Method of transmitting positions data via cellular communication system

• US 6,393,292 B1
• Filed: 04/13/1999
• Issued: 05/21/2002
• Est. Priority Date: 04/13/1999
• Status: Active Grant

• Current Assignee: American GNC Corporation
• Original Assignee: Ching-Fang Lin
• Inventors: Lin, Ching-Fang
• Primary Examiner(s): Le, Thanh Cong
• Assistant Examiner(s): LE, LANA N
• Application Number:
  US09/291,503
• Time in Patent Office: 1,134 Days
• Field of Search: 455/435, 455/456, 455/457, 701/213, 701/207, 701/214, 701/201, 342/357.16, 342/450, 342/457, 342/357.01, 342/357.06
• US Class Current: 455/456.5
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 60/04 using triggered events

Abstract

A method of transmitting position data via cellular communication system includes the steps of receiving position data from a position producer, attaching the position data to a location registration data stream, and sending the position data along with the location registration data to a base station. This method takes advantages of the existing location updating procedure in a cellular network system to transmit precision position data of a mobile station. It does not need a dialing up to transmit position data. By utilizing this method, the position data of the mobile station can be delivered to the base station or cellular network whenever the mobile station is powered on.

Claims

1. A method of transmitting position data via cellular communication system, comprising the steps of:

(a) generating a position data by a position producer;

(b) sending said position data to a mobile station from said position producer;

(c) attaching said position data to a location registration data stream by

(i) encoding said position data during a signal processing to form coded data, wherein a common ciphering scheme is applied to said coded position data;

(ii) modulating said coded data including said position data during said signal processing, wherein said modulation scheme is a GMSK (Gaussian-filtered Minimum Shift Keying) modulation;

(iii) converting said coded data which is a registry data stream as well as said position data into analog transmit signals;

(iv) amplifying said analog transmit signal; and

(v) broadcasting said analog transmit signal from said mobile station;

(d) sending said position data along with a location registration data stream to a base station from said mobile station so as to inform which area does said mobile station currently reside in; and

(e) retrieving said position data by said base station.

2. A method of transmitting position data via cellular communication system, as recited in claim 1, before step (c), further comprising a receiving step of receiving a mobile station country code, a mobile network code, and a location area identity from said base station, wherein a combination of said mobile station country code, said mobile network code, and said location area identity gives a service area in which said mobile station currently resides.

3. A method of transmitting position data via cellular communication system, as recited in claim 2, wherein in step (c), said location registration data stream includes said mobile station identification, said mobile station country code, said mobile network code, and said location area identity.

4. A method of transmitting position data via cellular communication system, as recited in claim 2 or 6, wherein said position data is attached after said mobile country code and before said mobile network code.

5. A method of transmitting position data via cellular communication system, as recited in claim 2 or 6, wherein said position data is attached after said mobile network code and before said location area identification.

6. A method of transmitting position data via cellular communication system, as recited in claim 1, wherein in step (c), said location registration data stream includes said mobile station identification, said mobile station country code, said mobile network code, and said location area identity.

7. A method of transmitting position data via cellular communication system, as recited in any one of claims 1, 6 and 3, wherein in step (d), said position data is sent along with said location registration data by said mobile station to said base station periodically.

8. A method of transmitting position data via cellular communication system, as recited in any one of claims 1, 6 and 3, wherein in step (d), said position data is sent along with said location registration data by said mobile station to said base station whenever said mobile station is powered on.

9. A method of transmitting position data via cellular communication system, as recited in any one of claims 1, 6 and 3, wherein in step (d), said position data is sent along with said location registration data by said mobile station to said base station when said mobile station detects a location area change.

10. A method of transmitting position data via cellular communication system, as recited in any one of claims 1, 6 and 3, wherein in step (e), further comprising a step of storing said position data in a home location register of a cellular network.

11. A method of transmitting position data via cellular communication system, as recited in any one of claims 1, 6 and 3, wherein in step (e), further comprising a step of storing said position data in a visitor location register of a cellular network.

12. A method of transmitting position data via cellular communication system, as recited in claim 1, wherein after step (e), further comprising a step of sending said position data from said base station to a remotely monitoring center via an ISDN/PSTN (Integrated Services Digital Network/Public-Switched Telephone Network).

13. A method of transmitting position data via cellular communication system, as recited in claim 1, wherein said position data is attached to a head of said location registration data.

14. A method of transmitting position data via cellular communication system, as recited in claim 1, wherein said position data is attached after an end of said location registration data.