专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP1503517A3 Method and apparatus for increasing receiver immunity to interference 失效
标题翻译：用于提高接收机的抗干扰信号的方法和装置
公开(公告)号：EP1503517A3
公开(公告)日：2005-02-09
申请号：EP04019499.5
申请日：1995-12-11
申请人： QUALCOMM INCORPORATED
发明人： Wheatley, Charles E., III , Peterzell, Paul E. , Kornfeld, Richard K. , Weiland, Ana L.
IPC分类号： H04B7/005 , H04B1/707 , H04B1/10 , H03G3/20 , H03G3/30
CPC分类号： H04W52/52 , H03F3/72 , H03F2203/7239 , H03G1/0088 , H03G3/3052 , H03G3/3068 , H04B1/109 , H04B1/70755 , H04B1/7097
摘要： The process of the present invention adjusts the input gain by a predetermined amount. The receiver processing measures the gain change in the IF signal power. If the change is less than the predetermined amount, the CDMA signal and jammers are below the noise floor and, therefore, the gain is increased. If the IF signal power change is equal to the predetermined amount, the CDMA signal is above the noise floor and the interference is minimal. Therefore, in this case, gain adjustment is not necessary, but increasing gain will improve sensitivity. If the IF signal power change is greater than the predetermined amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used until the receiver is operating at the best compromise between interference and noise figure.
摘要翻译：增加一个无线电接收机的免疫力对无线电频率干扰的装置，所述无线电接收器处接收的信号，所述装置包括：耦合到所述接收到的信号，具有打开位置和闭合位置的开关（1105）的开关（1105）; 一个电阻（1101）时，电阻的第一端部（1101）被耦合到所述开关（1105）和所述电阻（1101）的第二端部的闭合位置被耦合到地电势; 在放大器（1101），其具有耦合到所述开关（1105），用于在输出处放大的接收信号生成的打开位置的输入; 耦合到所述开关（1105）的控制器，用于切换开关（1105）到所述闭合位置，响应于所接收到的信号超过预定的功率电平，所述接收到的信号传导通过所述开关（1105）和所述电阻（1101）到当接地电位，所述开关（1105）是在所述关闭位置; 和所述电阻（1101）在输入端产生阻抗失配的给放大器。所述（1110），当所述开关（1105）处于关闭位置，从而减少了发表的所述放大器（1110）的增益。

2. 发明公开

EP2104244A3 System and method for synchronization in a wireless communication system 有权
标题翻译：系统和方法，用于同步在一个无线通信系统
公开(公告)号：EP2104244A3
公开(公告)日：2010-08-04
申请号：EP09165341.0
申请日：1999-12-03
申请人： Qualcomm Incorporated
发明人： Wallace, Mark S. , Tiedemann, Edward G, Jr. , Wheatley, Charles E., III , Waltson, Rod J. c/o QUALCOMM Incorporated , Howard, Steven J.
IPC分类号： H04B7/26
CPC分类号： H04B7/2696
摘要： When insufficient traffic is present in the network to maintain synchronization in this manner, other methods must be used. One approach involves making direct measurements of the timing between base stations (602, 604). This is accomplished in one of two ways. The base may interrupt its transmissions on all sectors for a short interval during which it determines the time of arrival of signals from other base stations (602, 604). Given knowledge of the other base station locations, time errors relative to all other base stations (602, 604) may be derived. Alternatively, the base may send a short signal at high power in the mobile transmit band. This time-of-arrival of this signal is measured by the surrounding base stations and the time errors between pairs of base stations are computed. In some cases, a base station (602, 604) may be isolated sufficiently from all other base stations in the network such that direct base-to-base measurement is not viable. In this case, a fixed mobile (606) is placed at a location in the handoff region between the isolated cell and another cell in the network. The fixed mobile (606) either performs measurements of base station pilots on command of the base and reports the timing information, or sends a burst transmission at a specified time and power level to be measured by the base stations.

