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公开(公告)号：US09642105B2
公开(公告)日：2017-05-02
申请号：US12947022
申请日：2010-11-16
申请人： Chirag Sureshbhai Patel , Mehmet Yavuz , Vansh Pal Singh Makh , Luca Blessent , Farhad Meshkati
发明人： Chirag Sureshbhai Patel , Mehmet Yavuz , Vansh Pal Singh Makh , Luca Blessent , Farhad Meshkati
CPC分类号： H04W56/0015
摘要： An access point (e.g., a femto cell) that is connected in an active call with an access terminal may cooperate with that access terminal or another access terminal to derive timing information from one or more neighboring access points (e.g., macro access points). In addition, an access point may cooperate with an idle access terminal to derive timing information from one or more neighboring access points. For example, an access terminal may determine the difference between pilot transmission timing or frame transmission timing of a femto cell and a macro cell, and report this timing difference to the femto cell. Based on this timing difference, the femto cell may adjust the timing and/or frequency of its transmissions so that these transmissions are synchronized in time and/or frequency as per network operation requirements.
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公开(公告)号：US20110281574A1
公开(公告)日：2011-11-17
申请号：US12947022
申请日：2010-11-16
申请人： Chirag Sureshbhai Patel , Mehmet Yavuz , Vansh Pal Singh Makh , Luca Blessent , Farhad Meshkati
发明人： Chirag Sureshbhai Patel , Mehmet Yavuz , Vansh Pal Singh Makh , Luca Blessent , Farhad Meshkati
IPC分类号： H04W4/00
CPC分类号： H04W56/0015
摘要： An access point (e.g., a femto cell) that is connected in an active call with an access terminal may cooperate with that access terminal or another access terminal to derive timing information from one or more neighboring access points (e.g., macro access points). In addition, an access point may cooperate with an idle access terminal to derive timing information from one or more neighboring access points. For example, an access terminal may determine the difference between pilot transmission timing or frame transmission timing of a femto cell and a macro cell, and report this timing difference to the femto cell. Based on this timing difference, the femto cell may adjust the timing and/or frequency of its transmissions so that these transmissions are synchronized in time and/or frequency as per network operation requirements.
摘要翻译： 以活动呼叫连接到接入终端的接入点（例如，毫微微小区）可以与该接入终端或另一接入终端协作以从一个或多个相邻接入点（例如，宏接入点）导出定时信息。 此外，接入点可以与空闲接入终端协作以从一个或多个相邻接入点导出定时信息。 例如，接入终端可以确定毫微微小区和宏小区的导频发送定时或帧发送定时之间的差异，并将该定时差报告给毫微微小区。 基于该定时差异，毫微微小区可以调整其传输的定时和/或频率，使得这些传输按照网络操作要求在时间和/或频率上同步。
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公开(公告)号：US09392562B2
公开(公告)日：2016-07-12
申请号：US12947039
申请日：2010-11-16
申请人： Chirag Sureshbhai Patel , Mehmet Yavuz , Vansh Pal Singh Makh , Luca Blessent , Farhad Meshkati
发明人： Chirag Sureshbhai Patel , Mehmet Yavuz , Vansh Pal Singh Makh , Luca Blessent , Farhad Meshkati
CPC分类号： H04W56/0015
摘要： An access point (e.g., a femto cell) that is connected in an active call with an access terminal may cooperate with that access terminal or another access terminal to derive timing information from one or more neighboring access points (e.g., macro access points). In addition, an access point may cooperate with an idle access terminal to derive timing information from one or more neighboring access points. For example, an access terminal may determine the difference between pilot transmission timing or frame transmission timing of a femto cell and a macro cell, and report this timing difference to the femto cell. Based on this timing difference, the femto cell may adjust the timing and/or frequency of its transmissions so that these transmissions are synchronized in time and/or frequency as per network operation requirements.
摘要翻译： 以活动呼叫连接到接入终端的接入点（例如，毫微微小区）可以与该接入终端或另一接入终端协作以从一个或多个相邻接入点（例如，宏接入点）导出定时信息。 此外，接入点可以与空闲接入终端协作以从一个或多个相邻接入点导出定时信息。 例如，接入终端可以确定毫微微小区和宏小区的导频发送定时或帧发送定时之间的差异，并将该定时差报告给毫微微小区。 基于该定时差异，毫微微小区可以调整其传输的定时和/或频率，使得这些传输按照网络操作要求在时间和/或频率上同步。
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公开(公告)号：US20110281571A1
公开(公告)日：2011-11-17
申请号：US12947039
申请日：2010-11-16
IPC分类号： H04W56/00
CPC分类号： H04W56/0015
摘要： An access point (e.g., a femto cell) that is connected in an active call with an access terminal may cooperate with that access terminal or another access terminal to derive timing information from one or more neighboring access points (e.g., macro access points). In addition, an access point may cooperate with an idle access terminal to derive timing information from one or more neighboring access points. For example, an access terminal may determine the difference between pilot transmission timing or frame transmission timing of a femto cell and a macro cell, and report this timing difference to the femto cell. Based on this timing difference, the femto cell may adjust the timing and/or frequency of its transmissions so that these transmissions are synchronized in time and/or frequency as per network operation requirements.
