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    Managing traffic in communications system having dissimilar CDMA channels
    101.
    发明专利
    Managing traffic in communications system having dissimilar CDMA channels 未知

    公开(公告)号：AU2008261159B2

    公开(公告)日：2010-05-13

    申请号：AU2008261159

    申请日：2008-12-22

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD

    IPC: H04L12/24 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L12/56 ,  H04W28/14 ,  H04W28/22 ,  H04W28/26 ,  H04W72/02 ,  H04W74/08 ,  H04W84/06

    Abstract: In a code division multiple access (CDMA) communications system including one or more terminals (such as customer premise equipments, CPEs) that communicate with a node (such as an Internet gateway) via at least a random access channel and a reservation-oriented channel, various schemes of managing communications traffic among the channels are provided. Decisions as to the channel on which a given terminal may transmit may be based on: traffic statistics (such as packet size or average data rate over a time period), traffic content (such as packet type), the terminal's output buffer loading (queue state, or “Q-state”), a history of the terminal's output buffer loading (one or more Q-states), and so forth. In one application, decisions in managing traffic in a live user's web browsing sessions may involve intelligent ascertainment of whether a given terminal is busy based on traffic analysis or output buffer loading.

    102.
    发明专利
    未知

    公开(公告)号：DE60137919D1

    公开(公告)日：2009-04-23

    申请号：DE60137919

    申请日：2001-04-13

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD ,  ESTEVES EDUARDO A ,  SINDHUSHAYANA NAGABHUSHANA T ,  BLACK PETER J ,  ATTAR RASHID A

    IPC: H04L1/18 ,  H04L1/16 ,  H04Q7/38

    Abstract: A method for wireless communication, comprising: receiving data in multiple forward link timeslots; determining a quality metric of the received data; requesting retransmission of the data via a first request scheme if the quality metric indicates the data has not been received correctly; and if retransmission is requested and the data is not received correctly, requesting retransmission of the data via a second request scheme.

    103.
    发明专利
    未知

    公开(公告)号：AT406711T

    公开(公告)日：2008-09-15

    申请号：AT00957934

    申请日：2000-08-31

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD

    IPC: H04B7/06 ,  H04B7/26

    Abstract: In a CDMA data communication system capable of variable rate transmission, utilization of beamforming techniques decreases the average interference caused by transmissions of a base station (104) to subscriber stations (112) in neighboring cells (124). Base stations (102, 104) utilize multiple transmit antennas (106, 108), each transmitting signals at controlled phases, to form transmit signal beams (110, 118, 122) corresponding to individual subscriber stations (112, 116, 114). Data and reference signals are transmitted along beams (110, 118, 122) that change according to fixed time slots and subslots in order to maximize carrier-to-interference ratios (C/I) measured at subscriber stations (112, 116, 114).

    104.
    发明专利
    未知

    公开(公告)号：BR0312080A

    公开(公告)日：2007-05-29

    申请号：BR0312080

    申请日：2003-06-20

    Applicant: QUALCOMM INC

    Inventor： SCHIFF LEONARD N ,  JALALI AHMAD

    IPC: H04B7/216 ,  H04B7/185 ,  H04B7/26

    Abstract: Orthogonal CDMA (OCDMA) in the return link of a satellite based communications system provides improved bandwidth efficiencies; increased ability to overcome channel degrading phenomenon; reduced transmission power; or various combinations thereof. By achieving code synchronization needed for advantageous use of OCDMA in the return link of a satellite based communication system, a plurality of terminals, each with a unique time slot/code channel assignment, may transmit concurrently, with the same, or lower, aggregate power as would be used by a single terminal using TDMA. Use of OCDMA in the return link allows one or more terminals, each in a common beam and assigned a common time slot, to transmit at a higher transmission power to overcome channel degradation effects. The ability to allow for higher transmission power for a particular terminal can increase the effective data rate for that terminal by enabling the use of a higher order modulation technique.

    SYNCHRONIZATION ON REVERSE LINK OF MOBILE MODE COMMUNICATIONS SYSTEMS
    107.
    发明专利
    SYNCHRONIZATION ON REVERSE LINK OF MOBILE MODE COMMUNICATIONS SYSTEMS 未知

    公开(公告)号：CA2568605A1

    公开(公告)日：2005-12-22

    申请号：CA2568605

    申请日：2005-05-27

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD ,  SCHIFF LEONARD N ,  SHI WEI

    IPC: H04B7/185

    Abstract: Methods and apparatus are disclosed to provide orthogonal multiple access communication in a return link of a satellite communication system. In one embodiment, a closed loop control of a transmit parameter associated with transmission of signals may be performed. In addition, changes in motion of a terminal are monitored such that an open loop control of the transmit parameter is performed, if the detected change meets a certain threshold. For example, an open control is performed if an abrupt or sudden motion is detected.

    MANAGING TRAFFIC IN COMMUNICATIONS SYSTEM HAVING DISSIMILAR CDMA CHANNELS
    109.
    发明专利
    MANAGING TRAFFIC IN COMMUNICATIONS SYSTEM HAVING DISSIMILAR CDMA CHANNELS 未知

    公开(公告)号：CA2539786A1

    公开(公告)日：2005-04-07

    申请号：CA2539786

    申请日：2004-09-21

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD

    IPC: H04L12/56 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L12/24 ,  H04W28/14 ,  H04W28/22 ,  H04W28/26 ,  H04W72/02 ,  H04W74/08 ,  H04W84/06

    Abstract: In a code division multiple access (CDMA) communications system including one or more terminals (such as customer premise equipments, CPEs) that communicate with a node (such as an Internet gateway) via at least a random access channel and a reservation-oriented channel, various schemes of managing communications traffic among the channels are provided. Decisions as to the channel on which a given terminal may transmit may be based on: traffic statistics (such as packet size or average data rate over a time period), traffic content (such as packet type), the terminal's output buffer loading (queue state, or “Q-state”), a history of the terminal's output buffer loading (one or more Q-states), and so forth. In one application, decisions in managing traffic in a live user's web browsing sessions may involve intelligent ascertainment of whether a given terminal is busy based on traffic analysis or output buffer loading.

    Managing traffic in communications system having dissimilar CDMA channels
    110.
    发明专利
    Managing traffic in communications system having dissimilar CDMA channels 未知

    公开(公告)号：AU2004306092A1

    公开(公告)日：2005-04-07

    申请号：AU2004306092

    申请日：2004-09-21

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD

    IPC: H04L12/56 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L12/24 ,  H04W28/14 ,  H04W28/22 ,  H04W28/26 ,  H04W72/02 ,  H04W74/08 ,  H04W84/06

    Abstract: In a code division multiple access (CDMA) communications system including one or more terminals (such as customer premise equipments, CPEs) that communicate with a node (such as an Internet gateway) via at least a random access channel and a reservation-oriented channel, various schemes of managing communications traffic among the channels are provided. Decisions as to the channel on which a given terminal may transmit may be based on: traffic statistics (such as packet size or average data rate over a time period), traffic content (such as packet type), the terminal's output buffer loading (queue state, or “Q-state”), a history of the terminal's output buffer loading (one or more Q-states), and so forth. In one application, decisions in managing traffic in a live user's web browsing sessions may involve intelligent ascertainment of whether a given terminal is busy based on traffic analysis or output buffer loading.

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