3. 发明公开

EP1361675A2 Method and apparatus for performing power control in a mobile communication system 失效
标题翻译：移动通讯系统中的Verfahren und Vorrichtung zur Leistungsregelung
公开(公告)号：EP1361675A2
公开(公告)日：2003-11-12
申请号：EP03017698.6
申请日：1996-03-29
申请人： QUALCOMM INCORPORATED
发明人： Tiedemann, Edward G., Jr. , Odenwalder, Joseph P. , Wheatley, Charles E., III , Padovani, Roberto
IPC分类号： H04B7/005
CPC分类号： H04W52/362 , H04W52/08 , H04W52/20 , H04W52/228 , H04W52/247 , H04W52/28 , H04W52/282 , H04W52/283 , H04W52/367 , H04W52/50 , H04W52/60
摘要： A method and apparatus for controlling transmission power in a mobile communication system is disclosed. The method disclosed provides for a closed-loop power control method. The method comprises the steps of determining a characteristic of a propagation path between a first communication station and a second communication station; selecting a power control step size in accordance with said characteristic of the propagation path; receiving closed loop power control commands at said first communication station; and adjusting said transmission power of said first communication station in accordance with said closed loop power control commands and said power control step size.
摘要翻译：公开了一种用于控制移动通信系统中的发射功率的方法和装置。所公开的方法提供了一种闭环功率控制方法。该方法包括以下步骤：确定第一通信站和第二通信站之间的传播路径的特性; 根据所述传播路径的所述特性来选择功率控制步长; 在所述第一通信站处接收闭环功率控制命令; 以及根据所述闭环功率控制命令和所述功率控制步长调整所述第一通信站的所述发射功率。

4. 发明公开

EP2194658A2 Method and apparatus for forward power control in a communication system 审中-公开
标题翻译：通信系统中前向功率控制的方法和装置
公开(公告)号：EP2194658A2
公开(公告)日：2010-06-09
申请号：EP10157112.3
申请日：2001-12-27
申请人： Qualcomm Incorporated
发明人： Wheatley, Charles E., III , Attar, Rashid A. , Esteves, Eduardo A. S.
IPC分类号： H04B7/005
CPC分类号： H04W52/24 , H04W52/26 , H04W52/267 , H04W52/286 , H04W68/00 , H04W72/1231
摘要： In a method for packet data transmission from at least one Access Point to an Access Terminal, data request messages are received from a plurality of Access Terminals. A transmission of data from the Access Terminal having the highest ratio of requested data rate to average served rate is scheduled, and an Access Point transmits data at a randomly varying transmit power, or at a transmit power in synchronism with neighbouring Access Points, in accordance with the data request message.
摘要翻译：在用于从至少一个接入点到接入终端的分组数据传输的方法中，从多个接入终端接收数据请求消息。根据所请求的数据速率与平均服务速率之比最高的接入终端的数据传输被调度，并且接入点以随机变化的发射功率或与相邻接入点同步的发射功率发射数据与数据请求消息一起。

5. 发明公开

EP1487130A3 Power and rate control in a code division multiple access system 失效
标题翻译： Leistungs- und Datenratensteuerung in einem System mit Vielfachzugriff durch Kodetrennung
公开(公告)号：EP1487130A3
公开(公告)日：2005-02-09
申请号：EP04021932.1
申请日：1994-11-22
申请人： QUALCOMM Incorporated
发明人： Wheatley, Charles E., III , Padovani, Roberto , Zehavi, Ephraim
IPC分类号： H04B7/005 , H04L1/00
CPC分类号： H04L1/0059 , H03M13/23 , H04L1/0015 , H04L1/0019 , H04L1/0025 , H04L1/0027 , H04L1/0041 , H04L1/0046 , H04L1/0054 , H04L1/0068 , H04L1/0069 , H04L1/0071 , H04L1/08 , H04W52/20 , H04W52/267
摘要： Method for communicating data between a mobile station and a base station where at least one of the encoding rate, amount of data and modulation format are selected based on an effective link budget for the transmission of data between the mobile station and the base station. The effective link budget includes a parameter indicating transmission at a determined power level.
摘要翻译：本发明的功率控制过程使得移动无线电话机能够在所需的功率输出上持续更新基站。基站以特定速率向移动台发送帧。如果移动台正确接收并解码帧，则在下一帧中设置要发送到基站的功率控制位。基于接收功率控制比特的错误率，基站确定是增加还是降低发射功率。

