公开(公告)号：ES2365908T3

公开(公告)日：2011-10-13

申请号：ES01941848

申请日：2001-05-31

Applicant: QUALCOMM INC

Inventor： LUNDBY STEIN ,  CASACCIA LORENZO ,  RAZOUMOV LEONID

IPC: H03M13/23 ,  G06F11/10 ,  H04L1/00 ,  H03M13/00 ,  H04L1/08

Abstract: Un procedimiento para perforar símbolos en un sistema de comunicaciones, comprendiendo el procedimiento, sucesivamente: recibir un número S de símbolos que han de caber en una trama que tiene una capacidad de N símbolos, siendo S mayor que N; determinar un número P de símbolos que han de ser perforados de entre los S símbolos recibidos, de modo que los símbolos restantes no perforados quepan en la trama; calcular una pluralidad de distancias de perforación D1 a DN en base al número S de símbolos recibidos y al número de perforaciones P de símbolos, incluyendo una "distancia de perforación" distancias entre dos bits perforados y la distancia entre el comienzo de la trama y el primer bit perforado; determinar un número particular de perforaciones de símbolos que deben llevarse a cabo para cada una de la pluralidad de distancias de perforación D1 a DN, en la que deben llevarse a cabo P1 a PN perforaciones de símbolos a las distancias de perforación de D1 a DN, respectivamente; y llevar a cabo, desde el inicio de la trama, P1 a PN perforaciones de símbolos a las distancias de perforación de D1 a DN, respectivamente, alternando entre las distancias de perforación de D1 a DN para lograr una distribución uniforme de las perforaciones de símbolos hasta que se logren todas las perforaciones a una de las distancias, llevándose a cabo las restantes perforaciones a las otras distancias.

公开(公告)号：ES2350423T3

公开(公告)日：2011-01-21

申请号：ES01987531

申请日：2001-10-24

Applicant: QUALCOMM INC

Inventor： RAZOUMOV LEONID ,  LUNDBY STEIN ,  BAO GANG

IPC: H04L29/08 ,  H04W72/14 ,  H04L1/00 ,  H04W48/20 ,  H04W72/04

Abstract: Un aparato inalámbrico (80) operativo para recibir datos de paquete a través de al menos uno de un primer conjunto de canales (64, 66, 68) en un sistema de comunicación inalámbrica (50), estando adaptado el sistema para soportar la transmisión de datos de paquete y la transmisión con bajo retardo a través de una pluralidad de canales de transmisión, comprendiendo el aparato inalámbrico: un procesador operativo para recibir mensajes a través de un canal de señalización y determinar la información del destinatario objetivo y la información de codificación de los mensajes recibidos; estando separado el canal de señalización del primer conjunto de canales, una unidad de determinación de la velocidad de transmisión de datos operativa para calcular la velocidad de transmisión de datos para recibir datos de paquete a través de al menos uno del primer conjunto de canales de acuerdo con la información de los destinatario objetivo y la información de codificación, y un transmisor operativo para enviar la velocidad de transmisión de datos calculada a una estación transmisora.

公开(公告)号：CA2427007C

公开(公告)日：2010-08-10

申请号：CA2427007

申请日：2001-10-24

Applicant: QUALCOMM INC

Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID ,  BAO GANG ,  WEI YONGBIN

IPC: H04B7/26 ,  H04L12/56 ,  H04B7/005 ,  H04W28/22 ,  H04W52/16 ,  H04W52/26 ,  H04W52/28 ,  H04W52/32 ,  H04W52/34

Abstract: In a wireless communication system (50) a method for combination transmission of packet data and low delay data. In one embodiment a parallel signaling channel provides a message to receivers (56, 58, 60) indicating a target recipient of packet data. The message also identifies the transmission channel used for packet data transmissions. Each receiver may then selectively decode only packets where the message identifies the receiver as a target recipient. The data packets stored in a buffer are ignored if the target recipient is another mobile unit. In one embodiment, the message is sent concurrently with the data packet on a parallel channel. In one embodiment, the message is punctured into the high rate packet data transmission.

公开(公告)号：AT403281T

公开(公告)日：2008-08-15

申请号：AT00913286

申请日：2000-01-28

Applicant: QUALCOMM INC

Inventor： HOLTZMAN JACK ,  CHEN TAO ,  RAZOUMOV LEONID

IPC: 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：DE60220881T2

公开(公告)日：2008-03-13

申请号：DE60220881

申请日：2002-01-23

Applicant: QUALCOMM INC

Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID

IPC: H04B7/005 ,  H04B7/26 ,  H04B17/00 ,  H04W52/08 ,  H04W52/22 ,  H04W52/24 ,  H04W52/60

Abstract: Method and apparatus for providing link quality feedback to a transmitter (32,34). In one embodiment, a periodic link quality message is transmitted on a gated channel, while continuous differential indicators are transmitted. Between quality messages, the differential indicators track the quality of the link. In one embodiment, a remote station includes a differential analyzer (212) to determine the change in successive channel quality measurements. The quality metric and the differential indicator are used for providing power control commands and rate control commands to teh base station. The quality metric and the differential indicator are transmitted at two different frequencies.

