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公开(公告)号：AT431060T
公开(公告)日：2009-05-15
申请号：AT02759727
申请日：2002-09-18
Applicant: QUALCOMM INC
Inventor： CHEN JIANGXIN , NEUFELD ARTHUR , GLAZKO SERGUEI , AMERGA MESSAY
Abstract: A quick paging channel (QPCH) is used to receive paging indicators that indicate that a wireless communication device (WCD) has a message on a paging channel relating to, for example, an incoming call to the WCD. When the condition of the quick paging channel is too low to receive paging indicators reliably, the quick paging channel is disabled to avoid false alarms, and the slotted paging channel is used to receive paging messages without monitoring the QPCH. When the QPCH signal is strong, the probability of false alarms is lower, and the quick paging channel is enabled. By using the quick paging channel to receive paging indicators only when the QPCH signal is strong, the wireless communication device can remain in a sleep state for greater periods of time as compared with the use of a slotted paging channel. As a result, standby time may be significantly improved.
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公开(公告)号：CA2526757A1
公开(公告)日：2004-12-23
申请号：CA2526757
申请日：2004-05-28
Applicant: QUALCOMM INC
Inventor： ABRISHAMKAR FARROKH , GLAZKO SERGUEI , SMEE JOHN E
Abstract: A decision feedback equalizer includes a chip estimate buffer that forms chi p estimates into a vector. A CCK decoder decodes the vector of chip estimates, and a CCK encoder, connected with the CCK decoder, re-encodes the vector of chip estimates into a valid CCK code word. At the same time, a chip slicer provides direct sliced chips from the chip estimates. An update module then forms a hybrid vector from the valid CCK code-word and the direct sliced chi ps for input to the feedback filter of the decision feedback equalizer. The hybrid feedback filter input vector reflects the CCK coding gain of its re- encoded portion thereby reducing the estimated chip error rate to improve th e performance of the decision feedback equalizer.
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公开(公告)号：BR0210581A
公开(公告)日：2004-06-08
申请号：BR0210581
申请日：2002-06-28
Applicant: QUALCOMM INC
Inventor： JOSHI ABHAY , GLAZKO SERGUEI , NEUFELD ARTHUR JAMES
IPC: H04B1/7073 , H04B1/7075 , H04Q7/38 , H04B1/707
Abstract: Systems and techniques are disclosed wherein a gated pilot signal can be acquired faster by checking the neighbor pilot signals of the target pilot signal. A subscriber station may frequency lock onto a wrong pilot burst because a partial correlation exists between the wrong pilot burst and an adjacent pilot burst. Comparing the strength of the target pilot signal with the strength of neighbor pilot signals enables the selection of the strongest pilot signal before the timely process of frequency locking and demodulation are initiated. Grouping pilot signals with the same symbol sequence and a pseudo-random noise increment apart enables quick acquisition of a gated pilot signal.
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公开(公告)号：AU2002241864A1
公开(公告)日：2002-07-24
申请号：AU2002241864
申请日：2002-01-10
Applicant: QUALCOMM INC
Inventor： RICK ROLAND R , AMERGA MESSAY , GLAZKO SERGUEI , MALHOTRA ROHIT
IPC: H04B1/7117 , H04B7/06 , H04B1/707
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：AU9275201A
公开(公告)日：2002-03-26
申请号：AU9275201
申请日：2001-09-12
Applicant: QUALCOMM INC
Inventor： CHEN JIANGXIN , NEUFELD ARTHUR , GLAZKO SERGUEI , AMERGA MESSAY
Abstract: A mobile station selectively operates in quick paging mode (108) or in slotted paging mode (110). If the quality of the channel exceeds a threshold (106), then the mobile station operated in quick paging mode; otherwise in slotted paging mode. The mobile station measures channel quality by measuring various quality metrics (112-120) made during several previous pages (124), preferably over a period of about ten seconds (128). The quality metrics, and the previous pages, are preferably all given equal weight (122, 126).
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Patent Agency Ranking
公开(公告)号：DE60232256D1
公开(公告)日：2009-06-18
申请号：DE60232256
申请日：2002-09-18
Applicant: QUALCOMM INC
Inventor： CHEN JIANGXIN , NEUFELD ARTHUR , GLAZKO SERGUEI , AMERGA MESSAY
Abstract: A quick paging channel (QPCH) is used to receive paging indicators that indicate that a wireless communication device (WCD) has a message on a paging channel relating to, for example, an incoming call to the WCD. When the condition of the quick paging channel is too low to receive paging indicators reliably, the quick paging channel is disabled to avoid false alarms, and the slotted paging channel is used to receive paging messages without monitoring the QPCH. When the QPCH signal is strong, the probability of false alarms is lower, and the quick paging channel is enabled. By using the quick paging channel to receive paging indicators only when the QPCH signal is strong, the wireless communication device can remain in a sleep state for greater periods of time as compared with the use of a slotted paging channel. As a result, standby time may be significantly improved.
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公开(公告)号：AT403978T
公开(公告)日：2008-08-15
申请号：AT02702159
申请日：2002-02-06
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI , BLACK PETER , CHALLA RAGHU
IPC: H04B1/7073 , H04B7/26
Abstract: Techniques to search for a gated pilot reference in a wireless communication system. In one method, an overall code space in which the pilot may be found is partitioned into a number of groups of code sets, with each code set representative of all possible chip offsets of a specific PN sequence. The groups are ordered based on the likelihood of detecting the pilot in each of the groups. The groups of code sets are then used to search for the pilot, one group at a time, starting with the group most likely to result in successful pilot acquisition and ending with the group least likely to result in successful pilot acquisition. The search is terminated upon successful acquisition. The pilot search may be performed using detect, dwell, and pull-in substages. The detect substage for one group may be performed in parallel with the pull-in substage for another group.
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公开(公告)号：ES2286143T3
公开(公告)日：2007-12-01
申请号：ES01973607
申请日：2001-09-27
Applicant: QUALCOMM INC
Inventor： GLAZKO SERGUEI
IPC: H04B1/707 , H04B1/7117 , H04B7/08
Abstract: Un procedimiento para asignar un segundo dedo en un receptor inalámbrico de acceso múltiple por división de código (CDMA) en el que: (a) el procedimiento incluye las etapas de: (1) determinar una distancia entre el desfase asignado de un primer dedo y el desfase de un pico de energía detectado mediante un buscador; y (2) asignar un segundo dedo si la distancia excede un primer umbral; y (b) el procedimiento está caracterizado porque el procedimiento incluye además las etapas de: (1) reducir la velocidad de un bucle de seguimiento de tiempo para tanto el primer dedo como para el segundo dedo si la distancia excede el primer umbral pero no excede un segundo umbral, que es mayor que el primer umbral; y (2) mantener la velocidad del bucle de seguimiento de tiempo para tanto el primer dedo como para el segundo dedo si la distancia excede el segundo umbral.
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公开(公告)号：AT364262T
公开(公告)日：2007-06-15
申请号：AT01973607
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：HK1063252A1
公开(公告)日：2004-12-17
申请号：HK04105972
申请日：2004-08-10
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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