Satellite based global paging system

• US 5,239,670 A
• Filed: 11/30/1989
• Issued: 08/24/1993
• Est. Priority Date: 11/30/1989
• Status: Expired due to Term

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Schwendeman, Robert J., Kuznicki, William J.
• Primary Examiner(s): Eisenzopf, Reinhard J.
• Assistant Examiner(s): Charouel, Lisa
• Application Number:
  US07/444,187
• Time in Patent Office: 1,363 Days
• Field of Search: 455/12, 455/13, 455/33, 455/34, 455/56, 455/12.1, 455/13.1, 455/13.4, 455/33.1, 455/33.2, 455/33.3, 455/33.4, 455/53.1, 455/54.1, 455/54.2, 455/56.1, 455/62 , 455/34.1, 455/34.2, 379/58, 379/59, 379/60, 379/63, 340/825.44, 340/825.47, 340/825.49
• US Class Current: 340/7.2
• CPC Class Codes: H04B 7/18567 Arrangements for providing additional services to the basic mobile satellite telephony service
• CPC Class Codes: H04W 84/022 One-way selective calling networks, e.g. wide area paging

Abstract

A satellite based paging communication system comprises a plurality of terrestrial stations capable of communicating the paging information with at least one satellite. The satellite(s), in turn, are capable of communicating the paging information to at least one terrestrial receiver or terrestrial station. Also included is at least one control station for determining where and how to deliver the paging information to one or more of a plurality of terrestrial receivers (pagers), at least some of which are capable of receiving the paging information from one or more of the satellites and one or more of the terrestrial stations.

Claims

1. A paging communication system, comprising:

terrestrial based communication means for communicating paging information to a control means and to at least one of a plurality of selective call receivers, the terrestrial based communication means also for communicating the paging information to a satellite based communication means;

the satellite based communication means for communicating the paging information to at least one of the plurality of selective call receivers and at least some of the terrestrial based communication means;

the control means for determining where to deliver the paging information and operational parameters and operational protocols for delivery of the paging information to the plurality of selective call receivers; and

the plurality of selective call receivers, at least some of which receive the paging information from the satellite based communication means and the terrestrial based communication means.

2. The system of claim 1, wherein the satellite based communication means comprises a plurality of satellites arranged in a satellite network orbiting a celestial body.

3. The system of claim 1, wherein the satellite based communication means comprises at least one geostationary satellite orbiting a celestial body.

4. The system of claim 1, wherein the satellite based communication means adapts itself to communicate the paging information to one of the plurality of selective call receivers in accordance with the operational parameters and the operational protocols, the operational parameters and the operational protocols determined in response to instructions provided by an individual operating the one of the plurality of selective call receivers designated to receive the paging information.

5. The system of claim 4, wherein the satellite based communication means adapts itself to communicate the paging information to the plurality of selective call receivers in accordance with the operational protocols, the operational protocols comprising at least a paging communication protocol.

6. The system of claim 4, wherein the satellite based communication means adapts itself to communicate the paging information to the plurality of selective call receivers in accordance with the operational parameters, the operational parameters comprising at least a paging communication frequency.

7. The system of claim 1, wherein the terrestrial based communication means includes means for converting the paging information received from the satellite based communication means to accommodate one of the plurality of selective call receivers designated to receive the paging information.

8. The system of claim 1, wherein some of the terrestrial based communication means is coupled to contemporary paging communication equipment.

9. The system of claim 1, wherein the plurality of selective call receivers operate to monitor the terrestrial based communication means and the satellite based communication means.

10. The system of claim 9, wherein the plurality of selective call receivers operate to monitor the terrestrial based communication means and the satellite based communication means by automatically scanning radio frequency channels used by the terrestrial based communication means and the satellite based communication means.

11. The system of claim 10, wherein priority is given to the radio frequency channels used by the terrestrial based communication means while automatically scanning the radio frequency channels used by the terrestrial based communication means and the satellite based communication means.

12. The system of claim 1, wherein the control means includes a memory means for storing at least information representing a preferred paging area for at least some of the plurality of selective call receivers operative in the system.

13. The system of claim 1, wherein the control means includes a memory means for storing the operational parameters, wherein the operational parameters comprise at least information representing a preferred paging frequency for at least some of the plurality of selective call receivers operative in the system.

14. The system of claim 1, wherein the control means includes a memory means for storing the operational protocols, wherein the operational protocols comprise at least information representing a preferred paging protocol for at least some of the plurality of selective call receivers operative in the system.

15. The system of claim 1, wherein the control means comprises memory means for storing the operational parameters and the operational protocols, and wherein the control means determines where and how to deliver the paging information to the plurality of selective call receivers in accordance with the operational parameters and the operational protocols stored within the memory means.

35. The paging communication system of claim 1, wherein each of the at least some of the plurality of selective call receivers receiving the paging information from the satellite based communication means and the terrestrial based communication means comprises:

first receiving means for receiving the paging information from the satellite based communication means;

second receiving means for receiving the paging information from the terrestrial based communication means;

receiver control means for controlling the first receiving means and the second receiving means to provide priority operation to the second receiving means for receiving the paging information from the terrestrial based communication means to attempt to receive the paging information therefrom before attempting to receive the paging information from the satellite based communication means.

36. The selective call receiver of claim 35, wherein the receive control means includes means for over-riding the priority operation provided to the second means for receiving the paging information from the terrestrial based communication means.

37. The selective call receiver of claim 36, wherein the means for over-riding the priority operation provided to the second means for receiving the paging information from the terrestrial based communication means is responsive to operator entered commands.

38. The selective call receiver of claim 36, wherein the means for over-riding the priority operation provided to the second means for receiving the paging information from the terrestrial based communication means is responsive to commands contained in the paging information.