6. 发明授权

EP1104955B1 System and method for generating signal waveforms in a CDMA cellular telephone system 失效
标题翻译：装置和方法用于在CDMA蜂窝电话系统中产生信号波形
公开(公告)号：EP1104955B1
公开(公告)日：2004-06-09
申请号：EP01103642.3
申请日：1991-06-21
申请人： QUALCOMM Incorporated
发明人： Gilhousen, Klein S. , Weaver, Lindsay A., Jr. , Jacobs, Irwin M. , Wheatley, Charles E., III , Padovani, Roberto , Viterbi, Andrew J.
IPC分类号： H04B1/707 , H04B7/26
CPC分类号： H04L1/0002 , H04B1/3888 , H04B1/707 , H04B1/70757 , H04B1/709 , H04B1/7115 , H04B7/2618 , H04B7/2628 , H04B7/2637 , H04B2201/70701 , H04B2201/70703 , H04J13/0022 , H04J13/0048 , H04J13/10 , H04J13/107 , H04J13/18 , H04L1/0006 , H04L1/0046 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04W52/26 , Y02D50/10
摘要： 1. A modulation system for use in spread spectrum communications, comprising: means for generating a first orthogonal sequence signal corresponding to a selected one of a plurality of orthogonal binary sequences; means for generating a pseudo-noise (PN) signal corresponding to a predetermined PN binary sequence; means for combining said first orthogonal sequence signal and said PN signal and for providing a resultant first modulation signal. 2. The system of 1 further comprising additional means for combining said first modulation signal with an input information signal and for providing a resultant spread spectrum information signal. 3. The system of 1 wherein said plurality of orthogonal binary sequences are Walsh sequences. 4. The system of 1 wherein said PN sequence is an augmented length maximal linear sequence PN code.

7. 发明公开

EP2259437A2 Method and apparatus for a pilot search using a matched filter 审中-公开
标题翻译：用于通过信号来搜索导频信号的方法和装置是合适的几十滤波器
公开(公告)号：EP2259437A2
公开(公告)日：2010-12-08
申请号：EP10010370.4
申请日：2000-11-28
申请人： Qualcomm Incorporated
发明人： Wheatley, Charles E., III , Maloney, John E.
IPC分类号： H04B1/707
CPC分类号： H04B1/7075 , H04B1/7093 , H04B2201/70701
摘要： The present invention includes a cellular pilot signal detector (210) or searcher for use in a cellular mobile communications unit. The signal detector uses a matched filter (212) to detect a pilot signal transmitted from a cellular base station. The matched filter includes a plurality of taps and a plurality of delays located between adjacent taps. The signal components of a received digital signal are held on the taps of the matched filter by the delays. The matched filter compares the signal components of the received signal to an expected or searched for digital pattern. The matched filter puts out a relatively large signal if the received digital signal matches the expected digital pattern. The matched filter can also be used in parallel with a correlator (216).

8. 发明授权

EP1094644B1 Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system 失效
标题翻译：用于与码分多址移动电话蜂窝系统控制传输功率的方法和设备
公开(公告)号：EP1094644B1
公开(公告)日：2009-06-24
申请号：EP00125802.9
申请日：1992-05-17
申请人： QUALCOMM INCORPORATED
发明人： Gilhousen, Klein S. , Padovani, Roberto , Wheatley, Charles E., III , Weaver, Lindsay A. Jr. , Blakeney, Robert D., II
IPC分类号： H04B7/005
CPC分类号： H04W52/40 , H04B7/0671 , H04B7/2628 , H04W52/0245 , H04W52/06 , H04W52/08 , H04W52/10 , Y02D70/21 , Y02D70/444 , Y02D70/449
摘要： A cellular communication system in which a system user and another user communicate with each other by way of information carrying spread spectrum modulated signals transmitted via a cell-site in which system: the system user comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said cell-site, a receiver for receiving information carrying spread spectrum modulated signals from said cell-site and means for measuring signal quality in said information carrying spread spectrum modulated signals received by the system user; the cell-site comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said system user, a receiver for receiving information carrying spread spectrum modulated signals from said system user and adjusting means for adjusting the power of information carrying spread spectrum modulated signals transmitted from the cell-site ; and power control means is provided for controlling the transmission power of the information carrying spread spectrum modulated signals by measuring the signal power in the information carrying spread spectrum modulated signals received by the system user and transmitting data representing the measured power to the cell-site by way of the information carrying spread spectrum modulated signals, the adjusting means being responsive to the data in the information carrying spread spectrum modulated signals from the system user to adjust the power in the information carrying spread spectrum modulated signals transmitted by the cell-site.

