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公开(公告)号：AT453260T
公开(公告)日：2010-01-15
申请号：AT06076030
申请日：2001-11-16
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M , SARKAR SANDIP , SAIFUDDIN AHMED
Abstract: The present invention relates to wireless voice and data communication systems. More particularly, the present invention relates to novel and improved methods and apparatus for transmitting data traffic on a communication channel. One such method comprises the steps of packaging a data payload into a plurality of subpackets; transmitting a first subpacket to a remote station; if the channel conditions are optimal, transmitting a remaining portion of the plurality of subpackets to the remote station; and if the channel conditions are not optimal within a predetermined time duration, then transmitting a remaining portion of the plurality of subpackets during unfavorable channel conditions. The apparatus may comprise means for packaging a data payload into a plurality of subpackets; means for transmitting a plurality of subpackets to a remote station; means for deciding, after the means for transmitting a plurality of subpackets has transmitted a first subpacket, whether: if the channel conditions are optimal, to transmit a remaining portion of the plurality of subpackets to the remote station; and if the channel conditions are not optimal within a predetermined time duration, then to transmit a remaining portion of the plurality of subpackets during unfavorable channel conditions. The information contained in this facsimile is confidential and is intended for the named addressee only. If the reader of the message is not the intended recipient, you must not copy, distribute or take any action in reliance on it. If you have received this facsimile in error, please notify us immediately and return the original to the sender by mail.
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公开(公告)号：DE602004021978D1
公开(公告)日：2009-08-20
申请号：DE602004021978
申请日：2004-01-16
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M , BAO GANG , OSES DAVID PUIG
Abstract: Techniques for improved margin control in a data communication system are disclosed. In one aspect, margin is adjusted in response to a first subpacket error rate (350). In another aspect, margin is further adjusted in response to an overall packet error rate (350). In yet another aspect, the first subpacket error rate is adjusted in response to an overall packet error rate (350). Various other aspects are also presented. These aspects have the benefit of responsive margin control when the overall packet error rate is relatively low, resulting in improved data throughput and increased system capacity.
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公开(公告)号：DE60229516D1
公开(公告)日：2008-12-04
申请号：DE60229516
申请日：2002-06-06
Applicant: QUALCOMM INC
Inventor： JAIN AVINASH , HOLTZMAN JACK M
Abstract: Method and apparatus for congestion control in a wireless communication system. Individual target data rate values are assigned individual access terminals. The individual data rates of the access terminals are adjusted to achieve the corresponding individual target data rate values. If the target values are not achieved within a predetermined number of iterations, the individual data rate is adjusted. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, wherein the status of the congestion bit is determined by comparing a congestion parameter to a predetermined threshold. One embodiment implements an outerloop threshold having a margin with respect to the desired congestion metric threshold. According to one embodiment, a congestion indicator includes multiple bits, wherein at least one bit instructs the mobile station to use target values or else to adjust without regard to a target value.
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公开(公告)号：DE60039678D1
公开(公告)日：2008-09-11
申请号：DE60039678
申请日：2000-01-28
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M , CHEN TAO , RAZOUMOV LEONID
Abstract: Method and apparatus for controlling transmission power in a closed loop power control system, wherein power control commands are based on the energy of the previous power control commands. In one embodiment, the method compares changes in the received energy of received power control commands against expected changes in those commands based on previously transmitted power control commands, and identifies suspicious responses to said previously transmitted power control commands. Hypothesis testing of the received power control commands is performed accordance any identified suspicious responses.
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公开(公告)号：DE60132432D1
公开(公告)日：2008-03-06
申请号：DE60132432
申请日：2001-03-02
Applicant: QUALCOMM INC
Inventor： SARKAR SANDIP , JOU YU-CHEUN , HOLTZMAN JACK M
Abstract: A method of modifying gain tables for the reverse-link communications in a cdma2000 wireless communication network includes the steps of estimating the velocity of a mobile station for a given frame error rate (FER) and data rate, and providing three gains to choose between based on the estimated velocity in order to specify a reverse-link transmit power level. The velocity estimation may be performed using a level crossing technique, a covariance approximation technique, or a Doppler spectrum estimation technique.
