公开(公告)号：AU2004265905A1

公开(公告)日：2005-02-24

申请号：AU2004265905

申请日：2004-07-23

Applicant: QUALCOMM INC

Inventor： FARMER DOMINIC ,  LEIRER LASZLO

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/25

Abstract: A method and apparatus for setting coarse GPS time in a GPS receiver in a mobile station (MS) that is communicating with a base station and a position determining entity (PDE). The MS requests an assistance message from the PDE that includes a sequence of predicted navigation bits, including a predicted time indicator field, which is then located and decoded. Coarse time is set responsive to the time indicator value. A Pattern Match Algorithm may be performed to provide more precise GPS time. In order to better set coarse time, an expected error in the Time of Week may be determined, by for example using the expected network latency. The system describe herein enables the use of IS-801 protocol by an MS in asynchronous networks by improving the coarse time setting process.

公开(公告)号：AT375520T

公开(公告)日：2007-10-15

申请号：AT04786097

申请日：2004-07-23

Applicant: QUALCOMM INC

Inventor： FARMER DOMINIC ,  LEIRER LASZLO

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/25

Abstract: A method and apparatus for setting coarse GPS time in a GPS receiver in a mobile station (MS) that is communicating with a base station and a position determining entity (PDE). The MS requests an assistance message from the PDE that includes a sequence of predicted navigation bits, including a predicted time indicator field, which is then located and decoded. Coarse time is set responsive to the time indicator value. A Pattern Match Algorithm may be performed to provide more precise GPS time. In order to better set coarse time, an expected error in the Time of Week may be determined, by for example using the expected network latency. The system describe herein enables the use of IS-801 protocol by an MS in asynchronous networks by improving the coarse time setting process.

公开(公告)号：ES2293347T3

公开(公告)日：2008-03-16

申请号：ES04786097

申请日：2004-07-23

Applicant: QUALCOMM INC

Inventor： FARMER DOMINIC ,  LEIRER LASZLO

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/25

Abstract: Un procedimiento para ajustar el tiempo GPS aproximado en un receptor GPS (29) que comprende: a) solicitar una secuencia de bits de navegación previstos a partir de una entidad de determinación de posición (PDE) (18), incluyendo los bits de navegación previstos un campo indicador de tiempo previsto; b) recibir los bits de navegación previstos dentro del receptor GPS (29); c) guardar un tiempo de recepción de los bits de navegación previstos por el receptor GPS (29); d) localizar el campo indicador de tiempo previsto dentro de los bits de navegación previstos; e) determinar un valor de tiempo aproximado en respuesta al campo indicador de tiempo previsto; y f) ajustar el tiempo GPS aproximado dentro del receptor GPS (29) en respuesta al valor de tiempo aproximado y al momento de recepción.

公开(公告)号：DE602004009452T2

公开(公告)日：2008-07-24

申请号：DE602004009452

申请日：2004-07-23

Applicant: QUALCOMM INC

Inventor： FARMER DOMINIC ,  LEIRER LASZLO

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/25

Abstract: A method and apparatus for setting coarse GPS time in a GPS receiver in a mobile station (MS) that is communicating with a base station and a position determining entity (PDE). The MS requests an assistance message from the PDE that includes a sequence of predicted navigation bits, including a predicted time indicator field, which is then located and decoded. Coarse time is set responsive to the time indicator value. A Pattern Match Algorithm may be performed to provide more precise GPS time. In order to better set coarse time, an expected error in the Time of Week may be determined, by for example using the expected network latency. The system describe herein enables the use of IS-801 protocol by an MS in asynchronous networks by improving the coarse time setting process.

公开(公告)号：DE602004009452D1

公开(公告)日：2007-11-22

申请号：DE602004009452

申请日：2004-07-23

Applicant: QUALCOMM INC

Inventor： FARMER DOMINIC ,  LEIRER LASZLO

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/25

Abstract: A method and apparatus for setting coarse GPS time in a GPS receiver in a mobile station (MS) that is communicating with a base station and a position determining entity (PDE). The MS requests an assistance message from the PDE that includes a sequence of predicted navigation bits, including a predicted time indicator field, which is then located and decoded. Coarse time is set responsive to the time indicator value. A Pattern Match Algorithm may be performed to provide more precise GPS time. In order to better set coarse time, an expected error in the Time of Week may be determined, by for example using the expected network latency. The system describe herein enables the use of IS-801 protocol by an MS in asynchronous networks by improving the coarse time setting process.

公开(公告)号：WO2005017551A3

公开(公告)日：2005-04-14

申请号：PCT/US2004023693

申请日：2004-07-23

Applicant: QUALCOMM INC ,  FARMER DOMINIC ,  LEIRER LASZLO

Inventor： FARMER DOMINIC ,  LEIRER LASZLO

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/25

CPC classification number: G01S19/25 ,  G01S5/0263 ,  G01S19/256 ,  G01S2205/008

Abstract: A method and apparatus for setting coarse GPS time in a GPS receiver in a mobile station (MS) that is communicating with a base station and a position determining entity (PDE). The MS requests an assistance message from the PDE that includes a sequence of predicted navigation bits, including a predicted time indicator field, which is then located and decoded. Coarse time is set responsive to the time indicator value. A Pattern Match Algorithm may be performed to provide more precise GPS time. In order to better set coarse time, an expected error in the Time of Week may be determined, by for example using the expected network latency. The system described herein enables the use of IS-801 protocol by an MS in asynchronous networks by improving the coarse time setting process.

Abstract translation: 一种用于在与基站和位置确定实体（PDE）通信的移动台（MS）中的GPS接收器中设置粗略GPS时间的方法和装置。 MS向PDE请求包括预测导航比特序列的辅助消息，该预测导航比特序列包括预测时间指示符字段，然后对其进行定位和解码。 粗时间根据时间指示值设置。 可以执行模式匹配算法以提供更精确的GPS时间。 为了更好地设置粗略时间，可以通过例如使用期望的网络等待时间来确定周中的预期误差。 这里描述的系统通过改进粗略的时间设置过程使异步网络中的MS能够使用IS-801协议。