APPARATUS AND METHODS FOR ESTABLISHING CLIENT-HOST ASSOCIATIONS WITHIN A WIRELESS NETWORK
    101.
    发明申请
    APPARATUS AND METHODS FOR ESTABLISHING CLIENT-HOST ASSOCIATIONS WITHIN A WIRELESS NETWORK 有权
    在无线网络中建立客户主机协会的设备和方法

    公开(公告)号:US20090252130A1

    公开(公告)日:2009-10-08

    申请号:US12098025

    申请日:2008-04-04

    CPC classification number: H04W72/04 H04W8/005 H04W84/18

    Abstract: In embodiments, a one-to-one association is established between a client and a host in a wireless network, such as a wireless local area network or a wireless personal communication network. The client may be a display device. The host may be a cellular telephone. Active association corresponds to the host exclusively using a shared resource of the client. When the association is solid, requests from other hosts to establish an active association are denied. When the association is fragile, such requests are granted. In the case of a semi-solid association, a request from another host to establish an active association causes the client to generate a query to the host currently owning the active association. If the host currently owning the association grants a release, a new active association is established between the requesting host and the client. Otherwise, the request from the other host is denied.

    Abstract translation: 在实施例中,在诸如无线局域网或无线个人通信网络的无线网络中的客户端和主机之间建立一对一关联。 客户端可以是显示设备。 主机可以是蜂窝电话。 活动关联对应于专用于客户端的共享资源的主机。 当关联牢固时,拒绝其他主机建立活动关联的请求。 当协会脆弱时,这种请求被授予。 在半固体关联的情况下,来自另一主机的建立活动关联的请求导致客户机向当前拥有活动关联的主机生成查询。 如果当前拥有关联的主机授予释放,则在请求主机和客户端之间建立新的活动关联。 否则,拒绝其他主机的请求。

    PROXY SERVER FOR FACILITATING POWER CONSERVATION IN WIRELESS CLIENT TERMINALS
    102.
    发明申请
    PROXY SERVER FOR FACILITATING POWER CONSERVATION IN WIRELESS CLIENT TERMINALS 有权
    PROXY服务器,用于在无线客户终端中实现电力维护

    公开(公告)号:US20090221261A1

    公开(公告)日:2009-09-03

    申请号:US12041644

    申请日:2008-03-03

    Inventor: Samir S. Soliman

    Abstract: A novel power conservation scheme is provided for conserving power in client terminals by using a proxy server. The client terminal, having a low-power communication interface and a high-power communication interface, may power down its high-power communication interface, to conserve power. Prior to shutting off its high-power communication interface, the client terminal may assign a host terminal to act as a proxy for the client terminal. The host terminal monitors the paging channels for the client terminal via a high-power communication interface. If the host terminal detects a paging message for the client terminal, it forwards at least a portion of the paging message to the client terminal via a low-power communication interface. Upon receipt of the paging message from the host terminal via its low-power communication interface, the client terminal may power up its high-power communication interface and directly respond to an access terminal that initiated the paging message.

    Abstract translation: 提供了一种新颖的节能方案,用于通过使用代理服务器来节省客户端的功率。 具有低功率通信接口和高功率通信接口的客户终端可以将其高功率通信接口断电以节省功率。 在关闭其高功率通信接口之前,客户终端可以分配主机终端来充当客户终端的代理。 主机终端通过大功率通信接口监视客户终端的寻呼信道。 如果主机终端检测到客户终端的寻呼消息,则它通过低功率通信接口将至少一部分寻呼消息转发给客户终端。 在通过其低功率通信接口从主机终端接收到寻呼消息时,客户终端可以加电其高功率通信接口并直接响应发起寻呼消息的接入终端。

    ENHANCED FREQUENCY DOMAIN SPREADING
    103.
    发明申请
    ENHANCED FREQUENCY DOMAIN SPREADING 有权
    增强频域扩展

    公开(公告)号:US20090004984A1

    公开(公告)日:2009-01-01

    申请号:US11772092

    申请日:2007-06-29

    CPC classification number: H04L5/0044

    Abstract: A system and method are provided for using frequency domain spreading to generate real signals in the time domain. The method supplies a first complex frequency domain symbol (α) and a second complex frequency domain symbol (αi), and maps (α+jαi) onto a subcarrier (+f). Further, (α−jαi)* is mapped onto a mirror subcarrier (−f). The mappings are converted into a complex time domain symbol carrying α and jαi in a single inverse fast Fourier transformation (IFFT). The real component of the complex time domain symbol (α) is initially supplied, and subsequently supplied is an imaginary component of the complex time domain symbol (αi). The real symbol component (α) is supplied by carrying a on the subcarrier (+f), and carrying (α)* on the mirror subcarrier (−f). The imaginary symbol component αi is supplied by carrying αi on the subcarrier (+f), and carrying (αi)* on the mirror subcarrier (−f).