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Patent Agency Ranking
公开(公告)号：ES2290664T3
公开(公告)日：2008-02-16
申请号：ES04703015
申请日：2004-01-16
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M , BAO GANG , OSES DAVID PUIG
Abstract: Un aparato (104, 106) de un esquema de retransmisión que comprende: un medio (220, 230) para recibir un mensaje de error en respuesta a una transmisión de subpaquetes de un esquema de retransmisión, un medio (350) para incrementar un margen de potencia un primer valor cuando el mensaje de error indica que el primer subpaquete fue recibido con error; y además comprende un medio (350) para disminuir el margen de potencia un segundo valor cuando el mensaje de error indica que el primer subpaquete fue recibido sin error.
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公开(公告)号：DE60224390D1
公开(公告)日：2008-02-14
申请号：DE60224390
申请日：2002-06-05
Applicant: QUALCOMM INC
Inventor： JAIN AVINASH , HOLTZMAN JACK M
Abstract: Method and apparatus for congestion control in a wireless communication system. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, to be performed at an access terminal to determine the next data rate for transmissions on the reverse link. The status of the congestion bit is determined by comparing a congestion parameter to a predetermined threshold (186). One embodiment implements an outerloop threshold having a margin with respect to the desired congestion metric threshold. The outerloopthreshold is adjusted in response to comparing a measured congestion metric to the desired threshold (192, 194, 196). The outerloop threshold adjustment maintains the congestion metric to within a predetermined probability of exceeding the desired threshold.
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公开(公告)号：DE60035269D1
公开(公告)日：2007-08-02
申请号：DE60035269
申请日：2000-05-01
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M
Abstract: A method and corresponding apparatus separately estimates signal amplitude and noise in received signals, particularly symbols encoded using turbo codes. The method and apparatus, however, may be applied to such estimation in power control wireless systems (CDMA systems), other concatenated coding schemes, etc. A method and apparatus initially estimate the signal and noise, separately, in the received signal, such as by using curve fitting techniques. Thereafter, a finer estimate is provided by using the amplitude of received pilot symbols or using an estimate of the noise from the received pilot symbols.
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公开(公告)号：DE60311114D1
公开(公告)日：2007-02-22
申请号：DE60311114
申请日：2003-09-23
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M
Abstract: Methods and apparatus for improving the feedback of channel information to a serving base station, which provides accuracy and reliability of such information. The process determines the received link quality indicators using historical information of the previously received indicators. The method may be applied to full link quality indicators, differential indicators, and/or a combination of both.
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公开(公告)号：AT349826T
公开(公告)日：2007-01-15
申请号：AT04014971
申请日：2001-11-16
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK M , SARKAR SANDIP , SAIFUDDIN AHMED
Abstract: The present invention relates to wireless voice and data communication systems. More particularly, the present invention relates to novel and improved methods and apparatus for transmitting data traffic on a communication channel. One such method comprises the steps of packaging a data payload into a plurality of subpackets; transmitting a first subpacket to a remote station; if the channel conditions are optimal, transmitting a remaining portion of the plurality of subpackets to the remote station; and if the channel conditions are not optimal within a predetermined time duration, then transmitting a remaining portion of the plurality of subpackets during unfavorable channel conditions. The apparatus may comprise means for packaging a data payload into a plurality of subpackets; means for transmitting a plurality of subpackets to a remote station; means for deciding, after the means for transmitting a plurality of subpackets has transmitted a first subpacket, whether: if the channel conditions are optimal, to transmit a remaining portion of the plurality of subpackets to the remote station; and if the channel conditions are not optimal within a predetermined time duration, then to transmit a remaining portion of the plurality of subpackets during unfavorable channel conditions. The information contained in this facsimile is confidential and is intended for the named addressee only. If the reader of the message is not the intended recipient, you must not copy, distribute or take any action in reliance on it. If you have received this facsimile in error, please notify us immediately and return the original to the sender by mail.
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