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    aumento da capacidade de comunicações sem fio
    1.
    发明专利
    aumento da capacidade de comunicações sem fio 未知

    公开(公告)号：BRPI0915011B1

    公开(公告)日：2020-11-10

    申请号：BRPI0915011

    申请日：2009-06-09

    Applicant: QUALCOMM INC

    Inventor： PETER J BLACK ,  RASHID AHMED AKBAR ATTAR ,  YU-CHEUN JOU

    IPC: H04L1/16 ,  H04L1/00 ,  H04L1/18 ,  H04W52/44 ,  H04W52/58

    Abstract: aumento da capacidade de comunicações sem fio. técnicas para aumentar a capacidade em um sistema de comunicações sem fio. em um aspecto, não transmissão sistemática, ou ''controle em branco', de quadros de taxas mínimas transmitidos em um sistema de comunicações é fornecido. em uma modalidade exemplar, quadro de um oitavo de taxa em um sistema de comunicações para voz cdma2000 são sistematicamente substituídos com quadros de taxa nula conduzindo bit de tráfego zero. os fornecimentos são, contudo, feitos para transmissão de certos designados como "críticos", por exemplo, por um vocoder (sistema de análise síntese). o receptor detecta a presença de transmissões de taxa nula ou de taxa não-nula e processa os quadros recebidos de acordo, incluindo atualizando um controle de energia de loop externo somente em resposta a quadros de taxa não-nula. outras técnicas para trocar o padrão de porta de transmissão piloto para auxiliar um receptor na detecção de quadros de taxa nula são fornecidas. em outro aspecto, o término antecipado de uma transmissão de sinal através um link de comunicações sem fio é fornecida. em uma modalidade exemplar, uma estação base (bs) transmite os grupos de controle de energia (pcg' s) para um quadro através um link dianteiro (fl) para uma estação móvel (ms) até a recepção precisa do quadro ser reconhecida pela ms através um link reverso (rl), possivelmente antes de todos os pcg' s do quadro serem recebidos através o fl. os métodos possíveis de sinalização de ack são definidos para os canais associados com o sistema de comunicações sem fio cdma2000. em outra modalidade exemplar, técnicas paro término antecipado de link dianteiro também são fornecidas.

    Method and apparatus for transmitting the sync channel message in a multi-carrier communication system
    2.
    发明专利
    Method and apparatus for transmitting the sync channel message in a multi-carrier communication system 未知

    公开(公告)号：AU2008202904B2

    公开(公告)日：2011-10-20

    申请号：AU2008202904

    申请日：2008-07-02

    Applicant: QUALCOMM INC

    Inventor： YU-CHEUN JOU

    IPC: H04B1/707 ,  H04L5/02 ,  H04L27/00 ,  H04L27/26 ,  H04Q7/38 ,  H04W56/00

    Abstract: A method and apparatus for transmitting broadcast information in a multi carrier communication system. The Sync Channel of the multi-carrier system is 5 transmitted a 1.25 MHz channel bandwidth (i.e., over a single carrier), and to specify the preferred channels for the Sync Channel transmission instead of the preferred channels for the entire multi-carrier system. The Sync Channel Message will carry the additional information to indicating the center frequency of a multi-carrier system within a reserved set of frequency bands and indicating the frequency of a single 10 carrier system in the reserved set of frequency bands. Considering the A block of the PCS band again, the preferred channels for Sync Channel transmission can be selected as channels 75, 150 and 225. This selection ensures that one of the preferred channels will always be used by any multi-carrier system regardless the location of its center channel. i TO PREFERRED (4 6 SELECT NEXT NO ACQUISITION -PERFERRED SCESU CHANNEL SCESU SYNC CHANNEL YES *SELECT MC NO0 r16 ACTIVATE H/W FOR SINGLE H/W FOR MC CARRIER RECEPTION RECEPTION BEGIN BEGIN RECEPTION RECEPTION OF COMMON OF COMMON CHANNELS CHANNELS

    METHOD AND DEVICE FOR PROVIDING A CHANNEL STRUCTURE FOR COMMUNICATION SYSTEMS
    3.
    发明专利
    METHOD AND DEVICE FOR PROVIDING A CHANNEL STRUCTURE FOR COMMUNICATION SYSTEMS 未知