公开(公告)号：HK1104696A1

公开(公告)日：2008-01-18

申请号：HK07112013

申请日：2004-12-06

Applicant: QUALCOMM INC

Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID

IPC: H04W20090101 ,  H04B7/005 ,  H04B7/26 ,  H04W52/08 ,  H04W52/22 ,  H04W52/24 ,  H04W52/60

Abstract: Method and apparatus for providing link quality feedback to a transmitter (32,34). In one embodiment, a periodic link quality message is transmitted on a gated channel, while continuous differential indicators are transmitted. Between quality messages, the differential indicators track the quality of the link. In one embodiment, a remote station includes a differential analyzer (212) to determine the change in successive channel quality measurements. The quality metric and the differential indicator are used for providing power control commands and rate control commands to teh base station. The quality metric and the differential indicator are transmitted at two different frequencies.

公开(公告)号：AU2004202495B2

公开(公告)日：2007-12-20

申请号：AU2004202495

申请日：2004-06-08

Applicant: QUALCOMM INC

Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID

IPC: H04B7/005 ,  H04B7/26 ,  H04J3/00 ,  H04W52/24 ,  H04W52/54 ,  H04W52/58 ,  H04W52/60

Abstract: A method and apparatus for controlling transmit power levels of a plurality of different data streams (120, 120a, 122, 122a, 124, 124a) transmitted from at least one base station to a mobile station in a mobile radio communication system. The first and second data streams are trasmitted from the base station and received at the mobile station. A stream of power control commands is formed at the mobile station in accordance with either the first or second received data stream. A power control signal is formed at the mobile station from the first stream of power control commands and transmitted to the base station. A received stream of power control commands is formed from the received power control signal at the base station, and the transmit power levels of the first and second data streams from the base station are controlled in accordance with the received stream of power control commands.

公开(公告)号：AU2007202278A1

公开(公告)日：2007-06-07

申请号：AU2007202278

申请日：2007-05-21

Applicant: QUALCOMM INC

Inventor： WEI YONGBIN ,  RAZOUMOV LEONID ,  BAO GANG ,  LUNDBY STEIN A

IPC: H04B7/26 ,  H04B7/005 ,  H04L12/56 ,  H04W28/22 ,  H04W52/16 ,  H04W52/26 ,  H04W52/28 ,  H04W52/32 ,  H04W52/34

Abstract: In a wireless communication system (50) a method for combination transmission of packet data and low delay data. In one embodiment a parallel signaling channel provides a message to receivers (56, 58, 60) indicating a target recipient of packet data. The message also identifies the transmission channel used for packet data transmissions. Each receiver may then selectively decode only packets where the message identifies the receiver as a target recipient. The data packets stored in a buffer are ignored if the target recipient is another mobile unit. In one embodiment, the message is sent concurrently with the data packet on a parallel channel. In one embodiment, the message is punctured into the high rate packet data transmission.

公开(公告)号：DE60123272T2

公开(公告)日：2007-04-05

申请号：DE60123272

申请日：2001-11-29

Applicant: QUALCOMM INC

Inventor： RAZOUMOV LEONID ,  LUNDBY A ,  HOLTZMAN M ,  TIEDEMANN G ,  ODENWALDER P

IPC: H04L1/00 ,  H04B1/7103 ,  H04B7/005 ,  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：HK1063547A1

公开(公告)日：2004-12-31

申请号：HK04106281

申请日：2004-08-23

Applicant: QUALCOMM INC

Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID ,  BAO GANG ,  WEI YONGBIN

IPC: H04B7/26 ,  H04W20090101 ,  H04B7/005 ,  H04L20060101 ,  H04L12/56 ,  H04W28/22 ,  H04W52/16 ,  H04W52/26 ,  H04W52/28 ,  H04W52/32 ,  H04W52/34

Abstract: In a wireless communication system (50) a method for combination transmission of packet data and low delay data. In one embodiment a parallel signaling channel provides a message to receivers (56, 58, 60) indicating a target recipient of packet data. The message also identifies the transmission channel used for packet data transmissions. Each receiver may then selectively decode only packets where the message identifies the receiver as a target recipient. The data packets stored in a buffer are ignored if the target recipient is another mobile unit. In one embodiment, the message is sent concurrently with the data packet on a parallel channel. In one embodiment, the message is punctured into the high rate packet data transmission.