摘要翻译： 以活动呼叫连接到接入终端的接入点（例如，毫微微小区）可以与该接入终端或另一接入终端协作以从一个或多个相邻接入点（例如，宏接入点）导出定时信息。 此外，接入点可以与空闲接入终端协作从一个或多个相邻接入点导出定时信息。 例如，接入终端可以确定毫微微小区和宏小区的导频发送定时或帧发送定时之间的差异，并将该定时差报告给毫微微小区。 基于该定时差异，毫微微小区可以调整其传输的定时和/或频率，使得这些传输按照网络操作要求在时间和/或频率上同步。
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5.发明申请公开(公告)号：US20050208959A1
公开(公告)日：2005-09-22
申请号：US10889926
申请日：2004-07-12
申请人： Tao Chen , Baaziz Achour , Brian Butler , Edward Tiedemann , Haitao Zhang , Keith Saints , Luca Blessent , Yongbin Wei
发明人： Tao Chen , Baaziz Achour , Brian Butler , Edward Tiedemann , Haitao Zhang , Keith Saints , Luca Blessent , Yongbin Wei
CPC分类号： H04W4/06 , H04L12/189 , H04W52/08 , H04W52/322 , H04W52/327 , H04W52/54 , H04W72/005
摘要： A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.
摘要翻译： 使用动态共享前向链路信道（或“数据”信道）将组播数据发送到一组无线设备，例如使用用于数据信道的公共长码掩码。 参考功率控制（PC）位也在数据通道上发送并用于信号质量估计。 共享的前向链路控制信道用于向各个无线设备发送用户特定的信令，例如对于每个无线设备使用时分多路复用（TDM）和唯一的长码掩码。 共享的前向链路指示符信道用于向无线设备发送反向链路（RL）PC比特，例如使用TDM。 数据通道由接收数据通道的所有无线设备共同供电控制。 控制和指示器通道由每个无线设备单独进行功率控制，使得在这些信道上为无线设备发送的信令和RL PC位被可靠地接收。
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公开(公告)号：US06594303B1
公开(公告)日：2003-07-15
申请号：US09228470
申请日：1999-01-11
IPC分类号： H04B169
CPC分类号： H04B1/707 , H04B2201/70701
摘要： Techniques for coherent demodulation in the presence of phase discontinuities is described. In the exemplary embodiment, times when phase discontinuities occur are known apriori by a receiver in which demodulation is being performed. In an alternate embodiment, the discontinuity location is signaled to the receiver in advance by the transmitter which generates the signals being demodulated. A pilot signal is prepared for optimal coherent demodulation by the use of two filters: one capable of withstanding the effects of phase discontinuity; a second providing superior filtering performance than the first so long as phase discontinuities are not present. Both filters are simultaneously operated. However, the superior performing filter is selected for use in demodulation whenever possible.
摘要翻译： 描述了存在相位不连续性的相干解调技术。 在示例性实施例中，发生相位不连续性的时间是正在执行解调的接收机所知道的。 在替代实施例中，不连续位置由产生被解调的信号的发射机预先发送给接收机。 通过使用两个滤波器来准备导频信号以实现最佳相干解调：一个能够承受相位不连续性的影响; 只要不存在相位不连续性，第二个提供比第一个优越的滤波性能。 两个过滤器同时运行。 然而，优选执行滤波器被选择用于解调，只要可能。
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公开(公告)号：US07471657B2
公开(公告)日：2008-12-30
申请号：US09934091
申请日：2001-08-20
申请人： Luca Blessent , Quaeed Motiwala
发明人： Luca Blessent , Quaeed Motiwala
IPC分类号： H04B7/216
CPC分类号： H04W52/20 , H04B1/7113 , H04B2201/70701 , H04L25/0224 , H04L2027/0046 , H04L2027/0065 , H04L2027/0093 , H04W52/143
摘要： The punctured pilot channel comprises information symbols of uncertain sign punctured into a sequence of pilot channel symbols of predetermined sign. The apparatus includes an information sign demodulation circuit for determining the sign of the information symbols in response to the pilot channel symbols. A continuous pilot generator generates a non-punctured pilot channel of predetermined sign from the information symbols and the pilot channel symbols. In a first embodiment, the information sign demodulator further comprises a dot product circuit for calculating a dot product of the pilot channel symbols and the punctured information symbols, and a threshold comparator for comparing the dot product to a predetermined threshold.
