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22.发明专利
公开(公告)号：HK1071349A1
公开(公告)日：2005-07-15
申请号：HK05104197
申请日：2001-02-09
Applicant: QUALCOMM INC
Inventor： BUTLER BRIAN , GILHOUSEN KLEIN
IPC: H04B7/26 , H04L1/00 , H04W4/12 , H04W48/12 , H04W52/02 , H04W68/00 , H04W68/02 , H04W68/08 , H04W76/02 , H04W84/04 , H04W84/08
Abstract: The method pages (fig 2) a wireless terminal in a wireless telecommunications system and transmits a quick page message via a less encoded channel and generates a full page message via a more encoded channel. The quick page massege contains less information than the full page message. The quick page message is for notifying the wireless terminal to begin processing for the full page message, and comprises a single bit of data. The full page message is transmitted during a second time slot assigned to the wireless terminal that occurs after the first time slot.
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23.发明专利
公开(公告)号：HK1067251A1
公开(公告)日：2005-04-01
申请号：HK04110240
申请日：2004-12-24
Applicant: QUALCOMM INC
Inventor： LEVIN JEFFREY , WILBORN THOMAS , BUTLER BRIAN , BENDER PAUL
IPC: H04B20060101
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公开(公告)号：HK1053201A1
公开(公告)日：2003-10-10
申请号：HK03105374
申请日：2003-07-25
Applicant: QUALCOMM INC
Inventor： AGRAWAL AVNEESH , SIH GILBERT , ROH MARK , BUTLER BRIAN , CHALLA RAGHU
IPC: H04B1/712 , H04B1/7073 , H04B1/7087 , H04B1/7115 , H04B1/7117 , H04L27/00 , H04B , H04L
Abstract: A method and apparatus for frequency tracking is described. The present invention provides a tracking mechanism for removing the effects of error due to frequency offset as well as compensation for frequency error due to doppler in a plurality of multipath signals. Each finger of a RAKE receiver utilizing the present invention will compute a frequency error for that finger. The weighted average of all of these frequency errors is calculated and filtered to provide a control signal for varying the frequency of IF and RF frequency synthesizers, accounting for the common frequency offset seen at each finger. Additionally, each finger is equipped with a rotator for providing frequency adjustment specific to that finger. The frequency of each finger is adjusted through feedback of the frequency error for that finger.
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公开(公告)号：AT218777T
公开(公告)日：2002-06-15
申请号：AT98954979
申请日：1998-10-14
Applicant: QUALCOMM INC
Inventor： SILBERGER AMNON , BUTLER BRIAN , SCHIFF LEONARD
Abstract: A method and apparatus for accurately determining the operating characteristics or impact of nonlinear effects on devices or communication systems transferring orthogonally coded spread-spectrum communication signals. A Walsh Power Ratio, is used to more accurately determine system response. This information can be used by power control loops in controlling or adjusting the operation of nonlinear elements or stages such as high power amplifiers in orthogonal CDMA communication systems to provide improved system response. The information can also be employed in assigning channels to systems users, and to proceed with physical changes to system hardware. The measurements used to formulate the WPR can be made to individual components or to entire systems by injecting communication signals in multiple channels containing data, and leaving at least one empty channel. The received power per channel on the output side of the system or device is then measured. A ratio of power density for the empty to the active channels is then formed. The determination of WPR for a system or components can be realized during periods of operation through periodic transfer of test signals either at allocated times or by interleaving among existing traffic signals in the system.
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Patent Agency Ranking
公开(公告)号：BR9813026A
公开(公告)日：2000-08-15
申请号：BR9813026
申请日：1998-10-09
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , BUTLER BRIAN , SKINNER GORDON
IPC: H04J13/12 , H04B1/707 , H04B1/7075 , H04B1/7077 , H04B7/216 , H04J13/00
Abstract: A technique for spreading information signals in a spread spectrum communication system to provide increased signal acquisition speed. A first PN spreading code or code set is used to spread information signals along with a second PN spreading code sequence or function. The second PN code is synchronized with the first PN spreading code, but has a larger code period so that each code chip of the second PN code extends over the entire period of the first PN code. The longer period spreading code forms an outer code which helps provide unambiguous beam identification and easily acquired frame timing in the presence of dynamically changing signal path delay, improving signal acquisition.
