Systems and methods for transmitting global positioning system information

• US 7,574,218 B2
• Filed: 04/22/2004
• Issued: 08/11/2009
• Est. Priority Date: 01/16/2002
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Wireless Corporation (Kyocera Corporation)
• Inventors: Chang, Henry, Dunn, Doug, Forrester, Tim
• Primary Examiner(s): Tran; CongVan
• Application Number:
  US10/830,371
• Publication Number:
  US 20040198449A1
• Time in Patent Office: 1,937 Days
• Field of Search: 455/456.5, 455/456.2, 455/456.1, 455/422, 455/414.3, 455/456.3, 455/503, 455/561, 455/3.02, 455/3.03, 455/3.06, 455/67.11, 455/403, 455/461, 455/404.2, 342/357.06, 342/357.1, 342/352, 342/357.01, 342/357.09, 342/357.12, 342/357.15, 701/214, 701/213, 701/215
• US Class Current: 455/456.1
• CPC Class Codes: G01S 19/05 providing aiding data
• CPC Class Codes: G01S 19/09 providing processing capability normally carried out by the receiver
• CPC Class Codes: G01S 19/246 involving long acquisition integration times, extended snapshots of signals or methods specifically directed towards weak signal acquisition

Abstract

A wireless communication system includes a location assist system that is configured to interface with a network, such as the Internet, or a server, such as an HTTP server, to obtain GPS information. The GPS information can then be used to provide wireless devices within the wireless communication system with GPS assistance information that allows the wireless devices to quickly and efficiently acquire GPS satellites signals.

Claims

1. A base station, comprising:

a receiver configured to receive GPS satellite signals from a plurality of GPS satellites, the GPS satellite signals comprising GPS Almanac information;

a processor configured to track locations of the plurality of GPS satellites using the GPS Almanac information and generate GPS assist information based on the GPS satellite signals, the GPS assist information comprising at least a portion of the GPS satellite information and at least one of sensitivity assist (SA) information and acquisition assist (AA) information; and

a transmitter configured to simultaneously transmit the GPS assist information to a plurality of GPS enabled devices;

wherein the base station is configured to receive a registration request from at least one of the plurality of GPS enabled devices, and to transmit the GPS assist information to at least one of the plurality of GPS enabled devices in response to the received registration request.

2. A base station, comprising:

a receiver configured to receive GPS satellite signals from a plurality of GPS satellites, the GPS satellite signals comprising GPS Almanac information;

a processor configured to track locations of the plurality of GPS satellites using the GPS Almanac information and generate GPS assist information based on the GPS satellite signals, the GPS assist information comprising at least a portion of the GPS satellite information and at least one of sensitivity assist (SA) information and acguisition assist (AA) information; and

a transmitter configured to simultaneously transmit the GPS assist information to a plurality of GPS enabled devices;

wherein the transmitter is configured to transmit the GPS assist information in the GPS frequency band.