GNSS RECEIVER SYSTEM AND RELATED METHOD THEREOF

• US 20090115657A1
• Filed: 11/06/2007
• Published: 05/07/2009
• Est. Priority Date: 11/06/2007
• Status: Abandoned Application

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Tai, Chih-Ju, Huang, Kung-Shuan, Cheng, Ann-Tzung
• Application Number:
  US11/935,417
• Publication Number:
  US 20090115657A1
• Time in Patent Office: Days
• US Class Current: 342/357.420
• CPC Class Codes: G01S 19/05 providing aiding data

Abstract

A global navigation satellite system (GNSS) receiver system includes a first mobile GNSS receiver and a second mobile GNSS receiver. The first mobile GNSS receiver includes: a first receiver logic for receiving satellite signals and determining positioning related information according to the satellite signals; a data provider logic for providing at least an assisted data according to the positioning related information; and a first communication interface for outputting the assisted data. The second mobile GNSS receiver includes a second communication interface, for communicating with the first communication interface to receive the assisted data from the communication interface; a data collector logic for collecting assisted information from the assisted data; and a second receiver logic for determining positioning information of the second mobile GNSS receiver according to the assisted information and satellite signals.

Claims

1. A global navigation satellite system (GNSS) receiver system, comprising:

a first mobile GNSS receiver, comprising;

a first receiver logic, for receiving satellite signals and determining positioning related information according to the satellite signals;

a data provider logic, coupled to the first receiver logic, for providing at least an assisted data according to the positioning related information; and

a first communication interface, coupled to the data provider logic, for outputting the assisted data; and

a second mobile GNSS receiver, comprising;

a second communication interface, for communicating with the first communication interface to receive the assisted data from the communication interface;

a data collector logic, coupled to the second communication interface, for collecting assisted information from the assisted data; and

a second receiver logic, coupled to the data collector logic, for determining positioning information of the second mobile GNSS receiver according to the assisted information and satellite signals.

2. The GNSS receiver system of claim 1, wherein the first communication interface outputs the assisted data through broadcasting at least an advertisement message.

3. The GNSS receiver system of claim 1, wherein the data collector logic generates a request message for the assisted data and the second communication interface further outputs the request message;

and the first communication interface further receives the request message and the data provider logic provides the assisted data in response to the request message.

4. The GNSS receiver system of claim 1, wherein the first communication interface communicates with the second communication interface through a wireless communication link.

5. A method of determining positioning information of a second mobile GNSS receiver, comprising:

utilizing a first GNSS receiver to determine at least an assisted data associated with positioning of the second mobile GNSS receiver according to satellite signals and then output the assisted data; and

receiving the assisted data from the first GNSS receiver and referring to the assisted data and satellite signals for determining the positioning information of the second mobile GNSS receiver.

6. The method of claim 5, wherein the step of utilizing the first GNSS receiver to output the assisted data comprises broadcasting at least an advertisement message to output the assisted data.

7. The method of claim 5, further comprising:

generating a request message for the assisted data; and

outputting the request message;

wherein the step of utilizing the first GNSS receiver to determine the assisted data comprises;

utilizing the first GNSS receiver to receive the request message and then provide the assisted data in response to the request message.

8. The method of claim 5, wherein the assisted data is transmitted through a wireless communication link between the first GNSS receiver and the second mobile GNSS receiver.