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公开(公告)号：CA2337992A1
公开(公告)日：2000-02-03
申请号：CA2337992
申请日：1999-07-21
Applicant: QUALCOMM INC
Inventor： BUTLER BRIAN , KERNS ARTHUR S , CHOCKALINGAM ANANTHANARAYANAN , MARSH GENE W , GROVER DOUGLAS , GROB MATTHEW S , DETERMAN JAMES T , STEWART RICHARD A , ANTONIO FRANKLIN P , BJEREDE MARIE M , SCHIFF LEONARD N , AMES WILLIAM G
Abstract: Method for reducing call dropping rates in a multi-beam communication system that includes a user terminal, a gateway, and a plurality of beam sources projecting a plurality of beams, and where a link between the user terminal and the gateway is established on one or more beams. The method relies on a messaging protocol between the gateway and the user. Based on messages sent from the user to the gateway, preferably on a preselected periodic basis, th e gateway determines the more desirable beam(s) for transmitting to the user. The messages sent from the user to the gateway contain values representing beam strengths as measured at the user. The gateway uses the user measured beam strengths to select the beams that should be used for the user. The bea ms to be used are the beams that will decrease the call dropping rates and provide a desired level of beam source diversity.
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公开(公告)号：AU1270299A
公开(公告)日：1999-05-03
申请号：AU1270299
申请日：1998-10-09
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , BUTLER BRIAN , SKINNER GORDON DI
IPC: H04J13/12 , H04B1/707 , H04B1/7075 , H04B1/7077 , H04B7/216 , H04J13/00
Abstract: A technique for spreading information signals in a spread spectrum communication system to provide increased signal acquisition speed. A first PN spreading code or code set is used to spread information signals along with a second PN spreading code sequence or function. The second PN code is synchronized with the first PN spreading code, but has a larger code period so that each code chip of the second PN code extends over the entire period of the first PN code. The longer period spreading code forms an outer code which helps provide unambiguous beam identification and easily acquired frame timing in the presence of dynamically changing signal path delay, improving signal acquisition.
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公开(公告)号：CA2305718C
公开(公告)日：2010-12-07
申请号：CA2305718
申请日：1998-10-09
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , BUTLER BRIAN , SKINNER GORDON
IPC: H04J13/12 , H04B1/707 , H04B1/7075 , H04B1/7077 , H04B7/216 , H04J13/00
Abstract: A technique for spreading information signals in a spread spectrum communication system to provide increased signal acquisition speed. A first PN spreading code or code set is used to spread information signals along with a second PN spreading code sequence or function. The second PN code is synchronized with the first PN spreading code, but has a larger code period so that each code chip of the second PN code extends over the entire period of the first PN code. The longer period spreading code forms an outer code which helps provide unambiguous beam identification and easily acquired frame timing in the presence of dynamically changing signal path delay, improving signal acquisition.
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公开(公告)号：DK0985325T3
公开(公告)日：2007-09-03
申请号：DK98924967
申请日：1998-05-29
Applicant: QUALCOMM INC
Inventor： GILHOUSEN KLEIN S , BUTLER BRIAN
IPC: H04B7/26 , H04L1/00 , H04W4/12 , H04W48/12 , H04W52/02 , H04W68/00 , H04W68/02 , H04W68/08 , H04W76/02 , H04W84/04 , H04W84/08
Abstract: The method pages (fig 2) a wireless terminal in a wireless telecommunications system and transmits a quick page message via a less encoded channel and generates a full page message via a more encoded channel. The quick page massege contains less information than the full page message. The quick page message is for notifying the wireless terminal to begin processing for the full page message, and comprises a single bit of data. The full page message is transmitted during a second time slot assigned to the wireless terminal that occurs after the first time slot.
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