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公开(公告)号：AU2003217856A1
公开(公告)日：2003-09-09
申请号：AU2003217856
申请日：2003-02-27
Applicant: QUALCOMM INC
Inventor： AMERGA MESSAY , LIN JEREMY , SHIU DA-SHAN , TEAGUE EDWARD HARRISON
Abstract: Techniques for tracking closely spaced multipath and preventing finger merge without monitoring relative positions between each of a plurality of fingers are disclosed. In one aspect, motion limits are determined for each finger. Time-tracking commands that would move the position of a finger outside its respective motion limits are suppressed. In another aspect, motion limits are updated dynamically, the motion limits of each finger determined in accordance with the motion limits of fingers adjacent to it. Various other aspects are also presented. These aspects have the benefit of preventing finger merge, which allows the allocation of multiple fingers to closely spaced multipath, thus increasing performance and system capacity, and mitigating misallocation of system resources.
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公开(公告)号：DE60305655D1
公开(公告)日：2006-07-06
申请号：DE60305655
申请日：2003-02-27
Applicant: QUALCOMM INC
Inventor： TEAGUE EDWARD HARRISON , AMERGA MESSAY , LIN JEREMY , SHIU DA-SHAN
Abstract: Techniques for tracking closely spaced multipath and preventing finger merge without monitoring relative positions between each of a plurality of fingers are disclosed. In one aspect, motion limits are determined for each finger. Time-tracking commands that would move the position of a finger outside its respective motion limits are suppressed. In another aspect, motion limits are updated dynamically, the motion limits of each finger determined in accordance with the motion limits of fingers adjacent to it. Various other aspects are also presented. These aspects have the benefit of preventing finger merge, which allows the allocation of multiple fingers to closely spaced multipath, thus increasing performance and system capacity, and mitigating misallocation of system resources.
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公开(公告)号：AT526806T
公开(公告)日：2011-10-15
申请号：AT09728549
申请日：2009-03-20
Applicant: QUALCOMM INC
Inventor： SAMPATH HEMANTH , PALANKI RAVI , LIN JEREMY , KADOUS TAMER
IPC: H04W52/02
Abstract: A method and apparatus are presented for compensating drifts in access terminals occurring during a sleep time. The method includes determining whether a sleep time exceeds a threshold, buffering time domain samples containing acquisition pilots and a paging channel, powering down RF circuitry in the access terminal after buffering samples, processing the samples to compensate for drift, and determining whether the access terminal was paged based upon the processed samples. The apparatus includes a digital front end, an FFT engine coupled to the digital front end, a symbol buffer coupled to the FFT engine, a processor coupled to the digital front end, FFT engine, and symbol buffer, and a memory coupled to the processor, the memory further comprising instructions for executing the method.
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公开(公告)号：ES2263964T3
公开(公告)日：2006-12-16
申请号：ES03713825
申请日：2003-02-27
Applicant: QUALCOMM INC
Inventor： TEAGUE EDWARD HARRISON , AMERGA MESSAY , LIN JEREMY , SHIU DA-SHAN
Abstract: Procedimiento para realizar el seguimiento temporal de una pluralidad de demoduladores, adecuado para asignar a diversos demoduladores trayectorias múltiples poco espaciadas, presentando cada demodulador un movimiento limitado entre un límite de adelanto y un límite de atraso, que comprende las etapas siguientes: adelantar el límite de atraso de un primer demodulador adyacente a un segundo demodulador y situado por delante de éste, y el límite de adelanto de un tercer demodulador adyacente al segundo demodulador y situado por detrás de éste, cuando se envía un mandato de adelanto al segundo demodulador y atrasar el límite de atraso del primer demodulador y el límite de adelanto del tercer demodulador cuando se envía un mandato de atraso al segundo demodulador, siendo determinados los límites de adelanto y atraso de cada demodulador de acuerdo con los límites de adelanto o atraso de los demoduladores adyacentes.
