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公开(公告)号：AT448602T
公开(公告)日：2009-11-15
申请号：AT01916349
申请日：2001-03-02
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED , SIMIC EMILIJA , WILBORN THOMAS , ZHANG HAITAO , FILIPOVIC DANIEL , KAUFMAN RALPH , LIN JIAN
Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.
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公开(公告)号：AT422741T
公开(公告)日：2009-02-15
申请号：AT05107468
申请日：2001-08-07
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED
Abstract: A method and apparatus for calibrating a Base Station and Mobile Station for use in systems that use round trip delay and systems that do not use round trip delay.
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公开(公告)号：DE60124406T2
公开(公告)日：2007-10-04
申请号：DE60124406
申请日：2001-08-07
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED
Abstract: A method and apparatus for calibrating a Base Station and Mobile Station for use in systems that use round trip delay and systems that do not use round trip delay.
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公开(公告)号：DE60124406D1
公开(公告)日：2006-12-21
申请号：DE60124406
申请日：2001-08-07
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED
Abstract: A method and apparatus for calibrating a Base Station and Mobile Station for use in systems that use round trip delay and systems that do not use round trip delay.
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45.发明专利
公开(公告)号：AU2002248154B2
公开(公告)日：2006-06-15
申请号：AU2002248154
申请日：2001-11-14
Applicant: QUALCOMM INC
Inventor： RICK ROLAND , AMERGA MESSAY , PATRICK CHRISTOPHER , ROWITCH DOUGLAS N , YOUNIS SAED
Abstract: Techniques to detect whether or not a remote terminal is under the coverage of a repeater within a wireless communication network, which may be based on (1) a list of base stations expected to be received while under the repeater's coverage, (2) the characterized environment of the repeater, and/or (3) the propagation delays for a transmission received at the remote terminal. Additional ambiguity resulting from being under a repeater's coverage may also be accounted for and/or compensated by (1) discarding time measurements from repeated base stations, (2) adjusting the processing for position estimation to account for the additional ambiguity due to the repeater, (3) computing a series of position estimates based on multiple transmissions received from the same originating base station and selecting the best estimate, and/or (4) computing a series of position estimates based on multiple transmissions from multiple originating base stations and selecting the best estimate.
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Patent Agency Ranking
公开(公告)号：HK1063507A1
公开(公告)日：2004-12-31
申请号：HK04106234
申请日：2004-08-20
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED
Abstract: A system and method for providing timing information to a wireless device in a position determination system is disclosed. A wireless device includes a reference signal receiver, a signal processor, a wireless communications transceiver and a GPS receiver. The wireless device is adapted to receive a reference signal, extract a snippet of the received reference signal, determine a time of reception for the snippet and transmit the snippet and time of reception to a position determination entity as part of a request for GPS aiding information. The position determination entity includes a timing source, a GPS memory for storing GPS satellite information, a reference signal memory, a communications interface, a signal processor and a control processor. The position determination entity is adapted to continually receive and store a reference signal along with an associated time of reception, and receive the snippet and timestamp transmitted from the wireless device. The position determination entity is further adapted to match the signal snippet to a portion of the stored reference signal, determine a time offset between the timestamp and the time of reception of the matched portion of the stored reference signal, prepare aiding information for the wireless device, synchronize the aiding information to the wireless device using the time offset, and transmit the synchronized aiding information to the wireless device. The wireless device is further adapted to receive the aiding information, including timing information to assist the wireless device in acquiring the GPS signals.
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公开(公告)号：CA2621145A1
公开(公告)日：2001-09-13
申请号：CA2621145
申请日：2001-03-02
Applicant: QUALCOMM INC
Inventor： LIN MING JASON YU , WILBORN THOMAS , FILIPOVIC DANIEL , KAUFMAN RALPH , YOUNIS SAED , ZHANG HAITAO , SIMIC EMILIJA
Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.
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公开(公告)号：CA2401891A1
公开(公告)日：2001-09-13
申请号：CA2401891
申请日：2001-03-02
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED , WILBORN THOMAS , SIMIC EMILIJA , LIN JIAN , KAUFMAN RALPH , ZHANG HAITAO , FILIPOVIC DANIEL
Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption , lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated . A gain control mechanism allows for accurate adjustment of the output transm it power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains o f the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.