    Abstract translation: 提供了一种使用频域扩展在时域中产生实信号的系统和方法。 该方法提供第一复杂频域符号(α)和第二复频域符号(alphai),并将(α+ jalphai)映射到子载波(+ f)上。 此外,(alpha-jalphai)*映射到镜像副载波(-f)。 映射在单个快速傅里叶逆变换(IFFT)中被转换成携带alpha和jalphai的复杂时域符号。 最初提供复时域符号(α)的真实分量,随后提供复数时域符号(alphai)的虚部分。 通过在子载波(+ f)上携带,并在镜像副载波(-f)上携带(α)*来提供真实符号分量(α)。 通过在副载波(+ f)上携带alphai并在镜像副载波(-f)上携带(alphai)*来提供虚拟符号分量alphai。

    Method of and system for calibrating a repeater
    104.
    发明授权
    Method of and system for calibrating a repeater 有权
    中继器校准方法和系统

    公开(公告)号:US07295808B2

    公开(公告)日:2007-11-13

    申请号:US10366960

    申请日:2003-02-14

    Inventor: Samir S. Soliman

    CPC classification number: H04W64/00 G01S5/02 G01S5/0205 H04B7/155 H04B17/21

    Abstract: A method of and system for calibrating a repeater in a wireless communications system are provided. The one or more calibration parameters for the repeater are derived from (a) time measurements derived from one or more signals relayed by the repeater and received at a plurality of different measurement positions, and (b) the positions of the measurement locations. In one application, the one or more parameters are used in determining the positions of subscriber stations in the wireless communications system.

    Abstract translation: 提供了一种在无线通信系统中校准中继器的方法和系统。 用于中继器的一个或多个校准参数来自(a)从由中继器中继并在多个不同测量位置接收的一个或多个信号导出的时间测量值,以及(b)测量位置的位置。 在一个应用中,一个或多个参数用于确定无线通信系统中用户站的位置。

    Repeater identification in position determination system
    106.
    发明授权
    Repeater identification in position determination system 失效
    位置确定系统中的中继器识别

    公开(公告)号:US07072612B2

    公开(公告)日:2006-07-04

    申请号:US10434671

    申请日:2003-05-09

    Inventor: Samir S. Soliman

    CPC classification number: G01S5/0205 G01S5/0215 H04B7/155 H04W64/00

    Abstract: A method of identifying whether a first signal received at a subscriber station has been relayed by a repeater. The method involves measuring at the subscriber station a time difference of arrival between the first signal and a second signal. A hyperboloid or other potential solution surface is then formed from the measured time difference of arrival. A determination is then made whether or not the first signal was relayed by a repeater based on information derived from the potential solution surface.

    Abstract translation: 一种识别在用户站接收的第一信号是否已被中继器中继的方法。 该方法包括在用户站处测量第一信号和第二信号之间的到达时间差。 然后从测量的到达时间差形成双曲面或其他潜在的溶液表面。 然后,基于从潜在解表面导出的信息,确定第一信号是否由中继器中继。

    Method and apparatus for wireless remote telemetry using ad-hoc networks

    公开(公告)号:US06985087B2

    公开(公告)日:2006-01-10

    申请号:US10099128

    申请日:2002-03-15

    Inventor: Samir S. Soliman

    Abstract: A wireless remote telemetry system uses low-cost, low-power ad-hoc networks to provide flexible reading and control of remote devices. In an embodiment applicable to a utility service, consumption of electrical power among a population of customers is measured by a utility metering system having ad-hoc network communication capability. The remote metering unit transmits information over an ad-hoc network to one or more intermediate communication units or hops. The intermediate communication units or hops include a mobile unit, a mobile base unit, a subscriber home computer, and a home base unit. Each of these hops may co-exist in the same large-scale system. The intermediate communication units transfer the received information to a central controller through multi-hop ad-hoc networks or cellular networks, according to intelligent planning by the wireless infrastructure or the central unit.

    Method and apparatus for detecting forward and reverse link imbalance in digital cellular communication systems
    108.
    发明授权
    Method and apparatus for detecting forward and reverse link imbalance in digital cellular communication systems 失效
    用于检测数字蜂窝通信系统中的前向和反向链路不平衡的方法和装置

    公开(公告)号:US06785249B2

    公开(公告)日:2004-08-31

    申请号:US09166553

    申请日:1998-10-05

    Inventor: Samir S. Soliman

    CPC classification number: H04W72/042 H04W68/00 H04W72/085 H04W74/00

    Abstract: A method and apparatus for detecting forward and reverse link imbalances in a digital cellular communication system. The method preferably uses an indication of “maximum access probes” to determine whether a link imbalance caused a reverse link failure to occur. The maximum access probes condition indicates that a wireless unit has attempted to access a base station a pre-defined maximum number of times. The method preferable uses an indication of a lost paging channel and a traffic channel initialization (TCI) time out to determine whether a link imbalance caused a forward link failure to occur. If the wireless unit did not lose the paging channel, the method determines whether a TCI time out occurred. If the wireless unit lost the paging channel, or it did not lose the paging channel but a TCI time out occurred, the method determines the cause for the forward link failure. There are two potential causes in this scenario: (1) either the wireless unit is a significant distance from the base station; or (2) the paging channel suffers from significant interference. The method determines the cause and either instructs the wireless unit to perform an idle handoff to a neighboring base station or to exit the digital system.