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公开(公告)号：AT417414T
公开(公告)日：2008-12-15
申请号：AT02731636
申请日：2002-05-03
Applicant: QUALCOMM INC
Inventor： AGRAWAL AVNEESH , LIN JEREMY
IPC: H04B1/7115 , H04B1/7117
Abstract: Techniques for increased finger demodulation capability in a hardware efficient manner are disclosed. In one aspect, I and Q samples are shifted into a parallel-accessible shift register. A plurality of chip samples are accessed from the shift register and operated on in parallel to produce a multi-chip result for a channel each cycle. These multi-chip results can be accumulated and output to a symbol-rate processor on symbol boundaries. The scheduling of shift register access, computation, and accumulation can be scheduled such that the hardware is time-shared to support a large number of channels. In another aspect, time-tracking of a large number of channels can be accommodated through channel-specific indexing of the contents of the shift register file. These aspects, along with various others also presented, provide for hardware efficient chip rate processing capability for a large number of channels, with a high degree of flexibility in deployment of those channels.
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Patent Agency Ranking
公开(公告)号：DE60305655T2
公开(公告)日：2007-05-03
申请号：DE60305655
申请日：2003-02-27
Applicant: QUALCOMM INC
Inventor： TEAGUE EDWARD HARRISON , AMERGA MESSAY , LIN JEREMY , SHIU DA-SHAN
Abstract: Techniques for tracking closely spaced multipath and preventing finger merge without monitoring relative positions between each of a plurality of fingers are disclosed. In one aspect, motion limits are determined for each finger. Time-tracking commands that would move the position of a finger outside its respective motion limits are suppressed. In another aspect, motion limits are updated dynamically, the motion limits of each finger determined in accordance with the motion limits of fingers adjacent to it. Various other aspects are also presented. These aspects have the benefit of preventing finger merge, which allows the allocation of multiple fingers to closely spaced multipath, thus increasing performance and system capacity, and mitigating misallocation of system resources.
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公开(公告)号：AT328403T
公开(公告)日：2006-06-15
申请号：AT03713825
申请日：2003-02-27
Applicant: QUALCOMM INC
Inventor： TEAGUE EDWARD HARRISON , AMERGA MESSAY , LIN JEREMY , SHIU DA-SHAN
Abstract: Techniques for tracking closely spaced multipath and preventing finger merge without monitoring relative positions between each of a plurality of fingers are disclosed. In one aspect, motion limits are determined for each finger. Time-tracking commands that would move the position of a finger outside its respective motion limits are suppressed. In another aspect, motion limits are updated dynamically, the motion limits of each finger determined in accordance with the motion limits of fingers adjacent to it. Various other aspects are also presented. These aspects have the benefit of preventing finger merge, which allows the allocation of multiple fingers to closely spaced multipath, thus increasing performance and system capacity, and mitigating misallocation of system resources.
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公开(公告)号：BR0309157A
公开(公告)日：2005-04-26
申请号：BR0309157
申请日：2003-04-11
Applicant: QUALCOMM INC
Inventor： RAY-CHAUDHURI SIDDHARTHA , HSU CHIH-PING , EMANI CHALAPATHI RAO , LIN JEREMY , SINGH GURDEEP
Abstract: Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.
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公开(公告)号：AU2003224969A1
公开(公告)日：2003-10-27
申请号：AU2003224969
申请日：2003-04-11
Applicant: QUALCOMM INC
Inventor： RAY-CHAUDHURI SIDDHARTHA , HSU CHIH-PING , EMANI CHALAPATHI RAO , LIN JEREMY , SINGH GURDEEP
Abstract: Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.
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公开(公告)号：CA2477591A1
公开(公告)日：2003-09-04
申请号：CA2477591
申请日：2003-02-27
Applicant: QUALCOMM INC
Inventor： SHIU DA-SHAN , LIN JEREMY , TEAGUE EDWARD HARRISON , AMERGA MESSAY
Abstract: Techniques for tracking closely spaced multipath and preventing finger merge without monitoring relative positions between each of a plurality of fingers are disclosed. In one aspect, motion limits are determined for each finger. Time-tracking commands that would move the position of a finger outside its respective motion limits are suppressed. In another aspect, motion limits ar e updated dynamically, the motion limits of each finger determined in accordan ce with the motion limits of fingers adjacent to it. Various other aspects are also presented. These aspects have the benefit of preventing finger merge, which allows the allocation of multiple fingers to closely spaced multipath, thus increasing performance and system capacity, and mitigating misallocatio n of system resources.
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