公开(公告)号：US06950417B2

公开(公告)日：2005-09-27

申请号：US10703883

申请日：2003-11-07

申请人： Samir S. Soliman

发明人： Samir S. Soliman

IPC分类号： H04B7/26 ,  H04W68/00 ,  H04W72/08 ,  H04W74/00 ,  H04B7/216

CPC分类号： H04W72/042 ,  H04W68/00 ,  H04W72/085 ,  H04W74/00

摘要： An apparatus for detecting forward and reverse link imbalances in a digital cellular communication system is provided. An indication of maximum access probes is used 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. An indication of a lost paging channel and a traffic channel initialization (TCI) time out is used to determine whether a link imbalance caused a forward link failure to occur. If the wireless unit did not lose the paging channel, the apparatus 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 apparatus determines the cause for the forward link failure.

摘要翻译： 提供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装置。 使用最大接入探测器的指示来确定链路不平衡是否导致反向链路故障发生。 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。 使用丢失的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，则该设备确定是否发生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，但发生了TCI超时，则该设备确定了前向链路故障的原因。

公开(公告)号：US06671291B1

公开(公告)日：2003-12-30

申请号：US09360491

申请日：1999-07-21

申请人： Samir S. Soliman

发明人： Samir S. Soliman

IPC分类号： H04L700

CPC分类号： H04B7/269 ,  H04B7/2668

摘要： A method and apparatus for sequentially synchronized timing and frequency generation in a communication network includes a parent station for maintaining system time and frequency values, a time/frequency transfer unit for receiving and demodulating the system time and frequency values from the parent station and generating corrected system time and frequency values by adjusting a clock and the center frequency of a pilot signal at a child station to remove time and frequency discrepancies, and a child station to which the time/frequency transfer unit directly communicates the corrected system time and frequency values. The child station become a parent station upon communication of the corrected system time and frequency values. The sequence may be repeated for as many stations as are deployed in the network.

摘要翻译： 一种用于在通信网络中顺序同步的定时和频率产生的方法和装置包括：用于维持系统时间和频率值的母站;时间/频率传送单元，用于接收和解调来自母站的系统时间和频率值，并产生校正的 通过调整儿童站的导频信号的时钟和中心频率来消除时间和频率差异的系统时间和频率值，以及时间/频率传送单元直接传达校正的系统时间和频率值的子站。 在通信校正的系统时间和频率值后，子站成为母站。 对于在网络中部署的站点，可以重复该序列。

公开(公告)号：US06490460B1

公开(公告)日：2002-12-03

申请号：US09204026

申请日：1998-12-01

申请人： Samir S. Soliman

发明人： Samir S. Soliman

IPC分类号： H04B700

CPC分类号： H04W52/12 ,  H04W52/226 ,  H04W52/24 ,  H04W52/28 ,  H04W52/282 ,  H04W52/283 ,  H04W52/36

摘要： A method and apparatus for dynamically adjusting a power control loop that attempts to maintain either the transmit power of a signal sent from a base station to a mobile station or the signal to noise ratio of a signal sent from the mobile station to the base station above a minimum threshold. Location information that is representative of the distance and morphology between the mobile station and the base station is determined. The minimum threshold of the power control loop is then adjusted in accordance with the location information such that the minimum threshold varies as the distance and the morphology between the mobile station and the base station change. A transmitter sends the signal at a power level that is controlled by the power control loop with the adjusted minimum threshold.

摘要翻译： 一种用于动态调整功率控制环路的方法和装置，该功率控制环路尝试将从基站发送到移动站的信号的发射功率或从移动站向基站发送的信号的信噪比保持在上面 最小门槛。 确定代表移动台和基站之间的距离和形态的位置信息。 然后根据位置信息调整功率控制环路的最小阈值，使得最小阈值随着移动台与基站之间的距离和形态的变化而变化。 发射机以功率控制回路控制的功率电平发送信号，调整后的最小阈值。

公开(公告)号：US06430415B1

公开(公告)日：2002-08-06

申请号：US09280337

申请日：1999-03-29

申请人： Parag A. Agashe ,  Samir S. Soliman ,  Alkinoos Hector Vayanos

发明人： Parag A. Agashe ,  Samir S. Soliman ,  Alkinoos Hector Vayanos

IPC分类号： H04Q720

CPC分类号： G01S19/09 ,  G01S19/42

摘要： An apparatus and method for locating a remote station operating in analog mode, and that may not have a sense of network time, using an inverted GPS approach. The invention also enables remote stations operating in analog mode that do not know true GPS time to determine their own location. A time stamp, reflecting the approximate time a satellite range measurement is made, is assigned to the measurement at either the remote station or elsewhere in the network. The difference between true GPS network time and the measurement time is treated as a variable “error” in measurement, the length of which is unknown. This variable error is determined and used in determining the physical location of the remote station.

