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公开(公告)号：CA2438857A1
公开(公告)日：2002-09-06
申请号：CA2438857
申请日：2002-02-21
Applicant: QUALCOMM INC
Inventor： JOSHI ABHAY , ACHOUR BAAZIZ , GLAZKO SERGUEI
Abstract: The present invention provides a method and apparatus for maximizing throughput of a data call in a wireless communication system in which data i s transmitted from a wireless station, such as a mobile station, on multiple assigned channels in accordance with a known transmission standard, such as IS- 95B. The multiple assigned channels include a fundamental channel and at lea st one supplemental channel. Data is formatted into variable rate data frames a nd transmitted on the fundamental channel and the supplemental channel. A wireless receiver, such as a base station, receives the multiple assigned channels. The wireless receiver demodulates and decodes data frames associat ed with each of the multiple assigned channels. The wireless receiver determine s a likely initial data rate for each demodulated and decode data frame. The wireless receiver correlates all of the likely data rates, by comparison to one another and to a relevant transmission protocol standard, to determine a maximum likelihood combination of data rates. The maximum likelihood combination of data rates includes a maximum likelihood data rate corresponding to each likely data rate. Decoded data frames are invalidated and erased when the likely data frame rates do not match corresponding maxim um likelihood data rates.
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公开(公告)号：AU7167201A
公开(公告)日：2002-01-14
申请号：AU7167201
申请日：2001-06-28
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI , ACHOUR BAAZIZ , LIN YU-CHUAN
Abstract: A system and method for detecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a plurality of frames; classifying each of the frames; analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame. In the illustrative embodiment, the step of classifying includes the step of error checking the frames using a cyclic redundancy check (CRC) error checking protocol. The received frames are classified as good frames (G), erasure frames (E), or discontinuous frames (D). A numerical value is assigned to each of the frames based on the classification thereof. Next, the frames are filtered to provide an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate the detection of discontinuous frames. That is, a detection of a discontinuous transmission frame is indicated when a frame is classified as an 'erasure' and the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames or a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.
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公开(公告)号：AT489777T
公开(公告)日：2010-12-15
申请号：AT02707459
申请日：2002-01-10
Applicant: QUALCOMM INC
Inventor： RICK ROLAND , GLAZKO SERGUEI , MALHOTRA ROHIT , AMERGA MESSAY
IPC: H04B1/7117 , H04B7/06
Abstract: An apparatus, such as a subscriber unit or a base station within a spread spectrum communication system, may add one or more additional "virtual" paths to a list of candidate paths when assigning demodulation elements. These "virtual" paths are added as candidate paths even though a corresponding peak was not necessarily detected within a received spread spectrum system. The list of paths may include a first path having a time offset approximately equal to a time offset for one of the demodulation elements, and the virtual path having a short time separation from the first path. The time separation between the paths may be, for example, less than 2 chips.
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公开(公告)号：DE60141962D1
公开(公告)日：2010-06-10
申请号：DE60141962
申请日：2001-06-28
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI , ACHOUR BAAZIZ , LIN YU-CHUAN
Abstract: A system and method for detecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a plurality of frames; classifying each of the frames; analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame. In the illustrative embodiment, the step of classifying includes the step of error checking the frames using a cyclic redundancy check (CRC) error checking protocol. The received frames are classified as good frames (G), erasure frames (E), or discontinuous frames (D). A numerical value is assigned to each of the frames based on the classification thereof. Next, the frames are filtered to provide an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate the detection of discontinuous frames. That is, a detection of a discontinuous transmission frame is indicated when a frame is classified as an 'erasure' and the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames or a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.
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公开(公告)号：CA2727181A1
公开(公告)日：2010-01-21
申请号：CA2727181
申请日：2009-06-23
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI , BREHLER MATTHIAS , KIM JE WOO , MAKHIJANI MAHESH A
Abstract: Methods and apparatus are provided for increasing throughput in a wireless communication system by reducing the amount of overhead transmitted to certain user terminals. Overhead due to control information may be reduced for these certain user terminals by selecting a low repetition factor. Overhead may be further reduced for these certain user terminals by selecting a modulation/coding scheme with a higher data rate for transmitting the control information. The selection may be based on channel conditions associated with the user terminals, such as signal-to-interference-plus-noise ratios (SINRs).
