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    Wireless network optimization through remote device data
    2.
    发明专利
    Wireless network optimization through remote device data 有权
    通过远程设备数据实现无线网络优化

    公开(公告)号：JP2010081626A

    公开(公告)日：2010-04-08

    申请号：JP2009250660

    申请日：2009-10-30

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： ROSS DAVID J ,  KENAGY JASON B ,  DAI JIN ,  CASSETT TIA M ,  AGRE DANIEL H ,  CHMAYTELLI MAZEN ,  MORTENSEN ARNE CROIZAT JOSEPH ,  CHANDHOK RAVINDER

    IPC: H04M3/50 ,  H04W24/02 ,  H04L12/28 ,  H04L12/56 ,  H04M3/00 ,  H04M3/42 ,  H04Q1/00 ,  H04W8/22 ,  H04W8/24 ,  H04W24/00

    CPC classification number: H04W24/00 ,  H04W8/22 ,  H04W24/02

    Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for optimizing an active wireless network. SOLUTION: The present invention relates to a system 10 for optimizing a wireless network 14 having at least data communication between computer devices 12, 18, 20, 22 selectively connected thereto. At least one of the computer devices 12, 18, 20, 22 is a remotely located wireless device. The wireless device 12, 18, 20, 22 has a resident network optimization application that causes the selective transmission of network status data to at least one other computer device on the wireless network 14. Then, either the data-receiving computer devices 12, 18, 20, 22 or another computer devices 12, 18, 20, 22 on the wireless network 14 optimizes the wireless network 14 on the basis of the received network status data. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于优化主动无线网络的系统和方法。 解决方案：本发明涉及一种用于优化无线网络14的系统10，无线网络14至少具有选择性地连接到其上的计算机设备12,18,20,22之间的数据通信。 计算机设备12,18,20,22中的至少一个是位于远程的无线设备。 无线设备12,18,20,22具有驻留网络优化应用，其使网络状态数据选择性地传输到无线网络14上的至少一个其他计算机设备。然后，数据接收计算机设备12,18 ，20,22或无线网络14上的另一计算机设备12,18,20,22根据所接收的网络状态数据来优化无线网络14。 版权所有（C）2010，JPO＆INPIT

    Accurate range and range rate determination in a satellite communications system
    5.
    发明专利
    Accurate range and range rate determination in a satellite communications system 未知

    公开(公告)号：AU6385199A

    公开(公告)日：2000-03-27

    申请号：AU6385199

    申请日：1999-09-08

    Applicant: QUALCOMM INC

    Inventor： DAI JIN ,  LEVANON NADAV ,  AMES BILL ,  VICTOR ED ,  DETERMAN JIM

    IPC: G01S19/25 ,  G01S5/12

    Abstract: The present invention is a system and method for accurately determining the distance (range) between one or more satellites and a user terminal and the rate of change (range rate) of that distance. When accurately determined according to the present invention, these quantities can be used to determine the location of the user terminal with a high degree of accuracy. When one satellite is available, the present invention determines the range and range rate based on the Doppler frequency shift that a signal experiences between the satellite and the user terminal, the round trip delay a signal experiences during transmission from the satellite to the user terminal and back via a satellite to a gateway, the Doppler frequency shift a signal experiences between the satellite and the gateway, and the timestamps of the measurements. When a second satellite is available, the present invention determines the range and range rate between the second satellite and the user terminal based on the round trip delay, the Doppler frequency shift that a signal experiences between the second satellite and the user terminal, and the difference in arrival times at the user terminal of the signals from the satellites.

    AIDING BEAM IDENTIFICATION IN A SATELLITE SYSTEM
    8.
    发明专利
    AIDING BEAM IDENTIFICATION IN A SATELLITE SYSTEM 未知

    公开(公告)号：CA2464369A1

    公开(公告)日：2003-05-01

    申请号：CA2464369

    申请日：2002-10-23

    Applicant: QUALCOMM INC

    Inventor： NGAI FRANCIS MING-MENG ,  ANDERSON JON JAMES ,  DAI JIN ,  VICTOR EDWARD B

    IPC: H04B1/00 ,  H04B7/185

    Abstract: A system and method for determining timing offset errors in a satellite syst em based upon Doppler and Doppler rate of change is provided. A user terminal (110, 113) determines first and second timing offsets (902, 906) respectivel y associated with first and second satellite beams (1142, 1204) from respectiv e first and second satellites (102, 104). Next, the user terminal (110, 113) determines the Doppler and Doppler rate of change associated with the first and second satellite beams (1100, 1102). A timing offset is estimated from t he measured Doppler and Doppler rate of change and is then compared with the us er terminal's own determined timing offset (906). If the comparison does not produce a value within a predetermined threshold, a beam identification erro r is declared.

    Fast user terminal position determination in a satellite communications systems
    9.
    发明专利
    Fast user terminal position determination in a satellite communications systems 未知

    公开(公告)号：AU6029999A

    公开(公告)日：2000-03-27

    申请号：AU6029999

    申请日：1999-09-08

    Applicant: QUALCOMM INC

    Inventor： DAI JIN

    IPC: G01S5/12 ,  G01S5/14 ,  G01S19/25

    Abstract: An apparatus, method, and process for quickly and accurately determining the position of a user terminal (124,126) in a satellite communications system (100). An initial coarse estimate of the radius of the Earth at a terminal position is made (302,402). The geometry of satellites being used (116,118) and the user terminal (124,126) is then determined. Two satellites are used, the satellite-user terminal geometry includes the range (406,408) of each satellite (116,118) with respect to the user terminal (124,126). An initial position estimate is determined based on the radius and the satellite-user terminal geometry. The coarse radius estimate (304,404) can then be formed into a fine estimate (310,412) and the initial position estimate further refined.

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