摘要翻译： 一种用于定位以模拟模式操作并且可能不具有网络时间感的远程站的装置和方法，其使用反向GPS方法。 本发明还使得以模拟模式操作的远程站不知道真正的GPS时间来确定它们自己的位置。 反映卫星测距的近似时间的时间戳被分配给远程站或网络其他地方的测量。 真正的GPS网络时间和测量时间之间的差异被认为是测量中的变量“误差”，其长度是未知的。 确定该可变误差并用于确定远程站的物理位置。

公开(公告)号：US06081229A

公开(公告)日：2000-06-27

申请号：US40501

申请日：1998-03-17

申请人： Samir S. Soliman ,  Klein S. Gilhousen

发明人： Samir S. Soliman ,  Klein S. Gilhousen

IPC分类号： G01S19/03 ,  G01S1/00 ,  G01S5/00 ,  G01S5/02 ,  G01S5/14 ,  G01S19/09 ,  G01S19/12 ,  G01S19/23 ,  G01S19/25 ,  G01S19/46 ,  G04G7/02 ,  H04B7/15 ,  H04W64/00 ,  H04B7/185

CPC分类号： G01S5/0205 ,  G01S19/235 ,  G01S19/25 ,  G01S19/46 ,  G01S5/0054 ,  G01S5/009 ,  G01S5/02 ,  G01S5/021 ,  G04G7/02 ,  H04W64/00 ,  G01S2205/008 ,  G01S5/0236

摘要： A system and method for determining a position of a mobile wireless transceiver. The inventive system merges GPS position location and wireless communication technologies to achieve a precise position location in dense urban and other environments when line-of-sight to the satellites is somewhat obscured. The inventive method uses signals from only two GPS satellites and the serving terrestrial base station. In a most general sense, the inventive method includes the steps of receiving at a base station a first signal transmitted from a first GPS satellite and a second signal transmitted from a second GPS satellite. The mobile transceiver is adapted to receive these GPS signals as well and transmit a third signal to the base station in response thereto. The base station receives the third signal and uses it to calculate the position of the wireless unit. In a specific implementation, the base station sends aiding information to the wireless unit. The aiding information is used by the wireless unit to quickly acquire the signals transmitted by the first and second satellites and includes satellite identification information, Doppler shift information, and range information between the base station and the satellites. On the acquisition by the wireless unit of the signals transmitted by the first and second satellites, the wireless unit wireless unit calculates the range between the wireless unit and each of the satellites. This range information is transmitted back to the base station along with information as to the time at which the measurement was made. In a CDMA implementation, the time at which the wireless unit transmits the third signal to the base station is known by the base station. The delay in the receipt of the third signal provides an indication to the base station as to the range between the base station and the wireless unit. The base station utilizes information known as to its position, the position of the first and second satellites relative to the wireless unit and the range to the wireless unit from the base station to calculate the position of the wireless unit.

公开(公告)号：US5596570A

公开(公告)日：1997-01-21

申请号：US651310

申请日：1996-05-22

申请人： Samir S. Soliman

发明人： Samir S. Soliman

IPC分类号： H04J13/04 ,  H04B7/005 ,  H04B7/26 ,  H04B17/00 ,  H04J13/02

CPC分类号： H04W52/267 ,  H04B17/3912 ,  H04B7/2628

摘要： A method and apparatus for simulating signal interference in one communication channel within a communication system, such as cellular or wireless subscriber telephone and/or data systems. The communication system may be of a cellular type in which users from a plurality of cells communicate information signals between one another using at least one base station and code division multiple access (CDMA) spread spectrum type communication signals. The base station is included in a first of the cells and has a transmitter from which information is transmitted to subscriber units over at least one communication channel. The disclosed method includes the step of determining a first composite signal energy associated with signal transmission from the base station transmitter over a first set of simulated communication channels. The simulation method further contemplates estimating a first average data rate for the first composite signal energy. Signal power transmitted over the one communication channel is adjusted in accordance with a first interference signal which is based on the first composite signal energy and first average data rate. In a preferred implementation, a determination is also made of a second composite signal energy associated with signal transmissions from base station transmitters in other cells over a second set of simulated communication channels. An estimate is also made of a second average data rate for the second composite signal energy to enable generation of a second interference signal.