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Patent Agency Ranking
公开(公告)号：DE60128820T2
公开(公告)日：2008-02-07
申请号：DE60128820
申请日：2001-09-27
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI
IPC: H04B1/707 , H04B1/7117 , H04B7/08
Abstract: A Code Division Multiple Assess (CDMA) receiving station includes first finger (310), a second finger (312), and a searcher (314). Assignment and deassignment of second finger (312) are made in part by determining the gap between the first finger and the second finger, or between the first finger and an energy peak detected by the searcher. Assignment and deassignment of second finger (312) are also made in part by selectively slowing the Time Tracking Loop (TTL) of both fingers when appropriate thresholds are crossed.
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公开(公告)号：MY134027A
公开(公告)日：2007-11-30
申请号：MYPI20021277
申请日：2002-04-09
Applicant: QUALCOMM INC
Inventor： LEE WAY-SHING , GLAZKO SERGUEI , CHALLA RAGHU , FEVRIER IAN , SIH GIL , ABRISHAMKAR FARROKH , PATRICK CHRISTOPHER
Abstract: [0072] A SPREAD SPECTRUM WIRELESS DEVICE (100) MAY INCLUDE A RECEIVER (110), A SEARCHER (128), A SEARCH CONTROLLER (130) AND OTHER FEATURES. THE SEARCH CONTROLLER (130) SELECTIVELY GENERATES CONTROL SIGNALS TO CONTROL THE SEARCHER (128) , WHICH SEARCHES FOR A SPREAD-SPECTRUM SIGNAL. IN ONE EMBODIMENT, THE ARCHITECTURE OF THE SEARCHER (128) IS DYNAMICALLY CONFIGURABLE BY THE SEARCH CONTROLLER (130) TO SELECTIVELY SEARCH MULTIPLE CHANNELS USING MULTIPLE FREQUENCY BINS FOR THE SIGNAL.(FIG 1)
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公开(公告)号：DE60128820D1
公开(公告)日：2007-07-19
申请号：DE60128820
申请日：2001-09-27
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI
IPC: H04B1/707 , H04B1/7117 , H04B7/08
Abstract: A Code Division Multiple Assess (CDMA) receiving station includes first finger (310), a second finger (312), and a searcher (314). Assignment and deassignment of second finger (312) are made in part by determining the gap between the first finger and the second finger, or between the first finger and an energy peak detected by the searcher. Assignment and deassignment of second finger (312) are also made in part by selectively slowing the Time Tracking Loop (TTL) of both fingers when appropriate thresholds are crossed.
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公开(公告)号：DE60213772D1
公开(公告)日：2006-09-21
申请号：DE60213772
申请日：2002-02-21
Applicant: QUALCOMM INC
Inventor： JOSHI ABHAY , ACHOUR BAAZIZ , GLAZKO SERGUEI
Abstract: The present invention provides a method and apparatus for maximizing throughput of a data call in a wireless communication system in which data is transmitted from a wireless station, such as a mobile station, on multiple assigned channels in accordance with a known transmission standard, such as IS-95B. The multiple assigned channels include a fundamental channel and at least one supplemental channel. Data is formatted into variable rate data frames and transmitted on the fundamental channel and the supplemental channel. A wireless receiver, such as a base station, receives the multiple assigned channels. The wireless receiver demodulates and decodes data frames associated with each of the multiple assigned channels. The wireless receiver determines a likely initial data rate for each demodulated and decode data frame. The wireless receiver correlates all of the likely data rates, by comparison to one another and to a relevant transmission protocol standard, to determine a maximum likelihood combination of data rates. The maximum likelihood combination of data rates includes a maximum likelihood data rate corresponding to each likely data rate. Decoded data frames are invalidated and erased when the likely data frame rates do not match corresponding maximum likelihood data rates.
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30.发明专利
公开(公告)号：HK1063892A1
公开(公告)日：2005-01-14
申请号：HK04106566
申请日：2004-09-01
Applicant: QUALCOMM INC
Inventor： CHALLA RAGHU , ABRISHAMKAR FARROKH , FEVRIER IAN , GLAZKO SERGUEI , LEE WAY-SHING , PATRICK CHRISTOPHER , SIH GIL
IPC: H04B20100101 , H04B7/26
Abstract: A spread spectrum wireless device (100) may include a receiver (110), a searcher (128), a search controller (130) and other features. The search controller (130) selectively generates control signals to control the searcher (128), which searches for a spread-spectrum signal. In one embodiment, the architecture of the searcher (128) is dynamically configurable by the search controller (130) to selectively search multiple channels using multiple frequency bins for the signal.
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