9. 发明公开

EP1503517A2 Method and apparatus for increasing receiver immunity to interference 失效
标题翻译：提高接收机免受干扰的方法和设备
公开(公告)号：EP1503517A2
公开(公告)日：2005-02-02
申请号：EP04019499.5
申请日：1995-12-11
申请人： QUALCOMM INCORPORATED
发明人： Wheatley, Charles E., III , Peterzell, Paul E. , Kornfeld, Richard K. , Weiland, Ana L.
IPC分类号： H04B7/005
CPC分类号： H04W52/52 , H03F3/72 , H03F2203/7239 , H03G1/0088 , H03G3/3052 , H03G3/3068 , H04B1/109 , H04B1/70755 , H04B1/7097
摘要： The process of the present invention adjusts the input gain by a predetermined amount. The receiver processing measures the gain change in the IF signal power. If the change is less than the predetermined amount, the CDMA signal and jammers are below the noise floor and, therefore, the gain is increased. If the IF signal power change is equal to the predetermined amount, the CDMA signal is above the noise floor and the interference is minimal. Therefore, in this case, gain adjustment is not necessary, but increasing gain will improve sensitivity. If the IF signal power change is greater than the predetermined amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used until the receiver is operating at the best compromise between interference and noise figure.
摘要翻译：本发明的过程将输入增益调整预定量。接收器处理测量IF信号功率的增益变化。如果变化小于预定量，则CDMA信号和干扰信号低于本底噪声，因此增益增加。如果IF信号功率变化等于预定量，则CDMA信号高于本底噪声并且干扰最小。因此，在这种情况下，增益调整不是必需的，但增加增益会提高灵敏度。如果IF信号功率变化大于预定量，则干扰是明显的，并且增益减小以减少互调产物。这个过程被使用，直到接收器在干扰和噪声系数之间达到最佳折衷为止。

10. 发明公开

EP1487130A2 Power and rate control in a code division multiple access system 失效
标题翻译： Leistungs- und Datenratensteuerung in einem System mit Vielfachzugriff durch Kodetrennung
公开(公告)号：EP1487130A2
公开(公告)日：2004-12-15
申请号：EP04021932.1
申请日：1994-11-22
申请人： QUALCOMM Incorporated
发明人： Wheatley, Charles E., III , Padovani, Roberto , Zehavi, Ephraim
IPC分类号： H04B7/005 , H04L1/00
CPC分类号： H04L1/0059 , H03M13/23 , H04L1/0015 , H04L1/0019 , H04L1/0025 , H04L1/0027 , H04L1/0041 , H04L1/0046 , H04L1/0054 , H04L1/0068 , H04L1/0069 , H04L1/0071 , H04L1/08 , H04W52/20 , H04W52/267
摘要： Method for communicating data between a mobile station and a base station where at least one of the encoding rate, amount of data and modulation format are selected based on an effective link budget for the transmission of data between the mobile station and the base station. The effective link budget includes a parameter indicating transmission at a determined power level.
摘要翻译：用于在移动台和基站之间传送数据的方法，其中基于用于移动台和基站之间的数据传输的有效链路预算来选择编码速率，数据量和调制格式中的至少一个。有效链路预算包括指示在确定的功率电平下的传输的参数。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式