摘要翻译： 一种在诸如蜂窝或无线用户电话和/或数据系统的通信系统内的一个通信信道中模拟信号干扰的方法和装置。 通信系统可以是蜂窝类型，其中来自多个小区的用户使用至少一个基站和码分多址（CDMA）扩频类型通信信号在彼此之间传送信息信号。 基站被包括在第一个小区中，并且具有发射机，通过至少一个通信信道从其发送信息给用户单元。 所公开的方法包括以下步骤：在第一组模拟通信信道上确定与来自基站发射机的信号传输相关联的第一复合信号能量。 仿真方法还考虑估计第一复合信号能量的第一平均数据速率。 根据基于第一复合信号能量和第一平均数据速率的第一干扰信号来调整通过一个通信信道发送的信号功率。 在优选实施方式中，还确定与在第二组模拟通信信道上的其他小区中的来自基站发射机的信号传输相关联的第二复合信号能量。 还对第二复合信号能量的第二平均数据速率进行估计以能够产生第二干扰信号。

公开(公告)号：US09313067B2

公开(公告)日：2016-04-12

申请号：US11838773

申请日：2007-08-14

申请人： Samir S. Soliman

发明人： Samir S. Soliman

IPC分类号： H04L12/28 ,  H04L25/00 ,  H04L27/26 ,  H04B1/00 ,  H04L27/00

CPC分类号： H04L27/2626 ,  H04B1/0067 ,  H04L27/0008 ,  H04L27/2647 ,  H04L27/2657

摘要： Systems and methods are provided for transceiving information via alternate bandwidths using a shared baseband processor. The transmission method selects clock sampling frequencies, for example a first clock frequency (l×F1), or a second clock frequency (k×F1), where k>l. Digital information is processed using the selected clock sampling frequency and a baseband signal is generated. Regardless of the clock sampling frequency selected, the baseband signal may have the same number of subcarrier frequencies. The baseband signal is converted into a radio frequency (RF) signal having a data rate responsive to a selected clock frequency, and transmitted. More explicitly, a first baseband signal is generated having a first data rate in response to selecting the first clock frequency. A second baseband signal having a second data rate greater than the first data rate, may be generated in response to selecting the second clock frequency.

摘要翻译： 提供了系统和方法，用于通过使用共享基带处理器的交替带宽收发信息。 传输方法选择时钟采样频率，例如第一时钟频率（l×F1）或第二时钟频率（k×F1），其中k> l。 使用所选择的时钟采样频率处理数字信息，并产生基带信号。 不管选择的时钟采样频率如何，基带信号可以具有相同数量的子载波频率。 基带信号被转换成具有响应于所选择的时钟频率的数据速率并被发送的射频（RF）信号。 更明确地，响应于选择第一时钟频率，生成具有第一数据速率的第一基带信号。 响应于选择第二时钟频率，可以产生具有大于第一数据速率的第二数据速率的第二基带信号。

公开(公告)号：US09125134B2

公开(公告)日：2015-09-01

申请号：US12861616

申请日：2010-08-23

申请人： Soumya Das ,  Nishith Chaubey ,  Samir S. Soliman

发明人： Soumya Das ,  Nishith Chaubey ,  Samir S. Soliman

IPC分类号： H04W4/00 ,  H04W48/08 ,  H04W52/24 ,  H04W52/28 ,  H04W84/04 ,  H04W84/18

CPC分类号： H04W48/08 ,  H04W52/242 ,  H04W52/243 ,  H04W52/244 ,  H04W52/245 ,  H04W52/283 ,  H04W84/045 ,  H04W84/18

摘要： Out of band (OOB) communication facilitates femtocell operation. One or more proximity agent provides out of band communication with nodes (e.g., mobile client devices) to provide assistance in or otherwise facilitate femtocell discovery, reselection, and/or interference mitigation. Out of band communication techniques provide for low power discovery, association, and communication as compared to corresponding femtocell or cellular network communication techniques. An OOB proximity agent is provided in association with a femtocell to provide transmit power level control with respect to the femtocell. In operation, if a client device searches for and finds an OOB proximity agent, it will find a femtocell, thereby avoiding a need to aggressively search for femtocells.