16. A paging communication system, comprising:

a plurality of terrestrial receivers, at least some of which receive paging information from at least one satellite and from at least one of a plurality of terrestrial stations;

the plurality of terrestrial stations for communicating the paging information with the at least one satellite, and for adapting the paging information so as to be compatible with at least one of the plurality of terrestrial receivers, wherein the at least one of the plurality of terrestrial receivers operates to monitor the at least one of the terrestrial stations and the at least one satellite;

the at least one satellite for communicating the paging information to the at least one of the plurality of terrestrial stations and at least one control station, and further for directly transmitting the paging information to the at least one of the plurality of terrestrial receivers; and

the at least one control station for determining where to deliver the paging information and operational parameters and operational protocols to deliver the paging information to the plurality of terrestrial receivers.

17. The system of claim 16, wherein the at least one of the plurality of terrestrial receivers operates to monitor the at least one of the terrestrial stations and the at least one satellite by automatically scanning radio frequency channels used by the at least one of the terrestrial stations and the at least one satellite.

18. A method for providing a message to one or more areas on a celestial body, comprising the steps of:

at any of a plurality of terrestrial stations;

(a) receiving the message;

(b) transmitting the message to a control station;

at the control station;

(a) receiving the message;

(b) determining where to deliver the message and operational parameters and operational protocols for delivering the message;

(c) transmitting the message to at least one of a plurality of satellites orbiting the celestial body;

at any of the plurality of satellites;

(a) receiving the message from the control station;

(b) determining whether to transmit the message toward the celestial body or another one of the plurality of satellites;

(c) transmitting the message in accordance with the determination of step (b).

19. The method of claim 18, wherein the control station step of determining where and operational parameters and operational protocols to deliver the message comprises the steps of:

(i) examining a memory means to extract information representing preferred message reception instructions comprising the operational parameters and the operational protocols for delivering the message; and

(ii) forming message delivery instructions based at least in part upon the information representing preferred message reception instructions.

20. The method of claim 18, wherein the step of transmitting the message at any of the plurality of satellites comprises transmitting the message to the control station when the message is directed toward the control station and the control station is within the communication abilities of the one of the plurality of satellites transmitting.

21. The method of claim 18, wherein the step of transmitting the message at any of the plurality of satellites comprises transmitting the message to the another one of the plurality of satellites when the message is directed toward the control station but the control station is not within the communication abilities of the one of the plurality of satellites transmitting.

22. The method of claim 18, wherein the step of transmitting the message at any of the plurality of satellites comprises transmitting the message toward the celestial body when the message is directed toward one of the terrestrial stations that is within the communication abilities of the one of the plurality of satellites transmitting.

23. The method of claim 18, wherein the step of transmitting the message at any of the plurality of satellites comprises transmitting the message to another satellite when the message is directed toward one of the terrestrial stations but the one of the terrestrial stations is not within the communication abilities of the one of the plurality of satellites transmitting.

24. The method of claim 18, wherein the step of transmitting the message at any of the plurality of satellites comprises transmitting the message toward the celestial body when the message is directed toward a selective call receiver that is within the communication abilities of the one of the plurality of satellites transmitting.

25. The method of claim 18, wherein the step of transmitting the message at any of the plurality of satellites comprises transmitting the message to the another one of the plurality of satellites when the message is directed toward a selective call receiver but the selective call receiver is not within the communication abilities of the one of the plurality of satellites transmitting.

26. The method of claim 18, which includes the step at any of the plurality of terrestrial stations of (c) receiving the message from at least one of the plurality of satellites and transmitting the message to one or more selective call receivers.

27. The method of claim 26, which includes the step of adapting the message to be compatible with the one or more selective call receivers in accordance with the operational parameters and the operational protocols determined by the control station prior to the transmission thereof.

28. The method of claim 18, which includes the steps at one or more selective call receivers of:

(a) determining whether to monitor at least one of the plurality of terrestrial stations and at least one of the plurality of satellites;

(b) operating in accordance with step (a) to receive the message.

29. A communication system operative on a celestial body having a plurality of individuals thereon, at least one of the plurality of individuals having a selective call receiver for receiving a message from at least one terrestrial station and from a satellite network comprising at least one satellite orbiting the celestial body, the communication system comprising:

the at least one terrestrial station positioned on the celestial body for communicating the message received from the satellite network orbiting the celestial body to the at least one of the plurality of individuals having the selective call receiver and for communicating the message to a control means via the satellite network;

the control means for receiving the message, determining where and operational parameters and operational protocols for delivering the message to the at least one of the plurality of individuals having the selective call receiver, and for transmitting the message to the satellite network orbiting the celestial body; and

the satellite network comprising the at least one satellite orbiting the celestial body and arranged to communicate the message toward at least a portion of the celestial body for reception by one of a group consisting essentially of the at least one of the plurality of individuals having the selective call receiver and the at least one terrestrial station.

30. The system of claim 29, wherein the control means includes a memory means for storing information representing user defined message reception preferences, the user defined message reception preferences including the operational parameters and the operational protocols.

31. The system of claim 29, wherein each of the at least one satellite in the satellite network includes means for adjusting transmission characteristics thereof so as to transmit the message only to desired portions of the celestial body.

32. The system of claim 29, wherein at least some of the at least one terrestrial station is operably interconnected with contemporary paging equipment.

33. The system of claim 29, wherein each of the at least one satellite in the satellite network includes means for reducing transmitter power when transmitting information to the control means or any of the plurality of terrestrial stations.

34. The system of claim 29, wherein the selective call receiver of the at least one of the plurality of individuals is constructed and arranged to receive paging information in accordance with one or more of the operational protocols.