    公开(公告)号：HK1120343A1

    公开(公告)日：2009-03-27

    申请号：HK08109177

    申请日：2000-12-21

    Applicant: QUALCOMM INC

    Inventor： REZAIIFAR RAMIN ,  YU-CHEUN JOU ,  TIEDEMANN EDWARD G JR

    IPC: E06C1/32 ,  E06C7/08 ,  E06C7/46 ,  E06C7/48 ,  H04W20090101 ,  H04W72/04 ,  H04W72/12

    Abstract: A portable ladder having stabilizer brackets slidably mounted on the ladder siderails to permit the ladder to be mounted to a flatbed trailer tiedown rail. The slidable stabilizer brackets are substantially self-adjusting in position, and adjust automatically, for example, when a load is removed from the trailer. The ladder may optionally include two sections pivotably interconnected to facilitate handling and storage. A lock to secure the two sections together in an extended position may also be provided. The advantage is a lightweight, portable ladder which can be used with practically any flatbed trailer. The ladder adjusts substantially automatically to the height of the trailer to provide stable access to the trailer bed.

    5.
    发明专利
    未知

    公开(公告)号：ID27486A

    公开(公告)日：2001-04-12

    申请号：ID990695

    申请日：1997-12-19

    Applicant: QUALCOMM INC

    Inventor： ODENWALDER JOSEPH P ,  TIEDEMANN EDWARD G JR ,  ANTONIO FRANKLIN P ,  YU-CHEUN JOU

    IPC: H04B1/707 ,  H04B7/26 ,  H04J11/00 ,  H04L20060101 ,  H04L1/00

    Abstract: A novel and improved method for implementing a high-transmission-rate over-the-air interface is described. A transmit system provides an in-phase channel set (90) and a quadrature-phase channel set (92). The in-phase channel set (90) is used to provide a complete set of orthogonal medium rate control and traffic channels. The quadrature-phase channel (92) set is used to provide a high-rate supplemental channel and an extended set of medium rate channels that are orthogonal to each other and the original medium rate channels. The high-rate supplemental channel is generated over a set of medium rate channels using a short channel code. The medium rate channel are generated using a set of long channel codes.

    DUAL-BAND HELICAL ANTENNA.
    6.
    发明专利
    DUAL-BAND HELICAL ANTENNA. 未知

    公开(公告)号：MY121293A

    公开(公告)日：2006-01-28

    申请号：MYPI9801349

    申请日：1998-03-26

    Applicant: QUALCOMM INC

    Inventor： DANIEL FILIPOVIC ,  ALI TASSOUDJI ,  TIDWELL STEPHEN B ,  ODENWALDER JOSEPH P ,  TIEDEMANN EDWARD G JR ,  YU-CHEUN JOU

    IPC: H01Q1/36 ,  H01Q1/38 ,  H01Q5/00 ,  H01Q5/378 ,  H01Q5/40 ,  H01Q11/08 ,  H01Q21/28

    Abstract: A DUAL-BAND HELICAL ANTENNA PROVIDES OPERATION IN TWO FREQUENCY BANDS. THE DUAL-BAND HELICAL ANTENNA INCLUDES TWO SINGLE-BAND ANTENNAS BANDS. THE DUAL-BAND HELICAL ANTENNA INCLUDES TWO SINGLE-BAND ANTENNAS (1304, 1308), EACH HAVING A FEED NETWORK (1804, 1808), A GROUND PLANE (412) OPPOSITE THE FEED NETWORK, AND A SET OF ONE OR MORE RADIATORS (104A TO 104D) EXTENDING FROM FEED NETWORK. A TAB (1504) EXTENDS FROM THE FEED NETWORK OF ONE OF THE ANTENNAS WHICH PROVIDES A FEED FOR THAT ANTENNA. THE TAB (1504) ALSO PROVIDES A PATH FOR CURRENT TO FLOW FROM THE RADIATORS OF THE SECOND ANTENNA ALONG THE AXIS OF THE SECOND ANTENNA TO THEREBY INCREASE THE ENERGY RADIATED IN THE DIRECTIONS PERPENDICULAR TO THE AXIS. THE GROUND PLANE OF ONE ANTENNA IS USED AS A SHORTING RING FOR THE OTHER ANTENNA.

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