    Abstract translation: 一种用于检测数字蜂窝通信系统中的前向和反向链路不平衡的方法和装置。 该方法优选地使用“最大接入探测器”的指示来确定链路不平衡是否导致发生反向链路故障。 最大接入探测条件指示无线单元已经尝试访问基站预定义的最大次数。 该方法优选地使用丢失寻呼信道和业务信道初始化(TCI)超时的指示来确定链路不平衡是否导致正向链路故障发生。 如果无线单元没有丢失寻呼信道,则该方法确定是否发生TCI超时。 如果无线单元丢失了寻呼信道,或者没有丢失寻呼信道,但是发生了TCI超时,则该方法确定了前向链路故障的原因。 在这种情况下有两个潜在的原因:(1)无线单元距离基站很远; 或者(2)寻呼信道受到严重的干扰。 该方法确定原因并且指示无线单元执行到相邻基站的空闲切换或退出数字系统。

    Monitoring of CDMA load and frequency reuse based on reverse link signal-to-noise ratio
    109.
    发明授权
    Monitoring of CDMA load and frequency reuse based on reverse link signal-to-noise ratio 有权
    基于反向链路信噪比的CDMA负载和频率重用监控

    公开(公告)号:US06356531B1

    公开(公告)日:2002-03-12

    申请号:US09327103

    申请日:1999-06-07

    Inventor: Samir S. Soliman

    CPC classification number: H04W16/04 Y02D70/00

    Abstract: A system and method for monitoring the load on a CDMA communication system having a base station and a plurality of users. A measure of voice activity in the communication system is determined, and a current value of frequency reuse efficiency equal to an initial value of frequency reuse efficiency is provided. A power determination is made according to the measured voice activity and the current value of frequency reuse efficiency. The current value of frequency reuse efficiency is updated using the power determination to provide a new current value of frequency reuse efficiency. The power determination and the update of the frequency reuse efficiency are iteratively repeated until convergence to provide a converged value of frequency reuse efficiency. The load on the communication system is then determined according to the converged frequency reuse efficiency value.

    Abstract translation: 一种用于监视具有基站和多个用户的CDMA通信系统上的负载的系统和方法。 确定通信系统中语音活动的度量,并且提供频率重用效率的当前值等于频率重用效率的初始值。 根据测量的语音活动和频率重用效率的当前值进行功率确定。 使用功率确定来更新频率重用效率的当前值,以提供新的频率重用效率的当前值。 频率重用效率的功率确定和更新被迭代地重复,直到收敛以提供频率重用效率的收敛值。 然后根据融合频率重用效率值确定通信系统上的负载。

    Method and apparatus for determining position location using reduced number of GPS satellites and synchronized and unsynchronized base stations
    110.
    发明授权
    Method and apparatus for determining position location using reduced number of GPS satellites and synchronized and unsynchronized base stations 有权
    使用减少数量的GPS卫星和同步和不同步的基站来确定位置位置的方法和装置

    公开(公告)号:US06353412B1

    公开(公告)日:2002-03-05

    申请号:US09430618

    申请日:1999-10-29

    Inventor: Samir S. Soliman

    Abstract: A method and apparatus for determining the position of a wireless communication device using global positioning system (GPS) satellites, base stations synchronized to GPS time and base stations that are unsynchronized with GPS time. The unsynchronized base stations are synchronized with one another. Time of arrival information is adjusted to take into account the fact that wireless communication devices that received GPS time information from a base station receive that information biased by the one-way delay that is encountered by the signal that communicates that information to the wireless communication device. In addition, time difference of arrival information for base stations that are not synchronized to GPS time allows the bias between these base stations GPS time to be eliminated.

    Abstract translation: 一种用于使用全球定位系统(GPS)卫星确定无线通信设备的位置的方法和装置,与GPS时间同步的基站和与GPS时间不同步的基站。 不同步的基站彼此同步。 调整到达时间信息以考虑以下事实:从基站接收GPS时间信息的无线通信设备接收到通过将该信息传送到无线通信设备的信号遇到的单向延迟偏差的信息 。 此外,与GPS时间不同步的基站的到达信息的时间差允许这些基站GPS时间之间的偏差被消除。

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