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49.发明申请
公开(公告)号：WO0167591A9
公开(公告)日：2003-01-09
申请号：PCT/US0106803
申请日：2001-03-02
Applicant: QUALCOMM INC
Inventor： YOUNIS SAED , SIMIC EMILIJA , WILBORN THOMAS
CPC classification number: H03F3/24 , H03F2200/331 , H03G3/3036 , H03M3/374 , H03M3/50 , H03M7/3031
Abstract: An interface circuit for converting a digital signal to an analog signal. The interface circuit includes a time response adjustment circuit, a modulator, and a filter. The time response adjustment circuit receives the digital signal and generates an adjusted signal. The modulator couples to the time response adjustment circuit, receives the adjusted signal, and generates a modulator signal. The filter couples to the modulator, receives the modulator signal, and generates the analog signal. The analog signal has a time response that is modified by the time response adjustment circuit. In an embodiment, the time response adjustment circuit includes a gain element, a delay element, and a summer. The gain element receives and scales the digital signal by a scaling factor. The delay element receives and delays the digital signal by a time delay. The summer couples to the gain element and the delay element, sums the scaled signal from the gain element and the delayed signal from the delay element to generate the adjusted signal.
Abstract translation: 一种用于将数字信号转换为模拟信号的接口电路。 接口电路包括时间响应调整电路，调制器和滤波器。 时间响应调整电路接收数字信号并产生调整信号。 调制器耦合到时间响应调整电路，接收经调整的信号，并产生调制器信号。 滤波器耦合到调制器，接收调制器信号，并产生模拟信号。 模拟信号具有由时间响应调整电路修改的时间响应。 在一个实施例中，时间响应调整电路包括增益元件，延迟元件和加法器。 增益元件以缩放因子接收和缩放数字信号。 延迟元件接收并延迟数字信号延时。 加法器与增益元件和延迟元件耦合，将来自增益元件的定标信号和来自延迟元件的延迟信号相加，以产生调整后的信号。
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50.发明申请POSITION DETERMINATION IN A WIRELESS COMMUNICATION SYSTEM WITH DETECTION AND COMPENSATION FOR REPEATERS 审中-公开无线通信系统中的位置确定及其检测和补偿
公开(公告)号：WO02059638A3
公开(公告)日：2002-12-27
申请号：PCT/US0145458
申请日：2001-11-14
Applicant: QUALCOMM INC
Inventor： AMERGA MESSAY , PATRICK CHRISTOPHER , RICK ROLAND , ROWITCH DOUGLAS N , YOUNIS SAED
CPC classification number: H04W64/00 , G01S5/0273 , G01S19/06 , G01S19/46 , H04B7/2606
Abstract: Techniques to detect whether or not a remote terminal is under the coverage of a repeater within a wireless communication network, which may be based on (1) a list of base stations expected to be received while under the repeater's coverage, (2) the characterized environment of the repeater, and/or (3) the propagation delays for a transmission received at the remote terminal. Additional ambiguity resulting from being under a repeater's coverage may also be accounted for and/or compensated by (1) discarding time measurements from repeated base stations, (2) adjusting the processing for position estimation to account for the additional ambiguity due to the repeater, (3) computing a series of position estimates based on multiple transmissions received from the same originating base station and selecting the best estimate, and/or (4) computing a series of position estimates based on multiple transmissions from multiple originating base stations and selecting the best estimate.
Abstract translation: 用于检测远程终端是否处于无线通信网络中的中继器覆盖范围内的技术，这可以基于（1）在中继器覆盖范围内期望接收的基站列表，（2）特征 和/或（3）在远程终端接收的传输的传播延迟。 （1）丢弃来自重复基站的时间测量，（2）调整用于位置估计的处理以说明由于中继器引起的额外的不明确性，还考虑和/或补偿由于处于中继器的覆盖范围而导致的额外的模糊性， （3）基于从相同发起基站接收的多个传输并选择最佳估计来计算一系列位置估计，和/或（4）基于来自多个始发基站的多个传输来计算一系列位置估计，并且选择 最好的估计。
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