摘要翻译： 带外（OOB）通信促进了毫微微小区的操作。 一个或多个邻近代理提供与节点（例如，移动客户端设备）的带外通信，以提供对毫微微蜂窝发现，重选和/或干扰减轻的辅助或以其他方式促进。 与对应的毫微微小区或蜂窝网络通信技术相比，带外通信技术提供低功率发现，关联和通信。 与毫微微小区相关联地提供OOB邻近代理以提供关于毫微微小区的发射功率电平控制。 在操作中，如果客户端设备搜索并找到OOB邻近代理，则会发现毫微微小区，从而避免了积极搜索毫微微小区的需要。

公开(公告)号：US08838117B2

公开(公告)日：2014-09-16

申请号：US13087760

申请日：2011-04-15

申请人： Samir S. Soliman ,  Soumya Das ,  Nishith Chaubey ,  Olufunmilola O. Awoniyi

发明人： Samir S. Soliman ,  Soumya Das ,  Nishith Chaubey ,  Olufunmilola O. Awoniyi

IPC分类号： H04W36/00 ,  H04W4/00 ,  H04W40/00 ,  H04L12/28 ,  H04W36/04 ,  H04W84/18 ,  H04W24/10 ,  H04W36/08 ,  H04W8/26 ,  H04W84/04 ,  H04W8/00

CPC分类号： H04W36/04 ,  H04W8/005 ,  H04W8/26 ,  H04W24/10 ,  H04W36/08 ,  H04W84/045 ,  H04W84/18

摘要： Systems, methods, devices, and computer program products are described for supporting macrocell-to-femtocell hand-ins of active macro communications for mobile access terminals. A femto-proxy system is provided including a femtocell and an out-of-band (OOB) proxy. While the femtocell may be addressed by the macro network according to a potentially non-unique identifier (e.g., its PN offset), the OOB proxy is addressable according to a unique OOB identifier (e.g., a Bluetooth device address, BD_ADDR). When the mobile access terminal is in proximity to the femto-proxy system, it detects the OOB proxy and communicates the unique OOB identifier to the core network via the macro network (e.g., as part of a measurement report). The OOB identifier is mapped (e.g., in the core network) to the femtocell, allowing the core network to uniquely identify the appropriate target femtocell for active hand-in.

摘要翻译： 描述了系统，方法，设备和计算机程序产品，用于支持用于移动接入终端的主动宏通信的宏蜂窝到毫微微蜂窝基站的接入。 提供了包括毫微微小区和带外（OOB）代理）的毫微微代理系统。 毫微微小区可以根据潜在的非唯一标识符（例如，其PN偏移）由宏网络寻址，但是OOB代理可以根据唯一的OOB标识符（例如，蓝牙设备地址BD_ADDR）寻址。 当移动接入终端接近毫微微代理系统时，它检测OOB代理，并通过宏网络（例如，作为测量报告的一部分）将唯一的OOB标识符传送到核心网络。 OOB标识符被映射到（例如，在核心网络中）到毫微微小区，允许核心网络唯一地识别适当的目标毫微微蜂窝以进行主动手持。

公开(公告)号：US08717987B2

公开(公告)日：2014-05-06

申请号：US13008258

申请日：2011-01-18

申请人： Soumya Das ,  Nishith Chaubey ,  Samir S. Soliman

发明人： Soumya Das ,  Nishith Chaubey ,  Samir S. Soliman

IPC分类号： H04W4/00

CPC分类号： H04W48/14 ,  H04W48/16 ,  H04W48/20 ,  H04W84/045

摘要： Systems, methods, devices, and computer program products are described for mitigating macrocell interference during femtocell discovery in a wireless communications system. In one example, a mobile device may be camped on a macrocell. A femtocell transmits out-of-band (OOB) discovery signals to, or receives OOB band discovery signals from, the mobile device to facilitate presence detection. The femtocell may also be configured to use various techniques to transmit in-band beacon bursts (e.g., low or high power beacon bursts) to the mobile device in the macrocell frequency range to trigger the mobile device to perform an inter-frequency scan for cell reselection. The femtocell may transmit communications signals to the mobile device in a femtocell frequency range (different from the macrocell frequency range) after the mobile device has discovered and selected the femtocell.

摘要翻译： 描述了系统，方法，设备和计算机程序产品，用于在无线通信系统中的毫微微小区发现期间减轻宏小区干扰。 在一个示例中，移动设备可以驻留在宏小区上。 毫微微小区向移动设备发送带外（OOB）发现信号或从移动设备接收OOB频带发现信号以便于存在检测。 毫微微小区还可以被配置为使用各种技术来在宏小区频率范围内向移动设备发送带内信标突发（例如，低功率或高功率信标突发），以触发移动设备对小区执行频率间扫描 重选。 在移动设备已经发现并选择了毫微微小区之后，毫微微小区可以在毫微微小区频率范围（不同于宏小区频率范围）中向移动设备发送通信信号。