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1.发明专利
公开(公告)号：CA2516768C
公开(公告)日：2012-02-14
申请号：CA2516768
申请日：2004-02-24
Applicant: QUALCOMM INC
Inventor： NEUFELD ARTHUR JAMES , JOSHI ABHAY ARVIND , ANDRUS DON NIELSEN , GURSKI REMI JONATHAN , EKVETCHAVIT THUNYACHATE
Abstract: A novel and improved method and apparatus provide for controlling an operation of an access terminal while processing a signal from an access point in a communication system. Various aspects of the invention provide for an access terminal to disable a handoff process when its demodulator or decoder is operating to demodulate or decode a control message received from an access point. The operation of the access terminal is controlled in a manner that prevents terminating prematurely the demodulation and decoding process of a control signal by a handoff process. As a result, the access terminal may continue operating in a normal wake up/ sleep cycle period while conserving its battery power.
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2.发明专利
公开(公告)号：CA2516768A1
公开(公告)日：2004-09-10
申请号：CA2516768
申请日：2004-02-24
Applicant: QUALCOMM INC
Inventor： JOSHI ABHAY ARVIND , GURSKI REMI JONATHAN , ANDRUS DON NIELSEN , EKVETCHAVIT THUNYACHATE , NEUFELD ARTHUR JAMES
Abstract: A novel and improved method and apparatus provide for controlling an operation of an access terminal while processing a signal from an access point in a communication system. Various aspects of the invention provide for an access terminal to disable a handoff process when its demodulator or decoder is operating to demodulate or decode a control message received from an access point. The operation of the access terminal is controlled in a manner that prevents terminating prematurely the demodulation and decoding process of a control signal by a handoff process. As a result, the access terminal may continue operating in a normal wake up/ sleep cycle period while conserving its battery power.
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公开(公告)号：AU2003213824A1
公开(公告)日：2003-09-29
申请号：AU2003213824
申请日：2003-03-11
Applicant: QUALCOMM INC
Inventor： EKVETCHAVIT THUNYACHATE , SIH GILBERT CHRISTOPHER , PATEL SHIMMAN
Abstract: The velocity of a wireless communications device (WCD) (106) is estimated. In response to this estimate a power control command rate is determined. The WCD 106 transmits power control signals to a base station (102) according to the power control command rate. The power control command rate may be determined by mapping the estimated velocity to a velocity range, and selecting a rate that corresponds to the velocity range as the power control command rate. Velocity is estimated by measuring a level crossing rate of a multipath signal.
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公开(公告)号：CA2479013A1
公开(公告)日：2003-09-25
申请号：CA2479013
申请日：2003-03-11
Applicant: QUALCOMM INC
Inventor： PATEL SHIMMAN , EKVETCHAVIT THUNYACHATE , SIH GILBERT CHRISTOPHER
Abstract: The velocity of a wireless communications device (WCD) (106) is estimated. I n response to this estimate a power control command rate is determined. The WC D 106 transmits power control signals to a base station (102) according to the power control command rate. The power control command rate may be determined by mapping the estimated velocity to a velocity range, and selecting a rate that corresponds to the velocity range as the power control command rate. Velocity is estimated by measuring a level crossing rate of a multipath sign al.
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公开(公告)号：UA89750C2
公开(公告)日：2010-03-10
申请号：UA2005009031
申请日：2004-02-24
Applicant: QUALCOMM INC
Inventor： NEUFELD ARTHUR JAMES , JOSHI ABHAI ARVIND , ANDRUS DON NIELSEN , GURSKI REMI JONATHAM , EKVETCHAVIT THUNYACHATE
Abstract: Предложеныновыеи усовершенствованныеспособи устройстводляуправленияработойтерминаладоступавовремяобработкисигналаизточкидоступав системесвязи. Разныеаспектыизобретенияпредусматривают, чтотерминалудоступанужноблокироватьпоследовательностьоперацийперевода, когдаегодемодулятори декодердемодулируюти декодируютуправляющеесообщение, принятоеизточкидоступа. Работатерминаладоступаосуществляетсятакимобразом, которыйпредотвращаетпреждевременноепрекращениепоследовательностиоперацийдемодуляциии декодированиясигналауправленияпоследовательностьюоперацийперевода. Врезультате, терминалдоступаможетпродолжатьработув течениепериоданормальногозапуска/циклаожидания, нарядус сохранениемэнергииееаккумулятора.
