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公开(公告)号:AT340448T
公开(公告)日:2006-10-15
申请号:AT01270021
申请日:2001-11-29
Applicant: QUALCOMM INC
Inventor: RAZOUMOV LEONID , LUNDBY STEIN A , HOLTZMAN JACK M , TIEDEMANN EDWARD G , ODENWALDER JOSEPH P
IPC: H04B1/7103 , H04B7/005 , H04L1/00 , H04L1/20 , H04W52/36
Abstract: A method for coherent estimation of the traffic-to-pilot energy ratio is presented. A received preamble is decoded (20), and then re-encoded (22). The received preamble is then multiplied by the re-encoded preamble (23). The results are summmed (24), squared (26), and then divided by a pilot energy value (28). In another method, a message (41) carrying energy information can be inserted between a subpacket preamble (40) and a subpacket (42).
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公开(公告)号:BR0210196A
公开(公告)日:2006-10-10
申请号:BR0210196
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:DK1354441T3
公开(公告)日:2006-09-11
申请号:DK01999071
申请日:2001-11-16
Applicant: QUALCOMM INC
Inventor: SAIFUDDIN AHMED , HOLTZMAN JACK M , SARKAR SANDIP
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:AT327607T
公开(公告)日:2006-06-15
申请号:AT01999071
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:BR0210194A
公开(公告)日:2005-04-19
申请号:BR0210194
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:HK1066654A1
公开(公告)日:2005-03-24
申请号:HK04109558
申请日:2002-03-27
Applicant: QUALCOMM INC
Inventor: CHEN TAO , HOLTZMAN JACK M , RAZOUMOV LEONID , PATEL SHIMMAN , SAINTS KEITH , TIEDEMANN EDWARD G JR
IPC: H04B20060101
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公开(公告)号:CA2513256A1
公开(公告)日:2004-08-05
申请号:CA2513256
申请日:2004-01-16
Applicant: QUALCOMM INC
Inventor: HOLTZMAN JACK M , OSES DAVID PUIG , BAO GANG
Abstract: Techniques for improved margin control in a data communication system are disclosed. In one aspect, margin is adjusted in response to a first subpacke t 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 subpack et 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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138.
公开(公告)号:AU2003231193A8
公开(公告)日:2003-11-17
申请号:AU2003231193
申请日:2003-04-29
Applicant: QUALCOMM INC
Inventor: SARKAR SANDIP , BAO GANG , HOLTZMAN JACK M , WEI YONGBIN , PUIG-OSES DAVID
Abstract: A method for formatting a packet into a transmission format comprising: determining a fading curve representative of a transmission channel on which the packet is to be sent to a remote station; determining a margin offset to the fading curve based on a feedback message from the remote station; and determining whether a transmission format incorporating the margin offset is feasible for formatting the packet; and if feasible, then formatting the packet according the trasmission format incorporating the margin offset.
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公开(公告)号:NO20032429L
公开(公告)日:2003-07-30
申请号:NO20032429
申请日:2003-05-28
Applicant: QUALCOMM INC
Inventor: HOLTZMAN JACK M , SARKAR SANDIP , SAIFUDDIN AHMED
IPC: H04B7/005 , H04B7/26 , H04L1/00 , H04L1/16 , H04L1/18 , H04W52/22 , H04W52/28 , H04W52/48 , H04L
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:NO20032429A
公开(公告)日:2003-07-30
申请号:NO20032429
申请日:2003-05-28
Applicant: QUALCOMM INC
Inventor: HOLTZMAN JACK M , SARKAR SANDIP , SAIFUDDIN AHMED
IPC: H04B7/005 , H04B7/26 , H04L1/00 , H04L1/16 , H04L1/18 , H04W52/22 , H04W52/28 , H04W52/48 , H04L
CPC classification number: H04L1/1819 , H04L1/0002 , H04L1/0009 , H04L1/1825 , H04L1/1845 , H04L1/1887 , H04W52/282
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