号:US6088399A

    公开(公告)日:2000-07-11

    申请号:US199006

    申请日:1998-11-24

    CPC classification number: H04L5/06 H04B1/692

    Abstract: A transmitter (300) comprises summers (301-307, 3178-319), and mixers (309-315, 333). During multi-carrier transmission, multiple I and Q components enter the transmitter. I.sub.1 is summed with I.sub.3, Q.sub.3 is subtracted from Q.sub.1, Q.sub.1 is added to Q.sub.3, and I.sub.3 is subtracted from I.sub.1. The outputs of a first and a second summer (301, 305) enters a first and a second mixer (309, 313) where they are mixed by a cosine function. Similarly, the outputs of a third and a fourth summer (303, 307) enter a third and a fourth mixer (311, 315) where they are mixed by a sine function. The output from first and the second mixer (309, 311) enter a first summer (317) where they are summed along with the I.sub.2 component. The output from the third and the fourth mixer (313, 315) enters a second summer (319) where they are summed along with the Q.sub.2 component.

    Abstract translation: 发射机(300)包括夏季(301-307,3178-319)和混频器(309-315,333)。 在多载波传输期间,多个I和Q组件进入发射机。 I1与I3相加,从Q1中减去Q3,Q1加到Q3,从I1中减去I3。 第一和第二加法器(301,305)的输出进入第一和第二混合器(309,313),在该混合器中它们被余弦函数混合。 类似地,第三和第四加法器(303,307)的输出进入第三和第四混合器(311,315),在那里它们被正弦函数混合。 第一和第二混合器(309,311)的输出进入第一个加法器(317),它们与I2分量相加。 来自第三和第四混合器(313,315)的输出进入第二个加法器(319),在那里它们与Q2分量相加。

    INDOOR NAVIGATION TO KNOWN POINTS OF INTEREST
    8.
    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
    9.
    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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