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Patent Agency Ranking
公开(公告)号：DE60214052D1
公开(公告)日：2006-09-28
申请号：DE60214052
申请日：2002-11-26
Applicant: QUALCOMM INC
Inventor： EKVETCHAVIT THUNYACHATE , SINDHUSHAYANA T , GURELLI MEHMET , BLACK J
Abstract: A receiver system determines a current preamble threshold and a current preamble metric and determines whether a preamble is detected. If a preamble is detected, the receiver determines whether an earlier preamble has been detected in an earlier time slot having a common time slot interlace index, and resolves multiple detections of a preamble based on at least one of the current preamble and an old preamble thresholds, the current and an old preamble metrics. The receiver decodes data following the selected preamble and determines the CRC of the decoded data. If a CRC failure is detected, the receiver determines a new current preamble threshold. The new current preamble threshold is larger than the current preamble threshold. If the current preamble metric is larger than the new current preamble threshold, the receiver determines the CRC failure as an actual CRC failure, otherwise as a false CRC failure.
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7.发明专利
公开(公告)号：CA2516001A1
公开(公告)日：2004-08-26
申请号：CA2516001
申请日：2004-02-12
Applicant: QUALCOMM INC
Inventor： BLACK PETER J , EKVETCHAVIT THUNYACHATE , REZAIIFAR RAMIN
Abstract: Techniques to determine whether or not a terminal is under the coverage of a current wireless communication system (e.g., a packet data system) and to switch from the current system to another wireless communication system (e.g., a voice/data system). In one method, at least one measurement of at least one parameter for at least one base station in the current system is initially obtained. The measurement(s) may be SNR measurements. A metric is derived based on the mcasurcmcnt(s) and used (typically along with a metric threshold and a timer) to determine whether or not the terminal is within the coverage of the current system. A switch to another system is initiated if the terminal is deemed to be outside the coverage of the current system. The two systems provide at least one common service (e.g., packet data service).
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公开(公告)号：CA2434096A1
公开(公告)日：2002-08-01
申请号：CA2434096
申请日：2002-01-04
Applicant: QUALCOMM INC
Inventor： EKVETCHAVIT THUNYACHATE , KANG INYUP , VEDAM MARUTHY
Abstract: A multi-carrier filter for a wireless communications system employing a mult i- carrier signal. The multi-carrier filter includes a first mechanism for receiving the multi-carrier signal and extracting carrier signal components of the multi-carrier signal in response thereto. A second mechanism filters the carrier signal components and outputs a demodulated and filtered multi- bandwidth signal in response thereto. In the specific embodiment, the first mechanism includes a rotator. The multi-carrier signal is a 3x bandwidth mul ti- carrier signal having three carrier components. The three carrier components include a center carrier, a left carrier, and a right carrier. The center carrier, the left carrier, and the right carrier are separated by approximately 1.25 MHz. The rotator is a lookup table rotator that includes a mechanism for selectively rotating the multi-carrier-signal clockwise or counter clockwise and outputting the left carrier or the right carrier, respectively, in response thereto.
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公开(公告)号：AT553614T
公开(公告)日：2012-04-15
申请号：AT04714208
申请日：2004-02-24
Applicant: QUALCOMM INC
Inventor： NEUFELD ARTHUR , JOSHI ABHAY , ANDRUS DON , GURSKI REMI , EKVETCHAVIT THUNYACHATE
Abstract: A novel and improved method and apparatus provide for controlling an operation of an access terminal while processing a signal from an access point in a communication system. Various aspects of the invention provide for an access terminal to disable a handoff process when its demodulator or decoder is operating to demodulate or decode a control message received from an access point. The operation of the access terminal is controlled in a manner that prevents terminating prematurely the demodulation and decoding process of a control signal by a handoff process. As a result, the access terminal may continue operating in a normal wake up/ sleep cycle period while conserving its battery power.
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公开(公告)号：DE60214052T2
公开(公告)日：2007-03-29
申请号：DE60214052
申请日：2002-11-26
Applicant: QUALCOMM INC
Inventor： EKVETCHAVIT THUNYACHATE , SINDHUSHAYANA T , GURELLI MEHMET , BLACK J
Abstract: A receiver system determines a current preamble threshold and a current preamble metric and determines whether a preamble is detected. If a preamble is detected, the receiver determines whether an earlier preamble has been detected in an earlier time slot having a common time slot interlace index, and resolves multiple detections of a preamble based on at least one of the current preamble and an old preamble thresholds, the current and an old preamble metrics. The receiver decodes data following the selected preamble and determines the CRC of the decoded data. If a CRC failure is detected, the receiver determines a new current preamble threshold. The new current preamble threshold is larger than the current preamble threshold. If the current preamble metric is larger than the new current preamble threshold, the receiver determines the CRC failure as an actual CRC failure, otherwise as a false CRC failure.
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