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公开(公告)号:HK1084798A1
公开(公告)日:2006-08-04
申请号:HK06104781
申请日:2006-04-21
Applicant: QUALCOMM INC
Inventor: HOLTZMAN JACK M , SARKAR SANDIP , SAIFUDDIN AHMED
IPC: H04B7/005 , H04B7/26 , H04L20100101 , H04L1/00 , H04L1/16 , H04L1/18 , H04W52/22 , H04W52/28 , H04W52/48
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:HK1069697A1
公开(公告)日:2005-05-27
申请号:HK05102576
申请日:2005-03-24
Applicant: QUALCOMM INC
Inventor: HOLTZMAN JACK M , SARKAR SANDIP , SAIFUDDIN AHMED
IPC: H04L20060101 , H04B7/005 , H04B7/26 , H04L1/00 , H04L1/16 , H04L1/18 , H04W52/22 , H04W52/28 , H04W52/48
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:BR0115761A
公开(公告)日:2005-05-24
申请号:BR0115761
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:HK1064226A1
公开(公告)日:2005-01-21
申请号:HK04106765
申请日:2004-09-07
Applicant: QUALCOMM INC
Inventor: SARKAR SANDIP , HOLTZMAN JACK M
IPC: H04B20060101 , H04B7/005 , H04B7/26
Abstract: Method and apparatus for power control in a packet-data switched communicaiton system by (30) adapting a transmission energy setpoint to transmission quality (104) and adjusted the retransmission energy setpoint accordingly (150)(110). In one embodiment, the retransmission energy setpoint is adjusted as a function of retransmission quality (164, 166, 168, 170).
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公开(公告)号:BR0115906A
公开(公告)日:2004-04-06
申请号:BR0115906
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:CA2497413A1
公开(公告)日:2004-04-01
申请号:CA2497413
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 usi ng 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:NO20034052L
公开(公告)日:2003-11-12
申请号:NO20034052
申请日:2003-09-12
Applicant: QUALCOMM INC
Inventor: CHEN TAO , HOLTZMAN JACK M , LING FUNYUN , SAINTS KEITH W , SINDHUSHAYANA NAGABHUSHANA T , WHEATLEY III CHARLES E
Abstract: Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics include one of a re-encoded power metric and a modified Yamamoto metric. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
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公开(公告)号:AU767202B2
公开(公告)日:2003-11-06
申请号:AU5491999
申请日:1999-08-17
Applicant: QUALCOMM INC
Inventor: LUNDBY STEIN A , TIEDEMANN EDWARD G JR , HOLTZMAN JACK M , TERASAWA DAISUKE
IPC: H04B1/707 , H04B1/7097 , H04B7/005 , H04L27/26
Abstract: A method for limiting peak transmit power in a CDMA communication system by transmitting a first communication signal having a first high transmit power region, and transmitting a second communication signal having a second high transmit power region. A first and a second communication signal are time offset to prevent the first and second high transmit power regions from occurring simultaneously. Time shifting only a portion of the first and second communication signals is also taught. The first and second communication signals can also include respective first and second low transmit power regions. The time offset can be selected to align one of the first and second high transmit power regions with one of the first and second low transmit power regions. The total transmit power signal can be determined and the time offset can be selected to minimize a peak level of the total transmit power signal. The communication signals are separated into a plurality of portions and portions of the first and second communication signals are time offset to re-order the sequence of transmission of the plurality of portions.
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公开(公告)号:NO20092777A
公开(公告)日:2003-09-12
申请号:NO20092777
申请日:2009-07-28
Applicant: QUALCOMM INC
Inventor: CHEN TAO , HOLTZMAN JACK M , LING FUYUN , SAINTS KEITH , WHEATLEY CHARLES E , SINDHUSHAYANA NAGABHUSHANA
CPC classification number: E21B29/10 , B21D31/04 , B21D39/08 , E21B23/08 , E21B43/105
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公开(公告)号:NO20034052D0
公开(公告)日:2003-09-12
申请号:NO20034052
申请日:2003-09-12
Applicant: QUALCOMM INC
Inventor: CHEN TAO , HOLTZMAN JACK M , LING FUNYUN , SAINTS KEITH W , SINDHUSHAYANA NAGABHUSHANA T , WHEATLEY III CHARLES E
Abstract: Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics include one of a re-encoded power metric and a modified Yamamoto metric. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
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