公开(公告)号：DE60228215D1

公开(公告)日：2008-09-25

申请号：DE60228215

申请日：2002-03-28

Applicant: QUALCOMM INC

Inventor： SARKAR SANDIP ,  HOLTZMAN JACK M

IPC: 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).

公开(公告)号：DE602004008216T2

公开(公告)日：2008-05-15

申请号：DE602004008216

申请日：2004-01-16

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M ,  BAO GANG ,  OSES DAVID PUIG

IPC: H04B7/005 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/20 ,  H04W52/12 ,  H04W52/36 ,  H04W52/50

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.

公开(公告)号：DE60132027D1

公开(公告)日：2008-01-31

申请号：DE60132027

申请日：2001-11-16

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M ,  SARKAR SANDIP ,  SAIFUDDIN AHMED

IPC: H04L1/00 ,  H04B7/005 ,  H04B7/26 ,  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.

公开(公告)号：BR0309683A

公开(公告)日：2007-11-06

申请号：BR0309683

申请日：2003-04-29

Applicant: QUALCOMM INC

Inventor： WEI YONGBIN ,  HOLTZMAN JACK M ,  BAO GANG ,  SARKAR SANDIP ,  PUIG-OSES DAVID

IPC: H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L1/20 ,  H04L12/56 ,  H04L29/06

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.

公开(公告)号：ES2267868T3

公开(公告)日：2007-03-16

申请号：ES01999071

申请日：2001-11-16

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M ,  SARKAR SANDIP ,  SAIFUDDIN AHMED

IPC: H04L1/00 ,  H04B7/005 ,  H04B7/26 ,  H04L1/16 ,  H04L1/18 ,  H04W52/22 ,  H04W52/28 ,  H04W52/48

Abstract: Un método para la transmisión de datos en un canal de un sistema de comunicación inalámbrico, el método comprende: empaquetar una carga útil DE datos en una pluralidad de subpaquetes; y transmitiendo secuencialmente (40, 71) subpaquetes de una primera porción de la pluralidad de subpaquetes a intervalos periódicos, el método caracterizado porque: determina información del estado del canal para el canal; y transmite secuencialmente (42, 75) subpaquetes de una segunda porción de la pluralidad de subpaquetes no periódicamente en momentos en que información del estado del canal indique que hay condiciones del canal favorables.

公开(公告)号：BRPI0406792A

公开(公告)日：2006-01-17

申请号：BRPI0406792

申请日：2004-01-16

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M ,  BAO GANG ,  OSES DAVID PUIG

IPC: H04B7/005 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/20 ,  H04W52/12 ,  H04W52/36 ,  H04W52/50

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.

公开(公告)号：BR0314674A

公开(公告)日：2005-08-09

申请号：BR0314674

申请日：2003-09-23

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M

IPC: H04L1/20 ,  H04L69/40

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.

公开(公告)号：HK1064818A1

公开(公告)日：2005-02-04

申请号：HK04107616

申请日：2004-10-05

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M ,  CHEN TAO ,  RAZOUMOV LEONID

IPC: H04B20060101 ,  H04B7/005 ,  H04B7/26

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.

公开(公告)号：HK1062509A1

公开(公告)日：2004-11-05

申请号：HK04104684

申请日：2004-06-30

Applicant: QUALCOMM INC

Inventor： RAZOUMOV LEONID ,  LUNDBY STEIN A ,  HOLTZMAN JACK M ,  TIEDEMANN EDWARD G ,  ODENWALDER JOSEPH P

IPC: H04L20060101 ,  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).

公开(公告)号：MXPA03004726A

公开(公告)日：2004-05-04

申请号：MXPA03004726

申请日：2001-11-16

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK M

IPC: H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W52/22 ,  H04W52/28 ,  H04W52/48

Abstract: Se presentan metodos y un aparato para programar transmisiones de paquetes de datos durante condiciones optimas de canal. En un metodo, las retransmisiones de paquetes de datos se programan para la transmision durante condiciones favorables de canal cuando la estacion remota blanco se esta moviendo lentamente, pero se programan para transmisiones periodicas cuando el blanco se esta moviendo moderadamente o rapido. En otro metodo, se eliminan los retardos grandes para las retransmisiones en un esquema de temporizacion sensible de canal. En otros metodos, se utilizan una combinacion de retransmisiones periodicas y no periodicas para alcanzar la proporcion de error de trama deseada.