摘要翻译： 穿孔导频信道包括穿入预定符号的导频信道符号序列的不确定符号的信息符号。 该装置包括用于响应于导频信道符号确定信息符号的符号的信息符号解调电路。 连续导频发生器从信息符号和导频信道符号生成预定符号的未穿孔导频信道。 在第一实施例中，信息符号解调器还包括用于计算导频信道符号和穿孔信息符号的点积的点积电路，以及用于将点乘积与预定阈值进行比较的阈值比较器。
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公开(公告)号：US07016688B2
公开(公告)日：2006-03-21
申请号：US10435237
申请日：2003-05-09
IPC分类号： H04Q7/20
CPC分类号： H04W64/00 , G01S5/0226 , G01S5/0273 , G01S5/10 , G01S19/09 , G01S19/11 , G01S19/46 , H04B7/155 , H04B7/2606
摘要： A forward link repeater delay watermarking (FLRDWM) system and method that enable accurate position location of mobile stations in areas where repeaters are present by watermarking repeated signals with repeater information. A repeater watermarks a forward link signal with a (unique or non-unique) time delay modulation waveform watermark every time a signal passes through the repeater. A mobile station detects and/or identifies the time delay watermark on the forward link signal to determine repeater information that aids the network position determination entity or mobile station position location system in determining position location using AFLT and/or A-GPS systems. A forward link time delay watermarking system can be implemented to achieve low impact on FL and AFLT performance, favorable detection and identification probabilities, and short time-to-detect/identify.
摘要翻译： 一种前向链路中继器延迟水印（FLRDWM）系统和方法，其通过对具有中继器信息的重复信号进行水印来实现移动站在存在中继器的区域中的准确位置定位。 中继器每当信号通过中继器时对具有（唯一或非唯一）时间延迟调制波形水印的前向链路信号进行水印。 移动台在前向链路信号上检测和/或识别时间延迟水印，以确定使用AFLT和/或A-GPS系统帮助网络位置确定实体或移动台位置系统确定位置定位的中继器信息。 可以实现前向链路时间延迟水印系统，以实现对FL和AFLT性能的低影响，良好的检测和识别概率，以及短时间的检测/识别。
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9.发明授权System for measuring a rise-over-thermal characteristic in a communication network 有权用于测量通信网络中的上升热特性的系统公开(公告)号：US08139518B2
公开(公告)日：2012-03-20
申请号：US11179279
申请日：2005-07-12
CPC分类号： H04W52/343 , H04B17/382 , H04W24/02
摘要： A system for measuring a rise-over-thermal (RoT) characteristic in a communication network includes controlling a transmitting station to maintain its transmit power at a substantially constant level for a first time interval, and measuring a first received power level. The transmitting station is then controlled to adjust its transmit power by a selectable amount for a second time interval, and a second received power level is measured. The first and second received power levels are then processed to determine the RoT characteristic.
摘要翻译： 用于测量通信网络中的上升热（RoT）特性的系统包括控制发射台在第一时间间隔内将其发射功率维持在基本上恒定的水平，以及测量第一接收功率电平。 然后控制发送站，以便在第二时间间隔内以可选择的量调整其发射功率，并且测量第二接收功率电平。 然后处理第一和第二接收功率电平以确定RoT特性。
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10.发明申请System for measuring a rise-over-thermal characteristic in a communication network 有权用于测量通信网络中的上升热特性的系统公开(公告)号：US20060045045A1
公开(公告)日：2006-03-02
申请号：US11179279
申请日：2005-07-12
IPC分类号： H04Q7/00
CPC分类号： H04W52/343 , H04B17/382 , H04W24/02
摘要： A system for measuring a rise-over-thermal (RoT) characteristic in a communication network includes controlling a transmitting station to maintain its transmit power at a substantially constant level for a first time interval, and measuring a first received power level. The transmitting station is then controlled to adjust its transmit power by a selectable amount for a second time interval, and a second received power level is measured. The first and second received power levels are then processed to determine the RoT characteristic.
摘要翻译： 用于测量通信网络中的上升热（RoT）特性的系统包括控制发射台在第一时间间隔内将其发射功率维持在基本上恒定的水平，以及测量第一接收功率电平。 然后控制发送站，以便在第二时间间隔内以可选择的量调整其发射功率，并且测量第二接收功率电平。 然后处理第一和第二接收功率电平以确定RoT特性。
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